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HEALTH

The Claim

Hydroxyurea treatment for sickle cell disease increases fetal hemoglobin production and reduces red blood cell sickling.

Verified by Lenz ·

The Short Version

The claim matches the established medical evidence. Hydroxyurea is a standard disease-modifying therapy for sickle cell disease because it raises fetal hemoglobin, which in turn suppresses hemoglobin S polymerization and reduces red blood cell sickling. Individual response varies, but that does not materially change the core conclusion.

Caveats

  • Not every patient has the same magnitude of fetal hemoglobin increase or clinical benefit.
  • The exact molecular mechanism by which hydroxyurea induces fetal hemoglobin is still being refined, even though the overall effect is well supported.
  • The reduction in sickling is chiefly supported through the HbF-mediated pathway rather than identical direct sickling measurements in every treated patient.

The Receipts

  1. Hydroxyurea therapy for sickle cell anemia

    NIH / PMC

  2. Hydroxyurea induces fetal hemoglobin by the nitric oxide-cGMP signaling pathway

    PubMed Central

  3. Hydroxyurea enhances fetal hemoglobin production in sickle cell anemia

    PubMed

  4. The modern use of hydroxyurea for children with sickle cell anemia

    Haematologica

  5. Hydroxyurea Treatment for Sickle Cell Disease

    St. Jude Children’s Research Hospital

  6. Hematologic Responses of Patients with Sickle Cell Disease to Hydroxyurea

    The New England Journal of Medicine

  7. Mechanism for fetal hemoglobin induction by hydroxyurea in sickle cell disease

    Augusta University ElsevierPure

  8. Hydroxyurea for Sickle Cell Disease

    American Society of Hematology

  9. Hydroxyurea reduces the levels of the fetal globin gene repressors BCL11A and ZBTB7A in erythroid cells

    Journal of Sickle Cell Disease and Hemoglobinopathies (Oxford Academic)

  10. Fetal Hemoglobin in Sickle Cell Anemia: Determinants of Response to Hydroxyurea

    Blood (ASH Publications)

+ 11 more sources — see the full list on Lenz

Filed Under

Fetal HemoglobinHydroxyureaSickle Cell Disease

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