Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 25
Filtrar
1.
Artigo em Inglês | MEDLINE | ID: mdl-37917508

RESUMO

This study aims to determine whether performance on the Iowa Gambling Task (IGT), a simulation of risk-taking when faced with loss, is associated with greater frequency of methamphetamine (MA) use and challenges reducing or stopping MA use. The parent mSTUDY is a Los Angeles County-based longitudinal study of substance use and HIV risk in predominately Black/African American and Latinx people assigned male at birth who have sex with men. The IGT was offered for a limited timeframe to mSTUDY participants, of whom 192 consented to and completed this one-time task. Separate random intercept binary logistic regressions tested whether the IGT total score and subscore for Blocks 4 and 5 (last 40 card draws) were associated with the outcomes, testing positive for MA in urine and self-reported inability to control or cease MA use in the past 6 months. Separate random intercept ordered logistic regressions tested whether IGT total score and subscore were associated with self-reported frequency of MA use in past 6 months. Higher IGT subscores for Blocks 4 and 5 (lower risk-taking) were associated with lower odds of testing MA-positive (adjusted odds ratio, AOR = 0.97, 95% CI [0.95, 0.99], p = .025) and less frequent MA use in the past 6 months (AOR = 0.96, 95% CI [0.94, 0.99], p = .006). Higher IGT total scores (lower risk-taking) were also associated with less frequent MA use (AOR = 0.99, 95% CI [0.97, 0.99], p = .038). Findings from this analysis suggest that IGT performance may be a useful indicator of MA use severity in nontreatment-seeking people. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

2.
AIDS ; 37(9): 1441-1449, 2023 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-37070545

RESUMO

OBJECTIVE: To longitudinally evaluate differences in HIV viral suppression (<200 copies/ml) by intersections of race/ethnicity, gender, and psychosocial issues in people with HIV in the Los Angeles County Medical Care Coordination Program. DESIGN: We analyzed 74 649 viral load measurements over 10 184 people with HIV enrolled in the Medical Care Coordination Program between January 1, 2013 and March 1, 2020.Methods: We fit Bayesian logistic hierarchical random effects models to test interactions between gender, race/ethnicity, and a psychosocial acuity score on viral suppression over time from 1 year prior to program enrollment to 24 months after enrollment. RESULTS: The probability of viral suppression declined prior to enrollment, then increased and stabilized by 6 months after enrollment. Black/African American patients with low and moderate psychosocial acuity scores did not achieve the same increase in percentage of viral suppression as those in other racial/ethnic groups. Transgender women with high psychosocial acuity scores took longer (about 1 year) to achieve the same percentage of viral suppression as clients of other gender identities. CONCLUSIONS: Some racial/ethnic and gender disparities in viral suppression persisted after enrollment in the Los Angeles County Medical Care Coordination Program while accounting for psychosocial acuity score, which may be explained by factors not assessed in the program.


Assuntos
Infecções por HIV , Humanos , Feminino , Los Angeles , Teorema de Bayes , Etnicidade , Grupos Raciais
3.
Drug Alcohol Depend ; 243: 109699, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-36603363

RESUMO

BACKGROUND: Starting in 2008, Vietnam's national MMT program expanded quickly, but it is struggling with increasing attrition rates and poor adherence among patients. Several studies have reported on MMT retention and adherence, but no overview has yet been published. The objective of this study is to fill that gap and to review factors associated with retention and adherence in MMT in Vietnam. METHODS: A systematic search was conducted using databases of literature - Pubmed, Cochrane, Scopus, Academic search premiere, and SoINDEX. Peer-reviewed empirical studies with full text in English discussing retention attrition and adherence regarding MMT in Vietnam were selected. The results were synthesized using qualitative methods. RESULTS: Adherence and retention rates varied among the 11 included studies. In general, patients in mountainous provinces had lower adherence and retention rates than those in big cities. Retention rates decreased with the studies' follow-up period and had a downward trend over time. Factors associated with adherence and retention can be classified into three groups: individual, community, and institutional factors. Important individual factors areage, education, awareness of MMT and HIV, and co-occurring disorders and comorbidities. Stigma is the major community risk factor, and methadone daily dose, the distance between home and clinic, and clinic's service hours are the three most important institutional factors. CONCLUSIONS: The literature reviewed identifies important factors associated with MMT adherence and retention in Vietnam. The findings suggest further research exploring both subjective and objective factors and more policies to remove social and structural barriers to enhance treatment outcomes.


Assuntos
Metadona , Tratamento de Substituição de Opiáceos , Humanos , Vietnã , Tratamento de Substituição de Opiáceos/métodos , Metadona/uso terapêutico , Fatores de Risco , Cooperação e Adesão ao Tratamento
4.
Addiction ; 118(4): 750-762, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36401591

RESUMO

It is estimated that a majority of people who use psychostimulants, particularly methamphetamine (MA) and cocaine, experience withdrawal upon abstinence from sustained use. This review of clinical research reports the evidence regarding biomedical and behavioral treatments for psychostimulant withdrawal symptoms. It provides a framework for clinicians and scientists to increase impact on attenuating MA and cocaine withdrawal during initial and sustained abstinence. Articles reviewed included reports of controlled clinical trials (randomized or non-randomized) reporting at least one withdrawal symptom among the outcomes or specifically studying patients in withdrawal. Potential efficacy for MA withdrawal is noted for a few medications (mirtazapine, naltrexone, bupropion) and repetitive transcranial magnetic stimulation during acute (first week), early protracted (weeks 2-4) and late protracted (> 4 weeks) withdrawal phases. Topiramate shows mixed evidence of efficacy for cocaine withdrawal. In general, there is inconsistent signal for biomedical and behavioral treatments on MA and cocaine withdrawal.


Assuntos
Transtornos Relacionados ao Uso de Anfetaminas , Estimulantes do Sistema Nervoso Central , Cocaína , Metanfetamina , Síndrome de Abstinência a Substâncias , Humanos , Estimulantes do Sistema Nervoso Central/uso terapêutico , Metanfetamina/efeitos adversos , Síndrome de Abstinência a Substâncias/tratamento farmacológico , Transtornos Relacionados ao Uso de Anfetaminas/tratamento farmacológico
5.
Drug Alcohol Depend Rep ; 5: 100097, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36193108

RESUMO

Background: Methamphetamine (MA) use increased during COVID-19, with men who have sex with men (MSM) exhibiting 3-fold greater use than heterosexual men. Understanding links between reported MA use and COVID-19 prevention behaviors among MSM can inform current transmission risks for HIV, Monkeypox, and other infectious diseases. Methods: This study assesses relationships between self-reported pattern of MA use (past six months; past two weeks) and reported COVID-19 preventive behaviors, adjusting for participant characteristics (HIV serostatus, race/ethnicity, employment and housing stability), in a cohort of ethnically diverse MSM in Los Angeles, California, between April 1 and September 30, 2020. Results: Compared to those who reported no MA use, MSM who reported weekly or more MA use in the past six months were significantly less likely to use COVID-19 protective behaviors of physical distancing (61.8% vs. 81.6%; AOR = 0.39, 95% CI [0.19, 0.81]), of avoiding public transportation (34.5% vs. 60.3%; AOR = 0.42, 95% CI [0.21, 0.83]) and of avoiding traveling overall (32.7% vs. 62.6%; AOR = 0.32, 95% CI [0.16, 0.63]). Parallel findings were observed in analyses of past two-week reported MA use and COVID-19 protective behaviors. Conclusion: Findings highlight ways in which reported MA use frequency links with avoidance of reported preventive behaviors for COVID-19 in urban diverse MSM. Findings also provide evidence to guide public health interventions in future outbreaks of COVID-19 and other infectious diseases among MSM.

6.
Ann Behav Med ; 56(9): 900-908, 2022 08 30.
Artigo em Inglês | MEDLINE | ID: mdl-36039526

RESUMO

BACKGROUND: Social genomics has demonstrated altered inflammatory and type I interferon (IFN) gene expression among people experiencing chronic social adversity. Adverse social experiences such as discrimination and violence are linked to stimulant misuse and HIV, conditions that dysregulate inflammatory and innate antiviral responses, leading to increased HIV viral replication and risk of chronic diseases. PURPOSE: We aimed to determine whether methamphetamine (MA) use, unsuppressed HIV viral load (VL) (≥200 c/mL), and experienced intimate partner violence (IPV) (past 12 months) predicted inflammatory and type I IFN gene expression in HIV-positive Black and Latinx men who have sex with men (MSM). METHODS: Participants were 147 HIV-positive Black and Latinx MSM recruited from the mSTUDY, a cohort of 561 MSM aged 18-45 in Los Angeles, CA, of whom half are HIV-positive and substance-using. Transcriptomic measures of inflammatory and type I IFN activity were derived from RNA sequencing of peripheral blood mononuclear cells and matched to urine drug tests, VL, and survey data across two time points 12 months apart. Analysis used linear random intercept modeling of MA use, unsuppressed VL, and experienced IPV on inflammatory and type I IFN expression. RESULTS: In adjusted models, MA use predicted 27% upregulated inflammatory and 31% upregulated type I IFN expression; unsuppressed VL predicted 84% upregulated type I IFN but not inflammatory expression; and experienced IPV predicted 31% upregulated inflammatory and 26% upregulated type I IFN expression. CONCLUSIONS: In Black and Latinx MSM with HIV, MA use, unsuppressed VL, and experienced IPV predicted upregulated social genomic markers of immune functioning.


Assuntos
Infecções por HIV , Metanfetamina , Minorias Sexuais e de Gênero , Genômica , Homossexualidade Masculina , Humanos , Leucócitos Mononucleares , Masculino , Metanfetamina/efeitos adversos , Carga Viral
7.
Drug Alcohol Depend ; 232: 109320, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-35093681

RESUMO

OBJECTIVE: This study tested the hypothesis that reported frequency of methamphetamine use is significantly associated with measures of social adversity, sexual risk behaviors, chronic health conditions, bacterial STIs and HIV-related factors among diverse men who have sex with men (MSM). METHODS: Data were 2428 visits from 515 mSTUDY participants (261 people living with HIV; 254 HIV-negative). mSTUDY is an ongoing longitudinal study of racially/ethnically diverse MSM in Los Angeles County. Logistic regression with random intercepts modeled associations between self-reported past 6-month methamphetamine use (none, monthly or less, weekly or more) with reported adverse social outcomes (unemployment, housing instability, intimate partner violence), sexual risk behaviors, chronic health conditions, and biomarkers of bacterial STIs (chlamydia, gonorrhea, or syphilis) and detectable HIV viral load (among HIV-positive). Models controlled for confirmed HIV-serostatus. RESULTS: Prevalence of reported monthly or less methamphetamine use was 19%; weekly or more use was 18%. Multivariable models showed escalating odds of adverse social outcomes and sexual risk behaviors (p's < 0.001) with increased methamphetamine use frequency. Frequency of methamphetamine use associated with increased odds of a positive bacterial STI test (p < .001), detectable viral load (in HIV-positive participants) (p < .001), renal condition (p = .047), neurological condition (p = .008), and psychological condition (p = .001). CONCLUSIONS: Findings show cross-sectional links between reported methamphetamine use frequency and adverse social and health outcomes among MSM in Los Angeles and suggest there may be fewer social and physical health harms corresponding to less frequent use of methamphetamine in this group.


Assuntos
Infecções por HIV , Metanfetamina , Minorias Sexuais e de Gênero , Estudos Transversais , Infecções por HIV/epidemiologia , Homossexualidade Masculina , Humanos , Estudos Longitudinais , Los Angeles/epidemiologia , Masculino , Metanfetamina/efeitos adversos , Prevalência , Assunção de Riscos , Comportamento Sexual , Parceiros Sexuais
8.
J Subst Abuse Treat ; 132: 108461, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34098204

RESUMO

OBJECTIVES: To assess the severity of methamphetamine use among methadone maintenance treatment (MMT) patients in Vietnam with opioid use disorder and concurrent methamphetamine use, and to identify risk factors associated with higher severity of methamphetamine use. METHODS: We used survey data and medical record abstractions from 428 people with opioid use disorder who also use methamphetamine while partaking in methadone treatment in five clinics in Hanoi, Vietnam. We used multinomial logistic regression to assess other risk factors and problems associated with high methamphetamine use severity. RESULTS: Those who reported injecting heroin in the past 3 months (AOR = 4.05, 95% CI [1.30, 12.55], p = 0.02), having a longer history of lifetime heroin use (AOR = 1.13, 95% CI [1.03, 1.24], p < 0.01), and having higher cravings (AOR = 1.97, 95% CI [1.31, 2.98], p < 0.01) and fatigue (AOR = 1.25, 95% CI [0.96, 1.61], p = 0.09) related to methamphetamine withdrawal had greater odds of high methamphetamine use severity. One of five clinics had a significantly higher percentage of methamphetamine use severity than others. CONCLUSION: Successful MMT in patients with opioid use disorder in Vietnam may additionally require methamphetamine-focused screening and intervention.


Assuntos
Metanfetamina , Transtornos Relacionados ao Uso de Opioides , Humanos , Metadona/uso terapêutico , Metanfetamina/efeitos adversos , Tratamento de Substituição de Opiáceos , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Vietnã/epidemiologia
9.
J Assoc Nurses AIDS Care ; 33(1): 54-62, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34939988

RESUMO

ABSTRACT: The goals and strategies of Black sexual minority men living with HIV (BSMMLWH) who achieve viral suppression require further investigation. This study explored treatment adherence strategies among BSMMLWH with sustained viral suppression. We conducted 27 in-depth qualitative interviews with BSMMLWH in Baltimore, Maryland, and Los Angeles, California, between December 2018 and May 2019. Interviews included questions guided by Positive Deviance and Life Course theoretical frameworks regarding multilevel factors and explicit strategies for antiretroviral therapy adherence. Themes regarding intentional, age group-specific strategies such as using technology (among younger men) and taking HIV medications with other daily pills (among older men) were identified. Participants also reported symbiotic goals and values that encouraged adherence, such as having a desire to live, strong familial relationships with clinicians, and support networks. Identifying personal goals and having supportive clinical and social relationships could be key to improving treatment adherence and viral suppression among BSMMLWH.


Assuntos
Infecções por HIV , Minorias Sexuais e de Gênero , Idoso , Baltimore , Infecções por HIV/tratamento farmacológico , Humanos , Los Angeles , Masculino , Adesão à Medicação , Cooperação e Adesão ao Tratamento
10.
Public Health Nutr ; 24(13): 3977-3985, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34103117

RESUMO

OBJECTIVE: To understand the relationship between drug use, food insecurity (FI) and mental health among men who have sex with men (MSM). DESIGN: Cohort study (2014-2019) with at least one follow-up. SETTING: Visits at 6-month intervals included self-assessment for FI and depressive symptoms. Urine testing results confirmed drug use. Factors associated with FI were assessed using multiple logistic regression with random effects for repeated measures. General structural equation modelling tested whether FI mediates the relationship between drug use and depressive symptoms. PARTICIPANTS: Data were from HIV-positive and high-risk HIV-negative MSM in Los Angeles, CA (n 431; 1192 visits). RESULTS: At baseline, FI was reported by 50·8 % of participants, depressive symptoms in 36·7 % and 52·7 % of urine screening tests were positive for drugs (i.e. marijuana, opioids, methamphetamine, cocaine and ecstasy). A positive drug test was associated with a 96 % increase in the odds of being food insecure (95 % CI 1·26, 3·07). Compared to those with high food security, individuals with very low food security have a nearly sevenfold increase in the odds of reporting depressive symptoms (95 % CI 3·71, 11·92). Findings showed 14·9 % of the association between drug use (exposure) and depressive symptoms (outcome) can be explained by FI (mediator). CONCLUSION: The prevalence of FI among this cohort of HIV-positive and high-risk HIV-negative MSM was high; the association between drug use and depressive symptoms was partially mediated by FI. Findings suggest that enhancing access to food and nutrition may improve mood in the context of drug use, especially among MSM at risk for HIV transmission.


Assuntos
Infecções por HIV , Preparações Farmacêuticas , Minorias Sexuais e de Gênero , Estudos de Coortes , Depressão/epidemiologia , Depressão/etiologia , Insegurança Alimentar , Abastecimento de Alimentos , Infecções por HIV/epidemiologia , Homossexualidade Masculina , Humanos , Los Angeles/epidemiologia , Masculino
11.
J Immigr Minor Health ; 23(5): 993-1000, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33575977

RESUMO

Mindfulness-based interventions (MBIs) may offer a means for Latinx families to ameliorate stress, enhance emotion regulation, and foster social support. We assessed pilot data from Latinx parents in Eastside Los Angeles (n = 27) matched with their children aged 10-16 (n = 32) to determine whether participation in a community-derived MBI was associated with greater improvements in dispositional mindfulness, perceived stress, emotion regulation, and family social support compared to a control condition. Compared to the control group, parents in the MBI group showed greater reductions in perceived stress scale (PSS) scores (B = - 2.94, 95% CI [- 5.58, - 0.39], p = 0.029), while their children reported greater increases in perceived social support from family (B = 2.32, 95% CI [0.26, 4.38], p = 0.027). Findings show a community-derived MBI may improve stress in Latinx parents and social support for their children.


Assuntos
Atenção Plena , Criança , Humanos , Los Angeles , Pais , Apoio Social
12.
J Acquir Immune Defic Syndr ; 84(4): 387-395, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-32598118

RESUMO

BACKGROUND: In March of 2013, the Los Angeles County (LAC) Division of HIV and STD Programs implemented a clinic-based Medical Care Coordination (MCC) Program to increase viral suppression (VS) (<200 c/mL) among people living with HIV (PLWH) at high risk for poor health outcomes. OBJECTIVE: This study aimed to estimate trajectories of VS and to assess whether these trajectories differed by stimulant use, housing instability, and depressive symptom severity as reported by PLWH participating in MCC. METHODS: Data represent 6408 PLWH in LAC receiving services from the MCC Program and were obtained from LAC HIV surveillance data matched to behavioral assessments obtained across 35 Ryan White Program clinics participating in MCC. Piecewise mixed-effects logistic regression with a random intercept estimated probabilities of VS from 12 months before MCC enrollment through 36 months after enrollment, accounting for time by covariate interactions for 3 comorbid conditions: housing instability, stimulant use, and depressive symptoms. RESULTS: The overall probability of VS increased from 0.35 to 0.77 within the first 6 months in the MCC Program, and this probability was maintained up to 36 months after enrollment. Those who reported housing instability, stimulant use, or multiple comorbid conditions did not achieve the same probability of VS by 36 months as those with none of those comorbidities. CONCLUSIONS: Findings suggest that MCC improved the probability of VS for all patient groups regardless of the presence of comorbidities. However, those with comorbid conditions will still require increased support from patient-centered programs to address disparities in VS.


Assuntos
Instituições de Assistência Ambulatorial/estatística & dados numéricos , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Avaliação de Programas e Projetos de Saúde , Adulto , Comorbidade , Feminino , Infecções por HIV/psicologia , Pessoas Mal Alojadas/estatística & dados numéricos , Humanos , Estudos Longitudinais , Los Angeles , Masculino , Minorias Sexuais e de Gênero/estatística & dados numéricos , Fatores Socioeconômicos , Resultado do Tratamento
13.
AIDS Behav ; 24(11): 3192-3204, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32350774

RESUMO

The effectiveness of pre-exposure prophylaxis (PrEP) against HIV acquisition depends on treatment adherence; however, within-person associations between levels of PrEP adherence and engagement in condomless sex have not been well studied. In the context of a demonstration project, 372 men who have sex with men received once-daily PrEP and completed six study visits over 48 weeks. Two-part growth mixture modeling was used to examine the longitudinal trajectory of condomless anal intercourse (CAI) and self-reports of PrEP adherence, controlling for relevant covariates. Over time, greater PrEP adherence was contemporaneously associated with both a higher likelihood of engaging in any CAI and with a greater number of CAI acts. Substance use was also associated with a higher likelihood of engaging in CAI. Contemporaneous associations between self-reported PrEP adherence and CAI suggest that adherence behaviors may be motivated by the desire to mitigate risk of HIV infection; however, exact directionality is unknown.


RESUMEN: La eficacia de la profilaxis Pre-exposición (PrEP) contra la adquisición del VIH depende de la adherencia al tratamiento; sin embargo, las asociaciones dentro de la persona entre los niveles de adherencia a PrEP y la participación en el sexo sin condón no han sido bien estudiadas. En un proyecto de demostración, 372 hombres que tienen relaciones sexuales con hombres recibieron PrEP diariamente y completaron seis visitas de estudio durante 48 semanas. El modelado de mezclas de crecimiento en dos partes se utilizó para examinar la trayectoria longitudinal de las relaciones sexuales anales sin condonación (CAI) y los autoinformes de adherencia a PrEP, controlando las covariables pertinentes. Con el tiempo, una mayor adherencia a PrEP se asoció a la misma vez con una mayor probabilidad de participar en cualquier CAI y tambien con un mayor número de CAI. El consumo de sustancias también se asoció con una mayor probabilidad de participar en CAI. Las asociaciones contemporáneas entre la adherencia a PrEP autoinformada y CAI sugieren que los comportamientos de adherencia pueden estar motivados por el deseo de mitigar el riesgo de infección por el VIH; sin embargo, se desconoce la direccionalidad exacta.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Infecções por HIV/tratamento farmacológico , Homossexualidade Masculina/estatística & dados numéricos , Adesão à Medicação/estatística & dados numéricos , Profilaxia Pré-Exposição/métodos , Comportamento Sexual/estatística & dados numéricos , Sexo sem Proteção/estatística & dados numéricos , Adulto , Fármacos Anti-HIV/uso terapêutico , Preservativos , Infecções por HIV/prevenção & controle , Homossexualidade Masculina/psicologia , Humanos , Masculino , Autorrelato , Minorias Sexuais e de Gênero , Adulto Jovem
14.
J Urban Health ; 97(5): 692-703, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32020466

RESUMO

We assessed whether disclosure of HIV status is significantly associated with reported HIV sexual risk behaviors among HIV positive Black/African American men who have sex with men (MSM) (Black MSM) in six cities in the USA. Participants from the BROTHERS (HIV Prevention Trials Network [HPTN 061]) study focused on assessing the feasibility and acceptability of a multifaceted HIV prevention intervention to reduce HIV infections among Black MSM enrolled between July 2009 and October 2010. All participants completed a behavioral assessment using an audio computer-assisted self-interview that included questions about HIV status disclosure, HIV sexual risk behaviors, and other behaviors. Biological samples were also collected. This analysis focused on baseline data of HIV-positive Black MSM in the HPTN 061 study. Of the 143 HIV-positive Black MSM (majority ≥ 35 years of age) included in this analysis, 58% reported disclosing their HIV status to their last male anal sex partner. Forty-three percent and 42% reported condomless insertive and receptive anal intercourse respectively with their last male partner; whereas, 17% and 18% of the sample engaged in condomless insertive and receptive anal intercourse with a serodiscordant/unknown status partner, respectively. In multivariable logistic regression models, there was no statistically significant association between HIV status disclosure and condomless insertive anal intercourse (aOR = 0.35, 95% CI 0.11, 1.08; p = 0.30), condomless receptive anal intercourse (aOR = 2.48, 95% CI 0.94, 6.52; p = 0.20), or condomless receptive anal intercourse with a serodiscordant/unknown status partner (aOR = 0.55, 95% CI 0.20, 1.49; p = 0.45). However, HIV status disclosure was significantly associated with lower odds of reporting condomless insertive anal intercourse with a serodiscordant/unknown status partner (aOR = 0.19, 95% CI 0.06, 0.68; p ≤ 0.01). Among this multi-city sample of HIV-positive Black MSM, disclosure of HIV status was common and associated with lower HIV sexual risk behaviors. These findings should motivate and guide research to develop prevention messages to increase HIV status disclosures.


Assuntos
Negro ou Afro-Americano/psicologia , Revelação/estatística & dados numéricos , Infecções por HIV/psicologia , Infecções por HIV/transmissão , Homossexualidade Masculina/psicologia , Assunção de Riscos , Comportamento Sexual/psicologia , Adolescente , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Cidades/epidemiologia , Cidades/estatística & dados numéricos , Infecções por HIV/epidemiologia , Homossexualidade Masculina/estatística & dados numéricos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Comportamento Sexual/estatística & dados numéricos , Estados Unidos/epidemiologia , Adulto Jovem
15.
Brain Behav Immun ; 83: 120-125, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31563693

RESUMO

Men who have sex with men (MSM) experience high rates of homophobic victimization, which is linked to myriad chronic physical and mental health disparities. Social adversity such as rejection, isolation, and racial discrimination can induce a conserved transcriptional response to adversity (CTRA) involving upregulation of proinflammatory genes and downregulation of type I interferon and antibody synthesis genes. This study specifically examines whether homophobic victimization is associated with expression of CTRA profiles in Black and Latino MSM living in Los Angeles. Analyses linked behavioral survey data with quantified RNA from leukocytes from blood samples of 70 participants over 12 months. CTRA gene expression was increased by 3.1-fold in MSM who experienced homophobic victimization while adjusting for major leukocyte subsets and sociodemographics. Accounting for all these factors, CTRA gene expression was significantly enhanced in MSM who identified as Black compared to Latino. Our findings identify experiences of homophobic victimization as drivers of inflammatory and type I interferon gene expression profiles, which can contribute to physical and mental health challenges in Black and Latino MSM.


Assuntos
Negro ou Afro-Americano/genética , Hispânico ou Latino/genética , Homofobia , Homossexualidade Masculina/genética , Homossexualidade Masculina/psicologia , Minorias Sexuais e de Gênero/psicologia , Estresse Psicológico/psicologia , Transcriptoma , Adolescente , Adulto , Homofobia/estatística & dados numéricos , Homossexualidade Masculina/estatística & dados numéricos , Humanos , Los Angeles , Masculino , Pessoa de Meia-Idade , Minorias Sexuais e de Gênero/estatística & dados numéricos , Adulto Jovem
16.
Drug Alcohol Depend ; 206: 107776, 2020 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-31812878

RESUMO

BACKGROUND: Preclinical studies suggest that the non-selective phosphodiesterase inhibitor, Ibudilast (IBUD) may contribute to the treatment of methamphetamine (METH) use disorder through the attenuation of METH-induced inflammatory markers such as adhesion molecules, sICAM-1 and sVCAM-1, and cytokines, IL-6 and TNF-α. OBJECTIVE: The present study aimed to test whether treatment with IBUD can attenuate peripheral markers of inflammation during a METH challenge in an inpatient clinical trial of 11 patients. METHODS: This trial followed a randomized, within-subjects crossover design where participants received a METH challenge, during which five participants were treated with placebo then with IBUD, while the remaining six participants were treated with IBUD prior to placebo. Mixed effects regression modeled changes in peripheral markers of inflammation-sICAM-1, sVCAM-1, TNF-α, IL-6, MIF, and cathepsin D-by treatment condition, with measurements at baseline, 60 min post-METH infusion, and 360 min post-METH infusion. RESULTS: While on placebo, sICAM-1, sVCAM-1, and cathepsin D significantly increased by 60 min post-METH infusion, while IL-6 significantly increased 360 min post-METH infusion. Treatment with IBUD significantly reduced METH-induced levels of sICAM-1, sVCAM-1, and cathepsin D at 60 min post-METH infusion. CONCLUSIONS: Our findings demonstrate that IBUD attenuated acute pro-inflammatory effects of METH administration, which may have implications for treatment of METH use disorder.


Assuntos
Transtornos Relacionados ao Uso de Anfetaminas/sangue , Transtornos Relacionados ao Uso de Anfetaminas/tratamento farmacológico , Mediadores da Inflamação/antagonistas & inibidores , Mediadores da Inflamação/sangue , Metanfetamina/efeitos adversos , Piridinas/uso terapêutico , Adulto , Animais , Estimulantes do Sistema Nervoso Central/administração & dosagem , Estimulantes do Sistema Nervoso Central/efeitos adversos , Estudos Cross-Over , Feminino , Humanos , Infusões Intravenosas , Masculino , Metanfetamina/administração & dosagem , Pessoa de Meia-Idade , Inibidores de Fosfodiesterase/farmacologia , Inibidores de Fosfodiesterase/uso terapêutico , Piridinas/farmacologia
17.
Psychol Sex Orientat Gend Divers ; 6(4): 408-419, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32104720

RESUMO

Racial/ethnic and sexual minorities may experience excess stress from social prejudice and structural disadvantage, which is associated with family relationship problems and poorer psychosocial health. There is increasing evidence that certain positive psychological processes can attenuate these negative outcomes at the individual and interpersonal levels; however, the mechanisms of these effects remain poorly understood. Based on previous research and two extant conceptual frameworks, we constructed a preliminary model of how dispositional mindfulness operated in the context of minority stress among Latino/a sexual minority young adults and their families. We then conducted semi-structured interviews in a life history format with 21 Latino/a sexual minority young adults and 15 family members to test our preliminary model and refine it. We mixed content analysis and grounded theory techniques, whereby we initially used deductive coding with pre-established codes based on our preliminary model, and subsequently used inductive coding to account for novel categories in the interview data that could not be explained by the preliminary model. The refined model revealed pathways by which five constructs of dispositional mindfulness (act with awareness, observe, describe, non-judge, non-react) buffered negative effects of minority stress on psychosocial health in young adults, and were qualitatively associated with compassion, acceptance of sexual minorities, and closeness among family members. Young adults reporting deficiencies in mindfulness reported greater suffering and negative coping related to minority stress. Our model provides a framework to explore modes of resilience and adaptation to minority stress, and offers a basis for further refinement in other affected populations.

18.
Drug Alcohol Depend ; 192: 179-185, 2018 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-30266002

RESUMO

BACKGROUND: Men who have sex with men with histories of homophobic victimization bear heightened risk of unstable housing and methamphetamine use. However, it is unclear whether unstable housing explains the link between homophobic victimization and methamphetamine use in this group. The present study aims to test associations between homophobic victimization, unstable housing, and recent methamphetamine use across 24 months in a cohort of men of color who have sex with men (MoCSM). METHODS: Our analysis stems from data of 1342 person-visits from 401 MoCSM participating in an ongoing cohort study. We performed a lagged multilevel negative binominal regression to test the association between past homophobic victimization and recent unstable housing, and a lagged multilevel ordered logistic regression to test the association between past homophobic victimization recent methamphetamine use. We then performed a path analysis to test whether recent unstable housing mediates the association between past homophobic victimization and recent methamphetamine use. RESULTS: Findings showed homophobic victimization associated significantly with increased odds of unstable housing (IRR = 1.70, 95% CI [1.35, 2.14], p < 0.001) and recent methamphetamine use (OR = 1.40, 95% CI [1.15, 1.71], p = 0.001). Mediation analysis indicated that past homophobic victimization was indirectly associated with recent methamphetamine use via unstable housing (OR = 1.06 (95% CI [1.01, 1.11], p = 0.010). CONCLUSION: Our findings suggest that homophobic victimization and unstable housing should be addressed alongside treatment and prevention of methamphetamine use in MoCSM.


Assuntos
Transtornos Relacionados ao Uso de Anfetaminas/psicologia , Negro ou Afro-Americano/psicologia , Vítimas de Crime/psicologia , Hispânico ou Latino/psicologia , Homossexualidade Masculina/psicologia , Habitação , Metanfetamina/efeitos adversos , Adulto , Transtornos Relacionados ao Uso de Anfetaminas/economia , Transtornos Relacionados ao Uso de Anfetaminas/epidemiologia , Estudos de Coortes , Efeitos Psicossociais da Doença , Vítimas de Crime/economia , Habitação/economia , Humanos , Estudos Longitudinais , Masculino , Adulto Jovem
19.
Int Psychogeriatr ; 30(3): 431-435, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-28766467

RESUMO

The aim of this analysis was to test if changes in insomnia symptoms and global sleep quality are associated with coinciding changes in depressed mood among older adults. We report on results yielded from secondary analysis of longitudinal data from a clinical trial of older adults (N = 49) aged 55 to 80 years who reported at least moderate levels of sleep problems. All measures were collected at baseline and after the trial ten weeks later. We computed change scores for two separate measures of disturbed sleep, the Athens Insomnia Scale (AIS) and the Pittsburgh Sleep Quality Index (PSQI), and tested their association with change in depressed mood (Beck Depression Inventory-II; BDI-II) in two separate linear regression models adjusted for biological covariates related to sleep (sex, age, body mass index, and NF-κB as a biological marker previously correlated with insomnia and depression). Change in AIS scores was associated with change in BDI-II scores (ß = 0.38, p < 0.01). Change in PSQI scores was not significantly associated with change in BDI-II scores (ß = 0.17, p = 0.26). Our findings suggest that improvements over ten weeks in insomnia symptoms rather than global sleep quality coincide with improvement in depressed mood among older adults.


Assuntos
Afeto/fisiologia , Depressão/diagnóstico , Qualidade de Vida , Distúrbios do Início e da Manutenção do Sono/diagnóstico , Transtornos do Sono-Vigília/diagnóstico , Sono/fisiologia , Idoso , Idoso de 80 Anos ou mais , Depressão/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica , Distúrbios do Início e da Manutenção do Sono/epidemiologia , Transtornos do Sono-Vigília/epidemiologia , Estados Unidos/epidemiologia
20.
Arch Sex Behav ; 47(1): 169-181, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-27115618

RESUMO

African-American men who have sex with men and women (MSMW) are among those most heavily impacted by HIV in the United States, and those who have histories of incarceration are at further risk of infection. The Men in Life Environments (MILE) HIV prevention intervention was developed to provide culturally appropriate skills-based education and support for African-American MSMW with recent histories of incarceration. The MILE's conceptual framework was informed by three theories: Theory of Reasoned Action and Planned Behavior, Critical Thinking and Cultural Affirmation Model, and Empowerment Theory. The theory-based framework posits that improving racial pride is crucial in building self-efficacy and intentions that in turn promote health-protective behaviors. Therefore, our study aimed to assess whether baseline associations between racial pride and condom use self-efficacy, intentions, and behaviors among African-American MSMW with histories of incarceration align with our conceptual model. We report data on 212 participants recruited from Los Angeles County Sheriff's Department Men's Central Jail and the local community. Using structural equation modeling, we tested two separate models: one with female sexual partners and one with male sexual partners, while stratifying by participant's HIV status. Only among HIV-negative participants was greater racial pride associated with less condomless intercourse with men. In this group, greater self-efficacy and intentions-but not racial pride-predicted less condomless intercourse with women. Our findings suggest that racial pride is an important factor to address in HIV prevention interventions for post-incarcerated African-American MSMW.


Assuntos
Bissexualidade/etnologia , Negro ou Afro-Americano/psicologia , Preservativos/estatística & dados numéricos , Sexo Seguro/estatística & dados numéricos , Autoeficácia , Identificação Social , Adolescente , Adulto , Bissexualidade/psicologia , Bissexualidade/estatística & dados numéricos , Coito , Emoções , Feminino , Infecções por HIV/etnologia , Infecções por HIV/prevenção & controle , Infecções por HIV/psicologia , Humanos , Intenção , Los Angeles , Masculino , Pessoa de Meia-Idade , Prisioneiros , Estados Unidos , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...