This study was carried out to investigate the hepato-protective properties of combined extracts ofMoringa oleifera (MO) and Vernonia amygdalina (VA) in streptozotocin (STZ) induced diabetic albinoWistar rats. The study design involved 42 rats weighing 120 to 180 g which were divided into 7 groupsof 6 rats each. Groups 1 and 2 representing normal and diabetic control (NC and DC) received 0.5 ml ofdimethylsulphoxide (DMSO). Group 3 received 5 IU/kg body weight insulin intraperitoneally and group 4received 5 mg/kg body weight glibenclamide (GB) orally; groups 5 and 6 received 500 mg/kg bodyweight of MO and VA, respectively while group 7 the combined treatment group received 250 mg/kgbody weight of each extract. After 28 days of treatment, the animals were anaesthetized and sacrificedto obtain blood by cardiac puncture. Serum was collected and assayed for alanine aminotransaminase(ALT), aspartate aminotransferases (AST) and alkaline phosphatase (ALP), total protein (TP) andalbumin. The results showed that ALT, AST and ALP levels of the treatment groups decreasedsignificantly (P<0.05) when compared with NC and DC, but were higher than reference drugs. Thecombined extract significantly (P<0.05) decreased the blood glucose sugar level, and this actioncompared favourably with the results obtained with the standard drugs. There was a significantincrease (P<0.05) in TP and albumin levels of the treatment groups when compared with DC. Fastingblood glucose (FBG) showed significant decrease (P<0.05) in all treated groups compared to NC andDC. Moreover, the body weight change for the treatment groups showed a progressive decrease(P<0.05) except for groups treated with VA and MO when compared with NC. The results thus, show thatsingle and combined extracts of MO and VA has hepatoprotective effects and may be safer inpreventing diabetes induced damage to the liver.
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