When injected into mice immediately following a traumatic event, a new drug prevents the animals from developing memory problems and increased anxiety that are indicative of post-traumatic stress disorder (PTSD).
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(Medical Xpress)—Waging an immunological war against a pathogen is not the body's only way to survive an infection. Sometimes tolerance, or learning to live with an invader, can be just as important. In tolerance the body ...
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(Medical Xpress)—Scientists have discovered a hormone that causes the body's insulin-producing factories, beta cells, to churn out more of themselves. Having enough insulin is critical to regulating the amount of sugar ...
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(Medical Xpress)—Free-floating pieces of DNA in a cell's watery interior can mean bad things: invading viruses, bacteria, or parasites, ruptured cellular membranes, or disease. Genetic material is meant to be contained ...
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(Medical Xpress)—A few years ago, scientists discovered an unexpected layer of information woven into the genetic code – a nucleotide called 5-hydroxymethylcytosine, or 5hmC. Its meaning was unknown at the time, but a ...
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(Medical Xpress)—The human brain likes to make predictions about how the world works. Imagine, for example, that you move to a new town. At first, you don't know where to go for dinner. But after weeks of trying different ...
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(Medical Xpress) -- Howard Hughes Medical Institute investigator Friedhelm Hildebrandt has discovered that genetic mutations that impair cells’ ability to repair damaged DNA can cause chronic kidney disease.
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The 20 proteins in the Wnt family are some of the most important proteins in controlling how an organism develops and grows, but for 30 years scientists have not known what these vital proteins actually look ...
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(Medical Xpress) -- Antidepressant medications such as Prozac have helped improve mood and lessen anxiety in millions of people with major depression. But scientists know surprisingly little about how these drugs work.
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(Medical Xpress) -- When an animal is born, its early experiences help map out the still-forming connections in its brain. As neurons in sensory areas of the brain fire in response to sights, smells, and sounds, ...
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(Medical Xpress) -- In 1883, Swedish chemist Olof Hammarsten discovered that milk proteins called caseins contain not just the known building blocks of proteins, but also the chemical phosphate. It was the first hint that ...
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In a mouse model of Alzheimer's disease, memory problems stem from an overactive enzyme that shuts off genes related to neuron communication, a new study says.
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A new drug, MDV3100, is improving the survival rate in men with advanced prostate cancer, results of a large, phase III clinical trial show. The drug is designed to block a type of cellular receptor that drives progression ...
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Everyone knows exercise is good for you. We’re told time spent on the treadmill can reduce our risk of diabetes, cancer, and cardiovascular disorders. But exactly how exercise provides this protection ...
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(Medical Xpress) -- After a challenging two-decade hunt, scientists have pinpointed the gene responsible for a rare disease that causes seizures in infancy and sudden, uncontrollable movements in adolescence and early adulthood.
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