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. 1979 Oct;38(2):413–420.

Effect of malnutritional rehabilitation on tuberculin reactivity and complement level in rats

Motoko Sakamoto, K Nishioka, K Shimada
PMCID: PMC1457921  PMID: 511222

Abstract

The purpose of this study was to clarify the effect of differing nutritional states on various components of the immune system, especially on the interplay of the complement system and cell-mediated immunity. Malnutrition was induced in Sprague—Dawley rats by feeding them diets containing 5% protein or 0.5% protein as compared with 18% protein in the diet of the controls. Nutritional rehabilitation was achieved in some experimental groups by transferring those fed 0.5% protein diet to the 18% protein diet. Malnutrition was confirmed by weight changes, biochemical findings in the sera, haematological observations and histological observation of the liver, and rehabilitation was confirmed by body weight increase and changes in other measurements. In rats suffering malnutrition, the tuberculin skin reactivity was suppressed. After feeding the 0.5% protein diet for 8 weeks, all the rats showed negative tuberculin skin reactions. In the malnourished rats, including those fed with 0.5% protein, the serum complement level decreased but did not show any significant differences as compared with the well nourished control group. After 1 week of nutritional rehabilitation, the tuberculin reactivity of six out of ten rats remained negative and after 2 weeks, all rats showed positive tuberculin reactions. After 1 week of nutritional rehabilitation, all the rats showed a normal or higher serum complement level. At this stage, two of the tuberculin-negative rats showed significantly higher titre of serum complement than even the controls.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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