Volume s1-31, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



A controlled study has been made of the effect of ascorbic acid deficiency in guinea-pigs experimentally infected intracecally with trophozoites. Higher infectivity and mortality rates and a more severe type of disease were encountered in guinea-pigs fed a purified diet deficient in ascorbic acid than in those on the same diet with an adequate supplement of this vitamin. The effect of infection on those fed a mildly scorbutogenic diet of natural food-stuffs was intermediate between the two groups.

The infected guinea-pigs developed a significant splenomegaly with reticulum-cell hyperplasia and with an increased number of neutrophils in the splenic pulp. Hepatomegaly was also present in the animals of this group without noticeable microscopic changes. Chemical determinations of ascorbic acid levels in the plasma, muscle, liver and spleen revealed no significant alterations in the distribution of tissue ascorbic acid in infected guinea-pigs.


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