Mitochondrial Substrate Utilization in the Diabetic Human Heart
This research aims to understand why people with diabetes, especially Type 2 diabetes, often develop heart failure. Scientists believe there's a link between how the heart uses energy (from tiny parts called mitochondria) and these heart problems. The study will carefully examine heart tissue samples from patients with heart failure or those who've had a heart transplant. They'll also use special scans to look at heart function and check blood sugar levels. By understanding these connections better, the researchers hope to find new ways to spot heart issues early in diabetic patients and develop improved treatments. This could help many people avoid serious heart complications.
At a glance
What is this study about?
This study is about understanding how Type 2 diabetes can lead to heart failure, even when other common causes like blocked arteries aren't present. This specific type of heart problem is sometimes called 'diabetic cardiomyopathy'. Researchers are particularly interested in the 'powerhouses' of our cells, called mitochondria, which produce the energy the heart needs to pump blood effectively. They believe that in people with diabetes, these mitochondria might not be working properly, which could be a key reason for heart weakening.
The team will look closely at heart tissue samples from patients who have heart failure or have recently had a heart transplant. They will investigate how these energy-producing parts are working, check for signs of inflammation, and examine genetic information. They will also use special MRI scans to get detailed pictures of the heart and see how well it's pumping, both at rest and under a bit of stress. Blood tests will be done to understand blood sugar control.
The goal of all this work is to gain a clearer picture of exactly what goes wrong inside the heart cells when someone has diabetes. By uncovering these details, scientists hope to develop better tests to find these heart problems earlier and create new treatments to prevent or manage them more effectively, ultimately improving the health of people living with diabetes.
Key takeaways
- This study investigates why diabetes can lead to heart failure.
- It focuses on how heart cells use energy, especially from mitochondria.
- Researchers will study heart tissue samples and use special scans.
- The goal is to find better ways to diagnose and treat heart problems in people with diabetes.
- Participation involves medical tests and contributing to important medical research.
Who may be eligible?
To be part of this study, you generally need to be between 20 and 85 years old. You might be eligible if you have heart failure that your doctor thinks needs a small heart tissue sample (biopsy), or if you've recently had a heart transplant and a biopsy is planned. This applies whether or not you also have Type 2 diabetes.
However, there are also reasons why you might not be able to join. For example, if you've had an infection recently, have certain autoimmune diseases, or are pregnant, you wouldn't be able to take part. Other reasons include severe liver disease (unless it's related to heart failure), cancer, or if you can't give your informed consent.
If the study includes a special MRI scan, there are additional safety checks. You wouldn't be able to have this scan if you have certain heart rhythm problems (unless you have a pacemaker), unstable chest pain, very low blood pressure, or severe, uncontrolled heart failure. Your study doctor will discuss all these points with you carefully.
Could this study suit you?
Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.
- Are you between 20 and 85 years old?
- Do you have heart failure or have you had a recent heart transplant, with a planned heart tissue sample?
- Are you generally in good health apart from your heart condition (e.g., no recent infections or certain other illnesses)?
- Are you able to provide your consent to take part in the study?
- Are you not pregnant?
What does participation involve?
If you decide to take part, the study will involve collecting heart tissue samples, likely during a procedure you would have anyway for your heart condition. You would also have special heart scans called MRI and spectroscopy, which help researchers look at your heart function and energy use. Blood tests, including some to check your sugar levels, would also be taken. The study does not mention specific visits, medication changes, or the full duration, but all these details would be explained thoroughly by the research team before you agree to participate.
Potential risks and benefits
Locations (1)
- University-Hospital Düsseldorf Division of Cardiology, Pulmonary Disease and Vascular MedicineVerified postcodeDüsseldorf, Germany· Recruiting
Common questions
What is Type 2 diabetes?
Type 2 diabetes is a common condition where your body doesn't produce enough insulin, or the insulin it produces doesn't work properly, leading to high blood sugar levels.
What is heart failure?
Heart failure means your heart isn't pumping blood around your body as well as it should. It doesn't mean your heart has stopped working.
What are mitochondria?
Mitochondria are like tiny power generators inside our cells. They turn the food we eat into energy that our body, especially our heart, needs to work.
Will I have to take any new medicines?
The information provided does not mention taking new medicines as part of this study. It focuses on observation and testing.
How long will the study last for me?
The study description doesn't specify the exact duration for each participant, but the research team will provide you with a clear timeline if you are eligible.
How to find out more
Elric Zweck, MD
Always speak to your GP or specialist before deciding to take part in a study.
Interested in taking part?
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