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By Laura Hambleton

Sickle cell disease��is one of the most common inherited blood disorders, mostly found in people of African, Hispanic, Mediterranean and Middle Eastern descent and affecting about��100,000������Ӱҵns. For the disease to emerge, it must be passed down by both parents. The syndrome causes normal, oval-shaped red blood cells to lose oxygen and collapse into sickle shapes. These mutated cells do not flow smoothly and can get lodged in veins, causing excruciating pain, anemia, severe fatigue, respiratory distress and eventually organ failure and early death.

A 1973 study put the average life expectancy after diagnosis, which usually occurred in childhood, at around 14 years. But researchers say that today many people with the disease can live far longer due to early treatment with antibiotics, better pain management and especially the use of hydroxyurea.

Bone marrow treatments

There is a cure for sickle cell — in some cases — but it is risky and can require a lifetime of continued medicine. That cure is a bone marrow transplant.

Only about 500 such transplants have been done around the country, 40 of them at the National Institutes of Health, and all but a few involving children. will perform 12 to 15 this year, according to Meier.

“But there are risks,” she said. “We can have graft-versus-host disease with new bone marrow. Sickle cell patients have a higher risk of complicating stroke, seizures early in transplant, and they are always at high risk for bleedings, infection. Transplants are not an easy cure.”

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