AIIMS Study Reveals Air Pollutants' Pathway to Placental Damage and Foetal Harm
An AIIMS Delhi study, funded by ICMR and published in EMBO Molecular Medicine, has for the first time detailed the biological pathway through which urban air pollution harms foetuses. Researchers found that fine particulate matter (PM2.5 and PM10) crosses the placental barrier, triggering inflammation and inhibiting IGFBP3 expression, a key protein for placental and embryo growth. This leads to restricted foetal growth and altered developmental trajectories. The study, involving rodents and delivery records of 994 women in Delhi and Deoghar, linked PM2.5 exposure to low birth weight and increased preeclampsia rates, highlighting the severe health consequences of air pollution on prenatal development.
Key Points
- An AIIMS Delhi study has mapped the biological pathway of how air pollutants breach the placental barrier and harm foetuses.
- Fine particulate matter (PM2.5 and PM10) activates inflammatory pathways, inhibiting IGFBP3, a protein crucial for foetal growth.
- This inhibition leads to restricted foetal growth and altered developmental trajectories, with long-term consequences.
- The study linked PM2.5 exposure to low birth weight and higher rates of preeclampsia in pregnant women.
- Risk mitigation strategies, including pollution monitoring integrated into prenatal care, are suggested.
Exam Facts
- Study conducted by: AIIMS Delhi.
- Funded by: ICMR.
- Key pollutants: PM2.5 and PM10.
- Key protein affected: IGFBP3.
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