RESUMEN
We identified demographic, clinical and biological determinants of herpes simplex virus type 2 (HSV-2) shedding among HIV-infected participants in the Women's HIV Interagency Study (WIHS). Cervicovaginal lavage (CVL) specimens from 369 HIV-infected HSV seropositive women were tested with TaqMan polymerase chain reaction (PRC) for detection HSV-2 DNA. Seven percent of women tested positive for HSV-2 DNA in CVL. Significant correlates of the presence of HSV-2 DNA in CVL were being younger, African American or Hispanic race/ethnicity and injecting drugs in the past six months (P < 0.05). A borderline significant trend for reduced viral shedding with higher CD4+ T cell counts was observed (P = 0.08). All women who were never observed with any genital lesions and had consistently negative self-reported history of genital sores throughout the follow-up (n = 29, 8%) were negative for CVL HSV-2 DNA. HSV-2 DNA quantity was significantly associated with having frequent subsequent lesion recurrences (Spearman rho = 0.48, P = 0.016; adjusted prevalence ratio [APR] = 2.5, P = 0.012). Increasing the age of the host was inversely correlated with decreased viral shedding over time. However, a subset of older women continued to shed significant amounts of virus despite passage of time. This study provides genital HSV-2 DNA titre as a quantitative and symptom- and sign-based measures as qualitative predictors of HSV-2 shedding from the lower genital tract among HIV-infected women.
Asunto(s)
Infecciones por VIH/complicaciones , Herpes Genital/diagnóstico , Herpes Genital/virología , Herpesvirus Humano 2/aislamiento & purificación , Esparcimiento de Virus , Adulto , Anticuerpos Antivirales/sangre , ADN Viral/sangre , Femenino , Herpes Genital/patología , Herpesvirus Humano 2/genética , Humanos , Reacción en Cadena de la Polimerasa , Factores de Riesgo , Ducha VaginalRESUMEN
BACKGROUND: Probiotic functional foods are widely advertised to consumers primarily based on probiotic supplements. OBJECTIVE: Determine if consumption of yogurt containing a high dose of probiotics improves health in children ages 1-3 years attending daycare/school centers. SUBJECTS/METHODS: Double-blinded, randomized, placebo-controlled, allocation concealment clinical trial. SETTING: Outpatient participants in the Washington, DC area. PARTICIPANTS: 182 healthy children between the age of 1 and 3 years attending daycare/school at least 3 days a week. INTERVENTION: Active was a strawberry yogurt-based drink supplemented with Bifidobacterium animalis ssp. lactis (B. lactis) BB-12. The placebo was indistinguishable from the active drink, differing only in absence of the probiotic BB-12. Primary objective was to determine if consumption of a probiotic-containing yogurt-based drink decreases absences due to illnesses from daycare for children ages 1-3 years. Secondary was to determine if probiotic-containing yogurt-based drink improves overall parental satisfaction due to decreased absences from work and an overall healthier child. RESULTS: There were no significant differences in the days of missed school per group, with 51.9% in the active group and 47.1% in the placebo group missing at least 1 day of school throughout the study. Additionally, there were no differences in any secondary outcomes among the groups. CONCLUSIONS: Consumption of a yogurt-based drink delivering 10(10) CFU of Bifidobacterium animalis ssp. lactis (B. lactis) BB-12 per day did not decrease the number of days missed of school due to an illness. Additional independent research on the potential of BB-12 to reduce illness in children needs to be conducted.