نتایج جستجو برای: spermicide
تعداد نتایج: 111 فیلتر نتایج به سال:
Female and male reproductive traits co-evolve through pre- post-copulatory sexual selection conflict. Although males typically transfer many sperm during copulation, only a small proportion reach the fertilization site because females often actively or passively reduce number in their tract. Males may accessory substances to protect ejaculates against female selective processes, which benefits ...
BACKGROUND For biotechnological application, selected lactic acid bacteria strains belonging to the genera Lactobacillus (Lb) are proposed as an alternative to the antibiotics for the prevention and treatment of urogenital tract infections. OBJECTIVES Isolating and selecting vaginal lactobacilli strains for probiotic use based on their technological and probiotic aptitudes. MATERIALS AND ME...
Topical microbicides designed to prevent acquisition of sexually transmitted infections are urgently needed. Nonoxynol-9, the only commercially available spermicide, damages epithelium and may enhance human immunodeficiency virus transmission. The observation that herpes simplex virus (HSV) and human immunodeficiency virus bind heparan sulfate provided the rationale for the development of sulfa...
OBJECTIVE The objective of the study was to characterize beliefs about contraception among obstetrician-gynecologists. STUDY DESIGN National mailed survey of 1800 US obstetrician-gynecologists. Criterion variables were whether physicians have a moral or ethical objection to, and whether they would offer, 6 common contraceptive methods. Covariates included physician demographic and religious c...
Mucosal drug delivery nanotechnologies are limited by the mucus barrier that protects nearly all epithelial surfaces not covered with skin. Most polymeric nanoparticles, including polystyrene nanoparticles (PS), strongly adhere to mucus, thereby limiting penetration and facilitating rapid clearance from the body. Here, we demonstrate that PS rapidly penetrate human cervicovaginal mucus (CVM), i...
Cysteamine (beta-mercaptoethylamine, or MEA) is a thiol-reducing agent and has anti-HIV activity. Because of these properties, cysteamine was evaluated as a vaginal contraceptive and tested for its effects on sperm function and on other sexually transmitted microbes. Cysteamine was contraceptive in the rabbit. Conception was inhibited completely when sperm were pretreated with 500 microg/ml cys...
Results from a 1995 survey of a nationally representative sample of 603 publicly funded family planning agencies reveal that 96% rely on federal funding, 60% on state funding and 40% on local funding to provide family planning and other services. Although only 25% of the contraceptive clients served by these publicly funded agencies--including health departments, hospitals, Planned Parenthood a...
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