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Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinson's symptoms New evidence indicates that the loss of two types of brain cells--not just one as previously thought--may trigger the onset of symptoms associated with Parkinson's disease. view more (2007-08-14)
What emotional memories are made of Both extensive psychological research and personal experiences confirm that events that happen during heightened states of emotion such as fear, anger and joy are far more memorable than less dramatic occurrences. view more (2007-10-05)
Univ. of Chicago scientists find potential cause of breathing problems in Rett Syndrome children A multi-institutional team, led by University of Chicago researchers, has taken a crucial step toward understanding and treating Rett syndrome (RS), a rare and often-misdiagnosed neurodevelopmental disorder that affects 1 in 10,000 children, mostly females. view more (2005-12-14)
Common PTSD drug is no more effective than placebo Guanfacine, a medication commonly prescribed to alleviate symptoms of post-traumatic stress disorder, is no more effective than a placebo, according to a study led by researchers at the San Francisco VA Medical Center. view more (2006-12-04)
Study reveals how ADHD drugs work in brain Although millions depend on medications such as Ritalin to quell symptoms of attention deficit hyperactivity disorder (ADHD), scientists have struggled to pinpoint how the drugs work in the brain. view more (2006-06-26)
Ritalin packs punch by elevating norepinephrine, suppressing nerve signal transmissions Methylphenidate (Ritalin) elevates norepinephrine levels in the brains of rats to help focus attention while suppressing nerve signal transmissions in the sensory pathways to make it easier to block out extraneous stimuli, a Philadelphia research team has found. view more (2006-05-30)
St. John's Wort relieves bladder pain in animal models St. John's Wort, an herbal supplement used for centuries, may be effective in relieving pain that occurs in hypersensitive bladder disorders such as interstitial cystitis (IC), according to animal model study results presented today at the annual meeting of the American Urological Association. view more (2006-05-24)
Effectiveness of certain antidepressants may be influenced by gene variations of individuals Whether specific types of antidepressants are effective for patients with late-life major depression may depend if they have certain genetic variations. view more (2006-10-04)
Brain networks strengthened by closing ion channels Yale School of Medicine and University of Crete School of Medicine researchers report in Cell April 20 the first evidence of a molecular mechanism that dynamically alters the strength of higher brain network connections. view more (2007-04-23)
Study may explain why exercise helps heart failure patients Aerobic training is associated with a reversal of abnormal hormonal patterns that underlie many of the debilitating symptoms of heart failure. view more (2006-04-28)
Drug cuts sleep apnea in heart failure patients Since sleep apnea is associated with heart failure, patients who take a single dose of acetazolamide-a mild diuretic and respiratory stimulant-before going to bed exhibit less sleep apnea, improved blood oxygen levels and fewer daytime symptoms of sleepiness. view more (2006-01-16)
New protein synthesis not essential to memory formation New research from the University of Illinois challenges the premise that the brain must build new proteins in response to an experience for that experience to be recorded in long-term memory. view more (2007-07-27)
HHMI Undergraduate Researcher Turns Up the Heat on Hibernation If doctors could put people in hibernation and pull them out at will, scientists think they could minimize damage from strokes, help recipients' bodies accept transplanted organs, perhaps even enable astronauts to travel in suspended animation until reaching distant destinations. view more (2006-02-01)
Bacteria, beware: New finding about E coli could block infections, lead to better treatments A newly discovered receptor in a strain of Escherichia coli can be blocked to avert infection, a finding that might aid in developing better therapies to treat bacterial infections resulting in food poisoning, diarrhea or plague. view more (2006-06-27)
Pular antidepressants boost brain growth, Hopkins scientists report The beneficial effects of a widely used class of antidepressants might be the result of increased nerve-fiber growth in key parts of the brain, according to a Johns Hopkins study being published in the January 2006 issue of the Journal of Neurochemistry. view more (2005-12-20)
Alcoholism, smoking and genetics among Plains American Indians Alcoholism and smoking have a high rate of co-occurrence in the general population. Yet little is known about the co-morbidity of alcoholism and smoking among American Indians. view more (2006-02-23)
Study finds drug helps PTSD nightmares A generic drug already used by millions of Americans for high blood pressure and prostate problems has been found to improve sleep and lessen trauma nightmares in veterans with posttraumatic stress disorder (PTSD). view more (2007-04-12)
Sunlight and serotonin underlie seasonal mood disorders Authors of a research letter in this week's issue of THE LANCET provide further evidence that the effect of sunlight on neurotransmitters in the brain plays a significant role in seasonal mood disorders. The success of phototherapy (ultraviolet light therapy to stimulate brain neurotransmitter... view more (2002-11-29)
Early Promise For Stroke Patients Given A preliminary study published in this week’s issue of THE LANCET suggests that the neurotransmitter precursor levodopa used in combination with physiotherapy could improve motor recovery for patients after stroke. Hemiplegia (paralysis to one side of the body) causes functional disability... view more (2001-09-05)
Protein Plays Critical Role in Heart Failure in Both the Heart and Adrenal Gland A protein that plays an important regulatory role in heart failure in the heart also exerts powerful effects on the adrenal gland, Jefferson Medical College researchers have found. view more (2005-11-16)
Comparison of venlafaxine and SSRIs in the treatment of depression There are numerous antidepressant medications currently on the market, but sadly, many patients still experience the debilitating symptoms of depression even with treatment. view more (2008-02-22)
Voluntary exercise does not appear to alleviate anxiety and depression Voluntary physical activity does not appear to cause a reduction in anxiety and depression, but exercise and mood may be associated through a common genetic factor, according to a report in the August issue of Archives of General Psychiatry, one of the JAMA/Archives journals. view more (2008-08-05)
Septic survival While survival rates for sepsis have increased over the past two decades, children under four and those in adolescence remain highly susceptible to the condition. view more (2007-10-18)
Research links 'ecstasy' to survival of key movement-related cells in brain New research from the University of Cincinnati (UC) suggests that the widely abused club drug "ecstasy," or MDMA, can increase the survival of dopamine cells in the brain during fetal development. view more (2006-10-19)
UGA study finds that regular exercise plays a consistent and significant role in reducing fatigue, increasing energy Forget so-called energy drinks. A new analysis by University of Georgia researchers finds overwhelming evidence that regular exercise plays a significant role in increasing energy levels and reducing fatigue. view more (2006-11-02)
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