Design and synthesis of novel pyranone-based insulin sensitizers exhibiting in vivo hepatoprotective activity
作者:Atul Goel、Amrita Parihar、Pratibha Mishra、Salil Varshney、Pankaj Nag、Muheeb Beg、Anil Gaikwad、S. K. Rath
DOI:10.1039/c3md00178d
日期:——
Serious hepatic and cardiovascular complications after treatment with the thiazolidinedione (TZD) class of insulin sensitizers have significantly retarded the advancement of new TZD-based peroxisome proliferator-activated receptor agonists that bind with high affinity and selectivity. The aim of the present study is to design new antihyperglycemic agents that promote insulin sensitivity through partial adipogenesis as well as demonstrate beneficial hepatoprotective activity. The results indicated that among forty screened compounds, three of the novel pyranones at a dose of 10 μM increased the preadipocyte differentiation into adipocytes in 3T3-L1 cell lines. They showed an insulin-sensitizing effect by significantly increasing the glucose uptake and exhibited insulin resistance reversal. These compounds at a dose of 20 mg kg−1 significantly protected against thioacetamide-induced hepatotoxic changes in the serum biochemistry as compared to standard hepatoprotectant silymarin and also ameliorated the histopathological alterations in the liver tissues after acute liver injury in Swiss mice.
使用噻唑烷二酮(TZD)类胰岛素增敏剂治疗后会出现严重的肝脏和心血管并发症,这极大地阻碍了以 TZD 为基础、具有高亲和力和选择性结合的过氧化物酶体增殖物激活受体激动剂新药的开发。本研究旨在设计新的降糖药物,通过部分脂肪生成促进胰岛素敏感性,并显示出有益的保肝活性。研究结果表明,在筛选出的 40 个化合物中,3 个新型吡喃酮类化合物在 10 μM 剂量下可促进 3T3-L1 细胞系中的前脂肪细胞分化为脂肪细胞。这些化合物具有胰岛素增敏作用,能显著增加葡萄糖摄取量,并能逆转胰岛素抵抗。与标准保肝剂水飞蓟素相比,剂量为 20 毫克/千克-1 的这些化合物能明显防止硫代乙酰胺诱导的血清生化肝毒性变化,还能改善瑞士小鼠急性肝损伤后肝组织的组织病理学改变。