Medical Research Council - London Institute of Medical Sciences

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No Smoothie
29 January 2015

No Smoothie

Heart disease kills more than twice the number of men than any other single disease in Britain, and trails in second place in women, just behind dementia. Yet, doctors still don't quite know what drives atherosclerosis – a heart-attack- and stroke-causing disease where blood vessel walls swell due to deposits of hard fatty plaque. Until recently, it was thought that only white blood cells contributed to the swelling when they swallow those fatty deposits and stick to the vessel lining. But the latest research suggests that hitherto unsuspected smooth muscle cells (pictured) inside vessel walls, where they regulate blood pressure by constricting flow, might also be adding to the disease. They’re suspected of behaving like white blood cells, ingesting and accumulating the plaque. Ending this behaviour gives researchers a new target in their search for treatments of atherosclerosis, which can lurk undetected for decades before striking, fatally.

Written by Tristan Farrow

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BPoD stands for Biomedical Picture of the Day. Managed by the MRC London Institute of Medical Sciences the website aims to engage everyone, young and old, in the wonders of biomedicine. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

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