Table 4. Effects of theaflavin on glycogen metabolism in control and experimental animals.

Groups	Glycogen synthase (µ moles of UDP formed/h/mg protein)	Glycogen phosphorylase (µ moles Pi liberated/h/mg protein)	Liver glycogen (mg/g tissue)	Muscle glycogen (mg/g tissue)
Control	820.16 ± 7.13	587.33 ± 7.20	46.83 ± 2.48	17.50 ± 1.64
Normal + Theaflavin 100 mg/kg b.wt	817.66 ± 6.77	586.50 ± 5.20	47.66 ± 2.58	17.83 ± 1.47
Diabetes	514.83 ± 13.22	787.50 ± 11.58b	21.83 ± 4.40c	10.66 ± 0.81
Diabetic + Theaflavin 100 mg/kg b.wt	795.66 ± 10.63	660.83 ± 9.17b	35.50 ± 4.37c	15.50 ± 1.51
Diabetic + Metformin 100 mg/kg b.wt	798.40 ± 11.20	662.55 ± 8.46	37.67 ± 4.80	17.80 ± 1.42

Notes: Values are given as mean ± SD for six animals in each group. Values are considered significantly different at P < 0.05 with post hoc LSD test *P < 0.05.

^aControl vs. Drug control (Theaflavin alone treated rats).

^bControl rats vs. Diabetic rats.

^cDiabetic rats vs. Theaflavin 100 mg/kg.

^dDiabetic rats treated with Theaflavin 100 mg/kg vs. Metformin (500 mg/kg).