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Acute toxicity of Nerium oleander aqueous leaf extract in rabbits

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Author(s): M. I. Al-Farwachi | M. S. Rhaymah | B. A. Al-Badrani

Journal: Iraqi Journal of Veterinary Sciences
ISSN 1607-3894

Volume: 22;
Issue: 1;
Start page: 1;
Date: 2008;
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Keywords: Nerium oleander | LD50 | Acute toxicity | Rabbits

ABSTRACT
The median lethal dose was evaluated in rabbits subcutaneously injected with Nerium oleander aqueous leaf extract . The clinical signs , postmortem changes , hematological and biochemical changes were recorded. The results revealed that the median lethal dose was 157.37 mg / kg B. wt. The live animals showed nervous signs in the second days after treatment as crying, ataxia , abdominal respiration , inaddition to a significant increase in body temperature and loss in the body weigth then all animals die during 4 -5 day.The postmortem changes included hemorrhages , and congestion in all organs particularly in the subcutaneous tissue. Hematological changes including increase in the packed cell volume and hemoglobin concentration ,and erythrocytic count and leukocytosis with neutrophilia and lymphopenia .Significant increase in the aspartate and alanine aminotraferease activities , serum sodium and potassium ions , and inhibition in blood cholinesterase activity in both erythrocytes and plasma in 2 and 24 houres after injection as compared to the values in animals before injection.

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