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  • Title: Enteropathy in adult protein malnutrition: ultrastructural findings.
    Author: Duque E, Lotero H, Bolaños O, Mayoral LG.
    Journal: Am J Clin Nutr; 1975 Aug; 28(8):914-24. PubMed ID: 1146753.
    Abstract:
    As part of a comprehensive study in adult patients with severe primary protein malnutrition, jejunal ultrastructural studies have been performed in nine adults in the malnourished state. Malnutrition was severe in all. D-Xylose malabsorption and abnormal fecal fat excretion were present in most. The main ultrastructural abnormalities encountered were: microvillar abnormalities such as shortening, diminished numbers, abnormal positioning, branching, and mesalike fusion of the microvilli; and abnormalities in the lamina propria characterized by deposits of osmiodense material and collagen fibers below the basement membrane of the epithelial cells and of the capillaries. None of the aforementioned findings were noted in our control cases. These ultrastructural alterations of severely malnourished adults are nonspecific, since they have already been described in other enteropathies frequently encountered in the tropics.
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