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    For stroke victims or those wanting information


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    Air pollution can cause ya to have a stroke...

    Pollution among top 10 stroke risks: study
    Sat, Jun 11, 2016 - Air pollution was fingered for the first time as a major contributor to death and disability caused by stroke, especially in developing nations, in a health review published yesterday.
    Air pollution, both inside from cooking fires and outside from traffic fumes, ranked among the top-10 causes of stroke, along with better known risks, such as smoking, high blood pressure and obesity. An international research team analyzed data from a swathe of other studies, reports and official statistics to create a mathematical model estimating stroke risk for 188 nations from 1990 to 2013. “A striking finding of our study is the unexpectedly high proportion of stroke burden attributable to environmental air pollution, especially in developing countries,” said study co-author Valery Feigin of New Zealand’s Auckland University of Technology. The authors said the study is the first to quantify the world’s stroke burden in terms of healthy years lost due to people becoming sick, disabled, or dying because of stroke.

    About 15 million people worldwide suffer strokes every year, of which nearly 6 million die and 5 million are left disabled — including loss of vision or speech, paralysis and confusion. Globally, though with huge differences between nations and regions, the top risk factors are high blood pressure, a diet low in fruit, being overweight, eating too much salt, smoking and not eating enough vegetables, the team said. Ambient pollution came in seventh place and household air pollution from solid fuels in eighth. A diet low in whole grains and high blood sugar complete the top 10. The researchers found that 90.5 percent of the stroke burden was attributable to “modifiable factors” — mainly behaviors such as smoking, eating too much sugar and not exercising enough, as well as the associated health problems, such as diabetes and heart disease, these choices result in.

    Controlling lifestyle factors, which plays a much larger role in rich nations than poor ones, “could prevent about three-quarters of strokes worldwide,” Feigin said. The study also listed air pollution as a “modifiable factor,” meaning that people or governments can do something to change it. “These findings are important for education campaigns, evidence-based planning, priority setting and resource allocation in stroke prevention,” the team wrote in The Lancet Neurology. “Air pollution has emerged as a significant contributor to global stroke burden, especially in low-income and middle-income countries, and therefore reducing exposure to air pollution should be one of the main priorities to reduce stroke burden in these countries,” they said.

    In low and middle-income nations in Asia and Africa, almost one-fifth of stroke burden is attributed to household air pollution, while a similar percentage is blamed on ambient air pollution in China and India. Air pollution might boost stroke risk by raising blood pressure, hardening blood vessels or causing them to become blocked. The risk factor whose contribution shrank most between 1990 and 2013 was second-hand tobacco smoke, especially in developed nations, the team said. The fastest-growing stroke risk was consumption of sugar-sweetened soft drinks.

    http://www.taipeitimes.com/News/worl.../11/2003648382

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    Most strokes preventable...

    9 Out of 10 Strokes Preventable
    July 18, 2016 - Ninety percent of strokes could be prevented, according to a new study.
    Writing in The Lancet, researchers from Canada's McMaster University say 10 stroke risk factors “that can be modified are responsible for nine of 10 strokes worldwide.” The U.S. Centers for Disease Control and Prevention estimates 800,000 Americans suffer from strokes each year, making it the fifth leading cause of death. There are two types of stroke, ischaemic strokes caused by blood clots and accounts for 85 percent of strokes, while hemorrhagic strokes or bleeding into the brain account for 15 percent of strokes. The researchers say that by eliminating hypertension alone, the number of strokes could be nearly halved. The occurrence of stroke could be cut by a further 36 percent with more physical activity and by 19 percent by eating a more healthy diet. Reducing alcohol and tobacco intake also reduces the likelihood of strokes, as does reducing stress, researchers said.

    Other factors included diabetes, obesity, heart conditions and cholesterol. "This study has the size and scope to explore stroke risk factors in all major regions of the world and within key populations," said Martin O'Donnell, a Caster study co-lead. "We have confirmed the 10 modifiable risk factors associated with 90 percent of stroke cases in all regions, young and older and in men and women. The study also confirms that hypertension is the most important modifiable risk factor in all regions, and the key target in reducing the burden of stroke globally." The researchers based their findings on data from nearly 27,000 people from around the world.

    The role of each risk factor varied by region. For example hypertension was more of a risk in Southeast Asia than in North America. These findings underscored previous research from the INTERSTERILE study, which identified risk factors associated with stroke among 6,000 subjects in 22 countries. “Our findings will inform the development of global population-level interventions to reduce stroke, and how such programs may be tailored to individual regions, as we did observe some regional differences in the importance of some risk factors by region,” according to study author Slim Kyushu, a professor at the Population Health Research Institute at McMaster University. “This includes better health education, more affordable healthy food, avoidance of tobacco and more affordable medication for hypertension and dyslipidaemia.”

    http://www.voanews.com/content/mht-n...e/3423186.html

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    New Study: After a Stroke, Time is of the Essence...

    After a Stroke, Time is Critical, Even More Than Previously Thought
    September 28, 2016 | WASHINGTON — After a large vessel stroke, a new study finds that a shorter time to treatment after a stroke is critical to having the best recovery.
    Stroke is the second leading cause of death worldwide and the third leading cause of disability according to the World Health Organization. Researchers from the University of California, Los Angeles, wanted to find out what window of time could provide the best recovery rate for stroke patients, along with which treatment also worked best. So they reviewed outcomes of more than 1,200 patients experiencing acute ischemic stroke — a stoke in a major artery that cuts off the blood supply to the brain. Some patients received standard clot-breaking medicine and others received that plus a thrombectomy, a procedure using a tool that pulls clots out of an artery.

    Their findings: the sooner the patient had a thrombectomy, the better the overall recovery. "Time makes a big difference. Every four minutes that goes by after a patient gets to the hospital, one fewer out of 100 patients has a good outcome if the artery hasn’t been opened,” says Dr. Jeffrey Saver, director of the Comprehensive Stroke Center at the University of California Los Angeles, also known as UCLA.


    New Study: After a Stroke, Time is of the Essence

    Blood clots in major arteries cause blood to stop flowing to the brain, and without a blood supply, the brain cells begin to die, which is why time is of the essence when treating a stroke. “If you get the artery open at three hours, then 65 percent of patients will be able to live independently three months later. If it takes eight hours to get it open, then only 45 percent will be able to live independently. It makes a major difference in outcome,” said Saver.

    Saver said it is critical for everyone to know the signs of stroke — facial drooping, arm weakness and difficulty with speech. When these symptoms appear, it's critical to get emergency care. "Often the patient can't make the call themselves because the stroke is affecting their speaking or their ability to recognize they are having a stroke," he said. The study was published in JAMA, The Journal of the American Medical Association. Some researchers say the study may change the treatment stroke patients receive when they first come into the hospital.

    http://www.voanews.com/a/stroke-time...l/3528260.html

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    Australian Funnel Web Spider venom may offer stroke therapy...


    Spider venom may offer stroke therapy
    Mon, 20 Mar 2017 - Protein extracted from funnel webs may help minimise the effects of brain damage after a stroke.
    Scientists found a single dose of the protein Hi1a worked on lab rats. They said it showed "great promise as a future stroke treatment" but had not yet been tested in human trials. The Stroke Association said the research was at its early stages but it would "welcome any treatment that has the potential to reduce the damage caused by stroke". The researchers, from the University of Queensland and Monash University, travelled to Fraser Island in Australia to hunt for and capture three potentially deadly Australian funnel web spiders. They then took the spiders back to their laboratory "for milking". This involved coaxing the spider to release its venom, which can then be sucked up using pipettes. The scientists honed in on a protein in the venom and recreated a version of it in their lab. They then injected this Hi1a into the lab rats.




    Funnel web spiders are milked using a pipette that sucks up their venom



    * A stroke is a brain attack that happens when the blood supply to part of the brain is cut off or there is bleeding on the brain
    * Every two seconds, someone in the world will have a stroke
    * Almost 17 million people who had never had a stroke before had one in 2010
    * Stroke is the second most common cause of death, causing about 6.7 million deaths each year, one every five seconds
    * Almost one in every eight deaths is caused by stroke
    * The burden of stroke-related illness, disability and early death is set to double within the next 15 years


    They found that the protein blocked acid-sensing ion channels in the brain - something the researchers say are key drivers of brain damage after stroke. Prof Glenn King, who led the research, said the protein showed "great promise as a future stroke treatment". "We believe that we have, for the first time, found a way to minimise the effects of brain damage after a stroke. "Hi1a even provides some protection to the core brain region most affected by oxygen deprivation, which is generally considered unrecoverable due to the rapid cell death caused by stroke." The research was published in Proceedings of the National Academy of Sciences.



    Researchers say the protein "provides exceptional levels of protection for eight hours after stroke onset"



    Dr Kate Holmes, deputy director for Research at the Stroke Association, said: "We do not have an accurate picture of what happens in human brains from this research, therefore, it is currently unknown if this could be a successful treatment option for humans in the future. "We welcome any treatment that has the potential to reduce the damage caused by stroke, particularly if this can benefit people who are unable to arrive at hospital quickly. "Current treatments must be given in half this time period, and it is too early for us to know if this research can offer an alternative for stroke patients. "We urge for stroke to be treated as an emergency - the sooner a person can get to hospital after a stroke, the sooner the right treatment can be received, which can improve survival and help recovery."


    http://www.bbc.com/news/health-39335367

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