Rare Association of Hb D-Los Angeles (HBB: c.364G>C) with Hb H Disease: Diagnosis and Clinical Implications

Hemoglobin. 2018 Sep-Nov;42(5-6):336-338. doi: 10.1080/03630269.2018.1558066. Epub 2019 Jan 9.

Abstract

Hb D-Los Angeles (or Hb D-Punjab) (HBB: c.364G > C) is found worldwide and is derived from a point mutation in the β-globin gene prevalent in the Punjab region of Northwestern India. Heterozygous or homozygous inheritance does not cause significant medical problems, whereas association with other hemoglobinopathies, especially β-thalassemia (β-thal) and sickle cell disease, changes the phenotype. Coinheritance of Hb D-Los Angeles with Hb H disease (α-/- -) has never been reported before. The presence of this rare combination in a family of Greek origin is herein described, and the challenges involving clinical management are discussed.

Keywords: Hb D-Los Angeles (: c.364G>C); α-Thalassemia (α-thal).

Publication types

  • Case Reports

MeSH terms

  • Family
  • Greece
  • Hemoglobinopathies / complications*
  • Hemoglobinopathies / genetics
  • Hemoglobins, Abnormal / genetics*
  • Humans
  • Inheritance Patterns
  • alpha-Thalassemia / complications*

Substances

  • Hemoglobins, Abnormal
  • hemoglobin D Punjab