Serum lipoprotein(a) levels in elderly black and white men in the Charleston Heart Study. 1993

R G Knapp, and P J Schreiner, and S E Sutherland, and J E Keil, and G E Gilbert, and R L Klein, and C Hames, and H A Tyroler
Department of Biostatistics, Epidemiology, and Systems Science, Medical University of South Carolina, Charleston 29425.

Lipoprotein(a) [Lp(a)] is an important genetic trait associated with cardiovascular disease. While Lp(a) levels have been demonstrated to be approximately twice as high in black adults and children compared with whites, this relationship has not been assessed in the elderly. During the 1987 recall of the Charleston Heart Study cohort, plasma Lp(a) [mg/dl] was measured on 113 white men and 83 black men. The average age of those having Lp(a) measurements was 71 years (+/- 6) for white men and 72 years (+/- 9) for black men. The distribution of Lp(a) was skewed in both whites (mean = 14.8, median = 8.2 mg/dl) and blacks (mean = 18.1, median = 12.8 mg/dl). The skewed distribution in elderly black men was in contrast to the bell-shaped distribution commonly reported for younger blacks. The Charleston Heart Study data suggest a shift to lower values among elderly as compared to younger men, with the greatest shift occurring among the black men. For black men who have survived to the 7th, 8th, and 9th decades of life, Lp(a) levels appear to be approaching the lower levels of white men. Despite this shift in distribution among black men, there remained a statistically significant difference in Lp(a) between racial groups.

UI MeSH Term Description Entries
D008074 Lipoproteins Lipid-protein complexes involved in the transportation and metabolism of lipids in the body. They are spherical particles consisting of a hydrophobic core of TRIGLYCERIDES and CHOLESTEROL ESTERS surrounded by a layer of hydrophilic free CHOLESTEROL; PHOSPHOLIPIDS; and APOLIPOPROTEINS. Lipoproteins are classified by their varying buoyant density and sizes. Circulating Lipoproteins,Lipoprotein,Lipoproteins, Circulating
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D002784 Cholesterol The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils. Epicholesterol
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old
D000375 Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. Senescence,Aging, Biological,Biological Aging

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