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Tag: "disorder" at biology news

Research team identifies new Alzheimer's gene

...lems in older people. The progressive neurological disorder afflicts an estimated 5 million Americans, a numbe... either have Alzheimer’s disease or be free of the disorder at autopsy. This study resulted in a comprehensive set of high-quality data to be made publicly avai...

Longer treatment benefits sleep apnea patients

...ericans are believed to have sleep apnea, a common disorder in which the upper airway is intermittently narrowed during sleep, causing breathing to be difficult or even completely blocked. The CPAP device is worn while the patient sleeps and works by blowing just enough air into the nose to keep the patient's...

Brain holds clues to bipolar disorder

...ute of Mental Health (NIMH), suggests that bipolar disorder arises from abnormalities in neuronal plasticity c...s resulted in many of the core symptoms of bipolar disorder and explained many other observations about the disease. The findings suggest a new avenue for treat...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...to develop LCA, one from each parent. However, the disorder is more common within populations where marriage to first or second cousins is common, such as the Pakistani community. "If a parent is found to carry a mutation in the LCA5 gene, the risk of blindness in their children and grandchildren is still ...

Runners -- Let thirst be your guide

...uding an international consensus statement on this disorder published in the Clinical Journal of Sports Medici...ted the scientific community on the causes of this disorder in the May issue of Sports Medicine. Verbalis says the goal of the group is to understand the b...

Researchers identify protein pathway involved in Parkinson disease development

...y) journal. Parkinson disease is a degenerative disorder of the central nervous system resulting from the loss of neurons in the brain that produce dopamine. This lowering of dopamine leads to decreased stimulation of the brain's motor cortex. Although scientists have not known the exact cause of the los...

Extra-aggressive form of idiopathic pulmonary fibrosis identified

...y fibrosis (IPF) is a chronic and progressive lung disorder from which most patients die within 5 years after diagnosis. The disease is characterized by the insidious onset of dyspnea or cough and usually evolves slowly. Now, Selman and coworkers present in an article published in the online, open-access...

How brain pacemakers erase diseased messages

...ment of epilepsy, depression, obsessive-compulsive disorder and pain, according to Grill. The complexity of the brain -- in which nerves project in all directions and connect with one another to form multiple, looping networks -- makes studying how deep brain stimulation works a challenge, Grill said. G...

An 'elegant' idea proves its worth 25 years later

...College of Wisconsin looked back at 299 urea cycle disorder patients with a total of 1,181 hyperammonemia "episodes" from 118 hospitals around the United States from August 1980 until March 2005. The regimen consisted of high-dose intravenous sodium phenylacetate and sodium benzoate for two hours followed...

Gene malfunctions cause schizophrenia, depression symptoms in mice

...growing recognition that schizophrenia and bipolar disorder share, at least in part, common genetic etiologies and thus underlying molecular mechanisms." ...

Chronic fatigue syndrome impairs a person's slow wave activity during sleep

...ance. Persons who think they might have a sleep disorder are urged to consult with their primary care physician, who will refer them to a sleep specialist....

Traumas like Sept. 11 make brains more reactive to fear

...ave such mental disorders as post-traumatic stress disorder (PTSD) or major depression. One of the first studies to look at the effects of trauma on the brains of healthy people, it is published in the May issue of the journal Emotion. "These people appear to be doing okay, but they may, indeed, be having m...

Genetic roots of bipolar disorder revealed by first genome-wide study of illness

The likelihood of developing bipolar disorder depends in part on the combined, small effects of...s found in the scans of 413 adults who had bipolar disorder with variations found in the scans of 563 healthy adults. By pooling the genetic material of the...

Sleep quantity affects morning testosterone levels in older men

...rmance. Those who think they might have a sleep disorder are urged to discuss their problem with their primary care physician, who will issue a referral to a sleep specialist. ...

UCLA study uncovers clues for why Graves' disease attacks the eyes

...udy may deepen understanding of how the autoimmune disorder damages the body and offer a new target for treati... is nine times more common in women than men. The disorder most often strikes during the childbearing years, and runs an average course of one to two years. N...

NIH researchers discover protein that appears to regulate bone mass loss, the cause of osteoporosis

... based on a study of 14 people with a rare genetic disorder called X-linked Hyper IgM Syndrome. X-linked Hyper IgM Syndrome strikes about one in a million American--all males--and is caused by a deficiency in an important immune system protein known as CD40 ligand. This protein is crucial for the developmen...

Enhancing activity of marijuana-like chemicals in brain helps treat

...ding Parkinson's, depression, obsessive-compulsive disorder and addiction. The activity of neurons in the striatum relies on the chemical dopamine. A shortage of dopamine in the striatum can lead to Parkinson's disease, in which a person loses the ability to execute smooth motions, progressing to muscle...

Mimicking how the brain recognizes street scenes

...can break it to mimic a brain disorder." One brain disorder that involves distortions in visual perception is schizophrenia, but nobody understands the neurobiological basis for those distortions. "The versatility of the biological model turns computer vision from a trick into something really useful," sa...

Lithium builds gray matter in bipolar brains, UCLA study shows

...tients on lithium with those of people without the disorder and those of bipolar patients not on lithium, they...s. The neurobiological underpinnings of bipolar disorder ?an illness marked by a roller coaster of emotions between mania and depression ?are not well unders...

Anxiety disorders surprisingly common yet often untreated

...ty disorder, panic disorder, post traumatic stress disorder or social anxiety disorder. The new study, which looked at 965 patients in 15 primary care clinics, found anxiety to be as prevalent as depression, and much more common than previously thought, in patients who were visiting a physician for a physical...

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