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  • Title: Cytoprotective activity of mulberry leaf extract against oxidative stress-induced cellular injury in rats.
    Author: Jaruchotikamol A, Pannangpetch P.
    Journal: Pak J Pharm Sci; 2013 Jan; 26(1):163-8. PubMed ID: 23261743.
    Abstract:
    Morus alba Linn. (MA), mulberry leaves have been used as a beverage for prevention of various diseases including hyperlipidemia and hyperglycemia. Recently, the antioxidant activities of the MA leaf extract have been reported. The objective of this study was to investigate the effect of the MA leaf extract on free radical-induced cellular injury. In the in vitro models, the extract scavenged stable free radical (1, 1-diphenyl-2-picrylhydrazyl; DPPH) in a concentration-dependent manner with an IC(50) of 20.10 ± 0.78 μ g/ml. The extract protected the erythrocytes from free radical (2, 2'-azobis (2-amidinopropane) dihydrochloride; AAPH)-induced hemolysis with an IC(50) of 74.22 ± 9.87 μg/ml. Additionally, the extract significantly prevented the gastric mucosal injury induced by ischemia-reperfusion (I/R) in rats when given orally at doses of 0.25 and 0.50 g/kg/day for 3 consecutive days (p < 0.05; n=7). However, this effect was not found when the higher doses (1 and 2 g/kg/day) of the extract were tested. In conclusion, these results indicate that the MA leaf extract possesses the cytoprotective activity against free radical-induced cell injury. Therefore, when given at the appropriate dose range, the mulberry leaf may potentially be used as a food supplement in patients with certain diseases in which the oxidative stress-induced cellular injury is pathologically involved.
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