Abstract
The aim of the present study was to investigate the pancreatic regeneration potential of of diferent fractions of the ethanol extract Clitoria ternatea L., Fabaceae. The antidiabetic and antihyperlipidemic potential was evaluated in streptozotocin-induced diabetic rats and correlated with its in vivo and in vitro antioxidant activity. The extract and its fractions were initially screened for acute and sub-chronic antidiabetic activity in the dose range of 100–200mg/kg. The most potent extract and fractions were further evaluated for pancreatic β-cells regeneration activity along with antioxidant and antihyperlipidemic activity. The polyphenolic, flavonoid and flavanone contents were assessed and correlated with its antidiabetic activity. The most significant pancreatic regeneration activity, antidiabetic and antihyperlipidemic activity and was shown by ethanol extract and butanol soluble fraction at a dose level of 200mg/kg, while rutin was found to be least potent. In conclusion, pancreatic regeneration studies of ethanol extract treated rats show nesidioblastosis. It is also suggested that the factors causing regeneration are present within the pancreas. The newly generated islets may have formed from the ductal precursor cells and reduced oxidative stress helps in restoration of β-cell function.
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