Gastrointestinal Tract News and Research

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Study finds widespread microplastics in children and suggests diet may shape exposure

Researchers detected 19 types of microplastics in the urine of 10-year-old children, with particles present in over 91% of samples and a median concentration of 250 particles per milliliter. Greater adherence to the Mediterranean diet was associated with shifts in specific microplastic polymers, suggesting dietary patterns may influence exposure pathways.

3 Mar 2026

Optical fiber probe detects nanoliter-scale biological fluid conductivity

Some of the most revealing signals about human health are carried in fluids that are almost impossible to measure.

2 Mar 2026

Distinct gut toxicity patterns emerge with targeted cancer treatments

A new paper was published in Volume 13 of Oncoscience on February 6, 2026, titled "Gastrointestinal toxicity of targeted cancer therapies in the United States: Clinicopathologic patterns, FDA safety frameworks, and implications for national patient protection."

20 Feb 2026

Gut microbiome may shape response to GLP-1 drugs, new review suggests

This review examines how GLP-1 receptor agonists and the gut microbiome influence one another through bile acid signaling, short-chain fatty acids, and inflammatory pathways. It explores how microbial composition may shape treatment response and highlights the need for controlled human studies to enable microbiome-informed precision therapy.

19 Feb 2026

Genetic variants in 11 regions of human genome influence the gut microbiome

In two new studies on 28,000 individuals, researchers are able to show that genetic variants in 11 regions of the human genome have a clear influence on which bacteria are in the gut and what they do there.

13 Feb 2026

Distinct microbial signature identified in pediatric Crohn's disease

NYU researchers have found a "microbial signature" of pediatric Crohn's disease that differs from the makeup of gut bacteria in children with other gastrointestinal conditions, with Crohn's patients harboring more pro-inflammatory bacteria and less protective bacteria.

12 Feb 2026

Solvent-free method improves drug solubility using mesoporous silica

A large share of medicines developed today may never reach patients for a surprisingly simple reason: they cannot dissolve well enough in water.

31 Jan 2026

Bacterial infections in patients with liver cirrhosis show rising prevalence and high mortality

Bacterial infections (BIs) are common and severe complications in patients with liver cirrhosis, but global data are limited. Here, we aimed to evaluate the global prevalence, temporal changes, and associated mortality risk of BIs in liver cirrhosis.

23 Jan 2026

Dietary protein reshapes how cholera bacteria colonize the gut

Researchers investigate the role of dietary components and the gut microbiota in cholera.

13 Jan 2026

Blood test opens the doors to early diagnosis and prevention of Crohn's disease

Sinai Health researchers have shown a blood test that can predict Crohn's disease years before symptoms appear, opening the doors to early diagnosis and potentially prevention.

12 Jan 2026

DNA analysis of colorectal polyps improves diagnosis and treatment

In about 5–10% of colorectal cancer patients, hereditary factors play a role, with higher percentages among younger patients.

12 Jan 2026

A pill that confirms you actually swallowed your medicine

SAFARI capsule technology offers a novel solution for medication adherence, using a dissolvable Faraday cage to verify ingestion without batteries or waste.

12 Jan 2026

Bowel preparation for colonoscopies may temporarily alter gut balance, preclinical study suggests

New preclinical research suggests that bowel preparation procedures for colonoscopies may temporarily alter gut balance, culminating in unappreciated effects in patients with compromised gastrointestinal health.

8 Jan 2026

Exposure to micro- and nanoplastics linked to rising number of people with chronic IBD

A research team led by the Medical University of Vienna and the University of Vienna has investigated a possible link between the rising number of people with chronic inflammatory bowel disease and the increasing exposure to micro- and nanoplastics (MNPs).

8 Jan 2026

The gut is not just digestive and new evidence shows it actively controls brain function

This comprehensive review synthesizes a decade of human and animal research to explain how the gut and brain communicate through hormonal, neural, immune, and microbial pathways. It highlights how disruptions in these pathways contribute to gastrointestinal, metabolic, and neurological disorders, and how modern therapies are beginning to exploit gut–brain signaling for clinical benefit.

6 Jan 2026

Fear strongly influences pain perception in inflammatory bowel disease patients

Pain perception in affected individuals is more strongly influenced by learned fear than in healthy individuals. Changes along the gut-brain axis related to chronic inflammation may explain this.

12 Dec 2025

Study reveals how Ebola and Marburg viruses damage the human gut

Ebola (EBOV) and Marburg virus (MARV) are highly lethal viruses that cause severe disease in infected patients by extensively damaging the body.

11 Dec 2025

Gut microbe metabolite TMA improves blood sugar by shutting down a key inflammatory switch

Researchers identified trimethylamine (TMA) as a gut microbe–derived metabolite that directly inhibits IRAK4 to reduce metabolic inflammation and improve glycaemic control in high-fat-diet-fed mice. Choline-driven increases in TMA production replicated these benefits, revealing a host–microbe signaling axis with therapeutic potential for obesity-associated insulin resistance.

9 Dec 2025

Industrial and farm chemicals quietly alter the balance of gut microbes

This study systematically screened over 1,000 agricultural and industrial chemicals and found that many can inhibit human gut bacteria in vitro. Beyond antimicrobial effects, these chemicals act as selective pressures that can reshape microbial competition, tolerance mechanisms, and metabolic pathways.

8 Dec 2025

New review illuminates the intricate connections between gut microbiota and sleep regulation

A comprehensive review published today in Brain Medicine illuminates the intricate connections between gut microbiota and sleep regulation, establishing the microbiota-gut-brain axis as a critical pathway in understanding and potentially treating sleep disorders.

4 Nov 2025