RESUMO
Mood disorders are highly prevalent in people living with HIV (PLWH) and represent a potential contributor to functional impairment in activities of daily living. We aimed to determine if (1) Anxiety and depression symptoms were independently associated with impairments in basic self-care, role functioning, and social functioning and (2) PLWH differentially experienced impairments due to mood symptoms compared to those without HIV. Data for this study were obtained from 150 individuals (87 PLWH, 61% male, mean age = 44) via a cross-sectional study on alcohol and HIV-associated brain dysfunction. The Beck Anxiety Inventory (BAI) and the Center for Epidemiologic Studies Depression Scale (CES-D) were used to assess anxiety and depressive symptoms. Higher anxiety symptoms were associated with role functioning impairment, while higher depressive and anxiety symptoms were each associated with social functioning impairment. As depressive symptoms increased, PLWH were 3x more likely to have impairments in role functioning compared to those without HIV. HIV status did not interact with mood symptoms to affect basic self-care or social functioning. Overall, mood symptoms are associated with different types of functional impairment, and improved management of mood symptoms could lead to improved role and social functioning.
Assuntos
Depressão , Infecções por HIV , Humanos , Masculino , Feminino , Atividades Cotidianas , Infecções por HIV/complicações , Estudos Transversais , AnsiedadeRESUMO
There is a paucity of research on the prevalence of subjective cognitive complaints in people living with human immunodeficiency virus, along with the predictors and outcomes related to these complaints. We assessed demographics, substance use and psychiatric predictors, and HIV-related outcomes associated with subjective cognitive complaint items from the Cognitive Difficulties Scale. The sample consisted of 889 people living with HIV in the survey-based Florida Cohort. Results of multivariable regression models indicated that age (45-54), hazardous alcohol consumption, more frequent marijuana use and psychiatric symptoms (depression, anxiety, PTSD) were significant predictors of subjective cognitive complaints. Subjective cognitive complaints were associated with lower adherence to antiretroviral therapy in bivariate analyses, but this relationship was no longer significant after controlling for depression, race, alcohol and drug use. Further research into the relationship between depressive and subjective cognitive complaints may provide additional avenues for intervention.
RESUMEN: Existe una escasez de investigación sobre la prevalencia de quejas cognitivas subjetivas en personas que viven con el virus de la inmunodeficiencia humana (VIH), junto con los predictores y los resultados relacionados con estas quejas. Evaluamos la demografía, el uso de sustancias y los predictores psiquiátricos, y los resultados relacionados con el VIH asociados con los ítems de quejas cognitivas subjetivas de la Escala de Dificultades Cognitivas. La muestra consistió en 889 personas que viven con el VIH en la cohorte de Florida basada en la encuesta. Los resultados de los modelos de regresión multivariable indicaron que la edad (45-54), el consumo peligroso de alcohol, el uso más frecuente de marihuana y los síntomas psiquiátricos (depresión, ansiedad, trastorno de estrés postraumático) fueron predictores significativos de quejas cognitivas subjetivas. Las quejas cognitivas subjetivas se asociaron con una menor adherencia a la terapia antirretroviral en los análisis bivariados, pero esta relación dejó de ser significativa después de controlar la depresión, la raza, el alcohol y el consumo de drogas. La investigación adicional sobre la relación entre las quejas cognitivas depresivas y subjetivas puede proporcionar vías adicionales de intervención.
Assuntos
Infecções por HIV , Uso da Maconha , Ansiedade/epidemiologia , Cognição , Depressão/epidemiologia , Depressão/psicologia , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Avaliação de Resultados em Cuidados de SaúdeRESUMO
Both HIV status and heavy alcohol use have been associated with reduced cognitive function, particularly in the domains of working memory and executive function. It is unclear what aspects of working memory and executive function are associated with HIV status and heavy alcohol use and whether performance on these measures are associated with functional impairment. We examined the relationship between HIV, history of heavy alcohol consumption, and HIV/alcohol interaction on speeded tests of frontal inhibitory abilities, a working memory task related to mental manipulation of letters and numbers, cognitive flexibility, and measures of functional impairment. Study participants included 284 individuals (151 HIV +) recruited from two different studies focusing on HIV associated brain dysfunction, one specific to the effects of alcohol, the other specific to the effects of aging. HIV status was not independently associated with working memory and executive function measures. Higher level of alcohol consumption was associated with reduced performance on Letter Number Sequencing. Poorer Letter Number Sequencing performance was associated with role impairment (an inability to do certain kinds of work, housework, or schoolwork) and executive function difficulties. Future studies should examine causal associations and interventions targeting working memory abilities.
RESUMEN: Tanto el estado del VIH como el consumo excesivo de alcohol se han asociado con una función cognitiva reducida, particularmente en los dominios de la memoria de trabajo y la función ejecutiva. No está claro qué aspectos de la memoria de trabajo y la función ejecutiva están asociados con el estado del VIH y el consumo excesivo de alcohol y si el desempeño en estas medidas está asociado con un deterioro funcional. Examinamos la relación entre el VIH, el historial de consumo excesivo de alcohol y la interacción VIH / alcohol, en pruebas aceleradas de capacidades inhibitorias frontales, tareas de memoria de trabajo relacionadas con la manipulación mental de letras y números, flexibilidad cognitiva y medidas de deterioro funcional. Los participantes del estudio incluyeron 284 personas (151 VIH +) reclutadas de dos estudios diferentes que se centran en la disfunción cerebral asociada al VIH, uno específico de los efectos del alcohol y el otro específico de los efectos del envejecimiento. El estado del VIH no se asoció de forma independiente con las medidas de memoria de trabajo y función ejecutiva. Un mayor nivel de consumo de alcohol se asoció con un rendimiento reducido en la secuenciación de números de letras. Un desempeño deficiente en la secuenciación de números de letras se asoció con un deterioro de los roles (una incapacidad para realizar ciertos tipos de trabajo, tareas domésticas o escolares) y dificultades en las funciones ejecutivas. Los estudios futuros deben examinar las asociaciones causales y las intervenciones dirigidas a las capacidades de la memoria de trabajo.
Assuntos
Função Executiva , Infecções por HIV , Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/epidemiologia , Humanos , Memória de Curto Prazo , Testes NeuropsicológicosRESUMO
BACKGROUND: There is growing concern about the health impact of heavy alcohol use in people infected with human immunodeficiency virus (HIV+). Mixed findings of past studies regarding the cognitive impact of alcohol use in HIV+ adults have been mixed, with inconsistent evidence that alcohol consumption exacerbates HIV-associated brain dysfunction. This study examined contributions of current heavy drinking, lifetime alcohol use disorder (AUD), and age to cognitive deficits in HIV+ adults, and relative to other HIV-associated clinical factors. METHODS: Cognitive performance of HIV+ adults (n = 104) was assessed, and comparisons were made between heavy current to nonheavy drinkers (NIAAA criteria), lifetime AUD versus no-AUD, and older (>50 years) versus younger participants. Hierarchical regression analyses were conducted to examine the association between cognitive performance and current heavy drinking, lifetime AUD, and older age, while also correcting for HIV clinical factors and history of other substance use. RESULTS: Individuals reporting current heavy drinking and meeting criteria for lifetime AUD demonstrated the greatest degree of deficits across multiple cognitive domains. Deficits were greatest among HIV+ adults with lifetime AUD, and older age was also associated with weaker cognitive performance. Lifetime AUD and older age independently exhibited stronger associations with cognitive performance than HIV clinical factors (e.g., viral load, current CD4, and nadir CD4) or past opiate and cocaine use. CONCLUSIONS: Current heavy drinking and lifetime AUD adversely affect cognitive function in HIV+ adults. Greatest deficits existed when there was a history of AUD and continued current heavy drinking, indicating that past AUD continues to have an adverse impact and should not be ignored. That alcohol use was more strongly associated with cognitive performance than HIV clinical factors underscore clinical importance of targeting reduction in heavy alcohol consumption in HIV+ adults.
Assuntos
Envelhecimento/psicologia , Consumo de Bebidas Alcoólicas/epidemiologia , Alcoolismo/epidemiologia , Disfunção Cognitiva/epidemiologia , Infecções por HIV/epidemiologia , Cognição , Comorbidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de RiscoRESUMO
OBJECTIVES: Antiretroviral therapy is affording longer lifespans for people living with HIV (PLWH), yet factors such as substance use play an increasing role in morbidity and mortality in this population. Though previous studies have examined substance use differences between age cohorts of PLWH, no study has examined the influence of birth cohort on current substance use patterns. Thus, this study investigated the prevalence of past 12-month self-reported substance use between four birth cohorts, <1970 (M age = 54.1), 1970s (M age = 41.5), 1980s (M age = 31.3 years old), and 1990s (M age = 23.2 years old) of PLWH in Florida. METHODS: PLWH (N = 934) recruited from community health clinics in Florida completed a questionnaire assessing sociodemographics, health status, and substance use. Multivariate logistic regressions utilizing the <1970 cohort as the referent group examined the relationship between birth cohort and substance use. RESULTS: The 1980s cohort had significantly greater odds of marijuana use compared to the oldest cohort (<1970s), while the three younger cohorts (1970s, 1980s, and 1990s) evidenced a significantly greater odds of ecstasy use compared to the oldest group. Contrastingly, the three younger birth cohorts reported significantly less crack use than the oldest cohort, while the youngest group (1990s) also demonstrated an 80% reduction in injection drug use compared to the oldest group. CONCLUSION: The older cohort evidenced significantly greater crack and injection drug use, while the younger cohorts evidenced greater marijuana and ecstasy use. Therefore, it is important to develop age-specific substance use interventions among PLWH.
Assuntos
Infecções por HIV/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto , Fatores Etários , Transtornos Relacionados ao Uso de Cocaína/epidemiologia , Comorbidade , Feminino , Florida/epidemiologia , Humanos , Masculino , Uso da Maconha/epidemiologia , Pessoa de Meia-Idade , Prevalência , Abuso de Substâncias por Via Intravenosa/epidemiologia , Adulto JovemRESUMO
Chronic traumatic encephalopathy (CTE) is a neuropathologically defined disease reportedly linked to a history of repetitive brain trauma. As such, retired collision sport athletes are likely at heightened risk for developing CTE. Researchers have described distinct pathological features of CTE as well a wide range of clinical symptom presentations, recently termed traumatic encephalopathy syndrome (TES). These clinical symptoms are highly variable, non-specific to individuals described as having CTE pathology in case reports, and are often associated with many other factors. This review describes the cognitive, emotional, and behavioral changes associated with 1) developmental and demographic factors, 2) neurodevelopmental disorders, 3) normal aging, 4) adjusting to retirement, 5) drug and alcohol abuse, 6) surgeries and anesthesia, and 7) sleep difficulties, as well as the relationship between these factors and risk for developing dementia-related neurodegenerative disease. We discuss why some professional athletes may be particularly susceptible to many of these effects and the importance of choosing appropriate controls groups when designing research protocols. We conclude that these factors should be considered as modifiers predominantly of the clinical outcomes associated with repetitive brain trauma within a broader biopsychosocial framework when interpreting and attributing symptom development, though also note potential effects on neuropathological outcomes. Importantly, this could have significant treatment implications for improving quality of life.
Assuntos
Encefalopatia Traumática Crônica , Transtornos do Neurodesenvolvimento/complicações , Traumatismos em Atletas/complicações , Encefalopatia Traumática Crônica/complicações , Encefalopatia Traumática Crônica/epidemiologia , Encefalopatia Traumática Crônica/etiologia , Encefalopatia Traumática Crônica/terapia , Transtornos Cognitivos/etiologia , Humanos , Transtornos Mentais/etiologia , Transtornos do Humor/etiologia , AposentadoriaRESUMO
BACKGROUND: The acute consumption of excessive quantities of alcohol causes well-recognized neurophysiological and cognitive alterations. As people reach advanced age, they are more prone to cognitive decline. To date, the interaction of current heavy alcohol (ethanol [EtOH]) consumption and aging remains unclear. This study tested the hypothesis that negative consequences of current heavy alcohol consumption on neurocognitive function are worse with advanced age. Further, we evaluated the relations between lifetime history of alcohol dependence and neurocognitive function METHODS: Sixty-six participants underwent a comprehensive neurocognitive battery. Current heavy EtOH drinkers were classified using National Institute on Alcohol Abuse and Alcoholism criteria (EtOH heavy, n = 21) based on the Timeline follow-back and a structured clinical interview and compared to nondrinkers, and moderate drinkers (EtOH low, n = 45). Of the total population, 53.3% had a lifetime history of alcohol dependence. Neurocognitive data were grouped and analyzed relative to global and domain scores assessing: global cognitive function, attention/executive function, learning, memory, motor function, verbal function, and speed of processing. RESULTS: Heavy current EtOH consumption in older adults was associated with poorer global cognitive function, learning, memory, and motor function (ps < 0.05). Furthermore, lifetime history of alcohol dependence was associated with poorer function in the same neurocognitive domains, in addition to the attention/executive domain, irrespective of age (ps < 0.05). CONCLUSIONS: These data suggest that while heavy current alcohol consumption is associated with significant impairment in a number of neurocognitive domains, history of alcohol dependence, even in the absence of heavy current alcohol use, is associated with lasting negative consequences for neurocognitive function.
Assuntos
Consumo Excessivo de Bebidas Alcoólicas/complicações , Depressores do Sistema Nervoso Central/efeitos adversos , Cognição/efeitos dos fármacos , Disfunção Cognitiva/induzido quimicamente , Etanol/efeitos adversos , Adulto , Idoso , Alcoolismo/complicações , Alcoolismo/psicologia , Consumo Excessivo de Bebidas Alcoólicas/psicologia , Feminino , Humanos , Masculino , Memória/efeitos dos fármacos , Pessoa de Meia-Idade , Desempenho Psicomotor/efeitos dos fármacos , Adulto JovemRESUMO
Estimates suggest 30% of adults report the highest levels of loneliness. Though men are more likely than women to use illicit substances and engage in heavy drinking, the prevalence of substance use in women is growing and their escalation toward dependence occurs more rapidly. Loneliness and substance use have greater relevance within the HIV+ population, with higher rates of substance misuse than the general population. However, the association between loneliness and substance use within HIV+ individuals remains understudied. The purpose of the present study was to test the hypothesis that there would be an association between loneliness and substance moderated by gender in HIV+ older adults. A cross-sectional study was conducted between October 2013 and January 2014. Study participants included 96 HIV-positive Black/African American men and women recruited through the University of Florida Center for HIV/AIDS Research, Education and Service (UF CARES) in Jacksonville, Florida. Participants completed an interviewer-administered assessment examining mental and behavioral health. Pearson correlations examined associations between loneliness and substance use. Binary logistic regression analyses stratified by gender examined the association between loneliness and substance use while controlling for covariates. Among women, loneliness was associated with illicit drug use, AOR = 3.37, 95% CI: 1.23-9.21, p = .018 and heavy drinking, AOR = 2.47, 95% CI: 1.07-5.71, p = .033. No significant associations were found between loneliness and illicit drug use, and heavy drinking in men. Substance use among women in this population may be linked to loneliness. Interventions should be gender specific. Further research into this association is necessary as it will likely have important clinical implications for this population.
Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Negro ou Afro-Americano/psicologia , Infecções por HIV/etnologia , Solidão/psicologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Negro ou Afro-Americano/estatística & dados numéricos , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Florida/epidemiologia , Infecções por HIV/complicações , Infecções por HIV/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores Sexuais , Isolamento Social , Estigma Social , Transtornos Relacionados ao Uso de Substâncias/psicologia , Inquéritos e QuestionáriosRESUMO
Depression and apathy are common among people living with HIV (PLWH). However, in PLWH, it is unclear whether depression and apathy are distinct conditions, which contribute to different patterns of disruption to cognitive processing and brain systems. Understanding these conditions may enable the development of prognostic indicators for HIV associated neurocognitive disorders (HAND). The present study examined substance use behavior and cognitive deficits, associated with depression and apathy, in 120 PLWH, using hierarchical regression analyses. Higher levels of depression were associated with a history of alcohol dependence and greater deficits in processing speed, motor and global cognitive functioning. Higher levels of apathy were associated with a history of cocaine dependence. It is recommended that PLWH get screened appropriately for apathy and depression, in order to receive the appropriate treatment, considering the comorbidities associated with each condition. Future research should examine the neurological correlates of apathy and depression in PLWH.
Assuntos
Alcoolismo/psicologia , Apatia , Transtornos Relacionados ao Uso de Cocaína/psicologia , Transtornos Cognitivos/psicologia , Depressão/etiologia , Infecções por HIV/psicologia , Adulto , Alcoolismo/complicações , Atenção , Transtornos Relacionados ao Uso de Cocaína/complicações , Cognição , Transtornos Cognitivos/complicações , Transtornos Cognitivos/epidemiologia , Depressão/psicologia , Transtorno Depressivo/etiologia , Transtorno Depressivo/psicologia , Ensaio de Imunoadsorção Enzimática , Função Executiva , Infecções por HIV/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Escalas de Graduação Psiquiátrica , Autorrelato , Inquéritos e QuestionáriosRESUMO
The purpose of this study was to examine the effects of smoking (past and current) on multiple domains of cognitive functioning in a sample of people living with HIV/AIDS (PLWHA). We hypothesized that among PLWHA, current smokers would demonstrate poorer cognitive functioning when compared to non-smokers, specifically in the cognitive domains of auditory-verbal learning and memory, visuospatial memory, overall cognitive efficiency, executive skills, processing speed, and working memory. Results suggest that in patients being treated for HIV infection, current smoking is negatively associated with learning, memory, and global cognitive functioning. There was also some evidence that cognitive deficits in learning associated with smoking were more pronounced among men compared to women. However, the cause of these effects is not at all clear. In multivariate models, the differences associated with smoking were non-significant when adjusting for education and hepatitis C virus infection. Therefore, smoking may simply reflect a general tendency to more widespread deficits and comorbidities rather than directly impacting cognitive function. Future studies should attempt to examine a priori cognitive factors which contribute to smoking debut and other associated risk factors in order to understand why smoking may be a marker for other risk factors and may ultimately influence neurocognitive functioning critical to daily activities and adherence.
Assuntos
Cognição/efeitos dos fármacos , Infecções por HIV/psicologia , Aprendizagem/efeitos dos fármacos , Fumar/efeitos adversos , Fumar/psicologia , Síndrome da Imunodeficiência Adquirida/psicologia , Adulto , Feminino , Humanos , Masculino , Memória de Curto Prazo/efeitos dos fármacos , Pessoa de Meia-Idade , Testes Neuropsicológicos , Fatores de Risco , Estudos de Amostragem , Aprendizagem Verbal/efeitos dos fármacosRESUMO
Background: Healthcare workers (HCWs) experienced high levels of stress and mental health consequences associated with the COVID-19 pandemic, which may have contributed to unhealthy coping behaviors, such as substance use coping (SUC). This study aimed to understand the extent of and predictors of SUC. Methods: The sample consisted of 263 HCWs in North Central Florida. Univariable and multivariable logistic regression analyses investigated whether moral injury and other work risk factors, protective factors, and clinically relevant symptoms (i.e., work exhaustion, interpersonal disengagement, depression, anxiety, and/or PTSD) were associated with likelihood of SUC. Results: Clinically relevant levels of interpersonal disengagement and anxiety increased the likelihood of SUC. Mediational analyses found that interpersonal disengagement and anxiety explained 54.3% of the relationship between Self Moral Injury and SUC and explained 80.4% of the relationship between professional fulfillment and SUC. Conclusion: Healthcare supervisors should be aware that providers who are experiencing moral injury and less professional fulfillment may be experiencing significant interpersonal disengagement and anxiety, which could lead to SUC. Future studies should examine the effects of implementing targeted prevention and treatment interventions, along with longitudinal outcomes related to SUC behaviors.
RESUMO
BACKGROUND: Poorer working memory function has previously been associated with alcohol misuse, Human Immunodeficiency Virus (HIV) positive status, and risky behavior. Poorer working memory performance relates to alterations in specific brain networks. OBJECTIVE: The current study examined if there was a relationship between brain networks involved in working memory and reported level of alcohol consumption during an individual's period of heaviest use. Furthermore, we examined whether HIV status and the interaction between HIV and alcohol consumption was associated with differences in these brain networks. METHODS: Fifty adults, 26 of whom were HIV positive, engaged in an n-back working memory task (0-back and 2-back trials) administered in a magnetic resonance imaging (MRI) scanner. The Kreek- McHugh-Schluger-Kellogg (KMSK) scale of alcohol consumption was used to characterize an individual's period of heaviest use and correlates well with their risk for alcohol dependence. Connectivity analyses were conducted using data collected during n-back task. RESULTS: Functional connectivity differences associated with greater alcohol consumption included negative connectivity, primarily from parietal attention networks to frontal networks. Greater alcohol consumption was also associated with positive connectivity from working memory nodes to the precuneus and paracingulate. HIV positive status was associated with more nodes of negative functional connectivity relative to alcohol consumption history alone, particularly in the frontoparietal networks. The HIV positive individuals with heavier drinking history related to negative fronto-parietal connectivity, along with positive connectivity from working memory nodes to mesolimbic regions. CONCLUSION: Findings allow for a better understanding of brain networks affected by HIV and alcohol and may provide avenues for interventions.
Assuntos
Alcoolismo/fisiopatologia , Etanol/toxicidade , Lobo Frontal/fisiopatologia , Infecções por HIV/fisiopatologia , Lobo Parietal/fisiopatologia , Adulto , Alcoolismo/complicações , Alcoolismo/diagnóstico por imagem , Alcoolismo/tratamento farmacológico , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Conectoma/métodos , Lobo Frontal/diagnóstico por imagem , Lobo Frontal/efeitos dos fármacos , HIV/crescimento & desenvolvimento , HIV/patogenicidade , Infecções por HIV/complicações , Infecções por HIV/diagnóstico por imagem , Infecções por HIV/tratamento farmacológico , Humanos , Imageamento por Ressonância Magnética , Masculino , Memória de Curto Prazo/fisiologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Lobo Parietal/diagnóstico por imagem , Lobo Parietal/efeitos dos fármacosRESUMO
There is a dire need for interventions that will address the multiple factors--poverty, substance use, early sexual debut, and violence--that influence Haitian youth's engagement in risky behaviors. The deteriorating socioeconomic and political state of the country has had a deleterious effect on the sociocultural milieu and on the boundaries that have heretofore kept risky behaviors in check. Historically, the lakou system, a community-based approach that supports the family unit, has disintegrated, leading to the disruption of traditional parenting patterns. The unstable economic system has also led to the increasing use of children from poor families, who through the restavek system, are sent to work as servants in other households. The breakdown of traditional systems, coupled with the increasing economic and political instability, has had a significant effect on Haitian adolescents. Among boys, increased levels of substance use have been associated with multiple sex partnerships and very early sexual debut. Among girls, extremely high rates of sexual abuse and forced sex have led to relatively high levels of HIV. While the majority of them have been exposed to behavior change messages, behavior change itself has lagged because many adolescents do not accurately perceive their risk exposure. This review explores the risks of HIV transmission among Haitian youth, with a focus on vulnerability factors, including substance use, culture, and the socioeconomic context, and provides recommendations for intervention. An ecosystemic approach, designed specifically for Haitian youth and that takes environmental context and culture into account, is needed.
Assuntos
Infecções por HIV/prevenção & controle , Infecções por HIV/psicologia , Assunção de Riscos , Adolescente , Comportamento do Adolescente , Feminino , Infecções por HIV/economia , Infecções por HIV/epidemiologia , Haiti/epidemiologia , Necessidades e Demandas de Serviços de Saúde , Humanos , MasculinoRESUMO
INTRODUCTION: The advent of combination antiretroviral therapy(cART) has lead to a significant reduction in morbidity and mortality among people living with HIV(PLWH). However, HIV-associated neurocognitive disorders (HAND) still remain a significant problem. One possible mechanism for the persistence of these disorders is through the effect of HIV on brain-derived neurotrophic factor (BDNF). BDNF is influenced by various factors including hazardous alcohol use (HAU), which is prevalent among PLWH. This study attempts to elucidate the relationships between HAU, BDNF and HAND. METHODS: Cross-sectional analyses were conducted on a sample of 199 hazardous alcohol users and 198 non-HAU living with HIV. Members of each group were matched according to sociodemographic characteristics and CD4 count. Research procedures included validated questionnaires, neuropsychological assessments and a blood sample to obtain BDNF and immune measurements. RESULTS: Hazardous alcohol users showed either significantly lower or significantly higher BDNF levels compared to the Non-hazardous (OR=1,4; 95% CI: 1-2.1, p = 0.003). Therefore, for additional analyses, subjects were categorized based on BDNF values in: Group 1 < 4000, Group 2: 4001-7,999 (reference group), and Group 3 for those >8,000 pg/mL. Groups 1 and 3 performed significantly worse than those in Group 2 in the domains of processing speed, auditory-verbal and visuospatial learning and memory. Multivariate analyses confirmed that HAU and BDNF are significant contributors of HAND. CONCLUSION: Our findings offer novel insights into the relationships between BDNF, and alcohol use among PLWH. Our results also lend support to expanding clinical movement to use BDNF as an intervention target for PLWH, in those with evidence of deficiencies, and highlight the importance of including HAUat the inception of clinical trials.
Assuntos
Complexo AIDS Demência/etiologia , Síndrome da Imunodeficiência Adquirida/complicações , Síndrome da Imunodeficiência Adquirida/imunologia , Alcoolismo/complicações , Fator Neurotrófico Derivado do Encéfalo/sangue , Adulto , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
This study identified personality clusters among a community sample of adolescents of Haitian decent and related cluster subgroup membership to problems in the areas of substance abuse, mental and physical health, family and peer relationships, educational and vocational status, social skills, leisure and recreational pursuits, aggressive behavior-delinquency, and to sexual risk activity. Three cluster subgroups were identified: dependent/conforming (N = 68), high pathology (N = 30); and confident/extroverted/conforming (N = 111). Although the overall sample was relatively healthy based on low average endorsement of problems across areas of expressed concern, significant physical health, mental health, relationship, educational, and HIV risk problems were identified in a MACI identified high psychopathology cluster subgroup. A confident/extraverted/conforming cluster subgroup revealed few problems and appears to reflect a protective style.
Assuntos
Inventário de Personalidade , Adolescente , Comportamento do Adolescente/psicologia , Análise por Conglomerados , Feminino , Florida , Haiti/etnologia , Humanos , MasculinoRESUMO
BACKGROUND: In vitro studies suggest that reducing cholesterol inhibits HIV replication. However, this effect may not hold in vivo, where other factors, such as cholesterol's immunomodulatory properties, may interact. METHODS: Fasting blood samples were obtained on 165 people living with HIV at baseline and after 24 weeks on highly active antiretroviral therapy (HAART). Participants were classified as hypocholesterolemic (HypoCHL; <150 mg/dl) or non-HypoCHL (>150 mg/dl) and were compared on viro-immune outcomes. RESULTS: At baseline, participants with HypoCHL (40%) exhibited lower CD4 (197 +/- 181 vs. 295 +/- 191 cells/mm3, p = 0.02) and CD8 (823 +/- 448 vs. 1194 +/- 598 cells/mm3, p = 0.001) counts and were more likely to have detectable viral loads (OR = 3.5, p = 0.01) than non-HypoCHL controls. After HAART, participants with HypoCHL were twice as likely to experience a virological failure >400 copies (95% CI 1-2.6, p = 0.05) and to exhibit <200 CD4 (95% CI 1.03-2.9, p = 0.04) compared with non-HypoCHL. Low thymic output was related to poorer CD4 cell response in HypoCHL subjects. Analyses suggest a dose-response relationship with every increase of 50 mg/dl in cholesterol related to a parallel rise of 50 CD4 cells. CONCLUSIONS: The study implicates, for the first time, HypoCHL with impaired HAART effectiveness, including limited CD4 repletion by the thymus and suboptimal viral clearance.