Genetics of cardiovascular disease: Importance of sex and ethnicity

Atherosclerosis. 2015 Jul;241(1):219-28. doi: 10.1016/j.atherosclerosis.2015.03.021. Epub 2015 Mar 16.

Abstract

Sex differences in incidence and prevalence of and morbidity and mortality from cardiovascular disease are well documented. However, many studies examining the genetic basis for cardiovascular disease fail to consider sex as a variable in the study design, in part, because there is an inherent difficulty in studying the contribution of the sex chromosomes in women due to X chromosome inactivation. This paper will provide general background on the X and Y chromosomes (including gene content, the pseudoautosomal regions, and X chromosome inactivation), discuss how sex chromosomes have been ignored in Genome-wide Association Studies (GWAS) of cardiovascular diseases, and discuss genetics influencing development of cardiovascular risk factors and atherosclerosis with particular attention to carotid intima-medial thickness, and coronary arterial calcification based on sex-specific studies. In addition, a brief discussion of how ethnicity and hormonal status act as confounding variables in sex-based analysis will be considered along with methods for statistical analysis to account for sex in cardiovascular disease.

Keywords: Atherosclerosis; Carotid intima-medial thickness; Coronary arterial calcification; Men; Sex chromosomes; Women.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Age Factors
  • Cardiovascular Diseases / diagnosis
  • Cardiovascular Diseases / ethnology*
  • Cardiovascular Diseases / genetics*
  • Cardiovascular Diseases / metabolism
  • Chromosomes, Human, X*
  • Chromosomes, Human, Y*
  • Comorbidity
  • Female
  • Genetic Association Studies
  • Genetic Predisposition to Disease
  • Gonadal Hormones / genetics
  • Gonadal Hormones / metabolism
  • Health Status Disparities*
  • Humans
  • Male
  • Phenotype
  • Prognosis
  • Racial Groups / genetics*
  • Risk Assessment
  • Risk Factors
  • Sex Factors

Substances

  • Gonadal Hormones