Association of the Asn306Ser variant of the SP4 transcription factor and an intronic variant in the β-subunit of transducin with digenic disease
2007

Study of SP4 Gene Variants in Retinal Degeneration

Sample size: 270 publication Evidence: moderate

Author Information

Author(s): Gao Yong-Qing, Danciger Michael, Özgül Riza Köksal, Gribanova Yekaterina E., Jacobson Samuel G., Farber Debora B.

Primary Institution: Jules Stein Eye Institute, David Geffen School of Medicine at UCLA

Hypothesis

Are mutations in the SP4 gene associated with different forms of retinal degeneration?

Conclusion

Mutations in the SP4 gene may be involved in retinal degenerative diseases, but their frequency appears to be low.

Supporting Evidence

  • Nine different sequence variants were found in 29 patients.
  • The Asn306Ser mutation was found predominantly in Hispanic patients.
  • The study suggests a possible digenic inheritance involving SP4 and GNB1.

Takeaway

The researchers looked at a gene called SP4 in people with eye diseases and found some changes in the gene that might be linked to these diseases, especially in Hispanic patients.

Methodology

The study screened 270 patients for mutations in the SP4 gene using SSCP analysis and direct sequencing.

Limitations

The study could not definitively establish a causal relationship between SP4 mutations and retinal degeneration.

Participant Demographics

The cohort included 56% European, 17% Asian, 13% Black, and 14% Hispanic patients.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

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