NEW YORK (Jan. 11, 2010) -- New research has shown that reducing the dosage of dopamine agonist (DA) drugs, a mainstay treatment for Parkinson's disease (PD), sometimes causes acute withdrawal symptoms similar to those reported by cocaine addicts -- including anxiety, panic attacks, depression, sweating, nausea, generalized pain, fatigue, dizziness and drug cravings. These symptoms can be severe, and are not alleviated by other PD medications.
Brain
Two brain areas fail to connect when children with attention deficit hyperactivity disorder attempt a task that measures attention, according to researchers at the UC Davis Center for Mind and Brain and M.I.N.D. Institute.
The widespread view of Neanderthals as cognitively inferior to early modern humans is challenged by new research from the University of Bristol published today in Proceedings of the National Academy of Sciences.
Waltham, MA—If you don't have a college degree, you're at greater risk of developing memory problems or even Alzheimer's. Education plays a key role in lifelong memory performance and risk for dementia, and it's well documented that those with a college degree possess a cognitive advantage over their less educated counterparts in middle and old age.
COLUMBUS, Ohio – Regularly practicing yoga exercises may lower a number of compounds in the blood and reduce the level of inflammation that normally rises because of both normal aging and stress, a new study has shown.
The study, done by Ohio State University researchers and just reported in the journal Psychosomatic Medicine, showed that women who routinely practiced yoga had lower amounts of the cytokine interleukin-6 (IL-6) in their blood.
COLUMBUS, Ohio – Blocking the function of an enzyme in the brain with a specific kind of vitamin E can prevent nerve cells from dying after a stroke, new research suggests.
In a study using mouse brain cells, scientists found that the tocotrienol form of vitamin E, an alternative to the popular drugstore supplement, stopped the enzyme from releasing fatty acids that eventually kill neurons.
Amsterdam, January 11, 2010 – Current Alzheimer's disease (AD) research indicates that accumulation of amyloid-beta (Aβ) protein plaques in the brain is central to the development of AD. Unfortunately, presence of these plaques is typically confirmed only at autopsy. In a special issue of the journal Behavioural Neurology, researchers review the evidence that Positron Emission Tomography (PET) can image these plaques during life. This exciting new technique provides researchers with an opportunity to test the amyloid hypothesis as it occurs in living patients.
New research from scientists at Queen Mary, University of London shows how the most common type of children's brain cancer can arise from stem cells.
Scientists know relatively little about medulloblastomas or why some cases respond better to treatments than others.
The new research, published today in Oncogene*, shows that medulloblastomas can grow from a type of brain stem cell and that these cancers are a distinct form of the disease which may require a completely different approach to treatment.
BOSTON – Ask anyone who suffers from migraine headaches what they do when they're having an attack, and you're likely to hear "go into a dark room." And although it's long been known that light makes migraines worse, the reason why has been unclear.
Studying a rare disorder known as tuberous sclerosis complex (TSC), researchers at Children's Hospital Boston add to a growing body of evidence suggesting that autism spectrum disorders, which affect 25 to 50 percent of TSC patients, result from a miswiring of connections in the developing brain, leading to improper information flow. The finding may also help explain why many people with TSC have seizures and intellectual disabilities. Findings were published online in Nature Neuroscience on January 10.
Children with autism spectrum disorders (ASDs) process sound and language a fraction of a second slower than children without ASDs, and measuring magnetic signals that mark this delay may become a standardized way to diagnose autism.
Researchers at The Children’s Hospital of Philadelphia report their findings in an online article in the journal Autism Research, published today.
A team of neurosurgeons at Heidelberg University Hospital and psychiatrists at the Central Institute of Mental Health, Mannheim have for the first time successfully treated a patient suffering from severe depression by stimulating the habenula, a tiny nerve structure in the brain. The 64-year-old woman, who had suffered from depression since age 18, could not be helped by medication or electroconvulsive therapy. Since the procedure, she is for the first time in years free of symptoms.
Neuroscientists have forged an unlikely molecular union as part of their fight against diseases of the brain and nervous system.
The team has brought together the herpes virus and a molecule known as Sleeping Beauty to improve a technology known as gene therapy, which aims to manipulate genes to correct for molecular flaws that cause disease.
Forgot where you put your car keys? Having trouble recalling your colleague's name? If so, this may be a symptom of subjective cognitive impairment (SCI), the earliest sign of cognitive decline marked by situations such as when a person recognizes they can't remember a name like they used to or where they recently placed important objects the way they used to. Studies have shown that SCI is experienced by between one-quarter and one-half of the population over the age of 65.
Despite a massive global research effort, many basics of Alzheimer's disease onset remain elusive. This has hampered development of treatments effective during the earliest stages of the disease, when prevention is most likely.
But a new discovery by University of Central Florida researchers has revealed a previously unknown mechanism that may drive the early brain function deterioration of Alzheimer's victims, thus opening a new exploratory path in the quest for an Alzheimer's cure.