Related Experiment Video
Updated: May 17, 2025

Evaluation of Hepatic Glucose Production in a Polycystic Ovary Syndrome Mouse Model
Published on: March 5, 2022
Distribution of polycystic ovary syndrome (PCOS) phenotypes in Iranian women: a cross-sectional study
Asma Kheirollahi1, Hediyeh Hamidi1, Akram Vatannejad2
1Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Objective:
Polycystic ovary syndrome (PCOS) is a heterogeneous disorder characterized by diverse clinical and metabolic manifestations. This study aimed to investigate the prevalence of PCOS phenotypes and their association with hematological, biochemical, and hormonal parameters in PCOS, with a particular focus on infertile women and those with recurrent pregnancy loss (RPL).
Results:
Phenotype A was the most prevalent phenotype overall and within both infertile and RPL subgroups. However, no significant differences in hematological, biochemical, or hormonal parameters were observed among the PCOS phenotypes, except for lower RBC and hematocrit levels in phenotype F. PCOS women with RPL demonstrate significantly lower levels of RBC, hemoglobin, and hematocrit in phenotype F.
Related Concept Videos
Meiosis I
Oogenesis
Infertility in Females
Endometriosis, a condition characterized by abnormal growth of...
Disorders of the Female Reproductive System
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Ovarian Cycle

