Fathers' microplastic exposure may raise risk of diabetes in daughters: Study
New Delhi, Dec 27
A father's exposure to microplastics can trigger metabolic dysfunctions in children, with daughters more at risk of developing diabetes, according to animal studies.
Microplastics are tiny plastic particles (less than 5 millimetres) resulting from the breakdown of consumer products and industrial waste.
While microplastics have already been detected in human reproductive systems, the study, published in the Journal of the Endocrine Society, is the first to bridge the gap between paternal exposure to microplastics and the long-term health of the next generation.
"Our discovery opens a new frontier in environmental health, shifting the focus toward how both parents' environments contribute to the health of their children," said lead author Changcheng Zhou, Professor of biomedical sciences in the University of California, Riverside's School of Medicine.
"These findings from a mouse study likely have implications for humans. Men planning to have children should consider reducing their exposure to harmful substances like microplastics to protect both their health and that of their future children," Zhou added.
For the study, the team induced metabolic disorders -- such as increased blood pressure, high blood sugar, and excess body fat -- in mouse models by feeding them a high-fat diet.
The findings showed that female offspring of male mice exposed to microplastics were significantly more susceptible to metabolic disorders than offspring of unexposed fathers, despite all offspring being fed the same high-fat diet.
"The exact reasons for this sex-specific effect are still unclear," Zhou said.
"In our study, female offspring developed diabetic phenotypes. We observed upregulation of pro-inflammatory and pro-diabetic genes in their livers -- genes previously linked to diabetes. These changes were not seen in male offspring," the researcher added.
While male offspring did not develop diabetes, they showed a slight yet significant decrease in fat mass. Female offspring showed decreased muscle mass alongside increased diabetes, the team said.
Zhou emphasized that the study suggests the impact of plastic pollution is not limited to the individual exposed; it may leave a biological imprint that predisposes children to chronic diseases.
— IANS
Reader Comments
As a mother of a young daughter, this is terrifying. We already worry about so many things, and now this? The government should launch a massive awareness campaign about microplastics. Our chai in plastic cups, water bottles... it's everywhere! 😟
Interesting study, but it's on mice. We need more human studies before jumping to conclusions. Still, it's a good reason to reduce plastic use. Our grandparents lived with steel and clay, and they were healthier. Maybe we should go back to those ways.
Respectfully, while the science is important, the messaging feels a bit alarmist. "Men planning to have children should consider reducing exposure" – this puts the onus on individuals when the problem is systemic. We need policy changes and corporate accountability, not just personal guilt.
The sex-specific effect is the most puzzling part. Why only daughters? Scientists need to figure this out. In the meantime, I'm telling my brother who's trying for a baby to be careful. No more reheating food in plastic containers!
This connects so many dots. India already has a diabetes epidemic. If paternal exposure is a contributing factor, it's a public health emergency. We need research from Indian institutes on our population. Jai Hind, but we need to act on this.
We welcome thoughtful discussions from our readers. Please keep comments respectful and on-topic.