Abstract
The mesenteron and alimentary canal of the female adult American cockroach are respectively 160% and 100% heavier and contain 140% and 56% more GSH (reduced glutathione) than the corresponding organs of the male. In addition, the rate of absorption of arsenic from the male digestive tract is considerably greater than in the female. Efforts to protect against the toxic effects of an ingested dose of arsenic by GSH injections were unsuccessful. The greater tolerance of the female to arsenic is discussed in the light of these findings.
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