[Association Analysis between Genotype and Phenotype of α,β-Thalassaemia Carriers in Huizhou Area of Guangdong Province].

Objective: To analyze the prevalence, genotype distribution and hematological characteristics of α,β-thalassaemia carriers in Huizhou area of Guangdong Province.

Methods: 10 809 carriers of simple β-thalassaemia and 1 757 carriers of α,β-thalassaemia were enrolled as our study cohort. The hematological parameters were detected by automated blood cell counters and automatic capillary electrophoresis.

Genetic counseling and prenatal decision for hemoglobin H disease caused by the rare α2 codon 30 (-GAG) (HBA2: c.91_93delGAG) mutation and the SEA deletion: Case series study.

Objective: We report a rare mutation on the α2-globin gene, HBA2: c.91_93delGAG and its potential functions.

Case Report: We mainly described four patients with hemoglobin (Hb) H disease caused by the rare mutation and the SEA deletion but diversity in clinical presentation.