Background: Formaldehyde is a chemical that used in fixed tissues and bodies. Formaldehyde during dissection of cadaver, evaporate and be released. Studies have shown that the gas increase endogenous opioids, nitric oxide and cytokines in plasma. These impacts can affect on gonadotropin hormones. The aim of this study was to investigate possible changes in gonadotropin and epithelial cells of t...

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...

Involutional changes in the androgenic activity of the male body occur gradually and exhibit high intraand interpopulational differentiation. These differences make quantitative description of physiological ageing of the male endocrine system considerably difficult. There are also no commonly accepted normal levels for gonadotropin and sex hormone. In the present study the authors have made an ...

Determination of biological activity of gonadotropin hormones is essential in reproductive medicine and pharmaceutical manufacturing of the hormonal preparations. The aim of the study was to adopt a G-protein coupled receptor (GPCR)-mediated signal transduction pathway based assay for quantification of biological activity of gonadotropins. We focussed on studying human chorionic gonadotropin (h...

Twenty Pasundan heifers were used in this study to determine the economic estimation of cattle induced with prostaglandins and gonadotropin-releasing hormones. The cows randomly divided into two groups 10 each. first group came from breeders who are members Rundayan Sawargi Group, Karya Mukti Village, Cibalong District, Garut Regency second Mekar Tani 2 Livestock having their address at Singasa...

This study investigates ovulation and egg deposition behaviors in the anuran Eleutherodactylus coqui from Puerto Rico in response to stimulation with gonadotropin and gonadotropin releasing hormones. Five hormones were tested by injection over a range of doses, including mammalian LHRH, avian LHRH, fish LHRH, D-Ala6, des-Gly10 ethylamide LHRH and hCG. We report a low level of ovulation and egg ...

A better word is infertile....the word “sterile” has negative connotations. On a purely theoretical level, males with PWS should be able to correct their infertility if they receive gonadotropin replacement or if we knew of a way to restore endogenous gonadotropin secretion. The testicles are generally normal (except in cases of testicular damage due to maldescent and/or surgical damage) Howeve...

M.J. Zamiri Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran [email protected] Introduction Since the discovery of kisspeptin and gonadotropin-inhibitory hormone (GnIH) our understanding of the vertebrate reproductive physiology has greatly increased. Gonadotropinreleasing hormones (GnRH) is a hypothalamic decapeptide secreted into the hypothalamohypophysea...