NIH-funded research R21 grant

Using blood-based markers to understand cognitive decline in diabetes patients

Official title: Plasma-Based Neuronal Insulin Signaling Exosomes as a Biomarker for Cognitive Impairment in Diabetes

Funded at Hennepin Healthcare Research Institute · NIH-10810540 · Data updated 2026-11-12

This study is looking at how diabetes might affect brain insulin signaling and memory in older adults, using tiny particles from blood to help find early signs of cognitive decline and ways to prevent it.

More Cognitive Impairment research and trials

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionHennepin Healthcare Research Institute
NIH-funded
Lab location1 site (Minneapolis, United States)
Project startSeptember 1, 2024
Project endJune 30, 2026
Funding year2024
Award (this year)$212,816
NIH project number1R21AG081689-01A1
Project IDNIH-10810540 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are older adults diagnosed with diabetes who may be at risk for cognitive impairment.

Less likely to help

Patients without diabetes or those who do not exhibit any cognitive impairment may not benefit from this research.

What this research studies

This research investigates how insulin signaling in the brain is affected by diabetes and its potential link to cognitive impairment, particularly in older adults. The study focuses on analyzing plasma-derived exosomes, which are small vesicles that can carry important biological information, to assess neuronal insulin signaling. By understanding these mechanisms, the research aims to identify early indicators of cognitive decline in diabetic patients and explore potential strategies for prevention. Participants will undergo assessments to evaluate their cognitive function and the state of their insulin signaling.

Why it matters

Potential benefit: If successful, this research could lead to early detection methods for cognitive decline in diabetic patients and inform strategies to prevent or mitigate this decline.

How similar studies have gone: While the specific approach of using plasma-based exosomes to study neuronal insulin signaling is relatively novel, there is existing research indicating a connection between diabetes and cognitive decline that supports the need for this investigation.

Where this research is happening

  • Hennepin Healthcare Research Institute
    Minneapolis, United States
    Active

Researchers

  • Principal investigator: Sabayan, Behnam — Hennepin Healthcare Research Institute
  • Study coordinator: Sabayan, Behnam

Related research

Other NIH-funded projects on the same topics.

  • Practical tools to boost cognitive screening for older adults with diabetes

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    NIH research Johns Hopkins University · Baltimore, United States · NIH-11430899

  • A Blood Test to Understand Memory Changes in Diabetes

    This project explores how a blood test might help us understand and predict memory changes in older adults living with diabetes.

    NIH research Hennepin Healthcare Research Institute · Minneapolis, United States · NIH-11175378

  • Identifying protein markers that predict cognitive impairment in people with type 2 diabetes

    This study is looking at how type 2 diabetes might affect thinking and memory, and it’s for people with diabetes who want to understand more about their brain health; by checking certain proteins in the blood, researchers hope to find clues that could help spot early signs of cognitive problems.

    NIH research University of Colorado Denver · Aurora, UNITED STATES · NIH-10951176

  • Investigating how stress in brain cells affects cognitive function in people with type 2 diabetes.

    This study is looking at how stress in brain cells might affect thinking and memory in people with type 2 diabetes, and it hopes to find ways to fix these changes to help improve brain function.

    NIH research Wright State University · Dayton, United States · NIH-10897829

  • How type 2 diabetes affects brain health and dementia risk

    This study is looking at how not managing type 2 diabetes and prediabetes can affect brain health and memory in young adults aged 18 to 45, and it wants to find out if better diabetes management can help keep your mind sharp.

    NIH research University of Michigan at Ann Arbor · Ann Arbor, United States · NIH-10854563

  • 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

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.