An old intravenous antibiotic may have new life as a stroke treatment, researchers say.

Stroke victims who have obstructive sleep apnea die sooner than stroke victims who do not have sleep apnea or who have central sleep apnea, according to Swedish researchers, who will present their findings at the American Thoracic Society’s 2008 International Conference in Toronto on Monday, May 19.

A multicenter study led by Johns Hopkins doctors has fine-tuned the dosage and timing for administering clot-busting tissue plasminogen activator (tPA) to patients with strokes caused by bleeding within the brain.

Long-term harmful effects of marijuana (MJ) include risk for heart attacks and strokes in addition to impaired learning and memory. The active chemical in MJ called delta-9-tetrahyrdocannabinol (THC) is believed to exert these effects by binding to cannabinoid (CB) receptors located on several cell types in various organs.

Virginia Commonwealth University researchers have discovered how an antibiotic works to modulate the activity of a neurotransmitter that regulates brain functions, which eventually could lead to therapies to treat Alzheimer’s disease, Huntington’s disease, epilepsy, stroke, dementia and malignant gliomas.

Walking therapy for stroke survivors is significantly more effective when conducted by a physical therapist instead of a robot, according a small study reported in Stroke: Journal of the American Heart Association.

There's an electrical storm brewing inside the hearts of more than 2.2 million Americans. And just like lightning, this kind of storm can have devastating consequences.

Each year, according to the American Stroke Association, some 750,000 Americans will suffer from a stroke, the third leading cause of death in the U.S. For African Americans, the statistics are even more frightening.

Imagine being on a trip, feeling suddenly sick, and being unable to call out your spouse's name for help. That was the reality for Utahn Kara Hazen, who was out of town with her husband when her arm went numb and she couldn't tell him. But he recognized her symptoms as signs of a stroke and called 9-1-1.

Using 3-D ultrasound technology they designed, Duke University bioengineers can compensate for the thickness and unevenness of the skull to see in real-time the arteries within the brain that most often clog up and cause strokes.

Atherosclerosis is what our parents and grandparents used to call hardening of the arteries. The bad news about atherosclerosis: It leads to tens of thousands of deaths every year in the U.S. The good news: You can prevent it.

For the first time, researchers have peered deeply at the atomic level into the protein that causes hereditary cerebral amyloid angiopathy (CAA) -- a disease thought to cause stroke and dementia.