Four groups of rats were
employed in this study, group 1 served as control, group 2 was given 50% glycerol (8 ml kg−1, i.m.), group 3, glycerol plus catechin
(40 mg kg−1, p.o. for 4 days, twice a day) and group 4 was given only catechin (40 mg kg−1, p.o.), respectively