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Diet-induced hypercholesterolemia impaired testicular steroidogenesis in mice through the renin-angiotensin system.
MedLine Citation:
PMID:  21536044     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Hypercholesterolemia and low testosterone concentrations in men are associated with a high risk factor for atherosclerosis. It is known that cholesterol serves as the major precursor for the synthesis of the sex hormones. The bioactive peptides of the renin-angiotensin-system localized in the gonads play a key role in the relation between cholesterol and testosterone by modulating steroidogenesis and inhibiting testosterone production. In the present work, we evaluated the effects of diet-induced hypercholesterolemia on circulating testosterone levels and its relationship with the testicular RAS-regulating specific aminopeptidase activities in male mouse. A significant decrease in serum circulating levels of testosterone was observed after induced hypercholesterolemia. The changes found in aminopeptidase activities suggest a role of Ang III and Ang IV in the regulation of steroidogenesis.
Authors:
José M Martínez-Martos; Marce Arrazola; María D Mayas; María P Carrera-González; María J García; María J Ramírez-Expósito
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-23
Journal Detail:
Title:  General and comparative endocrinology     Volume:  -     ISSN:  1095-6840     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-5-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370735     Medline TA:  Gen Comp Endocrinol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Inc.
Affiliation:
Experimental and Clinical Physiopathology Research Group BIO296, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain.
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