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American Journal of Clinical Nutrition, Vol 40, 146-152, Copyright © 1984 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Liver levels of retinol in unselected necropsy specimens: a prevalence survey of vitamin A deficiency in Recife, Brazil

H Flores and CR de Araujo

Total retinol was analyzed in 517 necropsy specimens from children 0 to 14 yr of age, deceased of various causes in Recife, Brazil, and from eight persons, 10 to 59 yr of age, who died violently. Age and nutritional status, in that order, were found to be the major determinants of the prevalence of low reserves, children less than 1 yr of age showing the highest prevalence of deficient values. These data were extrapolated to the live population less than 5 yr of age, categorized by age and nutritional status. By using the criteria that liver reserves of vitamin A less than 5 and 20 micrograms/g denote states of high risk and inadequacy, respectively, approximately 3 and 17% of children 0 to 4 yr of age in the live population of Recife were estimated to fall in the high risk and inadequate status group, respectively. None of the persons who died violently was at high risk and only one had inadequate reserves. These estimates agree with previous prevalence figures from clinical and biochemical surveys. Thus, the direct assessment of concentrations of vitamin A in the liver at necropsy is a simple, inexpensive, and noninvasive procedure for estimating the vitamin A status of children.


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J. D Ribaya-Mercado, N. W Solomons, Y. Medrano, J. Bulux, G. G Dolnikowski, R. M Russell, and C. B Wallace
Use of the deuterated-retinol-dilution technique to monitor the vitamin A status of Nicaraguan schoolchildren 1 y after initiation of the Nicaraguan national program of sugar fortification with vitamin A
Am. J. Clinical Nutrition, November 1, 2004; 80(5): 1291 - 1298.
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Copyright © 1984 by The American Society for Nutrition