Cobalamin pseudodeficiency due to a transcobalamin I deficiency.

Abstract:

:Cobalamin (vitamin B12) deficiency warrants appropriate evaluation because cobalamin is necessary in certain biochemical functions. R-binder deficiency, which causes low cobalamin levels, is a rare and benign pseudodeficiency. If not further evaluated by determining levels of methylmalonic acid and homocysteine, however, such a patient would be given unneeded treatment. We report a case in which a patient has an R-binder deficiency, specifically transcobalamin I deficiency, with a low vitamin B12 level but no true vitamin B12 deficiency.

journal_name

South Med J

journal_title

Southern medical journal

authors

Adcock BB,McKnight JT

subject

Has Abstract

pub_date

2002-09-01 00:00:00

pages

1060-2

issue

9

eissn

0038-4348

issn

1541-8243

journal_volume

95

pub_type

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