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The Association of MMP7 Genotype With Pterygium
Pei-Shin Hu1,2,3, Yun-Chi Wang3, Cheng-Hsi Liao1,3,4
1Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, R.O.C.
Background/Aim:
In literature, few studies have examined the diagnostic or prognostic potential of matrix metalloproteinases (MMP) in pterygium, whose formation and progression are closely related to imbalance in the extracellular microenvironment. In this study, we investigated the contribution of MMP7 promoter (A-181G and C-153T) polymorphic genotypes to pterygium risk.
Materials And Methods:
A total of 134 cases and 268 controls were collected and their MMP7 genotypes at A-181G and C-153T were examined by polymerase chain reaction-restriction fragment length polymorphism methodology.
Results:
The AA, AG and GG genotypes at MMP7 promoter A-181G were non-significantly differentially distributed between the two groups at 85.8, 11.2 and 3.0%, respectively, in pterygium cases and 88.4, 9.7 and 1.9% in controls, respectively (p for trend=0.6822). There was no polymorphic genotype for MMP7 C-153T among our Taiwanese cohort.
Conclusion:
A-181G and C-153T genotypes at MMP7 do not have a direct role in determining Taiwanese susceptibility to pterygium.
Insights
Matrix metalloproteinase-7 (MMP7) promoter genotypes A-181G and C-153T do not influence pterygium risk in Taiwanese individuals. This study found no significant association between these MMP7 genetic variations and pterygium susceptibility.
Area of Science:
- Ophthalmology
- Genetics
- Molecular Biology
Background:
- Pterygium formation is linked to extracellular matrix imbalance.
- Matrix metalloproteinases (MMPs) are implicated in pterygium pathogenesis.
- Limited research exists on MMPs' diagnostic or prognostic value in pterygium.
Purpose of the Study:
- To investigate the association between matrix metalloproteinase-7 (MMP7) promoter polymorphisms (A-181G and C-153T) and pterygium risk.
- To determine if specific MMP7 genotypes contribute to pterygium development in a Taiwanese population.
Main Methods:
- Case-control study involving 134 pterygium cases and 268 controls.
- Genotyping of MMP7 promoter A-181G and C-153T polymorphisms using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).
Main Results:
- No significant differential distribution of MMP7 A-181G genotypes (AA, AG, GG) was observed between pterygium cases and controls (p for trend=0.6822).
- No polymorphic genotypes for MMP7 C-153T were found in the Taiwanese cohort studied.
Conclusions:
- The studied MMP7 promoter genotypes (A-181G and C-153T) do not appear to play a direct role in determining susceptibility to pterygium in the Taiwanese population.
- Further research may be needed to explore other genetic or environmental factors contributing to pterygium development.
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