PMID: 2486742Jan 1, 1989Paper

Hypoalphalipoproteinemia and atherosclerosis. Genetic and biochemical profile of 10 families

Archivos del Instituto de Cardiología de México
M Ahumada AyalaC Posadas Romero

Abstract

The results of lipoprotein studies performed in 67 members of 10 kindreds with familial hypoalphalipoproteinemia are presented. Probands were ten patients referred to the Lipid Clinic of the National Institute of Cardiology for evaluation of their lipid profile, all of whom had history of a definite myocardial infarction occurring before they had reached age 60. Their only plasma lipid abnormality was a reduction of the cholesterol fraction associated with high-density lipoproteins (C-HDL) below the corresponding age-sex specific fifth percentile. We studied 57 other individuals including probands spouses and available first-degree relatives. All participants were clinically examined and their complete coronary risk factor profile was assessed. After a 12 hour fast, plasma samples were obtained for lipid analysis, total cholesterol and trïglycerides were measured by enzymatic methods, C-HDL was determined in the supernatant after plasma precipitation with magnesium chloride: phosphotungstic acid. Low-density lipoprotein cholesterol (C-LDL) was estimated with the formula proposed by DeLong. For every family a pedigree was constructed and statistically analyzed to assess the within-family clustering of low C-HDL levels and the pa...Continue Reading

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