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Updated: Jun 19, 2026
06:31
Transuterine Fetal Tracheal Occlusion Model in Mice
Published on: February 5, 2021
Boys live dangerously in the womb.
Johan G Eriksson1, Eero Kajantie, Clive Osmond
1Department of General Practice and Primary Health Care, University of Helsinki, Helsingin yliopisto, Finland.
Summary
Fetal growth strategies impact adult health. Boys
Area of Science:
- Developmental biology
- Cardiovascular health
- Human fetal growth
Background:
- Fetal growth is limited by maternal nutrient supply.
- Boys exhibit faster in-utero growth and higher risk of undernutrition.
- Fetal undernutrition is linked to adult cardiovascular disorders like hypertension.
Purpose of the Study:
- To investigate the association between birth size and adult hypertension in men and women.
- To explore sex-specific differences in fetal growth strategies and their links to hypertension.
- To examine the influence of maternal factors on fetal growth and subsequent hypertension risk.
Main Methods:
- Studied 2003 adults (around 62 years old) born in Helsinki, Finland.
- Assessed birth weight, placental size (area, minor diameter), and adult hypertension status.
- Analyzed associations between birth parameters, maternal socioeconomic status, maternal height, and hypertension.
Main Results:
- Hypertension was associated with low birth weight in both sexes.
- In men, hypertension linked to a long placental minor diameter and maternal socioeconomic status.
- In women, hypertension linked to small placental area and maternal height.
Conclusions:
- Sex-specific fetal growth strategies influence adult hypertension risk.
- Boys' rapid growth strategy may increase vulnerability to undernutrition and later hypertension.
- Maternal factors play a role in mediating sex-specific hypertension risks related to fetal growth.
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