PMID: 6979920Jul 1, 1982Paper

Human T-cell function in experimental ascorbic acid deficiency and spontaneous scurvy

The American Journal of Clinical Nutrition
N E KayW C Duane

Abstract

Studies in animal models suggest that ascorbic deficiency impairs T-cell-mediated immunity. We studied five normal volunteers hospitalized on a metabolic unit and consuming a strictly controlled diet deficient in ascorbic acid I) after a 5-wk control period of ascorbic acid supplementation (75 mg/day) and 2) after a 9-wk period of no supplementation. Three of the subjects were restudied after a 5-wk period of ascorbic acid supplementation after the deficient period. At the end of both control periods ascorbic acid levels in plasma ranged from 0.9 to 1.3 mg/dl and in leukocytes from 19 to 30 microgram/10(8) cells. At the end of the deficient period levels of ascorbic acid in plasma ranged from 0.09 to 0.15 mg/dl and in leukocytes from 6.2 to 10 microgram/10(8) cells, levels at or below those frequently found in frank scurvy. None of the T-cell parameters tested including mitogen responsiveness to phytohemagglutinin and percentage of T-cells bearing receptors for IgM (helper cells) and IgG (suppressor cells) was different in the deficient period compared to the control periods. One patient with spontaneous scurvy (plasma ascorbic acid 0.07 mg/dl, leukocytic ascorbic acid 4.9 microgram/10(8) cells) was studied at the time of admis...Continue Reading

Citations

Feb 9, 2020·Journal of Leukocyte Biology·Christian PetersDieter Kabelitz
May 1, 1986·The British Journal of Nutrition·P S DowdP J Guillou
Dec 24, 2005·Annals of Nutrition & Metabolism·Eva S WintergerstDietrich H Hornig
Mar 15, 2018·Antioxidants·Gwendolyn N Y van GorkomGerard M J Bos
Sep 2, 1992·Journal of Wound Care·S M G McLaren

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