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American Journal of Clinical Nutrition, Vol 29, 1089-1092, Copyright © 1976 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Complement activity in children with protein-calorie malnutrition

R Suskind, R Edelman, P Kulapongs, A Pariyanonda and S Sirisinha

Using the hemolytic complement (CH50) assay, we evaluated the complement system of 28 children with severe protein calorie malnutrition (PCM) during their hospital admission and recovery. The mean CH50 activity in children with kwashiorkor was significantly less on hospital days 1 and 4 than in 17 healthy control subjects. On day 8 it rose to normal, and by day 50 it was significantly higher than the controls. The mean CH50 titer of 16 well-nourished febrile children was, in contrast to that of untreated PCM, significantly greater than the healthy controls. Of the children with PCM, 11 (40%) evidenced anticomplementary (AC) activity in their serum on either day or 1 or 4, but only two (7%) had detectable serum AC activity during later convalescence. Significantly, the CH50 titer in a PCM serum correlated inversely to the amount of AC activity in that serum (P less than 0.01). These results indicate that, in children with PCM, the complement system is compromised functionally, and that its repair coincides with intake of adequate diet. The presence of AC activity provides a possible mechanism for depressed complement activity in some untreated PCM children.




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Copyright © 1976 by The American Society for Nutrition