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A Particular Focus on the Prevalence of Iα/I- and Iβ/I-Thalassemia in Western Sicilian Population from Trapani Province in the COVID-19 Era

Daidone, Rossella ; Carollo, Antonella ; Perricone, Maria Patrizia ; Messina, Renato ; Balistreri, Carmela Rita

International journal of molecular sciences, 2023-03, Vol.24 (5) [Periódico revisado por pares]

MDPI AG

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  • Título:
    A Particular Focus on the Prevalence of Iα/I- and Iβ/I-Thalassemia in Western Sicilian Population from Trapani Province in the COVID-19 Era
  • Autor: Daidone, Rossella ; Carollo, Antonella ; Perricone, Maria Patrizia ; Messina, Renato ; Balistreri, Carmela Rita
  • Assuntos: Analysis ; Codon ; Gene mutations ; Genetic aspects ; Thalassemia
  • É parte de: International journal of molecular sciences, 2023-03, Vol.24 (5)
  • Descrição: Thalassemia is a Mendelian inherited blood disease caused by α- and β-globin gene mutations, known as one of the major health problems of Mediterranean populations. Here, we examined the distribution of α- and β-globin gene defects in the Trapani province population. A total of 2,401 individuals from Trapani province were enrolled from January 2007 to December 2021, and routine methodologies were used for detecting the α- and β-globin genic variants. Appropriate analysis was also performed. Eight mutations in the α globin gene showed the highest frequency in the sample studied; three of these genetic variants represented the 94% of the total α-thalassemia mutations observed, including the −α3.7 deletion (76%), and the tripling of the α gene (12%) and of the α2 point mutation IVS1-5nt (6%). For the β-globin gene, 12 mutations were detected, six of which constituted 83.4% of the total number of β-thalassemia defects observed, including codon β039 (38%), IVS1.6 T > C (15.6%), IVS1.110 G > A (11.8%), IVS1.1 G > A (11%), IVS2.745 C > G (4%), and IVS2.1 G > A (3%). However, the comparison of these frequencies with those detected in the population of other Sicilian provinces did not demonstrate significant differences, but it contrarily revealed a similitude. The data presented in this retrospective study help provide a picture of the prevalence of defects on the α and β-globin genes in the province of Trapani. The identification of mutations in globin genes in a population is required for carrier screening and for an accurate prenatal diagnosis. It is important and necessary to continue promoting public awareness campaigns and screening programs.
  • Editor: MDPI AG
  • Idioma: Inglês
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