Major intrinsic protein (MIP) polymorphism is associated with age-related cataract in Chinese
2011

MIP Gene Polymorphism and Age-Related Cataract in Chinese

Sample size: 296 publication Evidence: moderate

Author Information

Author(s): Zhou Zhou, Wang Binbin, Luo Yongfeng, Zhou Guangkai, Hu Shanshan, Zhang Han, Ma Xu, Qi Yanhua

Primary Institution: Second Affiliated Hospital of Harbin Medical University

Hypothesis

Is there a relationship between SNPs in the MIP gene and susceptibility to age-related cataract in a Chinese population?

Conclusion

The TC genotype in the c.-4T>C polymorphism and the CCG haplotype in MIP may increase the genetic risk for age-related cataract in the Chinese population.

Supporting Evidence

  • Patients with the TC genotype in c.-4T>C had a higher frequency compared to controls.
  • The haplotype CCG of rs2269348, c.-4T>C, and rs74641138 was significantly more common in ARC cases.
  • Statistical analysis showed significant differences in allele frequencies between cases and controls.

Takeaway

This study found that certain genetic changes in a lens protein gene might make people more likely to get cataracts as they age.

Methodology

A case-control study involving 164 ARC patients and 132 normal controls, with DNA extracted and SNPs analyzed using PCR and statistical methods.

Potential Biases

Potential selection bias in choosing control subjects from the same ethnic background.

Limitations

The study only included individuals from a specific region in China, which may limit the generalizability of the findings.

Participant Demographics

164 ARC patients (mean age 66.9 years, 64.7% female) and 132 controls (mean age 54.2 years, 67.7% female).

Statistical Information

P-Value

p=0.0018

Confidence Interval

95% CI=1.84–20.78

Statistical Significance

p<0.05

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