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Related Experiment Videos

Benthiocarb toxicity on rat brain AChE.

G R Babu1, G R Reddy, C S Chetty

  • 1Department of Zoology, Sri Venkateswara University, Tirupati, India.

Biochemistry International
|July 1, 1989
PubMed
Summary

Benthiocarb exposure inhibits rat brain acetylcholinesterase (AChE) activity, with inhibition increasing over time due to cumulative effects. This indicates non-competitive enzyme inhibition during benthiocarb intoxication.

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Area of Science:

  • Biochemistry
  • Toxicology
  • Neuroscience

Background:

  • Benthiocarb is an insecticide impacting the nervous system.
  • Acetylcholinesterase (AChE) is a crucial enzyme in the mammalian cholinergic system.
  • Understanding benthiocarb's neurotoxic effects is vital for risk assessment.

Purpose of the Study:

  • To investigate the toxic effects of benthiocarb on rat brain acetylcholinesterase (AChE).
  • To elucidate the mechanism of AChE inhibition by benthiocarb.

Main Methods:

  • Rats were exposed to benthiocarb for varying durations.
  • Brain AChE activity was measured.
  • Enzyme kinetics (Km and Vmax) were analyzed.

Main Results:

  • AChE activity inhibition increased with longer benthiocarb treatment periods.
  • Cumulative exposure to benthiocarb enhances its inhibitory effect on AChE.
  • Kinetic analysis indicated a slight increase in Km and a significant decrease in Vmax.

Conclusions:

  • Benthiocarb causes non-competitive inhibition of rat brain AChE.
  • The findings highlight the cumulative neurotoxic potential of benthiocarb on mammalian cholinergic systems.

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