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Therapeutic effects of Dioscorea on post-menopause-induced cardiac apoptosis in rats

, : Therapeutic effects of Dioscorea on post-menopause-induced cardiac apoptosis in rats. Chinese Journal of Integrative Medicine (): -

To evaluate the effects of Dioscorea on bilateral ovariectomies-induced cardiac Fasdependent and mitochondria-dependent apoptotic pathways. Forty-eight female Wistar rats at 6-7 months of age were equally divided into a sham-operated group, and a bilateral ovariectomized (OVX) group for 2 months, and the rats in the OVX group were further fed with 0, 250 or 750 mL/kg Dioscorea spp. daily in the 2nd month. The excised hearts were measured by positive terminal deoxynucleotidyltransferase UTP nick end labeling (TUNEL) assays, western blotting and reverse transcription-polymerase chain reaction. Dioscorea spp. decreased OVX-induced cardiac TUNEL-positive apoptotic cells; decreased OVX-induced TNF-alpha, Fas ligand, Fas death receptors, Fas-associated death domain, activated caspase-8, and -3 (Fas pathways); decreased OVX-induced Bad, Bax, Bax-to-Bcl2 ratio, activated caspase-9, and -3 (mitochondria pathway). Dioscorea spp. prevented ovariectomy-induced cardiac Fas-dependent and mitochondriadependent apoptotic pathways in rat models. The fifi ndings may provide possible therapeutic effects of dioscorea for potentially preventing cardiac apoptosis after ovariectomy or post-menopause.


PMID: 27299464

DOI: 10.1007/s11655-016-2602-2

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