Mediterranean journal of hematology and infectious diseases · 2018
Association of the SOD2 Polymorphism (Val16Ala) and SOD Activity with Vaso-occlusive Crisis and Acute Splenic Sequestration in Children with Sickle Cell Anemia.
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Farias Isabela Cristina Cordeiro, Mendonça-Belmont Taciana Furtado, da Silva Andreia Soares, do Ó Kleyton Palmeira, Ferreira Felipe, Medeiros Fernanda Silva, da Silva Vasconcelos Luydson Richardson, Bezerra Marcos André Cavalcanti, da Silva Araújo Aderson, de Moura Patricia Muniz Mendes Freire, Hatzlhofer Betânia Lucena Domingues, Dos Anjos Ana Claudia Mendonça, de Mendonça Cavalcanti Maria do Socorro
Аннотация
The SOD2 polymorphism Val16Ala T→C influences the antioxidative response. This study investigated the association of the SOD2 polymorphism and superoxide dismutase (SOD) activity with the vaso-occlusive crisis (VOC) and acute splenic sequestration (ASS) in children with sickle cell anemia (SCA). One hundred ninety-five children with SCA aged 1-9 years old were analyzed. The TC and CC genotypes were associated with lower SOD activity compared with the TT genotype (p=0.0321; p=0.0253, respectively). Furthermore, TC and CC were more frequent in patients with VOC or ASS (p=0.0285; p=0.0090, respectively). These results suggest that the SOD2 polymorphism associated with low SOD activity could be a susceptibility factor for the occurrence of VOC and ASS.