For years, doctors have struggled to fully understand the exact chemical steps that turn healthy blood sugar into diabetes. This new research looks at thousands of tiny chemical signals in the blood to find the hidden connections. By studying over 15,000 different chemical markers, researchers discovered a specific network that acts like a warning sign for the disease.
The study focused on people with normal blood sugar, prediabetes, and type 2 diabetes. They looked at how certain proteins in the blood change when short-chain organic acids build up. These acids, especially crotonic acid, act like hubs in a network that signals trouble. As the disease gets more severe, these specific chemicals accumulate in the blood, marking a clear progression from health to illness.
About 16.5% of the proteins in the blood were found to be chemically modified in a way that linked directly to these acid levels. Roughly 40% of these modified proteins moved in step with the dangerous acids. While we still do not fully understand every metabolic network behind disease development, this discovery points to a new mechanism. It suggests that tracking these specific chemical changes could help explain how diabetes develops long before symptoms appear.