Sickle cell disease refers to a group of disorders that affects hemoglobin, the molecule in red blood cells that delivers oxygen to cells throughout the body. People with sickle cell disease have atypical hemoglobin molecules called hemoglobin S, which can distort red blood cells into a sickle, or crescent, shape. When red blood cells stiffen into sickle shapes, they do not move throu... https://www.zupyak.com/p/4496079/t/government-research-funding-driving-high-growth-in-the-sickle-cell-disease-treatment-market