Table 3.

Content eNOS and iNOS in liver and blood.

	Serum		Liver (1 mL−1 × 106 Cells)
	eNOS U/mL	iNOS ng/mL	eNOS U/mL	iNOS ng/mL
Control	2.33 ± 0.26	15.38 ± 0.82	3.79 ± 0.17	2.30 ± 0.34
CCl4	1.27 ± 0.07	96.51 ± 5.21	1.26 ± 0.20	11.28 ± 0.79
	p < 0.05	p < 0.001	p < 0.01	p < 0.001
CCl4 + melatonin	1.72 ± 0.21	38.88 ± 3.06	2.05 ± 0.13	4.76 ± 0.34
	p > 0.1	p < 0.001	p < 0.01	p < 0.01
	p1 > 0.05	p1< 0.001	p1 > 0.05	p1 < 0.001

Notes: The results are presented as mean ± SD (n = 12); significantly differences: p – versus control; p₁ – versus CCl₄ group. eNOS – endothelian synthase NO; iNOS – inducible synthase NO.