Malaria-carrying mosquitos appear to be manipulated by the parasites they carry, but this manipulation may simply be part of the mosquitos' immune response, according to Penn State entomologists.
20 hours ago
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Mapping all of the chemical, or epigenetic, changes to chromosomes that affect which genes are turned on or off—and thus determine the fate of genomically identical cells in the body—usually requires ...
May 22, 2013
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When infections occur in the body, stem cells in the blood often jump into action by multiplying and differentiating into mature immune cells that can fight off illness. But repeated infections and inflammation ...
May 21, 2013
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A cocktail of non-pathogenic bacteria naturally occurring in the digestive tract of healthy humans can protect against a potentially lethal E. coli infection in animal models according to research presented today at the 11 ...
May 20, 2013
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(Phys.org) —Researchers have made a significant first step with newly engineered biomaterials for cell transplantation that could help lead to a possible cure for Type 1 diabetes, which affects about 3 ...
May 09, 2013
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Researchers at Washington University School of Medicine in St. Louis have discovered why breast cancer patients with dense breasts are more likely than others to develop aggressive tumors that spread. The ...
May 05, 2013
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Whitehead Institute Founding Member Rudolf Jaenisch, who helped transform the study of genetics by creating the first transgenic mouse in 1974, is again revolutionizing how genetically altered animal models are created and ...
May 02, 2013
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To obtain very-high-resolution 3D images of the cerebral vascular system, a dye is used that fluoresces in the near infrared and can pass through the skin. The Lem-PHEA chromophore, a new product outclassing ...
May 02, 2013
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A long-forgotten candidate for antiviral therapy is undergoing a renaissance: Since the 1970s, the small molecule CMA has been considered a potent agent against viral infections, yet it was never approved ...
Apr 19, 2013
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Some 50 years have passed since scientists first proposed the so-called 'inside–outside model' of development, which holds that the inner cells of the early embryo eventually form all the definitive structures ...
Apr 10, 2013
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For the first time, researchers at the University of North Carolina at Chapel Hill have isolated adult stem cells from human intestinal tissue.
Apr 04, 2013
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Like humans, mice can become infected with Borrelia. However, not all mice that come into contact with these bacteria contract the dreaded Lyme disease: Animals with a particular gene variant are immune to ...
Apr 04, 2013
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What genes are responsible for the development of breast cancer? What are the brain cell mutations that lead to the onset of Alzheimer's? To find new therapies, scientists have to understand how diseases ...
Apr 02, 2013
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Mate choice is a key factor in the evolution of new animal species. The choice of a specific mate can decisively influence the evolutionary development of a species. In mice, the attractiveness of a potential ...
Mar 28, 2013
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Scientists have identified two new species of mouse lemur, the saucer-eyed, teacup-sized primates native to the African island of Madagascar.
Mar 26, 2013
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