Category Health/Medical

Scientists may have found the brain’s switch for chronic pain

Scientists may have found the brain’s “pain switch”—and how to turn it off. New research from the University of Colorado Boulder points to a little-known brain circuit that may determine whether short-term pain fades away or becomes a long-lasting problem. The findings suggest that this pathway plays a key role in turning temporary pain into chronic pain that can persist for months or even years.

The study, conducted in animals and published in the Journal of Neuroscience, focused on a region called the caudal granular insular cortex (CGIC). Researchers found that shutting down this circuit can both prevent chronic pain from developing and stop it after it has already begun.

“Our paper used a variety of state-of-the art methods to define the specific brain circuit crucia...

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Dietary fats shape pancreatic cancer risk via ferroptosis

For decades, the relationship between fat and cancer has been treated as a question of quantity: Eat less fat, reduce your risk of developing cancer. But new research published April 29 in Cancer Discovery shows that for pancreatic cancer, the type of fat you consume matters more than the amount.

“It’s really the type of fat that you’re consuming, not just total fat content,” says Christian Felipe Ruiz, Ph.D., an associate research scientist in YSM’s Department of Genetics and lead author of the study. “Depending on the type of fat that you consume, it can go completely different ways. We found that some fats promote cancer, as we would expect, while other fats are really good at suppressing cancer.”

One fat in particular—oleic acid, the primary fatty acid in olive oil—may be ac...

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Battery-free skin-conformal wearable system can measure electrocardiogram signals

SNU researchers develop battery-free skin-conformal wearable system
Concept of body-coupled wireless power delivery for battery-free wearables. Credit: Science Advances

A research team led by Prof. Jerald Yoo from the Department of Electrical and Computer Engineering at Seoul National University (SNU) has developed a skin-conformal wearable health care system, “SkinECG,” capable of measuring electrocardiogram (ECG) signals without a battery. By combining energy harvesting with human body–coupled power transfer, the study presents a new solution to one of the most critical challenges in wearable devices: power supply.

The findings are published in Science Advances.

Wearable health care systems are emerging as next-generation medical technologies that enable real-time monitoring of physiological signals through body-worn sensors, allowing early ...

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Scientists recruit red blood cells to deliver genetic cargo with instructions to kill cancer

red blood cells
Credit: CC0 Public Domain

Scientists have developed a way to turn the body’s own immune cells into cancer-fighting agents—without removing them from the body—by using red blood cells to deliver genetic instructions. Current CAR (chimeric antigen receptor) therapies typically involve collecting a patient’s T cells, genetically modifying them in the laboratory, and then reinfusing them in a process that can take weeks. The new strategy aims to bypass that step.

In a study published in Science Translational Medicine, researchers at Westlake Laboratory of Life Sciences and Biomedicine in Hangzhou, China, report that they used engineered erythrocytes, or red blood cells, to carry messenger RNA—mRNA—that reprograms myeloid cells into tumor-targeting cells inside the body.

“Engi...

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