Medical research

Raiders of the lost blood spots

Almost every newborn in the United States is pricked on the heel within hours of birth for a few drops of blood that are then tested for conditions like PKU, sickle cell anemia, and cystic fibrosis. But then the sample is ...

Medical research

Sickle cell anemia as malaria defense

Sickle cell anemia causes pain, fatigue and delayed growth, all because of a lack of enough healthy red blood cells. And yet genetic mutations that cause it - recessive genes for the oxygen-carrying hemoglobin protein - have ...

Medical research

Mystery solved: How sickle hemoglobin protects against malaria

The latest issue of the journal Cell carries an article that is likely to help solve one of the long-standing mysteries of biomedicine. In a study that challenges currently held views, researchers at the Instituto Gulbenkian ...

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