Effect of methyl parathion on Na(+)-K+ and Mg2+ adenosine triphosphatase activity in developing central nervous system in rats.

Developing rat pups exposed to sublethal doses of methyl parathion exhibit marked alteration in the activities of Na(+)-K+ and Mg2+ ATPases. The results suggest that the first post natal week developing animals are more sensitive to organophosphorous insecticide compared to higher age group animals.