In sickle cell disease, hemoglobin -- the oxygen-carrying component of blood -- forms fibers that stiffen red blood cells and cause life-threatening symptoms. Using light-scattering techniques to study the detailed thermodynamics of this process, researchers reporting in the November 5 issue of the Biophysical Journal, a Cell Press publication, have determined the strength of the forces that hold these fibers intact. The information could be used to design therapies that interfere with the sickling process.
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