[Analysis of a patient with primary ciliary dyskinesia caused by DNAH5 variants].

OBJECTIVE

To explore the genetic basis for a patient with primary ciliary dyskinesia (PCD).

METHODS

High-throughput sequencing and bioinformatic analysis were carried out to identify pathogenic variant in the patient. Suspected variant was verified by Sanger sequencing among the family members, and intracytoplasmic sperm injection (ICSI) was used to achieve the pregnancy.

RESULTS

The patient had obstructive azoospermia, measurement of nasal NO exhalation at 84 ppb, and typical symptoms of PCD in nasal sinuses and lungs. DNA sequencing showed that he had carried biallelic variants of the DNAH5 gene, namely c.1489C>T (p.Q497X) in exon 11 and c.6304C>T (p.R2102C) in exon 38. His wife achieved clinical pregnancy with the assistance of ICSI.

CONCLUSION

Above finding has enriched the spectrum of DNAH5 gene variants, though the latters did not affect the outcome of pregnancy by ICSI.