Protective Role of Seed Extract of Tephrosia purpurea in Letrozole Induced Polycystic Ovary Syndrome in Wistar Rats

Histomorphometric and biochemical activities of bioactive component of Cyperus esculentus tubers extract on letrozole-induced polycystic ovarian syndrome and cholesterol homeostasis in female Sprague-Dawley rats

Polycystic ovary syndrome (PCOS) is a heterogeneous endocrine and metabolic disorder, causes irregular menstrual cycles, dyslipidemia, excessive body weight, oxidative stress, hyperandrogenism, and infertility. This study focused on the impact of Cyperus esculentus (CES) on letrozole-induced PCOS in female Sprague-Dawley rats. Twenty (20) normal rats and twenty (20) PCOS rats (150–200 g, 8 weeks old) were randomly divided into four groups of ten ( n = 10) rats each. Group A served as normal control group received 2 mL of normal saline, group B treated with 500 mg/kg body weight of CES , group C PCOS control group received 2 mL of normal saline, and group D PCOS rats post-treated with 500 mg/kg body weight of CES daily through gastric gavage for 30 days. Estrus cyclicity, body and ovaries weights, biochemical and histological parameters were measured. Observed irregular estrus cyclicity and multiple cysts in PCOS rats, increase glycemia, ovarian weight, triglycerides, total cholesterol, low-density lipoprotein cholesterol, very low-density lipoprotein cholesterol, malondialdehyde, luteinizing hormone (LH), testosterone, and decrease high-density lipoprotein cholesterol, estradiol, progesterone, catalase, reduced glutathione (GSH), and superoxide dismutase levels, compared with control. The intervention of CES ameliorated and restored the estrus cyclicity reproductive hormone, biochemical, and structural alterations. Moreover, CES significantly decreased cystic follicles, LH, and testosterone levels, but increased estradiol concentration. This plant may be beneficial in the management and treatment of PCOS-related reproductive and metabolic disorders.

Polyphenols: Natural compounds with promising potential in treating polycystic ovary syndrome

Polyphenols are natural compounds used by plants as a defense system against various stresses. In recent years, the importance of these polyhydroxyphenols has extensively increased due to their potent cardioprotection, anti-carcinogenic, anti-oxidant, anti-apoptotic, and anti-inflammatory properties. Therefore, various studies have reported promising results from the studies investigating their efficacy as a therapeutic strategy in various disorders such as human malignancies, cardiovascular diseases, nervous system impairments, diabetes, metabolic syndrome, aging, and inflammation-associated disorders, as well as a polycystic ovarian syndrome (PCOS). Since oxidative stress, hormonal, metabolic, and endocrine disturbances have been shown to play a crucial role in the initiation/progression of PCOS, polyphenols are suggested to be an effective treatment for this disorder. Therefore, this study aimed to discuss the therapeutic potential of multiple polyphenols in PCOS.

Regulation of estrous cycle by Cynodon dactylon in letrozole induced polycystic ovarian syndrome in Wistars albino rats

Menstrual cycle is controlled by luteinizing hormone (LH) and follicle-stimulating hormone of anterior pituitary and regulated by gonadotropin-releasing hormone of hypothalamus. Any disturbance to this regulatory mechanism alters the pulsatile release of these hormones, especially LH; leads to polycystic ovarian syndrome (PCOS). Changes in vaginal cytology are used to interpret the changes in hormonal levels and modifications in estrous cycle. The aim of this study is to compare the pattern of vaginal cytology and body mass among PCOS rats which are treated with metformin and Cynodon dactylon. Twenty-four Wistar rats were selected and divided into four groups: control, induced, treatment, and referral. PCOS was induced in all groups except controls by giving letrozole through oral gavage for 21 days. After inducing PCOS, the referral and treatment group were treated for PCOS with metformin and C. dactylon respectively for next 21 days. Vaginal smear of all the groups were taken every day from day one and screened for estrous cycle. The body mass of the animals was measured on days 1, 21, and 42. Animals were sacrificed after 24 hours of the last dose and the reproductive organs were dissected out and weighed. Results of the study show the estrous cycle begins to revert after 1-week administration of C. dactylon; while the changes were slower in referral group. There was a rapid decrease in the body mass as well as reproductive organs among the treatment and referral group compared to that of induced and control. Finding of this study suggests that C. dactylon treats PCOS better than metformin.