Category Health/Medical

Loss of microbiota alters the profile of cells that protect the intestinal wall, experiments reveal

In red, intestinal wall cells producing less mucus (in green) in the large intestine of animals whose microbiota was depleted by antibiotics (right). On the left, the intestinal wall of animals that maintained an intact bacterial population produces more mucus (image: Vinicius Dias Nirello/IB-UNICAMP)

A research team led by scientists from the State University of Campinas (UNICAMP) in São Paulo, Brazil, has made significant progress in understanding the relationship between gut microbiota and intestinal cells. The study, published in the journal Gut Microbes, showed how microbiota and the compounds it produces, such as butyrate, influence the functioning of cells that line the large intestine...

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Body-focused mind-wandering associated with better mental health outcomes, finds new study

Body-focused mind wandering associated with better mental health outcomes, finds new study
Distinct brain connectivity pattern associated with mind-wandering that is grounded in bodily sensations and feelings. Credit: Proceedings of the National Academy of Sciences (2026). DOI: 10.1073/pnas.2520822123

Most of us have experienced that when our body is still and resting, the mind doesn’t stop. Instead, it takes off on its own journey of generating thoughts about our past, our plans, and the people around us, a process known as mind-wandering. While researchers have learned a lot about these kinds of thoughts, there aren’t many studies that explore how often our attention turns inward, toward sensations in our bodies, such as our breathing, heartbeat, or physical feelings.

This lesser-known side of our inner experience, called body-wandering, is what a recent study by a br...

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Detecting multiple cancers and other diseases from a single blood sample

Bloodtest
The new method, called MethylScan, works by analyzing cell-free DNA (cfDNA), tiny fragments of genetic material released into the blood when cells die.

UCLA scientists have developed a simple and cost-effective blood test that, in early studies, shows promise in detecting multiple cancers, various liver conditions and organ abnormalities simultaneously by analyzing DNA fragments circulating in the bloodstream. The test, described in the journal Proceedings of the National Academy of Sciences, could offer a powerful and more affordable approach to early disease detection and comprehensive health monitoring.

“Early detection is crucial,” said Dr...

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Biomarker test may improve risk assessment for HPV-related throat cancer

Dr Catherine Haring with a HPV biomarker test sample

Researchers at The Ohio State University Comprehensive Cancer Center—Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC—James) are advancing the understanding of a promising blood test that could personalize treatment and surveillance for patients with human papillomavirus (HPV)-associated throat cancer. The research, published in JAMA Otolaryngology—Head and Neck Surgery, explores how a blood-based test, circulating tumor HPV DNA (ctDNA), changes before and after surgery. The study explores how tumor biology and patient factors influence ctDNA levels. The findings provide important new insight into how this ctDNA test can be used along with pathology reports to improve risk assessment and personalize treatment plans.

“We know that more than 90% ...

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