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Central corneal thickness is a genetic dependent trait among inbred strains of mice

ABSTRACT: Central corneal thickness (CCT) exhibits broad variability. We determined the corneal gene expression profile three mouse strains with distinct corneal thickness: C57BLKS/J (88.6 um), SJL/J (123.5 um), and C57BL/6J (100.1 um). Keywords: Strain comparison

ORGANISM(S): Mus musculus

PROVIDER: GSE14270 | GEO | 2009/09/01

SECONDARY ACCESSION(S): PRJNA111235

REPOSITORIES: GEO

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Project description:The Ocular Hypertension Treatment Study (OHTS) is an National Eye Institute-sponsored multi-center, randomized, prospective treatment trial designed to determine whether lowering intraocular pressure (IOP) in individuals with ocular hypertension delays or prevents the development of primary open angle glaucoma (POAG). A total of 1,636 individuals with ocular hypertension between 40 and 80 years old were enrolled in the study. In addition to ocular hypertension, subjects in the OHTS were required to have normal optic nerve appearance as determined by the OHTS Optic Disc Reading Center and normal and reliable visual field tests at the time of enrollment by the OHTS Visual Field Reading Center. OHTS subjects were randomly assigned to either an observational group which received close observation or a topical medication group which received medication as needed to achieve a 20% reduction in IOP from their baseline levels. Subjects then were examined at regular intervals for optic disc cupping or visual field defects. Other clinical measures were also obtained from OHTS subjects including central corneal thickness (CCT) and intraocular pressure. The primary outcome monitored for the OHTS was the development of glaucoma in one or both eyes as defined by reproducible visual field abnormality or reproducible optic disc deterioration attributed to POAG by the masked OHTS Endpoint Committee. The OHTS study design has been reported in detail (Gordon, 1999; PMID: <a href="http://www.ncbi.nlm.nih.gov/pubmed/10326953" target="_blank">10326953</a>). The OHTS confirmed that ocular hypertension is a risk factor for developing POAG and showed that lowering IOP reduced the risk for developing POAG (Kass, 2002; PMID: <a href="http://www.ncbi.nlm.nih.gov/pubmed/12049574" target="_blank">12049574</a>). The OHTS also demonstrated that thin CCT is a significant risk factor for the development of POAG (Gordon, 2002; PMID: <a href="http://www.ncbi.nlm.nih.gov/pubmed/12049575" target="_blank">12049575</a>). Blood samples were also collected from 1,077 OHTS participants for an ancillary genetics study. DNA was prepared from these samples and used in a genome-wide association scan (GWAS) designed to identify genetic factors that control the magnitude of quantitative features of glaucoma (baseline IOP, baseline cup-to-disc ratio, and CCT). Genotypes from the GWAS and these clinical data (IOP, cup-to-disc ratio, and CCT) have been provided to dbGaP.

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Central corneal thickness is a genetic dependent trait among inbred strains of mice

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