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IGF-1 gene polymorphisms in Polish families with high-grade myopia
Polish Academy of Science.
Polish Academy of Science.
Polish Academy of Science.
Östergötlands Läns Landsting, Sinnescentrum, Department of Ophthalmology UHL/MH.
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2011 (English)In: Molecular Vision, ISSN 1090-0535, E-ISSN 1090-0535, Vol. 17, no 264-65, 2428-2439 p.Article in journal (Refereed) Published
Abstract [en]

Purpose: Recent work has suggested that insulin-like growth factor 1 (IGF-1) gene polymorphisms are genetically linked with high-grade myopia (HM), which is a complex-trait eye disorder in which numerous candidate loci and genes are thought to play a role. We investigated whether the IGF-1 single nucleotide polymorphisms (SNPs) rs6214, rs10860860, and rs2946834 are associated with HM (andlt;=-6.0 diopters [D]) and any myopia (andlt;=-0.5 D) phenotype in Polish families. less thanbrgreater than less thanbrgreater thanMethods: Forty-two multiplex HM Polish families, of whom 127 had HM, participated in the study. All of the family members (n=306) underwent a detailed ophthalmic examination, including axial length measurements. The IGF-1 SNPs rs6214, rs10860860, and rs2946834 were evaluated by PCR-RFLP and direct sequencing methods. Both Family-Based Association Test (FBAT) and family-based Pedigree Disequilibrium Test (PDT) were used to examine the potential association of the IGF-1 SNPs rs6214, rs10860860, and rs2946834 with HM or any myopia. To determine the distribution of the HM-associated SNPs rs6214 and rs10860860, 543 unrelated individuals from the general Polish population were also analyzed. less thanbrgreater than less thanbrgreater thanResults: We found no significant association between the IGF-1 SNPs rs6214, rs10860860, and rs2946834 and HM or any myopia phenotype in Polish HM families. In the general Polish population, the minor allele frequencies of the SNPs rs6214 and rs10860860 did not deviate significantly from the distribution reported for European populations (p=0.629). In the FBAT analysis under the dominant model, the haplotype consisted of T allele of rs10860860, with C allele of rs2946834 of IGF-1 was found less frequently transmitted to HM individuals (p=0.0065), pointing to a nonassociated or protective haplotype. less thanbrgreater than less thanbrgreater thanConclusions: Our results do not support recent studies reporting an association of the SNPs rs6214, rs10860860, and rs2946834 in the IGF-1 gene with HM and any myopia phenotypes. Further replication studies involving other populations are needed to investigate the possible role of IGF-1 as a potential myopia candidate gene.

Place, publisher, year, edition, pages
Molecular Vision , 2011. Vol. 17, no 264-65, 2428-2439 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-71551ISI: 000295228300001OAI: oai:DiVA.org:liu-71551DiVA: diva2:450527
Note
Funding Agencies|Polish Ministry of Science and Higher Education| 2 P05A 095 29 |Institute of Biochemistry and Biophysics PAS||Available from: 2011-10-21 Created: 2011-10-21 Last updated: 2017-12-08

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