Tag: "stroke" at biology news

Diet may improve cognition, slow aging, and help protect against cosmic radiation

...lso help protect your brain if you should suffer a stroke or accidental head injury? Or keep your thinking and memory skills strong as you age? Some scientists believe it might. They even think eating the "right" foods --specifically, those high in antioxidants -- may help defend astronauts from brain-dama...

New technique helps shed light on progression of dementia

...r said. "But our knowledge of what happens after a stroke and during these other processes is very limited. This new model of microsphere-induced decreased blood flow gives us better insight into the consequences of abnormal vascular activity."...

Nicotine exposure in aging hearts

...e annually. At its most devastating, AF results in stroke (brain attack) and congestive heart failure. Previous studies have concluded that transdermal nicotine patches should be used cautiously because of the high risk of AF they carry for patients with heart disease. How specific atrial substrates contro...

Researchers show absence of key oxygen-sensing molecule leads to developmental defects

... associated with conditions such as heart attacks, stroke and lung disease. This new model allowed the scientists to take a closer look into the exact physiologic function of these proteins, which was unknown until now, and the model provided clues as to what human diseases may be caused by alterations in t...

Aspirin use safe and effective in patients with abnormal red cell counts (or with polycythemia)

...e of a blood clot within a vessel that may cause a stroke or heart attack. "These results indicate a high benefit/risk ratio of aspirin in a polycythemic population, suggesting that aspirin should be used in all patients with polycythemia vera having no contraindication to this treatment," said Raffael...

Discovery of brain disorder gene paves way for genetic test

... can cause seizures, severe headaches, hemorrhagic stroke and neurological deficits. Affected individuals have a 50 percent chance of passing the disease on to their children. "People with this mutation are at great risk for developing blood vessel lesions in the brain and their associated symptoms, as are...

New understanding of why brain cells die after stroke will lead to development of new treatments

...his is a quantum leap forward in understanding how stroke causes brain damage," says Dr. Michael Tymianski, ... on developing medications that we can inject into stroke patients up to several hours after a stroke. These medications will prevent the consequences of acti...

JCI table of contents, January 2, 2004

...************* Male/female differences in diabetic stroke recovery Diabetic hyperglycemia is a recognized risk factor for stroke and increases brain damage after cerebral ischemia. The underlying mechanisms remain unclear but may...

AMA Alzheimer's Media Briefing

...EFING TOPICS BREAKING NEWS: How risk factors for stroke are related to cognitive decline of Alzheimer's BREAKING NEWS: Distinguishing different types of dementia CAN WE PREVENT ALZHEIMER'S?: Using tantalizing clues from recent studies to reduce risk ADVANCES IN TREATMENT: Recent discoveries about Alz...

Vitamins do little to prevent recurrent stroke

...g whether high-dose vitamins could prevent another stroke found that the vitamins had little effect, accordi...dose. "High-dose vitamin therapy had no effect on stroke prevention, coronary heart disease events or death in this study, which was disappointing," Toole sa...

'Bat saliva' drug and new MRI techniques offer hope for acute stroke treatment

...plase is effective in preventing brain damage from stroke if administered between three and nine hours after...dy will be presented by Steven Warach, director of stroke at the National Institutes of Health. George Newman, professor of neurology, and Ross Levine, associ...

Possible mechanism for link between diabetes and Alzheimer's disease discovered

..., limb amputations, kidney disease, heart disease, stroke and nerve damage. Through research at Joslin Diabetes Center and elsewhere, scientists only recently have come to realize that insulin receptors are present on all tissues of the body, including the brain, and may affect the function of these tissu...

Key advance reported in regenerating nerve fibers

...ar two-pronged approach to regrow axons damaged by stroke or spinal-cord injury. They have already found a way to step on the gas using a small molecule known as inosine to switch damaged nerve cells in the cerebral cortex into a growth state. In 2002, they reported that inosine helped stroke-impaired rats...

Secondary complications and restoration of function in SCI

...on and weight distribution, which in turn affected stroke angle and push frequency. Identifying predictors of long-term pain in persons with SCI (pg 75) This longitudinal study of SCI patients sought to identify physical and psychological factors associated with the consistent reporting of pain. Ninety-s...

U Iowa study identifies damaging mechanism in transplants and heart attacks

...ponent of organ transplantation, heart attack, and stroke and is a determinant of organ failure in all cases. In this type of injury, the organ is initially deprived of oxygen-carrying blood (ischemia). During reperfusion (the re-establishment of blood supply), toxins are briefly generated from the oxygen t...

Early treatment confirmed as key to stroke recovery

...ue of The Lancet* confirms the benefits of getting stroke patients to the hospital quickly for rapid thrombo...esults of an extensive analysis of more than 2,700 stroke patients in six controlled clinical trials who were randomized for treatment with thrombolytic t-PA ...

Sickle cell sufferers living longer, dying less from their disease

... percent of patients with sickle cell anemia had a stroke by 18 years old. Although this rate remains constant, fewer children are dying as a result of the stroke, researchers said. "There weren't any modern or contemporary survival data for children with sickle cell until now," said Dr. Charles Quinn, a...

AChemS: Cutting edge research in taste, smell, & chemical irritation

... and neurological disorders, such as brain injury, stroke and Alzheimer's disease. By providing a better understanding of the function of chemo-sensory systems, scientific and biomedical research is leading to improvements in the diagnoses and treatment of smell and taste disorders. Among those contributing...

Brain signal predicts working memory prowess

...aviorally or verballyimpaired, such as in cases of stroke or paralysis. The technique has alsobeen used to study development of cognitive abilities in pre-verbalchildren....

New approach offers potential drug-discovery shortcut

...n in promoting vascular growth after heart attack, stroke or injury, this new way of identifying potential new drugs may have an even greater impact," he adds. In addition to further studying the mechanism behind the action of the gridlock suppressors they identified, the research team hopes to apply this ...

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