Johns Hopkins scientists have discovered that the over-activation of a single protein may shut down the brain-protecting effects of a molecule and facilitate the most common form of Parkinson's disease. The finding of this mechanism could lead to important new targets for drugs already known to inhibit it, thus controlling symptoms of the disorder, which affects about 1 million older Americans.
Brain
Siblings of children with autism have more frequent language delays and other subtle characteristics of the disorder than previously understood. Girls also may be mildly affected more often than recognized in the past.
University of Alberta researcher Lori Friesen's classroom assistants are very attentive, love to listen to children read and can keep their composure in a classroom full of energetic Grade 2 students. However, her assistants are more likely to lick the students' faces than give them a gold star.
Friesen's says her work with her "literacy dogs," Tango and Sparky, in one city-area classroom yielded some highly positive successes for the children and her research.
NEW YORK, October 1, 2010--A multi-institutional team led by investigators from Memorial Sloan-Kettering Cancer Center has published a study that provides new insight into genetic changes that make some forms of glioblastoma, the most common type of primary brain cancer, more aggressive than others and explains why they may not respond to certain therapies. The research was led by senior author Eric C. Holland, MD, PhD,--an MSKCC surgeon, researcher and the Director of the Brain Tumor Center--and was published in the October 1 issue of the journal Genes & Development.
A new study, derived from novel sleep research conducted by University of California, San Diego researchers 14 years earlier, suggests that the secret to a long life may come with just enough sleep. Less than five hours a night is probably not enough; eight hours is probably too much.
New study finds groups demonstrate distinctive 'collective intelligence' when facing difficult tasks
CAMBRIDGE, Mass. -- When it comes to intelligence, the whole can indeed be greater than the sum of its parts. A new study co-authored by MIT, Carnegie Mellon University, and Union College researchers documents the existence of collective intelligence among groups of people who cooperate well, showing that such intelligence extends beyond the cognitive abilities of the groups' individual members, and that the tendency to cooperate effectively is linked to the number of women in a group.
MAYWOOD, Il. -- The latest advances in treating neurologic disorders such as stroke, headache, Parkinson's disease, epilepsy and sleep disorders are detailed in a special issue of the journal Neurologic Clinics.
Guest editor is Dr. Jose Biller, chairman of the Department of Neurology at Loyola University Chicago Stritch School of Medicine.
Philadelphia, PA, 30 September, 2010 - There is growing evidence that two neurotransmitters - dopamine and glutamate - are abnormal in people with psychotic illness, including schizophrenia. Among many other things, these chemicals play a role in cognitive functions, such as memory, learning, and problem-solving.
A new study in Biological Psychiatry is now the first to examine the relationship between these two brain chemicals by measuring both in the same individuals.
Close relatives of women diagnosed with breast cancer before the age of 35 years are at an increased risk of developing other cancers, according to a University of Melbourne study, published in the British Journal of Cancer today.
Professor John Hopper, Director of Research from the Centre for Molecular, Environmental, Genetic and Analytic Epidemiology at the University of Melbourne, Australia, a lead investigator in the study, said these are surprising and novel findings which could be pointing to the existence of a new cancer genetic syndrome.
Research published today provides the first direct evidence that attention-deficit/hyperactivity disorder (ADHD) is a genetic condition. Scientists at Cardiff University found that children with ADHD were more likely to have small segments of their DNA duplicated or missing than other children.
ANN ARBOR, Mich. — Ghanaian Obstetrics and Gynecology residents say in-country training programs contributed to their decision to remain in their home country to practice medicine, new University of Michigan research shows.
MADISON — Typically, monkeys don't know what to make of a mirror. They may ignore it or interpret their reflection as another, invading monkey, but they don't recognize the reflection as their own image. Chimpanzees and people pass this "mark" test — they obviously recognize their own reflection and make funny faces, look at a temporary mark that the scientists have placed on their face or wonder how they got so old and grey.
Administering a new form of immunotherapy to children with neuroblastoma, a nervous system cancer, increased the percentage of those who were alive and free of disease progression after two years, according to researchers at the University of California, San Diego School of Medicine and fellow institutions. The percentage rose from 46 percent for children receiving a standard therapy to 66 percent for children receiving immunotherapy plus standard therapy, according to the study published in the Sept. 30, 2010 issue of the New England Journal of Medicine.
New research provides evidence of the vicious cycle created when an obese individual overeats to compensate for reduced pleasure from food.
Obese individuals have fewer pleasure receptors and overeat to compensate, according to a study by University of Texas at Austin senior research fellow and Oregon Research Institute senior scientist Eric Stice and his colleagues published this week in The Journal of Neuroscience.