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Shakoori AR, Ali SS, Saleem MA: Effects of six months' feeding of cypermethrin on the blood and liver of albino rats. J Biochem Toxicol. 1988 Spring;3:59-71.
A cypermethrin-mixed diet was fed uninterrupted to male albino rats for six months to evaluate toxicity in nontarget organisms. The rats consumed cypermethrin at a dose of 420 mg active ingredient (AI) per kilogram body weight per day. At the end of the stipulated period, the blood and liver were analyzed for insecticidal toxicity. The hemoglobin content and white blood cell (WBC) count remained unaltered, while the red blood cell (RBC) count and packed-cell volume (PCV) decreased significantly. The blood serum lactate dehydrogenase (LDH), isocitrate dehydrogenase (ICDH), and amylase activities were elevated 61%, 30%, and 46%, respectively, after six months of insecticide feeding, suggesting liver and possibly pancreas malfunction. The glutamate oxaloacetate transaminase (GOT) and creatine phosphokinase (CPK) activities, on the other hand, decreased 37% and 40%, respectively. The blood serum protein and free amino acids (FAA) content increased 12% and 31%, respectively, while cholesterol content decreased 49%. Consequent to cypermethrin administration the hepatic GOT, LDH, and ICDH activities increased 250%, 20%, and 30%, respectively. The soluble proteins, FAA, and glucose contents exhibited significant increases of 28%, 61%, and 71%, respectively. Histological changes were marked by hypertrophied hepatic cells and nuclei. |
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