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Methylene tetrahydrofolate reductase, transforming growth factor-ß1 and lymphotoxin-α genes polymorphisms and susceptibility to rheumatoid arthritis / Polimorfismos dos genes metilenotetrahidrofolato redutase, fator de crescimento transformador β1 e linfotoxina-α e susceptibilidade à artrite reumatoide
Shaker, Olfat G; Alnoury, Amina M; Hegazy, Gehan A; El Haddad, Hemmat E; Sayed, Safaa; Hamdy, Ahmed.
  • Shaker, Olfat G; Cairo University. Faculty of Medicine. Medical Biochemistry and Molecular Biology Department. Cairo. EG
  • Alnoury, Amina M; Cairo University. Faculty of Medicine. Medical Biochemistry and Molecular Biology Department. Cairo. EG
  • Hegazy, Gehan A; Cairo University. Faculty of Medicine. Medical Biochemistry and Molecular Biology Department. Cairo. EG
  • El Haddad, Hemmat E; Cairo University. Faculty of Medicine. Medical Biochemistry and Molecular Biology Department. Cairo. EG
  • Sayed, Safaa; Cairo University. Faculty of Medicine. Medical Biochemistry and Molecular Biology Department. Cairo. EG
  • Hamdy, Ahmed; Cairo University. Faculty of Medicine. Medical Biochemistry and Molecular Biology Department. Cairo. EG
Rev. bras. reumatol ; 56(5): 414-420, Sept.-Oct. 2016. tab, graf
Article in English | LILACS | ID: lil-798103
ABSTRACT
ABSTRACT

Background:

Rheumatoid arthritis is a widely prevalent autoimmune disorder with suggested genetic predisposition.

Objectives:

The aim of this study is to detect the pattern of genetic polymorphism of methylene tetrahydrofolate reductase (MTHFR C677 T and A1298 C), transforming growth factor-β1 (TGF-β1 T869 C) and lymphotoxin-α (LT-α A252G) in patients having rheumatoid arthritis and correlate these patterns to disease activity and serum levels of tumor necrosis factor-alpha (TNF-α), B-Cell Activating Factor (BAFF), and osteopontin.

Methods:

A total of 194 subjects, 90 controls and 104 patients with rheumatoid arthritis were genotyped for MTHFR C677 T and A1298 C, TGF-β1 T869 C and LT-α A252G polymorphisms using a methodology based on PCR-RFLP. Also serum levels of TNF-α, osteopontin and BAFF were measured by ELISA kits.

Results:

The CT genotype and T allele of MTHFR C677 T and GG genotype and G allele of LT-α A252G are associated with the risk of RA and with higher levels of the pro-inflammatory cytokine, TNF-α in patients with rheumatoid arthritis.

Conclusion:

Our findings suggest that there is association between MTHFR C677 T and LT-α A252G genes polymorphisms and increased risk of RA in this sample of Egyptian population.
RESUMO
RESUMO Antecedentes A artrite reumatoide é uma doença autoimune amplamente prevalente com sugerida predisposição genética.

Objetivos:

Detectar o padrão de polimorfismo dos genes metilenotetrahidrofolato redutase (MTHFR C677 T e A1298 C), fator de crescimento transformador β1 (TGF-β1 T869 C) e linfotoxina-α (LT-α A252G) em pacientes com artrite reumatoide e correlacionar esses padrões com a atividade da doença e os níveis séricos de fator de necrose tumoral alfa (TNF-α), fator ativador de linfócitos B (BAFF) e osteopontina.

Métodos:

Foram genotipados 194 indivíduos – 90 controles e 104 com artrite reumatoide – à procura de polimorfismos dos genes MTHFR C677 T e A1298 C, TGF-β1 T869 C e LT-α A252G com uma metodologia baseada na PCR-RFLP. Mensuraram-se também os níveis séricos de TNF-α, osteopontina e BAFF com kits de Elisa.

Resultados:

O genótipo CT e o alelo T do MTHFR C677 T e o genótipo GG e alelo G do LT-α A252G estão associados ao risco de AR e a níveis mais elevados da citocina pró-inflamatória TNF-α em pacientes com artrite reumatoide. Conclusão Os achados do presente estudo sugerem que há associação entre os polimorfismos dos genes MTHFR C677 T e LT-α A252G e um risco aumentado de AR nessa amostra da população egípcia.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Arthritis, Rheumatoid / Lymphotoxin-alpha / Methylenetetrahydrofolate Reductase (NADPH2) / Transforming Growth Factor beta1 Limits: Humans Country/Region as subject: Africa Language: English Journal: Rev. bras. reumatol Journal subject: Rheumatology Year: 2016 Type: Article Affiliation country: Egypt Institution/Affiliation country: Cairo University/EG

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Full text: Available Index: LILACS (Americas) Main subject: Arthritis, Rheumatoid / Lymphotoxin-alpha / Methylenetetrahydrofolate Reductase (NADPH2) / Transforming Growth Factor beta1 Limits: Humans Country/Region as subject: Africa Language: English Journal: Rev. bras. reumatol Journal subject: Rheumatology Year: 2016 Type: Article Affiliation country: Egypt Institution/Affiliation country: Cairo University/EG