Sepsis-induced cardiomyopathy (SIC) leads to higher patient death rates, and currently, there are no targeted treatments available.
Research shows that the protein PKCδ plays a crucial role in causing abnormal calcium handling and mitochondrial dysfunction in the heart during sepsis.
Mice lacking PKCδ (knockout mice) exhibit better heart function and reduced mitochondrial damage compared to normal mice when exposed to sepsis, suggesting PKCδ could be a potential target for protection against cardiac issues in sepsis.
A high-saturated fat diet can increase the risk of arrhythmias and sudden cardiac death by affecting calcium homeostasis in the heart.
The research in mice showed that saturated fat activates the enzyme NOX2, leading to dangerous changes in heart rhythm and calcium handling, while polyunsaturated fats do not have this effect.
Inhibiting NOX2 can prevent the harmful heart effects of a high saturated fat diet, suggesting that NOX2 inhibitors might be a new treatment for heart rhythm issues related to excessive fat intake.