Ulcerative dermatitis in rats with over fifteen generations of protein malnutrition

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Abstract
1. Male and female rats with histories of up to twenty generations of protein malnutrition were found to be at a higher risk for the development of ulcerative dermatitis than rats maintained on a low-protein diet for one generation or in controls on an adequate-protein intake.2. In all groups, female rats were more likely to have dermatitis than male rats.3. Bacteriologic examination was performed in the intergenerationally malnourished and control animals; Staphylococcus aureus was isolated from the skins of animals in both groups, whether or not any lesion was present. In these two groups of animals, experimental inoculation with S. aureus produced dermatitis only in the malnourished animals.