Epidemiological studies suggest H(2)O(2)-producing lactobacilli protect women against gonorrhea. Here we demonstrate that Lactobacillus crispatus and Lactobacillus jensenii, the most common lactobacilli in the female genital tract, inhibit gonococci in both acidic and neutral pH conditions. Inhibition was neutralized by bovine catalase, suggesting that H(2)O(2) is the primary mediator of inhibi...

A major hindrance in studying human meiosis has been the inability to assess all four products of female meiosis. Overcoming this hurdle, a new study discovers a high incidence of non-canonical 'reverse meiosis' and a new form of meiotic drive.

•LCH of the female reproductive tract has four patterns of involvement.•A comprehensive literature review revealed 35 cases of pure genital LCH.•We report two new cases of pure LCH lesions of the vulva and one of the cervix.•Treatment of LCH varies and there is no standard for pure genital involvement.•Prognosis of LCH confined to the gynecologic tract appears to be favorable.

Stress-induced reproductive dysfunction is a relatively common cause of infertility in women. In response to everyday life stress, some individuals readily develop reproductive dysfunction (i.e., they are stress sensitive), whereas others are more stress resilient. Female cynomolgus monkeys, when exposed to mild combined psychosocial and metabolic stress (change in social environment + 20% redu...

The gene for vitellogenin, an egg yolk protein precursor, is usually silent in male fish but can be induced by estrogen exposure. For this reason, vitellogenin production in male fish has become a widely used indicator of exposure to exogenous estrogens or estrogen mimics in the aquatic environment. The utility of this indicator to predict impacts on fish reproductive success is unclear because...

BACKGROUND Female sexual dysfunction (FSD) in Indian women is often overlooked due to cultural beliefs and considered as social taboos. Sexuality is an important and integral part of life. There are many causes of sexual dysfunction, but the prevalence of FSD in endometriotic patients is still underdiagnosed. MATERIALS AND METHODS Study design - Cross-sectional observational study conducted a...

Central to the study of speciation is the identification of the isolating mechanisms that reduce gene flow. Of special interest are those isolating mechanisms that are the earliest to arise. Sperm fate and function play a major role in two distinct types of reproductive isolation in the genus Drosophila. First, postcopulatory-prezygotic (PCPZ) incompatibilities between the male ejaculate and a ...

Stress is a well-known cause of reproductive dysfunction in many species, including birds, rodents, and humans, though males and females may respond differently. A powerful way to investigate how stress affects reproduction is by examining its effects on a biological system essential for regulating reproduction, the hypothalamic-pituitary-gonadal (HPG) axis. Often this is done by observing how ...

Reproductive dysfunction is associated with obesity. We previously showed that female mice with diet-induced obesity (DIO) exhibit infertility and thus serve as a model of human polycystic ovary syndrome (PCOS). We postulated that differential insulin signaling of tissues leads to reproductive dysfunction; therefore, a comparison of insulin signaling in reproductive tissues and energy storage t...

background:   objective: herein we evaluated the frequency and predisposing factors of sexual dysfunction in infertile pcos patients.   materials and methods: in this cross-sectional study, 130 married women with a definite diagnosis of pcos who were referred due to infertility were recruited. they were evaluated concerning their sexual function in the domains of desire, arousal, lubrication, o...