Genetic Epidemiology, Translational Neurogenomics, Psychiatric Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
17964656
TITLE
Genetic dissection of myopia: evidence for linkage of ocular axial length to chromosome 5q.
ABSTRACT
PURPOSE NlmCategory: OBJECTIVE
To estimate heritability and locate quantitative trait loci influencing axial length.
DESIGN NlmCategory: METHODS
Classic twin study of monozygotic and dizygotic twins reared together.
PARTICIPANTS NlmCategory: METHODS
Eight hundred ninety-three individuals from 460 families were recruited through the Twin Eye Study in Tasmania and the Brisbane Adolescent Twin Study (BATS) and had ocular axial length measured.
METHODS NlmCategory: METHODS
Structural equation modeling on the entire sample was used to estimate genetic and environmental components of variation in axial length. Analysis of existing microsatellite marker genomewide linkage scan data was performed on 318 individuals from 142 BATS families.
MAIN OUTCOME MEASURE NlmCategory: METHODS
Ocular axial length.
RESULTS NlmCategory: RESULTS
The heritability estimate for axial length, adjusted for age and sex, in the full sample was 0.81. The highest multipoint logarithm of the odds (LOD) score observed was 3.40 (genomewide P = 0.0004), on chromosome 5q (at 98 centimorgans [cM]). Additional regions with suggestive multipoint LOD scores were also identified on chromosome 6 (LOD scores, 2.13 at 76 cM and 2.05 at 83 cM), chromosome 10 (LOD score, 2.03 at 131 cM), and chromosome 14 (LOD score, 2.84 at 97 cM).
CONCLUSION NlmCategory: CONCLUSIONS
Axial length, a major endophenotype for refractive error, is highly heritable and is likely to be influenced by one or more genes on the long arm of chromosome 5.
DATE PUBLISHED
2008 Jun
HISTORY
PUBSTATUS PUBSTATUSDATE
received 2007/04/10
revised 2007/08/07
accepted 2007/08/09
aheadofprint 2007/10/26
pubmed 2007/10/30 09:00
medline 2008/06/13 09:00
entrez 2007/10/30 09:00
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
Zhu G Zhu Gu G Genetic Epidemiology Unit, Queensland Institute of Medical Research, Brisbane, Australia. D.Mackey@utas.edu.au
Hewitt AW Hewitt Alex W AW
Ruddle JB Ruddle Jonathan B JB
Kearns LS Kearns Lisa S LS
Brown SA Brown Shayne A SA
Mackinnon JR Mackinnon Jane R JR
Chen CY Chen Christine Y CY
Hammond CJ Hammond Christopher J CJ
Craig JE Craig Jamie E JE
Montgomery GW Montgomery Grant W GW
Martin NG Martin Nicholas G NG
Mackey DA Mackey David A DA
INVESTIGATORS
JOURNAL
VOLUME: 115
ISSUE: 6
TITLE: Ophthalmology
ISOABBREVIATION: Ophthalmology
YEAR: 2008
MONTH: Jun
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Internet
ISSN: 1549-4713
ISSNTYPE: Electronic
MEDLINE JOURNAL
MEDLINETA: Ophthalmology
COUNTRY: United States
ISSNLINKING: 0161-6420
NLMUNIQUEID: 7802443
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Twin Study
COMMENTS AND CORRECTIONS
GRANTS
GRANTID AGENCY COUNTRY
CA88363 NCI NIH HHS United States
N01-HG-65403 NHGRI NIH HHS United States
GENERAL NOTE
KEYWORDS
MESH HEADINGS
DESCRIPTORNAME QUALIFIERNAME
Adolescent
Adult
Aged
Aged, 80 and over
Child
Child, Preschool
Chromosomes, Human, Pair 5 genetics
Diseases in Twins genetics
Eye pathology
Female pathology
Genetic Linkage pathology
Genotype pathology
Humans pathology
Lod Score pathology
Male pathology
Microsatellite Repeats pathology
Middle Aged pathology
Myopia genetics
Quantitative Trait Loci genetics
Quantitative Trait, Heritable genetics
Twins, Dizygotic genetics
Twins, Monozygotic genetics
SUPPLEMENTARY MESH
GENE SYMBOLS
CHEMICALS
OTHER ID's