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Roles of IL-8 -251A/T and +781C/T polymorphisms, IL-8 level, and the risk of age-related macular degeneration.

Authors
  • Ulhaq, Z S1
  • Soraya, G V2
  • 1 Departamento de Ciencia Bioquímica, Facultad de Medicina y Ciencias de la Salud, Universidad Estatal Islámica Maulana Malik Ibrahim, Batu, Indonesia. Electronic address: [email protected] , (Indonesia)
  • 2 Departamento de Bioquímica, Facultad de Medicina, Universidad Hasanuddin, Macasar, Indonesia. , (Indonesia)
Type
Published Article
Journal
Archivos de la Sociedad Espanola de Oftalmologia
Publication Date
Sep 01, 2021
Volume
96
Issue
9
Pages
476–487
Identifiers
DOI: 10.1016/j.oftal.2020.02.019
PMID: 33563476
Source
Medline
Keywords
Language
Spanish
License
Unknown

Abstract

To clarify the association between IL-8 gene polymorphisms, IL-8 level, towards the risk of age-related macular degeneration (AMD). Meta-analysis was performed from available studies that investigated IL-8 -251A/T (rs4073) and +781C/T (rs2227306) polymorphisms and IL-8 levels in patients with AMD and controls. Overall, the pooled result showed a significant association between AMD with allelic (T vs. C; OR 1.53; p = 0.005), dominant (TT + CT vs. CC; OR 1.95; p = 0.017), homozygous (TT vs. CC; OR 2.03; p = 0.039) and heterozygous (CT vs. CC; OR 1.92; p = 0.032) models of rs2227306; while subgroup analysis revealed a significant association between rs2227306 with wet AMD in allelic (T vs. C; OR 1.69; p = 0.016), recessive (TT vs. CT + CC; OR 1.81; p = 0.00007), and homozygous (TT vs. CC; OR 2.64; p = 0.003) models. No significant association was observed between rs4073 with AMD in all inheritance models. In parallel, patients with AMD, particularly wet AMD had an elevated level of IL-8 compared to control. This meta-analysis suggests that patients with AMD or wet AMD have higher IL-8 levels compared to control, which is also supported by the evidence that carrier T allele of rs2227306 exhibited an increase in the risk of AMD or wet AMD. Thus, IL-8 +781C/T (rs2227306) polymorphism and the level of intraocular IL-8 may be useful as a biomarker for early detection and a therapeutic target of AMD. Copyright © 2020 Sociedad Española de Oftalmología. Publicado por Elsevier España, S.L.U. All rights reserved.

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