New Treatment Reverses Alzheimer’s Disease Signs, Improves Memory Function in Preclinical Study

A “chaperone” molecule that slows the formation of certain proteins reversed disease signs, including memory impairment, in a mouse model of Alzheimer’s disease, according to a study from researchers at the Perelman School of Medicine at the University of Pennsylvania.

In the study, published in Aging Biology, researchers examined the effects of a compound called 4-phenylbutyrate (PBA), a fatty-acid molecule known to work as a “chemical chaperone” that inhibits protein accumulation. In mice that model Alzheimer’s disease, injections of PBA helped to restore signs of normal proteostasis (the protein regulation process) in the animals’ brains while also dramatically improving their performance on a standard memory test, even when administered late in the disease course.

“By genera...

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Adding a Small Amount of Solid Carbon to Copper Boosts its Conductivity

Keerti Kappagantula and her colleagues developed highly conductive copper wire in bulk, as shown here. (Photo by Andrea Starr | Pacific Northwest National Laboratory

A common carbon compound is enabling remarkable performance enhancements when mixed in just the right proportion with copper to make electrical wires. It’s a phenomenon that defies conventional wisdom about how metals conduct electricity.

The findings, reported in the journal Materials & Design, could lead to more efficient electricity distribution to homes and businesses, as well as more efficient motors to power electric vehicles and industrial equipment. The team has applied for a patent for the work, which was supported by the Department of Energy (DOE) Advanced Materials and Manufacturing Technologies Office.

Ma...

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Research Charts Stellar Birthplaces in the Whirlpool Galaxy for the first time

Stellar Birthplaces in the Whirlpool Galaxy
This illustration depicts the distribution of diazenylium molecule radiation (false colors) in the Whirlpool Galaxy, compared with an optical image. The reddish areas in the photograph represent luminous gas nebulae containing hot, massive stars traversing dark zones of gas and dust in the spiral arms. The presence of diazenylium in these dark regions suggests particularly cold and dense gas clouds. Credit: Thomas Müller (HdA/MPIA), S. Stuber et al. (MPIA), NASA, ESA, S. Beckwith (STScI) und das Hubble Heritage Team (STScI/AURA)

An international research team led by the Max Planck Institute for Astronomy (MPIA) and involving the University of Bonn has mapped the cold, dense gas of future star nurseries in one of our neighboring galaxies with an unprecedented degree of detail...

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Sinai Health study identifies new concepts for GLP-1 action in the brain, the 2023 Science magazine breakthrough of the year

A woman stands facing the camera smiling. She is in a therapy gym in a hospital and there are  dumbells and other equipment in the background

Researcher Dr. Daniel Drucker has much to be proud of, as the GLP-1-based diabetes drugs hailing from his early research are named the 2023 breakthrough of the year by the Science Magazine. Not only have millions of people with type 2 diabetes benefitted from GLP-1 agonists, but the drugs also produced wide-ranging health benefits beyond weight loss in two recent patient trials.

For years, GLP-1 agonists have been known to have a fortuitous side effect of improving metabolic health, but how this is regulated in the body remains unclear. Now Dr. Drucker, who has dedicated his life’s work to understanding how these drugs work, has a new paper that begins to unravel the mystery with a novel finding—it all starts in the brain.

His team at the Lunenfeld-Tanenbaum Research Institute...

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