Exploring breath biomarkers for diagnosing Alzheimer's Disease

Antemortem biomarkers in nasally exhaled breath: A potential novel, noninvasive human diagnostic technique for Alzheimer’s Disease

NIH-funded research Northwestern University at Chicago · NIH-11053747

This study is looking at whether we can find signs of Alzheimer's Disease in the breath you exhale through your nose, which might help us diagnose the condition in a simple and non-invasive way.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionNorthwestern University at Chicago NIH-funded
Lab location1 site (Chicago, United States)
Project IDNIH-11053747 on NIH RePORTER

What this research studies

This research investigates whether biomarkers for Alzheimer's Disease can be detected in nasally exhaled breath. The team will analyze the presence of the neural protein Tau, which preliminary findings suggest is more concentrated in nasal breath compared to oral breath and correlates with the severity of dementia. By focusing on nasally exhaled samples, the study aims to leverage the unique anatomy of the nasal cavity, which may provide direct access to neural biomarkers. This noninvasive approach could lead to a new diagnostic technique for Alzheimer's Disease.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals experiencing cognitive decline or symptoms related to Alzheimer's Disease.

Not a fit: Patients with other forms of dementia unrelated to Alzheimer's may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could provide a simple and noninvasive method for early diagnosis of Alzheimer's Disease.

How similar studies have performed: While research on exhaled breath biomarkers is ongoing, this specific focus on nasally exhaled breath for Alzheimer's diagnosis is relatively novel.

Where this research is happening

Chicago, United States

Researchers

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 below.
Conditions Alzheimer disease dementia
Last reviewed 2026-06-13 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.