ABSTRACT
Objective To investigate the renal protective effect of antivenom therapy assisted with hyperbaric oxygen(HBO) in agkistrodon acutus poisoning rat.Methods Ninety-six healthy adult male SpragueDawley rats were randomized into the control group(group A),snake venom poisoning group(group B),antivenom treatment group(group C) and antivenom+ HBO treatment group(group D),24 cases in each group.The group B,C and D were injected with agkistrodon acutus toxin 0.8 × LD50 (LD50 =1.594 mg/kg) by tail vein for establishing the poisoning model.The renal tissue pathological changes after agkistrodon acutus poisoning were observed.In the antivenom treatment group,antivenom(0.8 ×＜ 78 U/kg) was injected by tail vein after successfully constructing model,the group D was given once HBO treatment at 0,4,11 23 h after antivenom injection,while the group A was not given any treatment.Results The rats appeared obvious poisoning symptoms after snake venom intravenous injection.Compared with the group B,therat renal function and coagulation functions in the group C and D were significant improved,more over the group D was better than the group C(P＜0.05).The rats of the group B appeared glomerular hemorrhage,renal capsule expansion,different degrees of congestion in peripheral blood capillaries,renal tubular cavity dilation,cellular fatness,falling of brush border,vacuolation of renal tubular epithelial cells and inflammary cells infiltration in renal interstitial tissue.Along with time lapse,the renal hemorrhage was decreased and inflammatory cells infiltration was increased.The abovelesions in the group C and D were significantly improved.Conclusion The Agkistrodon acutus poisoning can lead to renal damage in rats;the antivenom treatment assisted with HBO has the protective effect on renal injury in agkistrodon acutus poisoning rat,moreover early adopting has better protective effect.