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Article Abstract

Objective: To analyze the hematological phenotype and genotype of : c.96-2A > G carriers.

Methods: The blood routine parameters and hemoglobin electrophoresis of rare cases were analyzed and identified by PCR combined with reverse dot blot (RBD-PCR), GAP-PCR and DNA sequencing.

Results: Among the 7 patients, one adult patient had normal hemoglobin levels, with slightly decreased mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH). Hb Bart's band was found in 6 neonates by hemoglobin electrophoresis, of which the content of Hb Bart's band in 1 neonate was 15.80%, and the content of Hb Bart's band in the other 5 neonates was 0.30%-0.90%. The results of genetic analysis showed that all the 7 patients had : c.96-2A > G (IVS-I-116A > G) mutation, in which 1 case was compounded with - deletion.

Conclusion: : c.96-2A > G mutation carriers exhibit the phenotype of α-thalassemia, and when the :c.96-2A > G mutation is combined with - deletion, an intermediate phenotype of anemia is produced.

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http://dx.doi.org/10.1080/16078454.2024.2426829DOI Listing

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