G6PC1 and Hyperglycemia: Polysaccharides inhibited hyperglycaemia by regulating the expression of several key enzymes in the glucose metabolism pathway, such as hepatic glucokinase, phosphofructokinase, G6PD, hepatic glycogen phosphorylase, fructose-1,6-bisphosphatase, phosphoenolpyruvate carboxykinase, and G6Pase (Xiao et al. 2012).