参附注射液对家兔急性肾缺血再灌注损伤的预防作用及机理研究  

Shenfu injection prevents kidney from acute ischemia-reperfusion injury in rabbits

作　　者：杨树龙[1] 冯志强[2] 邬丽莎[2] 李莉华[2] 

机构地区：[1]浙江大学医学院生理学教研室,浙江杭州310006 [2]泸州医学院生理学教研室,四川泸州646000

出　　处：《中国病理生理杂志》2003年第3期353-356,共4页Chinese Journal of Pathophysiology

基　　金：四川省教委自然科学基金重点科研项目 (川教 1997No .13 3号 )

摘　　要：目的 :观察参附注射液 (SF)对急性肾缺血 -再灌注损伤 (I-R)的预防作用及探讨其机理。方法 :采用左肾切除右肾动静脉夹闭 1h再灌注 3h致肾损伤的模型 ,术前连续 4d给予SF 2mL/kg,0 9%NaCl 2mL/kg (iv)。检测SF对肾I-R后血清和肾组织中超氧化物歧化酶 (SOD)、脂质过氧化产物丙二醛 (MDA) ,肾组织中NO、Na+ 、水平、WBC滞留数 ,肾小管计分及肾组织的超微结构的影响。结果 :SF明显降低肾I -R血和肾组织中MDA含量及肾组织中WBC滞留数、肾小管计分和Na+ 浓度 ;明显升高血和肾组织中SOD活性及肾组织中NO含量 ;减轻肾组织学损伤。但SF对肾组织Ca2 + 作用不明显。结论 :SF可能通过激活和保护内源性氧自由基清除剂SOD活性 ,直接灭活氧自由基 ,增加NO含量 ,抑制WBC粘附 ,抑制Na+ 内流等机理 ,发挥其预防急性I-R肾损伤的作用。AIM: To further investigate preventive effects of Shenfu(SF) injection, a Chinese herb drug, on acute renal ischemic reperfusion injury (IRI). METHODS: After SF or normal saline was administered intravenously one time a day for four days, the renal ichemia-reperfusion(I-R) model was established by occlusion of right renal artery and vein for an hour and reperfusion for three hours after left nephroectomy. The activity of superoxide dismutase (SOD), content of malondialdehyde(MDA) in serum and renal tissue, and content of nitric oxide (NO),concentrations of Na + and Ca 2+ , numbers of WBC adhesion in renal tissue were detected and light and electronic microscopy were used for the detection of the renal histological changes. RESULTS: SF lowered significantly MDA content in either renal tissues or serum , concentration of Na +, the number of WBC adhesion, and scores of tubules in renal tissue after renal I-R, and the SOD activity in renal tissues and serum and NO content in renal tissue were obviously increased by SF.In addition,renal histomorphological damage in either light or electronic microscope were lightened by SF. But Ca 2+ concentration in renal tissue appeared to be only mildly affected. CONCLUSION: The mechanisms that SF protects renal structure and function against acute renal IRI may be involved in increasing SOD activity,scavenging directly oxygen free redicals(OFR),raising NO content,inhibiting WBC adhesion and recruiment,preventing Na + influx to form Na + overload.

关 键 词：参附注射液 家兔 急性肾缺血 再灌注损伤 预防 

分 类 号：R269.2[医药卫生—中西医结合] R285.5[医药卫生—中医外科学]