0000000000187382

AUTHOR

Anthony P Khawaja

0000-0001-6802-8585

showing 8 related works from this author

New insights into the genetics of primary open-angle glaucoma based on meta-analyses of intraocular pressure and optic disc characteristics

2017

Item does not contain fulltext Primary open-angle glaucoma (POAG), the most common optic neuropathy, is a heritable disease. Siblings of POAG cases have a ten-fold increased risk of developing the disease. Intraocular pressure (IOP) and optic nerve head characteristics are used clinically to predict POAG risk. We conducted a genome-wide association meta-analysis of IOP and optic disc parameters and validated our findings in multiple sets of POAG cases and controls. Using imputation to the 1000 genomes (1000G) reference set, we identified 9 new genomic regions associated with vertical cup-disc ratio (VCDR) and 1 new region associated with IOP. Additionally, we found 5 novel loci for optic ne…

0301 basic medicineMaleIntraocular pressuregenetic structuresOptic diskGlaucomaPROTEINGenome-wide association studyIDENTIFIES 5Sensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]Optic neuropathyOptic Nerve DiseasesPROSTATEGenetics (clinical)RISKAssociation Studies ArticlesCOMMON VARIANTSGeneral MedicineMiddle AgedCANCER3. Good healthmedicine.anatomical_structureOptic nerveFemaleGlaucoma Open-AngleOptic discCyclin-Dependent Kinase Inhibitor p21medicine.medical_specialtyOpen angle glaucomaSUSCEPTIBILITY LOCIOptic Disk610 Medicine & healthBiology03 medical and health sciencesTonometry OcularOphthalmologyGeneticsmedicineHumansGENOME-WIDE ASSOCIATIONMolecular BiologyIntraocular PressureHomeodomain ProteinsP53Genome HumanPOPULATION-BASED EPIDEMIOLOGYZebrafish Proteinsmedicine.diseaseeye diseases030104 developmental biologysense organsGenome-Wide Association StudyHuman Molecular Genetics
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Meta-analysis of gene-environment-wide association scans accounting for education level identifies additional loci for refractive error

2016

Myopia is the most common human eye disorder and it results from complex genetic and environmental causes. The rapidly increasing prevalence of myopia poses a major public health challenge. Here, the CREAM consortium performs a joint meta-analysis to test single-nucleotide polymorphism (SNP) main effects and SNP × education interaction effects on refractive error in 40,036 adults from 25 studies of European ancestry and 10,315 adults from 9 studies of Asian ancestry. In European ancestry individuals, we identify six novel loci (FAM150B-ACP1, LINC00340, FBN1, DIS3L-MAP2K1, ARID2-SNAT1 and SLC14A2) associated with refractive error. In Asian populations, three genome-wide significant loci AREG…

0301 basic medicineRefractive errorgenetic structuresGeneral Physics and AstronomyGenome-wide association studyVARIANTSrefractive error ; geneEYEBioinformaticsINCIDENT MYOPIAGenome-wide association studiesSensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]0302 clinical medicinePolymorphism (computer science)10. No inequalityPOPULATIONeducation.field_of_studyMultidisciplinaryQACTIVATED PROTEIN-KINASEta3142single-nucleotide polymorphismRETINAL-PIGMENT EPITHELIUMOUTDOOR ACTIVITY3142 Public health care science environmental and occupational health3. Good healthRefractive errorsMeta-analysislociEducational StatusSciencePopulation610 Medicine & healthEnvironmentBiologyta3111Polymorphism Single NucleotideArticleWhite PeopleGeneral Biochemistry Genetics and Molecular BiologyEducation03 medical and health sciencesAsian PeopleSDG 3 - Good Health and Well-beingGenetic variationmedicineHumansSNPGenetic Predisposition to Diseasemyopia3125 Otorhinolaryngology ophthalmologyGenetic variationeducationRECEPTORGene Expression Profilingta1184General ChemistryHeritabilitymedicine.diseaseeye diseasesta3125TIME OUTDOORS030104 developmental biologyGenetic LociEvolutionary biologyRISK-FACTORS030221 ophthalmology & optometryREsense organs3111 BiomedicineGenome-Wide Association StudyNature Communications
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Haplotype reference consortium panel: Practical implications of imputations with large reference panels.

2017

Contains fulltext : 177754.pdf (Publisher’s version ) (Open Access) Recently, the Haplotype Reference Consortium (HRC) released a large imputation panel that allows more accurate imputation of genetic variants. In this study, we compared a set of directly assayed common and rare variants from an exome array to imputed genotypes, that is, 1000 genomes project (1000GP) and HRC. We showed that imputation using the HRC panel improved the concordance between assayed and imputed genotypes at common, and especially, low-frequency variants. Furthermore, we performed a genome-wide association meta-analysis of vertical cup-disc ratio, a highly heritable endophenotype of glaucoma, in four cohorts usin…

0301 basic medicineGenotypeConcordanceGenome-wide association study610 Medicine & healthBiologyPolymorphism Single NucleotideSensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]03 medical and health sciencesGene FrequencyGeneticsAssociation studies Imputation 1000 Genomes Project reference Panel Haplotype Reference Consortium Vertical cup-disc ratioHumansExome1000 Genomes Project610 Medicine & healthExomeAllele frequencyGenetics (clinical)Genetic associationGeneticsGenome HumanHaplotypeGenetic Variation030104 developmental biologyHaplotypesImputation (genetics)Genome-Wide Association Study
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A genome-wide association study of corneal astigmatism: The CREAM Consortium

2018

Contains fulltext : 191261.pdf (Publisher’s version ) (Open Access) Purpose: To identify genes and genetic markers associated with corneal astigmatism. Methods: A meta-analysis of genome-wide association studies (GWASs) of corneal astigmatism undertaken for 14 European ancestry (n=22,250) and 8 Asian ancestry (n=9,120) cohorts was performed by the Consortium for Refractive Error and Myopia. Cases were defined as having >0.75 diopters of corneal astigmatism. Subsequent gene-based and gene-set analyses of the meta-analyzed results of European ancestry cohorts were performed using VEGAS2 and MAGMA software. Additionally, estimates of single nucleotide polymorphism (SNP)-based heritability for …

0301 basic medicineReceptor Platelet-Derived Growth Factor alphaAcid PhosphataseGene Expression610 Medicine & healthbiomarkkeritPolymorphism Single NucleotideWhite PeopleSensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]Corneal DiseasesCohort StudiesCornea03 medical and health sciences0302 clinical medicineAsian PeopleOdds RatioHumansGenetic Predisposition to Disease610 Medicine & healthsarveiskalvogeenitIntracellular Signaling Peptides and ProteinsAstigmatism030104 developmental biologysilmätauditClaudinsgenetic markers030221 ophthalmology & optometrycorneal astigmatismSoftwaresilmätResearch ArticleGenome-Wide Association Study
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When do myopia genes have their effect? Comparison of genetic risks between children and adults

2016

Item does not contain fulltext Previous studies have identified many genetic loci for refractive error and myopia. We aimed to investigate the effect of these loci on ocular biometry as a function of age in children, adolescents, and adults. The study population consisted of three age groups identified from the international CREAM consortium: 5,490 individuals aged 25 years. All participants had undergone standard ophthalmic examination including measurements of axial length (AL) and corneal radius (CR). We examined the lead SNP at all 39 currently known genetic loci for refractive error identified from genome-wide association studies (GWAS), as well as a combined genetic risk score (GRS). …

0301 basic medicineAdultMalemedicine.medical_specialtyBiometryAdolescentGenotypeEpidemiologySingle-nucleotide polymorphismGenome-wide association studyBiologyPolymorphism Single NucleotideConnexinsSensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]03 medical and health sciencesYoung Adult0302 clinical medicineRisk FactorsInternal medicineGenotypemedicineMyopiaSNPHumansAlleleYoung adult610 Medicine & healthChildGenetics (clinical)AllelesGenetic associationGenetics030104 developmental biologyGenetic Loci030221 ophthalmology & optometryPopulation studyFemaleRELamininGenome-Wide Association Study
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Prevalence of Age-Related Macular Degeneration in Europe

2017

Manuscript no. 2016-1147 Supplemental material is available at www.aaojournal.org/; International audience; [u]Purpose:[/u] Age-related macular degeneration (AMD) is a frequent, complex disorder in elderly of European ancestry. Risk profiles and treatment options have changed considerably over the years, which may have affected disease prevalence and outcome. We determined the prevalence of early and late AMD in Europe from 1990 to 2013 using the European Eye Epidemiology (E3) consortium, and made projections for the future. [u]Design:[/u] Meta-analysis of prevalence data. [u]Participants:[/u] A total of 42 080 individuals 40 years of age and older participating in 14 population-based cohor…

0301 basic medicinemedicine.medical_specialtyVisual acuityOPTICAL COHERENCE TOMOGRAPHYMACULOPATHYgenetic structuresPopulationPrevalenceHEART-DISEASEchoroidal neovascularizationSensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]03 medical and health sciencesRotterdam Study0302 clinical medicineAll institutes and research themes of the Radboud University Medical CenterBEAVER DAM EYEEpidemiologygeographic atrophymedicineVISUAL IMPAIRMENT[SDV.MHEP.OS]Life Sciences [q-bio]/Human health and pathology/Sensory OrganseducationPOPULATIONeducation.field_of_studyBIRTH COHORTbusiness.industryMacular degenerationmedicine.diseaseTRENDSConfidence intervaleye diseases3. Good healthEuropean Prospective Investigation into Cancer and NutritionOphthalmology030104 developmental biologyAge-related Macular DegenerationENDOTHELIAL GROWTH-FACTORBLINDNESS030221 ophthalmology & optometryOptometryAge-related Macular Degeneration choroidal neovascularization geographic atrophysense organsmedicine.symptombusiness[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyDemography
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A large cross-ancestry meta-analysis of genome-wide association studies identifies 69 novel risk loci for primary open-angle glaucoma and includes a …

2020

AbstractWe conducted a large multi-ethnic meta-analysis of genome-wide association studies for primary open-angle glaucoma (POAG) on a total of 34,179 cases vs 349,321 controls, and identified 127 independent risk loci, almost doubling the number of known loci for POAG. The majority of loci have broadly consistent effect across European, Asian and African ancestries. We identify a link, both genome-wide and at specific loci, between POAG and Alzheimer’s disease. Gene expression data and bioinformatic functional analyses provide further support for the functional relevance of the POAG risk genes. Several drug compounds target these risk genes and may be potential candidates for developing no…

Genetics0303 health sciencesgenetic structuresOpen angle glaucomaGlaucomaGenome-wide association studyDiseaseBiologymedicine.diseaseeye diseases3. Good health03 medical and health sciences0302 clinical medicineMeta-analysismedicinesense organsGene030217 neurology & neurosurgery030304 developmental biologyGenetic association
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Evaluation of Shared Genetic Susceptibility to High and Low Myopia and Hyperopia

2021

Importance: Uncertainty currently exists about whether the same genetic variants are associated with susceptibility to low myopia (LM) and high myopia (HM) and to myopia and hyperopia. Addressing this question is fundamental to understanding the genetics of refractive error and has clinical relevance for genotype-based prediction of children at risk for HM and for identification of new therapeutic targets. Objective: To assess whether a common set of genetic variants are associated with susceptibility to HM, LM, and hyperopia. Design, Setting, and Participants: This genetic association study assessed unrelated UK Biobank participants 40 to 69 years of age of European and Asian ancestry. Par…

medicine.medical_specialtyRefractive errorgenetic structuresEmmetropiaGenome-wide association study01 natural sciences03 medical and health sciences0302 clinical medicineInternal medicinemedicineGenetic predispositionMyopiaHumansGenetic Predisposition to Disease0101 mathematicsAlleleChildGenetic associationOriginal Investigationbusiness.industry010102 general mathematicsOdds ratioHeritabilitymedicine.diseaseRefractive Errorseye diseases3. Good healthOphthalmologyHyperopia030221 ophthalmology & optometrybusinessGenome-Wide Association StudyJAMA Ophthalmology
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