Category Health/Medical

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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Six-hour ‘undo’ button: GAI-17 rewinds stroke damage and may beat Alzheimer’s

Beneficial effects of GAPDH-C152A expression and GAI-17 on acute ischemic stroke treatment in model mice
Ischemia-Reperfusion-induced GAPDH aggregates lead to cell death and paralysis, but both GAPDH-C152A expression and GAI-17 treatment can decrease the chances of post-stroke side effects.
Credit: Osaka Metropolitan University

Protein aggregation inhibitor shows lower levels of cell death and paralysis in mice with acute strokes.

Stroke kills millions, but Osaka researchers have unveiled GAI-17, a drug that halts toxic GAPDH clumping, slashes brain damage and paralysis in mice—even when given six hours post-stroke—and shows no major side effects, hinting at a single therapy that could also tackle Alzheimer’s and other tough neurological disorders.

Stroke is said to be the se...

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Surprising finding could pave way for universal cancer vaccine

An experimental mRNA vaccine has boosted the tumor-fighting effects of immunotherapy in a mouse-model study, bringing researchers one step closer to their goal of developing a universal vaccine to “wake up” the immune system against cancer.

Published in Nature Biomedical Engineering, the University of Florida study showed that like a one-two punch, pairing the test vaccine with common anticancer drugs called immune checkpoint inhibitors triggered a strong antitumor response.

A surprising element, researchers said, was that they achieved the promising results not by attacking a specific target protein expressed in the tumor, but by simply revving up the immune system—spurring it to respond as if fighting a virus...

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