SALT LAKE CITY A single organ may contain more than one type of adult stem cell a discovery that complicates prospects for using the versatile cells to replace damaged tissue as a treatment for disease, according to a new study from the laboratory of geneticist Mario Capecchi, the University of Utah's Nobel Laureate.
Scientists, reporting in the current issue of the online journal Marine Drugs, state that an increase of epileptic seizures and behavioral abnormalities in California sea lions can result from low-dose exposure to domoic acid as a fetus. The findings follow an analysis earlier this year led by Frances Gulland of the California Marine Mammal Center that showed this brain disturbance to be a newly recognized chronic disease.
London, UK: Teenagers and young adults with cancer are being failed by medical researchers who are not designing clinical trials with the 13-24 age group in mind and who are not recruiting sufficient numbers of young people to those trials that do exist, according to new figures announced today (Monday).
Amsterdam, 9 June 2008 A 115-year-old woman who remained mentally alert throughout her life had an essentially normal brain, with little or no evidence of Alzheimer's disease, according to a study in the August issue of Neurobiology of Aging (http://neurobiologyofaging.org/).
WESTCHESTER, Ill. Morningness is a predictor of better grades in college, according to a research abstract that will be presented on Monday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).
The study, authored by Kendry Clay, of the University of North Texas, focused on 824 undergraduate students who were enrolled in psychology classes. The subjects completed a health survey which included questions regarding sleep habits and aspects of daytime functioning.
WESTCHESTER, Ill. Insomnia complaints among college students are significantly associated with a decline in school performance based on self-reported grade-point average (GPA), according to a research abstract that will be presented on Monday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).
WESTCHESTER, Ill. Parental adaptation to infant sleep was poorer when infants spent any part of the night with their parents, even when parents endorsed bedsharing, according to a research abstract that will be presented on Monday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).
London, UK: Three studies to be presented at Teenage Cancer Trust's Fifth International Conference on Teenage and Young Adult Cancer Medicine today (Monday) have thrown light on the extent of delays that teenagers and young adults (TYAs) can face before being diagnosed with cancer, and on some of the reasons why this happens.
One of the great scientific challenges is to understand the design principles and origins of the human brain. New research has shed light on the evolutionary origins of the brain and how it evolved into the remarkably complex structure found in humans.
The research suggests that it is not size alone that gives more brain power, but that, during evolution, increasingly sophisticated molecular processing of nerve impulses allowed development of animals with more complex behaviours.
Researchers at the University of Iowa and the Veterans Affairs Iowa City Health Care System have uncovered a brain pathway that shuts down seizures.
The multidisciplinary team of scientists pieced together information from clinical observations made in the first half of the 20th century with knowledge from modern genetics and molecular biology to show that an acid-activated ion channel in the brain reacts to a drop in pH (increased acid) in a way that shuts down seizure activity.