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Is Primary Ciliary Dyskinesia Genetic?
- Heritability
- ~100%
- Inheritance
- autosomal-recessive
- Key genes
- DNAI1 DNAI2 DNAAF1
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Dysfunction of motile cilia causing recurrent respiratory infections and bronchiectasis. ~50% of patients have situs inversus (Kartagener syndrome).
How Genetic Is Primary Ciliary Dyskinesia?
Primary Ciliary Dyskinesia has a strong genetic basis. Research estimates heritability at approximately 100%, meaning genetic factors account for the majority of variation in whether individuals develop this condition.
Key genes associated with Primary Ciliary Dyskinesia: DNAI1 DNAI2 DNAAF1. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: MedlinePlus Genetics
Does Family History Matter for Primary Ciliary Dyskinesia?
Yes — family history is one of the strongest predictors of Primary Ciliary Dyskinesia. If a first-degree relative (parent, sibling, or child) has been diagnosed, your own risk may be significantly elevated. Discussing your family history with a healthcare provider or genetic counsellor is strongly recommended.
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