Stroke News and Research

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A stroke is a medical emergency. Strokes happen when blood flow to your brain stops. Within minutes, brain cells begin to die. There are two kinds of stroke. The more common kind, called ischemic stroke, is caused by a blood clot that blocks or plugs a blood vessel in the brain. The other kind, called hemorrhagic stroke, is caused by a blood vessel that breaks and bleeds into the brain. "Mini-strokes" or transient ischemic attacks (TIAs), occur when the blood supply to the brain is briefly interrupted.

Discovery of mechanism and possible drug treatment for growth of nerve tumors in neurofibromatosis

Researchers studying neurofibromatosis type 1 - a rare disease in which tumors grow within nerves - have found that the tumors are triggered by crosstalk between cells in the nerves and cells in the blood.

30 Oct 2008

Pulsed ultrasound used to remote control brain circuits

In a twist on nontraditional uses of ultrasound, a group of neuroscientists at Arizona State University has developed pulsed ultrasound techniques that can remotely stimulate brain circuit activity.

29 Oct 2008

Melanin shows potential as new drug target for obesity

As millions of Americans gear up for the Thanksgiving holiday, a new research report published online in The FASEB Journal, may provide some relief for those leery of having a second helping.

29 Oct 2008

Tiny hearts may have big problems with complementary medicine

Giving supplement such as herbs, vitamins, and other natural health products to children taking Warfarin for congenital heart defects could increase their risk of clots, bleeding, and other complications, nurse practitioner Mary Bauman and Dr. Patti Massicotte told the 2008 Canadian Cardiovascular Congress, co-hosted by the Heart and Stroke Foundation and the Canadian Cardiovascular Society.

28 Oct 2008

Lots of neighborhood greenness linked to lower children's body mass

In the first study to look at the effect of neighborhood greenness on inner city children's weight over time, researchers from the Indiana University School of Medicine, Indiana University-Purdue University Indianapolis and the University of Washington report that higher neighborhood greenness is associated with slower increases in children's body mass over a two year period, regardless of residential density.

28 Oct 2008

Brain stimulation improves dexterity

Applying electrical stimulation to the scalp and the underlying motor regions of the brain could make you more skilled at delicate tasks. Research published today in the open access journal BMC Neuroscience shows that a non-invasive brain-stimulation technique, transcranial direct current stimulation (tDCS), is able to improve the use of a person's non-dominant hand.

28 Oct 2008

Improved communication about medications reduces complications among patients using common blood thinner

Patients who report receiving written and verbal instructions on the proper way to take the blood thinner warfarin are significantly less likely to suffer the serious gastrointestinal and brain bleeding problems that are associated with misuse of the drug, according to new research from the University of Pennsylvania School of Medicine.

27 Oct 2008

Study looks at rare condition known as phonagnosia

The first known case of someone born without the ability to recognise voices has been reported in a paper by UCL (University College London) researchers, in a study of a rare condition known as phonagnosia. The UCL team are calling for other people to come forward if they think they have also grown up with the condition.

27 Oct 2008

Anxiety disorders latest worry in high blood pressure

Family doctors and psychiatrists should carefully monitor the heart health of patients with anxiety disorders, Dr. Simon Bacon told the Canadian Cardiovascular Congress 2008, co-hosted by the Heart and Stroke Foundation and the Canadian Cardiovascular Society. "People with anxiety disorders are four times more likely to develop high blood pressure (hypertension) over one year than those of us who are anxiety free," says Dr. Bacon, a Heart and Stroke Foundation researcher at the Montreal Heart Institute. "Hypertension is a leading risk factor for stroke and heart disease."

27 Oct 2008

Statins show promise for deep vein thrombosis

Statins, the class of drugs commonly used for lowering cholesterol, are now showing promise at preventing deep vein thrombosis (DVT) or blood clots, an affliction that occurs in nearly 2 million Americans each year.

27 Oct 2008

Bisphosphonates for osteoporosis increase risk for heart problems

People who take bisphosphonates for osteoporosis may be at risk for serious atrial fibrillation (AF), or irregular heartbeats, according to a new study.

27 Oct 2008

Life in Canada more deadly for immigrants?

Immigrants who come to Canada seeking a better life may in fact be setting themselves up for possible premature death.

26 Oct 2008

FDA approves Boston Scientific's carotid artery stent

Boston Scientific Corporation has announced that the U.S. Food and Drug Administration (FDA) has approved its Carotid WALLSTENT Monorail Endoprosthesis for the treatment of patients with carotid artery disease who are at high risk for surgery.

23 Oct 2008

Gene find sheds light on motor neuron diseases like amyotrophic lateral sclerosis

Scientists have identified a gene in mice that plays a central role in the proper development of one of the nerve cells that goes bad in amyotrophic lateral sclerosis, or Lou Gehrig's disease, and some other diseases that affect our motor neurons.

22 Oct 2008

Developing depression after a heart attack increases one’s risk of death or readmission

Science has found many links between depression and other serious medical illnesses, such as cancer, stroke, diabetes, and heart disease. For example, people who develop depression following a heart attack (myocardial infarction) or chest pain (angina) have an elevated risk of cardiac death or hospital readmission over the following year.

22 Oct 2008

Discovery of genetic switch critical for cell survival in Hypoxia

Researchers at the University of California, San Diego School of Medicine have identified a critical metabolic "switch" in fruit flies that helps oxygen-deprived cells survive. "A transcriptional suppressor, called hairy, is crucial for reducing the mismatch between supply and demand of oxygen," said Dan Zhou, first author on the study, published October 17 in the open-access journal PLoS Genetics.

21 Oct 2008

Beta-blockers raise the risk of a heart attack after surgery

A new study has found that for some patients undergoing surgery, beta-blockers before and around the time of the operation increases their risk of heart attack and death.

21 Oct 2008

Junk food responsible for 35% of the world's heart attacks

New research by Canadian scientists says junk food causes a third of all heart attacks and it is diets heavy in fried foods, salty snacks and meat which are the culprits.

21 Oct 2008

Genes that control cell death may play role in age-related hearing loss

Several genes that play a role in how our body's cells normally auto-destruct may play a role in age-related hearing loss, according to research published online in the journal Apoptosis - a journal devoted to the topic of cell suicide, or programmed cell death.

19 Oct 2008

Brain-derived neurotrophic factor may predict schizophrenia relapse

A factor that helps optimize brain formation and function may also provide clues about whether patients suffering with schizophrenia are headed toward relapse, researchers say.

16 Oct 2008