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Blood and serum thiamin and thiamin phosphate esters concentrations in patients with alcohol dependence syndrome before and after thiamin treatment


Blood and serum thiamin and thiamin phosphate esters concentrations in patients with alcohol dependence syndrome before and after thiamin treatment



Alcoholism Clinical and Experimental Research 16(2): 320-325



ISSN/ISBN: 0145-6008

PMID: 1317136

DOI: 10.1111/j.1530-0277.1992.tb01384.x

The blood and serum concentrations of free thiamin and its three phosphate esters were determined concomitantly by a new high-performance liquid chromatography (HPLC) method in 30 patients with alcohol dependence syndrome on admission to hospital and 24 hr after thiamin injection. We studied 24 men and 6 women; mean age, 50 years (range 21 to 69); mean ethanol consumption during the last 30 days, 164 .+-. 119 g/day. A control group included 40 healthy volunteers (25 men, 15 women), of whom 10 were given the same thiamin injection as were the patients. Thiamin monophosphate was significantly reduced in the patients compared with controls before treatment (mean 2.9 .+-. 2.3 and 5.9 .+-. 3.1 nmol/liter) and after (8.1 .+-. 5.1 and 19.5 .+-. 8.1 nmol/liter). On admission, free thiamin and thiamin diphosphate were similar in controls and in patients in whole blood (B) and serum (S) and increased similarly after treatment (mean B-thiamin diphosphate in male patients: 149 .+-. 64 to 238 .+-. 88 nmol/liter, in controls: 179 .+-. 40 to 289 .+-. 18 nmol/liter). However, seven patients had extremely high free thiamin values. The phosphorylation ratio was lower in patients than in controls (p < 0.05), before and after treatment. Finally, the mean B-diphosphate was lower in patients not taking vitamins (116 .+-. 48 nmol/liter and 173 .+-. 57 nmol/liger) and in patients with polyneuropathy (118 .+-. 54 nmol/liter and 173 .+-. 52 nmol/liter), compared with the other patients. We conclude that the complete blood thiamin status discloses not only deficiency but also impairment of thiamin metabolism in patients with alcohol dependence syndrome, possibly due to altered protein binding, and that thiamin supplementation is effective even in currently abusing patients.

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