NIH-funded research R01 grant

Investigating how aflatoxin exposure affects child growth and gut health in Guatemala

Official title: Aflatoxin Exposure, Growth Faltering, and the Gut Microbiome among Children in Rural Guatemala

Funded at Arizona State University-Tempe Campus · NIH-10973192 · Data updated 2026-11-12

This study is looking at how a harmful substance found in corn affects the growth and gut health of children in rural Guatemala, and it aims to help us understand how these toxins can impact kids' overall well-being.

More Gut Microbiome research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionArizona State University-Tempe Campus
NIH-funded
Lab location1 site (Tempe, United States)
Project startJanuary 1, 2023
Project endOctober 31, 2027
Funding year2025
Award (this year)$304,984
NIH project number5R01ES033999-03
Project IDNIH-10973192 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are children aged 6 to 27 months living in rural Guatemala who are at risk of aflatoxin exposure and growth faltering.

Less likely to help

Children outside the specified age range or those not living in areas with high aflatoxin exposure may not benefit from this research.

What this research studies

This research focuses on understanding the impact of aflatoxin B1, a carcinogen found in maize, on the growth and gut microbiome of children in rural Guatemala. By following a group of children over time, the study will assess how exposure to aflatoxin correlates with growth faltering and changes in gut health. The researchers will measure aflatoxin levels in the children's blood and analyze their dietary habits, while also exploring the biological mechanisms behind these effects using advanced laboratory techniques. This comprehensive approach aims to provide insights into the relationship between environmental toxins and child health.

Why it matters

Potential benefit: If successful, this research could lead to improved nutritional strategies and interventions to enhance child growth and health in regions affected by aflatoxin exposure.

How similar studies have gone: Previous research has indicated associations between aflatoxin exposure and child growth, but this study aims to provide more detailed insights through a longitudinal approach, making it a novel investigation.

Where this research is happening

  • Arizona State University-Tempe Campus
    Tempe, United States
    Active

Researchers

  • Principal investigator: Krajmalnik-Brown, Rosa — Arizona State University-Tempe Campus
  • Study coordinator: Krajmalnik-Brown, Rosa

Related research

Other NIH-funded projects on the same topics.

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    Scientists will study how the gut microbiome changes thousands of drugs into new forms, which could affect how well a medicine works or whether it causes side effects.

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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.

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  • 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

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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.