Kumar B Dinesh, Krishnakumar K, Jaganathan Saravana Kumar, Mandal Mahitosh
Department of Pharmaceutics, St. James College of Pharmaceutical Sciences, Chalakudy, Kerala, India.
Pharmacogn Mag. 2013 Jan;9(33):72-5. doi: 10.4103/0973-1296.108145.
Stem barks of Mangifera indica contain a rich content of mangiferin (xanthone glucoside), whereas Murraya koenigii leaves contain rich sources of mahanimbine (carbazole alkaloid) and used traditionally for the treatment of diabetes.
To investigate the effects of mangiferin (xanthone glucoside) and mahanimbine (carbazole alkaloid) on glucose utilization in 3T3-L1 cells.
Mangiferin was isolated from stem barks of Mangifera indica and mahanimbine was isolated from Murraya koenigii leaves. These isolated compounds were subjected to MTT assay and glucose utilization test with 3T3-L1 cells.
Treatment of the 3T3-L1 cells with mangiferin and mahanimbine increased the glucose utilization in a dose-dependent manner. At a concentration of 1 mM, mangniferin showed 2-fold increase in glucose utilization compared with untreated control. In case of mahanimbine, the observed effect at 1 mM was almost equivalent to positive control (insulin at 1 μM). Moreover, MTT assay showed that both of these compounds were less toxic at a concentration of 1 mM (nearly 75% cells are viable).
The present results indicated that these natural products (mangiferin and mahanimbine) exhibited potential ethnomedical uses in management of diabetes.
芒果的茎皮含有丰富的芒果苷(氧杂蒽酮葡糖苷),而九里香的叶子含有丰富的马汉九里香碱(咔唑生物碱),传统上用于治疗糖尿病。
研究芒果苷(氧杂蒽酮葡糖苷)和马汉九里香碱(咔唑生物碱)对3T3-L1细胞葡萄糖利用的影响。
从芒果的茎皮中分离出芒果苷,从九里香的叶子中分离出马汉九里香碱。将这些分离出的化合物用于3T3-L1细胞的MTT试验和葡萄糖利用测试。
用芒果苷和马汉九里香碱处理3T3-L1细胞后,葡萄糖利用呈剂量依赖性增加。在1 mM浓度下,芒果苷的葡萄糖利用比未处理的对照增加了2倍。对于马汉九里香碱,在1 mM时观察到的效果几乎与阳性对照(1 μM胰岛素)相当。此外,MTT试验表明,这两种化合物在1 mM浓度下毒性较小(近75%的细胞存活)。
目前的结果表明,这些天然产物(芒果苷和马汉九里香碱)在糖尿病管理中具有潜在的民族医学用途。