Pairitz G, Davignon J, Mailloux H, Sing C F
Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia.
Am J Hum Genet. 1988 Sep;43(3):311-21.
The quantitative level of apolipoprotein (apo) B associated with low-density lipoprotein (LDL) varies among individuals within the population. This variation in level of the LDL receptor ligand appears to have predictive value, and may have an etiologic role, in coronary artery disease. Complex segregation analysis was used to compare eight different models of transmission. This study confirms the existence of allelic variations at a single genetic locus with large effects on the interindividual variation in the level of the serum apo B associated with LDL. This is the first study to consider the possible effects of inherited polymorphic variation in the apo E molecule when analyzing the components of variation in apo B associated with LDL. Our analyses suggest that the common alleles coding for the apo E polymorphism act independently of the unmeasured single-gene locus characterized by this study.
与低密度脂蛋白(LDL)相关的载脂蛋白(apo)B的定量水平在人群中的个体之间存在差异。这种LDL受体配体水平的差异似乎具有预测价值,并且可能在冠状动脉疾病中具有病因学作用。采用复杂分离分析来比较八种不同的传递模型。本研究证实了在单个基因位点存在等位基因变异,其对与LDL相关的血清apo B水平的个体间变异有很大影响。这是第一项在分析与LDL相关的apo B变异成分时考虑apo E分子遗传多态性变异可能影响的研究。我们的分析表明,编码apo E多态性的常见等位基因独立于本研究中鉴定的未测量单基因位点发挥作用。