OPA1 increases the risk of normal but not high tension glaucoma

BackgroundPrimary open angle glaucoma is a progressive optic neuropathy characterised by the selective loss of retinal ganglion cells, pathological optic disc cupping and visual field defects. The OPA1 gene encodes an inner mitochondrial membrane protein crucial for normal mitochondrial function, an...

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Veröffentlicht in:Journal of medical genetics 2010-02, Vol.47 (2), p.120-125
Hauptverfasser: Yu-Wai-Man, P, Stewart, J D, Hudson, G, Andrews, R M, Griffiths, P G, Birch, M K, Chinnery, P F
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container_end_page 125
container_issue 2
container_start_page 120
container_title Journal of medical genetics
container_volume 47
creator Yu-Wai-Man, P
Stewart, J D
Hudson, G
Andrews, R M
Griffiths, P G
Birch, M K
Chinnery, P F
description BackgroundPrimary open angle glaucoma is a progressive optic neuropathy characterised by the selective loss of retinal ganglion cells, pathological optic disc cupping and visual field defects. The OPA1 gene encodes an inner mitochondrial membrane protein crucial for normal mitochondrial function, and pathogenic mutations cause autosomal dominant optic atrophy by specifically targeting retinal ganglion cells. This raises the distinct possibility that more subtle genetic variations in OPA1 could alter the risk of developing glaucoma.Methods137 patients with primary open angle glaucoma (67 patients with high-tension glaucoma (HTG), 70 patients with normal-tension glaucoma (NTG)) and 75 controls from the North East of England were studied. Three single-nucleotide polymorphisms in intron 8 (IVS8+4c→t and IVS8+32t→c) and exon 4 (c.473A→G) of the OPA1 gene were genotyped in the study group. In addition, the entire OPA1 coding region was sequenced in 24 individuals with the CT/TT compound genotype using standard BigDye chemistries.ResultsThere was no difference in either allele or genotype frequency for the IVS8+32t→c single-nucleotide polymorphisms between patients and controls, but there was a significant association between the T allele at IVS8+4c→t and the risk of developing NTG (OR=2.04, 95% CI=1.10 to 3.81, p=0.004), but not HTG. Logistic regression analysis also confirmed a strong association between the CT/TT compound genotype at IVS8+4 and IVS8+32 with NTG (OR=29.75, 95% CI=3.83 to 231.21, p=0.001).ConclusionsThe CT/TT compound genotype at IVS8+4 and IVS8+32 is a strong genetic risk determinant for NTG but not HTG.
doi_str_mv 10.1136/jmg.2009.067512
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The OPA1 gene encodes an inner mitochondrial membrane protein crucial for normal mitochondrial function, and pathogenic mutations cause autosomal dominant optic atrophy by specifically targeting retinal ganglion cells. This raises the distinct possibility that more subtle genetic variations in OPA1 could alter the risk of developing glaucoma.Methods137 patients with primary open angle glaucoma (67 patients with high-tension glaucoma (HTG), 70 patients with normal-tension glaucoma (NTG)) and 75 controls from the North East of England were studied. Three single-nucleotide polymorphisms in intron 8 (IVS8+4c→t and IVS8+32t→c) and exon 4 (c.473A→G) of the OPA1 gene were genotyped in the study group. In addition, the entire OPA1 coding region was sequenced in 24 individuals with the CT/TT compound genotype using standard BigDye chemistries.ResultsThere was no difference in either allele or genotype frequency for the IVS8+32t→c single-nucleotide polymorphisms between patients and controls, but there was a significant association between the T allele at IVS8+4c→t and the risk of developing NTG (OR=2.04, 95% CI=1.10 to 3.81, p=0.004), but not HTG. Logistic regression analysis also confirmed a strong association between the CT/TT compound genotype at IVS8+4 and IVS8+32 with NTG (OR=29.75, 95% CI=3.83 to 231.21, p=0.001).ConclusionsThe CT/TT compound genotype at IVS8+4 and IVS8+32 is a strong genetic risk determinant for NTG but not HTG.</description><identifier>ISSN: 0022-2593</identifier><identifier>EISSN: 1468-6244</identifier><identifier>DOI: 10.1136/jmg.2009.067512</identifier><identifier>PMID: 19581274</identifier><identifier>CODEN: JMDGAE</identifier><language>eng</language><publisher>London: BMJ Publishing Group Ltd</publisher><subject>Aged ; Aged, 80 and over ; Amino Acid Sequence ; Biological and medical sciences ; Case-Control Studies ; Chi-Square Distribution ; Dominant optic atrophy ; Fundamental and applied biological sciences. Psychology ; General aspects. Genetic counseling ; Genetic Predisposition to Disease ; Genetics of eukaryotes. Biological and molecular evolution ; Genotype ; Glaucoma ; Glaucoma and intraocular pressure ; Glaucoma, Open-Angle - genetics ; GTP Phosphohydrolases - genetics ; Haplotypes ; Humans ; Introns ; Logistic Models ; Medical genetics ; Medical sciences ; mitochondria ; Molecular and cellular biology ; molecular genetics ; Molecular Sequence Data ; neuroophthalmology ; OPA1 ; Ophthalmology ; optic nerve ; Polymorphism, Single Nucleotide ; Sequence Alignment</subject><ispartof>Journal of medical genetics, 2010-02, Vol.47 (2), p.120-125</ispartof><rights>2009, Published by the BMJ Publishing Group Limited For permission to use, (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright: 2009 (c) 2009, Published by the BMJ Publishing Group Limited For permission to use, (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b523t-bf986a1577c52040408f354d6d879e91f3c6bed2501d74433a45c541762eac283</citedby><cites>FETCH-LOGICAL-b523t-bf986a1577c52040408f354d6d879e91f3c6bed2501d74433a45c541762eac283</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://jmg.bmj.com/content/47/2/120.full.pdf$$EPDF$$P50$$Gbmj$$H</linktopdf><linktohtml>$$Uhttps://jmg.bmj.com/content/47/2/120.full$$EHTML$$P50$$Gbmj$$H</linktohtml><link.rule.ids>114,115,230,314,776,780,881,3183,23550,27901,27902,77343,77374</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=22378867$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19581274$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yu-Wai-Man, P</creatorcontrib><creatorcontrib>Stewart, J D</creatorcontrib><creatorcontrib>Hudson, G</creatorcontrib><creatorcontrib>Andrews, R M</creatorcontrib><creatorcontrib>Griffiths, P G</creatorcontrib><creatorcontrib>Birch, M K</creatorcontrib><creatorcontrib>Chinnery, P F</creatorcontrib><title>OPA1 increases the risk of normal but not high tension glaucoma</title><title>Journal of medical genetics</title><addtitle>J Med Genet</addtitle><description>BackgroundPrimary open angle glaucoma is a progressive optic neuropathy characterised by the selective loss of retinal ganglion cells, pathological optic disc cupping and visual field defects. The OPA1 gene encodes an inner mitochondrial membrane protein crucial for normal mitochondrial function, and pathogenic mutations cause autosomal dominant optic atrophy by specifically targeting retinal ganglion cells. This raises the distinct possibility that more subtle genetic variations in OPA1 could alter the risk of developing glaucoma.Methods137 patients with primary open angle glaucoma (67 patients with high-tension glaucoma (HTG), 70 patients with normal-tension glaucoma (NTG)) and 75 controls from the North East of England were studied. Three single-nucleotide polymorphisms in intron 8 (IVS8+4c→t and IVS8+32t→c) and exon 4 (c.473A→G) of the OPA1 gene were genotyped in the study group. In addition, the entire OPA1 coding region was sequenced in 24 individuals with the CT/TT compound genotype using standard BigDye chemistries.ResultsThere was no difference in either allele or genotype frequency for the IVS8+32t→c single-nucleotide polymorphisms between patients and controls, but there was a significant association between the T allele at IVS8+4c→t and the risk of developing NTG (OR=2.04, 95% CI=1.10 to 3.81, p=0.004), but not HTG. Logistic regression analysis also confirmed a strong association between the CT/TT compound genotype at IVS8+4 and IVS8+32 with NTG (OR=29.75, 95% CI=3.83 to 231.21, p=0.001).ConclusionsThe CT/TT compound genotype at IVS8+4 and IVS8+32 is a strong genetic risk determinant for NTG but not HTG.</description><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Amino Acid Sequence</subject><subject>Biological and medical sciences</subject><subject>Case-Control Studies</subject><subject>Chi-Square Distribution</subject><subject>Dominant optic atrophy</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General aspects. Genetic counseling</subject><subject>Genetic Predisposition to Disease</subject><subject>Genetics of eukaryotes. 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The OPA1 gene encodes an inner mitochondrial membrane protein crucial for normal mitochondrial function, and pathogenic mutations cause autosomal dominant optic atrophy by specifically targeting retinal ganglion cells. This raises the distinct possibility that more subtle genetic variations in OPA1 could alter the risk of developing glaucoma.Methods137 patients with primary open angle glaucoma (67 patients with high-tension glaucoma (HTG), 70 patients with normal-tension glaucoma (NTG)) and 75 controls from the North East of England were studied. Three single-nucleotide polymorphisms in intron 8 (IVS8+4c→t and IVS8+32t→c) and exon 4 (c.473A→G) of the OPA1 gene were genotyped in the study group. In addition, the entire OPA1 coding region was sequenced in 24 individuals with the CT/TT compound genotype using standard BigDye chemistries.ResultsThere was no difference in either allele or genotype frequency for the IVS8+32t→c single-nucleotide polymorphisms between patients and controls, but there was a significant association between the T allele at IVS8+4c→t and the risk of developing NTG (OR=2.04, 95% CI=1.10 to 3.81, p=0.004), but not HTG. Logistic regression analysis also confirmed a strong association between the CT/TT compound genotype at IVS8+4 and IVS8+32 with NTG (OR=29.75, 95% CI=3.83 to 231.21, p=0.001).ConclusionsThe CT/TT compound genotype at IVS8+4 and IVS8+32 is a strong genetic risk determinant for NTG but not HTG.</abstract><cop>London</cop><pub>BMJ Publishing Group Ltd</pub><pmid>19581274</pmid><doi>10.1136/jmg.2009.067512</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; BMJ Journals - NESLi2
subjects Aged
Aged, 80 and over
Amino Acid Sequence
Biological and medical sciences
Case-Control Studies
Chi-Square Distribution
Dominant optic atrophy
Fundamental and applied biological sciences. Psychology
General aspects. Genetic counseling
Genetic Predisposition to Disease
Genetics of eukaryotes. Biological and molecular evolution
Genotype
Glaucoma
Glaucoma and intraocular pressure
Glaucoma, Open-Angle - genetics
GTP Phosphohydrolases - genetics
Haplotypes
Humans
Introns
Logistic Models
Medical genetics
Medical sciences
mitochondria
Molecular and cellular biology
molecular genetics
Molecular Sequence Data
neuroophthalmology
OPA1
Ophthalmology
optic nerve
Polymorphism, Single Nucleotide
Sequence Alignment
title OPA1 increases the risk of normal but not high tension glaucoma
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