Table 4.

Effect of resveratrol on the glutathione (GSH), vitamin C and calcium content in the lens in diabetic rats.

Parameter/Group	C	D	D+R10	D+R20
GSH (µmol/g lens)	4.10 ± 0.61	0.78 ± 0.13 ***	0.75 ± 0.11 ***	0.74 ± 0.10 ***
Vitamin C (µg/g lens)	7.69 ± 0.05	7.17 ± 0.02 *	7.20 ± 0.02 *	7.21 ± 0.06 *
Calcium (µg/g lens)	42.6 ± 2.1	53.8 ± 3.1 *	60.3 ± 2.5 **	50.4 ± 4.9

C—control, non-diabetic rats; D—diabetic rats; D+R10—diabetic rats receiving resveratrol (10 mg/kg po for 4 weeks); D+R20—diabetic rats receiving resveratrol (20 mg/kg po for 4 weeks). Results are presented as means ± SEM (n = 8–9). * p < 0.05, ** p < 0.01, *** p < 0.001 – statistically significantly different from the C group.