OBJECTIVE This report presents data on the prevalence of oral sex with opposite-sex partners and the timing of first oral sex relative to first vaginal intercourse among females and males aged 15-24 based on the National Survey of Family Growth (NSFG) data from 2007-2010. The question on timing, added to the NSFG in 2007, asked females and males whether first oral sex occurred before, after, or...

BACKGROUND Less is known about the sexual health of young adults than about adolescents, despite 20 to 24-year-olds' greater risk of unintended pregnancy and sexually transmissible infections. This paper provides information on college students' prior and current sexual practices including oral sex, vaginal intercourse, anal intercourse and masturbation. METHODS We analysed data from a cross-...

OBJECTIVE Identification of the symptoms of bacterial vaginosis (BV) in pregnancy might be rational in order to identify a possible BV-associated group at risk of preterm delivery. METHODS Three hundred and five women early in the third trimester of pregnancy were interviewed about lifestyle factors and specific symptoms of BV and given a vaginal examination. A longitudinal three-week follow-...

The purpose of this study was to determine how initial HIV prevention efforts for homeless youth were received and to determine areas where homeless youth's beliefs and behaviors continue to put them at risk for HIV infection. Interviews were conducted with 289 Seattle homeless youth. Youth reported using condoms with casual partners during vaginal and anal sex and with clients during oral, ana...

OBJECTIVES To examine the influence of sexual activity on the composition and consistency of the vaginal microbiota over time, and distribution of Gardnerella vaginalis clades in young women. METHODS Fifty-two participants from a university cohort were selected. Vaginal swabs were self-collected every 3-months for up to 12 months with 184 specimens analysed. The vaginal microbiota was charact...

BACKGROUND Sexual behaviour and sexual practices affect the risk for acquisition and transmission of HIV infection. This study tries to identify differences in sexual behaviour (condom use with non-marital partners, multiple sexual partnerships transactional sex and age mixing in sexual relationships), sexual practices (oral, anal and vagina sex), and forced sexual initiation based on sex and H...

The estrogenic efficacy of topical vaginal application of Pueraria mirifica extract (PM) on the restoration of vaginal atrophy, and the presence of any systemic side effects, were investigated in postmenopausal cynomolgus macaques. Twelve postmenopausal cynomolgus macaques, with complete cessation of menstruation for at least 5 years before start of this experiment, were divided into three grou...

BACKGROUND The synthesis of sex steroids is controlled by several enzymes such as17α-hydroxylase cytochrome P450 (P450c17) catalyzing androgen synthesis and aromatase cytochrome P450 (P450arom) catalyzing estrogen synthesis, both of which must complex with the redox partner NADPH-cytochrome P450 oxidoreductase (CPR) for activity. Previous studies have identified expression of steroidogenic enzy...

BACKGROUND Sexual practices as an important aspect of reproductive health have many physical and psychological effects on people's lives, there is limited evidence on such practices and their pattern among Iranian women. Hence we aimed to determine different types of sexual practices among 19-45 year old married Iranian women. METHODS This cross-sectional study was conducted among 200 married...