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1.
BMC Womens Health ; 21(1): 55, 2021 02 08.
Artigo em Inglês | MEDLINE | ID: mdl-33557798

RESUMO

BACKGROUND: This study focuses on factors that may disproportionately affect female veterans' mental health, compared to men, and is part of a larger study assessing the prevalence of mental health disorders and treatment seeking among formerly deployed US military service members. METHODS: We surveyed a random sample of 1,730 veterans who were patients in a large non-VA hospital system in the US. Based on previous research, women were hypothesized to be at higher risk for psychological problems. We adjusted our results for confounding factors, including history of trauma, childhood abuse, combat exposure, deployments, stressful life events, alcohol misuse, psychological resources, and social support. RESULTS: Among the veterans studied, 5% were female (n = 85), 96% were White (n = 1,161), 22.9% were Iraq/Afghanistan veterans (n = 398), and the mean age was 59 years old (SD = 12). Compared to males, female veterans were younger, unmarried, college graduates, had less combat exposure, but were more likely to have lifetime PTSD (29% vs. 12%.), depression (46% vs. 21%), suicidal ideation (27% vs. 11%), and lifetime mental health service use (67% vs. 47%). Females were also more likely to have low psychological resilience and to have used psychotropic medications in the past year. Using multivariate logistic regression analyses that controlled for risk and protective factors, female veterans had greater risk for lifetime PTSD, depression, suicidal thoughts, and for lifetime use of psychological services, compared to males. Since 95% of the population in this study were male and these results may have been statistically biased, we reran our analyses using propensity score matching. Results were consistent across these analyses. CONCLUSION: Using a sample of post-deployment veterans receiving healthcare services from a large non-VA health system, we find that female veterans are at greater risk for lifetime psychological problems, compared to male veterans. We discuss these findings and their implications for service providers.


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Afeganistão , Criança , Feminino , Humanos , Iraque , Guerra do Iraque 2003-2011 , Masculino , Saúde Mental , Pessoa de Meia-Idade , Fatores de Proteção , Fatores de Risco , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Ideação Suicida , Estados Unidos/epidemiologia
3.
Artigo em Inglês | MEDLINE | ID: mdl-31285710

RESUMO

Post-traumatic stress disorder (PTSD) is related to alteration in neuropsychological functioning, including visual and other cognitive processes. Grapheme-color synesthesia is a phenomenon in which a letter or number elicits response of a concurrent image or color perception. Since we earlier reported an association between grapheme-color synesthesia and PTSD, our objective in the current study was to validate this association among a new study group and assess risk factors. For this, we surveyed 1,730 military veterans who have been outpatients in the Geisinger Clinic, a multi-hospital system in Pennsylvania, USA. All the study veterans served in a warzone deployment. The association between PTSD and Grapheme-color synesthesia was evaluated. The average age of veterans was 59.6 years among whom 95.1% were male. Current PTSD prevalence rate was observed to be 7.6% (95% C.I. = 6.5-9.0) and in 3.4% of veterans (95% C.I. = 2.7-4.4) grapheme-color synesthesia was found to be positive. Initial bivariate analyses suggested that synesthesia was associated with current PTSD [odds ratio (OR) = 3.3, p<0.001]. Multivariable stepwise logistic regression evaluating the age, sex, education, trauma exposure, current psychological stress, psychotropic medication use, combat exposure, history of concussion, and current depression, confirmed this association (OR = 2.33, p = 0.019). The present study corroborated that Grapheme-color synesthesia was linked to PTSD among a second cohort of deployed military veterans. Further research is recommended in order to validate this observation and to determine whether synesthesia is a risk factor for PTSD.

4.
J Nerv Ment Dis ; 206(10): 757-764, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30273271

RESUMO

We examined the effects of homecoming support on current mental health among 1730 deployed veterans from Vietnam, Iraq/Afghanistan, Persian Gulf, and other conflicts. The prevalence of current posttraumatic stress disorder (PTSD) was 5.4%, current depression was 8.3%, and 5.4% had suicidal thoughts in the past month. Overall, 26% of veterans had low homecoming support, which was more prevalent among Vietnam veterans (44.3%, p < 0.001). In multivariable logistic regressions, controlling for demographics, combat exposure, number of deployments, trauma history, and operational theater, low postdeployment support was associated with PTSD (odds ratio, 2.13; p = 0.032) and suicidality (odds ratio, 1.91; p < 0.030), but not depression. For suicidality, an interaction was detected for homecoming by theater status, whereby Iraq/Afghanistan veterans with lower homecoming support had a higher probability of suicidal thoughts (p = 0.002). Thus, years after deployment, lower homecoming support was associated with current PTSD and suicidality, regardless of theater and warzone exposures. For suicidality, lower support had a greater impact on Iraq/Afghanistan veterans.


Assuntos
Campanha Afegã de 2001- , Depressão/epidemiologia , Guerra do Iraque 2003-2011 , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Ideação Suicida , Veteranos/psicologia , Guerra do Vietnã , Adolescente , Adulto , Idoso , Depressão/etiologia , Feminino , Humanos , Modelos Logísticos , Masculino , Saúde Mental/estatística & dados numéricos , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Apoio Social , Transtornos de Estresse Pós-Traumáticos/etiologia , Estados Unidos/epidemiologia , Veteranos/estatística & dados numéricos , Adulto Jovem
5.
J Med Ethics ; 40(3): 211-2, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23800451

RESUMO

Recent advances in digital technology including internet, email and smartphones has revolutionised clinical photography and medical record data storage. The use of smartphones is becoming ubiquitous among medical professionals and the use of clinical photography has become an integral component of the management of patients in a variety of visually orientated specialties. Although clinical photography has its benefits, with this evolving technology also emerge new ethical, legal and social issues, which clinicians must be aware of.


Assuntos
Confidencialidade/ética , Ética Médica , Fotografação/ética , Humanos , Consentimento Livre e Esclarecido/ética , Prontuários Médicos
6.
Int J Emerg Ment Health ; 15(3): 147-58, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24558743

RESUMO

On October 29, 2012, Hurricane Sandy made landfall in the most densely populated region in the US. In New Jersey, thousands of families were made homeless and entire communities were destroyed in the worst disaster in the history of the state. The economic impact of Sandy was huge, comparable to Hurricane Katrina. The areas that sustained the most damage were the small- to medium-sized beach communities along New Jersey's Atlantic coastline. Six months following the hurricane, we conducted a random telephone survey of 200 adults residing in 18 beach communities located in Monmouth County. We found that 14.5% (95% CI = 9.9-20.2) of these residents screened positive for PTSD and 6.0% (95% CI = 3.1-10.2) met criteria for major depression. Altogether 13.5% (95% CI = 9.1-19.0) received mental health counseling and 20.5% (95% CI = 15.1-26.8) sought some type of mental health support in person or online, rates similar to those reported in New York after the World Trade Center disaster In multivariate analyses, the best predictors of mental health status and service use were having high hurricane exposure levels, having physical health limitations, and having environmental health concerns. Research is needed to assess the mental health status and service use of Jersey Shore residents over time, to evaluate environmental health concerns, and to better understand the storm's impact among those with physical health limitations.


Assuntos
Tempestades Ciclônicas , Desastres , Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Serviços de Saúde Mental/estatística & dados numéricos , Saúde Mental , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Adolescente , Adulto , Idoso , Tempestades Ciclônicas/estatística & dados numéricos , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/etiologia , Desastres/estatística & dados numéricos , Feminino , Humanos , Masculino , Saúde Mental/estatística & dados numéricos , Pessoa de Meia-Idade , New Jersey/epidemiologia , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/etiologia , Adulto Jovem
7.
J Neurotrauma ; 40(15-16): 1512-1523, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36927167

RESUMO

Traumatic Brain Injury (TBI) is a risk factor for Alzheimer's disease and Alzheimer's disease related dementias (AD/ADRD) and otherwise classified post-traumatic neurodegeneration (PTND). Targeted research is needed to elucidate the circumstances and mechanisms through which TBI contributes to the initiation, development, and progression of AD/ADRD pathologies including multiple etiology dementia (MED). The National Institutes of Health hosts triennial ADRD summits to inform a national research agenda, and TBI was included for a second time in 2022. A multidisciplinary expert panel of TBI and dementia researchers was convened to re-evaluate the 2019 research recommendations for understanding TBI as an AD/ADRD risk factor and to assess current progress and research gaps in understanding post-TBI AD/ADRD. Refined and new recommendations were presented during the MED special topic session at the virtual ADRD Summit in March 2022. Final research recommendations incorporating broad stakeholder input are organized into four priority areas as follows: (1) Promote interdisciplinary collaboration and data harmonization to accelerate progress of rigorous, clinically meaningful research; (2) Characterize clinical and biological phenotypes of PTND associated with varied lifetime TBI histories in diverse populations to validate multimodal biomarkers; (3) Establish and enrich infrastructure to support multimodal longitudinal studies of individuals with varied TBI exposure histories and standardized methods including common data elements (CDEs) for ante-mortem and post-mortem clinical and neuropathological characterization; and (4) Support basic and translational research to elucidate mechanistic pathways, development, progression, and clinical manifestations of post-TBI AD/ADRDs. Recommendations conceptualize TBI as a contributor to MED and emphasize the unique opportunity to study AD/ADRD following known exposure, to inform disease mechanisms and treatment targets for shared common AD/ADRD pathways.


Assuntos
Doença de Alzheimer , Lesões Encefálicas Traumáticas , Demência , Demências Mistas , Humanos , Doença de Alzheimer/complicações , Demência/etiologia , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/diagnóstico , Pesquisa
8.
Psychosom Med ; 74(9): 912-5, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23115347

RESUMO

OBJECTIVE: Posttraumatic stress disorder (PTSD) is associated with altered neuropsychological function, possibly including complex visual information processing. Grapheme-color synesthesia refers to the phenomenon that a particular letter or number elicits the visual perception of a specific color. The study objective was to assess if grapheme-color synesthesia was associated with PTSD among US veterans. METHOD: We surveyed 700 veterans who were outpatients in a multihospital system in Pennsylvania. All veterans had served at least one warzone deployment. PTSD and grapheme-color synesthesia were assessed using validated research instruments. RESULTS: The mean age of veterans was 59 years, and 96% were men. The prevalence of current PTSD was 7% (95% confidence interval [CI] = 5.1-8.8), and current partial PTSD was 11% (95% CI = 9.3-14.0). The prevalence of current depression was 6% (95% CI = 4.7-8.3). Altogether, 6% (95% CI = 4.8-8.5) of veterans screened positive for grapheme-color synesthesia. Bivariate analyses suggested that grapheme-color synesthesia was associated with current PTSD (odds ratio [OR] = 3.4, p = .004) and current partial PTSD (OR = 2.4, p = .013), but not current depression (OR = 1.1, p = .91). Multivariate logistic regression results, adjusting for age, sex, marital status, level of education, current psychotropic medication use, and concussion history, confirmed these results. CONCLUSIONS: Grapheme-color synesthesia seems to be associated with PTSD among veterans who had been deployed. This finding may have implications for PTSD diagnostic screening and treatment. Research is recommended to confirm this finding and to determine if synesthesia is a risk indicator for PTSD among nonveterans.


Assuntos
Associação , Percepção de Cores , Reconhecimento Visual de Modelos , Semântica , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Transtornos de Estresse Pós-Traumáticos/psicologia , Veteranos , Comorbidade , Transtorno Depressivo Maior/diagnóstico , Transtorno Depressivo Maior/psicologia , Feminino , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Fatores de Risco
9.
Brain ; 134(Pt 7): 1959-71, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21705420

RESUMO

Charcot-Marie-Tooth disease is a genetically heterogeneous group of motor and sensory neuropathies associated with mutations in more than 30 genes. Charcot-Marie-Tooth disease type 4J (OMIM 611228) is a recessive, potentially severe form of the disease caused by mutations of the lipid phosphatase FIG4. We provide a more complete view of the features of this disorder by describing 11 previously unreported patients with Charcot-Marie-Tooth disease type 4J. Three patients were identified from a small cohort selected for screening because of their early onset disease and progressive proximal as well as distal weakness. Eight patients were identified by large-scale exon sequencing of an unselected group of 4000 patients with Charcot-Marie-Tooth disease. In addition, 34 new FIG4 variants were detected. Ten of the new CMT4J cases have the compound heterozygous genotype FIG4(I41T/null) described in the original four families, while one has the novel genotype FIG4(L17P/nul)(l). The population frequency of the I41T allele was found to be 0.001 by genotyping 5769 Northern European controls. Thirty four new variants of FIG4 were identified. The severity of Charcot-Marie-Tooth disease type 4J ranges from mild clinical signs to severe disability requiring the use of a wheelchair. Both mild and severe forms have been seen in patients with the same genotype. The results demonstrate that Charcot-Marie-Tooth disease type 4J is characterized by highly variable onset and severity, proximal as well as distal and asymmetric muscle weakness, electromyography demonstrating denervation in proximal and distal muscles, and frequent progression to severe amyotrophy. FIG4 mutations should be considered in Charcot-Marie-Tooth patients with these characteristics, especially if found in combination with sporadic or recessive inheritance, childhood onset and a phase of rapid progression.


Assuntos
Doença de Charcot-Marie-Tooth/diagnóstico , Doença de Charcot-Marie-Tooth/genética , Flavoproteínas/genética , Mutação/genética , Adulto , Austrália , Doença de Charcot-Marie-Tooth/classificação , Doença de Charcot-Marie-Tooth/complicações , Criança , Pré-Escolar , Éxons/genética , Saúde da Família , Feminino , Deformidades do Pé/etiologia , Deformidades do Pé/genética , Genótipo , Ácido Glutâmico/genética , Humanos , Lisina/genética , Masculino , Pessoa de Meia-Idade , Modelos Moleculares , Debilidade Muscular/etiologia , Debilidade Muscular/genética , Condução Nervosa/genética , Fenótipo , Monoéster Fosfórico Hidrolases , Nervo Sural/patologia , Nervo Sural/ultraestrutura
11.
Front Psychiatry ; 13: 899084, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35733800

RESUMO

The impact of "moral injury" (MI) among deployed veterans, defined as actions in combat that violate a veteran's moral beliefs and result in psychological distress, has increasingly become a significant clinical concern separate from other trauma- and stressor-related disorders. MI involves severe distress over violations of core beliefs often followed by feelings of guilt and conflict and is common among veterans with PTSD. While the psychological impact of PTSD is well-documented among veterans, this has been done less so with respect to MI. We studied MI among 1,032 deployed veterans who were outpatients in a large non-profit multi-hospital system in central Pennsylvania. The study included active duty and Guard/Reserve members, as well as veterans who were not Department of Veterans Affairs (VA) service users. Our hypothesis was that, controlling for other risk factors, veterans with high MI would have current mental disorders. Our secondary hypothesis was that MI would be associated with other psychopathologies, including chronic pain, sleep disorders, fear of death, anomie, and use of alcohol/drugs to cope post deployment. Most veterans studied were deployed to Vietnam (64.1%), while others were deployed to post-Vietnam conflicts in Iraq and Afghanistan and elsewhere. Altogether, 95.1% of the veterans were male and their mean age was 61.6 years (SD = 11.8). Among the veterans, 24.4% had high combat exposure, 10.9% had PTSD, 19.8% had major depressive disorder, and 11.7% had a history of suicidal thoughts. Based on the Moral Injury Events Scale (MIES), 25.8% had high MI post deployment, defined as a score above the 75th percentile. Results show that high MI among veterans was associated with current global mental health severity and recent mental health service use, but not suicidal thoughts. In addition, as hypothesized, MI was also associated with pain, sleep disorders, fear of death, anomie, use of alcohol/drugs to cope post-deployment, and poor unit support/morale during deployment. Deployed veterans with MI are more likely to have current mental health disorders and other psychological problems years after deployment. Further research is advised related to the screening, assessment, treatment, and prevention of MI among veterans and others after trauma exposures.

12.
J Addict Dis ; 40(2): 217-226, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34521314

RESUMO

BACKGROUND: Maladaptive drinking is an increasing concern among military policy makers and healthcare providers. The goal of this study was to assess how social and psychological factors relate to alcohol problems among post-deployed US veterans and how problematic drinking is associated with well-being. METHODS: Data were collected via a telephone survey from a random sample of veterans receiving their healthcare from a large non-VA hospital system in central Pennsylvania (N = 1730). Interviewers inquired about participants' current alcohol consumption, using the CAGE and AUDIT-C scales, and health-related outcomes (general psychological distress, major depression, and self-reported health status). Analyses included demographic, military and nonmilitary stressful events, use of alcohol or drugs to cope post-deployment, use of psychiatric services, and personality characteristics as independent variables. Our sample was 95% male, 96% White, and had a mean age of 59 years old (SD = 12 years). RESULTS: Analyses included demographic, military and nonmilitary stressful events, use of alcohol or drugs to cope post-deployment, use of psychiatric services, and personality characteristics as independent variables. Our sample was 95% male, 96% White, and had a mean age of 59 years old (SD = 12 years). Analyses for our drinking measures show that those who used drugs or alcohol to cope post-deployment were more likely to be problematic drinkers, while positive personality characteristics such as agreeableness and conscientiousness were related to fewer drinking problems. Multivariate logistic regressions for our well-being measures found that alcohol misuse was not related to distress or depression, but that a positive score on the AUDIT-C was associated with a lower likelihood of poor self-rated health. Using alcohol or drugs to cope was related to higher distress. DISCUSSION: We conclude that service providers might consider using post-deployment AUDIT-C and the drugs and alcohol coping questions when screening for possible alcohol and mental health problems among veterans.


Assuntos
Transtornos Relacionados ao Uso de Álcool , Alcoolismo , Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Transtornos Relacionados ao Uso de Álcool/psicologia , Alcoolismo/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos de Estresse Pós-Traumáticos/psicologia
13.
Pharmgenomics Pers Med ; 15: 17-27, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35058707

RESUMO

INTRODUCTION: Since veteran suicide is a concern and our knowledge of predictive factors is still limited, our objective was to assess risk factors for suicide, including genetic factors, among deployed veterans. METHODS: For this study, we surveyed 1730 veterans who were outpatients in a multi-hospital system in Pennsylvania. Altogether, 1041 veterans (60%) provided a DNA sample. The genetic risk variants investigated were within loci previously associated with PTSD and substance misuse, including CRHR1, CHRNA5, RORA, and FKBP5 genetic variations, which were used to calculate a polygenic risk score (range=0-8, mean=3.6, SD=1.4). RESULTS: Most veterans (56.2%) were deployed to Vietnam while significant numbers were deployed to Iraq, Afghanistan, and other post-Vietnam conflicts. Overall, 95.1% of the veterans were male, their mean age was 56.2 (SD=12), and 95.6% were Caucasian. Among the veterans, 24% had high combat exposure. The prevalence of lifetime suicidal thoughts was 11.3%. Additionally, 5.7% ever developed a suicide plan or attempted suicide in their lifetimes. Among those with a history of a lifetime suicide attempt or suicide plan, the PTSD genetic risk score was significantly higher (OR=3.96 vs 3.55, p=0.033), but for suicidal thoughts, this association was not significant (p=0.717). In multivariable analysis (MVA) logistic regression, significant predictors of attempting suicide or having a suicide plan were history of depression (OR=5.04, p<0.001), PTSD genetic risk score (OR=1.25, p=0.036), history of childhood abuse/neglect (OR=2.24, p=0.009), and lifetime marijuana use (OR= 1.56, p=0.020). Conversely, rural residence was protective for suicide risk (OR=0.49; p=0.031). For suicidal thoughts, in the MVA genetic risk score was not significant (p=0.697), but history of child abuse/neglect (p<0.001), history of depression (p>0.001), low psychological resilience (p=0.004), and lifetime marijuana use (p=0.022) were significant. DISCUSSION: In this study, we identified genetic risk variants and other predictors for suicide among veterans that may have implications for future screening and clinical care. Further research is advised.

14.
J Trauma Stress ; 24(5): 515-25, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21882246

RESUMO

Research suggests that posttraumatic stress disorder (PTSD) is associated with increased alcohol use, but the findings have not been consistent. We assessed alcohol use, binge drinking, and psychotropic medication use longitudinally in 1,681 New York City adults, representative of the 2000 census, 2 years after the World Trade Center attacks. We found that, with the exception of a modified CAGE Questionnaire index for alcohol, alcohol use showed a modest increase over time and was related to PTSD symptoms, with an increase of about 1 more drink per month for those with PTSD, even though overall levels appeared to be within the National Institute on Alcohol Abuse and Alcoholism's safe range. Psychotropic medication use followed a similar trend; those with PTSD used psychotropics about 20 more days over the past year than those without. Because the study analyses adjusted for key psychosocial variables and confounders, it is not clear if the increased alcohol use following trauma exposure is associated with self-medication of PTSD symptoms, whether increased alcohol use prior to exposure is a risk for delayed-onset PTSD, or whether a third unmeasured variable is involved. Further research is warranted.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Ataques Terroristas de 11 de Setembro/psicologia , Adolescente , Adulto , Idoso , Consumo de Bebidas Alcoólicas/psicologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Cidade de Nova Iorque/epidemiologia , Psicotrópicos/uso terapêutico , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Inquéritos e Questionários , Adulto Jovem
15.
Plast Reconstr Surg Glob Open ; 9(7): e3713, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34422527

RESUMO

With the rise in number of breast implant removals for a variety of indications, strategies to improve aesthetic outcomes, while minimizing scars and operating time, will prove to be of benefit. We present here a novel periareolar sickle skin excision as a good option for women with mild to moderate ptosis and central loss of breast volume following implant removal/capsulectomy. METHODS: The ECLiPSE (Explant, Capsulectomy, Lift using Periareolar Sickle skin Excision) was utilized in 53 patients with a median follow-up of 24 weeks. RESULTS: The majority of these patients had breast implants for cosmetic augmentation and the most common indication for implant removal was capsular contracture (n = 47, 88.7%). Forty-six patients (86.8%) scored a high or very high satisfaction with the outcome of the procedure. CONCLUSION: We believe that the ECLiPSE procedure is a useful option that can produce a reasonable aesthetic outcome following implant removal/capsulectomy while minimizing visible scarring.

16.
Hum Genet ; 128(5): 491-9, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20725741

RESUMO

A locus on chromosome 15q25.1 previously implicated in nicotine, alcohol, and cocaine dependence, smoking, and lung cancer encodes subunits of the nicotinic acetylcholine receptor (nAChR) expressed in the mesolimbic system and thought to mediate substance dependence. Opioid dependence severity (ODS), nicotine dependence severity (NDS), smoking status and quantity, and the number of attempts to quit were assessed using questionnaire instruments in 505 subjects who were prescribed opioid medications for chronic pain in outpatient practice sites. Multivariate regression was used to test for genetic association of these phenotypes with 5 SNPs in the nAChR gene cluster on chromosome 15q25.1, adjusting for background variables. A coding variant in CHRNA5 (rs16969968[A]) was significantly associated with 1.4-unit higher ODS (p < 0.00017). A variant in the 3' untranslated region of CHRNA3 (rs660652[G]) was significantly associated with 1.7-fold higher odds of lifetime smoking (p < 0.0092), 1.1-unit higher NDS (p < 0.0007), 0.7 more pack-years of cigarette smoking (p < 0.0038), and 0.8 more lifetime attempts to quit (p < 0.0084). Our data suggest an association of DNA variants in the nAChR gene cluster on chromosome 15q25.1 with ODS, as well as NDS and related smoking phenotypes. While the association of this locus with NDS and smoking phenotypes is well known, the association with ODS, a dimension of opioid substance dependence, is novel and requires verification in independent studies.


Assuntos
Cromossomos Humanos Par 15 , Transtornos Relacionados ao Uso de Opioides/genética , Polimorfismo de Nucleotídeo Único , Receptores Nicotínicos/genética , Tabagismo/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Predisposição Genética para Doença , Haplótipos , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Fenótipo , Medicamentos sob Prescrição , Índice de Gravidade de Doença , Fumar , Abandono do Hábito de Fumar/estatística & dados numéricos , Inquéritos e Questionários
17.
Front Neurol ; 11: 753, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32849213

RESUMO

Pulsed microwaves above specific energy thresholds have been reported to cause brain injury in animal models. The actual physical mechanism causing brain damage is unexplained while the clinical reality of these injuries remains controversial. Here we propose mechanisms by which pulsed microwaves may injure brain tissue by transduction of microwave energy into damaging acoustic phonons in brain water. We have shown that low intensity explosive blast waves likely initiate phonon excitations in brain tissues. Brain injury in this instance occurs at nanoscale subcellular levels as predicted by physical consideration of phonon interactions in brain water content. The phonon mechanism may also explain similarities between primary non-impact blast-induced mild Traumatic Brain Injury (mTBI) and recent clinical and imaging findings of unexplained brain injuries observed in US embassy personnel possibly due to directed radiofrequency radiation. We describe experiments to elucidate mechanisms, RF frequencies and power levels by which pulsed microwaves potentially injure brain tissue. Pathological documentation of nanoscale brain blast injury has been supported experimentally using transmission electron microscopy (TEM) demonstrating nanoscale cellular damage in the absence of gross or light microscopic findings. Similar studies are required to better define pulsed microwave brain injury. Based upon existing findings, clinical diagnosis of both low intensity blast and microwave-induced brain injury likely will require diffusion tensor imaging (DTI), a specialized water based magnetic resonance imaging (MRI) technique.

18.
Neuropsychiatr Dis Treat ; 16: 43-54, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32021198

RESUMO

BACKGROUND: Previously we reported a genetic risk score significantly improved PTSD prediction among a trauma-exposed civilian population. In the current study, we sought to assess this prediction among a trauma-exposed military population. METHODS: We examined current PTSD diagnosis and PTSD symptom severity among a random sample of 1042 community-based US military veterans. Main effects and interaction effects were assessed for PTSD genetic risk by trauma exposure using cross-product terms for PTSD x trauma exposures, including combat, lifetime trauma, and adverse childhood exposures. The PTSD risk variants studied were within genetic loci previously associated with PTSD, including CRHR1, CHRNA5, RORA, and FKBP5 genetic variants, which were used to calculate a total PTSD genetic risk score (range=0-8, mean=3.6, SD=1.4). RESULTS: Based on DSM-5 PTSD criteria, 7.1% of veterans (95% CI=5.6-8.8) met criteria for current PTSD. The PTSD genetic risk count was significantly higher among PTSD cases vs non-cases (3.92 vs 3.55, p=0.027). Since the PTSD genetic risk score was not significant in the PTSD diagnosis model, we assessed this association using PTSD symptom severity. Because these symptom data were skewed (mean=9.54, SD=12.71, range=0-76), we used negative binomial regression to assess this outcome. This symptom model included a PTSD genetic risk score, demographic factors, trauma exposures, current insomnia, current depression, concussion history, and attention-deficit disorder, expressed as incident rate ratios (IRR), which is an estimate of one-unit increase in PTSD severity, given other variables are held constant. Variables in the final model included age and sex (both p<0.001), PTSD genetic risk (IRR=1.02, p=0.028), warzone tours (IRR=0.94, p=0.003), childhood abuse (IRR=1.50, p<0.0001), current depression (IRR=1.89, p<0.0001), current insomnia (IRR=2.58, p<0.0001), low social support (IRR=1.19, p<0.0001), attention-deficit disorder (IRR=1.51, p<0.0001), agreeable personality (IRR=0.77, p<0.0001), and concussion (IRR=1.38, p<0.0001). Significant interactions were detected for combat and lifetime trauma exposure by PTSD genetic risk (both p<0.0001), suggesting that the impact of trauma exposures on PTSD severity was lower when the PTSD genetic risk was higher. CONCLUSION: Both warzone and non-warzone factors predicted current PTSD symptoms among veterans, including a PTSD genetic risk score. Interaction effects were detected for combat exposure and lifetime trauma by genetic risk score for PTSD symptoms, suggesting that PTSD symptom manifestation was more dependent on PTSD risk variants than the level of trauma or combat exposure. This suggests that controlling for other factors, the absence of genetic risk variants may confer PTSD resilience. Further research is planned.

19.
Mil Behav Health ; 7(3): 304-314, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31363423

RESUMO

Social psychological theory hypothesizes that one's identity, self-definitions, and meanings used for a particular social role fosters individual purpose in life and affects behavior in specific social situations. As such, it can be protective against the onset of psychological disorders. We examined this hypothesis with data collected from 1,730 military veterans recruited to study the health effects of warzone deployments. The sample was primarily male, older, and White. Our key independent variable was a Likert scale rating the prominence of a respondent's veteran identity: how important it is to the person. Outcome variables included posttraumatic stress disorder (PTSD), suicide ideation, depression, alcohol misuse, and use of VA services. Bivariate analysis suggested that veterans with a prominent veteran identity are older, noncollege graduates, have less income, and had their first deployment to Vietnam. In multivariate analyses, study participants with a prominent veteran identity were less likely to exhibit suicide ideation, but more likely to misuse alcohol and use VA services. We found no differences for PTSD, self-rated health, or depression by veteran identity. Veterans who scored higher on the veteran identity scale appeared to be protected from suicidal thoughts, although they had an elevated risk for alcohol misuse.

20.
Behav Brain Res ; 340: 102-105, 2018 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-27555540

RESUMO

Between April 2007 and December 2015, the Veterans Health Administration (VHA) screened one million combat veterans for traumatic brain injury (TBI), among 2.6 million deployed during operations Enduring Freedom, Iraqi Freedom and New Dawn (OEF/OIF/OND). Since 2007, among those reporting, screened and referred for definitive evaluation, approximately 8.4% of these Veterans received a diagnosis of TBI, the majority characterized as mTBI/Concussion (mTBI) and, in great proportion, related to blast exposures. Mild Traumatic brain injury called "a signature injury" is also known as 'the invisible injury' of these conflicts. Identifying and assessing neuropathological, cellular and resulting cognitive, emotional, behavioral and neurological consequences of mTBI comprise vast clinical and research challenges. We provide a brief overview of current history, injury mechanisms related to blast exposure, coordinated research support, and the need to understand specific cellular and neurological changes occurring with blast injury, particularly mTBI.


Assuntos
Traumatismos por Explosões/diagnóstico , Traumatismos por Explosões/terapia , Lesões Encefálicas Traumáticas/etiologia , Lesões Encefálicas Traumáticas/terapia , Lesões Relacionadas à Guerra/diagnóstico , Lesões Relacionadas à Guerra/terapia , Animais , Traumatismos por Explosões/fisiopatologia , Traumatismos por Explosões/psicologia , Lesões Encefálicas Traumáticas/diagnóstico , Lesões Encefálicas Traumáticas/fisiopatologia , Humanos , Lesões Relacionadas à Guerra/fisiopatologia , Lesões Relacionadas à Guerra/psicologia
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