نتایج جستجو برای: reproductive hormones

تعداد نتایج: 162520  

Journal: :Journal of andrology 2012
Jaime Mendiola John D Meeker Niels Jørgensen Anna-Maria Andersson Fan Liu Antonia M Calafat J Bruce Redmon Erma Z Drobnis Amy E Sparks Christina Wang Russ Hauser Shanna H Swan

Urinary concentrations of metabolites of the anti-androgenic xenobiotic di-(2-ethylhexyl) phthalate (DEHP) were previously shown to be weakly associated with serum levels of several hormones in 2 disparate US populations: partners of pregnant women participating in the Study for Future Families and partners in infertile couples from Massachusetts General Hospital infertility clinic. The ob...

Journal: :Journal of pediatric endocrinology & metabolism : JPEM 2006
David E Reichman Perrin C White Maria I New Zev Rosenwaks

Congenital adrenal hyperplasia (CAH) is the most frequently encountered genetic steroid disorder affecting fertility. Steroid hormones play a crucial role in sexual development and reproductive function; patients with either 21- hydroxylase or 11β-hydroxylase deficiency thus face immense challenges to their fertility. Given the relevance of CAH in reproductive medicine as well as the diagnostic...

Journal: :Human reproduction update 2002
D M de Kretser M P Hedger K L Loveland D J Phillips

The regulation of reproductive processes involves a complex network of communication systems between the brain, endocrine organs, the gonads and other reproductive tissues. Classically, our understanding has focused on the role of endocrine hormones, but more recently interest has also dwelt on the paracrine and autocrine regulation of these cell systems. In this review, the structure and physi...

Journal: :Environmental toxicology and pharmacology 2015
Xiao Geng Hua Shao Zhihu Zhang Jack C Ng Cheng Peng

Malathion has a broad range of toxicities while its reproductive effects have not been fully elucidated. In this study, we treated animals with malathion by gavage at doses of 0, 33.75, 54, and 108 mg/kg for 60 days and evaluated the alterations in histology, biochemistry and serology. Malathion caused the reduction in the sperm counts and motility. The reduced body and testis weights were coup...

Journal: :Journal of neuroendocrinology 2007
Andrea C Gore

Female reproductive function is controlled by complex interactions of the brain, pituitary gland and ovary. Each of these organs produces unique hormones, and each hormone acts upon the other organs to affect a response. Differentiating the causes and the consequences of reproductive senescence in mammals is thus a 'chicken and egg' puzzle. Surprisingly, recent evidence indicates a more importa...

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