Blood Markers at Birth May Help Identify Children at Risk for Type 1 Diabetes

Researchers at the University of Florida and Linköping University in Sweden have identified biological markers in umbilical cord blood that appear linked to later development of type 1 diabetes. The findings, published in Nature Communications, suggest a screening test using cord blood could one day help doctors identify children at risk for the disease before symptoms appear.

Type 1 diabetes develops when the immune system mistakenly attacks insulin-producing beta cells in the pancreas. Without these cells, the body cannot regulate blood sugar, requiring lifelong insulin treatment. An estimated 8.4 million people worldwide currently live with type 1 diabetes, with projections suggesting that number will double to 17 million within the next 20 years.

The research suggests that biological changes leading to type 1 diabetes begin during pregnancy itself. According to Angelica Ahrens, lead author of the study and assistant research scientist in microbiology at the University of Florida, inflammatory processes that make the pancreas vulnerable to immune attack may start developing in the womb.

"These are processes that could then make biological conditions more favorable for an attack on the pancreas," Ahrens explained. Understanding when and how these changes begin could help researchers develop ways to intervene earlier in the disease process.

Finding these markers in cord blood does not mean a child will definitely develop type 1 diabetes. As Ahrens emphasized, "It means that biology is being shaped during a period when systems are still highly adaptable." During early development, the body remains flexible and responsive to its environment.

A cord blood screening test could give doctors advance notice of which children are at higher risk, potentially opening doors to earlier monitoring and future preventive approaches. Currently, screening for type 1 diabetes relies primarily on genetic testing, which has limitations in predicting who will develop the disease.

Origin: tallahassee.com (News report). Evidence: News report — unverified, pending corroboration. Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.