Dataset Information

Intravaginal practices and genital human papillomavirus infection among female sex workers in Cambodia.

ABSTRACT: OBJECTIVES:Intravaginal practices (IVPs) include washing, wiping, or inserting something inside the vagina. This study investigates the associations between IVPs and genital human papillomavirus (HPV) infection. METHODS:We conducted a cross-sectional study of 200 female sex workers aged 18 to 35 years in Phnom Penh, Cambodia. From August to September 2014. Data on sociodemographic characteristics, IVPs, and other behaviors were collected through face-to-face interviews. Self-collected cervicovaginal specimens were tested for 37 HPV genotypes. RESULTS:Multivariable Poisson regression models showed that a lower number of infecting HPV genotypes were associated with intravaginal washing in the past 3 months (incident rate ratios [IRR]?=?0.65, 95% confidence interval [CI]: 0.46-0.94) and often performing intravaginal washing shortly after sex (IRR?=?0.89, 95% CI: 0.81-0.99). Intravaginal washing before vaginal sex, intravaginal wiping, and intravaginal insertion were not associated with HPV infection. CONCLUSION:These findings challenge the existing view that all types of vaginal cleansing are harmful. Specifically, intravaginal washing shortly after sex (mainly with water) may help prevent HPV infection in female sex workers, who have several partners and thus frequently expose to sources of HPV infection with different genotypes.

SUBMITTER: Bui TC

PROVIDER: S-EPMC6158050 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Intravaginal practices and genital human papillomavirus infection among female sex workers in Cambodia.

Bui Thanh Cong TC Scheurer Michael E ME Pham Vy Thi-Tuong VT Tran Ly Thi-Hai LT Hor Leng Bun LB Vidrine Damon J DJ Ross Michael W MW Markham Christine M CM

Journal of medical virology 20180813 11

<h4>Objectives</h4>Intravaginal practices (IVPs) include washing, wiping, or inserting something inside the vagina. This study investigates the associations between IVPs and genital human papillomavirus (HPV) infection.<h4>Methods</h4>We conducted a cross-sectional study of 200 female sex workers aged 18 to 35 years in Phnom Penh, Cambodia. From August to September 2014. Data on sociodemographic characteristics, IVPs, and other behaviors were collected through face-to-face interviews. Self-colle ...[more]

PMID: 30016541

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Project description:ObjectiveCationic proteins found in cervicovaginal secretions (CVS) are known to contribute to the early antiviral immune response against HIV-infection in vitro. We here aimed to define additional antiviral factors that are over-expressed in CVS from female sex workers at high risk of infection.MethodsCVS were collected from Kenyan HIV-seronegative (n = 34) and HIV-seropositive (n = 12) female sex workers, and were compared with those from HIV-seronegative low-risk women (n = 12). The highly exposed seronegative (HESN) sex workers were further divided into those with less (n = 22) or more (n = 12) than three years of documented sex work. Cationic protein-depleted CVS were assessed for HIV-neutralizing activity by a PBMC-based HIV-neutralizing assay, and then characterized by proteomics.ResultsHIV neutralizing activity was detected in all unprocessed CVS, however only CVS from the female sex worker groups maintained its HIV neutralizing activity after cationic protein-depletion. Differentially abundant proteins were identified in the cationic protein-depleted secretions including 26, 42, and 11 in the HESN>3 yr, HESN<3 yr, and HIV-positive groups, respectively. Gene ontology placed these proteins into functional categories including proteolysis, oxidation-reduction, and epidermal development. The proteins identified in this study include proteins previously associated with the HESN phenotype in other cohorts as well as novel proteins not yet associated with anti-HIV activities.ConclusionWhile cationic proteins appear to contribute to the majority of the intrinsic HIV neutralizing activity in the CVS of low-risk women, a broader range of non-cationic proteins were associated with HIV neutralizing activity in HESN and HIV-positive female sex workers. These results indicate that novel protein factors found in CVS of women with high-risk sexual practices may have inherent antiviral activity, or are involved in other aspects of anti-HIV host defense, and warrant further exploration into their mode of action.

Dataset Information

Intravaginal practices and genital human papillomavirus infection among female sex workers in Cambodia.

Publications

Intravaginal practices and genital human papillomavirus infection among female sex workers in Cambodia.

Similar Datasets

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