pyridoxal phosphate

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a form of vitamin B6.
pyridoxal phosphate a major coenzyme involved in amino acid metabolism.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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The journal Clinical Nutrition published the finding of an association between higher intake of vitamins B1 and B6, as well as higher plasma levels of pyridoxal-phosphate (an indicator of vitamin B6 status), with a lower risk of dying among older men and women during up to ten years of follow-up.
(47) Studies have also shown that pyridoxal and pyridoxal-phosphate can significantly inhibit the glycosylation of albumin.
Pyridoxal-phosphate is the active form but all the vitamers are readily interconverted in the body.