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Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases

[Effect of fluoroacetamide on cardiomyocytes of rat and the antidotal effect of acetamide].


PMID 14694659

Abstract

To observe the effect of fluoroacetamide on cardiomyocytes of rat and the antidotal effect of acetamide. 4 groups of SD rats were treated with various dosages of fluoroacetamid(p.o.) and 2 groups of them were treated with acetamide(i.p.). The changes of cardiomyocytes and serum AST, LDH, CK, CK-MB and HBDH were measured at different intervals after poisoning. In the group treated with fluoroacetamid 8 mg/kg. bw, serum AST[(589.58 +/- 821.72) U/L], CK[(916.78 +/- 343.55) U/L], HBDH[(504.47 +/- 148.88) U/L] raised obviously compared with control[(187.70 +/- 46.87), (755.65 +/- 498.90), (347.25 +/- 228.40) U/L respectively] (P < 0.01), and the pathological findings such as degeneration, liquefactive necrosis and filtration of inflammatory cells in cardiac muscles were observed 24 hours later, while all the male dead within 3 days. In the group treated with fluoroacetamid 4 mg/kg. bw, serum LDH and HBDH rose significantly compared with control(P < 0.01) 5 day later. On the day of 10, myocardial enzymes restored in all experiment groups with some interstitial fibroblastic proliferation. The pathological changes were reduced in the group treated with acetamide synchronously (100 mg/kg. bw). Acute intoxication of fluoroacetamide could damage cardiomyocytes while acetamide could reduce the injury of them, but the injury was reversible. The levels of serum myocardial enzymes could be a usable index for early diagnosis.

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128341
Fluoroacetamide
C2H4FNO