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The central lacteal of intestinal villi transports chylomicrons, macromolecules, and fluids. The normal structure of lacteals is reviewed here and briefly compared to the structure of intestinal mucosal capillaries. Pinocytotic vesicles of lacteal endothelium have been shown to occupy 15 % of...
Jejunal and ileal biopsies were compared histologically and by dissecting microscopy in 27 patients with tropical sprue. Fifteen of the patients were previously untreated, whereas 12 were treated with either tetracycline or folic acid or vitamin B 12 , or both. By dissecting microscopy the...
Serum vitamin B 12 and folic acid status have been examined in patients with hookworm infestation by morphologic study and estimation of serum levels. The parasitic factor etiologically was not related to their deficiencies. Vitamin B 12 deficiency was mainly nutritional in origin; its...
Human gastric mucosa contains at least seven types of epithelial cells: 1 ) pyloric gland, 2 ) surface mucous, 3 ) mucous gland, 4 ) undifferentiated neck, 5 ) "enterochromaffin-like", 6 ) parietal, and 7 ) chief cells. The first three of the above primarily secrete mucus and the pyloric gland...
Abnormalities of jejunal histology were compared with clinical and laboratory tests of small bowel absorptive function in 110 symptomatic untreated patients in Puerto Rico, who were referred for evaluation of diarrhea or weight loss and possible intestinal malabsorption (tropical sprue). A...
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