Flavonoid chemical composition and antidiabetic potential of Brachychiton acerifolius leaves extract

作     者：Aisha Hussein Abou Zeid Mohamed Ali Farag Manal Abdel Aziz Hamed Zeinab Abdel Aziz Kandil Radwa Hassan El-Akad Hanaa Mohamed El-Rafie 

作者机构：Pharmacognosy DepartmentNational Research Centre Pharmacognosy DepartmentCollege of PharmacyCairo University Therapeutic Chemistry DepartmentNational Research Centre 

出 版 物：《Asian Pacific Journal of Tropical Biomedicine》 (亚太热带生物医学杂志（英文版）)

年 卷 期：2017年第7卷第5期

页      面：389-396页

核心收录：

学科分类：1008[医学-中药学(可授医学、理学学位)] 1006[医学-中西医结合] 100602[医学-中西医结合临床] 10[医学] 

基　　金：Supported by National Research Center fund(Grant No.7/5/2) 

主　　题：STZ-induced diabetes Diaion fractionation Flavonoid glucuronides Brachychiton acerifolius 

摘      要：Objective:To evaluate Brachychiton acerifolius leaf extracts as antidiabetic potential agent and to identify the main active constituents using bioactivity guided ***:In vitro antioxidant activity was evaluated for *** different extracts using DPPH assay and vitamin C as *** activity was then determined using STZ-induced rats treated daily with ethyl acetate and 70% ethanol leaf extracts for4 weeks at a dose of 200 g/kg body weight against gliclazide reference *** glucose,a-amylase,lipid profile,liver function enzymes and oxidative stress markers were assessed along with histopathological study for liver and pancreatic *** and structural elucidation of active compounds were made using Diaion and Sephadex followed by spectral ***:The results indicated that ethyl acetate and ethanol leaf extracts exhibited the strongest antioxidant activity compared to that of vitamin C(IC500.05,0.03 and 12 mg/m L,respectively).Both extracts showed potent anti-hyperglycemic activity evidenced by a significant decrease in serum glucose levels by 82.5% and 80.9% and a-amylase by45.2% and 53.6%,as compared with gliclazide 68% and 59.4%,*** of ethanol extract resulted in the isolation of 9 flavonoids including apigenin-7-O-arhamnosyl(1/2)-b-D-glucuronide,apigenin-7-O-b-D-glucuronide,apigenin-7-O-b-Dglucoside and ***:This study highlights the potential use of *** leaf extract enriched in flavones for the treatment of diabetes that would warrant further clinical trials investigation.