Absorption of vitamin C from the human buccal cavity
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1. Ascorbic acid was absorbed across the mucosa of the human mounth.2. Omission of sodium ions from the medium decreased the absorption of ascorbic acid.3. The presence of D-glucose, or 3-O-methyl-D-glucose, incrased the absorption of ascorbic acid but D-fructose had little effect and D-mannitol had no effect.4. Calcium ions also increased ascorbic acid absorption probably by a secondary effect on Na+ fluxes.5. Buccal mucosa was also premeable to dehydroascorbic acid and D-isoascorbic. acid
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2009 ◽
Vol 393
(6-7)
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pp. 1669-1675
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1990 ◽
Vol 47
(8)
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pp. 1518-1525
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2009 ◽
Vol 4
(5)
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pp. 1934578X0900400
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1995 ◽
Vol 268
(6)
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pp. C1430-C1439
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1976 ◽
Vol 59
(6)
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pp. 1244-1250
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1986 ◽
Vol 325
(5)
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pp. 473-475
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