Understanding how sex affects immune responses in older adults

Sex Specific Regulation of B1 B Cell Self-Renewal and Natural Antibody Production

['FUNDING_FELLOWSHIP'] · WESTERN MICHIGAN UNIV SCHOOL OF MEDICINE · NIH-11003671

This study is looking at how being male or female affects the immune system's ability to fight off infections in older adults, especially why older men seem to get pneumonia more often, and it hopes to find better ways to prevent this illness.

Quick facts

Phase['FUNDING_FELLOWSHIP']
Study typeNih_funding
SexAll
SponsorWESTERN MICHIGAN UNIV SCHOOL OF MEDICINE (nih funded)
Locations1 site (KALAMAZOO, UNITED STATES)
Trial IDNIH-11003671 on ClinicalTrials.gov

What this research studies

This research investigates how sex differences influence the self-renewal and natural antibody production of a specific type of immune cell called B1 B cells in older adults. By examining both male and female immune responses, the study aims to uncover why older men are more susceptible to pneumonia caused by Streptococcus pneumoniae, despite the availability of vaccines. The researchers will analyze the role of anatomical location and sex in the functioning of these B cells, which are crucial for producing natural antibodies that help protect against infections. This work could lead to improved strategies for preventing pneumonia in older populations.

Who could benefit from this research

Good fit: Ideal candidates for this research are older adults aged 65 and above, particularly those interested in understanding immune health and susceptibility to infections.

Not a fit: Patients under the age of 65 or those without interest in immune system research may not benefit from this study.

Why it matters

Potential benefit: If successful, this research could enhance our understanding of immune responses and lead to better prevention strategies for pneumonia in older adults.

How similar studies have performed: Previous research has shown that understanding sex differences in immune responses can lead to significant advancements in treatment and prevention strategies, suggesting this approach has potential for success.

Where this research is happening

KALAMAZOO, 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.