NIH-funded research R01 grant

How diabetes-related changes in gut bacteria affect the heart

Official title: Role of Diabetes Associated Intestinal Dysbiosis in cardiac disease

Funded at Georgia State University · NIH-11118800 · Data updated 2026-11-12

Looks at whether diabetes-related changes in gut bacteria allow bacteria or their products to leak into the body and harm the heart in people with diabetes.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionGeorgia State University
NIH-funded
Lab location1 site (Atlanta, United States)
Project startJuly 1, 2023
Project endJune 30, 2028
Funding year2025
Award (this year)$532,506
NIH project number5R01HL168465-03
Project IDNIH-11118800 on NIH RePORTER

Who could benefit from this research

Could help

People with diabetes, especially those with signs or risk factors for heart disease, would be most likely to benefit from related treatments or trials.

Less likely to help

People without diabetes or those whose heart problems are caused by non-inflammatory issues may be less likely to benefit.

What this research studies

Researchers will transfer gut bacteria from diabetic animals to non-diabetic animals and monitor heart function, gut barrier strength, and signs of bacterial spread. They will examine whether slower gut movement and higher intestinal sugar levels drive harmful shifts in the microbiome. The team will identify specific microbes or microbial products linked to inflammation and cardiac dysfunction. Finally, they will test approaches to change the microbiome to prevent or reduce heart problems related to diabetes.

Why it matters

Potential benefit: Could lead to microbiome-based strategies to prevent or reduce heart damage in people with diabetes.

How similar studies have gone: Prior animal studies, including microbiota transplant experiments, have linked diabetic gut bacteria to heart dysfunction, but human clinical evidence for microbiome treatments in diabetic heart disease remains limited.

Where this research is happening

  • Georgia State University
    Atlanta, United States
    Active

Researchers

  • Principal investigator: Zou, Jun — Georgia State University
  • Study coordinator: Zou, Jun

Related research

Other NIH-funded projects on the same topics.

  • Diabetes-related gut imbalance and heart disease in diabetes patients

    A study to understand how changes in gut bacteria caused by diabetes may raise the risk of heart disease and to explore ways to prevent it.

    NIH research Georgia State University · Atlanta, United States · NIH-11381740

  • How diabetes affects gut bacteria and heart disease

    This study is looking at how changes in gut bacteria from diabetes might increase the risk of heart disease, even if blood sugar levels are normal, and it hopes to find new ways to help prevent heart problems for people with diabetes.

    NIH research Georgia State University · Atlanta, United States · NIH-10874429

  • Understanding Heart Disease in Type 1 Diabetes

    This research explores new ways to protect the heart from damage in people with type 1 diabetes, focusing on natural body chemicals called Substance P.

    NIH research West Virginia University · Morgantown, United States · NIH-11194459

  • Investigating how certain proteins affect heart disease in people with type 1 diabetes

    This study is looking at how a protein called substance P might help protect the hearts of people with type 1 diabetes, and it hopes to find new ways to prevent or improve heart problems related to the condition.

    NIH research West Virginia University · Morgantown, United States · NIH-11074273

  • HEARTS hypertension and diabetes care in Guatemala

    This grant tests how well the HEARTS primary care model works in Guatemala to improve blood pressure and blood sugar control for patients.

    NIH research University of Michigan at Ann Arbor · Ann Arbor, United States · NIH-11645315

  • Retinal signals in early diabetes and how they affect vision

    This grant looks at how diabetes changes the signals in the retina that control vision, with a focus on inner retinal cells and how these changes may lead to vision problems.

    NIH research University of Arizona · Tucson, United States · NIH-11641965

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.