Âé¶¹´«Ã½

Protein switch controls blood clotting

By Linda Geddes

11 March 2009

A SAFER way to reduce the risk of heart attacks and strokes is a step closer thanks to the identification of a protein that controls the “stickiness” of blood.

When a blood vessel wall is damaged, cells that circulate in the blood called platelets send out tiny sticky “arms” that latch onto other platelets to form a blood clot (see photo, above). The arms also “glue” the clot to the injury, stemming the bleeding. But sometimes clots block arteries supplying the heart or brain, causing heart attacks and strokes.

To investigate the process, , a British Heart…

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with Âé¶¹´«Ã½ events and special offers.

Sign up

To continue reading, today with our introductory offers

or

Existing subscribers

Sign in to your account
Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop