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Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs

BACKGROUND: Primary ciliary dyskinesia (PCD) is generally a recessively inherited disorder characterized by dysfunction of motile cilia. A mutation in a new causative gene (CCDC39) has been identified in the Old English Sheepdog (OES). OBJECTIVES: To describe the clinical findings and the molecular...

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Autores principales: Merveille, A.‐C., Battaille, G., Billen, F., Deleuze, S., Fredholm, M., Thomas, A., Clercx, C., Lequarré, A.‐S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4895470/
https://www.ncbi.nlm.nih.gov/pubmed/24773602
http://dx.doi.org/10.1111/jvim.12336
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author Merveille, A.‐C.
Battaille, G.
Billen, F.
Deleuze, S.
Fredholm, M.
Thomas, A.
Clercx, C.
Lequarré, A.‐S.
author_facet Merveille, A.‐C.
Battaille, G.
Billen, F.
Deleuze, S.
Fredholm, M.
Thomas, A.
Clercx, C.
Lequarré, A.‐S.
author_sort Merveille, A.‐C.
collection PubMed
description BACKGROUND: Primary ciliary dyskinesia (PCD) is generally a recessively inherited disorder characterized by dysfunction of motile cilia. A mutation in a new causative gene (CCDC39) has been identified in the Old English Sheepdog (OES). OBJECTIVES: To describe the clinical findings and the molecular changes of affected dogs and estimate the worldwide prevalence of the mutation in a large cohort of OES. ANIMALS: 578 OES, including 28 affected and 550 clinically healthy dogs. METHODS: This retrospective study reviewed the data of OES diagnosed with PCD and OES tested for the mutation. Clinical data including results of physical examination and further investigations were obtained on 11/28 dogs. CCDC39 expression was assessed by qRT‐PCR and Western blot analysis in affected dogs and healthy dogs. DNA was extracted on 561/578 dogs and a genetic test by Taqman technology was developed to genotype the CCDC39 mutation in these dogs. RESULTS: Clinical findings were recurrent nasal discharge and cough, pyrexia, leucocytosis, and bronchopneumonia. Ultrastructural defects were characterized by central microtubular abnormalities and decreased number of inner dynein arms (IDAs). Molecular analysis revealed a reduced expression of CCDC39 RNA and an absence of CCDC39 protein in affected dogs compared to healthy dogs. The mutation was more frequent in nonrandomly selected European OES population with a higher proportion of carriers (19%) compared to non‐European dogs (7%). CONCLUSION AND CLINICAL IMPORTANCE: CCDC39 mutation is dispersed in a worldwide population and is responsible for PCD in this breed. Genetic testing might enable control of this disease.
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spelling pubmed-48954702016-06-22 Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs Merveille, A.‐C. Battaille, G. Billen, F. Deleuze, S. Fredholm, M. Thomas, A. Clercx, C. Lequarré, A.‐S. J Vet Intern Med Standard Articles BACKGROUND: Primary ciliary dyskinesia (PCD) is generally a recessively inherited disorder characterized by dysfunction of motile cilia. A mutation in a new causative gene (CCDC39) has been identified in the Old English Sheepdog (OES). OBJECTIVES: To describe the clinical findings and the molecular changes of affected dogs and estimate the worldwide prevalence of the mutation in a large cohort of OES. ANIMALS: 578 OES, including 28 affected and 550 clinically healthy dogs. METHODS: This retrospective study reviewed the data of OES diagnosed with PCD and OES tested for the mutation. Clinical data including results of physical examination and further investigations were obtained on 11/28 dogs. CCDC39 expression was assessed by qRT‐PCR and Western blot analysis in affected dogs and healthy dogs. DNA was extracted on 561/578 dogs and a genetic test by Taqman technology was developed to genotype the CCDC39 mutation in these dogs. RESULTS: Clinical findings were recurrent nasal discharge and cough, pyrexia, leucocytosis, and bronchopneumonia. Ultrastructural defects were characterized by central microtubular abnormalities and decreased number of inner dynein arms (IDAs). Molecular analysis revealed a reduced expression of CCDC39 RNA and an absence of CCDC39 protein in affected dogs compared to healthy dogs. The mutation was more frequent in nonrandomly selected European OES population with a higher proportion of carriers (19%) compared to non‐European dogs (7%). CONCLUSION AND CLINICAL IMPORTANCE: CCDC39 mutation is dispersed in a worldwide population and is responsible for PCD in this breed. Genetic testing might enable control of this disease. John Wiley and Sons Inc. 2014-03-12 2014 /pmc/articles/PMC4895470/ /pubmed/24773602 http://dx.doi.org/10.1111/jvim.12336 Text en Copyright © 2014 by the American College of Veterinary Internal Medicine
spellingShingle Standard Articles
Merveille, A.‐C.
Battaille, G.
Billen, F.
Deleuze, S.
Fredholm, M.
Thomas, A.
Clercx, C.
Lequarré, A.‐S.
Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs
title Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs
title_full Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs
title_fullStr Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs
title_full_unstemmed Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs
title_short Clinical Findings and Prevalence of the Mutation Associated with Primary Ciliary Dyskinesia in Old English Sheepdogs
title_sort clinical findings and prevalence of the mutation associated with primary ciliary dyskinesia in old english sheepdogs
topic Standard Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4895470/
https://www.ncbi.nlm.nih.gov/pubmed/24773602
http://dx.doi.org/10.1111/jvim.12336
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