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Link to original content: https://pubmed.ncbi.nlm.nih.gov/1539747/
Influence of intestinal parasitism on lactose absorption in well-nourished African children - PubMed Skip to main page content
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. 1992 Feb;46(2):137-40.
doi: 10.4269/ajtmh.1992.46.137.

Influence of intestinal parasitism on lactose absorption in well-nourished African children

D Gendrel  1 , D Richard-Lenoble, M Kombila, C Dupont, J L Moreno, C Gendrel, M Nardou, M Chaussain
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Influence of intestinal parasitism on lactose absorption in well-nourished African children

D Gendrel et al. Am J Trop Med Hyg. 1992 Feb.

Abstract

Hydrogen breath tests were performed in Gabon (Central Africa) after a loading dose of lactose in 67 well-nourished African children (50 with intestinal parasites and 17 unparasitized) and in 18 unparasitized young adults. All had normal nutritional status, and none had diarrhea or digestive symptoms. Parasites that were found included Ascaris lumbricoides in 76% of the parasitized children, Trichuris trichiura in 58%, Giardia in 24%, Entamoeba histolytica in 20%, Schistosoma intercalatum in 16%, and Necator Americanus in 14%. A similar proportion of parasitized (64%) or unparasitized (62.8%) subjects were lactose malabsorbers. Giardia infection was associated with a higher, but not significantly different, proportion of lactose intolerance (10 of 12, 83.3%). The presence of infection with A. lumbricoides or T. trichiura did not increase the percentage of lactose malabsorption. These data indicate that a decrease of lactase activity in well-nourished African children is not related to the presence or the importance of Ascaris or other intestinal parasites if the nutritional status is normal.

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