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Related Experiment Videos

Bidirectional Associations Between Frailty and Preeclampsia: A Two-Sample Mendelian Randomization Study.

Chenghang Tian1, Die Hu1, Jing Feng1

  • 1School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, People's Republic of China.

International Journal of Women'S Health
|June 17, 2026
PubMed
Summary

This study suggests frailty increases preeclampsia risk, and preeclampsia may worsen frailty. These findings highlight frailty as a potential target for obstetric risk stratification.

Keywords:
Mendelian randomizationcausalityfrailtygenetic epidemiologypreeclampsia

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Area of Science:

  • Genetics
  • Obstetrics
  • Gerontology

Background:

  • Frailty and preeclampsia (PE) are significant health concerns.
  • The genetic relationship between frailty and PE is not well understood.

Purpose of the Study:

  • To investigate the potential bidirectional genetic relationship between frailty and preeclampsia using Mendelian randomization.
  • To assess if genetic predisposition to frailty influences PE risk and vice versa.

Main Methods:

  • Bidirectional two-sample Mendelian randomization analysis.
  • Utilized summary statistics from large GWAS for frailty index (FI) and preeclampsia (PE).
  • Employed inverse variance weighted (IVW) method and sensitivity analyses for robustness.

Main Results:

  • Genetically predicted frailty was associated with an increased odds of preeclampsia in two independent datasets.
  • Preeclampsia showed a significant causal effect on frailty in one dataset.
  • Consistent findings across sensitivity analyses supported the robustness of the associations.

Conclusions:

  • Suggestive genetic evidence supports a bidirectional relationship between frailty and preeclampsia.
  • Frailty may be a risk factor for PE, and PE could exacerbate frailty.
  • Frailty warrants further investigation as a potential target for obstetric risk stratification.