201. CYANOCOBALAMIN ABSORPTION FAILURE IN ALCOHOLIC LIVER DISEASE CAN BE PREVENTED BY A NOVEL FERMENTED PAPAYA PREPARATION.
- Author
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Marotta, F., Tajiri, H., Barreto, R., Safran, P., Bobadilla, J., and Idéo, G.
- Subjects
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VITAMIN B12 , *ABSORPTION , *LIVER diseases , *PAPAYA , *PEOPLE with alcoholism - Abstract
Aim: Chronic alcoholics may have a reduced serum level of cyanocobalamin and there are scanty reports suggesting a role of ethanol-generated fine radicals. Thus, the aim of this study was to test novel fermented papaya antioxidant preparation (FPAP, Osato Res. Institute, Gifu Japan) on cyanocobalamin absorption in alcoholic chronic liver disease (CLD) patients. Methods: 30 patients with alcoholic CLD (>150g ethanol/day for at least 5 years) and 24 teetotallers underwent baseline chemistry and Dual Isotope Schilling test (DIST). During endoscopy, biopsy samples were taken from gastric antrum and body to assay: routine histology, malonyldialdehyde (MDA), vitamin E, GSH concentration and vitamin B12-Intrinsic Factor (IF) binding. Examinations were repeated after one week supplementation with FPAP 9g/day, Results: Plasma MDA level, lipid hydroperoxides, MDA and xanthine oxidase concentration in the gastric mucosa were higher in CLD than in healthy subjects (p<0.01) and significantly decreased after FPAP (p<0.05). Gastric mucosal GSH was depleted in CLD patients and partly recovered with FPAP (9<0.05 vs baseline). Although the CLD patients showed normal IF secretion in the gastric juice, they exhibited an impaired IF-cobalamin binding on the ex vivo study (p<0.001), Moreover, nearly 23% of them had an abnormal DIST. Both these failures reverted to normal after FPAP treatment (p<0.01 vs baseline). Conclusions: It can be postulated that the antioxidative action played by FPAP possibly due to its availability of substrates for GSH synthesis as welt as its effect on local oxidative burst from neutrophils, is able to recover a normal cobalamin absorption. [ABSTRACT FROM AUTHOR]
- Published
- 2002