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Delayed neurotoxic effect of sarin in mice after repeated inhalation exposure

✍ Scribed by K. Husain; R. Vijayaraghavan; S. C. Pant; S. K. Raza; K. S. Pandey


Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
540 KB
Volume
13
Category
Article
ISSN
0260-437X

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✦ Synopsis


Delayed neurotoxicity of sarin in mice after repeated inhalation exposure has been studied. Female mice exposed to atmospheric sarin (5 mg for 20 min) daily for 10 days developed muscular weakness of the limbs and slight ataxia on the 14th day after the start of the exposure. These changes were accompanied by significant inhibition of neurotoxic esterase (NTE) activity in the brain, spinal cord and platelets. Histopathology of the spinal cord of exposed animals showed focal axonal degeneration. These changes were comparatively less than in animals treated with the neurotoxic organophosphate, mipafox. Results from this study indicate that sarin may induce delayed neurotoxic effects in mice following repeated inhalation exposure.


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