Effects of L-arginine on serum nitric oxide, nitric oxide synthase and mucosal Na+-K+-ATPase and nitric oxide synthase activity in segmental small-bowel autotransplantation model

Table 1 Serum NO contents (μmol/L) at different time points of IR (mean±SE).

	n	Pre-IR 1h	post-IR 24 h	post-IR 48 h	post-IR 72 h	post-IR
EG	5	75.6±16.2a	152.2±61.4	82.2±24.0a	74.2±21.9a	95.6±25.7
CG	5	72.5±12.4	60.8±31.6c	54.0±24.3c	58.6±24.1	74.8±35.0

^aP<0.05 vs 1 h post-IR in the experimental group (EG);

^cP<0.05 vs the value at the same time point in EG.

Table 2 Serum NOS activity (U/mL) at different time points of IR (mean±SE).

	n	Pre-IR	1h post-IR	24 h post-IR	48 h post-IR	72 h post-IR
EG	5	1.93±0.91	2.53±1.43	1.39±0. 42	1.49±0.40	1.31±1.01
CG	5	1.86±0.93	2.62±1.07	2.37±1.37	1.59±0.62	1.63±0.57

Table 3 Mucosal NOS activity (U/mg) at different time points of IR (mean±SE).

	n	Pre-IR	1h post-IR	24 h post-IR	48 h post-IR	72 h post-IR
EG	5	0.79±0.04	0.46±0.12b	0.57±0.14a	0.61±0.11a	0.63±0.12a
CG	5	0.72±0.12	0.60±0.07c	0.58±0.18c	0.64±0.17	0.62±0.17

^aP<0.05 vs pre-IR in EG;

^bP<0.01 vs pre-IR in the experimental group (EG);

^cP<0.05 vs pre-IR in control group (CG), respectively.

Table 4 Mucosal Na⁺-K⁺-ATPase activity (μmol /mg) at different time points of IR (mean±SE).

	n	24 h post-IR	48 h post-IR	72 h post-IR
EG	5	3.29±0.79	3.89±1.43a	3.96±0.86b
CG	5	3.17±0.64	3.58±0.76a	3.67±0.81a

Note: Normal value of ileum at the same site sampled before IR (2.48±0.59 μmol /mg, n = 5).

^aP<0.05 vs normal value;

^bP<0.01 vs normal value.