Putting bacteria on birth control could stop the spread of drug-resistant microbes, and researchers at the University of North Carolina at Chapel Hill have found a way to do just that.
Though delays in the diagnosis of cancer in children are short and attributable to clinical presentation and healthcare system complexity, the impact of such delays on prognosis remains unclear, according to a new study.
Scientists have discovered that adult neural stem cells, which exist in the brain throughout life, are not a single, homogeneous group. Instead, they are a diverse group of cells, each capable of giving rise to specific types of neurons.
A team of international researchers has collected the oldest ever recovered DNA samples and used them to show that Greenland was much warmer at some point during the last Ice Age than most people have believed.
Scientists’ hunt for the cause of depression has implicated so many suspects and found so many treatments with different mechanisms that the condition remains an enigma. Now researchers at the Stanford University School of Medicine have identified one unifying principle that could explain how a range of causes and treatments for depression converge.
Autophagy, a normal process by which cells eat their own proteins to provide needed resources to the body in times of stress, may paradoxically cause harm to hearts already weakened by disease, researchers from UT Southwestern Medical Center have found.
In what they call a “stunning research advance,” investigators at Georgetown University Medical Center have been able to use simple, nontoxic chemical injections to add and remove fat in targeted areas on the bodies of laboratory animals. They say the discovery, published online in Nature Medicine on July 1, could revolutionize human cosmetic and reconstructive plastic surgery and treatment of diseases associated with human obesity.
By using a new kind of genomic technology, a new study unveils a special code — not within DNA, but within the so-called “chromatin” proteins surrounding it — that could unlock the mysterious developmental choices made by mammalian cells, allowing them to assume roles as diverse as liver cells and neurons.
Scientists have discovered a new type of mouse embryonic stem cell that is the closest counterpart yet to human embryonic stem cells, the National Institutes of Health announced today. The cells are expected to serve as an improved model for human ES cells in studies of regeneration, disease pathology and basic stem cell biology.
Human sperm cells travel up to 6 meters in their transit from testes to penis, and most of that journey occurs in the epididymis, a tightly coiled tube that primes the cells for their ultimate task: fertilization. In a PNAS paper released this week, researchers report that they have discovered a gene — and related mechanism — essential to the embryonic development of the epididymis.