CTLA-4 gene polymorphisms are associated with obesity in Turner Syndrome



Título del documento: CTLA-4 gene polymorphisms are associated with obesity in Turner Syndrome
Revue: Genetics and molecular biology
Base de datos: PERIÓDICA
Número de sistema: 000424479
ISSN: 1415-4757
Autores: 1
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4
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Instituciones: 1Universidade Federal de Pernambuco, Departmento de Genética, Recife, Pernambuco. Brasil
2Instituto Federal de Educacao Ciencia e Tecnologia do Sertao Pernambucano, Serra Talhada, Pernambuco. Brasil
3Instituto de Medicina Integral Professor Fernando Figueira, Servico de Genetica Medica, Recife, Pernambuco. Brasil
4Universidade Federal de Pernambuco, Serviço de Endocrinologia Pediátrica, Recife, Pernambuco. Brasil
5Universidade Federal de Pernambuco, Departmento de Biofísica e Radiobiologia, Recife, Pernambuco. Brasil
6Universidade de Pernambuco, Instituto de Biociencias, Recife, Pernambuco. Brasil
Año:
Periodo: Dic
Volumen: 41
Número: 4
Paginación: 727-734
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Caso clínico
Resumen en inglés ABSTRACT Turner syndrome (TS) is characterized by a set of clinical conditions, including autoimmune/inflammatory diseases and infectious conditions, that can compromise a patient’s quality of life. Here we assessed polymorphisms in CTLA-4 +49A/G (rs231775), PTPN22 +1858G/A (rs2476601), and MBL2 -550 (H/L) (rs11003125), -221(X/Y) (rs7096206) and exon 1 (A/O) in women from northeastern Brazil to determine whether polymorphisms within these key immune response genes confer differential susceptibility to clinical conditions in TS. A case-control genetic association study was performed, including 86 female TS patients and 179 healthy women. An association was observed for the A/G genotype of CTLA-4 +49A/G in TS patients (p=0.043, odds ratio [OR]=0.54). In addition, an association between the CTLA-4 G/G genotype and obesity was detected in TS patients (p=0.02, OR=6.04). Regarding, the -550(H/L) polymorphism in the MBL2 promoter, the frequency of the H/L genotype was significantly higher in the TS group than healthy controls (p=0.01, OR=1.96). The H/H genotype indicated a protective effect in TS patients (p=0.01, OR=0.23). No differences were observed in the distribution of -221(X/Y), MBL2 exon 1 variants, and PTPN22 +1858G/A in any assessed groups. CTLA-4 variants are potentially involved in obesity in this cohort of TS patients from northeastern Brazil
Disciplinas: Biología,
Medicina
Palabras clave: Genética,
Inmunología,
Endocrinología,
Gen CTLA-4,
Genes de respuesta inmune,
Obesidad,
Polimorfismo,
Síndrome de Turner
Keyword: Genetics,
Immunology,
Endocrinology,
CTLA-4 gene,
Immune response genes,
Obesity,
Polymorphism,
Turner syndrome
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