1
|
Evaluation and Management of Asthma and Chronic Obstructive Pulmonary Disease Exacerbation in the Emergency Department. Emerg Med Clin North Am 2022; 40:539-563. [DOI: 10.1016/j.emc.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
2
|
Lee HW, Sim YS, Jung JY, Seo H, Park JW, Min KH, Lee JH, Kim BK, Lee MG, Oh YM, Ra SW, Kim TH, Hwang YI, Rhee CK, Joo H, Lee EG, Lee JH, Park HY, Kim WJ, Um SJ, Choi JY, Lee CH, An TJ, Park Y, Yoon YS, Park JH, Yoo KH, Kim DK. A Multicenter Study to Identify the Respiratory Pathogens Associated with Exacerbation of Chronic Obstructive Pulmonary Disease in Korea. Tuberc Respir Dis (Seoul) 2022; 85:37-46. [PMID: 34666427 PMCID: PMC8743635 DOI: 10.4046/trd.2021.0080] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/16/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Although respiratory tract infection is one of the most important factors triggering acute exacerbation of chronic obstructive pulmonary disease (AE-COPD), limited data are available to suggest an epidemiologic pattern of microbiology in South Korea. METHODS A multicenter observational study was conducted between January 2015 and December 2018 across 28 hospitals in South Korea. Adult patients with moderate-to-severe acute exacerbations of COPD were eligible to participate in the present study. The participants underwent all conventional tests to identify etiology of microbial pathogenesis. The primary outcome was the percentage of different microbiological pathogens causing AE-COPD. A comparative microbiological analysis of the patients with overlapping asthma-COPD (ACO) and pure COPD was performed. RESULTS We included 1,186 patients with AE-COPD. Patients with pure COPD constituted 87.9% and those with ACO accounted for 12.1%. Nearly half of the patients used an inhaled corticosteroid-containing regimen and one-fifth used systemic corticosteroids. Respiratory pathogens were found in 55.3% of all such patients. Bacteria and viruses were detected in 33% and 33.2%, respectively. Bacterial and viral coinfections were found in 10.9%. The most frequently detected bacteria were Pseudomonas aeruginosa (9.8%), and the most frequently detected virus was influenza A (10.4%). Multiple bacterial infections were more likely to appear in ACO than in pure COPD (8.3% vs. 3.6%, p=0.016). CONCLUSION Distinct microbiological patterns were identified in patients with moderate-to-severe AE-COPD in South Korea. These findings may improve evidence-based management of patients with AE-COPD and represent the basis for further studies investigating infectious pathogens in patients with COPD.
Collapse
Affiliation(s)
- Hyun Woo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yun Su Sim
- Division of Pulmonary, Allergy and Critical Care Medicine, Kangnam Sacred Heart Hospital, Seoul, Republic of Korea
| | - Ji Ye Jung
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyewon Seo
- Department of Internal Medicine, School of Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Jeong-Woong Park
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Kyung Hoon Min
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jae Ha Lee
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Byung-Keun Kim
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Myung Goo Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Yeon-Mok Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seung Won Ra
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Tae-Hyung Kim
- Division of Pulmonary and Critical Care Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Yong il Hwang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea
| | - Chin Kook Rhee
- Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyonsoo Joo
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eung Gu Lee
- Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Jin Hwa Lee
- Department of Internal Medicine, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul, Republic of Korea
| | - Hye Yun Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Woo Jin Kim
- Department of Internal Medicine and Environmental Health Center, Kangwon National University College of Medicine, Chuncheon, Republic of Korea
| | - Soo-Jung Um
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Joon Young Choi
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang-Hoon Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Tai Joon An
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yeonhee Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young-Soon Yoon
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Joo Hun Park
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Kwang Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Republic of Korea
- Address for correspondence: Kwang Ha Yoo, M.D., Ph.D. Department of Internal Medicine, Konkuk University Hospital, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 05030, Republic of Korea Phone: 82-2-2030-7522, Fax: 82-2-2030-7458, E-mail:
| | - Deog Kyeom Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Address for correspondence: Deog Kyeom Kim, M.D., Ph.D. Division of Respiratory and Critical Care, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, 20 Boramae-ro-5-gil, Dongjak-gu, Seoul 07061, Republic of Korea Phone: 82-2-870-2228, Fax: 82-2-870-7378, E-mail:
| |
Collapse
|
3
|
D’Anna SE, Maniscalco M, Cappello F, Carone M, Motta A, Balbi B, Ricciardolo FLM, Caramori G, Di Stefano A. Bacterial and viral infections and related inflammatory responses in chronic obstructive pulmonary disease. Ann Med 2021; 53:135-150. [PMID: 32997525 PMCID: PMC7877965 DOI: 10.1080/07853890.2020.1831050] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/25/2020] [Indexed: 12/24/2022] Open
Abstract
In chronic obstructive pulmonary disease (COPD) patients, bacterial and viral infections play a relevant role in worsening lung function and, therefore, favour disease progression. The inflammatory response to lung infections may become a specific indication of the bacterial and viral infections. We here review data on the bacterial-viral infections and related airways and lung parenchyma inflammation in stable and exacerbated COPD, focussing our attention on the prevalent molecular pathways in these different clinical conditions. The roles of macrophages, autophagy and NETosis are also briefly discussed in the context of lung infections in COPD. Controlling their combined response may restore a balanced lung homeostasis, reducing the risk of lung function decline. KEY MESSAGE Bacteria and viruses can influence the responses of the innate and adaptive immune system in the lung of chronic obstructive pulmonary disease (COPD) patients. The relationship between viruses and bacterial colonization, and the consequences of the imbalance of these components can modulate the inflammatory state of the COPD lung. The complex actions involving immune trigger cells, which activate innate and cell-mediated inflammatory responses, could be responsible for the clinical consequences of irreversible airflow limitation, lung remodelling and emphysema in COPD patients.
Collapse
Affiliation(s)
| | - Mauro Maniscalco
- Divisione di Pneumologia, Istituti Clinici Scientifici Maugeri, IRCCS, Telese, Italy
| | - Francesco Cappello
- Dipartimento di Biomedicina, Neuroscienze e Diagnostica avanzata (BIND), Istituto di Anatomia Umana e Istologia Università degli Studi di Palermo, Palermo, Italy
- Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy
| | - Mauro Carone
- UOC Pulmonology and Pulmonary Rehabilitation, Istituti Clinici Scientifici Maugeri, IRCCS di Bari, Bari, Italy
| | - Andrea Motta
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Bruno Balbi
- Divisione di Pneumologia e Laboratorio di Citoimmunopatologia dell’Apparato Cardio Respiratorio, Istituti Clinici Scientifici Maugeri, IRCCS, Veruno, Italy
| | - Fabio L. M. Ricciardolo
- Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, AOU San Luigi Gonzaga, Torino, Italy
| | - Gaetano Caramori
- Pneumologia, Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini morfologiche e funzionali (BIOMORF), Università degli studi di Messina, Italy
| | - Antonino Di Stefano
- Divisione di Pneumologia e Laboratorio di Citoimmunopatologia dell’Apparato Cardio Respiratorio, Istituti Clinici Scientifici Maugeri, IRCCS, Veruno, Italy
| |
Collapse
|
4
|
Jahan R, Mishra B, Behera B, Mohapatra PR, Praharaj AK. Study of respiratory viruses and their coinfection with bacterial and fungal pathogens in acute exacerbation of chronic obstructive pulmonary diseases. Lung India 2021; 38:53-58. [PMID: 33402638 PMCID: PMC8066933 DOI: 10.4103/lungindia.lungindia_273_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: Patients with chronic obstructive pulmonary disease (COPD) develop acute exacerbations (AE), with varying natural history. The exacerbation is triggered by infection, leading to increased morbidity and mortality. The study on infectious aetiology of AECOPD is largely restricted to only viral or only bacterial aetiology. There are no studies from India that have investigated multiple viral, bacterial, and fungal associations from the same group of patients. This prospective study was conducted over 2 years to estimate the incidence and profile of viral infections in AECOPD patients, their coinfection with other bacterial and fungal agents, and association of the type and pattern of infective agent with the clinical severity. Materials and Methods: Seventy-four AECOPD cases were included in the study. Multiplex polymerase chain reaction was performed from nasopharyngeal swab using Fast Track Diagnostics Respiratory Pathogens 21 Plus Kit. Ziehl–Neelsen (ZN) stain, Modified ZN, and potassium hydroxide (KOH) mount were performed for Mycobacteria, Nocardia, and fungal elements. Bacterial cultures and fungal cultures were done as per the standard techniques. Serum samples were tested for Mycoplasma and Chlamydia pneumoniae immunoglobulin M enzyme-linked immunosorbent assay. Results: The number of AECOPD events involving only viral infection, only bacterial infection, bacterial–viral coinfection, and no infection were 43 (58.1%), 32 (43.2%), 20 (27%), and 19 (25.7%), respectively. Influenza A virus was the most common virus (22/43, 51%) identified. In 26 patients, monoviral infections were found, and in 17 patients, polyviral infections were identified, the most common pattern being influenza A and B virus, followed by human rhinovirus and human parainfluenza. The most common bacteria isolated were Pseudomonas aeruginosa (9/32,28%) followed by Acinetobacter baumanii and Klebsiella pneumoniae (7/32, 21%). Among the viral–bacterial coinfection, human coronavirus NL63 infection was always associated with a bacterial infection. Conclusion: This information on the various viral and bacterial etiologies of respiratory infections in AECOPD in this part of India will improve the understanding of the management of AECOPD using a timely institution of antivirals and reduce the overuse of antibiotics and the implementation of routine influenza vaccination.
Collapse
Affiliation(s)
- Rahat Jahan
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Baijayantimala Mishra
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Bijayini Behera
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Prasanta Raghab Mohapatra
- Department of Pulmonary Medicine, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Ashok Kumar Praharaj
- Department of Microbiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| |
Collapse
|
5
|
Zlateva KT, van Rijn AL, Simmonds P, Coenjaerts FEJ, van Loon AM, Verheij TJM, de Vries JJC, Little P, Butler CC, van Zwet EW, Goossens H, Ieven M, Claas ECJ. Molecular epidemiology and clinical impact of rhinovirus infections in adults during three epidemic seasons in 11 European countries (2007-2010). Thorax 2020; 75:882-890. [PMID: 32820081 PMCID: PMC7509388 DOI: 10.1136/thoraxjnl-2019-214317] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 04/14/2020] [Accepted: 06/18/2020] [Indexed: 12/21/2022]
Abstract
Background Differences in clinical impact between rhinovirus (RVs) species and types in adults are not well established. The objective of this study was to determine the epidemiology and clinical impact of the different RV species. Methods We conducted a prospective study of RVs infections in adults with acute cough/lower respiratory tract infection (LRTI) and asymptomatic controls. Subjects were recruited from 16 primary care networks located in 11 European countries between 2007 and 2010. RV detection and genotyping was performed by means of real time and conventional reverse-transcriptase polymerase chain reaction assays, followed by sequence analysis. Clinical data were obtained from medical records and patient symptom diaries. Results RVs were detected in 566 (19%) of 3016 symptomatic adults, 102 (4%) of their 2539 follow-up samples and 67 (4%) of 1677 asymptomatic controls. Genotyping was successful for 538 (95%) symptomatic subjects, 86 (84%) follow-up infections and 62 (93%) controls. RV-A was the prevailing species, associated with an increased risk of LRTI as compared with RV-B (relative risk (RR), 4.5; 95% CI 2.5 to 7.9; p<0.001) and RV-C (RR 2.2; 95% CI 1.2 to 3.9; p=0.010). In symptomatic subjects, RV-A loads were higher than those of RV-B (p=0.015). Symptom scores and duration were similar across species. More RV-A infected patients felt generally unwell in comparison to RV-C (p=0·023). Of the 140 RV types identified, five were new types; asymptomatic infections were associated with multiple types. Interpretation In adults, RV-A is significantly more often detected in cases with acute cough/LRTI than RV-C, while RV-B infection is often found in asymptomatic patients.
Collapse
Affiliation(s)
- Kalina T Zlateva
- Medical Microbiology, Leiden Universitair Medisch Centrum, Leiden, The Netherlands
| | - Anneloes L van Rijn
- Medical Microbiology, Leiden Universitair Medisch Centrum, Leiden, The Netherlands
| | - Peter Simmonds
- Infection and Immunity Division, University of Edinburgh, Edinburgh, UK
| | - Frank E J Coenjaerts
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Anton M van Loon
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Theo J M Verheij
- Department of Data Management, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jutte J C de Vries
- Medical Microbiology, Leiden Universitair Medisch Centrum, Leiden, The Netherlands
| | - Paul Little
- Primary Care and Population Science, University of Southampton, Southampton, UK
| | | | - Erik W van Zwet
- Department of Medical Statistics, Leiden University Medical Center, Leiden, The Netherlands
| | - Herman Goossens
- Department of Medical Microbiology, Vaccine & Infectious Diseases Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - Margareta Ieven
- Department of Medical Microbiology, Vaccine & Infectious Diseases Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - Eric C J Claas
- Medical Microbiology, Leiden Universitair Medisch Centrum, Leiden, The Netherlands
| | | |
Collapse
|
6
|
Feddema JJ, Claassen E. Prevalence of viral respiratory infections amongst asthmatics: Results of a meta-regression analysis. Respir Med 2020; 173:106020. [PMID: 33190740 DOI: 10.1016/j.rmed.2020.106020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 04/29/2020] [Accepted: 05/10/2020] [Indexed: 12/30/2022]
Abstract
Viral respiratory infections (VRI) can act as triggers for acute asthma exacerbations and contribute significantly to asthma-related healthcare costs. Knowing the patterns of viruses amongst asthmatics can be useful in treating and preventing these exacerbations and help decrease the burden they impose on patients and healthcare systems. We aimed to quantify the viral prevalence in asthmatics presenting with exacerbations and identify influencing factors. A meta-analysis with a systematic search was conducted. Random-effect analysis was performed to quantify prevalence of viruses. A meta-regression was conducted to explain sources of heterogeneity and identify confounding factors. A VRI was detected in 52%-65% of the cases, and the detection rate was higher in children compared to adults. Rhinovirus was most often detected [51-71%], followed by respiratory syncytial virus [8-18%], influenza virus [7-15%], human parainfluenza virus [4-11%] and metapneumovirus virus [3-9%]. Meta-regression showed that the variables age and hemisphere contributed to the heterogeneity observed and were significantly associated with the detection of viruses in asthmatics. The climate variable reached significance for RSV and indicated a higher detection rate of viruses in asthmatics living in temperate compared to tropical regions. Besides age, geographic location and related variables significantly influence to what extent respiratory viruses are detected amongst asthmatics with exacerbations. Our results indicate that health authorities should adopt region- and population specific prevention and treatment strategies. Prevention and detection of viral respiratory infections in asthmatics could reduce asthma related disease burden and decrease antibiotic misuse.
Collapse
Affiliation(s)
- J J Feddema
- Vrije Universiteit Amsterdam, Athena Institute, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands.
| | - E Claassen
- Vrije Universiteit Amsterdam, Athena Institute, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands
| |
Collapse
|
7
|
Kefala AM, Fortescue R, Alimani GS, Kanavidis P, McDonnell MJ, Magiorkinis E, Megremis S, Paraskevis D, Voyiatzaki C, Mathioudakis GA, Papageorgiou E, Papadopoulos NG, Vestbo J, Beloukas A, Mathioudakis AG. Prevalence and clinical implications of respiratory viruses in stable chronic obstructive pulmonary disease (COPD) and exacerbations: a systematic review and meta-analysis protocol. BMJ Open 2020; 10:e035640. [PMID: 32269027 PMCID: PMC7170624 DOI: 10.1136/bmjopen-2019-035640] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Both stable chronic obstructive pulmonary disease (COPD) and acute exacerbations represent leading causes of death, disability and healthcare expenditure. They are complex, heterogeneous and their mechanisms are poorly understood. The role of respiratory viruses has been studied extensively but is still not adequately addressed clinically. Through a rigorous evidence update, we aim to define the prevalence and clinical burden of the different respiratory viruses in stable COPD and exacerbations, and to investigate whether viral load of usual respiratory viruses could be used for diagnosis of exacerbations triggered by viruses, which are currently not diagnosed or treated aetiologically. METHODS AND ANALYSIS Based on a prospectively registered protocol, we will systematically review the literature using standard methods recommended by the Cochrane Collaboration and the Grading of Recommendations Assessment, Development and Evaluation working group. We will search Medline/PubMed, Excerpta Medica dataBASE (EMBASE), the Cochrane Library, the WHO's Clinical Trials Registry and the proceedings of relevant international conferences on 2 March 2020. We will evaluate: (A) the prevalence of respiratory viruses in stable COPD and exacerbations, (B) differences in the viral loads of respiratory viruses in stable COPD vs exacerbations, to explore whether the viral load of prevalent respiratory viruses could be used as a diagnostic biomarker for exacerbations triggered by viruses and (C) the association between the presence of respiratory viruses and clinical outcomes in stable COPD and in exacerbations. ETHICS AND DISSEMINATION Ethics approval is not required since no primary data will be collected. Our findings will be presented in national and international scientific conferences and will be published in peer reviewed journals. Respiratory viruses currently represent a lost opportunity to improve the outcomes of both stable COPD and exacerbations. Our work aspires to 'demystify' the prevalence and clinical burden of viruses in stable COPD and exacerbations and to promote clinical and translational research. PROSPERO REGISTRATION NUMBER CRD42019147658.
Collapse
Affiliation(s)
- Anastasia M Kefala
- Department of Biomedical Sciences, University of West Attica, Egaleo, Greece
| | - Rebecca Fortescue
- Cochrane Airways, Population Health Research Institute, University of London Saint George's, London, UK
| | - Gioulinta S Alimani
- Department of Biomedical Sciences, University of West Attica, Egaleo, Greece
- Athens Breath Centre, Athens, Greece
| | - Prodromos Kanavidis
- First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Emmanouil Magiorkinis
- Department of Biomedical Sciences, University of West Attica, Egaleo, Greece
- Department of Laboratory Haematology, Sotiria Regional Chest Disease Hospital of Athens, Athens, Greece
| | - Spyridon Megremis
- Division of Evolution and Genomic Science, The University of Manchester, Manchester, UK
| | - Dimitrios Paraskevis
- Department of Hygiene, Epidemiology and Medical Statistics, National and Kapodistrian University of Athens, Athens, Greece
| | - Chrysa Voyiatzaki
- Department of Biomedical Sciences, University of West Attica, Egaleo, Greece
| | | | - Effie Papageorgiou
- Department of Biomedical Sciences, University of West Attica, Egaleo, Greece
| | - Nikolaos G Papadopoulos
- Division of Infection, Immunity and Respiratory Medicine, The University of Manchester, Manchester, UK
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Jørgen Vestbo
- Division of Infection, Immunity and Respiratory Medicine, The University of Manchester, Manchester, UK
- North West Lung Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Apostolos Beloukas
- Department of Biomedical Sciences, University of West Attica, Egaleo, Greece
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - Alexander G Mathioudakis
- Division of Infection, Immunity and Respiratory Medicine, The University of Manchester, Manchester, UK
- North West Lung Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| |
Collapse
|
8
|
Hadzic S, Wu CY, Avdeev S, Weissmann N, Schermuly RT, Kosanovic D. Lung epithelium damage in COPD - An unstoppable pathological event? Cell Signal 2020; 68:109540. [PMID: 31953012 DOI: 10.1016/j.cellsig.2020.109540] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/11/2020] [Accepted: 01/11/2020] [Indexed: 10/25/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a common term for alveolar septal wall destruction resulting in emphysema, and chronic bronchitis accompanied by conductive airway remodelling. In general, this disease is characterized by a disbalance of proteolytic/anti-proteolytic activity, augmented inflammatory response, increased oxidative/nitrosative stress, rise in number of apoptotic cells and decreased proliferation. As the first responder to the various environmental stimuli, epithelium occupies an important position in different lung pathologies, including COPD. Epithelium sequentially transitions from the upper airways in the direction of the gas exchange surface in the alveoli, and every cell type possesses a distinct role in the maintenance of the homeostasis. Basically, a thick ciliated structure of the airway epithelium has a major function in mucus secretion, whereas, alveolar epithelium which forms a thin barrier covered by surfactant has a function in gas exchange. Following this line, we will try to reveal whether or not the chronic bronchitis and emphysema, being two pathological phenotypes in COPD, could originate in two different types of epithelium. In addition, this review focuses on the role of lung epithelium in COPD pathology, and summarises underlying mechanisms and potential therapeutics.
Collapse
Affiliation(s)
- Stefan Hadzic
- Department of Internal Medicine, Cardio-Pulmonary Institute (CPI), German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Cheng-Yu Wu
- Department of Internal Medicine, Cardio-Pulmonary Institute (CPI), German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Sergey Avdeev
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Norbert Weissmann
- Department of Internal Medicine, Cardio-Pulmonary Institute (CPI), German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Ralph Theo Schermuly
- Department of Internal Medicine, Cardio-Pulmonary Institute (CPI), German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Djuro Kosanovic
- Department of Internal Medicine, Cardio-Pulmonary Institute (CPI), German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany; Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.
| |
Collapse
|
9
|
Amati F, Simonetta E, Gramegna A, Tarsia P, Contarini M, Blasi F, Aliberti S. The biology of pulmonary exacerbations in bronchiectasis. Eur Respir Rev 2019; 28:28/154/190055. [PMID: 31748420 DOI: 10.1183/16000617.0055-2019] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 06/11/2019] [Indexed: 12/21/2022] Open
Abstract
Bronchiectasis is a heterogeneous chronic disease. Heterogeneity characterises bronchiectasis not only in the stable state but also during exacerbations, despite evidence on clinical and biological aspects of bronchiectasis, exacerbations still remain poorly understood.Although the scientific community recognises that bacterial infection is a cornerstone in the development of bronchiectasis, there is a lack of data regarding other trigger factors for exacerbations. In addition, a huge amount of data suggest a primary role of neutrophils in the stable state and exacerbation of bronchiectasis, but the inflammatory reaction involves many other additional pathways. Cole's vicious cycle hypothesis illustrates how airway dysfunction, airway inflammation, infection and structural damage are linked. The introduction of the concept of a "vicious vortex" stresses the complexity of the relationships between the components of the cycle. In this model of disease, exacerbations work as a catalyst, accelerating the progression of disease. The roles of microbiology and inflammation need to be considered as closely linked and will need to be investigated in different ways to collect samples. Clinical and translational research is of paramount importance to achieve a better comprehension of the pathophysiology of bronchiectasis, microbiology and inflammation both in the stable state and during exacerbations.
Collapse
Affiliation(s)
- Francesco Amati
- Dept of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Edoardo Simonetta
- Dept of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Andrea Gramegna
- Dept of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Paolo Tarsia
- Dept of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Martina Contarini
- Dept of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesco Blasi
- Dept of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefano Aliberti
- Dept of Pathophysiology and Transplantation, University of Milan, Milan, Italy .,Respiratory Unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| |
Collapse
|
10
|
Colosia AD, Yang J, Hillson E, Mauskopf J, Copley-Merriman C, Shinde V, Stoddard J. The epidemiology of medically attended respiratory syncytial virus in older adults in the United States: A systematic review. PLoS One 2017; 12:e0182321. [PMID: 28797053 PMCID: PMC5552193 DOI: 10.1371/journal.pone.0182321] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 07/17/2017] [Indexed: 11/23/2022] Open
Abstract
Objective This review was undertaken to assess the historical evidence of the disease incidence and burden of laboratory-confirmed respiratory syncytial virus (RSV) in medically attended older adults. Design A qualitative systematic literature review was performed; no statistical synthesis of the data was planned, in anticipation of expected heterogeneity across studies in this population. Methods A literature search of PubMed, Embase, and the Cochrane Library was conducted for studies of medically attended RSV in older adults (≥ 50 years) published in the last 15 years. Two independent reviewers screened titles and abstracts based on predefined inclusion and exclusion criteria. Results From 10 studies reporting incidence proportions, RSV may be the causative agent in up to 12% of medically attended acute respiratory illness in older adults unselected for comorbidities, with variations in clinical setting and by year. In multiple studies, medically attended–RSV incidence among older adults not selected for having underlying health conditions increased with increasing age. Of prospectively followed lung transplant recipients, 16% tested positive for RSV. In hospitalized adults with chronic cardiopulmonary diseases, 8% to 13% were infected with RSV during winter seasons (8%-13%) or metapneumovirus season (8%). Hospitalizations for RSV in older adults typically lasted 3 to 6 days, with substantial proportions requiring intensive care unit admission and mechanical ventilation. Among older adults hospitalized with RSV, the mortality rate was 6% to 8%. Conclusions Protection of older adults against RSV could reduce respiratory-related burden, especially as age increases and the prevalence of comorbidities (especially cardiopulmonary comorbidities) grows.
Collapse
Affiliation(s)
- Ann D. Colosia
- RTI Health Solutions, Research Triangle Park, North Carolina, United States
- * E-mail:
| | - Jin Yang
- RTI Health Solutions, Research Triangle Park, North Carolina, United States
| | | | - Josephine Mauskopf
- RTI Health Solutions, Research Triangle Park, North Carolina, United States
| | | | | | | |
Collapse
|
11
|
Abstract
Chronic obstructive pulmonary disease (COPD) is a disease with high prevalence and substantial associated economical burden. A significant determinant of quality of life, long-term survival, and health care costs is an acute exacerbation of COPD. Acute exacerbations are provoked by respiratory viruses, altered airway microbiome, and environmental factors. The current treatment options are limited. In order to develop specific therapeutic measures, it is important to understand how acute exacerbations evolve. This review focuses on pathophysiology of stable and exacerbated COPD.
Collapse
Affiliation(s)
- Xianghui Zhou
- Department of Respiratory Medicine, The First Xuzhou People's Hospital, 19 Zhongshan North Road, Xuzhou, 221003, Jiangsu, China
| | - Qingling Li
- Department of Respiratory Medicine, The First Xuzhou People's Hospital, 19 Zhongshan North Road, Xuzhou, 221003, Jiangsu, China.
| | - Xincan Zhou
- Department of Respiratory Medicine, The First Xuzhou People's Hospital, 19 Zhongshan North Road, Xuzhou, 221003, Jiangsu, China
| |
Collapse
|
12
|
Koul PA, Mir H, Akram S, Potdar V, Chadha MS. Respiratory viruses in acute exacerbations of chronic obstructive pulmonary disease. Lung India 2017; 34:29-33. [PMID: 28144057 PMCID: PMC5234194 DOI: 10.4103/0970-2113.197099] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective: Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) cause significant morbidity, mortality, and an inexorable decline of lung function. Data from developed countries have shown viruses to be important causes of AECOPD, but data from developing countries like India are scant. We set out to determine the contribution of viruses in the causation of hospitalized patients with AECOPD. Methods: Twin nasopharyngeal/oropharyngeal swabs collected from 233 patients admitted with an acute AECOPD and tested for respiratory viruses including respiratory syncytial virus A and B, parainfluenza were (PIV) 1, 2, 3, and 4, human metapneumovirus (hMPV) A and B, influenza A and B, enterovirus, corona NL65, OC43, and 229E viruses, adenovirus 2 and 4, rhinovirus, and bocavirus, by duplex real time reverse-transcription polymerase chain reaction (qRT-PCR) using CDC approved primers and probes. Samples positive for influenza A were subtyped for A/H1N1pdm09 and A/H3N2 whereas influenza B samples were subtyped into B/Yamagata and B/Victoria subtypes, using primers and probes recommended by CDC, USA. Results: Respiratory viruses were detected in 46 (19.7%) cases, influenza A/H3N2 and rhinoviruses being the most common viruses detected. More than one virus was isolated in four cases consisting of hMPV-B + adeno-2 + Inf-B; rhino + H3N2, PIV-1 + rhino; and PIV-1+ hMPV-B in one case each. Ancillary supportive therapeutic measures included bronchodilators, antibiotics, steroids, and ventilation (noninvasive in 42 and invasive in 4). Antiviral therapy was instituted in influenza-positive patients. Three patients with A/H3N2 infection died during hospitalization. Conclusions: We conclude that respiratory viruses are important contributors to AECOPD in India. Our data calls for prompt investigation during an exacerbation for viruses to obviate inappropriate antibiotic use and institute antiviral therapy in viral disease amenable to antiviral therapy. Appropriate preventive strategies like influenza vaccination also need to be employed routinely.
Collapse
Affiliation(s)
- Parvaiz A Koul
- Department of Internal and Pulmonary Medicine, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Hyder Mir
- Department of Internal and Pulmonary Medicine, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Shabir Akram
- Department of Internal and Pulmonary Medicine, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Varsha Potdar
- National Institute of Virology, Pune, Maharashtra, India
| | | |
Collapse
|
13
|
Jiang D, Berman R, Wu Q, Stevenson C, Chu HW. The Anti-inflammatory Effect of Alpha-1 Antitrypsin in Rhinovirus-infected Human Airway Epithelial Cells. ACTA ACUST UNITED AC 2016; 7. [PMID: 28191362 DOI: 10.4172/2155-9899.1000475] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Excessive airway inflammation is seen in chronic obstructive pulmonary disease (COPD) patients experiencing acute exacerbations, which are often associated with human rhinovirus (HRV) infection. Alpha-1 antitrypsin (A1AT) has anti-inflammatory function in endothelial cells and monocytes, but its anti-inflammatory effect has not been investigated in COPD airway epithelial cells. We determined A1AT's anti-inflammatory function in COPD airway epithelial cells and the underlying mechanisms such as the role of caspase-1. METHODS Brushed bronchial epithelial cells from COPD and normal subjects were cultured at air-liquid interface and treated with A1AT or bovine serum albumin (BSA, control) two hours prior to whole cigarette smoke (WCS) or air exposure, followed by HRV-16 infection. After 24 hours of viral infection, cell supernatants were collected for measuring IL-8, and cells were examined for caspase-1. The in vivo anti-inflammatory function of A1AT was determined by infecting mice intranasally with HRV-1B followed by aerosolized A1AT or BSA. RESULTS A1AT significantly reduced WCS and HRV-16-induced IL-8 production in normal and COPD airway epithelial cells. COPD cells are less sensitive to A1AT's anti-inflammatory effect than normal cells. A1AT exerted the anti-inflammatory function in part via reducing caspase-1 in normal cells, but not in COPD cells. In mice, A1AT significantly reduced HRV-1B induced lung neutrophilic inflammation. CONCLUSIONS A1AT exerts an anti-inflammatory effect in cigarette smoke-exposed and HRV-infected human airway epithelial cells, which may be related to its inhibitory effect on caspase-1 activity.
Collapse
Affiliation(s)
- Di Jiang
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | - Reena Berman
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | - Qun Wu
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | | | - Hong Wei Chu
- Department of Medicine, National Jewish Health, Denver, CO, USA; Department of Immunology and Microbiology, University of Colorado Denver School of Medicine, Aurora, CO, USA
| |
Collapse
|
14
|
Viruses in Idiopathic Pulmonary Fibrosis. Etiology and Exacerbation. Ann Am Thorac Soc 2016; 12 Suppl 2:S186-92. [PMID: 26595738 DOI: 10.1513/annalsats.201502-088aw] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Viral infections are important contributors to exacerbation of asthma and chronic obstructive pulmonary disease; however, the role of viruses in the pathogenesis of idiopathic pulmonary fibrosis (IPF) is less clear. This likely reflects that fact that IPF acute exacerbations are defined clinically as "noninfectious," and little attention has been paid to the outcomes of patients with IPF with diagnosed infections. However, accumulating evidence suggests that infections (both bacterial and viral) may influence disease outcomes either as exacerbating agents or initiators of disease. Support for a viral role in disease initiation comes from studies demonstrating the presence of herpesviral DNA and epithelial cell stress in the lungs of asymptomatic relatives at risk for developing familial IPF. In addition, the number of studies that can associate viral (especially herpesviral) signatures in the lung with the development of IPF is steadily growing, and activated leukocyte signatures in patients with IPF provide further support for infectious processes driving IPF progression. Animal modeling has been used to better understand how a gamma herpesvirus infection can modulate the pathogenesis of lung fibrosis and has demonstrated that preceding infections appear to reprogram lung epithelial cells during latency to produce profibrotic factors, making the lung more susceptible to subsequent fibrotic insult, whereas exacerbations of existing fibrosis, or infections in susceptible hosts, involve active viral replication and are influenced by antiviral therapy. In addition, there is new evidence that bacterial burden in the lungs of patients with IPF may predict a poor prognosis.
Collapse
|
15
|
Tapiovaara L, Kumpu M, Mäkivuokko H, Waris M, Korpela R, Pitkäranta A, Winther B. Human rhinovirus in experimental infection after peroral Lactobacillus rhamnosus GG consumption, a pilot study. Int Forum Allergy Rhinol 2016; 6:848-53. [PMID: 26990147 DOI: 10.1002/alr.21748] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/19/2016] [Accepted: 01/25/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND Data has emerged on possible beneficial effects of probiotics in respiratory tract viral infections, but it is unclear if the promising positive effects evidenced are due to a reduced viral load during infections. The aims of this work were to investigate the effect of peroral probiotic Lactobacillus rhamnosus GG (American Type Culture Collection [ATCC], Accession No. 53103) consumption on human rhinovirus (HRV) load in nasopharyngeal lavage samples in experimental HRV infection, and to correlate viral load to clinical symptoms. METHODS Intranasal HRV A39 inoculation was performed on 59 adults, who had consumed juice enriched with live or heat-inactivated L. rhamnosus GG or control juice for 3 weeks prior to inoculation in a randomized, controlled, pilot trial setting. Nasopharyngeal lavage samples and symptom data were analyzed on day 0 before inoculation, and on days 2 and 5. Samples were subjected to quantitative HRV detection by polymerase chain reaction (PCR). RESULTS Before inoculation 9 of 59 (15%) samples presented with another HRV strain than the studied A39. There was a tendency toward the lowest HRV loads in the L. rhamnosus GG groups and the highest in placebo group (log10 copies/mL, 95% confidence interval [CI], 6.20 [5.18 to 7.40] in live, 6.30 [4.91 to 7.08] in inactivated L. rhamnosus GG, and 7.25 [5.81 to 7.52] in placebo group, p = 0.57 in day 2) in the wild-type excluded population. The HRV load positively correlated with the symptom scores on days 2 and 5 (correlation coefficient 0.61 [p < 0.001] and 0.28 [p = 0.034], respectively). CONCLUSION Results did not show statistical differences in viral loads in subjects using L. rhamnosus GG when compared to placebo. HRV load positively correlated with the total symptom scores.
Collapse
Affiliation(s)
- Laura Tapiovaara
- Otorhinolaryngology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Minna Kumpu
- Valio Ltd, Helsinki, Finland.,Faculty of Medicine, Pharmacology, Medical Nutrition Physiology, University of Helsinki, Helsinki, Finland
| | | | - Matti Waris
- Department of Virology, University of Turku, Turku, Finland
| | - Riitta Korpela
- Faculty of Medicine, Pharmacology, Medical Nutrition Physiology, University of Helsinki, Helsinki, Finland
| | - Anne Pitkäranta
- Otorhinolaryngology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Birgit Winther
- Department of Otolaryngology, University of Virginia, Charlottesville, VA
| |
Collapse
|
16
|
Kwak HJ, Park DW, Kim JE, Park MK, Koo GW, Park TS, Moon JY, Kim TH, Sohn JW, Yoon HJ, Shin DH, Kim SH. Prevalence and Risk Factors of Respiratory Viral Infections in Exacerbations of Chronic Obstructive Pulmonary Disease. TOHOKU J EXP MED 2016; 240:131-139. [DOI: 10.1620/tjem.240.131] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Hyun Jung Kwak
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Jee Eun Kim
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Min Kyung Park
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Gun Woo Koo
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Tai Sun Park
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Tae Hyung Kim
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Dong Ho Shin
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine
| |
Collapse
|
17
|
Abstract
Chronic obstructive pulmonary disease (COPD), characterized by chronic airways inflammation and progressive airflow limitation, is a common, preventable and treatable disease. Worldwide, COPD is a major cause of morbidity and mortality; smoking tobacco is the most important risk factor. This translational review of recent updates in COPD care for the primary care audience, includes recommendations from the 2015 Global Initiative for chronic obstructive lung disease (GOLD) report on diagnosis, pharmacological and non-pharmacological treatment, prevalence of comorbidities, management of exacerbations and the asthma and COPD overlap syndrome, with a focus on the importance and benefit of physical activity and exercise in COPD patients. Exacerbations and comorbidities contribute to the overall severity of COPD in individual patients. Management of exacerbations includes reducing the impact of the current exacerbation and preventing development of subsequent episodes. Healthcare professionals need to be alert to comorbidities, such as cardiovascular disease, anxiety/depression, lung cancer, infections and diabetes, which are common in COPD patients and can have a significant impact on HRQoL and prognosis. Pulmonary rehabilitation is recommended by a number of guidelines for all symptomatic COPD patients, regardless of severity, and involves exercise training, patient education, nutritional advice and psychosocial support. At all stages of COPD, regular physical activity and exercise can aid symptom control, improve HRQoL, reduce rates of hospitalization, and improve morbidity and respiratory mortality. Healthcare professionals play a pivotal role in improving HRQoL and health-related outcomes in COPD patients to meet their specific needs and in providing appropriate diagnosis, management and advice on smoking cessation.
Collapse
Affiliation(s)
- Christine Garvey
- a Department of Sleep Disorders and Pulmonary Rehabilitation, University of California San Francisco , San Francisco , CA , USA
| |
Collapse
|
18
|
Su J, Liu HY, Tan XL, Ji Y, Jiang YX, Prabhakar M, Rong ZH, Zhou HW, Zhang GX. Sputum Bacterial and Fungal Dynamics during Exacerbations of Severe COPD. PLoS One 2015; 10:e0130736. [PMID: 26147303 PMCID: PMC4493005 DOI: 10.1371/journal.pone.0130736] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/24/2015] [Indexed: 12/25/2022] Open
Abstract
The changes in the microbial community structure during acute exacerbations of severe chronic obstructive pulmonary disease (COPD) in hospitalized patients remain largely uncharacterized. Therefore, further studies focused on the temporal dynamics and structure of sputum microbial communities during acute exacerbation of COPD (AECOPD) would still be necessary. In our study, the use of molecular microbiological techniques provided insight into both fungal and bacterial diversities in AECOPD patients during hospitalization. In particular, we examined the structure and varieties of lung microbial community in 6 patients with severe AECOPD by amplifying 16S rRNA V4 hyper-variable and internal transcribed spacer (ITS) DNA regions using barcoded primers and the Illumina sequencing platform. Sequence analysis showed 261 bacterial genera representing 20 distinct phyla, with an average number of genera per patient of >157, indicating high diversity. Acinetobacter, Prevotella, Neisseria, Rothia, Lactobacillus, Leptotrichia, Streptococcus, Veillonella, and Actinomyces were the most commonly identified genera, and the average total sequencing number per sputum sample was >10000 18S ITS sequences. The fungal population was typically dominated by Candia, Phialosimplex, Aspergillus, Penicillium, Cladosporium and Eutypella. Our findings highlight that COPD patients have personalized structures and varieties in sputum microbial community during hospitalization periods.
Collapse
Affiliation(s)
- Jin Su
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China; Department of Respiratory Physicians, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hai-yue Liu
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| | - Xi-lan Tan
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China; Department of Hospital Infection Management, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yong Ji
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| | - Yun-xia Jiang
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| | - M Prabhakar
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| | - Zu-hua Rong
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| | - Hong-wei Zhou
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| | - Guo-xia Zhang
- State Key Laboratory of Organ Failure Research, Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| |
Collapse
|
19
|
Kalyuzhin OV, Chelenkova IN, Ponezheva ZB. [Impact of respiratory viruses on the course of chronic obstructive pulmonary disease: towards optimizing treatment]. TERAPEVT ARKH 2015; 87:98-104. [PMID: 26027249 DOI: 10.17116/terarkh201587398-104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The paper analyzes the currently available data on the impact of respiratory viruses (RVs) on the exacerbations and clinical phenotype of chronic obstructive pulmonary disease (COPD), as well as on the molecular mechanisms of this impact. It emphasizes the role of acute respiratory viral infections (ARVI), primarily rhinovirus infections (RVI) as the most important triggers of COPD exacerbations and the causes of their severe and long-term course. Particular attention is given to ARVI-induced secondary bacterial infections that worsen COPD exacerbations. The mechanisms of how RVs potentiate chronic inflammation and remodeling of the airway, which are caused by tobacco smoke, are depicted. There are arguments that there is a much greater correlation of the acute episodes showing the more severe respiratory symptoms of COPD with ARVI than can be found by molecular methods for RV verification. The body's genetic and/or acquired excessive response to viral invasion does not reflect the efficacy of antiviral defense and is an endogenous damaging factor in this situation. The role of RVs in the formation of the clinical phenotypes of COPD with frequent exacerbations remains debatable. The need for a search and more active practical introduction of means to prevent virus-induced COPD exacerbations appears obvious. In this regard, the authors identify chemical and mechanical polyvalent bacterial lysates for oral and sublingual administration. In addition to nonspecific stimulation of antiviral defense, these medicines induce antigen-specific mucosal and systemic reactions against bacterial pathogens. The role of ARVI pathogens in COPD exacerbations deserves a greater practical attention focused towards optimizing the treatment of this social disease.
Collapse
Affiliation(s)
- O V Kalyuzhin
- Department of Clinical Immunology and Allergology, I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia, Moscow, Russia
| | - I N Chelenkova
- Consulting Department, State Research Center for Preventive Medicine, Ministry of Health of Russia, Moscow, Russia
| | - Zh B Ponezheva
- Clinical Department of Infectious Pathology, Central Research Institute of Epidemiology, Russian Federal Service for Supervision of Consumer Rights Protection and Human Welfare, Moscow, Russia
| |
Collapse
|
20
|
Djamin RS, Uzun S, Snelders E, Kluytmans JJW, Hoogsteden HC, Aerts JGJV, Van Der Eerden MM. Occurrence of virus-induced COPD exacerbations during four seasons. Infect Dis (Lond) 2014; 47:96-100. [DOI: 10.3109/00365548.2014.968866] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
|