Effect of acupuncture on renal function and pathologic changes of kidney in rabbits with nephritis / 中国针灸

ABSTRACT

<p><b>OBJECTIVE</b>To observe the effect of acupuncture on cationized bovine serum albumin (C-BSA) nephritis model in rabbits and to explore its mechanism.</p><p><b>METHODS</b>Fifty rabbits were randomly divided into a blank group, a model group, a metoprolol group, a irbesartan group and an acupuncture group, 10 rabbits in each group. The model was established by ear vein intravenous injection with C-BSA. The positive control groups were treated by intragastric administrated with metoprolol and irbesartan, respectively. The acupuncture group was treated by acupuncture at "Fengmen" (BL 12) and "Shenshu" (BL 23). No interventions were added on the blank group and the model group. The changes of blood pressure (BP), heart rate (HR), plasma norepinephrine (NE), serum creatinine (Scr), blood urea nitrogen (BUN) and 24 hours urine protein (24 h UP) in rabbits at the time points of 3rd, 6th and 8th week of treatment were observed.</p><p><b>RESULTS</b>After the model was established, the Scr of (194.30 +/- 20.09) micromol/L, BUN of (9.19 +/- 0.66) mmol/L and 24 h UP of (277.70 +/- 20.09) mg/24 h in the model group were all higher than the Scr of (66.03 +/- 4. 76) micromol/L, BUN of (4.11 +/- 0.71) mmol/L and 24 h UP of (14.28 +/- 1. 47) mg/24 h in the blank group (all P < 0.01), and the diffused mesenteria hyperplasia and the increase of intercapillary cells in the model group were showed in the pathological sections. After 3 weeks of treatment. The Scr of (99.82 +/- 9.29) micromol/L, BUN of (6.32 +/- 0.75) mmol/L and 24 h UP of (189.67 +/- 15.45) mg/ 24 h in the acupuncture group were all decreased significantly, furthermore, the decrease of BP, HR, NE were better than the other treatment groups (P < 0.05, P < 0.01). Except the level of 24 h up and HR at 8th week, other results were as same as the 3rd week.</p><p><b>CONCLUSION</b>Acupuncture can improve the function of kidney, decrease the content of 24 h UP and the underlying therapeutic mechanism could be correlated with that acupuncture can lower excitability of sympathetic nerve and alleviate the renal pathological lesion induced by nephritis.</p>