Results 251 to 260 of about 98,201 (305)
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Journal of Dental Research, 1986
This study sought to determine whether the lingual ascorbic acid test (LAAT) and measurement of salivary ascorbate refXect plasma and leukocyte ascorbate levels during controlled periods of ascorbic acid depletion and supplementation. Eleven healthy non-smoking men, aged 19-28 years, ate a diet that was repeated every seven days and ...
P J, Leggott +4 more
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This study sought to determine whether the lingual ascorbic acid test (LAAT) and measurement of salivary ascorbate refXect plasma and leukocyte ascorbate levels during controlled periods of ascorbic acid depletion and supplementation. Eleven healthy non-smoking men, aged 19-28 years, ate a diet that was repeated every seven days and ...
P J, Leggott +4 more
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Ascorbic Acid and Hypertriglyceridemia
Annals of Internal Medicine, 1980Excerpt To the editor: Although increased blood lipid levels have been associated with lowered intracellular and extracellular ascorbic acid levels (1, 2), few or no data exist on treatment of hype...
K L, Geoly, L H, Diamond
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Journal of Biomolecular Structure and Dynamics, 1998
Ascorbic acid and divalent iron salts have been widely used to investigate the effects of reactive oxygen species in different biological targets such as nucleic acids, proteins and lipids. This study was designed to examine the interaction of yeast RNA with vitamin C in aqueous solution at physiological pH with drug/RNA(P)(P=phosphate) molar ratios of
M C, Djoman +3 more
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Ascorbic acid and divalent iron salts have been widely used to investigate the effects of reactive oxygen species in different biological targets such as nucleic acids, proteins and lipids. This study was designed to examine the interaction of yeast RNA with vitamin C in aqueous solution at physiological pH with drug/RNA(P)(P=phosphate) molar ratios of
M C, Djoman +3 more
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Ascorbate compartmentalization in the CNS
Neurotoxicity Research, 1999Ascorbic acid, found physiologically as the ascorbate anion, is an abundant water-soluble antioxidant. It is concentrated in the intracellular compartment of all tissues in the body. The CNS has particularly high levels of ascorbate. Recent data from this laboratory indicate that ascorbate is distinctly compartmentalized between neurons and glia, with ...
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Ascorbate status and xerostomia
Medical Hypotheses, 1992Xerostomia, the subjective feeling of dry mouth, affects millions of people particularly the elderly. It is invariably associated with hypofunction of the salivary glands. The amount, rate of secretion, and composition of saliva are regulated by both sympathetic and parasympathetic receptor systems whose stimulation transmits signals through ...
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A unique function for ascorbate
Medical Hypotheses, 1991Vitamin C is a reducing substance, an electron donor. When vitamin C donates its two high-energy electrons to scavenge free radicals, much of the resulting dehydroascorbate is re-reduced to vitamin C and therefore used repeatedly. Conventional wisdom is correct in that only small amounts of vitamin C are necessary for this function because of its ...
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Biochemical and Biophysical Research Communications, 2010
Ascorbic acid (AA) is a common culture medium and dietary supplement. While AA is most commonly known for its antioxidant properties, it is also known to function as a pro-oxidant under select conditions. However, the complexity and often unknown composition of biological culture systems makes prediction of AA behaviour in supplemented cultures ...
Osiecki, Michael +4 more
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Ascorbic acid (AA) is a common culture medium and dietary supplement. While AA is most commonly known for its antioxidant properties, it is also known to function as a pro-oxidant under select conditions. However, the complexity and often unknown composition of biological culture systems makes prediction of AA behaviour in supplemented cultures ...
Osiecki, Michael +4 more
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Journal of Comparative Physiology B, 1990
Ascorbate metabolism was analyzed in fasted common carp and carp offered diets lacking ascorbic acid or supplemented with ascorbic acid (AA) or ascorbic sulfate (AS). Ascorbic acid and ascorbic sulfate were analyzed in the contents collected from various parts of the digestive tract. The major site of the dietary ascorbate absorption was located in the
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Ascorbate metabolism was analyzed in fasted common carp and carp offered diets lacking ascorbic acid or supplemented with ascorbic acid (AA) or ascorbic sulfate (AS). Ascorbic acid and ascorbic sulfate were analyzed in the contents collected from various parts of the digestive tract. The major site of the dietary ascorbate absorption was located in the
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Nature, 1963
ASCORBIC acid is found in all green plants, although its concentration may vary greatly. Probably the largest concentration recorded is in the endocarp of the walnut, Juglans regia, which contains between 2 and 3 per cent of the fresh weight. The smallest concentration recorded is possibly that in the vegetable marrow, Cucurbita ovifera, 0.002 per cent
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ASCORBIC acid is found in all green plants, although its concentration may vary greatly. Probably the largest concentration recorded is in the endocarp of the walnut, Juglans regia, which contains between 2 and 3 per cent of the fresh weight. The smallest concentration recorded is possibly that in the vegetable marrow, Cucurbita ovifera, 0.002 per cent
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2003
In previous work, we found that ascorbic acid (AA) or ascorbate is present in the carotid body of the cat (Pokorski and Gonet, 1997), the animal that, as opposed to man and other primates, is capable of synthesizing ascorbate (Chatterjee, 1973). The content of ascorbate is decreased in the hypoxic carotid body, which implies the compound might be ...
Aneta, Dymecka +4 more
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In previous work, we found that ascorbic acid (AA) or ascorbate is present in the carotid body of the cat (Pokorski and Gonet, 1997), the animal that, as opposed to man and other primates, is capable of synthesizing ascorbate (Chatterjee, 1973). The content of ascorbate is decreased in the hypoxic carotid body, which implies the compound might be ...
Aneta, Dymecka +4 more
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