In:
Frontiers in Pediatrics, Frontiers Media SA, Vol. 11 ( 2023-3-20)
Abstract:
To explore the genotypes and allele frequencies of α, β and α+β thalassemias in Li minorities, which resided in Hainan Province of China for a long time. Methods In the present study, 1,438 newborns of the Li minority were collected from January 2020 to April 2021. The genotypes of thalassemia were detected by fluorescence PCR and verified by flow-through hybridization PCR analyses. Rare genotypes were detected by restriction fragment length polymorphism electrophoresis and Sanger DNA sequencing. Results Among 1,438 participants, 1,024 (71.2%) were diagnosed with any kind of thalassemia. Among all thalassemia carriers, 902 (88.09%) subjects were diagnosed with α-thalassemia, and 18 subtypes of α-thalassemia were detected, with the top three genotypes being −α 4.2 /αα (25.39%), −α 3.7 /αα (22.62%) and α WS α/αα (16.96%). Thirty-two (3.13%) patients were β-thalassemia carriers, and 6 types of β-thalassemia genotypes were detected. The top two genotypes were β CD41–42 /β N (46.88%) and β −28 /β N (18.75%). Additionally, 90 (8.79%) cases were α + β-thalassemia, and the top two genotypes were −α 3.7 /αα, β CD41–42 /β N (30.00%) and −α 4.2 /αα, β CD41–42 /β N (26.67%). Furthermore, two genotypes (−α 4.2 /HKαα and β CD76 GCT & gt; CCT /β N ) were first identified in Hainan Province , and β CD76 GCT & gt; CCT /β N was first identified in China. Conclusion Newborns of Li have a higher prevalence of thalassemia for a long period, and further education on the impact of thalassemia, follow-up studies of the clinical manifestation and treatment and proper intervention methods should be designed to reduce the burden of thalassemia and enhance the quality of life in Li newborns.
Type of Medium:
Online Resource
ISSN:
2296-2360
DOI:
10.3389/fped.2023.1139387
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2023
detail.hit.zdb_id:
2711999-3
