How microglia help protect the brain's blood vessels during low oxygen levels

The protective role of microglia in preventing hypoxic disruption of blood-brain barrier integrity and VCID

['FUNDING_R01'] · SAN DIEGO BIOMEDICAL RESEARCH INSTITUTE · NIH-11045624

This study is looking at how certain brain cells help protect blood vessels during times when there isn't enough oxygen, especially in older adults, to see if this can help prevent memory problems and keep the brain healthy as we age.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorSAN DIEGO BIOMEDICAL RESEARCH INSTITUTE (nih funded)
Locations1 site (SAN DIEGO, UNITED STATES)
Trial IDNIH-11045624 on ClinicalTrials.gov

What this research studies

This research investigates the role of microglia, a type of immune cell in the brain, in maintaining the integrity of blood-brain barrier during episodes of low oxygen, particularly in older adults. The study examines how aging and conditions like hypertension can lead to blood vessel damage and cognitive decline. By using animal models, researchers will explore how microglia respond to low oxygen levels and whether their activation can prevent vascular leaks that contribute to dementia. The findings could provide insights into new therapeutic strategies for protecting brain health in aging populations.

Who could benefit from this research

Good fit: Ideal candidates for this research are older adults, particularly those with hypertension or early signs of cognitive decline.

Not a fit: Patients with non-age-related cognitive impairments or those without vascular contributions to their dementia may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to new treatments that help preserve cognitive function in older adults by protecting the blood-brain barrier.

How similar studies have performed: Previous studies have shown that targeting microglial activity can have protective effects on brain health, suggesting a promising avenue for this research.

Where this research is happening

SAN DIEGO, 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.

View on NIH RePORTER →

Last reviewed 2026-05-15 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.