Z Kassarjian

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In vitro studies suggest that the effect of fiber in inhibiting calcium absorption is pH dependent. In nine normal, elderly control subjects and eight elderly subjects with achlorhydria, 47Ca was ingested with three test meals: a low-fiber meal (0.5 g dietary fiber), a high-fiber meal (10.5 g), and a high-fiber meal with 120 mL of 0.1 mol HC/L. In control(More)
Studies were done to determine whether vitamin A is reabsorbed in the enterohepatic circulation in forms that can be reutilized by the body for vision and reproduction. Micelles containing [11,12(n)-3H]retinol were administered orally to mesenteric lymph duct-cannulated rats. Lymph containing [3H]retinyl esters and small amounts of [3H]retinol and(More)
We studied intestinal function and hepatic microsomal phase I monooxygenase function in healthy, free-living subjects, aged 19-91 yr. In subjects (n = 114) given a diet including 100 g/day of fat, fecal fat in a 72-h collection did not increase with advancing age. D-Xylose excretion (n = 54) following a 25-g oral load significantly declined with increasing(More)
We have measured the magnitude of the enterohepatic circulation of newly administered [3H]-alpha-tocopherol in rats. One group of animals (day-1 rats) was used to prepare [3H]-alpha-tocopherol-containing lymph. Another set of animals (day-2 rats) was divided into control and vitamin E supplemented (+E) groups, which were used to study the enterohepatic(More)
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