How Ganoderma Lucidum May Help Protect the Heart in Diabetes

Diabetes is a leading chronic disease worldwide, and its complications can be life-threatening. One serious complication is diabetic cardiomyopathy—a condition where the heart muscle becomes damaged and weakened over time, even in people whose blood sugar is well managed. This type of heart damage is a major cause of death among individuals living with diabetes, making it an important target for research and prevention.

Ganoderma lucidum, also known as reishi or lingzhi, is a medicinal fungus used in traditional medicine. Polysaccharides are complex carbohydrate molecules found in its fruiting bodies. Previous research has suggested that these polysaccharides may help with blood sugar control and have even shown promise in preventing heart enlargement caused by high blood pressure. However, their specific effects on diabetes-related heart damage remained unclear until now.

Researchers tested Ganoderma lucidum polysaccharides in mouse models of both type 1 and type 2 diabetes. In both groups, the treatment appeared to reduce structural damage to the heart and improve heart function. Importantly, the GLPs also reduced inflammation in heart tissue and slowed the accumulation of scar tissue (fibrosis), both hallmarks of diabetic cardiomyopathy.

The study used RNA sequencing—a technique that examines which genes are active—to explore how GLPs might work. The results suggested that the polysaccharides reduce inflammation by affecting a specific cellular pathway called NF-κB signaling, which plays a key role in triggering inflammatory responses.

This research adds to growing evidence that Ganoderma lucidum polysaccharides may have protective effects in diabetes, particularly against heart damage. The fact that benefits appeared in both type 1 and type 2 diabetes models is noteworthy, suggesting the mechanism might apply across different forms of the disease.

However, this study was conducted in mice, not humans. Much more research—including human clinical trials—would be needed before any conclusions could be drawn about whether these polysaccharides are safe or effective for people with diabetes. If you're interested in complementary approaches to diabetes management, always speak with your healthcare provider before trying new supplements or treatments.

Source: Frontiers in bioscience (Landmark edition). Evidence type: PubMed indexed literature. 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.