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Related Experiment Videos

Haematological changes induced by dimethoate in rat.

K Reena, K Ajay, C B Sharma

    Arhiv Za Higijenu Rada I Toksikologiju
    |March 1, 1989
    PubMed
    Summary

    Chronic exposure to dimethoate, an organophosphorus insecticide, significantly alters key blood constituents in rats. Longer exposure (30 days) resulted in more pronounced negative health effects compared to shorter exposure (15 days).

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    Area of Science:

    • Toxicology
    • Hematology
    • Environmental Health

    Background:

    • Organophosphorus insecticides like dimethoate are widely used in agriculture.
    • Sublethal exposure can lead to chronic health issues.
    • Understanding the hematological impact of insecticides is crucial for risk assessment.

    Purpose of the Study:

    • To investigate the chronic effects of a sublethal dose of dimethoate on rat blood parameters.
    • To compare the effects of 15-day versus 30-day exposure periods.

    Main Methods:

    • Rats were administered a sublethal dose of dimethoate (150 mg/kg body weight).
    • Blood samples were analyzed after 15 and 30 days of exposure.
    • Key blood constituents including hemoglobin, cell counts, glucose, cholesterol, and enzyme activities were measured.

    Main Results:

    • A significant decrease in hemoglobin, RBC, WBC counts, and hematocrit was observed.
    • After 30 days, increases in blood glucose, cholesterol, urea, total bilirubin, and liver enzymes (AST, ALT) were noted.
    • Significant decreases in acid phosphatase and cholinesterase activities were recorded, with more pronounced changes after 30 days.

    Conclusions:

    • Sublethal dimethoate exposure induces significant hematological alterations in rats.
    • The severity of these effects is dose- and duration-dependent, with 30-day exposure causing more substantial changes.
    • Dimethoate exposure impacts various metabolic and enzymatic pathways, highlighting potential systemic toxicity.

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