Abstract
Alloxan-diabetic mice of Swiss, CBA and DBA/2 strains show a significant depression of contact sensitivity to oxazolone, as compared with normoglycaemic control animals, which is accompanied by the involution of the thymus and spleen. Insulin treatment partially restores the contact sensitivity in diabetic animals and also increases the weight of lymphatic organs. In contrast, the non-specific inflammatory response to oxazolone is not impaired in insulin-deficient mice. Further experiments have shown that neither sensitized lymphocytes of control animals given to diabetic mice, nor sensitized lymphocytes of diabetic mice injected into normoglycaemic recipients, were able to transfer passively any significant contact sensitivity. It is suggested that in alloxan-diabetic mice the function of T lymphocytes is affected.
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