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High density lipoprotein subfractions, apolipoprotein A‐I containing lipoproteins, lipoprotein (a), and cholesteryl ester transfer protein activity in alcoholic women before and after ethanol withdrawal
Author(s) -
VÄLIMÄKI M.,
KAHRI J.,
LAITINEN K.,
LAHDENPERÄ S.,
KUUSI T.,
EHNHOLM C.,
JAUHIAINEN M.,
BARD J. M.,
FRUCHART J. C.,
TASKINEN M.R.
Publication year - 1993
Publication title -
european journal of clinical investigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 107
eISSN - 1365-2362
pISSN - 0014-2972
DOI - 10.1111/j.1365-2362.1993.tb00783.x
Subject(s) - cholesterylester transfer protein , lipoprotein , chemistry , apolipoprotein b , ethanol , low density lipoprotein receptor related protein 8 , high density lipoprotein , cholesteryl ester , endocrinology , medicine , very low density lipoprotein , cholesterol , biochemistry
. We studied 11 female alcoholics before and after ethanol withdrawal of 2 weeks and 10 healthy normolipidaemic, nonalcoholic women of similar age. In alcoholic women the HDL 2 mass was increased by 63% ( P<0.01 ) on admission and normalized ( P <0.01) during abstention. The concentrations of HDL 3 cholesterol and its mass remained unchanged throughout the study. Consistently with the fall of HDL 2 gradient gel electrophoresis analyses also demonstrated decrease of the cholesterol concentration of HDL 2b and HDL 2a (P<0.05) during alcohol withdrawal. On admission the apo A‐II concentration was increased by 48% ( P < 0.01) and it was normalized (P< 0.001) during abstention. Among apo A‐I containing lipoproteins the most prominent change occurred in Lp A‐1: A‐11, which fell by 32% ( P<0.01 ) during 1 week's alcohol withdrawal. During abstention the lipoprotein (a) concentration increased in 10 out of 11 women. In patients cholesteryl ester transfer (CETP) activity increased by 35% (P<0.01) during 1 week of ethanol withdrawal. On admission post‐heparin plasma lipoprotein (LPL) and hepatic lipase activities were increased by 25% (P = NS); during 1 week's abstention they both returned to the control level ( P < 0.05–< 0.01). In conclusion, chronic alcoholic women display multiple changes of lipoprotein metabolism which are rapidly reversed during abstinence. In contrast to alcoholic men, studied previously by us using the same study design and methods, there was no significant elevation of HDL 3 cholesterol and apo A‐I. The data suggest that alcohol interferes with several regulatory steps of HDL metabolism which are partly gender dependent.