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Atherogenic lipoprotein profile in families with and without history of early myocardial infarction.

Abstract：

:In this study we compared several parameters characterizing differences in the lipoprotein profile between members of families with a positive or negative family history of coronary artery disease (CAD). In addition to regular parameters such as the body mass index (BMI), total plasma cholesterol (TC), low density (LDL-C) and high density (HDL-C) cholesterol and triglycerides (TG) we estimated the fractional esterification rate of cholesterol in apoB lipoprotein-depleted plasma (FER(HDL)) which reflects HDL and LDL particle size distribution. A prevalence of smaller particles for the atherogenic profile of plasma lipoproteins is typical. Log (TG/HDL-C) as a newly established atherogenic index of plasma (AIP) was calculated and correlated with other parameters. The cohort in the study consisted of 29 young (< 54 years old) male survivors of myocardial infarction (MI), their spouses and at least one offspring (MI group; n=116). The control group consisted of 29 apparently healthy men with no family history of premature CAD in three generations, their spouses and at least one offspring (control group; n=124). MI families had significantly higher BMI than the controls, with the exception of spouses. Plasma TC did not significantly differ between MI and the controls. MI spouses had significantly higher TG. Higher LDL-C had MI survivors only, while lower HDL-C had both MI survivors and their spouses compared to the controls. FER(HDL) was significantly higher in all the MI subgroups (probands 25.85+/-1.22, spouses 21.55+/-2.05, their daughters 16.93+/-1.18 and sons 19.05+/-1.33 %/h) compared to their respective controls (men 20.80+/-1.52, spouses 14.70+/-0.98, daughters 13.23+/-0.74, sons 15.7+/-0.76 %/h, p<0.01 to p<0.05). Log(TG/HDL-C) ranged from negative values in control subjects to positive values in MI probands. High correlation between FER(HDL) and Log (TG/HDL-C) (r=0.80, p<0.0001) confirmed close interactions among TG, HDL-C and cholesterol esterification rate. The finding of significantly higher values of FER(HDL) and Log (TG/HDL-C) indicate higher incidence of atherogenic lipoprotein phenotype in members of MI families. The possibility that, in addition to genetic factors, a shared environment likely contributes to the familial aggregation of CAD risk factors is supported by a significant correlation of the FER(HDL) values within spousal pairs (control pairs: r=0.51 p<0.01, MI pairs: r=0.41 p<0.05).

journal_name

Physiol Res

journal_title

Physiological research

authors

Dobiásová M,Raslová K,Rauchová H,Vohnout B,Ptácková K,Frohlich J

subject

Has Abstract

pub_date

2001-01-01 00:00:00

pages

1-8

issue

eissn

0862-8408

issn

1802-9973

journal_volume

pub_type

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Atherogenic lipoprotein profile in families with and without history of early myocardial infarction.