What we know and do not know about sex and cardiac disease

John P Konhilas1

  • 1Department of Physiology, Molecular Cardiovascular Research Program, Sarver Heart Center, University of Arizona, 1656 E Mabel, Medical Research Building, Room 320, Tucson, AZ 85724, USA. konhilas@arizona.edu

Insights

Sex differences in congestive heart failure (CHF) are significant. Understanding these disparities in cardiovascular disease (CVD) requires examining sex-specific cellular mechanisms for better outcomes.

Area of Science:

  • Cardiology
  • Sex Differences in Medicine
  • Molecular Biology

Background:

  • Cardiovascular disease (CVD) is the leading cause of death globally.
  • Congestive heart failure (CHF) is a common outcome for CVD patients.
  • Sex differences in CHF etiology, development, and outcomes are increasingly recognized.

Purpose of the Study:

  • To highlight key aspects of sex differences in CVD and CHF.
  • To emphasize unanswered questions regarding these sex dimorphisms.
  • To advocate for sex-specific cellular mechanism analysis in CHF research.

Main Methods:

  • Review of existing literature on sex differences in cardiac disease.
  • Analysis of inconsistencies in current research findings.
  • Focus on the complex interplay of genetic and non-genetic factors in CHF development.

Main Results:

  • Women with CHF are often older and present with preserved systolic function compared to men.
  • Significant inconsistencies exist in the literature regarding underlying mechanisms of sex dimorphisms.
  • The precise molecular mechanisms driving sex differences in CHF remain unclear.

Conclusions:

  • Understanding sex dimorphisms in CHF is critical for effective treatment.
  • Cellular mechanisms must be analyzed within the context of each sex.
  • Further research is needed to resolve inconsistencies and clarify molecular pathways.

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