Fig. 3

Possible mechanisms involved in the inhibition of polyol pathway enzymes by pawpaw (Carica papaya) extract, and its amelioration of diabetic complications. ADR, aldose reductase; SDH, sorbitol dehydrogenase; GSH, reduced glutathione; GSSG, glutathione disulfide; NADP+, nicotinamide adenine dinucleotide phosphate; NADPH, reduced nicotinamide adenine dinucleotide phosphate; NAD+, nicotinamide adenine dinucleotide; NADH, reduced nicotinamide adenine dinucleotide