NIH-funded research R01 grant

Investigating how herbicides affect gut bacteria and obesity

Official title: Defining the impact of developmental herbicide exposures on gut microbiome physiology and interactions with health

Funded at University of Illinois at Urbana-Champaign · NIH-11044359 · Data updated 2026-11-12

This study is looking at how common weed killers might affect the good bacteria in our guts and how that could lead to weight gain, especially if people are exposed to these chemicals when they are young.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Illinois at Urbana-Champaign
NIH-funded
Lab location1 site (Champaign, United States)
Project startDecember 5, 2024
Project endNovember 30, 2029
Funding year2025
Award (this year)$622,235
NIH project number1R01ES036174-01A1
Project IDNIH-11044359 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals who have been exposed to herbicides during critical developmental periods and are experiencing weight gain or obesity.

Less likely to help

Patients who have not been exposed to herbicides or do not have concerns related to obesity may not benefit from this research.

What this research studies

This research explores the effects of common herbicides on gut microbiome health and their potential role in promoting obesity. It focuses on how early life exposure to herbicides like glyphosate, atrazine, and 2,4-D can disrupt gut bacteria, which are crucial for regulating energy metabolism. By using innovative methods such as germ-free animal models and microbiome transplants, the study aims to identify specific microbial changes linked to increased body fat. The findings could provide insights into the relationship between environmental factors and obesity.

Why it matters

Potential benefit: If successful, this research could lead to new strategies for preventing obesity by understanding how environmental exposures influence gut health.

How similar studies have gone: Previous research has indicated that disruptions in gut microbiota can influence obesity, suggesting that this approach may yield valuable insights.

Where this research is happening

  • University of Illinois at Urbana-Champaign
    Champaign, United States
    Active

Researchers

  • Principal investigator: Gaulke, Christopher a — University of Illinois at Urbana-Champaign
  • Study coordinator: Gaulke, Christopher a

Related research

Other NIH-funded projects on the same topics.

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  • Aflatoxin exposure and child growth in Guatemala

    A study in rural Guatemala will track how exposure to aflatoxin relates to growth and gut health in young children.

    NIH research Arizona State University-Tempe Campus · Scottsdale, United States · NIH-11513260

  • Gut bacteria that can make cancer immunotherapy less effective

    This project will see if reducing chronic inflammation driven by certain gut bacteria can help immunotherapy work better for people whose cancers have stopped responding.

    NIH research University of Tx Md Anderson Can Ctr · Houston, United States · NIH-11478145

  • How gut bacteria affect how cancer drugs work

    This project looks at how the bacteria in your gut might change how well and with what side effects fluoropyrimidine cancer drugs like 5-FU work in people.

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  • Gut bacteria and cancer drugs: how your gut may change chemotherapy effectiveness

    This project studies how the gut microbiome might affect how well certain chemotherapy drugs work and their side effects in people with cancer.

    NIH research University of California, San Francisco · San Francisco, United States · NIH-11473233

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.