Related Experiment Videos
Vitamin C mediated amelioration of pesticide genotoxicity in murine spermatocytes
Abstract:
The effect of vitamin C on the genotoxicity of three pesticides (Endosulfan, Phosphamidon, Mancozeb) was monitored by screening meiotic (metaphase I) chromosomes in the primary spermatocytes of Swiss albino mice, Mus musculus. A dose-dependent amelioration by vitamin C was observed in the Phosphamidon-treated group where quadruple the therapeutic dose produced maximum amelioration. In Endosulfan- and Mancozeb-treated groups, no further amelioration was achieved beyond the double dose of vitamin C, and the damage frequency did not come down to the control level. The possible mechanism of this effect is discussed.
Insights
Vitamin C ameliorates pesticide genotoxicity in mice, with varying effectiveness. It showed dose-dependent protection against Phosphamidon but limited effects on Endosulfan and Mancozeb genotoxicity.
Area of Science:
- Environmental toxicology
- Genetics and heredity
- Nutritional science
Background:
- Pesticides like Endosulfan, Phosphamidon, and Mancozeb pose risks of genotoxicity.
- Vitamin C (ascorbic acid) is a potent antioxidant with potential protective effects against cellular damage.
Purpose of the Study:
- To investigate the protective role of vitamin C against the genotoxic effects of three specific pesticides.
- To determine the dose-response relationship of vitamin C in mitigating pesticide-induced chromosomal damage.
Main Methods:
- Meiotic chromosome screening in primary spermatocytes of Swiss albino mice (Mus musculus).
- Administration of varying doses of vitamin C to mice exposed to Endosulfan, Phosphamidon, or Mancozeb.
- Analysis of chromosome aberrations to quantify genotoxicity and vitamin C's ameliorative effect.
Main Results:
- Vitamin C demonstrated a dose-dependent amelioration of genotoxicity in the Phosphamidon-treated group, with maximum effect at quadruple the therapeutic dose.
- In Endosulfan and Mancozeb groups, vitamin C's protective effect plateaued at double the therapeutic dose, failing to restore damage frequency to control levels.
- Significant variations in vitamin C's efficacy were observed across the different pesticide treatments.
Conclusions:
- Vitamin C exhibits a protective effect against pesticide-induced genotoxicity, but its efficacy varies depending on the specific pesticide.
- The findings suggest that while vitamin C can mitigate some pesticide-induced DNA damage, it may not fully counteract the effects of all tested pesticides.
- Further research into the mechanisms underlying vitamin C's differential protective effects is warranted.