A team of researchers from the University of Bristol has made a major breakthrough in cardiology and nephrology by creating an innovative method for detecting hidden vascular pathologies.

According to the results of a study published in the journal Nature Communications, the scientists have developed a technology for assessing the condition of the glycocalyx—the thin protective protein-saccharide layer lining the inner surface of blood vessels. Damage to this microscopic structure serves as the earliest marker for the development of cardiovascular disease and kidney dysfunction.

The study's authors demonstrated that during blood circulation, red blood cells continuously interact with capillary walls, maintaining a clear biochemical "fingerprint" of the vascular bed's condition. A new technique allows these markers to be read using a routine blood test, diagnosing dangerous systemic changes at asymptomatic stages, when traditional clinical tests do not yet detect any abnormalities.

The introduction of this technology into widespread medical practice will radically change approaches to preventative therapy and prevent the development of irreversible chronic pathologies.