The trends in development of aortic and coronary atherosclerosis in healthy male population were studied by WHO methods in three trials: in 1963-1965, 1985-1987, 2001-2003. It was found that atherosclerosis and coronary arteries stenosis were less frequent in the native population of Yakutia than in migrants.
Apolipoprotein E (apoE) polymorphism is one of the genetic determinants of serum cholesterol values. The apoE epsilon4 allele has been associated with advanced coronary heart disease (CHD) diagnosed by angiography, but the role of the apoE genotype in atherosclerosis has not been confirmed at vessel-wall level, nor is any age-dependent effect of the apoE genotype on the development of CHD known.
The right and left anterior descending coronary arteries (RCA and LAD) and the aorta from 700 male autopsy cases (Helsinki Sudden Death Study) in 1981-1982 and 1991-1992 (average age 53 years, range 33 to 70 years) were stained for fat, and all areas covered with fatty streaks, fibrotic plaques, and complicated lesions were measured. In the RCA and LAD, the apoE genotype was significantly associated with the area of total atherosclerotic lesions in men
BACKGROUND: Alimentary lipemia has been associated with coronary heart disease and common carotid artery intima-media thickness (IMT). This study was designed to investigate the relations of subclasses of postprandial triglyceride-rich lipoproteins (TRLs) with IMT. METHODS AND RESULTS: Ninety-six healthy 50-year-old men with an apolipoprotein (apo) E3/E3 genotype underwent an oral fat tolerance test and B-mode carotid ultrasound examination. The apo B-48 and apo B-100 contents of each fraction of TRLs were determined as a measure of chylomicron remnant and VLDL particle concentrations. In the fasting state, LDL cholesterol (P
Apolipoprotein E (apoE) phenotype is a genetic determinant of plasma total cholesterol and low density lipoprotein (LDL) cholesterol concentrations, that are classical coronary heart disease risk factors. ApoE appears in three major isoforms E2, E3, and E4, coded by corresponding alleles epsilon 2, epsilon 3, and epsilon 4. These give rise to six different phenotypes.
To study the associations of apoE phenotype with cord serum lipids (during minimal enteral nutrition), and with serum lipids of 3-year-old children.
We determined serum lipid levels and apoE phenotypes in 206 newborns and 259 3-year-old children in connection with a larger follow-up study of atherosclerosis precursors in children and young adults. ApoE phenotyping was done directly from plasma by isoelectric focusing followed by immunoblotting.
The effect of apoE phenotype on serum total and LDL cholesterol was significantly different in newborns and 3-year-old children (two-way ANOVA, interaction between apoE phenotype and age group: P .05) either in males or in females. The mean serum levels of triglycerides and high density lipoprotein cholesterol did not differ between apoE phenotypes either in 3-year-old children or newborns.
The results show that the differences in serum total and LDL cholesterol levels between apoE phenotypes are formed after birth by the influence of environmental factors and suggest that both genetic and external factors influence the levels of serum cholesterol concentrations during the first years of life.
Arterial compliance influences the measurement of flow-mediated vasodilation, but not acetylcholine-mediated forearm blood flow. The Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) study.
OBJECTIVES: Flow-mediated vasodilation (FMD) is low even in healthy elderly and therefore relations between FMD and cardiovascular risk factors might be hard to evaluate in the elderly. Using data from the Prospective Study of the Vasculature in Uppsala Seniors (PIVUS) study, we investigated if a reduced arterial distensibility could influence FMD measurements. METHODS: In the population-based PIVUS study (1016 subjects aged 70), assessments of arterial distensibility by ultrasound in the carotid artery (CCA) and FMD were performed. Endothelium-dependent vasodilation was also evaluated with the invasive forearm technique with acetylcholine (EDV) and by pulse wave analysis following terbutaline injection. A poor CCA distensibility was defined as
X-ray examination of the lumbar spine of 268 Greenlanders and a corresponding number of Danes were reviewed in order to diagnose arteriosclerotic lesions of the abdominal aorta. In 10.4% of the Greenlanders and 11.6% of the Danes major calcifications were found. The two groups did not differ in distribution of age and sex of patients with arteriosclerotic lesions. It is known that arteriosclerotic complications occur less frequently in Greenlanders than in Danes. The study seems to indicate that this cannot be explained by a rarer occurrence of generalized arteriosclerosis.