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PALP concentration in blood, liver and brain was not affected. Deficient animals had higher levels of pyridoxine in liver.<\/jats:p><jats:p>3. Human subjects with lesions of the mouth responded to treatment with either riboflavin or pyridoxine.<\/jats:p><jats:p>4. PALP concentration of human blood was not affected by administration of riboflavin but was markedly increased by pyridoxine.<\/jats:p><jats:p>5. Erythrocyte glutathione reductase activity (<jats:italic>EC<\/jats:italic>1.6.4.2) in humans was increased and<jats:italic>in vitro<\/jats:italic>stimulation of the enzyme with FAD was decreased by treatment with riboflavin, but not by treatment with pyridoxine.<\/jats:p>","DOI":"10.1079\/bjn19740078","type":"journal-article","created":{"date-parts":[[2005,5,26]],"date-time":"2005-05-26T23:03:29Z","timestamp":1117148609000},"page":"249-255","source":"Crossref","is-referenced-by-count":25,"title":["Tissue pyridoxal phosphate concentration and pyridoxaminephosphate oxidase activity in riboflavin deficiency in rats and man"],"prefix":"10.1017","volume":"32","author":[{"given":"Ambale V.","family":"Lakshmi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. 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