NIH-funded research NIH-funded research

Leptin and fat cells: how obesity may worsen lung infections like COVID-19 and flu

Official title: The role of adipocyte-drive inflammation and leptin pathway in pulmonary viral infections caused by SARS-CoV-2 and influenza A viruses

Funded at Louisiana State Univ A&m Col Baton Rouge · NIH-11382855 · Data updated 2026-11-12

A study explores how fat tissue and the leptin pathway might change the body's first lung defenses during respiratory infections in people who are obese or have diabetes.

More Influenza research and trials

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionLouisiana State Univ A&m Col Baton Rouge
NIH-funded
Lab location1 site (Baton Rouge, United States)
Project startJanuary 2, 2019
Project endJune 30, 2029
Funding year2026
Award (this year)$253,001
NIH project number5P20GM130555-08
Project IDNIH-11382855 on NIH RePORTER

Who could benefit from this research

Could help

Adults with obesity and/or type 2 diabetes who are at high risk for severe respiratory infections.

Less likely to help

People without obesity or diabetes may not experience direct benefits from this research.

What this research studies

This project looks at how dysfunctional fat cells and the leptin hormone affect lung immune responses during infections with influenza A and coronaviruses. It uses biological models to understand how obesity-related changes could make the lungs more vulnerable to viral damage. The researchers aim to identify signals from adipocytes that alter airway and alveolar defenses, potentially leading to worse outcomes. The goal is to uncover targets in the leptin pathway that could guide new therapies for at-risk patients.

Why it matters

Potential benefit: If successful, the findings could lead to new treatments that reduce lung injury in people with obesity and diabetes during viral infections.

How similar studies have gone: Previous work suggests metabolic factors influence lung immunity, but this project seeks specific links to adipocyte signaling and leptin.

Where this research is happening

  • Louisiana State Univ A&m Col Baton Rouge
    Baton Rouge, United States
    Active

Researchers

  • Principal investigator: Carossino, Mariano — Louisiana State Univ A&m Col Baton Rouge
  • Study coordinator: Carossino, Mariano

Related research

Other NIH-funded projects on the same topics.

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.