Protein Linked to Diabetes-Related Heart Damage
Oklahoma Medical Research Foundation researchers identify PFKFB2 as a possible factor in heart vulnerability among people with diabetes.
Updated on Nov. 3, 2026 in Heart Disease
Researchers at the Oklahoma Medical Research Foundation have identified a protein, PFKFB2, that may help explain why people with diabetes face greater heart vulnerability. In mice lacking the protein, researchers observed enlarged hearts, less efficient blood pumping and a higher risk of dangerous arrhythmias.
Why it matters
The findings point to a specific molecular pathway that may connect diabetes to heart disease, a link that affects many residents of Oklahoma City and across the state. Researchers are exploring whether increasing PFKFB2 or developing a drug that keeps it more active could protect the heart.
The study, published in Circulation: Arrhythmia and Electrophysiology, used mice lacking PFKFB2 to show enlarged hearts and higher arrhythmia risk compared with control mice, and found reduced PFKFB2 levels in the hearts of people with diabetes. Whether these mouse-based results translate to human patients has not been established.
The players
Oklahoma Medical Research Foundation
A biomedical research institution based in Oklahoma City that conducts research into heart, immune and other diseases.
The details
PFKFB2 regulates how the heart processes sugar, acting as a gate that allows the heart to use sugar efficiently. When the protein becomes impaired, sugar spills over into alternate pathways that, over time, lead to heart disease.
Timeline
Nov. 3, 2026: Article published on the study identifying the PFKFB2 protein.
Big Picture
The discovery adds a specific molecular target to the long-standing clinical link between diabetes and heart disease, a connection that has driven decades of cardiovascular research. It shifts attention toward sugar-processing pathways in the heart as a possible therapeutic focus.
The findings do not yet change treatment for people with diabetes, but they highlight heart-protective sugar-processing pathways that future therapies may target. Patients concerned about diabetes-related heart risk should continue discussing their cardiovascular health with their physicians.
The takeaway
Managing blood sugar remains important for heart health, and people with diabetes should keep regular cardiology check-ups. Ongoing research may eventually lead to drugs that protect the heart by supporting how it processes sugar.
Further reading
Explore more on Heart Disease coverage for Oklahoma City readers.
Source note: This article includes information reported by The Journal Record.
