TGFbeta-induced factor: a candidate gene for high myopia
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Updated: Sep 27, 2026

Inducement and Evaluation of a Murine Model of Experimental Myopia
Published on: January 22, 2019
Dennis Shun Chiu Lam1, Wing Shan Lee, Yuk Fai Leung
1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong.
Purpose:
To investigate the coding exons of transforming growth factor (TGF)-beta-induced factor (TGIF) for mutations in Chinese patients with high myopia.
Methods:
Seventy-one individuals with high myopia of -6.00 D or less and 105 control subjects were screened by DNA sequencing for sequence alterations. Univariate analysis and logistic regression were performed to identify single-nucleotide polymorphisms (SNPs) and their interactions in TGIF that may be associated with myopia.
Results:
Six SNPs showed a significant difference (P < 0.05) between patient and control subject in univariate analysis. Four of them cause codon changes: G223R, G231S, P241T, and A262G. Among all the SNPs that entered multivariate analysis, only 657(T-->G) showed statistical significance in the logistic regression model (odds ratio 0.133; 95% confidence interval 0.037-0.488; P = 0.002).
Conclusions:
TGIF is a probable candidate gene for high myopia. Further studies are needed to identify the underlying mechanism.
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