Related Experiment Video
Updated: Sep 5, 2025

Author Spotlight: Investigating the Mechanisms and Inducing Models of Polycystic Ovary Syndrome
Published on: July 5, 2024
The Effect of Interleukin-6 and Tumor Necrosis Factor-Alpha Gene Polymorphism and Hormone Replacement Therapy on
Sarhang Hasan Azeez1, Ismail Bilal Ismail2, Suhaila Nafia Darogha1
1College of Education, Salahaddin University-Erbil, Erbil, Kurdistan Region- Iraq. sarhang.azeez@su.edu.krd.
Abstract:
PCOS (polycystic ovarian syndrome) is a prevalent and complicated gynecological endocrine disease that affects around 6% to 10% of women of reproductive age. PCOS is marked by oligoanovulation or anovulation, hyperandrogenism, hyperinsulinemia, monthly irregularity, and infertility. This study included 58 Kurdish females with PCOS who went to private clinics at Hawler city. The disease was confirmed by the doctors with laboratory results and US checking. They were at different age groups with different marital statuses. Demographic distribution, hormonal level and hormone replacement therapy were measured. Cytokine gene polymorphisms were evaluated by Single nucleotide polymorphism (SNP). The amplification-refractory mutation system (ARMS) was used to determine the gene polymorphisms. There was a significant change in the hormone levels and the medications as hormone replacement therapy gained best results for impregnation of the patients by Progyluton, Diane35 with metformin. Results of genetic variations in the evaluated cytokines revealed that for IL-6-174GC polymorphism the CC genotype was considered as a risk factor with OR:1.58, CI:0.16-15.36. While for TNF-α the higher producer GG genotype was the most susceptible cause of the disease with OR:1.41, CI: 0.59-3.36. Data of this study indicated the positive relationship between IL-6 -174GC polymorphism with PCOS while no association was detected for TNF-α -308GA.
Related Concept Videos
Oogenesis
Target Cell Response to Hormones
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
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...
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
Disorders of the Female Reproductive System
Role of Hematopoietic Growth Factors
Thrombopoietin (TPO), mainly released by the liver,...

