An allied approach for in vitro modulation of aldose reductase, sorbitol accumulation and advanced glycation end products by flavonoid rich extract of Coriandrum sativum L. seeds

Traditional herbal medicines are attaining more popularity and are being widely practiced. Coriandrum sativum L. is one of the oldest herbal medicinal plants valued for its nutritional and medicinal properties. Present investigation was focussed on evaluation of attenuating potential of flavonoid rich extract of C. sativum (FCS) seeds against pathogenic markers of diabetic complications i.e. advanced glycation end products (AGEs), sorbitol and aldose reductase (ALR); by using in-vitro methods. Gas chromatography–mass spectrometry (GC–MS) and Infrared spectroscopy of FCS revealed the presence of different flavonoids. Results demonstrated that FCS has produced 79.80% inhibition of AGEs formation. Additionally, FCS was effective against sorbitol accumulation and ALR inhibition with IC(50) values of 221 μg/ml and 6.08 μg/ml respectively. Molecular docking was conducted against three binding site for ALR, RAGEs and sorbitol dehydrogenase to explore their binding interactions with identified flavonoids. The constituents F(2), F(4) and F(6) have shown good binding interactions with all the receptors. The visualisation of the docked complexes revealed the occurrence of hydrophobic forces and hydrogen bonding in receptor and docked constituents. The results were in support with experimental inhibitory activities of FCS against these biomarkers and provide a considerable basis for the identification and development of new inhibitors.