The association of single nucleotide polymorphisms in the 5'-regulatory region of the lumican gene with susceptibility to high myopia in Taiwan.
OBJECTIVE
To study the relationships between single nucleotide polymorphisms (SNPs) of lumican, decorin, and DSPG3 genes and high myopia.


METHODS
One hundred and twenty adult patients with high myopia (< -10.0 D) and 137 controls were used to study the relationships between the decorin, lumican, and DSPG genes and high myopia. All subjects were free of ocular diseases, other than myopia, as well as of other systemic genetic diseases. Genotyping was performed by direct sequencing after PCR amplification of chromosomal DNA. Allele frequencies were tested for Hardy-Weinberg disequilibrium. The chi(2) or Fisher test was conducted to investigate the genotypic and allelic distribution between the high myopia and control groups.


RESULTS
The genotyping success rate was 100%. Univariate analysis revealed significant differences between patients and control subjects with respect to one of the SNPs (rs3759223, C->T) of the lumican gene, with a p value of 0.000283. There was no significant relationship between other SNPs of lumican, decorin, and DSPG genes and high myopia.


CONCLUSIONS
Our results indicate that an SNP (rs3759223), which is located in the promoter region of the lumican gene, may be worth further investigation to determine its association with development of high myopia.
Wang
I-Jong
IJ
Department of Ophthalmology, College of Medicine, National Taiwan University, Taipei, Taiwan.
Chiang
Ting-Hsuan
TH
Shih
Yung-Feng
YF
Hsiao
Chuhsing Kate
CK
Lu
Shao-Chun
SC
Hou
Yi-Chih
YC
Lin
Luke Long-Kung
LL
D024506:5' Flanking Region; D000328:Adult; D044466:Asian People / Q000235:genetics*; D001483:Base Sequence; D016022:Case-Control Studies; D011508:Chondroitin Sulfate Proteoglycans / Q000235:genetics*; D058575:Decorin; D016326:Extracellular Matrix Proteins / Q000235:genetics; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007632:Keratan Sulfate / Q000235:genetics*; D000071234:Lumican; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D009216:Myopia / Q000235:genetics / Q000503:physiopathology*; D020641:Polymorphism, Single Nucleotide; D011401:Promoter Regions, Genetic; D011509:Proteoglycans / Q000235:genetics; D012720:Severity of Illness Index; D000071232:Small Leucine-Rich Proteoglycans; D013624:Taiwan
D011508:Chondroitin Sulfate Proteoglycans; C546878:DCN protein, human; D058575:Decorin; C119499:EPYC protein, human; D016326:Extracellular Matrix Proteins; C000604306:LUM protein, human; D000071234:Lumican; D011509:Proteoglycans; D000071232:Small Leucine-Rich Proteoglycans; D007632:Keratan Sulfate