Type 2 Diabetes Linked to Altered Atherosclerosis Mechanisms

Diabetes may ⁣Weaken Arteries, Increasing Stroke and Heart Attack Risk

New research sheds light on why people with type 2 diabetes are more vulnerable to cardiovascular disease.

Millions of Americans‍ live with type 2 diabetes, ⁤a⁢ condition⁢ that considerably⁤ increases the risk of heart attacks,⁣ strokes, and premature death. While the link between diabetes ⁣and cardiovascular disease is well-established, the underlying reasons have ‍remained unclear. Now, a ‍groundbreaking ⁢study from Lund University in Sweden offers crucial insights into⁢ the molecular mechanisms driving this heightened ⁤risk.

The research team, ⁢led by cardiologists Dr. andreas ⁢Edsfeldt and Dr. Isabel Gonçalves, analyzed atherosclerotic plaques‍ – the fatty⁢ buildups ⁣that can clog arteries – from 219 individuals with cardiovascular disease, including 72 with type 2 diabetes. Their findings, published in Nature Communications, reveal a critical difference: plaques from individuals with type 2‍ diabetes contained significantly lower levels of protective connective tissue.

“A stroke or heart attack often leads to reduced quality of life and,in the worst-case scenario,death,” says Dr. Edsfeldt. “Since we know that people with type 2 diabetes have a ‍higher risk of being affected, we set⁤ particularly enterprising treatment goals for patients with atherosclerosis ⁣and type 2 diabetes.”

The researchers identified a lack of a specific growth factor called TGF-beta2 ⁤as a ⁤key contributor to this weakened plaque structure. they also discovered a concerning link between high blood sugar levels and a diminished ⁤ability to form protective ⁤connective tissue within the plaques, further increasing the⁣ risk of⁤ cardiovascular complications.

“High blood glucose levels were associated with lower levels of protective proteins in the atherosclerotic plaques, which increased the risk⁣ of cardiovascular complications over⁢ time,”⁣ explains Dr. ⁢Edsfeldt. “This finding suggests that it is vital for people with type 2 diabetes to keep⁤ their blood glucose levels under control to reduce the risk of cardiovascular disease, and that poor glycemic control may reduce the body’s⁣ ability to produce protective⁣ proteins in the atherosclerotic plaques.”

This groundbreaking research opens new avenues for developing targeted treatments for individuals with type 2 diabetes.

“Our hope is that this knowledge will be used to ⁢develop tailored treatments for people with type 2 diabetes that reduce the risk of developing a stroke and ‍heart attack,” says Dr.Gonçalves. “One possibility is to develop ⁢drugs that increase the ⁤level of protective proteins in the atherosclerotic plaques or a treatment that stabilises the plaque.”

The study was funded ‍by several organizations, including ⁤the Swedish Research Council, the Swedish Heart and Lung Foundation, and the Crafoord Foundation.

Diabetes Weakening Arteries, Raising Stroke and Heart Attack Risk: An Interview ‍with ‍Dr. Andreas Edsfeldt

NewsDirectory3: Dr. edsfeldt, your recent study in Nature Communications ⁢shed light on why people with type 2 diabetes have an increased ⁣risk for cardiovascular disease. ‍Can you explain the key findings?

Dr. ⁢Andreas Edsfeldt: Our team at lund University‍ examined atherosclerotic plaques – the‍ fatty buildups in arteries -⁤ from individuals⁢ with and without type ⁣2 diabetes. We discovered that plaques from those ⁢with ⁢diabetes had significantly lower levels ⁣of protective connective tissue. This weaker structure makes them ‍more prone to rupture, leading to a heart ⁤attack or stroke.

NewsDirectory3: ⁤What specifically contributes to this weakened plaque structure⁣ in individuals with ‍diabetes?

Dr. Edsfeldt: We identified a deficiency in a growth factor called TGF-beta2‍ as a ⁣major contributor.We also found a concerning link between high blood sugar and a reduced ability to form protective connective tissue within the plaques, further escalating the ⁢risk.

NewsDirectory3: What does this mean for‍ people living with type 2 diabetes?

Dr. Edsfeldt: This emphasizes the importance of tight blood sugar control. Keeping glucose levels within a healthy range appears vital‍ to ensuring the body can produce protective proteins in the plaques, thereby⁤ lowering the risk of cardiovascular complications.

NewsDirectory3: What are⁢ the next steps ⁣based on these findings?

Dr. Edsfeldt: We hope this ⁢opens doors for developing targeted therapies for individuals with ⁣type 2 diabetes. the goal is to find ways to either increase the level⁣ of these protective proteins in the plaques or stabilize the plaque itself, ultimately ‍reducing the risk of heart attacks and strokes.