How the inflamed brain becomes disconnected after a stroke
Whether reeling from a sudden stroke or buckling under the sustained assault of Alzheimer's, the brain becomes inflamed, leading to cognitive problems and even death.
Apr 12, 2024
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Whether reeling from a sudden stroke or buckling under the sustained assault of Alzheimer's, the brain becomes inflamed, leading to cognitive problems and even death.
Apr 12, 2024
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64
A team of researchers affiliated with several institutions in Sweden, Finland and Denmark has found evidence that suggests babies born to mothers with preeclampsia have an increased risk of a stroke and/or heart disease later ...
Since the early 20th century, researchers believed that movements on the right and left sides of the body were controlled by the opposite hemisphere of the brain and that handedness resulted from the dominant side doing a ...
Jul 12, 2024
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A newly developed molecule, LK-2, could inform new therapies for stroke-related brain injury, find scientists at The Hospital for Sick Children (SickKids).
Jul 10, 2024
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University of Cincinnati researchers have pioneered an animal model that sheds light on the role an understudied organ in the brain has in repairing damage caused by stroke.
Jul 1, 2024
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People who experience stroke have limited therapeutic options, but new research by investigators from Massachusetts General Hospital reveals the potential for non-invasive light treatment using lasers. The results are published ...
Jun 19, 2024
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A class of drugs already on the market to lower blood pressure appears to reduce adults' risk of developing epilepsy, Stanford Medicine researchers and their colleagues have discovered. The finding comes out of an analysis ...
Jun 18, 2024
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A new trial conducted by the University of Oxford reveals that sildenafil, commonly known as Viagra, enhances blood flow to the brain and improves the function of brain blood vessels in patients at a heightened risk of vascular ...
Jun 7, 2024
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When we learn something new, our brain cells (neurons) communicate with each other through electrical and chemical signals. If the same group of neurons communicate together often, the connections between them get stronger. ...
Jun 7, 2024
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Patients with atrial fibrillation (AF), the most common heart rhythm disorder, have a higher than expected risk of developing some forms of dementia, a new study has found.
Jun 5, 2024
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A stroke is the rapidly developing loss of brain function(s) due to disturbance in the blood supply to the brain. This can be due to ischemia (lack of blood supply) caused by thrombosis or embolism or due to a hemorrhage. As a result, the affected area of the brain is unable to function, leading to inability to move one or more limbs on one side of the body, inability to understand or formulate speech, or inability to see one side of the visual field. In the past, stroke was referred to as cerebrovascular accident or CVA, but the term "stroke" is now preferred.[citation needed]
A stroke is a medical emergency and can cause permanent neurological damage, complications, and death. It is the leading cause of adult disability in the United States and Europe. In the UK, it is the second most common cause of death, the first being heart attacks and third being cancer. It is the number two cause of death worldwide and may soon become the leading cause of death worldwide. Risk factors for stroke include advanced age, hypertension (high blood pressure), previous stroke or transient ischemic attack (TIA), diabetes, high cholesterol, cigarette smoking and atrial fibrillation. High blood pressure is the most important modifiable risk factor of stroke.
The traditional definition of stroke, devised by the World Health Organization in the 1970s, is a "neurological deficit of cerebrovascular cause that persists beyond 24 hours or is interrupted by death within 24 hours". This definition was supposed to reflect the reversibility of tissue damage and was devised for the purpose, with the time frame of 24 hours being chosen arbitrarily. The 24-hour limit divides stroke from transient ischemic attack, which is a related syndrome of stroke symptoms that resolve completely within 24 hours. With the availability of treatments that, when given early, can reduce stroke severity, many now prefer alternative concepts, such as brain attack and acute ischemic cerebrovascular syndrome (modeled after heart attack and acute coronary syndrome respectively), that reflect the urgency of stroke symptoms and the need to act swiftly.
A stroke is occasionally treated with thrombolysis ("clot buster"), but usually with supportive care (speech and language therapy, physiotherapy and occupational therapy) in a "stroke unit" and secondary prevention with antiplatelet drugs (aspirin and often dipyridamole), blood pressure control, statins, and in selected patients with carotid endarterectomy and anticoagulation.
This text uses material from Wikipedia, licensed under CC BY-SA