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Oxidative stress has been implicated as a crucial pathogenic factor in the development of postmenopausal osteoporosis. Milk-derived antioxidative peptides are gaining much attention toward the development of prodrugs for alleviating several human diseases, including osteoporosis. The aim of the present study was to determine whether antioxidant peptides are good candidates for alleviating postmenopausal osteoporosis.

In the present study, an ovariectomized (OVX) osteoporotic rat model was used to investigate the protective effects of buffalo milk casein-derived novel peptide VLPVPQK (PEP) against OVX-induced bone loss and the related mechanisms.

Results of the present study indicated that daily administration of antioxidative peptide PEP at 50 and 100 μg/kg for 8 wk prevents body weight gain, uterine weight loss, and atrophy of endometrial lumen. Moreover, PEP increased …