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. Twentyfour 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.

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Polycystic ovarian syndrome is a female reproductive defect with a prevalence rate of 2.2% to 26% in the world and Indian adolescents at a rate of 9.13%. The polycystic ovarian syndrome is a heterogeneous endocrine syndrome related to increase in the secretion of hyperandrogenemia with increasing risk of hyperinsulinism, type 2 diabetes mellitus, Hirsutism dyslipidemia, cardiovascular diseases and finally leading to an endometrial tumor. The endocrine hormones are regulated by various factors like environment, photoperiod, ambient temperature, relative humidity availability of food, etc. Cynodon dactylon or Bermuda grass is seen all over the world. C. dactylon is a stoloniferous, hardy perennial grass, very much variable with long rapid growing, rooting at nodes, forming a dense tuft on the top of the soil.C.dactylon plant was collected and 100gm of plant powder was mixed with 1,000ml of distilled water and heated till boiling temperature. The mixture was filtered and lyophilization. All the animals were induced for PCOS by giving Letrozole with an oral feeding needle for 21 days and the vaginal smear was examined to confirm PCOS.From 22-42 days, the animals were treated with the drug and Metformin. The animals were divided with four groups as Control, Induced group, treatment group with 500 mg/kg (Cynodon dactylon ), and Referral group 100mg/kg (Metformin). After 24hr of the last dose, the animals were sacrificed. Blood and tissue were collected for analysis. IGF-1R. LEPTIN is a gene which mainly acts on the hypothalamus in regulating the gonadotropin release hormone and gonadotropin secretion it regulates the energy level and adipose tissue storage in the body. SIRT1 is a nicotinamide adenosine dinucleotide which increases the insulin sensitivity and decreases insulin resistance by modifying the insulin signal transduction pathway.The gene expression LEPTIN, IGF-1R, SIRT1 shows clearly, the reversal of the animal to normal condition is mainly due to the antihyperlipedemic and antidiabetic activity of the plant.