1
|
Omecene NE, Wilcox N, Cox AL, Ham P, Ong R, Barber AT, Zimmerman KM. A review of proton pump inhibitor use in cystic fibrosis and considerations for deprescribing. Pediatr Pulmonol 2024. [PMID: 39193889 DOI: 10.1002/ppul.27229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 07/30/2024] [Accepted: 08/18/2024] [Indexed: 08/29/2024]
Abstract
Use of proton-pump inhibitors (PPIs) is common among people with cystic fibrosis (pwCF) both for the management of suspected GERD, as well as pancreatic enzyme replacement therapy augmentation. Despite their use, limited data exist to demonstrate a clinically significant impact of PPIs on key endpoints in pwCF. Furthermore, the advent of cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapy may modify the need for use. These notions, coupled with the potential for adverse outcomes associated with long-term PPI use in pwCF, should facilitate re-evaluation of long-term PPI use in pwCF and promote potential deprescribing. Despite limited data on PPI deprescribing in pwCF, it intuitively mirrors the existing guidance in adults in the general population, but with added consideration given to tapering strategy, and monitoring for CF-specific outcomes such as nutritional and respiratory status. The development of a monitoring and re-initiation plan is key to reducing deprescribing inertia. This review aims to summarize the evidence that details the concern for long-term use of PPIs and provide CF clinicians with rationale and guidance on how to approach deprescribing in their practice.
Collapse
Affiliation(s)
- Nicole E Omecene
- Department of Pharmacotherapy and Outcomes Science, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, USA
| | - Nicole Wilcox
- Department of Pharmacy, Children's Hospital of Richmond at Virginia Commonwealth University, Richmond, Virginia, USA
| | - Alexandra L Cox
- Department of Pharmacy, Atrium Health Wake Forest Baptist, Winston-Salem, North Carolina, USA
| | - Pearl Ham
- Department of Pharmacotherapy and Outcomes Science, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, USA
| | - Ryan Ong
- Department of Pharmacotherapy and Outcomes Science, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, USA
| | - Andrew T Barber
- Division of Pediatric Pulmonary and Sleep Medicine, Children's Hospital of Richmond at Virginia Commonwealth University, Richmond, Virginia, USA
| | - Kristin M Zimmerman
- Department of Pharmacotherapy and Outcomes Science, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, USA
| |
Collapse
|
2
|
Sheykhsaran E, Abbasi A, Memar MY, Ghotaslou R, Baghi HB, Mazraeh FN, Laghousi D, Sadeghi J. The role of Staphylococcus aureus in cystic fibrosis pathogenesis and clinico-microbiological interactions. Diagn Microbiol Infect Dis 2024; 109:116294. [PMID: 38678689 DOI: 10.1016/j.diagmicrobio.2024.116294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/05/2024] [Accepted: 03/29/2024] [Indexed: 05/01/2024]
Abstract
Cystic fibrosis (CF) is a progressive and inherited disease that affects approximately 70000 individuals all over the world annually. A mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene serves as its defining feature. Bacterial infections have a significant impact on the occurrence and development of CF. In this manuscript, we discuss the role and virulence factors of Staphylococcus aureus as an important human pathogen with the ability to induce respiratory tract infections. Recent studies have reported S. aureus as the first isolated bacteria in CF patients. Methicillin-resistant Staphylococcus aureus (MRSA) pathogens are approximately resistant to all β-lactams. CF patients are colonized by MRSA expressing various virulence factors including toxins, and Staphylococcal Cassette Chromosome mec (SCCmec) types, and have the potential for biofilm formation. Therefore, variations in clinical outcomes will be manifested. SCCmec type II has been reported in CF patients more than in other SCCmec types from different countries. The small-colony variants (SCVs) as specific morphologic subtypes of S. aureus with slow growth and unusual properties can also contribute to persistent and difficult-to-treat infections in CF patients. The pathophysiology of SCVs is complicated and not fully understood. Patients with cystic fibrosis should be aware of the intrinsic risk factors for complex S. aureus infections, including recurring infections, physiological issues, or coinfection with P. aeruginosa.
Collapse
Affiliation(s)
- Elham Sheykhsaran
- Immunology Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran; Students' Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Abbasi
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Yousef Memar
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Ghotaslou
- Department of Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Bannazadeh Baghi
- Immunology Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran; Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fariba Naeimi Mazraeh
- Department of Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Delara Laghousi
- Social Determinants of Health Research Center, Health Management and Safety Promotion Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javid Sadeghi
- Immunology Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| |
Collapse
|
3
|
Yang Y, Ge H, Lu J, Huang X, Wang K, Jin L, Qi L, Li M. Structural features on quantitative chest computed tomography of patients with maximal mid-expiratory flow impairment in a normal lung function population. BMC Pulm Med 2023; 23:86. [PMID: 36922831 PMCID: PMC10015933 DOI: 10.1186/s12890-023-02380-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 03/03/2023] [Indexed: 03/17/2023] Open
Abstract
BACKGROUND Maximal mid-expiratory flow (MMEF) is an earlier predictor of chronic obstructive pulmonary disease (COPD) development than forced expiratory volume in 1 s (FEV1). Changes of lung structure in patients with MMEF impairment only is still not clear. Therefore, this study aimed to investigate the structural features of patients with decreased MMEF by quantitative computed tomography (QCT) and develop a predictive model for predicting patients with reduced MMEF in normal lung function population. METHODS In this study, 131 patients with normal spirometry results and available volumetric chest CT images were enrolled and divided into the reduced MMEF group (FEV1/forced expiratory vital capacity (FEV1/FVC) > 0.7, FEV1% predictive values (FEV1%pred) > 80%, MMEF%pred < 80%, n = 52) and the normal MMEF group (FEV1/FVC > 0.7, FEV1%pred > 80%, MMEF%pred ≥ 80%, n = 79). The emphysema, small airway disease and medium-size airway parameters were measured by a commercial software. The differences were investigated in clinical features, spirometrical parameters and QCT parameters between the two groups. A nomogram model was constructed based on the results of the multivariable logistic regression model. Spearman's correlation coefficients were calculated between QCT measurements and spirometrical parameters. RESULTS There were more males in reduced MMEF group than normal group (P < 0.05). Lung parenchyma parameter (PRMEmph) and airway-related parameters (functional small airway disease (PRMfSAD), luminal area of fifth- and sixth- generation airway (LA5, LA6) were significantly different between the reduced MMEF group and the normal group (20.2 ± 17.4 vs 9.4 ± 6.7, 3.4 ± 3.5 vs 1.9 ± 2.0, 12.2 ± 2.5 vs 13.7 ± 3.4, 7.7 ± 2.4 vs 8.9 ± 2.8, respectively, all P < 0.01). After multivariable logistical regression, only sex (odds ratio [OR]: 2.777; 95% confidence interval [CI]:1.123-3.867), PRMfSAD (OR:1.102, 95%CI:1.045-1.162) and LA6 (OR:0.650, 95%CI:0.528-0.799) had significant differences between the two groups (P < 0.05) and a model incorporating with the three indicators was constructed (area under curve, 0.836). Correlation analysis showed MMEF%pred had mild to moderate correlation with airway-related measurements. CONCLUSION In normal lung function population, patients with reduced MMEF have potential medium-size and small airway changes, and MMEF%pred is significantly associated with airway-related CT parameters. The nomogram incorporating with sex, PRMfSAD and LA6 has good predictive value and offers more objective evidences in a group with reduced MMEF.
Collapse
Affiliation(s)
- Yuling Yang
- Department of Radiology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China
| | - Haiyan Ge
- Department of Respiratory Medicine, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China
| | - Jinjuan Lu
- Department of Radiology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China
| | - Xuemei Huang
- Department of Radiology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China
| | - Kun Wang
- Department of Radiology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China
| | - Liang Jin
- Department of Radiology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China
| | - Lin Qi
- Department of Radiology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China.
| | - Ming Li
- Department of Radiology, Huadong Hospital Affiliated With Fudan University, No. 221 West Yanan Road, Shanghai, 200040, China.
| |
Collapse
|
4
|
Gonçalves EDS, Ribeiro JD, Marson FAL, Montes CG, Ribeiro AF, Mainz JG, Toro AADC, Zamariola JH, Borgli DSP, Lomazi EA, Servidoni MDFCP. Combined multi-channel intraluminal impedance measurement and pHmetry in the detection of gastroesophageal reflux disease in children with cystic fibrosis. J Pediatr (Rio J) 2022; 99:269-277. [PMID: 36564006 DOI: 10.1016/j.jped.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE To assess the prevalence of GERD exclusively by means of multichannel intraluminal impedanciometry associated with pH monitoring (MIIpH) and compare it with respiratory symptoms in children with CF. To compare MIIpH with pHmetry alone to perform GERD diagnosis. METHODS An analytical cross-sectional study was conducted with children diagnosed with CF who underwent MIIpH. Clinical and laboratory markers, including respiratory and digestive symptoms, were used for comparative analyses. High-resolution chest computed tomography was performed on patients with symptoms of chronic lung disease. Severity was classified according to the Bhalla score. RESULTS A total of 29 children < 10 yo (18 girls) were evaluated; 19 of whom with physiological GER and 10 with GERD. Of the children with GERD, seven had predominantly acid GER, two acid+non-acid GER, and one non-acid GER. Three patients had GERD diagnosed only by MIIpH. Bhalla scores ranged from seven to 17.75 with no significant relationship with GERD. The number of pulmonary exacerbations was associated with a decrease in esophageal clearance regardless of the position in pHmetry and MIIpH. CONCLUSIONS The prevalence of GERD was 34% in children with CF. There was no association between respiratory disease severity and GER types. MIIpH detected 30% more patients with GERD than pHmetry.
Collapse
Affiliation(s)
- Emília da Silva Gonçalves
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil.
| | - José Dirceu Ribeiro
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil.
| | - Fernando Augusto Lima Marson
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil; Universidade São Francisco, Laboratório de Genética Médica e Medicina Genômica, Pós-Graduação em Ciências da Saúde, Bragança Paulista, SP, Brazil; Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Centro de Diagnóstico de Doenças do Aparelho Digestivo (Gastrocentro), Campinas, SP, Brazil
| | - Ciro Garcia Montes
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Centro de Diagnóstico de Doenças do Aparelho Digestivo (Gastrocentro), Campinas, SP, Brazil
| | - Antônio Fernando Ribeiro
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil
| | - Jochen Georg Mainz
- University Klinikum Westbrandenburg Klinik für Kinder- und Jugendmedizin, Brandenburg Medical School (MHB), Head of Pediatric Pulmonology and Cystic Fibrosis, Hochstraße, Germany
| | - Adyléia Aparecida Dalbo Contrera Toro
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil
| | - Juliana Helena Zamariola
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil
| | - Daniela Souza Paiva Borgli
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil
| | - Elizete Aparecida Lomazi
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil
| | - Maria de Fátima Corrêa Pimenta Servidoni
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Pediatria, Centro de Pesquisa Pediátrica, Laboratório de Fibrose Cística e Laboratório de Fisiologia Pulmonar, Campinas, SP, Brazil; Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Centro de Diagnóstico de Doenças do Aparelho Digestivo (Gastrocentro), Campinas, SP, Brazil
| |
Collapse
|
5
|
Understanding Cystic Fibrosis Comorbidities and Their Impact on Nutritional Management. Nutrients 2022; 14:nu14051028. [PMID: 35268004 PMCID: PMC8912424 DOI: 10.3390/nu14051028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 11/17/2022] Open
Abstract
Cystic fibrosis (CF) is a chronic, multisystem disease with multiple comorbidities that can significantly affect nutrition and quality of life. Maintaining nutritional adequacy can be challenging in people with cystic fibrosis and has been directly associated with suboptimal clinical outcomes. Comorbidities of CF can result in significantly decreased nutritional intake and intestinal absorption, as well as increased metabolic demands. It is crucial to utilize a multidisciplinary team with expertise in CF to optimize growth and nutrition, where patients with CF and their loved ones are placed in the center of the care model. Additionally, with the advent of highly effective modulators (HEMs), CF providers have begun to identify previously unrecognized nutritional issues, such as obesity. Here, we will review and summarize commonly encountered comorbidities and their nutritional impact on this unique population.
Collapse
|
6
|
Systems Biology and Bile Acid Signalling in Microbiome-Host Interactions in the Cystic Fibrosis Lung. Antibiotics (Basel) 2021; 10:antibiotics10070766. [PMID: 34202495 PMCID: PMC8300688 DOI: 10.3390/antibiotics10070766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 12/16/2022] Open
Abstract
The study of the respiratory microbiota has revealed that the lungs of healthy and diseased individuals harbour distinct microbial communities. Imbalances in these communities can contribute to the pathogenesis of lung disease. How these imbalances occur and establish is largely unknown. This review is focused on the genetically inherited condition of Cystic Fibrosis (CF). Understanding the microbial and host-related factors that govern the establishment of chronic CF lung inflammation and pathogen colonisation is essential. Specifically, dissecting the interplay in the inflammation–pathogen–host axis. Bile acids are important host derived and microbially modified signal molecules that have been detected in CF lungs. These bile acids are associated with inflammation and restructuring of the lung microbiota linked to chronicity. This community remodelling involves a switch in the lung microbiota from a high biodiversity/low pathogen state to a low biodiversity/pathogen-dominated state. Bile acids are particularly associated with the dominance of Proteobacterial pathogens. The ability of bile acids to impact directly on both the lung microbiota and the host response offers a unifying principle underpinning the pathogenesis of CF. The modulating role of bile acids in lung microbiota dysbiosis and inflammation could offer new potential targets for designing innovative therapeutic approaches for respiratory disease.
Collapse
|
7
|
J Burton S, Hachem C, Abraham JM. Luminal Gastrointestinal Manifestations of Cystic Fibrosis. Curr Gastroenterol Rep 2021; 23:4. [PMID: 33758994 DOI: 10.1007/s11894-021-00806-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW People with cystic fibrosis (CF) are living longer. General age-related and CF-specific gastrointestinal symptoms are increasingly recognized. In this article, we review the latest data on luminal gastrointestinal manifestations in CF. RECENT FINDINGS People with CF have increased incidence of gastroesophageal reflux disease symptoms and often prescribed proton-pump inhibitors (PPI). PPI use may increase risk of pulmonary exacerbations. Evidence to support gastric fundoplication to improve pulmonary outcomes is limited. Features of intestinal dysmotility are common. There are distinct differences in the gut microbiome in the CF population which may have clinical implications. CF is a possible hereditary digestive cancer syndrome, particularly in regard to colorectal cancer (CRC) with earlier incidence of CRC and advanced colonic neoplasia. Early screening colonoscopy is warranted in the CF population. Gastrointestinal manifestations in CF are prevalent across all digestive organs. More study on the effect of interventions for symptomatic treatment and cancer screening is needed.
Collapse
Affiliation(s)
- Samuel J Burton
- Division of Gastroenterology and Hepatology, Saint Louis University, St. Louis, MI, USA
| | - Christine Hachem
- Division of Gastroenterology and Hepatology, Saint Louis University, St. Louis, MI, USA
| | - James M Abraham
- Department of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA.
| |
Collapse
|
8
|
McDonnell MJ, Hunt EB, Ward C, Pearson JP, O'Toole D, Laffey JG, Murphy DM, Rutherford RM. Current therapies for gastro-oesophageal reflux in the setting of chronic lung disease: state of the art review. ERJ Open Res 2020; 6:00190-2019. [PMID: 33693049 PMCID: PMC7927787 DOI: 10.1183/23120541.00190-2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/12/2020] [Indexed: 12/13/2022] Open
Abstract
The inter-relationship between chronic respiratory disease and reflux disease in the airway reflux paradigm is extremely complex and remains poorly characterised. Reflux disease is reported to cause or contribute to the severity of a number of respiratory tract diseases including laryngeal disorders, sinusitis, chronic cough, asthma, COPD, idiopathic pulmonary fibrosis, cystic fibrosis, bronchiectasis and bronchiolitis obliterans post lung transplant. It is now appreciated that reflux disease is not simply caused by liquid acid reflux but rather by a variety of chemical refluxates originating from the stomach and duodenum due to a number of different mechanisms. Reflux disease can be challenging to diagnose, particularly proving its role in the causation of direct respiratory epithelial damage. Significant advances in oesophageal assessment and gastric biomarkers have emerged in recent years as our understanding increases. There are a number of treatments available for reflux disease, both medical and surgical, but there is a paucity of large randomised trials to evaluate their efficacy in the setting of chronic respiratory disease. Everyday clinical practice, however, informs us that treatment failure in reflux disease is common. This clinical review summarises associations between reflux disease in the setting of chronic respiratory diseases and examines available evidence regarding potential therapeutic strategies. Gastro-oesophageal reflux disease is prevalent among patients with chronic respiratory disease. A number of medical and surgical treatment options are available for GORD. This review examines available evidence in the setting of chronic lung disease.https://bit.ly/34TcMJS
Collapse
Affiliation(s)
- Melissa J McDonnell
- Dept of Respiratory Medicine, Galway University Hospitals, Galway, Ireland.,Lung Biology Group, National University of Ireland, Galway, Ireland.,Institute of Cell and Molecular Biosciences, Newcastle University, Newcastle, UK
| | - Eoin B Hunt
- Dept of Respiratory Medicine, Cork University Hospital, Cork, Ireland.,The Clinical Research Facility, University College Cork, Cork, Ireland
| | - Chris Ward
- Institute of Cell and Molecular Biosciences, Newcastle University, Newcastle, UK
| | - Jeffrey P Pearson
- Institute of Cell and Molecular Biosciences, Newcastle University, Newcastle, UK
| | - Daniel O'Toole
- Lung Biology Group, National University of Ireland, Galway, Ireland
| | - John G Laffey
- Lung Biology Group, National University of Ireland, Galway, Ireland
| | - Desmond M Murphy
- Dept of Respiratory Medicine, Cork University Hospital, Cork, Ireland.,The Clinical Research Facility, University College Cork, Cork, Ireland
| | | |
Collapse
|
9
|
Bongiovanni A, Manti S, Parisi GF, Papale M, Mulè E, Rotolo N, Leonardi S. Focus on gastroesophageal reflux disease in patients with cystic fibrosis. World J Gastroenterol 2020; 26:6322-6334. [PMID: 33244195 PMCID: PMC7656210 DOI: 10.3748/wjg.v26.i41.6322] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/22/2020] [Accepted: 10/01/2020] [Indexed: 02/06/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) is a common gastrointestinal disorder in cystic fibrosis (CF), and based on various studies, its prevalence is elevated since childhood. There are several pathogenetic mechanisms on the basis of association between CF and GERD. However, there are no specific guidelines for GERD in CF patients, so diagnosis is based on guidelines performed on patients not affected by CF. The aim of this review is to provide the pathophysiology, diagnostic and therapeutic options, complications, and future directions in the management of GERD patients with CF.
Collapse
Affiliation(s)
- Annarita Bongiovanni
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Sara Manti
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Giuseppe Fabio Parisi
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Maria Papale
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Enza Mulè
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Novella Rotolo
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| | - Salvatore Leonardi
- Department of Clinical and Experimental Medicine, Pediatric Respiratory Unit, San Marco Hospital, University of Catania, Catania 95123, Italy
| |
Collapse
|
10
|
Flynn S, Reen FJ, O'Gara F. Exposure to Bile Leads to the Emergence of Adaptive Signaling Variants in the Opportunistic Pathogen Pseudomonas aeruginosa. Front Microbiol 2019; 10:2013. [PMID: 31555243 PMCID: PMC6727882 DOI: 10.3389/fmicb.2019.02013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 08/16/2019] [Indexed: 12/18/2022] Open
Abstract
The chronic colonization of the respiratory tract by the opportunistic pathogen Pseudomonas aeruginosa is the primary cause of morbidity and mortality in cystic fibrosis (CF) patients. P. aeruginosa has been shown to undergo extensive genomic adaptation facilitating its persistence within the CF lung allowing it to evade the host immune response and outcompete co-colonizing residents of the lung microbiota. However, whilst several studies have described the various mutations that frequently arise in clinical isolates of P. aeruginosa, the environmental factors governing the emergence of these genetic variants is less well characterized. Gastro-oesophageal reflux has recently emerged as a major co-morbidity in CF and is often associated with the presence of bile acids in the lungs most likely by (micro) aspiration. In order to investigate whether bile may select for genetic variants, P. aeruginosa was experimentally evolved in artificial sputum medium, a synthetic media resembling environmental conditions found within the CF lung. Pigmented derivatives of P. aeruginosa emerged exclusively in the presence of bile. Genome sequencing analysis identified single nucleotide polymorphisms (SNPs) in quorum sensing (lasR) and both the pyocyanin (phzS) and pyomelanin (hmgA) biosynthetic pathways. Phenotypic analysis revealed an altered bile response when compared to the ancestral P. aeruginosa progenitor strain. While the recovered pigmented derivatives retained the bile mediated suppression of swarming motility and enhanced antibiotic tolerance, the biofilm, and redox responses to bile were abolished in the adapted mutants. Though loss of pseudomonas quinolone signal (PQS) production in the pigmented isolates was not linked to the altered biofilm response, the loss of redox repression could be explained by defective alkyl-quinolone (AQ) production in the presence of bile. Collectively, these findings suggest that the adaptive variants of P. aeruginosa that arise following long term bile exposure enables the emergence of ecologically competitive sub-populations. Altered pigmentation and AQ signaling may contribute to an enhancement in fitness facilitating population survival within a bile positive environment.
Collapse
Affiliation(s)
- Stephanie Flynn
- BIOMERIT Research Centre, School of Microbiology, University College Cork - National University of Ireland, Cork, Ireland
| | - F Jerry Reen
- School of Microbiology, University College Cork - National University of Ireland, Cork, Ireland
| | - Fergal O'Gara
- BIOMERIT Research Centre, School of Microbiology, University College Cork - National University of Ireland, Cork, Ireland.,Telethon Kids Institute, Perth, WA, Australia.,School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| |
Collapse
|
11
|
Delpiano L, Thomas JJ, Yates AR, Rice SJ, Gray MA, Saint-Criq V. Esomeprazole Increases Airway Surface Liquid pH in Primary Cystic Fibrosis Epithelial Cells. Front Pharmacol 2018; 9:1462. [PMID: 30618754 PMCID: PMC6297391 DOI: 10.3389/fphar.2018.01462] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/29/2018] [Indexed: 12/30/2022] Open
Abstract
Respiratory failure, driven by airways mucus obstruction, chronic inflammation and bacterial infections, is the main cause of mortality and morbidity in people with cystic fibrosis (CF) due to defects in the Cl- andHCO 3 - transport activity of the CF Transmembrane conductance Regulator (CFTR). Most recent pre-clinical and clinical studies have focused on restoring CFTR function by enhancing its trafficking or transport activity and show promising results. However, there are a significant number of patients that will not benefit from these CFTR-targeted therapies and it is therefore important to identify new non-CFTR targets that will restore lung function, by-passing CFTR dysfunction. The H+/K+-ATPase, ATP12A, has recently been identified as a potential novel target for CF therapies, since its acute inhibition by ouabain was shown to help restore mucus viscosity, mucociliary transport, and antimicrobial activity using in vitro CF airway models, and this effect was linked to an increase in the pH of the airway surface liquid (ASL). Here, we have evaluated the potential therapeutic use of ouabain by investigating the effect of chronically treating fully differentiated CF primary human airway epithelial cells (hAECs) with ouabain, under thin film conditions, resembling the in vivo situation. Our results show that although chronic treatment increased ASL pH, this correlated with a deleterious effect on epithelial integrity as assessed by LDH release, transepithelial electrical resistance, fluorescein flux, and ion transport. Since ATP12A shares approximately 65% identity with the gastric H+/K+-ATPase (ATP4A), we investigated the potential of using clinically approved ATP4A proton pump inhibitors (PPIs) for their ability to restore ASL pH in CF hAECs. We show that, despite not expressing ATP4A transcripts, acute exposure to the PPI esomeprezole, produced changes in intracellular pH that were consistent with the inhibition of H+ secretion, but this response was independent of ATP12A. More importantly, chronic exposure of CF hAECs to esomeprazole alkalinized the ASL without disrupting the epithelial barrier integrity, but this increase in ASL pH was consistent with a decrease in mRNA expression of ATP12A. We conclude that PPIs may offer a new approach to restore ASL pH in CF airways, which is independent of CFTR.
Collapse
Affiliation(s)
- Livia Delpiano
- Epithelial Research Group, Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Joseph J. Thomas
- Epithelial Research Group, Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Annabel R. Yates
- Epithelial Research Group, Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Sarah J. Rice
- Skeletal Research Group, Institute of Genetic Medicine, International Centre for Life, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Michael A. Gray
- Epithelial Research Group, Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Vinciane Saint-Criq
- Epithelial Research Group, Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| |
Collapse
|
12
|
Cystic Fibrosis and gastroesophageal reflux disease. J Cyst Fibros 2018; 16 Suppl 2:S2-S13. [PMID: 28986024 DOI: 10.1016/j.jcf.2017.07.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/06/2017] [Accepted: 07/06/2017] [Indexed: 12/19/2022]
Abstract
Gastroesophageal reflux is common in children and adults with cystic fibrosis (CF). Pathological gastroesophageal reflux disease (GERD) is also frequent in patients of all ages with CF. This article reviews the pathophysiology, diagnostic work-up, management options, complications, and future directions in the evaluation and management of GERD - unique to and pertinent for - patients with CF in particular.
Collapse
|
13
|
van Horck M, van de Kant K, Winkens B, Wesseling G, Gulmans V, Hendriks H, van der Grinten C, Jöbsis Q, Dompeling E. Risk factors for lung disease progression in children with cystic fibrosis. Eur Respir J 2018; 51:13993003.02509-2017. [PMID: 29773689 DOI: 10.1183/13993003.02509-2017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 04/16/2018] [Indexed: 12/15/2022]
Abstract
To identify potential risk factors for lung disease progression in children with cystic fibrosis (CF), we studied the longitudinal data of all children with CF (aged ≥5 years) registered in the Dutch CF Registry (2009-2014).Lung disease progression was expressed as a decline in lung function (forced expiratory volume in 1 s (FEV1) % pred) and pulmonary exacerbation rate. Potential risk factors at baseline included sex, age, best FEV1 % pred, best forced vital capacity % pred, genotype, body mass index z-score, pancreatic insufficiency, medication use (proton pump inhibitors (PPIs), prophylactic antibiotics and inhaled corticosteroids), CF-related diabetes, allergic bronchopulmonary aspergillosis and colonisation with Pseudomonas aeruginosaThe data of 545 children were analysed. PPI use was associated with both annual decline of FEV1 % pred (p=0.017) and future pulmonary exacerbation rate (p=0.006). Moreover, lower FEV1 % pred at baseline (p=0.007), prophylactic inhaled antibiotic use (p=0.006) and pulmonary exacerbations in the baseline year (p=0.002) were related to pulmonary exacerbations in subsequent years.In a cohort of Dutch children with CF followed for 5 years, we were able to identify several risk factors for future exacerbations. In particular, the association between PPI use and lung disease progression definitely requires further investigation.
Collapse
Affiliation(s)
- Marieke van Horck
- Dept of Paediatric Respiratory Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands.,Dept of Paediatrics, Zuyderland Medical Centre, Sittard-Geleen, The Netherlands
| | - Kim van de Kant
- Dept of Paediatric Respiratory Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands.,Dept of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - Bjorn Winkens
- Dept of Methodology and Statistics, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - Geertjan Wesseling
- Dept of Respiratory Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | | | - Han Hendriks
- Dept of Paediatric Respiratory Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands.,Dept of Paediatrics, Zuyderland Medical Centre, Sittard-Geleen, The Netherlands
| | - Chris van der Grinten
- Dept of Respiratory Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - Quirijn Jöbsis
- Dept of Paediatric Respiratory Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - Edward Dompeling
- Dept of Paediatric Respiratory Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| |
Collapse
|
14
|
Abstract
This relationship between gastroesophageal reflux and airway disorders is complex, possibly bidirectional, and not clearly defined. The tools used to investigate gastroesophageal reflux are mostly informative about involvement of gastroesophageal reflux within the gastrointestinal tract, although they are often utilized to study the relationship between gastroesophageal reflux and airway issues with are suspected to occur in relation to reflux. These modalities often lack specificity for reflux-related airway disorders. Co-incidence of gastroesophageal reflux and airway disorders does not necessarily infer causality. While much of our focus has been on managing acidity, controlling refluxate is an area that has not been traditionally aggressively pursued. Our management approach is based on some of the evidence presented, but also often from a lack of adequate study to provide further guidance.
Collapse
Affiliation(s)
- Asim Maqbool
- Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA.
| | - Matthew J Ryan
- Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA
| |
Collapse
|
15
|
Abstract
A number of risk factors have been identified for deterioration of lung disease in children with Cystic Fibrosis (CF), and current management strategies are based on the prevention and treatment of such elements. Further challenge ensues when a patient has co-morbid disease in addition to CF, particularly when faced with rapidly deteriorating pulmonary status. It is difficult to measure the contribution of other pathologies to this decline and optimisation of both CF care and co-morbidity is paramount. This review explores the challenges faced when treating children with CF and co-morbid conditions, focussing on gastroesophageal reflux disease pre- and post-lung transplantation.
Collapse
|
16
|
Hunt EB, Sullivan A, Galvin J, MacSharry J, Murphy DM. Gastric Aspiration and Its Role in Airway Inflammation. Open Respir Med J 2018; 12:1-10. [PMID: 29456774 PMCID: PMC5806178 DOI: 10.2174/1874306401812010001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/22/2017] [Accepted: 01/01/2018] [Indexed: 12/15/2022] Open
Abstract
Gastro-Oesophageal Reflux (GOR) has been associated with chronic airway diseases while the passage of foreign matter into airways and lungs through aspiration has the potential to initiate a wide spectrum of pulmonary disorders. The clinical syndrome resulting from such aspiration will depend both on the quantity and nature of the aspirate as well as the individual host response. Aspiration of gastric fluids may cause damage to airway epithelium, not only because acidity is toxic to bronchial epithelial cells but also due to the effect of digestive enzymes such as pepsin and bile salts. Experimental models have shown that direct instillation of these factors to airways epithelia cause damage with a consequential inflammatory response. The pathophysiology of these responses is gradually being dissected, with better understanding of acute gastric aspiration injury, a major cause of acute lung injury, providing opportunities for therapeutic intervention and potentially, ultimately, improved understanding of the chronic airway response to aspiration. Ultimately, clarification of the inflammatory pathways which are related to micro-aspiration via pepsin and bile acid salts may eventually progress to pharmacological intervention and surgical studies to assess the clinical benefits of such therapies in driving symptom improvement or reducing disease progression.
Collapse
Affiliation(s)
- E B Hunt
- The Department of Respiratory Medicine, Cork University Hospital, Cork, Ireland.,The Health Research Board Clinical Research Facility, University College Cork, Cork, Ireland
| | - A Sullivan
- The APC Microbiome Institute, Schools of Medicine and Microbiology, University College Cork, Ireland
| | - J Galvin
- The APC Microbiome Institute, Schools of Medicine and Microbiology, University College Cork, Ireland
| | - J MacSharry
- The APC Microbiome Institute, Schools of Medicine and Microbiology, University College Cork, Ireland
| | - D M Murphy
- The Department of Respiratory Medicine, Cork University Hospital, Cork, Ireland.,The Health Research Board Clinical Research Facility, University College Cork, Cork, Ireland
| |
Collapse
|
17
|
Abstract
Comprehensive guidelines for the diagnosis and management of gastro-esophageal reflux (GER) and GER disease (GERD) were developed by the European and North American Societies for Pediatric Gastroenterology, Hepatology and Nutrition. GERD is reflux associated with troublesome symptoms or complications. The recognition of GER and GERD is relevant to implement best management practices. A conservative management is indicated in infants with uncomplicated physiologic reflux. Children with GERD may benefit from further evaluation and treatment. Since the publications of the European and North American Societies for Pediatric Gastroenterology, Hepatology and Nutrition guidelines in 2009, no important novelties in drug treatment have been reported. Innovations are mainly restricted to the management of regurgitation in infants. During the last 5 years, pros and cons of multichannel intraluminal impedance have been highlighted. However, overall 'not much has changed' in the diagnosis and management of GER and GERD in infants and children.
Collapse
Affiliation(s)
| | - Bruno Hauser
- a Department of Pediatrics, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium
| |
Collapse
|
18
|
Ulluwishewa D, Wang L, Pereira C, Flynn S, Cain E, Stick S, Reen FJ, Ramsay JP, O’Gara F. Dissecting the regulation of bile-induced biofilm formation in Staphylococcus aureus. Microbiology (Reading) 2016; 162:1398-1406. [DOI: 10.1099/mic.0.000317] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Dulantha Ulluwishewa
- School of Biomedical Sciences, CHIRI Research Institute, Curtin University, Perth, Australia
| | - Liang Wang
- School of Biomedical Sciences, CHIRI Research Institute, Curtin University, Perth, Australia
| | - Callen Pereira
- School of Biomedical Sciences, CHIRI Research Institute, Curtin University, Perth, Australia
| | - Stephanie Flynn
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland
| | - Elizabeth Cain
- School of Biomedical Sciences, CHIRI Research Institute, Curtin University, Perth, Australia
| | - Stephen Stick
- Telethon Kids Institute, School of Paediatric and Child Health, University of Western Australia, Perth, Australia
- Department of Respiratory Medicine, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
| | - F. Jerry Reen
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland
| | - Joshua P. Ramsay
- School of Biomedical Sciences, CHIRI Research Institute, Curtin University, Perth, Australia
| | - Fergal O’Gara
- School of Biomedical Sciences, CHIRI Research Institute, Curtin University, Perth, Australia
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland
| |
Collapse
|
19
|
Demeyer S, De Boeck K, Witters P, Cosaert K. Beyond pancreatic insufficiency and liver disease in cystic fibrosis. Eur J Pediatr 2016; 175:881-94. [PMID: 27055450 DOI: 10.1007/s00431-016-2719-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/17/2016] [Accepted: 03/22/2016] [Indexed: 12/13/2022]
Abstract
UNLABELLED Cystic fibrosis is a life shortening hereditary disease, primarily leading to progressive pulmonary infection and exocrine pancreatic dysfunction. Several gastrointestinal complications other than malabsorption can arise during the disease course and with the progressively increasing life span of patients with CF; new and more rare complications are being recognized. We review the literature on gastrointestinal manifestations in CF, excluding the liver and pancreas. CONCLUSION We describe the clinical presentation and treatment of more common conditions like gastroesophageal reflux, small intestinal bacterial overgrowth, intussusception, meconium ileus, distal intestinal obstruction syndrome, and constipation, and we also discuss what is known on celiac disease, appendicitis, fibrosing colonopathy, inflammation and inflammatory bowel disease and gastrointestinal cancer. WHAT IS KNOWN • Gastrointestinal complications arise early in the course of the disease and have a severe impact on the quality of life of the patients. What is New: • This review is a concise summary of the current literature on gastrointestinal complications of cystic fibrosis. • We focused on clinical presentation and diagnostic investigations and provide a comprehensive resume of the current treatment options.
Collapse
Affiliation(s)
- Stephanie Demeyer
- Universitaire Ziekenhuizen Leuven, Leuven, Vlaams-Brabant, Belgium. .,Department of Pediatrics, University Hospital Gasthuisberg, Herestraat 49, Leuven, 3000, Belgium.
| | - Kris De Boeck
- Department of Pediatrics, University Hospital Gasthuisberg, Herestraat 49, Leuven, 3000, Belgium
| | - Peter Witters
- Department of Pediatrics, University Hospital Gasthuisberg, Herestraat 49, Leuven, 3000, Belgium
| | - Katrien Cosaert
- Department of Pharmocology, University Hospital Gasthuisberg, Herestraat 49, Leuven, 3000, Belgium
| |
Collapse
|
20
|
|
21
|
Connett GJ. Cystic Fibrosis Nutrition--Chewing the Fat. Paediatr Respir Rev 2016; 17:42-4. [PMID: 26527359 DOI: 10.1016/j.prrv.2015.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 08/28/2015] [Indexed: 10/22/2022]
Abstract
Survival data for successive birth cohorts of cystic fibrosis infants born in the twentieth century have shown consistent improvements. More recent UK and US data suggest a plateau in improvements for clinically relevant outcomes. Better treatment of malnutrition has arguably been the most important advance in CF care, but despite this nearly a half of the UK CF population has a sub-optimal BMI. Nutritional decline typically occurs in late childhood and early adult life. Addressing poor adherence and more targeted multi-disciplinary interventions to prevent or reverse this pattern are key to achieving better outcomes for CF patients in the future.
Collapse
Affiliation(s)
- Gary J Connett
- Consultant in Paediatric Respiratory Medicine, Southampton Children's Hospital, University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, SO16 6YD, UK.
| |
Collapse
|
22
|
Pancreatic Enzyme Replacement Therapy and Coefficient of Fat Absorption in Children and Adolescents With Cystic Fibrosis. J Pediatr Gastroenterol Nutr 2015; 61:355-60. [PMID: 25782658 DOI: 10.1097/mpg.0000000000000784] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Pancreatic enzyme replacement therapy (PERT) is the proven therapy to substantially reduce fat malabsorption in patients with cystic fibrosis (CF). Few details of the daily practice regarding PERT and the resulting coefficient of fat absorption (CFA) are known. We therefore recorded the PERT and CFA in a large cohort of pancreatic insufficient pediatric patients with CF. METHODS We retrospectively studied 1719 completed 3-day dietary food records, including the pancreatic enzyme intake registrations, and 1373 CFA assessments of 224 patients with CF, ages 0-17 years. The clinical characteristics, PERT, expressed as an intake of lipase unit (LU) per gram of fat per day and LU per kilogram per day, and the CFA were described for the group as a whole and separately for those on enteral tube feeding. Cross-sectional relationship between the CFA and the LU per gram of fat per day and LU per kilogram per day were determined for each year of age. We also addressed the effect of the interventions done in patients with CFA outcomes <85%. RESULTS The LU per gram of fat per day was relatively stable throughout the age groups, whereas the LU per kilogram per day fell markedly with age. The median CFA in the age group 17 varied between 86% and 91%, however, with a CFA below 85% in 325 of 1373 (24%) of the measurements. No relationship was found between PERT and CFA. The patients with persistent CFA less than 85% had significant lower z scores weight for age and weight for height (P = 0.01) than those with CFA at least 85%. CONCLUSIONS In this study population, no correlation between an enzyme dosage and the degree of fat malabsorption was found; however, a CFA below 85% was found in 24% of the measurements.
Collapse
|
23
|
Dziekiewicz MA, Banaszkiewicz A, Urzykowska A, Lisowska A, Rachel M, Sands D, Walkowiak J, Radzikowski A, Albrecht P. Gastroesophageal Reflux Disease in Children with Cystic Fibrosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 873:1-7. [DOI: 10.1007/5584_2015_154] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
24
|
Prevalence of gastroesophageal reflux in cystic fibrosis and implications for lung disease. Ann Am Thorac Soc 2015; 11:964-8. [PMID: 24964289 DOI: 10.1513/annalsats.201401-044fr] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Gastroesophageal reflux (GER) is common in patients with cystic fibrosis (CF) and is often regarded as playing a role in the pathogenesis of CF lung disease. Individuals with CF have many predisposing factors to the development of GER, with a reported prevalence ranging from 35 to 81%. Several studies have suggested that patients with CF who have coexisting GER have more severe lung disease with lower pulmonary function and increased numbers of respiratory exacerbations. Furthermore, GER may alter the respiratory microbiology in CF. Both the acid and nonacid components of GER may have an effect on lung disease. More than 50% of U.S. patients with CF were being treated with proton pump inhibitors in 2012; however, data regarding safety and efficacy of these agents in CF are lacking. Pharmacologic and surgical treatment of GER may improve respiratory morbidity, although prospective controlled studies have not been performed. Given the lack of evidence-based guidelines for evaluation, diagnosis, and treatment of GER in CF, initiation of treatment for symptomatic GER should be based on standard guidelines for the general population. Because there is no clear evidence that GER leads to worse respiratory outcomes in CF or that treatment of GER improves pulmonary outcomes, invasive testing for GER in patients without reflux symptoms is not warranted. Further studies to determine the role of GER in CF lung disease and the risks and benefits of surgical and pharmacologic therapy for GER are warranted.
Collapse
|
25
|
Bile acids repress hypoxia-inducible factor 1 signaling and modulate the airway immune response. Infect Immun 2014; 82:3531-41. [PMID: 24914220 DOI: 10.1128/iai.00674-13] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Gastroesophageal reflux (GER) frequently occurs in patients with respiratory disease and is particularly prevalent in patients with cystic fibrosis. GER is a condition in which the duodenogastric contents of the stomach leak into the esophagus, in many cases resulting in aspiration into the respiratory tract. As such, the presence of GER-derived bile acids (BAs) has been confirmed in the bronchoalveolar lavage fluid and sputum of affected patients. We have recently shown that bile causes cystic fibrosis-associated bacterial pathogens to adopt a chronic lifestyle and may constitute a major host trigger underlying respiratory infection. The current study shows that BAs elicit a specific response in humans in which they repress hypoxia-inducible factor 1α (HIF-1α) protein, an emerging master regulator in response to infection and inflammation. HIF-1α repression was shown to occur through the 26S proteasome machinery via the prolyl hydroxylase domain (PHD) pathway. Further analysis of the downstream inflammatory response showed that HIF-1α repression by BAs can significantly modulate the immune response of airway epithelial cells, correlating with a decrease in interleukin-8 (IL-8) production, while IL-6 production was strongly increased. Importantly, the effects of BAs on cytokine production can also be more dominant than the bacterium-mediated effects. However, the effect of BAs on cytokine levels cannot be fully explained by their ability to repress HIF-1α, which is not surprising, given the complexity of the immune regulatory network. The suppression of HIF-1 signaling by bile acids may have a significant influence on the progression and outcome of respiratory disease, and the molecular mechanism underpinning this response warrants further investigation.
Collapse
|
26
|
Aspirated bile: a major host trigger modulating respiratory pathogen colonisation in cystic fibrosis patients. Eur J Clin Microbiol Infect Dis 2014; 33:1763-71. [PMID: 24816901 PMCID: PMC4182646 DOI: 10.1007/s10096-014-2133-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 04/21/2014] [Indexed: 10/30/2022]
Abstract
Chronic respiratory infections are a leading global cause of morbidity and mortality. However, the molecular triggers that cause respiratory pathogens to adopt persistent and often untreatable lifestyles during infection remain largely uncharacterised. Recently, bile aspiration caused by gastro-oesophageal reflux (GOR) has emerged as a significant complication associated with respiratory disease, and cystic fibrosis (CF) in particular. Based on our previous finding that the physiological concentrations of bile influence respiratory pathogens towards a chronic lifestyle in vitro, we investigated the impact of bile aspiration on the lung microbiome of respiratory patients. Sputum samples (n = 25) obtained from a cohort of paediatric CF patients were profiled for the presence of bile acids using high-resolution liquid chromatography-mass spectrometry (LC-MS). Pyrosequencing was performed on a set of ten DNA samples that were isolated from bile aspirating (n = 5) and non-bile aspirating (n = 5) patients. Both denaturing gradient gel electrophoresis (DGGE) and pyrosequencing revealed significantly reduced biodiversity and richness in the sputum samples from bile aspirating patients when compared with non-aspirating patients. Families and genera associated with the pervasive CF microbiome dominated aspirating patients, while bacteria associated with the healthy lung were most abundant in non-aspirating patients. Bile aspiration linked to GOR is emerging as a major host trigger of chronic bacterial infections. The markedly reduced biodiversity and increased colonisation by dominant proteobacterial CF-associated pathogens observed in the sputum of bile aspirating patients suggest that bile may play a major role in disease progression in CF and other respiratory diseases.
Collapse
|
27
|
Mott LS, Park J, Gangell CL, de Klerk NH, Sly PD, Murray CP, Stick SM. Distribution of early structural lung changes due to cystic fibrosis detected with chest computed tomography. J Pediatr 2013; 163:243-8.e1-3. [PMID: 23357185 DOI: 10.1016/j.jpeds.2012.12.042] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Revised: 10/22/2012] [Accepted: 12/17/2012] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To examine the distribution of early structural lung changes in clinically stable infants and young children with cystic fibrosis using chest computed tomography (CT). STUDY DESIGN This cross-sectional study included 62 children aged 1-6 years with volume-controlled volumetric chest CT scans performed under general anesthesia as part of an early surveillance program. Each lobe was scored for presence and extent of bronchiectasis, mucus plugging, and air trapping using a semiquantitative score. The topographic distribution of structural abnormalities was evaluated by comparing the presence and extent of abnormalities in different lung regions and examining relationships between components. RESULTS Although bronchiectasis was most common in the right upper lobe, overall changes in lung structure were not more common or more extensive in the upper lobes. Rather, bronchiectasis was more common in the right lung (right lung 0.95, left lung 0.68, P = .003), and mucus plugging (upper 0.41, middle 0.41, lower 0.72, P = .028) and air trapping (upper 0.79, middle 0.48, lower 0.96, P < .001) were more common in the lower lobes. The extents of bronchiectasis (P < .001) and air trapping (P = .011) were greater in the right lung. Scans with bronchiectasis were also more likely to have coexisting mucus plugging (P = .008) and air trapping (P < .001). CONCLUSION Early structural lung disease is heterogeneously distributed in the lung. Quantitative scoring tools for studies using chest CT as an end point, and mechanistic studies that seek to better understand the pathogenesis of early cystic fibrosis lung disease, should take account of this differential topographic expression of disease early in life.
Collapse
Affiliation(s)
- Lauren S Mott
- Telethon Institute for Child Health Research and Center for Child Health Research, The University of Western Australia, Perth, Australia.
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Gelfond D, Borowitz D. Gastrointestinal complications of cystic fibrosis. Clin Gastroenterol Hepatol 2013; 11:333-42; quiz e30-1. [PMID: 23142604 DOI: 10.1016/j.cgh.2012.11.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 10/30/2012] [Accepted: 11/01/2012] [Indexed: 02/07/2023]
Abstract
The cystic fibrosis transmembrane regulator protein (CFTR) is an ion channel in the apical surface of epithelial membranes that regulates other ion channels. Dysfunction of CFTR leads to the clinical entity of CF when mutations in CFTR are inherited in an autosomal recessive fashion. Although airway obstruction, inflammation, and infection are usually the most serious consequences of CFTR dysfunction because they lead to respiratory failure, CFTR dysfunction affects the intestinal tract and the pancreatic and hepatobiliary ducts in a similar fashion, leading to significant morbidity. This review outlines pathophysiology and common gastrointestinal ailments in the CF population along with current medical and surgical management.
Collapse
Affiliation(s)
- Daniel Gelfond
- Department of Pediatrics, State University of New York at Buffalo, Buffalo, New York, USA.
| | | |
Collapse
|
29
|
|
30
|
Respiratory pathogens adopt a chronic lifestyle in response to bile. PLoS One 2012; 7:e45978. [PMID: 23049911 PMCID: PMC3458808 DOI: 10.1371/journal.pone.0045978] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 08/27/2012] [Indexed: 11/19/2022] Open
Abstract
Chronic respiratory infections are a major cause of morbidity and mortality, most particularly in Cystic Fibrosis (CF) patients. The recent finding that gastro-esophageal reflux (GER) frequently occurs in CF patients led us to investigate the impact of bile on the behaviour of Pseudomonas aeruginosa and other CF-associated respiratory pathogens. Bile increased biofilm formation, Type Six Secretion, and quorum sensing in P. aeruginosa, all of which are associated with the switch from acute to persistent infection. Furthermore, bile negatively influenced Type Three Secretion and swarming motility in P. aeruginosa, phenotypes associated with acute infection. Bile also modulated biofilm formation in a range of other CF-associated respiratory pathogens, including Burkholderia cepacia and Staphylococcus aureus. Therefore, our results suggest that GER-derived bile may be a host determinant contributing to chronic respiratory infection.
Collapse
|
31
|
Mousa HM, Woodley FW. Gastroesophageal reflux in cystic fibrosis: current understandings of mechanisms and management. Curr Gastroenterol Rep 2012; 14:226-235. [PMID: 22528661 DOI: 10.1007/s11894-012-0261-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Cystic fibrosis (CF) is an inherited disease that affects both the lungs and the digestive system in children and adults. Thick mucus fills the gut and blocks lumens of the pancreas and hepatobiliary systems, creating insufficient pancreas function and liver disease. Chronic gastrointestinal (GI) complications, including intestinal obstruction, occur in neonates, and poor digestion and gastroesophageal reflux disease (GERD) in children. Although GI symptoms tend to improve with age, CF and associated GERD eventually create respiratory insufficiency; the only available treatment option at this stage is a bilateral lung transplant, which carries considerable morbidity and mortality. While GERD may reoccur as a complication of lung transplantation, GERD symptoms are often reduced following a fundoplication.
Collapse
Affiliation(s)
- Hayat M Mousa
- Center for Advanced Research in Neuromuscular Gastrointestinal Disorders, The Ohio State University, Nationwide Children's Hospital, Columbus, OH 43205, USA.
| | | |
Collapse
|
32
|
Palm K, Sawicki G, Rosen R. The impact of reflux burden on Pseudomonas positivity in children with cystic fibrosis. Pediatr Pulmonol 2012; 47:582-7. [PMID: 22162484 DOI: 10.1002/ppul.21598] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 10/03/2011] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Nonacid gastroesophageal reflux (GER), particularly in patients taking acid suppression, has been implicated as a cause of respiratory infections. We hypothesize that children with cystic fibrosis (CF) and a higher nonacid reflux burden have greater rates of Pseudomonas aeruginosa (Pa) infection than patients with a lower reflux burden. STUDY DESIGN We reviewed the multichannel intraluminal impedance (pH-MII) tracings of 35 patients with CF between 2003 and 2010. We compared the reflux profiles between those patients who were Pa positive and Pa negative. RESULTS The mean age was 13.5 ± 5.8 years. Twenty-seven patients (76%) were Pa positive. Ninety seven percent of patients were taking proton pump inhibitors during pH-MII testing. The mean percentage of time pH was <4 was 8.5 ± 12%. Pa patients had a significantly higher total, acid and proximal nonacid reflux burden (P < 0.009). There was a negative correlation between nonacid reflux burden and FEV1 (r = -0.397, P = 0.03) and between total number of reflux events and FEV1 (r = -0.474, P = 0.009). After adjusting for age and FEV1, total reflux burden remains significantly associated with Pa positivity (P = 0.055). CONCLUSIONS Increased reflux burden may predispose patients to Pa infection and worse lung function.
Collapse
Affiliation(s)
- Kara Palm
- Division of Respiratory Diseases, Children's Hospital Boston, Boston, Massachusetts, USA
| | | | | |
Collapse
|
33
|
van der Doef HPJ, Kokke FTM, van der Ent CK, Houwen RHJ. Intestinal obstruction syndromes in cystic fibrosis: meconium ileus, distal intestinal obstruction syndrome, and constipation. Curr Gastroenterol Rep 2011; 13:265-70. [PMID: 21384135 PMCID: PMC3085752 DOI: 10.1007/s11894-011-0185-9] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Meconium ileus at birth, distal intestinal obstruction syndrome (DIOS), and constipation are an interrelated group of intestinal obstruction syndromes with a variable severity of obstruction that occurs in cystic fibrosis patients. Long-term follow-up studies show that today meconium ileus is not a risk factor for impaired nutritional status, pulmonary function, or survival. DIOS and constipation are frequently seen in cystic fibrosis patients, especially later in life; genetic, dietary, and other associations have been explored. Diagnosis of DIOS is based on suggestive symptoms, with a right lower quadrant mass confirmed on abdominal radiography, whereas symptoms of constipation are milder and of longer standing. In DIOS, early aggressive laxative treatment with oral laxatives (polyethylene glycol) or intestinal lavage with balanced osmotic electrolyte solution and rehydration is required, which now makes the need for surgical interventions rare. Constipation can generally be well controlled with polyethylene glycol maintenance treatment.
Collapse
Affiliation(s)
- Hubert P J van der Doef
- Department of Pediatric Gastroenterology [KE.04.133.1], University Medical Center Utrecht, Postbox 85090, 3508 AB Utrecht, The Netherlands.
| | | | | | | |
Collapse
|
34
|
Higton A, Collins S, Bilton D. Gastroesophageal reflux causing nutritional failure and vomiting in a teenager with cystic fibrosis and respiratory failure. J R Soc Med 2011; 104 Suppl 1:S44-8. [PMID: 21719893 DOI: 10.1258/jrsm.2011.s11108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Alexandra Higton
- Department of Respiratory Medicine, Frimley Park Hospital, Frimley, Surrey, UK.
| | | | | |
Collapse
|