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1.
AIDS Behav ; 20(2): 292-303, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26319131

RESUMEN

Substance-abusing pregnant and postpartum women are less likely to maintain consistent condom use and drug and alcohol abstinence, which is particularly concerning in high HIV-prevalence areas. Data from 224 pregnant and postpartum women in substance abuse treatment were analyzed to examine effects of history of substance use, child abuse, and mental health problems on current substance use and condom-use barriers. Mediators were depression, relationship power and social support. Most participants (72.9 %) evidenced current depression. Less social support (-0.17, p < 0.05) and relationship power (-0.48, p < 0.001), and greater depression (-0.16, p < 0.05) predicted more condom-use barriers. History of mental health problems predicted condom-use barriers, mediated by recent depression and relationship power (0.15, p < 0.001). These findings suggest depression and diminished relationship power limit highest-risk women's ability to negotiate condom use and abstain from substance use, increasing their risk of acute HIV infection and vertical transmission.


Asunto(s)
Adultos Sobrevivientes del Maltrato a los Niños/psicología , Condones/estadística & datos numéricos , Depresión/psicología , Infecciones por VIH/epidemiología , Mujeres Embarazadas/psicología , Trastornos Relacionados con Sustancias/rehabilitación , Adolescente , Adulto , Adultos Sobrevivientes del Maltrato a los Niños/estadística & datos numéricos , Niño , Depresión/epidemiología , Femenino , Humanos , Negociación , Periodo Posparto , Embarazo , Sexo Seguro , Apoyo Social , Trastornos Relacionados con Sustancias/psicología
2.
Prev Sci ; 17(5): 544-53, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-27056632

RESUMEN

AMP! (Arts-based, Multiple component, Peer-education) is an HIV intervention developed for high school adolescents. AMP! uses interactive theater-based scenarios developed by trained college undergraduates to deliver messages addressing HIV/STI prevention strategies, healthy relationships, and stigma reduction towards people living with HIV/AIDS. We used a pre-test/post-test, control group study design to simultaneously assess intervention effect on ninth grade students in an urban county in California (N = 159) and a suburban county in North Carolina (N = 317). In each location, the control group received standard health education curricula delivered by teachers; the intervention group received AMP! in addition to standard health education curricula. Structural equation modeling was used to determine intervention effects. The post-test sample was 46 % male, 90 % self-identified as heterosexual, 32 % reported receiving free or reduced lunch, and 49 % White. Structural models indicated that participation in AMP! predicted higher scores on HIV knowledge (p = 0.05), HIV awareness (p = 0.01), and HIV attitudes (p = 0.05) at the post-test. Latent means comparison analyses revealed post-test scores were significantly higher than pre-test scores on HIV knowledge (p = 0.001), HIV awareness (p = 0.001), and HIV attitudes (p = 0.001). Further analyses indicated that scores rose for both groups, but the post-test scores of intervention participants were significantly higher than controls (HIV knowledge (p = 0.01), HIV awareness (p = 0.01), and HIV attitudes (p = 0.05)). Thus, AMP!'s theater-based approach shows promise for addressing multiple adolescent risk factors and attitudes concerning HIV in school settings.


Asunto(s)
Infecciones por VIH , Conocimientos, Actitudes y Práctica en Salud , Salud Reproductiva , Adolescente , California , Drama , Femenino , Humanos , Masculino , South Carolina
3.
BMC Emerg Med ; 14: 16, 2014 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-25038628

RESUMEN

BACKGROUND: The Disaster Emergency Medical Personnel System (DEMPS) program provides a system of volunteers whereby active or retired Department of Veterans Affairs (VA) personnel can register to be deployed to support other VA facilities or the nation during national emergencies or disasters. Both early and ongoing volunteer training is required to participate. METHODS: This study aims to identify factors that impact willingness to deploy in the event of an emergency. This analysis was based on responses from 2,385 survey respondents (response rate, 29%). Latent variable path models were developed and tested using the EQS structural equations modeling program. Background demographic variables of education, age, minority ethnicity, and female gender were used as predictors of intervening latent variables of DEMPS Volunteer Experience, Positive Attitude about Training, and Stress. The model had acceptable fit statistics, and all three intermediate latent variables significantly predicted the outcome latent variable Readiness to Deploy. RESULTS: DEMPS Volunteer Experience and a Positive Attitude about Training were associated with Readiness to Deploy. Stress was associated with decreased Readiness to Deploy. Female gender was negatively correlated with Readiness to Deploy; however, there was an indirect relationship between female gender and Readiness to Deploy through Positive Attitude about Training. CONCLUSIONS: These findings suggest that volunteer emergency management response programs such as DEMPS should consider how best to address the factors that may make women less ready to deploy than men in order to ensure adequate gender representation among emergency responders. The findings underscore the importance of training opportunities to ensure that gender-sensitive support is a strong component of emergency response, and may apply to other emergency response programs such as the Medical Reserve Corps and the American Red Cross.


Asunto(s)
Actitud del Personal de Salud , United States Department of Veterans Affairs/organización & administración , Voluntarios/educación , Voluntarios/psicología , Adolescente , Adulto , Estudios Transversales , Planificación en Desastres , Urgencias Médicas , Femenino , Humanos , Masculino , Persona de Mediana Edad , Autoeficacia , Factores Sexuales , Encuestas y Cuestionarios , Enseñanza , Estados Unidos , Adulto Joven
4.
AIDS Behav ; 17(4): 1221-30, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23338563

RESUMEN

Haiti has the highest number of individuals living with HIV in the Caribbean. Due to Haiti's resource-poor environment and inadequate mental health and substance abuse services, adherence to antiretroviral therapy (ART) may be especially difficult. This study examined associations among demographics, maladaptive coping, partner conflict, alcohol problems, depression, and negative attitudes about medications and their impact on adherence among 194 HIV-positive Haitians. In a mediated directional structural equation model, depression and negative attitudes about ART directly predicted poorer adherence. Greater partner conflict, maladaptive coping and alcohol problems predicted more depression. Maladaptive coping predicted a negative attitude about ART. Alcohol problems predicted partner conflict and maladaptive coping. Significant indirect effects on adherence mediated through both depression and negative attitudes about ART include negative effects of female gender, alcohol problems and maladaptive coping. Results highlight the importance of integrated care for depression, alcohol use and other psychosocial problems to increase ART adherence.


Asunto(s)
Terapia Antirretroviral Altamente Activa/psicología , Depresión/psicología , Infecciones por VIH/tratamiento farmacológico , Cumplimiento de la Medicación/psicología , Trastornos Relacionados con Sustancias/psicología , Adaptación Psicológica , Adulto , Antirretrovirales/uso terapéutico , Depresión/complicaciones , Depresión/etnología , Análisis Factorial , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/etnología , Infecciones por VIH/psicología , Haití/epidemiología , Humanos , Entrevistas como Asunto , Modelos Logísticos , Masculino , Cumplimiento de la Medicación/etnología , Cumplimiento de la Medicación/estadística & datos numéricos , Persona de Mediana Edad , Factores Socioeconómicos , Trastornos Relacionados con Sustancias/complicaciones , Trastornos Relacionados con Sustancias/etnología , Encuestas y Cuestionarios , Resultado del Tratamiento , Adulto Joven
5.
J Youth Adolesc ; 42(7): 1015-27, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22814639

RESUMEN

Runaway and homeless youth often have a constellation of background behavioral, emotional, and familial problems that contribute to stress and maladaptive behaviors, which, in turn, can lead to self-harming and suicidal behaviors. The current study examined the roles of stress and maladaptive behaviors as mediators between demographic and psychosocial background characteristics and self-injurious outcomes through the lens of the stress process paradigm. The model was tested in a sample of runaway and homeless youth from Los Angeles County (N = 474, age 12-24, 41 % female, 17 % White, 32.5 % African American, 21.5 % Hispanic/Latino). Background variables (gender, age, sexual minority status, parental drug use history, and emotional distress) predicted hypothesized mediators of maladaptive behaviors and recent stress. In turn, it was hypothesized that the mediators would predict self-harming behaviors and suicide attempts in the last 3 months. Females and LGBT (lesbian, gay, bisexual, transgender) youth were more likely to have self-harmed and attempted suicide; younger participants reported more self-harming. The mediating constructs were associated more highly with self-harming than suicide attempts bivariately, although differences were modest. Maladaptive behaviors and recent stress were significant predictors of self-harm, whereas only recent stress was a significant predictor of suicide attempts. All background factors were significant predictors of recent stress. Older age, a history of parental drug use, and greater emotional distress predicted problem drug use. Males, younger participants, and participants with emotional distress reported more delinquent behaviors. Significant indirect effects on self-harming behaviors were mediated through stress and maladaptive behaviors. The hypothesized paradigm was useful in explaining the associations among background factors and self-injurious outcomes and the influence of mediating factors on these associations.


Asunto(s)
Adaptación Psicológica , Jóvenes sin Hogar/psicología , Modelos Psicológicos , Conducta Autodestructiva/psicología , Estrés Psicológico , Adolescente , Niño , Estudios Transversales , Análisis Factorial , Femenino , Humanos , Entrevistas como Asunto , Delincuencia Juvenil/psicología , Masculino , Modelos Estadísticos , Autoinforme , Trastornos Relacionados con Sustancias/psicología , Intento de Suicidio/psicología , Adulto Joven
6.
AIDS Behav ; 16(8): 2198-208, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22311149

RESUMEN

Many women with HIV are primary caregivers for their children. Social factors, including family dynamics, play a major role in women's depression. We hypothesized an impact of HIV seropositivity on greater depression mediated through poorer family functioning and social support. Participants include 332 Mothers Living with HIV (MLH) and 200 Neighborhood Control Mothers (NCM) recruited in Los Angeles County. The NCM were matched by neighborhood. All had children ages 6 through 20. Analyses using structural equation modeling (SEM) indicated HIV seropositivity was positively correlated with depression and negatively correlated with positive social support and effective family functioning. In a predictive path model, the relationship between having HIV and depressed mood was mediated by social support and family functioning. Findings offer explanation for increased depression resulting from HIV and social and family dynamics, and suggest innovative interventions to abate psychosocial health problems and lower risk for depression among women with HIV.


Asunto(s)
Depresión/psicología , Relaciones Familiares , Infecciones por VIH/psicología , Madres/psicología , Apoyo Social , Adolescente , Adulto , Anciano , Niño , Estudios Transversales , Depresión/diagnóstico , Análisis Factorial , Familia , Femenino , Infecciones por VIH/complicaciones , Humanos , Los Angeles , Persona de Mediana Edad , Factores Socioeconómicos , Encuestas y Cuestionarios , Adulto Joven
7.
AIDS Behav ; 16(8): 2297-308, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22767030

RESUMEN

The purpose of this study was to examine neurological impairment in combination with information-motivation-behavioral skills (IMB) variables. The study tests the role of IMB variables as mediators of antecedent variables of demographics, life stress, social support, and neurological impairment with outcome measures of HIV preventive and risk behaviors in a sample of HIV-positive, alcohol-using adults (n = 250) with a history of alcohol abuse/dependence. Neurological impairment was measured with the Color Trails Test (CTT). Average performance on the CTT by the sample was substantially worse than established norms. In a directional latent variable model, neurological impairment directly predicted lower transmission knowledge scores and poorer performance on an observational condom skills assessment. Greater neurological impairment was significantly associated with greater age. Future interventions geared toward HIV+ adults who use alcohol should take into consideration HIV-related and age-related neurological functioning which may impede the facilitation of safe sex behaviors.


Asunto(s)
Trastornos Relacionados con Alcohol/psicología , Trastornos del Conocimiento/psicología , Infecciones por VIH/psicología , Motivación , Conducta de Reducción del Riesgo , Asunción de Riesgos , Adulto , Factores de Edad , Trastornos Relacionados con Alcohol/complicaciones , Trastornos del Conocimiento/complicaciones , Condones/estadística & datos numéricos , Análisis Factorial , Femenino , Infecciones por VIH/prevención & control , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Conducta Social , Apoyo Social , Encuestas y Cuestionarios
8.
J Dual Diagn ; 8(1): 64-73, 2012 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-22707922

RESUMEN

OBJECTIVE: Physical health problems are pervasive among patients with co-occurring substance use and mental disorders. Yet, drug treatment programs often ignore tobacco use and its association with health. Abstinence self-efficacy has been associated with improved outcomes for co-occurring disorders, which in turn may also impact physical health. This study had the goal of assessing whether abstinence self-efficacy for drugs and alcohol, and provision and use of services would influence tobacco use and other health-related outcomes among 351 individuals with co-occurring disorders in residential drug treatment. METHODS: Structural models tested the impact of baseline abstinence self-efficacy and treatment service characteristics on 6-month outcomes of health problems, functional limitations, health perceptions, and cigarette and heavy alcohol use. Demographics and baseline values for outcome variables were included as covariates. RESULTS: Correlations within time for poor health, cigarette use, and heavy alcohol use were substantial. A longer time in drug treatment was associated with less cigarette and heavy alcohol use at a 6-month follow-up. Baseline health problems were associated with more cigarette use and functional limitations at 6-months. Abstinence self-efficacy did not predict less cigarette use, but predicted less heavy alcohol use and fewer functional limitations. Availability of specialized dual-diagnosis groups and more on-site psychological services were not directly associated with outcomes, but had an impact through indirect effects on more psychological service utilization which predicted better subjective health. CONCLUSIONS: Improving overall treatment retention and services utilization among patients with co-occurring disorders may generalize to improved health perceptions, but specific health promotion and smoking-cessation interventions are warranted to improve health outcomes.

9.
Sci Rep ; 12(1): 17876, 2022 10 25.
Artículo en Inglés | MEDLINE | ID: mdl-36284200

RESUMEN

The broadly neutralizing antibody (bNAb) CAP256-VRC26.25 has exceptional potency against HIV-1 and has been considered for clinical use. During the characterization and production of this bNAb, we observed several unusual features. First, the antibody appeared to adhere to pipette tips, requiring tips to be changed during serial dilution to accurately measure potency. Second, during production scale-up, proteolytic cleavage was discovered to target an extended heavy chain loop, which was attributed to a protease in spent medium from 2-week culture. To enable large scale production, we altered the site of cleavage via a single amino acid change, K100mA. The resultant antibody retained potency and breadth while avoiding protease cleavage. We also added the half-life extending mutation LS, which improved the in vivo persistence in animal models, but did not impact neutralization activity; we observed the same preservation of neutralization for bNAbs VRC01, N6, and PGDM1400 with LS on a 208-virus panel. The final engineered antibody, CAP256V2LS, retained the extraordinary neutralization potency of the parental antibody, had a favorable pharmacokinetic profile in animal models, and was negative in in vitro assessment of autoreactivity. CAP256V2LS has the requisite potency, developability and suitability for scale-up, allowing its advancement as a clinical candidate.


Asunto(s)
Infecciones por VIH , VIH-1 , Animales , Anticuerpos ampliamente neutralizantes , Semivida , Anticuerpos Neutralizantes , Anticuerpos Anti-VIH , Péptido Hidrolasas , Aminoácidos
10.
J Sex Marital Ther ; 37(5): 359-85, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21961444

RESUMEN

This article reports the psychometric evaluation of the Pornography Consumption Inventory (PCI), which was developed to assess motivations for pornography use among hypersexual men. Initial factor structure and item analysis were conducted in a sample of men (N = 105) seeking to reduce their pornography consumption (Study 1), yielding a 4-factor solution. In a second sample of treatment-seeking hypersexual men (N = 107), the authors further investigated the properties of the PCI using confirmatory factor analytic procedures, reliability indices, and explored PCI associations with several other constructs to establish convergent and discriminant validity. These studies demonstrate psychometric evidence for the PCI items that measure tendencies of hypersexual men to use pornography (a) for sexual pleasure; (b) to escape, cope, or avoid uncomfortable emotional experiences or stress; (c) to satisfy sexual curiosity; and (d) to satisfy desires for excitement, novelty, and variety.


Asunto(s)
Literatura Erótica , Conducta Impulsiva/psicología , Conducta Sexual/psicología , Disfunciones Sexuales Psicológicas/diagnóstico , Encuestas y Cuestionarios/normas , Adulto , Análisis Factorial , Humanos , Masculino , Persona de Mediana Edad , Inventario de Personalidad , Psicometría , Reproducibilidad de los Resultados , Disfunciones Sexuales Psicológicas/psicología , Adulto Joven
11.
Qual Life Res ; 20(8): 1205-13, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21328090

RESUMEN

PURPOSE: Previous work suggests that opioid users have lower health-related quality of life (HRQOL) than patients with more prevalent chronic illnesses such as hypertension or diabetes. Although comparisons with population norms are informative, studies of the correlates of HRQOL for opioid users are needed to plan clinical services. METHODS: We tested a conceptual model of the pathways between physiologic factors and symptoms in relation to HRQOL among 344 opioid users in a clinical trial. Physical and mental HRQOL were measured by the Short-Form (SF)-36; withdrawal signs, symptoms, and functioning were also measured with validated instruments. Using structural equation modeling, we tested hypotheses that medical history directly predicts withdrawal signs and symptoms, and that medical history, withdrawal signs and symptoms, and functioning predict the physical and mental HRQOL latent variables of the SF-36. RESULTS: Most hypothesized relationships were significant, and model fit was good. The model explained 36% of the variance in mental HRQOL and 34% of the variance in physical HRQOL. CONCLUSIONS: The conceptual framework appears valid for explaining variation in the physical and mental HRQOL of opioid users undergoing medically managed withdrawal. Analysis of longitudinal data would help to evaluate more rigorously the adequacy of the model for explaining HRQOL in opioid withdrawal.


Asunto(s)
Analgésicos Opioides/efectos adversos , Trastornos Relacionados con Opioides/psicología , Calidad de Vida , Síndrome de Abstinencia a Sustancias/psicología , Adolescente , Adulto , Índice de Masa Corporal , Buprenorfina/uso terapéutico , Humanos , Persona de Mediana Edad , Antagonistas de Narcóticos/uso terapéutico , Tratamiento de Sustitución de Opiáceos , Trastornos Relacionados con Opioides/tratamiento farmacológico , Índice de Severidad de la Enfermedad , Perfil de Impacto de Enfermedad , Adulto Joven
12.
J Nerv Ment Dis ; 199(4): 263-7, 2011 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-21451351

RESUMEN

Although shame and facets of neuroticism have independently been linked to hypersexuality, the present study extends these findings by exploring pathways among these variables, using structural equation modeling in a patient sample of hypersexual adult men (N = 95). Results suggested that the domain of neuroticism, as represented by the NEO Personality Inventory-Revised, was a significant direct predictor of hypersexuality, with specific variance from the facet of impulsivity adding additional predictive power. Shame's bivariate association with hypersexuality was also significant, but in a predictive path model the effect of shame on hypersexuality was indirectly mediated through neuroticism and was not an independently significant predictor. Implications for treatment suggest that clinicians working with this population should evaluate precipitating risk factors to consider whether shame is activating neurotic coping or if other stressors might be influencing emotional instability that can trigger hypersexuality. Independent of the general distress associated with neuroticism, the literature on impulsivity might provide other valuable insights and direction for working with hypersexual men.


Asunto(s)
Trastornos Neuróticos/psicología , Disfunciones Sexuales Psicológicas/psicología , Vergüenza , Adulto , Distribución de Chi-Cuadrado , Análisis Factorial , Humanos , Conducta Impulsiva/psicología , Masculino , Persona de Mediana Edad , Inventario de Personalidad , Factores de Riesgo , Adulto Joven
13.
J Clin Child Adolesc Psychol ; 40(6): 878-89, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-22023279

RESUMEN

Although homeless youth exhibit numerous problem behaviors, protective factors that can be targeted and modified by prevention programs to decrease the likelihood of involvement in risky behaviors are less apparent. The current study tested a model of protective factors for multiple problem behavior in a sample of 474 homeless youth (42% girls; 83% minority) ages 12 to 24 years. Higher levels of problem solving and planning skills were strongly related to lower levels of multiple problem behaviors in homeless youth, suggesting both the positive impact of preexisting personal assets of these youth and important programmatic targets for further building their resilience and decreasing problem behaviors. Indirect relationships between the background factors of self-esteem and social support and multiple problem behaviors were significantly mediated through protective skills. The model suggests that helping youth enhance their skills in goal setting, decision making, and self-reliant coping could lessen a variety of problem behaviors commonly found among homeless youth.


Asunto(s)
Adaptación Psicológica , Conducta del Adolescente/psicología , Jóvenes sin Hogar/psicología , Trastornos Mentales/psicología , Adolescente , Niño , Toma de Decisiones , Femenino , Objetivos , Humanos , Masculino , Solución de Problemas , Conducta Fugitiva/psicología , Apoyo Social , Adulto Joven
14.
Lancet Respir Med ; 9(10): 1111-1120, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-33864736

RESUMEN

BACKGROUND: Multiple active vaccination approaches have proven ineffective in reducing the substantial morbidity and mortality caused by respiratory syncytial virus (RSV) in infants and older adults (aged ≥65 years). A vaccine conferring a substantial and sustainable boost in neutralising activity is required to protect against severe RSV disease. To that end, we evaluated the safety and immunogenicity of DS-Cav1, a prefusion F subunit vaccine. METHODS: In this randomised, open-label, phase 1 clinical trial, the stabilised prefusion F vaccine DS-Cav1 was evaluated for dose, safety, tolerability, and immunogenicity in healthy adults aged 18-50 years at a single US site. Participants were assigned to receive escalating doses of either 50 µg, 150 µg, or 500 µg DS-Cav1 at weeks 0 and 12, and were randomly allocated in a 1:1 ratio within each dose group to receive the vaccine with or without aluminium hydroxide (AlOH) adjuvant. After 71 participants had been randomised, the protocol was amended to allow some participants to receive a single vaccination at week 0. The primary objectives evaluated the safety and tolerability at every dose within 28 days following each injection. Neutralising activity and RSV F-binding antibodies were evaluated from week 0 to week 44 as secondary and exploratory objectives. Safety was assessed in all participants who received at least one vaccine dose; secondary and exploratory immunogenicity analysis included all participants with available data at a given visit. The trial is registered with ClinicalTrials.gov, NCT03049488, and is complete and no longer recruiting. FINDINGS: Between Feb 21, 2017, and Nov 29, 2018, 244 participants were screened for eligibility and 95 were enrolled to receive DS-Cav1 at the 50 µg (n=30, of which n=15 with AlOH), 150 µg (n=35, of which n=15 with AlOH), or 500 µg (n=30, of which n=15 with AlOH) doses. DS-Cav1 was safe and well tolerated and no serious vaccine-associated adverse events deemed related to the vaccine were identified. DS-Cav1 vaccination elicited robust neutralising activity and binding antibodies by 4 weeks after a single vaccination (p<0·0001 for F-binding and neutralising antibodies). In analyses of exploratory endpoints at week 44, pre-F-binding IgG and neutralising activity were significantly increased compared with baseline in all groups. At week 44, RSV A neutralising activity was 3·1 fold above baseline in the 50 µg group, 3·8 fold in the 150 µg group, and 4·5 fold in the 500 µg group (p<0·0001). RSV B neutralising activity was 2·8 fold above baseline in the 50 µg group, 3·4 fold in the 150 µg group, and 3·7 fold in the 500 µg group (p<0·0001). Pre-F-binding IgG remained significantly 3·2 fold above baseline in the 50 µg group, 3·4 fold in the 150 µg group, and 4·0 fold in the 500 µg group (p<0·0001). Pre-F-binding serum IgA remained 4·1 fold above baseline in the 50 µg group, 4·3 fold in the 150 µg group, and 4·8 fold in the 500 µg group (p<0·0001). Although a higher vaccine dose or second immunisation elicited a transient advantage compared with lower doses or a single immunisation, neither significantly impacted long-term neutralisation. There was no long-term effect of dose, number of vaccinations, or adjuvant on neutralising activity. INTERPRETATION: In this phase 1 study, DS-Cav1 vaccination was safe and well tolerated. DS-Cav1 vaccination elicited a robust boost in RSV F-specific antibodies and neutralising activity that was sustained above baseline for at least 44 weeks. A single low-dose of pre-F immunisation of antigen-experienced individuals might confer protection that extends throughout an entire RSV season. FUNDING: The National Institutes of Allergy and Infectious Diseases.


Asunto(s)
Vacunas contra Virus Sincitial Respiratorio , Adolescente , Adulto , Anticuerpos Neutralizantes , Anticuerpos Antivirales , Método Doble Ciego , Humanos , Lactante , Persona de Mediana Edad , Vacunas contra Virus Sincitial Respiratorio/efectos adversos , Virus Sincitiales Respiratorios , Vacunas de Subunidad/efectos adversos , Adulto Joven
15.
Pain Med ; 11(6): 815-24, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20456074

RESUMEN

OBJECTIVE: Women represent the largest percentage of new HIV infections globally. Yet, no large-scale studies have examined the experience of pain and its treatment in women living with HIV. DESIGN: This study used structural equation modeling to examine sex differences in pain and the use and misuse of prescription analgesics in a representative sample of HIV+ persons in the United Stated within a prospective, longitudinal design. OUTCOME MEASURES: Bodily pain subscale of the Short-Form 36 and Modified Short Form of the World Health Organization's Composite International Diagnostic Interview (opioid misuse). RESULTS: Women reported more pain than men over a roughly 6-month period regardless of mode of HIV transmission or prior drug use history. Men acknowledged more misuse of prescription analgesics over an approximate 1-year period compared with women, after taking into account pain, use of analgesics specifically for pain, and drug use history. Weaker associations between pain and use of analgesics specifically for pain that persisted over time were found among women compared with men. For both men and women, pain was stable over time. Problem drug use history exerted significant direct and indirect effects on pain, opioid misuse, and pain-specific analgesic use across sex. CONCLUSION: The current findings are consistent with prior evidence indicating female pain predominance as well as the undertreatment of pain among women with HIV. Efforts should be made to improve the assessment and long-term management of pain in HIV+ persons.


Asunto(s)
Analgésicos/uso terapéutico , Infecciones por VIH , Trastornos Relacionados con Opioides/fisiopatología , Dolor , Adulto , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/fisiopatología , Humanos , Masculino , Dolor/tratamiento farmacológico , Dolor/etiología , Dolor/fisiopatología , Dolor/psicología , Medicamentos bajo Prescripción/uso terapéutico , Caracteres Sexuales
16.
J Clin Child Adolesc Psychol ; 39(3): 328-40, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20419574

RESUMEN

The present study investigated how maternal HIV and mediating family processes are associated with adolescent distress, substance use, and risky sexual behavior. Mother-adolescent (ages 12-21) dyads (N = 264) were recruited from neighborhoods where the HIV-affected families resided (161 had mothers with HIV). Mediating family processes were youth aggressive conflict style, maternal bonding, maternal role reversal expectations, and overall family functioning. Results of structural equation modeling indicated that youth aggressive conflict resolution style was strongly associated with adolescent distress, substance use, and risky sexual behavior. In HIV-affected families, youth less frequently reported using an aggressive conflict resolution style and more frequently reported positive maternal bonds; their mothers reported less positive family functioning than control families. Finally, maternal distress indirectly affected adolescent distress and risk behavior via youth aggressive conflict resolution style.


Asunto(s)
Conducta del Adolescente/psicología , Infecciones por VIH/psicología , Madres/psicología , Estrés Psicológico/psicología , Trastornos Relacionados con Sustancias/psicología , Sexo Inseguro/psicología , Adolescente , Adulto , Agresión/psicología , Conflicto Psicológico , Femenino , Humanos , Masculino , Relaciones Madre-Hijo , Factores de Riesgo
17.
Prev Sci ; 11(3): 298-307, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20020208

RESUMEN

Family and social relationships are important structural supports in Thailand that are likely to influence the health and mental health of persons living with HIV (PLH). Structural equation modeling examined these relationships among 409 PLH in two communities in Thailand. Latent variables were constructed for most outcomes and mediators, with adherence to antiretroviral (ARV) therapy, depression, and disclosure represented by single-item indicators. All models controlled for gender, age, and education. Disclosure was significantly and positively associated with ARV adherence, and to both family functioning and social support. Family functioning and social support were significantly related to the PLH's self-perceptions of health and mental health, as well as being significantly correlated with each other. Better family functioning was significantly associated with better quality of life, better perceived health, fewer symptoms of depression, and greater ARV adherence. Social support was significantly associated with better quality of life and fewer depressive symptoms. These results highlight the important role that an organized and structured family life and social support network can play in encouraging better health outcomes among PLH.


Asunto(s)
Familia , Infecciones por VIH/psicología , Relaciones Interpersonales , Padres , Adulto , Fármacos Anti-VIH/uso terapéutico , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Masculino , Cooperación del Paciente , Calidad de Vida , Autorrevelación , Apoyo Social , Tailandia
18.
J Res Crime Delinq ; 47(4): 469-495, 2010 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-21572904

RESUMEN

This study tested Agnew's General Strain Theory (GST) by examining the roles of anger, anxiety, and maladaptive coping in mediating the relationship between strain and three outcomes (serious delinquency, minor delinquency, and continued involvement in the juvenile justice system) among adolescent female offenders (N = 261). Strains consisted of adverse life events and exposure to Hurricane Katrina. Greater exposure to Hurricane Katrina was directly related to serious delinquency and maladaptive coping. Hurricane Katrina also had an indirect effect on minor delinquency and Post-Katrina juvenile justice involvement mediated through maladaptive coping. Adverse life events were associated with increased anger, anxiety, and maladaptive coping. Anger mediated the relationship between adverse life events and serious delinquency. Anxiety mediated the relationship between adverse life events and minor delinquency. Maladaptive coping strategies were associated with minor delinquency and juvenile justice involvement. Findings lend support to GST.

19.
Psychopathology ; 42(4): 242-8, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19451757

RESUMEN

OBJECTIVE: The emerging dimensional approach to classification and treatment of psychiatric disorders calls for better understanding of diagnosis-related variations in psychiatric syndromes and for proper validation of psychometric scales used for the evaluation of those syndromes. This study tested the hypothesis that negative and depressive syndromes as measured by the Positive and Negative Syndrome Scale (PANSS) are consistent across different diagnoses. METHOD: We administered the PANSS to subjects with schizophrenia (n = 305), organic brain disease (OBD, n = 66) and major depressive disorder (MDD, n = 75). Confirmatory factor analysis (CFA) was used to establish if the PANSS items for negative symptoms and for depression fit the hypothesized factor structure and if the item factor loadings were similar among the diagnostic groups. RESULTS: The negative and depressive symptom subscales fit well according to a variety of fit indexes for all groups individually after some modest model modification. However, multisample modeling procedures indicated that the pattern of factor loadings was significantly different among the groups in most cases. CONCLUSION: The results of this study indicate diagnosis-related variations in the negative and depressive syndrome dimensions in schizophrenia, OBD and MDD. These results also validate limited use of the PANSS for evaluation of negative and depressive syndromes in disorders other than schizophrenia. Larger studies are warranted to further evaluate clinical and nosologic significance of diagnostic categories, dimensions and structures of psychiatric syndromes.


Asunto(s)
Demencia/diagnóstico , Trastorno Depresivo Mayor/diagnóstico , Trastorno Depresivo/diagnóstico , Escalas de Valoración Psiquiátrica/estadística & datos numéricos , Esquizofrenia/diagnóstico , Psicología del Esquizofrénico , Adulto , Anciano , Anciano de 80 o más Años , Demencia/psicología , Trastorno Depresivo/psicología , Trastorno Depresivo Mayor/psicología , Diagnóstico Diferencial , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicometría/estadística & datos numéricos , Reproducibilidad de los Resultados , Síndrome
20.
Am J Orthopsychiatry ; 79(1): 39-50, 2009 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-19290724

RESUMEN

Using an Attachment Theory conceptual framework, associations were investigated among positive paternal and maternal relationships, and recent problem behaviors among 501 currently homeless and runaway adolescents (253 males, 248 females). Homeless and runaway youth commonly exhibit problem behaviors such as substance use, various forms of delinquency and risky sex behaviors, and report more emotional distress than typical adolescents. Furthermore, attachments to their families are often strained. In structural equation models, positive paternal relationships significantly predicted less substance use and less criminal behavior, whereas maternal relationships did not have a significant effect on or association with either behavior. Positive maternal relationships predicted less survival sex behavior. Separate gender analyses indicated that among the females, a longer time away from home was significantly associated with a poorer paternal relationship, and more substance use and criminal behavior. Paternal relations, a neglected area of research and often not addressed in attachment theory, should be investigated further. Attachments, particularly to fathers, were protective against many deleterious behaviors. Building on relatively positive relations and attachments may foster family reunifications and beneficial outcomes for at-risk youth.


Asunto(s)
Conducta del Adolescente , Relaciones Padre-Hijo , Jóvenes sin Hogar/psicología , Relaciones Madre-Hijo , Asunción de Riesgos , Adolescente , Niño , Femenino , Humanos , Delincuencia Juvenil , Masculino , Modelos Psicológicos , Apego a Objetos , Caracteres Sexuales , Estrés Psicológico , Trastornos Relacionados con Sustancias , Adulto Joven
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