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investigation of the association of genetic susceptibility risk with somatic mutation burden in breast cancer.
Title
An investigation of the association of genetic susceptibility risk with somatic mutation burden in breast cancer.
Creator
Zhu, Bin, Mukherjee, Anwesha, Machiela, Mitchell J, Song, Lei, Hua, Xing, Shi, Jianxin, Garcia-Closas, Montserrat, Chanock, Stephen J, Chatterjee, Nilanjan
Abstract/Description
Genome-wide association studies have reported nearly 100 common germline susceptibility loci associated with the risk for breast cancer. Tumour sequencing studies have characterised somatic mutation profiles in breast cancer patients. The relationship between breast cancer susceptibility loci and somatic mutation patterns in breast cancer remains largely unexplored. We used single-nucleotide polymorphism (SNP) genotyping array data and tumour exome sequencing data available from 638 breast...
Show moreGenome-wide association studies have reported nearly 100 common germline susceptibility loci associated with the risk for breast cancer. Tumour sequencing studies have characterised somatic mutation profiles in breast cancer patients. The relationship between breast cancer susceptibility loci and somatic mutation patterns in breast cancer remains largely unexplored. We used single-nucleotide polymorphism (SNP) genotyping array data and tumour exome sequencing data available from 638 breast cancer patients of European ancestry from The Cancer Genome Atlas (TCGA) project. We analysed both genotype data and, when necessary, imputed genotypes for 90 known breast cancer susceptibility loci. We performed linear regression models to investigate possible associations between germline risk variants with total somatic mutation count (TSMC), as well as specific mutation types. We examined individual SNP genotypes, as well as a multi-SNP polygenic risk score (PRS). Models were statistically adjusted for age at diagnosis, stage, oestrogen-receptor (ER) and progesterone-receptor (PR) status of breast cancer. We also performed stratified analyses by ER and PR status. We observed a significant inverse association (P=8.75 × 10(-6); FDR=0.001) between the risk allele in rs2588809 of the gene RAD51B and TSMC across all breast cancer patients, for both ER(+) and ER(-) tumours. This association was also evident for different types of mutations. The PRS analysis for all patients, with or without rs2588809, showed a significant inverse association (P=0.01 and 0.04, respectively) with TSMC. This inverse association was significant in ER(+) patients with the ER(+)-specific PRS (P=0.02), but not among ER(-) patients for the ER(-)-specific PRS (P=0.39). We observed an inverse association between common germline risk variants and TSMC, which, if confirmed, could provide new insights into how germline variation informs our understanding of somatic mutation patterns in breast cancer.
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Date Issued
2016-09-06
Identifier
FSU_pmch_27467053, 10.1038/bjc.2016.223, PMC5023771, 27467053, 27467053, bjc2016223
Format
Citation
Patient Opinions About Screening for Suicide Risk in the Adult Medical Inpatient Unit.
Title
Patient Opinions About Screening for Suicide Risk in the Adult Medical Inpatient Unit.
Creator
Snyder, Deborah J, Ballard, Elizabeth D, Stanley, Ian H, Ludi, Erica, Kohn-Godbout, Julie, Pao, Maryland, Horowitz, Lisa M
Abstract/Description
As hospital clinicians and administrators consider implementing suicide risk screening on medical inpatient units, patient reactions to screening can provide essential input. This post hoc analysis examined patient opinions about screening for suicide risk in the medical setting. This analysis includes a subsample of a larger quality improvement project designed to screen medically hospitalized patients for suicide risk. Fifty-three adult medical inpatients at a clinical research hospital...
Show moreAs hospital clinicians and administrators consider implementing suicide risk screening on medical inpatient units, patient reactions to screening can provide essential input. This post hoc analysis examined patient opinions about screening for suicide risk in the medical setting. This analysis includes a subsample of a larger quality improvement project designed to screen medically hospitalized patients for suicide risk. Fifty-three adult medical inpatients at a clinical research hospital provided opinions about suicide risk screening. A qualitative analysis of responses to an opinion question about screening was conducted to identify major themes. Forty-three (81%) patients supported screening medical inpatients for suicide risk. Common themes emphasized asking patients directly about suicide, connection between mental/physical health, and the role of screening in suicide prevention. Adult medical inpatients supported screening for suicide risk on medical/surgical inpatient units. Behavioral health clinicians are uniquely poised to champion suicide detection and intervention in the general medical hospital setting. Patient opinions can be utilized to inform thoughtful implementation of universal suicide risk screening in the medical setting.
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Date Issued
2017-07-01
Identifier
FSU_pmch_27072154, 10.1007/s11414-016-9498-7, PMC5199619, 27072154, 27072154, 10.1007/s11414-016-9498-7
Format
Citation
sequential pathway between trauma-related symptom severity and cognitive-based smoking processes through perceived stress and negative affect reduction expectancies among trauma exposed smokers.
Title
The sequential pathway between trauma-related symptom severity and cognitive-based smoking processes through perceived stress and negative affect reduction expectancies among trauma exposed smokers.
Creator
Garey, Lorra, Cheema, Mina K, Otal, Tanveer K, Schmidt, Norman B, Neighbors, Clayton, Zvolensky, Michael J
Abstract/Description
Smoking rates are markedly higher among trauma-exposed individuals relative to non-trauma-exposed individuals. Extant work suggests that both perceived stress and negative affect reduction smoking expectancies are independent mechanisms that link trauma-related symptoms and smoking. Yet, no work has examined perceived stress and negative affect reduction smoking expectancies as potential explanatory variables for the relation between trauma-related symptom severity and smoking in a sequential...
Show moreSmoking rates are markedly higher among trauma-exposed individuals relative to non-trauma-exposed individuals. Extant work suggests that both perceived stress and negative affect reduction smoking expectancies are independent mechanisms that link trauma-related symptoms and smoking. Yet, no work has examined perceived stress and negative affect reduction smoking expectancies as potential explanatory variables for the relation between trauma-related symptom severity and smoking in a sequential pathway model. Methods The present study utilized a sample of treatment-seeking, trauma-exposed smokers (n = 363; 49.0% female) to examine perceived stress and negative affect reduction expectancies for smoking as potential sequential explanatory variables linking trauma-related symptom severity and nicotine dependence, perceived barriers to smoking cessation, and severity of withdrawal-related problems and symptoms during past quit attempts. As hypothesized, perceived stress and negative affect reduction expectancies had a significant sequential indirect effect on trauma-related symptom severity and criterion variables. Findings further elucidate the complex pathways through which trauma-related symptoms contribute to smoking behavior and cognitions, and highlight the importance of addressing perceived stress and negative affect reduction expectancies in smoking cessation programs among trauma-exposed individuals. (Am J Addict 2016;25:565-572).
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Date Issued
2016-10-01
Identifier
FSU_pmch_27658236, 10.1111/ajad.12442, PMC5531681, 27658236, 27658236
Format
Citation
Insomnia and suicide-related behaviors
Title
Insomnia and suicide-related behaviors: A multi-study investigation of thwarted belongingness as a distinct explanatory factor..
Creator
Chu, Carol, Hom, Melanie A, Rogers, Megan L, Stanley, Ian H, Ringer-Moberg, Fallon B, Podlogar, Matthew C, Hirsch, Jameson K, Joiner, Thomas E
Abstract/Description
Insomnia is a robust correlate of suicidal ideation and behavior. Preliminary research has identified thwarted belongingness (c.f. social disconnection) as an explanatory link between insomnia and suicidal ideation. This study replicates and extends previous findings using both cross-sectional and longitudinal designs in four demographically diverse samples. Additionally, the specificity of thwarted belongingness was evaluated by testing anxiety as a rival mediator. Self-report measures of...
Show moreInsomnia is a robust correlate of suicidal ideation and behavior. Preliminary research has identified thwarted belongingness (c.f. social disconnection) as an explanatory link between insomnia and suicidal ideation. This study replicates and extends previous findings using both cross-sectional and longitudinal designs in four demographically diverse samples. Additionally, the specificity of thwarted belongingness was evaluated by testing anxiety as a rival mediator. Self-report measures of insomnia symptoms, thwarted belongingness, suicidal ideation and behavior, and anxiety were administered in four adult samples: 469 undergraduate students, 352 psychiatric outpatients, 858 firefighters, and 217 primary care patients. More severe insomnia was associated with more severe thwarted belongingness and suicidality. Thwarted belongingness significantly accounted for the association between insomnia and suicidality, cross-sectionally and longitudinally, beyond anxiety. Notably, findings supported the specificity of thwarted belongingness: anxiety did not significantly mediate the association between insomnia and suicidality, and insomnia did not mediate the relation between thwarted belongingness and suicidality. This study relied solely on self-report measures. Future studies incorporating objective sleep measurements are needed. Findings underscore the utility of assessing and addressing sleep disturbances and social disconnection to reduce suicide risk.
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Date Issued
2017-01-15
Identifier
FSU_pmch_27770645, 10.1016/j.jad.2016.08.065, PMC5154904, 27770645, 27770645, S0165-0327(16)31130-2
Format
Citation
Age-related changes of gene expression in the neocortex
Title
Age-related changes of gene expression in the neocortex: preliminary data on RNA-Seq of the transcriptome in three functionally distinct cortical areas..
Creator
Naumova, Oksana Yu, Palejev, Dean, Vlasova, Natalia V, Lee, Maria, Rychkov, Sergei Yu, Babich, Olga N, M Vaccarino, Flora, Grigorenko, Elena L
Abstract/Description
The study of gene expression (i.e., the study of the transcriptome) in different cells and tissues allows us to understand the molecular mechanisms of their differentiation, development and functioning. In this article, we describe some studies of gene-expression profiling for the purposes of understanding developmental (age-related) changes in the brain using different technologies (e.g., DNA-Microarray) and the new and increasingly popular RNA-Seq. We focus on advancements in studies of...
Show moreThe study of gene expression (i.e., the study of the transcriptome) in different cells and tissues allows us to understand the molecular mechanisms of their differentiation, development and functioning. In this article, we describe some studies of gene-expression profiling for the purposes of understanding developmental (age-related) changes in the brain using different technologies (e.g., DNA-Microarray) and the new and increasingly popular RNA-Seq. We focus on advancements in studies of gene expression in the human brain, which have provided data on the structure and age-related variability of the transcriptome in the brain. We present data on RNA-Seq of the transcriptome in three distinct areas of the neocortex from different ages: mature and elderly individuals. We report that most age-related transcriptional changes affect cellular signaling systems, and, as a result, the transmission of nerve impulses. In general, the results demonstrate the high potential of RNA-Seq for the study of distinctive features of gene expression among cortical areas and the changes in expression through normal and atypical development of the central nervous system.
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Date Issued
2012-11-01
Identifier
FSU_pmch_23062308, 10.1017/S0954579412000818, PMC3539811, 23062308, 23062308, S0954579412000818
Format
Citation
Tensile biomechanical properties of human temporomandibular joint disc
Title
Tensile biomechanical properties of human temporomandibular joint disc: Effects of direction, region and sex..
Creator
Wright, Gregory J, Coombs, Matthew C, Hepfer, R Glenn, Damon, Brooke J, Bacro, Thierry H, Lecholop, Michael K, Slate, Elizabeth H, Yao, Hai
Abstract/Description
Approximately 30% of temporomandibular joint (TMJ) disorders include degenerative changes to the articular disc, with sex-specific differences in prevalence and severity. Limited tensile biomechanical properties of human TMJ discs have been reported. Stress relaxation tests were conducted on TMJ disc specimens harvested bilaterally from six males and six females (68.9±7.9 years), with step-strain increments of 5%, 10%, 15%, 20% and 30%, at 1% strain-per-second. Stress versus strain plots were...
Show moreApproximately 30% of temporomandibular joint (TMJ) disorders include degenerative changes to the articular disc, with sex-specific differences in prevalence and severity. Limited tensile biomechanical properties of human TMJ discs have been reported. Stress relaxation tests were conducted on TMJ disc specimens harvested bilaterally from six males and six females (68.9±7.9 years), with step-strain increments of 5%, 10%, 15%, 20% and 30%, at 1% strain-per-second. Stress versus strain plots were constructed, and Young׳s Modulus, Instantaneous Modulus and Relaxed Modulus were determined. The effects of direction, region, and sex were examined. Regional effects were significant (p<0.01) for Young׳s Modulus and Instantaneous Modulus. Anteroposteriorly, the central region was significantly stiffer than medial and lateral regions. Mediolaterally, the posterior region was significantly stiffer than central and anterior regions. In the central region, anteroposteriorly directed specimens were significantly stiffer compared to mediolateral specimens (p<0.04). TMJ disc stiffness, indicated by Young׳s Modulus and Instantaneous Modulus, was higher in directions corresponding to high fiber alignment. Additionally, human TMJ discs were stiffer for females compared to males, with higher Young׳s Modulus and Instantaneous Modulus, and female TMJ discs relaxed less. However, sex effects were not statistically significant. Using second-harmonic generation microscopy, regional collagen fiber organization was identified as a potentially significant factor in determining the biomechanical properties for any combination of direction and region. These findings establish structure-function relationships between collagen fiber direction and organization with biomechanical response to tensile loading, and may provide insights into the prevalence of TMJ disorders among women.
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Date Issued
2016-12-08
Identifier
FSU_pmch_27743627, 10.1016/j.jbiomech.2016.09.033, PMC5164967, 27743627, 27743627, S0021-9290(16)31040-5
Format
Citation
Genome-Wide Association and Exome Sequencing Study of Language Disorder in an Isolated Population.
Title
Genome-Wide Association and Exome Sequencing Study of Language Disorder in an Isolated Population.
Creator
Kornilov, Sergey A, Rakhlin, Natalia, Koposov, Roman, Lee, Maria, Yrigollen, Carolyn, Caglayan, Ahmet Okay, Magnuson, James S, Mane, Shrikant, Chang, Joseph T, Grigorenko, Elena L
Abstract/Description
Developmental language disorder (DLD) is a highly prevalent neurodevelopmental disorder associated with negative outcomes in different domains; the etiology of DLD is unknown. To investigate the genetic underpinnings of DLD, we performed genome-wide association and whole exome sequencing studies in a geographically isolated population with a substantially elevated prevalence of the disorder (ie, the AZ sample). DNA samples were collected from 359 individuals for the genome-wide association...
Show moreDevelopmental language disorder (DLD) is a highly prevalent neurodevelopmental disorder associated with negative outcomes in different domains; the etiology of DLD is unknown. To investigate the genetic underpinnings of DLD, we performed genome-wide association and whole exome sequencing studies in a geographically isolated population with a substantially elevated prevalence of the disorder (ie, the AZ sample). DNA samples were collected from 359 individuals for the genome-wide association study and from 12 severely affected individuals for whole exome sequencing. Multifaceted phenotypes, representing major domains of expressive language functioning, were derived from collected speech samples. Gene-based analyses revealed a significant association between SETBP1 and complexity of linguistic output (P = 5.47 × 10(-7)). The analysis of exome variants revealed coding sequence variants in 14 genes, most of which play a role in neural development. Targeted enrichment analysis implicated myocyte enhancer factor-2 (MEF2)-regulated genes in DLD in the AZ population. The main findings were successfully replicated in an independent cohort of children at risk for related disorders (n = 372). MEF2-regulated pathways were identified as potential candidate pathways in the etiology of DLD. Several genes (including the candidate SETBP1 and other MEF2-related genes) seem to jointly influence certain, but not all, facets of the DLD phenotype. Even when genetic and environmental diversity is reduced, DLD is best conceptualized as etiologically complex. Future research should establish whether the signals detected in the AZ population can be replicated in other samples and languages and provide further characterization of the identified pathway.
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Date Issued
2016-04-01
Identifier
FSU_pmch_27016271, 10.1542/peds.2015-2469, PMC4811310, 27016271, 27016271, peds.2015-2469
Format
Citation
Lexical decision as an endophenotype for reading comprehension
Title
Lexical decision as an endophenotype for reading comprehension: an exploration of an association..
Creator
Naples, Adam, Katz, Len, Grigorenko, Elena L
Abstract/Description
Based on numerous suggestions in the literature, we evaluated lexical decision (LD) as a putative endophenotype for reading comprehension by investigating heritability estimates and segregation analyses parameter estimates for both of these phenotypes. Specifically, in a segregation analysis of a large sample of families, we established that there is little to no overlap between genes contributing to LD and reading comprehension and that the genetic mechanism behind LD derived from this...
Show moreBased on numerous suggestions in the literature, we evaluated lexical decision (LD) as a putative endophenotype for reading comprehension by investigating heritability estimates and segregation analyses parameter estimates for both of these phenotypes. Specifically, in a segregation analysis of a large sample of families, we established that there is little to no overlap between genes contributing to LD and reading comprehension and that the genetic mechanism behind LD derived from this analysis appears to be more complex than that for reading comprehension. We conclude that in our sample, LD is not a good candidate as an endophenotype for reading comprehension, despite previous suggestions from the literature. Based on this conclusion, we discuss the role and benefit of the endophenotype approach in studies of complex human cognitive functions.
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Date Issued
2012-11-01
Identifier
FSU_pmch_23062302, 10.1017/S0954579412000752, PMC3541527, 23062302, 23062302, S0954579412000752
Format
Citation
Remote Health Monitoring for Older Adults and Those with Heart Failure
Title
Remote Health Monitoring for Older Adults and Those with Heart Failure: Adherence and System Usability..
Creator
Evans, Jarrett, Papadopoulos, Amy, Silvers, Christine Tsien, Charness, Neil, Boot, Walter R, Schlachta-Fairchild, Loretta, Crump, Cindy, Martinez, Michele, Ent, Carrie Beth
Abstract/Description
Remote health monitoring technology has been suggested as part of an early intervention and prevention care model. Older adults with a chronic health condition have been shown to benefit from remote monitoring but often have challenges with complex technology. The current study reports on the usability of and adherence with an integrated, real-time monitoring system over an extended period of time by older adults with and without a chronic health condition. Older adults 55 years of age and...
Show moreRemote health monitoring technology has been suggested as part of an early intervention and prevention care model. Older adults with a chronic health condition have been shown to benefit from remote monitoring but often have challenges with complex technology. The current study reports on the usability of and adherence with an integrated, real-time monitoring system over an extended period of time by older adults with and without a chronic health condition. Older adults 55 years of age and over with and without heart failure participated in a study in which a telehealth system was used for 6 months each. The system consisted of a wireless wristwatch-based monitoring device that continuously collected temperature and motion data. Other health information was collected daily using a weight scale, blood pressure cuff, and tablet that participants used for health surveys. Data were automatically analyzed and summarized by the system and presented to study nurses. Forty-one older adults participated. Seventy-one percent of surveys, 75% of blood pressure readings, and 81% of daily weight measurements were taken. Participants wore the watch monitor 77% of the overall 24/7 time requested. The weight scale had the highest usability rating in both groups. The groups did not otherwise differ on device usage. The findings indicate that a health monitoring system designed for older adults can and will be used for an extended period of time and may help older adults with chronic conditions reside longer in their own homes in partnership with the healthcare system.
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Date Issued
2016-06-01
Identifier
FSU_pmch_26540369, 10.1089/tmj.2015.0140, PMC4892222, 26540369, 26540369
Format
Citation
Association between Sleep Disturbances and Depression among Firefighters
Title
The Association between Sleep Disturbances and Depression among Firefighters: Emotion Dysregulation as an Explanatory Factor..
Creator
Hom, Melanie A, Stanley, Ian H, Rogers, Megan L, Tzoneva, Mirela, Bernert, Rebecca A, Joiner, Thomas E
Abstract/Description
To investigate emotion regulation difficulties in association with self-reported insomnia symptoms, nightmares, and depression symptoms in a sample of current and retired firefighters. A total of 880 current and retired United States firefighters completed a web-based survey of firefighter behavioral health. Self-report measures included the Center for Epidemiologic Studies Depression Scale, Insomnia Severity Index, PTSD Checklist, and Difficulties in Emotion Regulation Scale. A notable...
Show moreTo investigate emotion regulation difficulties in association with self-reported insomnia symptoms, nightmares, and depression symptoms in a sample of current and retired firefighters. A total of 880 current and retired United States firefighters completed a web-based survey of firefighter behavioral health. Self-report measures included the Center for Epidemiologic Studies Depression Scale, Insomnia Severity Index, PTSD Checklist, and Difficulties in Emotion Regulation Scale. A notable portion of participants reported clinically significant depression symptoms (39.6%) and insomnia symptoms (52.7%), as well as nightmare problems (19.2%), each of which demonstrated a strong association with emotion regulation difficulties (rs = 0.56-0.80). Bootstrapped mediation analyses revealed that the indirect effects of overall emotion regulation difficulties were significant both for the relationship between insomnia and depression (95% CI: 0.385-0.566) and nightmares and depression (95% CI: 1.445-2.365). Limited access to emotion regulation strategies emerged as the strongest, significant indirect effect for both relationships (insomnia 95% CI: 0.136-0.335; nightmares 95% CI: 0.887-1.931). Findings extend previous affective neuroscience research by providing evidence that insomnia and nightmares may influence depression symptoms specifically through the pathway of explicit emotion regulation difficulties. Sleep disturbances may impair the ability to access and leverage emotion regulation strategies effectively, thus conferring risk for negative affect and depression.
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Date Issued
2016-02-01
Identifier
FSU_pmch_26350604, 10.5664/jcsm.5492, PMC4751428, 26350604, 26350604, jc-00300-15
Format
Citation
Is childhood trauma associated with lifetime suicide attempts in women with bulimia nervosa?
Title
Is childhood trauma associated with lifetime suicide attempts in women with bulimia nervosa?.
Creator
Smith, Christina E, Pisetsky, Emily M, Wonderlich, Stephen A, Crosby, Ross D, Mitchell, James E, Joiner, Thomas E, Bardone-Cone, Anna, Le Grange, Daniel, Klein, Marjorie H, Crow...
Show moreSmith, Christina E, Pisetsky, Emily M, Wonderlich, Stephen A, Crosby, Ross D, Mitchell, James E, Joiner, Thomas E, Bardone-Cone, Anna, Le Grange, Daniel, Klein, Marjorie H, Crow, Scott J, Peterson, Carol B
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Abstract/Description
The purpose of this study was to explore the association between specific forms of childhood abuse and neglect with lifetime suicide attempts in women with bulimia nervosa (BN). Two hundred and four women aged 18-65 (mean 25.6 years, SD 9.13) with full or subclinical BN were recruited in five US Midwestern communities and specialized eating disorder clinics. Participants completed questionnaires including the Childhood Trauma Questionnaire (CTQ) and self-reported whether they had ever had a...
Show moreThe purpose of this study was to explore the association between specific forms of childhood abuse and neglect with lifetime suicide attempts in women with bulimia nervosa (BN). Two hundred and four women aged 18-65 (mean 25.6 years, SD 9.13) with full or subclinical BN were recruited in five US Midwestern communities and specialized eating disorder clinics. Participants completed questionnaires including the Childhood Trauma Questionnaire (CTQ) and self-reported whether they had ever had a lifetime suicide attempt. Logistic regression analyses were used to predict lifetime suicide attempts from each subscale of the CTQ. Childhood emotional, physical, and sexual abuse were significantly associated with the presence of a lifetime suicide attempt in women with BN. Childhood emotional and physical neglect were not associated with suicide attempts. Individuals with BN who have experienced childhood emotional and sexual abuse are at increased risk of a lifetime suicide attempt. Future research is needed to understand the mechanism to address in treatment and prevention efforts. It is important for clinicians to be aware of the potential increased risk of suicide in individuals with BN with a history of childhood abuse.
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Date Issued
2016-06-01
Identifier
FSU_pmch_26462683, 10.1007/s40519-015-0226-8, PMC4833682, 26462683, 26462683, 10.1007/s40519-015-0226-8
Format
Citation
Comparison of health utility weights among elderly patients receiving breast-conserving surgery plus hormonal therapy with or without radiotherapy.
Title
Comparison of health utility weights among elderly patients receiving breast-conserving surgery plus hormonal therapy with or without radiotherapy.
Creator
Ali, Askal Ayalew, Xiao, Hong, Tawk, Rima, Campbell, Ellen, Semykina, Anastasia, Montero, Alberto J, Diaby, Vakaramoko
Abstract/Description
The selection of the most appropriate treatment combinations requires the balancing of benefits and harms of these treatment options as well as the patients' preferences for the resulting outcomes. This research aimed at estimating and comparing the utility weights between elderly women with early stage hormone receptor positive (HR+) breast cancer receiving a combination of radiotherapy and hormonal therapy after breast conserving surgery (BCS) and those receiving a combination of BCS and...
Show moreThe selection of the most appropriate treatment combinations requires the balancing of benefits and harms of these treatment options as well as the patients' preferences for the resulting outcomes. This research aimed at estimating and comparing the utility weights between elderly women with early stage hormone receptor positive (HR+) breast cancer receiving a combination of radiotherapy and hormonal therapy after breast conserving surgery (BCS) and those receiving a combination of BCS and hormonal therapy. The Surveillance, Epidemiology, and End Results (SEER) linked with Medicare Health Outcomes Survey (MHOS) was used as the data source. Health utility weights were derived from the VR-12 health-related quality of life instrument using a mapping algorithm. Descriptive statistics of the sample were provided. Two sample t-tests were performed to determine potential differences in mean health utility weights between the two groups after propensity score matching. The average age at diagnosis was 72 vs. 76 years for the treated and the untreated groups, respectively. The results showed an inverse relationship between the receipt of radiotherapy and age. Patients who received radiotherapy had, on average, a higher health utility weight (0.70; SD = 0.123) compared with those who did not receive radiotherapy (0.676; SD = 0.130). Only treated patients who had more than two comorbid conditions had significantly higher health utility weights compared with patients who were not treated. The mean health utility weights estimated for the radiotherapy and no radiotherapy groups can be used to inform a comparative cost-effectiveness analysis of the treatment options. However, the results of this study may not be generalizable to those who are outside a managed care plan because MHOS data is collected on managed care beneficiaries.
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Date Issued
2017-02-01
Identifier
FSU_pmch_27819160, 10.1080/03007995.2016.1257983, PMC5344798, 27819160, 27819160
Format
Citation
Integrative Comparison of mRNA Expression Patterns in Breast Cancers from Caucasian and Asian Americans with Implications for Precision Medicine.
Title
Integrative Comparison of mRNA Expression Patterns in Breast Cancers from Caucasian and Asian Americans with Implications for Precision Medicine.
Creator
Shi, Yanxia, Steppi, Albert, Cao, Ye, Wang, Jianan, He, Max M, Li, Liren, Zhang, Jinfeng
Abstract/Description
Asian Americans (AS) have significantly lower incidence and mortality rates of breast cancer than Caucasian Americans (CA). Although this racial disparity has been documented, the underlying pathogenetic factors explaining it are obscure. We addressed this issue by an integrative genomics approach to compare mRNA expression between AS and CA cases of breast cancer. RNA-seq data from the Cancer Genome Atlas showed that mRNA expression revealed significant differences at gene and pathway levels...
Show moreAsian Americans (AS) have significantly lower incidence and mortality rates of breast cancer than Caucasian Americans (CA). Although this racial disparity has been documented, the underlying pathogenetic factors explaining it are obscure. We addressed this issue by an integrative genomics approach to compare mRNA expression between AS and CA cases of breast cancer. RNA-seq data from the Cancer Genome Atlas showed that mRNA expression revealed significant differences at gene and pathway levels. Increased susceptibility and severity in CA patients were likely the result of synergistic environmental and genetic risk factors, with arachidonic acid metabolism and PPAR signaling pathways implicated in linking environmental and genetic factors. An analysis that also added eQTL data from the Genotype-Tissue Expression Project and SNP data from the 1,000 Genomes Project identified several SNPs associated with differentially expressed genes. Overall, the associations we identified may enable a more focused study of genotypic differences that may help explain the disparity in breast cancer incidence and mortality rates in CA and AS populations and inform precision medicine. Cancer Res; 77(2); 423-33. ©2016 AACR.
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Date Issued
2017-01-15
Identifier
FSU_pmch_28069798, 10.1158/0008-5472.CAN-16-1959, PMC5243181, 28069798, 28069798
Format
Citation
Assessing Vowel Centralization in Dysarthria
Title
Assessing Vowel Centralization in Dysarthria: A Comparison of Methods..
Creator
Fletcher, Annalise R, McAuliffe, Megan J, Lansford, Kaitlin L, Liss, Julie M
Abstract/Description
The strength of the relationship between vowel centralization measures and perceptual ratings of dysarthria severity has varied considerably across reports. This article evaluates methods of acoustic-perceptual analysis to determine whether procedural changes can strengthen the association between these measures. Sixty-one speakers (17 healthy individuals and 44 speakers with dysarthria) read a standard passage. To obtain acoustic data, 2 points of formant extraction (midpoint and...
Show moreThe strength of the relationship between vowel centralization measures and perceptual ratings of dysarthria severity has varied considerably across reports. This article evaluates methods of acoustic-perceptual analysis to determine whether procedural changes can strengthen the association between these measures. Sixty-one speakers (17 healthy individuals and 44 speakers with dysarthria) read a standard passage. To obtain acoustic data, 2 points of formant extraction (midpoint and articulatory point) and 2 frequency measures (Hz and Bark) were trialed. Both vowel space area and an adapted formant centralization ratio were calculated using first and second formants of speakers' corner vowels. Twenty-eight listeners rated speech samples using different prompts: one with a focus on intelligibility, the other on speech precision. Perceptually, listener ratings of speech precision provided the best index of acoustic change. Acoustically, the combined use of an articulatory-based formant extraction point, Bark frequency units, and the formant centralization ratio was most effective in explaining perceptual ratings. This combination of procedures resulted in an increase of 17% to 27% explained variance between measures. The procedures researchers use to assess articulatory impairment can significantly alter the strength of relationship between acoustic and perceptual measures. Procedures that maximize this relationship are recommended.
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Date Issued
2017-02-01
Identifier
FSU_pmch_28124069, 10.1044/2016_JSLHR-S-15-0355, PMC6194930, 28124069, 28124069, 2599995
Format
Citation
Anxiety sensitivity risk reduction in smokers
Title
Anxiety sensitivity risk reduction in smokers: A randomized control trial examining effects on panic..
Creator
Schmidt, Norman B, Raines, Amanda M, Allan, Nicholas P, Zvolensky, Michael J
Abstract/Description
Empirical evidence has identified several risk factors for panic psychopathology, including smoking and anxiety sensitivity (AS; the fear of anxiety-related sensations). Smokers with elevated AS are therefore a particularly vulnerable population for panic. Yet, there is little knowledge about how to reduce risk of panic among high AS smokers. The present study prospectively evaluated panic outcomes within the context of a controlled randomized risk reduction program for smokers. Participants ...
Show moreEmpirical evidence has identified several risk factors for panic psychopathology, including smoking and anxiety sensitivity (AS; the fear of anxiety-related sensations). Smokers with elevated AS are therefore a particularly vulnerable population for panic. Yet, there is little knowledge about how to reduce risk of panic among high AS smokers. The present study prospectively evaluated panic outcomes within the context of a controlled randomized risk reduction program for smokers. Participants (N = 526) included current smokers who all received a state-of-the-art smoking cessation intervention with approximately half randomized to the AS reduction intervention termed Panic-smoking Program (PSP). The primary hypotheses focus on examining the effects of a PSP on panic symptoms in the context of this vulnerable population. Consistent with prediction, there was a significant effect of treatment condition on AS, such that individuals in the PSP condition, compared to those in the control condition, demonstrated greater decreases in AS throughout treatment and the follow-up period. In addition, PSP treatment resulted in lower rates of panic-related symptomatology. Moreover, mediation analyses indicated that reductions in AS resulted in lower panic symptoms. The present study provides the first empirical evidence that brief, targeted psychoeducational interventions can mitigate panic risk among smokers.
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Date Issued
2016-02-01
Identifier
FSU_pmch_26752327, 10.1016/j.brat.2015.12.011, PMC4752863, 26752327, 26752327, S0005-7967(15)30075-9
Format
Citation
Posttraumatic stress symptom severity and cognitive-based smoking processes among trauma-exposed treatment-seeking smokers
Title
Posttraumatic stress symptom severity and cognitive-based smoking processes among trauma-exposed treatment-seeking smokers: The role of perceived stress..
Creator
Garey, Lorra, Bakhshaie, Jafar, Vujanovic, Anka A, Reitzel, Lorraine R, Schmidt, Norman B, Zvolensky, Michael J
Abstract/Description
Trauma exposure and smoking co-occur at an alarmingly high rate. However, there is little understanding of the mechanisms underlying this clinically significant relation. The present study examined perceived stress as an explanatory mechanism linking posttraumatic stress symptom severity and smoking-specific avoidance/inflexibility, perceived barriers to smoking cessation, and negative affect reduction/negative reinforcement expectancies from smoking among trauma-exposed smokers. Participants...
Show moreTrauma exposure and smoking co-occur at an alarmingly high rate. However, there is little understanding of the mechanisms underlying this clinically significant relation. The present study examined perceived stress as an explanatory mechanism linking posttraumatic stress symptom severity and smoking-specific avoidance/inflexibility, perceived barriers to smoking cessation, and negative affect reduction/negative reinforcement expectancies from smoking among trauma-exposed smokers. Participants were trauma-exposed, treatment-seeking daily cigarette smokers (n=179; 48.0% female; Mage=41.17; SD=12.55). Results indicated that posttraumatic stress symptom severity had an indirect significant effect on each of the dependent variables via perceived stress. The present results provide empirical support that perceived stress may be an underlying mechanism that indirectly explains posttraumatic symptoms relation to smoking-specific avoidance/inflexibility, perceived barriers to smoking cessation, and negative affect reduction/negative reinforcement expectancies among trauma-exposed smokers. These findings suggest that there may be clinical utility in targeting perceived stress among trauma-exposed smokers via stress management psychoeducation and skills training.
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Date Issued
2016-09-01
Identifier
FSU_pmch_27100473, 10.1016/j.addbeh.2016.03.038, PMC4884455, 27100473, 27100473, S0306-4603(16)30140-X
Format
Citation
Mediation analysis of relationships between chronic inflammation and quality of life in older adults.
Title
Mediation analysis of relationships between chronic inflammation and quality of life in older adults.
Creator
Nowakowski, Alexandra C H, Graves, Katelyn Y, Sumerau, J E
Abstract/Description
This article summarizes exploratory analyses of relationships between chronic inflammation, its physical consequences, and quality of life (QoL). It summarizes key findings from preliminary analyses, and contextualizes these results with extant sociomedical literature to recommend directions for future research. Cross-sectional data from the National Social Life, Health, and Aging Project (NSHAP) were used to explore these relationships. Inflammation was assessed via the biomarker C-reactive...
Show moreThis article summarizes exploratory analyses of relationships between chronic inflammation, its physical consequences, and quality of life (QoL). It summarizes key findings from preliminary analyses, and contextualizes these results with extant sociomedical literature to recommend directions for future research. Cross-sectional data from the National Social Life, Health, and Aging Project (NSHAP) were used to explore these relationships. Inflammation was assessed via the biomarker C-reactive protein (CRP). We examined associations between CRP levels and two different domains of QoL: happiness with life in general and happiness with intimate relationships. We used ordinal logistic regression with companion OLS models and Sobel-Goodman tests to assess potential mediation, and also conducted a variety of sensitivity analyses. Findings suggest that mediation pathways for the overall association between chronic inflammation and QoL may differ markedly across particular outcome constructs. Specifically, it shows mediation potential for the clinical sequelae of chronic inflammation in frameworks using happiness as an outcome measure, but not in those using relationship satisfaction. Disability appears to mediate the effect of inflammation by 27 %; chronic pain appears to exert a similar mediation effect of 21 %. Pain and disability linked to chronic inflammation appear to play a small but significant mediating role in the overall reduction in QoL observed among older adults with biomarker evidence of chronic inflammation. We note that these patterns are best framed as dynamic elements of a complex causal fabric, rather than powerful determinants that override other factors contributing to QoL. Hypotheses for further exploration using longitudinal data from the NSHAP are thus offered, pending availability of Wave III data in future years.
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Date Issued
2016-03-22
Identifier
FSU_pmch_27001461, 10.1186/s12955-016-0452-4, PMC4802844, 27001461, 27001461, 10.1186/s12955-016-0452-4
Format
Citation
Examining an underlying mechanism between perceived stress and smoking cessation-related outcomes.
Title
Examining an underlying mechanism between perceived stress and smoking cessation-related outcomes.
Creator
Robles, Zuzuky, Garey, Lorra, Hogan, Julianna, Bakhshaie, Jafar, Schmidt, Norman B, Zvolensky, Michael J
Abstract/Description
The mediational role of negative reinforcement smoking outcome expectancies in the relation between perceived stress and (1) perceived barriers to cessation, (2) severity of problematic symptoms during past quit attempts, and (3) smoking-specific experiential avoidance (AIS) was examined. Data were drawn from a baseline assessment of a larger clinical trial. Participants included 332 adult treatment-seeking smokers (47.3% female; Mage=38.45; SD=.50; age range: 18-65 years). Results indicated...
Show moreThe mediational role of negative reinforcement smoking outcome expectancies in the relation between perceived stress and (1) perceived barriers to cessation, (2) severity of problematic symptoms during past quit attempts, and (3) smoking-specific experiential avoidance (AIS) was examined. Data were drawn from a baseline assessment of a larger clinical trial. Participants included 332 adult treatment-seeking smokers (47.3% female; Mage=38.45; SD=.50; age range: 18-65 years). Results indicated that perceived stress was indirectly related to perceived barriers to smoking cessation, severity of problematic symptoms during past quit attempts, and AIS through negative reinforcement outcome expectancies. These results were evident after accounting for the variance explained by gender, negative affectivity, and alternative outcome expectancies for smoking. The present findings suggest that smokers with greater perceived stress experience greater negative reinforcement smoking expectancies, which in turn, may be related to numerous processes involved in the maintenance of smoking.
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Date Issued
2016-07-01
Identifier
FSU_pmch_26946445, 10.1016/j.addbeh.2016.02.022, PMC5531612, 26946445, 26946445, S0306-4603(16)30056-9
Format
Citation
Genetic and cellular studies highlight that A Disintegrin and Metalloproteinase 19 is a protective biomarker in human prostate cancer.
Title
Genetic and cellular studies highlight that A Disintegrin and Metalloproteinase 19 is a protective biomarker in human prostate cancer.
Creator
Hoyne, Gerard, Rudnicka, Caroline, Sang, Qing-Xiang, Roycik, Mark, Howarth, Sarah, Leedman, Peter, Schlaich, Markus, Candy, Patrick, Matthews, Vance
Abstract/Description
Prostate cancer is the second most frequently diagnosed cancer in men worldwide. Current treatments include surgery, androgen ablation and radiation. Introduction of more targeted therapies in prostate cancer, based on a detailed knowledge of the signalling pathways, aims to reduce side effects, leading to better clinical outcomes for the patient. ADAM19 (A Disintegrin And Metalloproteinase 19) is a transmembrane and soluble protein which can regulate cell phenotype through cell adhesion and...
Show moreProstate cancer is the second most frequently diagnosed cancer in men worldwide. Current treatments include surgery, androgen ablation and radiation. Introduction of more targeted therapies in prostate cancer, based on a detailed knowledge of the signalling pathways, aims to reduce side effects, leading to better clinical outcomes for the patient. ADAM19 (A Disintegrin And Metalloproteinase 19) is a transmembrane and soluble protein which can regulate cell phenotype through cell adhesion and proteolysis. ADAM19 has been positively associated with numerous diseases, but has not been shown to be a tumor suppressor in the pathogenesis of any human cancers. Our group sought to investigate the role of ADAM19 in human prostate cancer. ADAM19 mRNA and protein levels were assessed in well characterised human prostate cancer cohorts. ADAM19 expression was assessed in normal prostate epithelial cells (RWPE-1) and prostate cancer cells (LNCaP, PC3) using western blotting and immunocytochemistry. Proliferation assays were conducted in LNCaP cells in which ADAM19 was over-expressed. In vitro scratch assays were performed in PC3 cells over-expressing ADAM19. Immunohistochemical studies highlighted that ADAM19 protein levels were elevated in normal prostate tissue compared to prostate cancer biopsies. Results from the clinical cohorts demonstrated that high levels of ADAM19 in microarrays are positively associated with lower stage (p = 0.02591) and reduced relapse (p = 0.00277) of human prostate cancer. In vitro, ADAM19 expression was higher in RWPE-1 cells compared to LNCaP cells. In addition, human ADAM19 over-expression reduced LNCaP cell proliferation and PC3 cell migration. Taken together, our immunohistochemical and microarray results and cellular studies have shown for the first time that ADAM19 is a protective factor for human prostate cancer. Further, this study suggests that upregulation of ADAM19 expression could be of therapeutic potential in human prostate cancer.
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Date Issued
2016-02-24
Identifier
FSU_pmch_26912236, 10.1186/s12885-016-2178-4, PMC4766641, 26912236, 26912236, 10.1186/s12885-016-2178-4
Format
Citation
Sustained smoking abstinence is associated with reductions in smoking-specific experiential avoidance among treatment-seeking smokers.
Title
Sustained smoking abstinence is associated with reductions in smoking-specific experiential avoidance among treatment-seeking smokers.
Creator
Farris, Samantha G, DiBello, Angelo M, Heggeness, Luke F, Reitzel, Lorraine R, Vidrine, Damon J, Schmidt, Norman B, Zvolensky, Michael J
Abstract/Description
Smoking-specific experiential avoidance is related to the maintenance of cigarette smoking. However, it is unclear whether sustained smoking abstinence is associated with subsequent reductions in smoking-specific experiential avoidance. Daily smokers (n = 149) underwent a cessation attempt in the context of a 4-session smoking cessation treatment trial. Participants provided biochemical verification of smoking status at 1 week, 2 weeks, and 1 Month post-quit day. Smoking-specific experiential...
Show moreSmoking-specific experiential avoidance is related to the maintenance of cigarette smoking. However, it is unclear whether sustained smoking abstinence is associated with subsequent reductions in smoking-specific experiential avoidance. Daily smokers (n = 149) underwent a cessation attempt in the context of a 4-session smoking cessation treatment trial. Participants provided biochemical verification of smoking status at 1 week, 2 weeks, and 1 Month post-quit day. Smoking-specific experiential avoidance was assessed per the Avoidance and Inflexibility Scale (AIS) - the total score and two factor scores were examined at 1 Month post-quit day as a function of abstinence status. Two path models were conducted and included participant sex, treatment condition, and pre-cessation nicotine dependence, smoking-specific experiential avoidance, and presence of emotional disorders as covariates. After adjusting for covariates, sustained smoking abstinence was associated with a reduction in the AIS total score at Month 1 post-quit (β = -.45, p < .001). Sustained smoking abstinence was associated with reductions across both facets of experiential avoidance -- smoking-related thoughts and feelings (β = -.44, p < .001) and internal bodily sensations (β = -.41, p < .001). Biochemical verification of smoking status was confirmed only at three time points post-quit day, and continued abstinence throughout the one-month post-quitting period is not fully known. Sustained smoking abstinence may contribute to reductions in smoking-specific experiential avoidance. Findings add to the research documenting the relevance of experiential avoidance in various processes of smoking (including smoking abstinence).
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Date Issued
2016-06-01
Identifier
FSU_pmch_26773342, 10.1016/j.jbtep.2015.12.003, PMC4755816, 26773342, 26773342, S0005-7916(15)30047-1
Format
Citation
Valuation of active blind spot detection systems by younger and older adults.
Title
Valuation of active blind spot detection systems by younger and older adults.
Creator
Souders, Dustin J, Best, Ryan, Charness, Neil
Abstract/Description
Due to their disproportional representation in fatal crashes, younger and older drivers both stand to benefit from in-vehicle safety technologies, yet little is known about how they value such technologies, or their willingness to adopt them. The current study investigated older (aged 65 and greater; N=49) and younger (ages 18-23; N=40) adults' valuation of a blind spot monitor and asked if self-reported visual difficulties while driving predicted the amount participants were willing to pay...
Show moreDue to their disproportional representation in fatal crashes, younger and older drivers both stand to benefit from in-vehicle safety technologies, yet little is known about how they value such technologies, or their willingness to adopt them. The current study investigated older (aged 65 and greater; N=49) and younger (ages 18-23; N=40) adults' valuation of a blind spot monitor and asked if self-reported visual difficulties while driving predicted the amount participants were willing to pay for a particular system (BMW's Active Blind Spot Detection System) that was demonstrated using a short video. Large and small anchor values ($250 and $500, respectively) were used as between subjects manipulations to examine the effects of initial valuation, and participants proceeded through a short staircase procedure that offered them either the free installation of the system on their current vehicle or a monetary prize ($25-$950) that changed in value according to which option they had selected in the previous step of the staircase procedure. Willingness to use other advanced driver assistance systems (lane-departure warning, automatic lane centering, emergency braking, adaptive cruise control, and self-parking systems) was also analyzed, additionally controlling for prior familiarity of those systems. Results showed that increased age was associated with a higher valuation for the Active Blind Spot Detection System in both the large and small anchor value conditions controlling for income, gender, and technology self-efficacy. Older adults valued blind spot detection about twice as much ($762) as younger adults ($383) in the large anchor condition, though both groups' values were in the range for the current cost of an aftermarket system. Similarly, age was the most robust positive predictor of willingness to adopt other driving technologies, along with system familiarity. Difficulties with driving-related visual factors also positively predicting acceptance levels for adaptive cruise control and emergency braking systems. Results are discussed in comparison to older adults' willingness to pay for other home-based assistive technologies aimed at improving well-being and independence.
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Date Issued
2017-09-01
Identifier
FSU_pmch_27567729, 10.1016/j.aap.2016.08.020, PMC5325821, 27567729, 27567729, S0001-4575(16)30306-2
Format
Citation
Quantile Regression Approach to Understanding the Relations Among Morphological Awareness, Vocabulary, and Reading Comprehension in Adult Basic Education Students.
Title
A Quantile Regression Approach to Understanding the Relations Among Morphological Awareness, Vocabulary, and Reading Comprehension in Adult Basic Education Students.
Creator
Tighe, Elizabeth L, Schatschneider, Christopher
Abstract/Description
The purpose of this study was to investigate the joint and unique contributions of morphological awareness and vocabulary knowledge at five reading comprehension levels in adult basic education (ABE) students. We introduce the statistical technique of multiple quantile regression, which enabled us to assess the predictive utility of morphological awareness and vocabulary knowledge at multiple points (quantiles) along the continuous distribution of reading comprehension. To demonstrate the...
Show moreThe purpose of this study was to investigate the joint and unique contributions of morphological awareness and vocabulary knowledge at five reading comprehension levels in adult basic education (ABE) students. We introduce the statistical technique of multiple quantile regression, which enabled us to assess the predictive utility of morphological awareness and vocabulary knowledge at multiple points (quantiles) along the continuous distribution of reading comprehension. To demonstrate the efficacy of our multiple quantile regression analysis, we compared and contrasted our results with a traditional multiple regression analytic approach. Our results indicated that morphological awareness and vocabulary knowledge accounted for a large portion of the variance (82%-95%) in reading comprehension skills across all quantiles. Morphological awareness exhibited the greatest unique predictive ability at lower levels of reading comprehension whereas vocabulary knowledge exhibited the greatest unique predictive ability at higher levels of reading comprehension. These results indicate the utility of using multiple quantile regression to assess trajectories of component skills across multiple levels of reading comprehension. The implications of our findings for ABE programs are discussed.
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Date Issued
2016-07-01
Identifier
FSU_pmch_25351773, 10.1177/0022219414556771, PMC4558398, 25351773, 25351773, 0022219414556771
Format
Citation
Anxiety sensitivity mediates gender differences in post-concussive symptoms in a clinical sample.
Title
Anxiety sensitivity mediates gender differences in post-concussive symptoms in a clinical sample.
Creator
Albanese, Brian J, Boffa, Joseph W, Macatee, Richard J, Schmidt, Norman B
Abstract/Description
Traumatic brain injury (TBI) is both prevalent and potentially disabling. Extant literature has demonstrated women to report greater post-concussive symptoms (PCS) compared to men, highlighting the necessity of investigations into malleable, gender-linked risk factors for PCS that hold promise for reducing this gender disparity. Anxiety Sensitivity (AS) and Distress Tolerance (DT) are gender-linked risk factors that may be related to PCS. Despite a breadth of research supporting elevated AS...
Show moreTraumatic brain injury (TBI) is both prevalent and potentially disabling. Extant literature has demonstrated women to report greater post-concussive symptoms (PCS) compared to men, highlighting the necessity of investigations into malleable, gender-linked risk factors for PCS that hold promise for reducing this gender disparity. Anxiety Sensitivity (AS) and Distress Tolerance (DT) are gender-linked risk factors that may be related to PCS. Despite a breadth of research supporting elevated AS and reduced DT in women, no study to date has investigated whether AS and DT mediate gender differences in PCS. The current sample was composed of 59 participants selected from a larger study based on their report of a past TBI. Findings indicated that AS, but not DT, significantly mediated gender differences in PCS. The present results suggest that AS is a cognitive risk factor that can partially account for the gender disparity in the expression of PCS. AS may influence an individual's interpretation of PCS as dangerous, thereby amplifying the perception of PCS severity. This suggests that efforts to reduce the burden of TBI may benefit from targeting AS in prevention and treatment paradigms, especially among women.
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Date Issued
2017-06-01
Identifier
FSU_pmch_28285252, 10.1016/j.psychres.2017.01.099, PMC5438889, 28285252, 28285252, S0165-1781(16)30114-7
Format
Citation
role of stressful life events preceding death by suicide
Title
The role of stressful life events preceding death by suicide: Evidence from two samples of suicide decedents..
Creator
Buchman-Schmitt, Jennifer M, Chu, Carol, Michaels, Matthew S, Hames, Jennifer L, Silva, Caroline, Hagan, Christopher R, Ribeiro, Jessica D, Selby, Edward A, Joiner, Thomas E
Abstract/Description
Stressful life events (SLEs) are associated with increased risk for suicidal behavior. Less is known regarding the intensity of SLEs and how this may vary as a function of suicide attempt history. As a large percentage of suicide decedents do not have a history of suicidal behavior, SLEs precipitating suicide may help characterize suicidality in this understudied population. This paper examines the intensity, number, and accumulation of SLEs preceding death by suicide among decedents with...
Show moreStressful life events (SLEs) are associated with increased risk for suicidal behavior. Less is known regarding the intensity of SLEs and how this may vary as a function of suicide attempt history. As a large percentage of suicide decedents do not have a history of suicidal behavior, SLEs precipitating suicide may help characterize suicidality in this understudied population. This paper examines the intensity, number, and accumulation of SLEs preceding death by suicide among decedents with varying suicide attempt histories. Suicide attempts, SLEs, and suicide methods were examined in two samples: 62 prison-based and 117 community-based suicide decedents. Regression was used to compare the level of stressor precipitating death by suicide in decedents who died on a first attempt versus multiple previous attempts. A non-significant trend was observed in the prison population which was supported by significant findings in the community-based sample. Decedents who died on a first attempt experienced a stressor of a lower magnitude when compared to decedents with multiple previous suicide attempts. We discuss the implications of these findings in relation to the stress-diathesis model for suicide.
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Date Issued
2017-10-01
Identifier
FSU_pmch_28675860, 10.1016/j.psychres.2017.06.078, PMC5603385, 28675860, 28675860, S0165-1781(16)32026-1
Format
Citation
Do Undiagnosed Suicide Decedents Have Symptoms of a Mental Disorder?
Title
Do Undiagnosed Suicide Decedents Have Symptoms of a Mental Disorder?.
Creator
Joiner, Thomas E, Buchman-Schmitt, Jennifer M, Chu, Carol
Abstract/Description
Psychological autopsy studies consistently report that the rate of detected mental disorders among suicide decedents is below 100%. This implies three possibilities: (a) a subset of suicide decedents did not have a mental disorder at the time of death; (b) all suicide decedents suffered from a mental disorder, but some were undetected due to methodological limitations; and/or (c) suicide decedents with an undetected mental disorder displayed significant and perhaps subclinical features of a...
Show morePsychological autopsy studies consistently report that the rate of detected mental disorders among suicide decedents is below 100%. This implies three possibilities: (a) a subset of suicide decedents did not have a mental disorder at the time of death; (b) all suicide decedents suffered from a mental disorder, but some were undetected due to methodological limitations; and/or (c) suicide decedents with an undetected mental disorder displayed significant and perhaps subclinical features of a mental disorder. In this article, we examined these possibilities by evaluating the differences in symptoms and stressors between suicide decedents who were undiagnosed and those diagnosed with a mental disorder at the time of death. We reviewed 130 case studies of community-based suicide decedents originally described in Robins' (1981) psychological autopsy study. Without exception, suicide decedents in Robins' sample suffered either from a clearly diagnosable mental disorder or displayed features indicative of a significant, even if subclinical, presentation of a mental disorder. Undiagnosed and diagnosed suicide decedents did not significantly differ with regards to demographics, violence of suicide method, suicide attempt history, the number and intensity of stressful life events preceding death, and whether their death was a murder-suicide. Although clearly not all who suffer from mental disorders will die by suicide, these findings imply that all who die by suicide appear to exhibit, at minimum, subclinical psychiatric symptoms with the great majority showing prominent clinical symptoms. We conclude with clinical implications and recommendations for future study.
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Date Issued
2017-12-01
Identifier
FSU_pmch_28685838, 10.1002/jclp.22498, PMC5690847, 28685838, 28685838
Format
Citation
Predicting Intelligibility Gains in Individuals With Dysarthria From Baseline Speech Features.
Title
Predicting Intelligibility Gains in Individuals With Dysarthria From Baseline Speech Features.
Creator
Fletcher, Annalise R, McAuliffe, Megan J, Lansford, Kaitlin L, Sinex, Donal G, Liss, Julie M
Abstract/Description
Across the treatment literature, behavioral speech modifications have produced variable intelligibility changes in speakers with dysarthria. This study is the first of two articles exploring whether measurements of baseline speech features can predict speakers' responses to these modifications. Fifty speakers (7 older individuals and 43 speakers with dysarthria) read a standard passage in habitual, loud, and slow speaking modes. Eighteen listeners rated how easy the speech samples were to...
Show moreAcross the treatment literature, behavioral speech modifications have produced variable intelligibility changes in speakers with dysarthria. This study is the first of two articles exploring whether measurements of baseline speech features can predict speakers' responses to these modifications. Fifty speakers (7 older individuals and 43 speakers with dysarthria) read a standard passage in habitual, loud, and slow speaking modes. Eighteen listeners rated how easy the speech samples were to understand. Baseline acoustic measurements of articulation, prosody, and voice quality were collected with perceptual measures of severity. Cues to speak louder and reduce rate did not confer intelligibility benefits to every speaker. The degree to which cues to speak louder improved intelligibility could be predicted by speakers' baseline articulation rates and overall dysarthria severity. Improvements in the slow condition could be predicted by speakers' baseline severity and temporal variability. Speakers with a breathier voice quality tended to perform better in the loud condition than in the slow condition. Assessments of baseline speech features can be used to predict appropriate treatment strategies for speakers with dysarthria. Further development of these assessments could provide the basis for more individualized treatment programs.
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Date Issued
2017-11-09
Identifier
FSU_pmch_29075753, 10.1044/2016_JSLHR-S-16-0218, PMC6195071, 29075753, 29075753, 2661025
Format
Citation
Predicting Intelligibility Gains in Dysarthria Through Automated Speech Feature Analysis.
Title
Predicting Intelligibility Gains in Dysarthria Through Automated Speech Feature Analysis.
Creator
Fletcher, Annalise R, Wisler, Alan A, McAuliffe, Megan J, Lansford, Kaitlin L, Liss, Julie M
Abstract/Description
Behavioral speech modifications have variable effects on the intelligibility of speakers with dysarthria. In the companion article, a significant relationship was found between measures of speakers' baseline speech and their intelligibility gains following cues to speak louder and reduce rate (Fletcher, McAuliffe, Lansford, Sinex, & Liss, 2017). This study reexamines these features and assesses whether automated acoustic assessments can also be used to predict intelligibility gains. Fifty...
Show moreBehavioral speech modifications have variable effects on the intelligibility of speakers with dysarthria. In the companion article, a significant relationship was found between measures of speakers' baseline speech and their intelligibility gains following cues to speak louder and reduce rate (Fletcher, McAuliffe, Lansford, Sinex, & Liss, 2017). This study reexamines these features and assesses whether automated acoustic assessments can also be used to predict intelligibility gains. Fifty speakers (7 older individuals and 43 with dysarthria) read a passage in habitual, loud, and slow speaking modes. Automated measurements of long-term average spectra, envelope modulation spectra, and Mel-frequency cepstral coefficients were extracted from short segments of participants' baseline speech. Intelligibility gains were statistically modeled, and the predictive power of the baseline speech measures was assessed using cross-validation. Statistical models could predict the intelligibility gains of speakers they had not been trained on. The automated acoustic features were better able to predict speakers' improvement in the loud condition than the manual measures reported in the companion article. These acoustic analyses present a promising tool for rapidly assessing treatment options. Automated measures of baseline speech patterns may enable more selective inclusion criteria and stronger group outcomes within treatment studies.
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Date Issued
2017-11-09
Identifier
FSU_pmch_29075755, 10.1044/2017_JSLHR-S-16-0453, PMC6195072, 29075755, 29075755, 2661026
Format
Citation
Self-management of cardiac pain in women
Title
Self-management of cardiac pain in women: an evidence map..
Creator
Parry, Monica, Bjørnnes, Ann Kristin, Clarke, Hance, Cooper, Lynn, Gordon, Allan, Harvey, Paula, Lalloo, Chitra, Leegaard, Marit, LeFort, Sandra, McFetridge-Durdle, Judith,...
Show moreParry, Monica, Bjørnnes, Ann Kristin, Clarke, Hance, Cooper, Lynn, Gordon, Allan, Harvey, Paula, Lalloo, Chitra, Leegaard, Marit, LeFort, Sandra, McFetridge-Durdle, Judith, McGillion, Michael, O'Keefe-McCarthy, Sheila, Price, Jennifer, Stinson, Jennifer, Victor, J Charles, Watt-Watson, Judy
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Abstract/Description
To describe the current evidence related to the self-management of cardiac pain in women using the process and methodology of evidence mapping. Literature search for studies that describe the self-management of cardiac pain in women greater than 18 years of age, managed in community, primary care or outpatient settings, published in English or a Scandinavian language between 1 January 1990 and 24 June 2016 using AMED, CINAHL, ERIC, EMBASE, MEDLINE, Proquest, PsychInfo, the Cochrane Library,...
Show moreTo describe the current evidence related to the self-management of cardiac pain in women using the process and methodology of evidence mapping. Literature search for studies that describe the self-management of cardiac pain in women greater than 18 years of age, managed in community, primary care or outpatient settings, published in English or a Scandinavian language between 1 January 1990 and 24 June 2016 using AMED, CINAHL, ERIC, EMBASE, MEDLINE, Proquest, PsychInfo, the Cochrane Library, Scopus, Swemed+, Web of Science, the Clinical Trials Registry, International Register of Controlled Trials, MetaRegister of Controlled Trials, theses and dissertations, published conference abstracts and relevant websites using GreyNet International, ISI proceedings, BIOSIS and Conference papers index. Two independent reviewers screened using predefined eligibility criteria. Included articles were classified according to study design, pain category, publication year, sample size, per cent women and mean age. Self-management interventions for cardiac pain or non-intervention studies that described views and perspectives of women who self-managed cardiac pain. Outcomes included those related to knowledge, self-efficacy, function and health-related quality of life. The literature search identified 5940 unique articles, of which 220 were included in the evidence map. Only 22% (n=49) were intervention studies. Sixty-nine per cent (n=151) of the studies described cardiac pain related to obstructive coronary artery disease (CAD), 2% (n=5) non-obstructive CAD and 15% (n=34) postpercutaneous coronary intervention/cardiac surgery. Most were published after 2000, the median sample size was 90 with 25%-100% women and the mean age was 63 years. Our evidence map suggests that while much is known about the differing presentations of obstructive cardiac pain in middle-aged women, little research focused on young and old women, non-obstructive cardiac pain or self-management interventions to assist women to manage cardiac pain. CRD42016042806.
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Date Issued
2017-11-25
Identifier
FSU_pmch_29175891, 10.1136/bmjopen-2017-018549, PMC5719283, 29175891, 29175891, bmjopen-2017-018549
Format
Citation