Heart Failure in Patients With Diabetes: Cells, Crosstalk and Consequences

This study is investigating how diabetes affects the heart at a cellular level, particularly in people who develop heart failure. Researchers will collect blood samples and study cell communication and tissue changes to better understand this connection. **You may be eligible if...** - You are over 18 years old - You are mentally able to understand and follow study instructions - You are willing to provide written consent **You may NOT be eligible if...** - You have severe anemia (very low hemoglobin) - You have an active serious infection (like pneumonia) - You are in acute heart failure caused by sepsis (severe infection in the bloodstream) - You are experiencing active chest pain or heart attack symptoms - You have severe liver failure, kidney failure, or very severe lung disease - You are pregnant or breastfeeding - You are institutionalized or court-ordered into care - You are currently taking part in another drug trial Talk to your doctor to see if this trial is right for you.