Abstract:
BACKGROUND:Cilia line the surface of the respiratory tract and beat in a coordinated wave to protect the lungs against infection. Bardet Biedl Syndrome (BBS) is a rare condition attributed to cilia dysfunction. Murine models of BBS suggest a respiratory phenotype; however, no reports have studied the translation of these findings in patients. METHODS:We assessed the clinical symptoms of motile cilia dysfunction and the histology of ciliated respiratory epithelium in patients with BBS. RESULTS:We report an increased prevalence of neonatal respiratory distress at birth (12%), general practitioner-diagnosed asthma (21%), otitis media (33%), and rhinitis (36%) in patients with BBS. These symptoms, however, occurred at a significantly reduced prevalence compared with patients with known motile cilia dysfunction (primary ciliary dyskinesia). Respiratory epithelial assessment revealed cellular damage, significant ciliary depletion (on 60% of ciliated cells), and goblet cell hyperplasia in patients with BBS (50% goblet cells). These findings were quantifiably similar to those of patients with asthma (P > .05). Surprisingly, motile cilia function and ultrastructure were grossly normal with the exception of occasional unique inclusions within the ciliary membrane. CONCLUSIONS:In conclusion, motile ciliary structure and function are essentially normal in patients with BBS.
journal_name
Chestjournal_title
Chestauthors
Shoemark A,Dixon M,Beales PL,Hogg CLdoi
10.1378/chest.13-2913subject
Has Abstractpub_date
2015-03-01 00:00:00pages
764-770issue
3eissn
0012-3692issn
1931-3543pii
S0012-3692(15)39674-4journal_volume
147pub_type
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