Impact of apolipoprotein E genotype variation on means, variances, and correlations of plasma lipid, lipoprotein, and apolipoprotein traits in octogenarians
- 25 September 1995
- journal article
- review article
- Published by Wiley in American Journal of Medical Genetics
- Vol. 58 (4) , 315-331
- https://doi.org/10.1002/ajmg.1320580405
Abstract
The impact of apoliporotein (apo) E genotype variation on means, variances and correlations between plasma lipid traits was studied in male and female octogenarians. Females had significantly higher mean levels of all 10 of the measured plasma lipid traits than males. The subset of concomitants (i.e., age, height, weight, body mass index, glucose and uric acid) that made a statistically significant contribution to interindividual variability was different in males and females for every trait considered. Gender‐specific associations between variation in apo E genotype and variation in pariticular measures of lipid metabolism, adjusted for concomitant variation, were observed: in females there were no statistically significant associations while in males the means of the three common apo E genotypes were significantly different for adjusted measures of total cholesterol, low density lipoprotein cholesterol and low density lipoprotin‐apo B. The common apo E genotypes were heterogeneous with respect to intragenotypic variance for adjusted logtransformed triglyceride levels in females only. Finally, the three common apo E genotypes were heterogeneous with respect to the correlation between traits, adjusted for concomitant variation, and gender influenced the manner in which the genotypes differed for specific correlations. This study documents that variation in the apo E gene has a significant impact on means, variances and correlations of plasma lipid traits in octogenarians, but the effects are context‐, that is, gender‐ and age‐, dependent.Keywords
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