title: Excessive dietary calcium in the disruption of structural and functional status of adult male reproductive system in rat with possible mechanism.
abstract: Calcium is essential for functioning of different systems including male reproduction. However, it has also been reported as chemo-castrative agent. The study has been undertaken to elucidate the effect of excessive dietary calcium on male reproductive system in animals with possible action. Adult male healthy rats fed CaCl(2) at different doses (0.5, 1.0 and 1.5 g%) in diet for 13 and 26 days to investigate reproductive parameters as well as the markers of oxidative stress. Significant alteration was found (P < 0.05) in testicular and accessory sex organs weight, epididymal sperm count, testicular steroidogenic enzyme (Δ(5) 3β-HSD and 17β-HSD) activities, serum testosterone, LH, FSH, LPO, activities of antioxidant enzymes, testicular histoarchitecture along with adrenal Δ(5) 3β-HSD activity with corticosterone level in dose- and time-dependent manner. Overall observations suggest that excessive dietary calcium enhances the generation of free-radicals resulting in structural and functional disruption of male reproduction.
authors.affiliation: Endocrinology & Reproductive Physiology Laboratory, Department of Physiology, University College of Science & Technology, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata, 700 009 West Bengal, India. amark_chandra@yahoo.co.in
authors.forename: Amar
authors.initials: A
authors.lastname: K Chandra
authors.forename: Pallav
authors.initials: P
authors.lastname: Sengupta
authors.forename: Haimanti
authors.initials: H
authors.lastname: Goswami
authors.forename: Mahitosh
authors.initials: M
authors.lastname: Sarkar
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism; D002136:Calcium, Dietary / Q000008:administration & dosage / Q000009:adverse effects*; D003345:Corticosterone / Q000097:blood; D004305:Dose-Response Relationship, Drug; D005609:Free Radicals / Q000378:metabolism; D008297:Male; D009929:Organ Size / Q000187:drug effects; D018384:Oxidative Stress / Q000187:drug effects*; D051381:Rats; D012098:Reproduction / Q000187:drug effects* / Q000502:physiology; D013076:Sperm Count; D013737:Testis / Q000187:drug effects* / Q000201:enzymology / Q000473:pathology; D013739:Testosterone / Q000097:blood
chemical_list: D000975:Antioxidants; D002136:Calcium, Dietary; D005609:Free Radicals; D013739:Testosterone; D003345:Corticosterone