APOE Gene and Age-Related Macular Degeneration in Chinese People
Author Information
Author(s): Sun Erdan, Lim Apiradee, Liu Xipu, Snellingen Torkel, Wang Ningli, Liu Ningpu
Primary Institution: Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
Hypothesis
Is there an association between apolipoprotein E (APOE) polymorphisms and age-related macular degeneration (AMD) in a Chinese population?
Conclusion
The study found no evidence to support an association of APOE polymorphisms with early or exudative AMD in the Chinese population.
Supporting Evidence
- The APOE ε3ε3 genotype was the most frequent among all groups.
- No significant differences in APOE genotype and allele frequencies were found between controls and AMD cases.
- The study included a comprehensive ophthalmological examination for all subjects.
Takeaway
The study looked at whether a gene called APOE affects the risk of a vision problem called AMD in older Chinese people, and it found that it doesn't seem to have an effect.
Methodology
The study analyzed genomic DNA from 712 subjects, including controls and cases with early and exudative AMD, using PCR and direct sequencing.
Limitations
The study may not have detected a weak association due to the lower frequency of the APOE ε4 allele in the Chinese population compared to Caucasians.
Participant Demographics
Participants included 201 controls, 363 cases with early AMD, and 148 cases with exudative AMD, aged 50 years or older.
Statistical Information
P-Value
0.885
Confidence Interval
95% CI, 0.65–1.93 for early AMD; 95% CI, 0.53–2.10 for exudative AMD.
Statistical Significance
p<0.05
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