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Ecotoxicol Environ Saf
June 1989
Centre of Advanced Study in Zoology, Banaras Hindu University, Varanasi, India.
The chronic effects of continuous exposure for 6 months, from January to June, to safe (2.0 ppm) and sublethal (4.0 ppm) concentrations of a commonly used organophosphorus pesticide, cythion, on the histophysiology of the thyroid and thyrotrophs in Channa punctatus are described in this investigation.
View Article and Find Full Text PDFEcotoxicol Environ Saf
October 1988
Centre of Advanced Study in Zoology, Banaras Hindu University, Varanasi, India.
The long-term toxic effects of continuous exposure for 6 months, from January to June, to a safe dose (4.5 ppm) of a commercial carbamate pesticide, carbofuran, on the histophysiology of thyroid in adult and young (yearling) Channa punctatus, are described in this investigation. In both the experimental groups, thyroid histology exhibited various abnormalities, including hypertrophy, hyperplasia and degeneration of follicular epithelial cells, and reduction in colloid content.
View Article and Find Full Text PDFArkh Anat Gistol Embriol
March 1979
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