The effect of pulsatile infusion of gonadotropin-releasing hormone (GnRH) on follicular function was evaluated in nutritionally induced anovulatory beef cows. After 4 (short; n = 12) or 18 wk (long; n = 12) of anovulation, cows were randomly assigned within anovulatory group to either 2 microg of GnRH treatment or saline (control; i.v.) every hour for 5 d. Ovarian structures were monitored by d...

Hyperprolactinaemia is one of the most frequent causes anovulation, resulting in infertility and hypoestrogenic state with consequences on overall women’s health. Recent investigations biological actions prolactin, especially prolactin extrapituitary origin, expand our knowledge role human organism open new questions connected female reproductive function treatment infertility. This article rep...

New diagnostic criteria for polycystic ovary syndrome (PCOS) suggested three main phenotypes: classic (hyperandrogenism and anovulation), ovulatory, and normoandrogenic. However, it is unclear whether the normoandrogenic phenotype actually represents PCOS. Overall, 6% to 8% of reproductive-aged women suffer from PCOS, making this disorder one of the most common endocrine abnormalities.

The development of effective treatment has a marvellously encouraging effect on the incidence of a disease. When, as has happened with the occasional spectacular overkill of gonadotrophin treatment of infertility, the media takes an intense interest in the treatment, the number of patients seeking it rises still more steeply. There are, however, more worthy reasons for the rising pressure. The ...

OBJECTIVE The current report aims to compare the prevalence of polycystic ovary syndrome (PCOS) diagnosed according to the new Rotterdam criteria (Rott-PCOS) versus the previous criteria as formulated by the National Institutes of Health (NIH) (NIH-PCOS) in women with normogonadotropic (WHO-II) anovulation and assess the frequency of obesity and related factors determined in these women. DESI...