Category: Neurodegeneration/HPAN

What causes Alzheimer’s? Study puts leading theory to ‘ultimate test’

An idea that has propelled Alzheimer’s research for more than 30 years is approaching its day of reckoning. Scientists are launching a study designed to make or break the hypothesis that Alzheimer’s is caused by a sticky substance called beta-amyloid. The study will give an experimental anti-amyloid drug to people as young as 18 who […]

How do cells take out the trash?

Research uncovers how unfolded proteins are discarded, and how a perfectly good protein can wind up in the trash

High-tech imaging focuses on oxygen metabolism in newborn brain

Our brains consume huge amounts of energy and rely on oxygen supplied by blood vessels. When the brains of infants are deprived of oxygen for any reason, it can lead to brain injury that causes cerebral palsy, epilepsy or cognitive impairment. Song Hu, PhD, associate professor of biomedical engineering in the McKelvey School of Engineering […]

New center’s aim: To ID biomarkers of neurodegenerative diseases

A new center established at Washington University School of Medicine in St. Louis aims to accelerate research into biomarkers of neurodegenerative conditions such as Huntington’s and Parkinson’s diseases, amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS) and the so-called tauopathies, a group that includes Alzheimer’s disease along with rarer diseases such as frontotemporal dementia, corticobasal syndrome […]

New structure found in cells

Every cell contains millions of protein molecules. Some of them have the ability to phase-separate to form non-membrane-bound compartments, called biomolecular condensates, inside a cell. It has long been assumed that there was no further structure underlying these condensates, only solution-soluble proteins. A research group led by Rohit Pappu, PhD, the Gene K. Beare Distinguished Professor […]

Gut bacteria mine dietary fiber to release beneficial nutrients

A new study from Washington University School of Medicine in St. Louis demonstrates that certain human gut microbes can mine dietary fiber to extract nutrients that otherwise would remain inaccessible to the human body. The study, published June 27 in the journal Cell, illustrates how the fiber byproducts of food production — such as rinds, peels […]

Pappu lab untangles more IDR secrets

Intrinsically disordered regions (IDRs) of proteins, when tethered to folded domains, function either as flexible tails or as linkers between domains. Most IDRs are composed of a mixture of oppositely charged residues. Recent measurements of tethered polyampholytes have shown that arginine- and lysine-rich sequences tend to behave very differently from one another. In a paper […]

Burris Receives $150,000 Washington University School of Medicine Grant for Autophagy Research

Tom Burris, Ph.D., FAAAS, FAHA, Alumni Chair in Pharmaceutical Education and vice president for research at University of Health Sciences and Pharmacy in St. Louis, has received a $150,000 grant from the Washington University School of Medicine in St. Louis’ Philip and Sima Needleman Center for Autophagy Therapeutics and Research to support research related to […]