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Category: biotech/medical – Page 134

Rapid lithium extraction eliminates use of acid and high heat, scientists report

Lightweight lithium metal is a heavy-hitting critical mineral, serving as the key ingredient in the rechargeable batteries that power phones, laptops, electric vehicles and more. As ubiquitous as lithium is in modern technology, extracting the metal is complex and expensive. A new method, developed by researchers at Penn State and recently granted patent rights, enables high-efficiency lithium extraction—in minutes, not hours—using low temperatures and simple water-based leaching.

“Lithium powers the technologies that define our modern lives—from smartphones to electric vehicles—and has applications in grid energy storage, ceramics, glass, lubricants, and even medical and nuclear technologies,” said Mohammad Rezaee, the Centennial Career Development Professor in Mining Engineering at Penn State, who led the team that published their approach in Chemical Engineering Journal.

“But its extraction must also be environmentally responsible. Our research shows that we can extract lithium, and other , more efficiently while drastically reducing energy use, greenhouse gas emissions and waste that’s difficult to manage or dispose of.”

Divergent actions of physiological and pathological amyloid-β on synapses in live human brain slice cultures

Understanding synapse loss in Alzheimer’s disease has been hampered by a lack of human model systems. Here, the authors show that manipulation of physiological or pathological Aβ has differing effects on synapses in live human brain slice cultures.

Can One Gram of Omega-3 Really Slow Aging? Here’s What Science Says

A new study involving over 700 older adults suggests that taking one gram of omega-3 daily may help slow biological aging, with effects visible in molecular markers known as epigenetic clocks.

When combined with vitamin D and regular exercise, the anti-aging benefits became even more pronounced, lowering the risks of frailty and cancer as well.

Omega-3 linked to slower aging in humans.

Next-gen flu vaccines use proteolysis-targeting to boost safety and cross-strain immunity in animal models

Recently, Prof. Si Longlong’s team from the Shenzhen Institutes of Advanced Technology of the Chinese Academy of Sciences constructed a library of live-attenuated influenza A vaccines that utilize diverse E3 ubiquitin ligases to degrade viral proteins and achieve virus attenuation, and developed the next-generation proteolysis-targeting (PROTAR) strategy, PROTAR 2.0.

The studies were published in Nature Microbiology and Nature Chemical Biology, respectively, and expand on the PROTAR live attenuated vaccine technology that was initially introduced by the team’s study published in Nature Biotechnology in 2022.

To prevent influenza, vaccination is widely considered as the most effective way. Currently, the majority of licensed influenza vaccines are inactivated (IIV) and cold-adapted live-attenuated influenza vaccine (CAIV). However, traditional vaccine strategies can result in the loss or incomplete matching of natural antigens from circulating influenza strains, potentially leading to reduced vaccine efficacy.

PET scans reveal early signs of Parkinson’s and Lewy body disorders

In a comprehensive Genomic Press perspective article published today, researchers from Fudan University and Shanghai University of Traditional Chinese Medicine have highlighted remarkable advances in the development of positron emission tomography (PET) tracers capable of visualizing α-synuclein aggregates in the brains of patients with Parkinson’s disease and related disorders.

The abnormal accumulation of α-synuclein protein is a defining pathological feature of several neurodegenerative conditions collectively known as synucleinopathies, including Parkinson’s disease (PD), multiple system atrophy (MSA), and dementia with Lewy bodies (DLB). Until recently, confirming the presence of these protein aggregates required post-mortem examination, severely limiting early diagnosis and treatment monitoring capabilities.

“The ability to visualize these protein aggregates in living patients represents a significant leap forward in neurodegenerative disease research,” explains Dr. Fang Xie, corresponding author and researcher at the Department of Nuclear Medicine & PET Center at Huashan Hospital, Fudan University.

Skin-based test could improve diagnosis of debilitating neurodegenerative disease

Researchers at the University Health Network (UHN) and the University of Toronto have developed a skin-based test that can detect signature features of progressive supranuclear palsy (PSP), a rare neurodegenerative disease that affects body movements, including walking, balance and swallowing.

The test, which the researchers describe in a recent issue of JAMA Neurology, could allow for more accurate and faster PSP diagnosis than current methods.

“This is important for assigning patients to the correct , but it will be even more important in the future as researchers develop targeted, precision treatments for PSP,” says Ivan Martinez-Valbuena, a scientific associate at the Rossy Progressive Supranuclear Palsy Centre at the UHN’s Krembil Brain Institute and U of T’s Tanz Centre for Research in Neurodegenerative Diseases.