This study was planned to investigate the effects of copper (Cu) deficiency on liver and bone metabolism in malnourished children. Serum total calcium (Ca), inorganic phosphorus (P), Ca/P, Cu/Ca, Cu/P ratios and alkaline phosphatase (ALP) activity values were analyzed. Aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma glutamyltransferase (GGT) enzyme activities and the ALT/AST (De Ritis) ratio as well as their correlations with Cu were tested to determine liver function. The results of the study showed that Cu deficiency directly affects the organic matrix formation, and by the suppression of ALP activity, indirectly causes decalcification. In the liver, however, no direct effect of Cu deficiency was seen. Deterioration in liver function and Cu deficiency increased parallel with the severity of malnutrition. Thus we concluded that a correlation exists between Cu and the parameters that indicate liver function.
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