Among patients who experienced an ischemic stroke, systolic blood pressure levels of less than 120 mm Hg, or higher than 140 mm Hg, were associated with an increased risk of subsequent stroke, according to a new study.

Like a bridge that spans a river to connect two major metropolises, the corpus callosum is the main conduit for information flowing between the left and right hemispheres of our brains. Now, neuroscientists have found that people who are born without that link -- a condition called agenesis of the ...

People with prehypertension have a 55 percent higher risk of experiencing a future stroke than people without prehypertension, report researchers in a new meta-analysis of scientific literature.

Brain tumor specimens taken from neurosurgery cases have given scientists a new window on the transformation that occurs as healthy brain cells begin to form tumors.

The first large-scale analysis of life expectancy outcomes in Africa for HIV patients receiving combination antiretroviral therapy (cART) shows that such patients can expect to live a near normal lifespan. The study also shows significant variance between patient subgroups.

Researchers have found that a type of normal stem cell fuels ovarian cancer by encouraging cancer stem cells to grow.

Whether patients with Type 2 diabetes mellitus benefit from attempts to lower their blood glucose levels to near-normal levels through treatment ("intensive blood glucose control") remains an unanswered question. The studies currently available provide indications of a benefit but also of potential harm, researchers say.

A team of researchers — led by Pierre Gressens, at Inserm U676, Paris, France, and Vincent Lelièvre, at CNRS UPR-3212, Strasbourg, France — has identified a signaling pathway key for normal brain development in the mouse. Of paramount importance, the data generated suggest that environmental factors, including maternal ones, can ...

New research has identified a signaling pathway key for normal brain development in mice. Of paramount importance, the data generated suggest that environmental factors, including maternal ones, can influence the final size of the brain.

A large, national multicenter study of thousands of children taken to emergency departments with minor blunt head trauma has found that most of those with normal computed tomography scans do not require hospitalization for further observation.

Researchers have identified a new pathway that sets the clock for programmed aging in normal cells. The study provides insights about the interaction between a toxic protein called progerin and telomeres, which cap the ends of chromosomes like aglets, the plastic tips that bind the ends of shoelaces.

Gene expression is the process of converting the genetic information encoded in DNA into a final gene product such as a protein or any of several types of RNA. Scientists have long thought that the gene programs regulated by different physiological processes throughout the body are robustly pre-determined and relatively ...