The concentrations of B6 vitamins, and the activities of pyridoxal kinase, pyridoxamine phosphate oxidase and pyridoxal phosphate phosphatase were measured in tongue. Pyridoxal kinase activity was significantly greater (P less than 0.01) in Down's syndrome subjects compared with controls.
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http://dx.doi.org/10.1111/j.1365-2788.1991.tb00452.x | DOI Listing |
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