Mutation in FRMD7 Causes Congenital Nystagmus in a Family
Author Information
Author(s): He Xiang, Gu Feng, Wang Yujing, Yan Jinting, Zhang Meng, Huang Shangzhi, Ma Xu
Primary Institution: National Research Institute for Family Planning, Beijing, China
Hypothesis
To identify the gene responsible for causing X-linked idiopathic congenital nystagmus in a six-generation Chinese family.
Conclusion
A novel mutation in FRMD7 was identified and confirmed to play a role in X-linked congenital nystagmus.
Supporting Evidence
- The mutation co-segregated with all affected individuals in the family.
- No mutation was detected in unaffected familial males or 400 control males.
- Affected individuals showed phenotypes consistent with X-linked idiopathic congenital nystagmus.
Takeaway
Scientists found a change in a gene that causes a vision problem called nystagmus in some family members.
Methodology
Genotyping and sequencing were performed on family members to identify mutations in the FRMD7 gene.
Limitations
The study focused on a single family, which may limit the generalizability of the findings.
Participant Demographics
The study involved a six-generation Chinese family with 49 members, including 15 affected individuals (5 males and 10 females).
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