Category Biology/Biotechnology

Novel Drug makes Mice Skinny even on Sugary, Fatty Diet

Mitochondria in a single heart cell. Mitochondria highlighted in red were exposed to ultraviolet light. Credit: National Heart, Lung and Blood Institute, National Institutes of Health

Researchers from The University of Texas Health Science Center at San Antonio (UT Health San Antonio) have developed a small-molecule drug that prevents weight gain and adverse liver changes in mice fed a high-sugar, high-fat Western diet throughout life.

“When we give this drug to the mice for a short time, they start losing weight. They all become slim,” said Madesh Muniswamy, Ph.D., professor of medicine in the health science center’s Joe R. and Teresa Lozano Long School of Medicine.

Findings by the collaborators, also from the University of Pennsylvania and Cornell University, were published Feb...

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New Intracellular ‘Smoke Detector’ discovered

Human skin cells with "healthy" mitochondria (light blue):
Human skin cells with “healthy” mitochondria (light blue): – The NLRP10 “smoke detector” (yellow-green) is distributed over the entire contents of the cell, apart from the nucleus (blue-violet).© Image: Kim S. Robinson/Skin Research Institute Singapore

Researchers at the Universities of Bonn and Singapore have discovered a new intracellular “smoke detector.” The sensor warns of damage to the mitochondria. If it does not function properly, chronic skin diseases can result. The sensor may also be important for unimpaired heart and bowel function. The results have now been published in the journal Nature Immunology.

Every cell in the body has numerous sensors that monitor its function...

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UW Scientists use Tardigrade Proteins for Human Health breakthrough

man and woman working with lab equipment
UW student Maxwell Packebush, of Littleton, Colo., works with Silvia Sanchez-Martinez, a senior research scientist, to purify one of the tardigrade proteins used in a study showing that the proteins can be used to stabilize an important pharmaceutical for people with hemophilia and other conditions without the need for refrigeration. (Thomas Boothby Photo)

University of Wyoming researchers’ study of how microscopic creatures called tardigrades survive extreme conditions has led to a major breakthrough that could eventually make life-saving treatments available to people where refrigeration is not possible.

Thomas Boothby, an assistant professor of molecular biology, and colleagues have shown that natural and engineered versions of tardigrade proteins can be used to stabilize an impo...

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Stress-induced depression
Credit: Getty Images

In experiments with mice and humans, a team led by Johns Hopkins Medicine researchers says it has identified a particular intestinal immune cell that impacts the gut microbiome, which in turn may affect brain functions linked to stress-induced disorders such as depression. Targeting changes mediated by these immune cells in the gut, with drugs or other therapies, could potentially bring about new ways to treat depression.

The findings of the study were published March 20, 2023 in the journal Nature Immunology.

“The results of our study highlight the previously unrecognized role of intestinal gamma delta T cells (γδ T cells) in modifying psychological stress responses, and the importance of a protein receptor known as dectin-1, found on the surface of immune c...

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