Research links strokes with arteries in brain
ONE in five strokes may be caused by a weakening of the tiny arteries in the brain, a study by Edinburgh scientists has found.
New research shows that the brain damage caused by lacunar strokes – which occur in tiny rather than large arteries – may be caused by a gradual weakening of the artery wall. It was previously thought that this type of stroke was caused only by reduced blood flow to the brain.
Scientists at Edinburgh University believe that this weakening occurs in the protective lining of the small arteries – known as the blood-brain barrier – which stops potentially harmful substances getting into the brain.
Joanna Wardlaw, professor of applied neuroimaging at the university, said: "This is an important milestone.
"We don't know exactly what causes this weakening of the blood-brain barrier – it may be age, blood pressure or inflammation. More research is required, but we hope the results will help in the search for more treatments to this widespread condition."
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Monday 28 May 2012
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