Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic review

Abstract Background Primary ciliary dyskinesia (PCD) represents a highly heterogenous disorder with extensive clinical and genetic patterns among populations of different geographic location and ethnic origin. However, data about Chinese patients are limited. We aimed to summarize the clinical and g...

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Main Authors: Bo Peng, Yong-hua Gao, Jia-qi Xie, Xiao-wen He, Cong-cong Wang, Jin-fu Xu, Guo-jun Zhang
Format: Article
Language:English
Published: BMC 2022-07-01
Series:Orphanet Journal of Rare Diseases
Subjects:
Online Access:https://doi.org/10.1186/s13023-022-02427-1
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author Bo Peng
Yong-hua Gao
Jia-qi Xie
Xiao-wen He
Cong-cong Wang
Jin-fu Xu
Guo-jun Zhang
author_facet Bo Peng
Yong-hua Gao
Jia-qi Xie
Xiao-wen He
Cong-cong Wang
Jin-fu Xu
Guo-jun Zhang
author_sort Bo Peng
collection DOAJ
description Abstract Background Primary ciliary dyskinesia (PCD) represents a highly heterogenous disorder with extensive clinical and genetic patterns among populations of different geographic location and ethnic origin. However, data about Chinese patients are limited. We aimed to summarize the clinical and genetic spectrum of Chinese PCD patients based on all available literatures. Methods We searched Embase, Pubmed, Web of Science and Chinese databases including CNKI, SinoMed and Wanfang from 1981 to 2021, to identify articles reporting patients with PCD in China, which had included information about transmission electron microscopy and/or genetic testing. Results A total of 244 Chinese PCD patients in 52 articles were included. Of these patients, the mean age was 13.1 years, and 55 patients (22.5%) were diagnosed with PCD after 18 years old. Compared with patients diagnosed with PCD in childhood or infancy, patients diagnosed with PCD in adulthood had a higher prevalence of chronic wet cough, sinusitis, Pseudomonas aeruginosa (PA) isolation and radiological bronchiectasis as well as worse lung function. 25 PCD-related genes were identified in 142 patients, and DNAH5, DNAH11, CCDC39 and CCDC40 were the most frequently detected mutations. More than half of genetic variants were loss-of-function mutations, and the majority of these variants were seen only once. Correlations between PCD phenotype, genotype and ciliary ultrastructure were also evidenced. Conclusions Diagnostic delay and under-recognition of PCD remain a big issue in China, which contributes to progressive lung disease and PA infection indicating worse outcome. Specialist equipment and expertise are urgently required to facilitate the early diagnosis and treatment of PCD. Trial registry PROSPERO; No.: CRD42021257804; URL: www.crd.york.ac.uk/prospero/
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spelling doaj.art-52685769bbeb4a109879cb73d2f915c52022-12-22T03:05:00ZengBMCOrphanet Journal of Rare Diseases1750-11722022-07-0117111210.1186/s13023-022-02427-1Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic reviewBo Peng0Yong-hua Gao1Jia-qi Xie2Xiao-wen He3Cong-cong Wang4Jin-fu Xu5Guo-jun Zhang6Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou UniversityDepartment of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of MedicineDepartment of Respiratory and Critical Care Medicine, Xiangyang Central HospitalDepartment of Respiratory and Critical Care Medicine, Xuchang Central HospitalDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou UniversityDepartment of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of MedicineDepartment of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou UniversityAbstract Background Primary ciliary dyskinesia (PCD) represents a highly heterogenous disorder with extensive clinical and genetic patterns among populations of different geographic location and ethnic origin. However, data about Chinese patients are limited. We aimed to summarize the clinical and genetic spectrum of Chinese PCD patients based on all available literatures. Methods We searched Embase, Pubmed, Web of Science and Chinese databases including CNKI, SinoMed and Wanfang from 1981 to 2021, to identify articles reporting patients with PCD in China, which had included information about transmission electron microscopy and/or genetic testing. Results A total of 244 Chinese PCD patients in 52 articles were included. Of these patients, the mean age was 13.1 years, and 55 patients (22.5%) were diagnosed with PCD after 18 years old. Compared with patients diagnosed with PCD in childhood or infancy, patients diagnosed with PCD in adulthood had a higher prevalence of chronic wet cough, sinusitis, Pseudomonas aeruginosa (PA) isolation and radiological bronchiectasis as well as worse lung function. 25 PCD-related genes were identified in 142 patients, and DNAH5, DNAH11, CCDC39 and CCDC40 were the most frequently detected mutations. More than half of genetic variants were loss-of-function mutations, and the majority of these variants were seen only once. Correlations between PCD phenotype, genotype and ciliary ultrastructure were also evidenced. Conclusions Diagnostic delay and under-recognition of PCD remain a big issue in China, which contributes to progressive lung disease and PA infection indicating worse outcome. Specialist equipment and expertise are urgently required to facilitate the early diagnosis and treatment of PCD. Trial registry PROSPERO; No.: CRD42021257804; URL: www.crd.york.ac.uk/prospero/https://doi.org/10.1186/s13023-022-02427-1PCDSystematic reviewGenotypePhenotypeCilia
spellingShingle Bo Peng
Yong-hua Gao
Jia-qi Xie
Xiao-wen He
Cong-cong Wang
Jin-fu Xu
Guo-jun Zhang
Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic review
Orphanet Journal of Rare Diseases
PCD
Systematic review
Genotype
Phenotype
Cilia
title Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic review
title_full Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic review
title_fullStr Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic review
title_full_unstemmed Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic review
title_short Clinical and genetic spectrum of primary ciliary dyskinesia in Chinese patients: a systematic review
title_sort clinical and genetic spectrum of primary ciliary dyskinesia in chinese patients a systematic review
topic PCD
Systematic review
Genotype
Phenotype
Cilia
url https://doi.org/10.1186/s13023-022-02427-1
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