Hypertensive disorders in pregnancy and timing of pubertal development in daughters and sons

Lea Lykke Harrits Lunddorf1, Nis Brix1, Andreas Ernst1,2

  • 1Department of Public Health, Research Unit for Epidemiology, Aarhus University, 8000 Aarhus C, Denmark.

Insights

Maternal hypertensive disorders may lead to earlier pubertal development in daughters. This study found no significant impact on sons' pubertal timing, suggesting a potential sex-specific effect.

Area of Science:

  • Reproductive endocrinology
  • Maternal-fetal medicine
  • Pediatric development

Background:

  • Existing literature shows mixed results on preeclampsia and pubertal timing in daughters, with no clear association in sons.
  • Previous studies have not extensively explored other hypertensive disorders like hypertension, eclampsia, or HELLP syndrome in relation to pubertal timing.

Purpose of the Study:

  • To investigate the association between maternal hypertensive disorders during pregnancy and pubertal development in daughters and sons.
  • To examine specific hypertensive conditions, including preeclampsia, eclampsia, HELLP syndrome, and hypertension, and their impact on pubertal milestones.

Main Methods:

  • A longitudinal cohort study of 15,819 mother-child pairs from the Danish National Birth Cohort.
  • Maternal hypertensive disorders were recorded during pregnancy; pubertal development (Tanner stages, menarche, ejaculation, etc.) was self-reported by children from age 11 to 18.
  • Compared pubertal timing in children exposed to maternal hypertensive disorders versus unexposed children, analyzing mean differences in age at pubertal milestones.

Main Results:

  • Daughters of mothers with preeclampsia, eclampsia, or HELLP syndrome showed a tendency towards earlier pubertal timing (combined marker: -2.0 months).
  • Daughters of mothers with hypertension also exhibited trends towards earlier pubertal milestones, though not statistically significant (combined marker: -1.0 months).
  • No significant differences in pubertal timing were observed in sons of mothers with any hypertensive disorder.

Conclusions:

  • Maternal hypertensive disorders during pregnancy may be associated with accelerated pubertal timing in daughters.
  • The findings suggest a potential sex-specific effect, with no observed impact on sons' pubertal development.
  • Further research is necessary to establish causality and understand the underlying mechanisms linking maternal hypertensive disorders to daughter's pubertal timing.
Abstract

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