New insight into role of amyloid beta in Alzheimer’s disease

New insight into role of amyloid beta in Alzheimer’s disease

New Alzheimer’s disease research details a technique that speedily measures levels in the brain of a damaging protein fragment, and insight into why mutations in a specific gene increase the risk of developing the disease. Both studies, from researchers at Washington University School of Medicine in St. Louis, are available online in The Journal of Experimental Medicine.
Probing proteins’ 3-D structures suggests existing drugs may work for many cancers

Probing proteins’ 3-D structures suggests existing drugs may work for many cancers

Examining databases of proteins’ 3-D shapes, scientists at School of Medicine have identified more than 850 DNA mutations that appear to be linked to cancer. The information may expand the number of cancer patients who can benefit from existing drugs. The study, published June 13 in Nature Genetics, detailed a list of the mutations and associated drugs that may work against them.
Gut microbes’ metabolite dampens proliferation of intestinal stem cells

Gut microbes’ metabolite dampens proliferation of intestinal stem cells

New research at Washington University School of Medicine in St. Louis indicates stem cells located in “pockets” in the intestine avoid contact with a prominent metabolite produced by beneficial microbes living in the gut. That metabolite – butyrate – restricts the proliferation of stem cells, potentially hampering the intestine from repairing itself after an injury or damage.
Development of gut microbes and gut immunity linked

Development of gut microbes and gut immunity linked

Studying twins from birth through age 2, scientists at Washington University School of Medicine in St. Louis have shown that the gut’s immune system develops in sync with the gut’s tens of trillions of microbes. The findings have implications for understanding healthy growth and, potentially, the origins of various immune disorders.
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