Category Health/Medical

This bedtime snack swap could rewire your gut and help prevent diabetes

A small wooden bowl overflowing with pistachios and topped with sprigs of mint
Eating pistachios as a nightly snack for 12 weeks altered which bacteria lived in the digestive system of people with prediabetes, according to a new study by researchers at Penn State. Credit: Jose Calatrava Cano/Getty Images. All Rights Reserved.

Eating pistachios every night for 12 weeks altered bacteria in the gut, according to new study. A new study reveals that swapping a typical nighttime carbohydrate snack for pistachios may beneficially alter gut bacteria in people with prediabetes. Conducted by Penn State researchers, the 12-week clinical trial found that pistachio consumption increased beneficial gut microbes like Roseburia and reduced harmful ones such as Blautia hydrogenotrophica...

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Human CLOCK gene enhances brain connectivity and mental flexibility in mice, study finds

Human CLOCK gene enhances brain connectivity and mental flexibility in mice, study finds
Example images of excitatory neurons from the cerebral cortexes of humanized mice showing how the neurons from the humanized mice grew more dendrites. Credit: Dr. Yuxiang Liu

Clock genes are a set of genes known to contribute to the regulation of the human body’s internal 24-hour cycle, also known as the circadian rhythm. One of these genes is the so-called CLOCK gene, a protein that regulates the activity of other genes, contributing to recurrent patterns of sleep and wakefulness.

Past findings suggest that this gene is also expressed in the neocortex, a brain region that supports important cognitive abilities, including reasoning, decision-making and the processing of language. However, the gene’s possible contribution to these specific brain functions remains poorly understood.

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Newly discovered ‘sixth sense’ links gut microbes to the brain in real time

Sixth Sense' Links Gut Microbes to the Brain in Real Time - ScienceBlog.com

In a breakthrough that reimagines the way the gut and brain communicate, researchers have uncovered what they call a “neurobiotic sense,” a newly identified system that lets the brain respond in real time to signals from microbes living in our gut.

The new research, led by Duke University School of Medicine neuroscientists Diego Bohórquez, Ph.D., and M. Maya Kaelberer, Ph.D., published in Nature, centers on neuropods, tiny sensor cells lining the colon’s epithelium. These cells detect a common microbial protein and send rapid messages to the brain that help curb appetite.

But this is just the beginning...

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Scientists use dental floss to deliver vaccines without needles

Scientists use dental floss to deliver vaccines without needles
Coated floss enables delivery across the JE. Credit: Nature Biomedical Engineering (2025). DOI: 10.1038/s41551-025-01451-3

Flossing your teeth at least once a day is an essential part of any oral health routine. But it might also one day protect other parts of the body as scientists have created a novel, needle-free vaccine approach using a specialized type of floss.

In a study published in Nature Biomedical Engineering, researchers demonstrated that when floss laced with vaccine components, such as proteins and inactive viruses, was applied along the gum lines of mice, it triggered an immune response.

This method of vaccine delivery is effective because the areas of gum between the teeth are highly permeable, allowing them to absorb vaccine molecules easily.

Flossing mice
In...

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