Pharmaco-Proteomic Study of Hydroxyurea-Induced Modifications in the Sickle Red Blood Cell Membrane Proteome

Side Effects of Hydroxyurea in Patients with Sickle Cell Anemia

Background: Hemoglobin S arises is the result of a point mutation (A-T) in the sixth codon on the -globin gene on chromosome 11 causing sickle cell anemia. The presence of fetal hemoglobin in infancy plays a relatively protective role for vaso-occlusive symptoms that are the major contributor for the morbidity and mortality among patients with sickle cell anemia. hydroxyurea, an s-phase-specif...

Hydroxyurea treatment does not increase blood viscosity and improves red blood cell rheology in sickle cell anemia.

The paradox of the serrated sickle erythrocyte: The importance of the red blood cell membrane topography.

Red blood cell rheology and adhesiveness play a key role in the occurrence of vaso-occlusive like events in sickle cell anemia. The present paper reviews counter-intuitive findings supporting that rigid and serrated sickle red blood cells do not initiate vaso-occlusion. Instead, the less rigid red blood cells could initiate vaso-occlusion because of their increased adhesiveness to the vascular ...

Sickle Cell Disease: Is Hydroxyurea

We read with interest the recent article on efficacy of hydroxyurea (HU) in sickle cell disease (SCD) [1]. We share our experience in managing nine such patients (4 males) aged between 3 and 19 years. Seven patients were on regular HU therapy (15-20 mg/kg/d) and penicillin prophylaxis for median period of 2.8 years. All had history of repeated fever, chest infections and vasoocclusive episodes ...

Faster lactate transport across red blood cell membrane in sickle cell trait carriers.

The physical and physiological behavior of sickle cell trait carriers (AS) is somewhat equivocal under strenuous conditions, although this genetic abnormality is generally considered to be a benign disorder. The occurrence of incidents and severe injuries in AS during exercise might be explained, in part, by the lactic acidosis due to a greater lactate influx into AS red blood cells (RBCs). In ...