Mutation in Fibrinogen Gene Causes Low Fibrinogen Levels
Author Information
Author(s): Qian Chen, Huang Chaoyu, Luo Qinghui, Qin Kaili, Wu Yangyang, Liao Lin, Zhang Qian, Xiang Liqun, Jie Yan
Primary Institution: The First Affiliated Hospital of Guangxi Medical University
Hypothesis
Does the p.Arg17Stop mutation in the fibrinogen Bβ chain affect fibrinogen synthesis and secretion?
Conclusion
The p.Arg17Stop mutation in the fibrinogen Bβ chain disrupts fibrinogen production and secretion, contributing to hypofibrinogenemia.
Supporting Evidence
- The mutation was identified in a three-month-old female infant with low fibrinogen levels.
- DNA sequencing revealed a heterozygous point mutation in the FGB gene.
- In vitro analyses showed that the mutation affects both transcription and translation of the FGB gene.
- Fibrinogen concentrations were significantly lower in mutant cells compared to wild-type cells.
Takeaway
A baby had a mutation that made her body unable to make enough of a protein called fibrinogen, which is important for blood clotting.
Methodology
Coagulation testing, gene analysis, in vitro plasmid construction, and functional analyses were conducted.
Limitations
The study is based on a single case, limiting the generalizability of the findings.
Participant Demographics
A three-month-old female infant.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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