UNLABELLED BACKGROUND The objective of this investigation was to establish independent predictors of follicle-stimulating hormone (FSH) threshold dose in anovulatory women undergoing ovulation induction with FSH preparations. METHODS One hundred and fifty-one patients with WHO Group II anovulatory infertility failing to ovulate or conceive on clomiphene citrate underwent ovarian stimulation w...

Clomiphene citrate is a white to pale yellow, essentially odorless, crystalline powder. It is freely soluble in methanol; soluble in ethanol; slightly soluble in acetone, water, and chloroform; and insoluble in ether. CLOMID is a mixture of two geometric isomers [cis (zuclomiphene) and trans (enclomiphene)] containing between 30% and 50% of the cis-isomer. Each white scored tablet contains 50 m...

to a receptive endometrium suitable for implantation. One of the major drugs used for infertility treatment is clomiphene citrate (a non steroidal synthetic compound with both estrogenic and anti-estrogenic activity). Clomiphene citrate stimulates ovulation by competitively inhibiting the estrogen (E) binding to the hypothalamic estrogen receptors (ER), thereby releasing the hypothalamus from t...

Polycystic ovary syndrome is an endocrinological disorder where there is hyperandrogenism, ovarian dysfunction and multiple ovarian cysts. The most common presenting features are hirsutism, acne, metabolic syndrome and biochemical hyperandrogenism. Patients also have hyperlipidemia and an impaired glucose metabolism. Treatment involves oral contraceptive pills for menstrual abnormalities and hy...

In 2007, the European Society for Human Reproduction and Embryology (ESHRE) and the American Society for Reproductive Medicine (ASRM) issued guidelines in Thessaloniki regarding the use of metformin and clomiphene for the induction of ovulation in patients with anovulatory polycystic ovary syndrome (PCOS). According to these guidelines, the use of metformin should be limited to patients with im...

Objective: To observe the effect of vitamin C and E administration on endometrial thickness and vascularity in clomiphene citrate stimulated endometrium Method: Research design was randomized clinical trial. Both groups were stimulated with clomiphene citrate. Treatment group was given vitamin C and E, while control group was given placebo. Transvaginal ultrasound examination is used to assess ...

Clomiphene citrate is capable of interacting with estrogen-receptor-containing tissues, including the hypothalamus, pituitary, ovary, endometrium, vagina, and cervix. It may compete with estrogen for estrogen-receptor-binding sites and may delay replenishment of intracellular estrogen receptors. Clomiphene citrate initiates a series of endocrine events culminating in a preovulatory gonadotropin...

background: clomiphene citrate (cc) an agonist and antagonist of estrogen, is the first line treatment in ovarian stimulation. anti-estrogenic effect of cc in endometrial thickness and cervical mucus has negative effect on pregnancy rate. letrozole is an aromatase inhibitor has been seen that has acceptable pregnancy rate compared to cc. objective: the aim of this study was to compare the effic...

Spermatogenesis is a fascinating biological process aiming to generate haploid spermatozoa from diploid spermatogonia through a specific hormonal network between gonadotropins and steroids. Increasing evidence suggests that the primary female sex hormone estrogen plays an active role in this process. This research points out on the role of estrogen during lizard spermatogenesis by using three e...