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Article Publish Status: FREE
Abstract Title:

andinhibitory effects ofseed onα-amylase and α-glucosidase enzymes.

Abstract Source:

Heliyon. 2020 Mar ;6(3):e03618. Epub 2020 Mar 25. PMID: 32258473

Abstract Author(s):

Reuben Agada, Wurochekke Abdullahi Usman, Sarkiyayi Shehu, Dluya Thagariki

Article Affiliation:

Reuben Agada

Abstract:

The present study was aimed to investigate theandinhibitory effects ofseeds onα-amylase and α-glucosidase enzymes, as this is known to be an antidiabetic mechanism. Analysis of the extracts of the seeds for phytochemicals revealed the presence of a significant amount of saponins, alkaloids, flavonoids, phenols, terpenoids, and steroids. The seed extracts ofexhibited good antioxidant capacity using 2, 2-diphenyl-1-picryl hydroxyl (DPPH), thiobarbituric reactive substance (TBARS) and ferric reducing antioxidant power (FRAP) method. The results of the inhibitory studies of the extracts revealed that the hexane extract followed by the ethyl acetate extract was the most potent inhibitor ofα-amylase and α-glucosidase enzyme when compared to other extracts using their ICvalues. In the animal study, different doses (250, 500 and 1000 mg/kg/body weight) of the extracts ofseed were administered orally for 120 min, to normal and streptozotocin-induced diabetic rats, and were compared with acarbose 100 mg/kg/body weight and control group for the effect on postprandial hyperglycemia. The extract of ethyl acetate (at doses of 250, 500 and 1000 mg/kg/body weight) significantly reduced postprandial glucose levels in these animals. The characterization of hexane and ethyl acetate extracts by GC-MS analysis revealed 20 bioactive compounds while the FTIR analysis confirmed the presence of this functional groups: -C=C, -C-Cl, -C-O, -O-H, -CH, -C=O, -C=C=C, -N=C=S, -O=C=O and -N-H inseed extracts. It was concluded that the inhibition ofα-amylase and α-glucosidase enzymes and the prevention of oxidative stress in postprandial hyperglycemia could be some of the possible mechanisms by which they exert their anti-diabetic properties.

Study Type : Animal Study, In Vitro Study

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