this study was designed to compare the effect of clomiphene and letrozole in ovulatory stimulation in infertile women under intrauterine insemination who referred to mahdiyeh infertility clinic during 2008-2009. 106 infertile women were randomly divided into two equal groups. patients were treated with 5 mg of letrozole daily (in letrozole group) or 100 mg of clomiphene citrate daily (in clomip...

BACKGROUND Gonadotropins are protein hormones which are central to the complex endocrine system that regulates normal growth, sexual development, and reproductive function. There is still a lively debate on which type of gonadotropin medication should be used, either human menopausal gonadotropin or recombinant follicle-stimulating hormone. The objective of the study was to perform a systematic...

A new commercially available chemiluminescence immunoassay for the quantitative measurement of human chorionic gonadotropin and its beta-subunit in serum was compared with the enzyme immunoassay used in our routine laboratory. Human chorionic gonadotropin was determined in serum from pregnant women, as well as from women with abortus imminens, suspected ectopic pregnancies or with molar pregnan...

Polycystic ovary syndrome is a common cause of an ovulatory infertility. Drugs like Aromatase inhibitors, Human menopausal gonadotropin, used for ovulation induction. The aim this study was carried out to compare the therapeutic effects gonadotropin hormone versus oral ovarian stimulating agents. A prospective randomized controlled clinical trial in Salahdeen general hospital Tikrit from 1st Fe...

This Technical Bulletin reviews the indications for gonadotropin treatment in anovulatory women; outlines the recommended pretreatment evaluation, treatment regimens, and monitoring; describes the alternatives and adjuncts to treatment with gonadotropins; and summarizes the complications of gonadotropin treatment.

An isolated deficiency of pituitary gonadotropins was demonstrated in six 46 XY males, 22 to 36 years of age, with and without anosmia. Undetectable or low levels of serum follicle-stimulating hormone (FSH) and luteinizing hormone (LH) clearly separated hypogonadotropic from normal adult males. Chronic (8-12 wk) administration of clomiphene citrate caused no increase in serum FSH or LH in gonad...

Essential roles for gonadotropins in gonadal development and reproduction are well established. Over the past decade, however, the expression of luteinizing hormone receptor (LHR) has also been reported in the brain of various mammals and birds. Although suggestive, it has not yet been determined whether this expression pattern supports a novel function for gonadotropins. Here, we demonstrate a...

Background Our objective was to evaluate the effectiveness of clomiphene citrate (CC) vs. letrozole (L) plus human menopausal gonadotropin (hMG) in gonadotropin releasing hormone (GnRH) antagonist protocol in poor prognosis women with previous failed ovarian stimulation undergoing intracytoplasmic sperm injection (ICSI). MaterialsAndMethods This retrospective cohort study included cycles with C...

An isocratic high-performance liquid chromatographic technique was developed to measure levels of gamma-aminobutyric acid (GABA), glutamate, and taurine in the brain and pituitary of goldfish. Accuracy of this procedure for quantification of these compounds was established by evaluating anesthetic and postmortem effects and by selectively manipulating GABA concentrations by intraperitoneal admi...