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2011
Epidemiologic and laboratory animal studies have suggested that the availability of vitamin B6 modulates cancer risk. The means by which B6 mediates this effect is not known with any surety but it has been reported that high dietary vitamin B6 attenuates and low dietary vitamin B6 increases the risk of cancer.
Choi S. W, FRISO, Simonetta
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Epidemiologic and laboratory animal studies have suggested that the availability of vitamin B6 modulates cancer risk. The means by which B6 mediates this effect is not known with any surety but it has been reported that high dietary vitamin B6 attenuates and low dietary vitamin B6 increases the risk of cancer.
Choi S. W, FRISO, Simonetta
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2011
Vitamin B6 represents a group of substances with vitamin B activity and these substances are derivatives of 3-hydroxy-2-methylpyridine: pyridoxine (alcohol), pyridoxal (aldehyde), and pyridoxamine (amine), and their 5′-phosphorylated forms. Pyridoxal-5′-phosphate serves mainly as a coenzyme for about 100 enzymes in amino acid metabolism including ...
D. Nohr, H.K. Biesalski, E.I. Back
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Vitamin B6 represents a group of substances with vitamin B activity and these substances are derivatives of 3-hydroxy-2-methylpyridine: pyridoxine (alcohol), pyridoxal (aldehyde), and pyridoxamine (amine), and their 5′-phosphorylated forms. Pyridoxal-5′-phosphate serves mainly as a coenzyme for about 100 enzymes in amino acid metabolism including ...
D. Nohr, H.K. Biesalski, E.I. Back
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International Journal of Sport Nutrition, 1994
This paper presents an overview of vitamin and exercise, including the role that vitamin plays in gluconeogenesis and glycogenolysis and changes in vitamin metabolism during exercise. The dietary vitamin intakes of athletes are also reviewed. Most studies report that male athletes have adequate dietary intakes of vitamin , whereas some females ...
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This paper presents an overview of vitamin and exercise, including the role that vitamin plays in gluconeogenesis and glycogenolysis and changes in vitamin metabolism during exercise. The dietary vitamin intakes of athletes are also reviewed. Most studies report that male athletes have adequate dietary intakes of vitamin , whereas some females ...
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1996
Abstract Vitamin B6 has a central role in the metabolism of amino acids: in transaminase reactions (and hence the interconversion and catabolism of amino acids and the synthesis of non-essential amino acids); in decarboxylation to yield biologically active amines; and in a variety of elimination and replacement reactions.
David A Bender, Arnold E Bender
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Abstract Vitamin B6 has a central role in the metabolism of amino acids: in transaminase reactions (and hence the interconversion and catabolism of amino acids and the synthesis of non-essential amino acids); in decarboxylation to yield biologically active amines; and in a variety of elimination and replacement reactions.
David A Bender, Arnold E Bender
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1991
By 1930, there remained no doubt that “water soluble B” was a complex mixture of several essential nutrients. Thiamine, the anti-beriberi vitamin, was easily distinguished from the rest of the B-complex by its rapid inactivation by heat. Teasing out the rest of the B vitamins would prove much more difficult.
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By 1930, there remained no doubt that “water soluble B” was a complex mixture of several essential nutrients. Thiamine, the anti-beriberi vitamin, was easily distinguished from the rest of the B-complex by its rapid inactivation by heat. Teasing out the rest of the B vitamins would prove much more difficult.
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1985
The term vitamin B6 is used to cover a group of compounds that are metabolically interchangeable, pyridoxol (the alcohol), its aldehyde (pyridoxal) and its amine (pyridoxamine) (Figure 30). They are all colourless crystals soluble in water and alcohol, resistant to normal heat but decomposed by alkalis and ultraviolet light.
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The term vitamin B6 is used to cover a group of compounds that are metabolically interchangeable, pyridoxol (the alcohol), its aldehyde (pyridoxal) and its amine (pyridoxamine) (Figure 30). They are all colourless crystals soluble in water and alcohol, resistant to normal heat but decomposed by alkalis and ultraviolet light.
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