A type of polycystic ovary resembling some aspects of human polycystic ovarian syndrome (PCOS) can be induced in the rat with a single injection of long-acting estradiol valerate. Among several theories behind the development of polycystic ovaries (PCO), the involvement of the sympathetic nervous system draws much attention, and herbal medicine is known to relieve the abnormal symptoms of PCO. ...

STUDY QUESTION What is the prevalence in a normal population of polycystic ovary syndrome (PCOS) according to the Rotterdam criteria versus revised criteria including anti-Müllerian hormone (AMH)? SUMMARY ANSWER The prevalence of PCOS was 16.6% according to the Rotterdam criteria. When replacing the criterion for polycystic ovaries by antral follicle count (AFC) > 19 or AMH > 35 pmol/l, the p...

The aim of study was histological evaluation of oviduct and uterus mucosa in case of cystic ovarian degeneration in sows. Materials for evaluations were received after slaughtering of 294 sows at age of 2-5 years. Sows were eliminated breeding and culled due to reproduction disorders: anoestrus after weaning of piglets, return of estrus, small litters and due to age, number of birth, bad condit...

Success of any assisted reproductive technology is dependent on selection of correct stimulation protocol. This is based on prestimulation assessment of female to assess ovarian response and reserve. But, this assessment can also be done by ultrasound scan on 2nd to 3rd day of menstrual cycle, named as ‘baseline scan’. This scan is done to categorize ovary into one of the four types: Normal ova...

Polycystic ovary syndrome (PCOS) is the commonest endocrine disorder affecting women of reproductive age. Some 20% of women will have polycystic ovaries on an ultrasound scan and around 7% of women have the additional clinical or biochemical features of PCOS. As a complex multisystem disorder its background can be confusing to understand. They key feature, however, is an increased production of...

The critical role of high level of serum LH in polycystic ovary syndrome was evaluated in rats by the long-term administration of hCG. Wistar-Imamichi strain mature female rats (age; 12 weeks) which showed at least two consecutive estrous cycles in vaginal smears were daily injected 10 IU hCG subcutaneously from diestrus for 80 days. Control rats were received saline solutions. On the next day ...

History of Polycystic Ovary Syndrome Although the first description of polycystic ovary syndrome (PCOS) is generally credited to Stein and Leventhal in 1935, it may have been observed as early as 1721, when the Italian scientist Antonio Vallisneri observed “young married peasant women, moderately obese and infertile, with two larger than normal ovaries, bumpy and shiny, whitish, just like pigeo...

The aim of this study was to investigate of the relationship of ovarian stromal volume, measured using three-dimensional ultrasound, to serum androgen concentrations in patients with polycystic ovaries. Serum gonadotrophin, oestradiol and androgen concentrations and ovarian volume measurements were obtained in the early follicular phase from 100 women undergoing assisted conception treatment cy...