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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.
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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
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Al-Momani H, Perry A, Nelson A, Stewart CJ, Jones R, Krishnan A, Robertson A, Bourke S, Doe S, Cummings S, Anderson A, Forrest T, Forrest I, Griffin M, Wilcox M, Brodlie M, Pearson J, Ward C. Exposure to bile and gastric juice can impact the aerodigestive microbiome in people with cystic fibrosis. Sci Rep 2022; 12:11114. [PMID: 35773410 PMCID: PMC9247099 DOI: 10.1038/s41598-022-15375-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 06/23/2022] [Indexed: 11/19/2022] Open
Abstract
Studies of microbiota reveal inter-relationships between the microbiomes of the gut and lungs. This relationship may influence the progression of lung disease, particularly in patients with cystic fibrosis (CF), who often experience extraoesophageal reflux (EOR). Despite identifying this relationship, it is not well characterised. Our hypothesis is that the gastric and lung microbiomes in CF are related, with the potential for aerodigestive pathophysiology. We evaluated gastric and sputum bacterial communities by culture and 16S rRNA gene sequencing in 13 CF patients. Impacts of varying levels of bile acids, pepsin and pH on patient isolates of Pseudomonas aeruginosa (Pa) were evaluated. Clonally related strains of Pa and NTM were identified in gastric and sputum samples from patients with symptoms of EOR. Bacterial diversity was more pronounced in sputa compared to gastric juice. Gastric and lung bile and pepsin levels were associated with Pa biofilm formation. Analysis of the aerodigestive microbiomes of CF patients with negative sputa indicates that the gut can be a reservoir of Pa and NTM. This combined with the CF patient's symptoms of reflux and potential aspiration, highlights the possibility of communication between microorganisms of the gut and the lungs. This phenomenon merits further research.
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Affiliation(s)
- Hafez Al-Momani
- Basic Medical Science Department, School of Medicine, The Hashemite University, Zarqa, Jordan
| | - Audrey Perry
- Department of Microbiology, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE7 7DN, UK
| | - Andrew Nelson
- Faculty of Health and Life Sciences, Northumbria University, Ellison Place, Newcastle upon Tyne, NE1 8ST, UK
| | - Christopher J Stewart
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Rhys Jones
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Amaran Krishnan
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Andrew Robertson
- NHS Fife and Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Stephen Bourke
- Adult Cystic Fibrosis Centre and Northern Oesophago-Gastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
| | - Simon Doe
- Adult Cystic Fibrosis Centre and Northern Oesophago-Gastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
| | - Stephen Cummings
- School of Science and Engineering, Teesside University, Middlesbrough, TS1 3BA, UK
| | - Alan Anderson
- Adult Cystic Fibrosis Centre and Northern Oesophago-Gastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
| | - Tara Forrest
- Adult Cystic Fibrosis Centre and Northern Oesophago-Gastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
| | - Ian Forrest
- Adult Cystic Fibrosis Centre and Northern Oesophago-Gastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
| | - Michael Griffin
- Adult Cystic Fibrosis Centre and Northern Oesophago-Gastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
| | - Matthew Wilcox
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Malcolm Brodlie
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
- Paediatric Respiratory Medicine, Great North Children's Hospital, Newcastle upon Tyne Hospitals, Newcastle upon Tyne, UK
| | - Jeffrey Pearson
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Christopher Ward
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK.
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Freswick PN, Reid EK, Mascarenhas MR. Pancreatic Enzyme Replacement Therapy in Cystic Fibrosis. Nutrients 2022; 14:nu14071341. [PMID: 35405954 PMCID: PMC9003370 DOI: 10.3390/nu14071341] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/16/2022] Open
Abstract
While typically considered a pulmonary disease, cystic fibrosis patients develop significant nutritional complications and comorbidities, especially those who are pancreatic insufficient. Clinicians must have a high suspicion for cystic fibrosis among patients with clinical symptoms of pancreatic insufficiency, and pancreatic enzymatic replacement therapy (PERT) must be urgently initiated. PERT presents a myriad of considerations for patients and their supporting dieticians and clinicians, including types of administration, therapy failures, and complications.
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Affiliation(s)
- Peter N. Freswick
- Helen DeVos Children’s Hospital, Grand Rapids, MI 49503, USA
- Correspondence:
| | - Elizabeth K. Reid
- Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (E.K.R.); (M.R.M.)
| | - Maria R. Mascarenhas
- Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (E.K.R.); (M.R.M.)
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Ng SM, Moore HS. Drug therapies for reducing gastric acidity in people with cystic fibrosis. Cochrane Database Syst Rev 2021; 4:CD003424. [PMID: 33905540 PMCID: PMC8079129 DOI: 10.1002/14651858.cd003424.pub5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Malabsorption of fat and protein contributes to poor nutritional status in people with cystic fibrosis. Impaired pancreatic function may also result in increased gastric acidity, leading in turn to heartburn, peptic ulcers and the impairment of oral pancreatic enzyme replacement therapy. The administration of gastric acid-reducing agents has been used as an adjunct to pancreatic enzyme therapy to improve absorption of fat and gastro-intestinal symptoms in people with cystic fibrosis. It is important to establish the evidence regarding potential benefits of drugs that reduce gastric acidity in people with cystic fibrosis. This is an update of a previously published review. OBJECTIVES To assess the effect of drug therapies for reducing gastric acidity for: nutritional status; symptoms associated with increased gastric acidity; fat absorption; lung function; quality of life and survival; and to determine if any adverse effects are associated with their use. SEARCH METHODS We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group Trials Register which comprises references identified from comprehensive electronic and non-electronic database searches, handsearches of relevant journals, abstract books and conference proceedings. Both authors double checked the reference lists of the searches Most recent search of the Group's Trials Register: 26 April 2021. On the 26 April 2021 further searches were conducted on the clinicaltrials.gov register to identify any ongoing trials that may be of relevance. The WHO ICTRP database was last searched in 2020 and is not currently available for searching due to the Covid-19 pandemic. SELECTION CRITERIA All randomised and quasi-randomised trials involving agents that reduce gastric acidity compared to placebo or a comparator treatment. DATA COLLECTION AND ANALYSIS Both authors independently selected trials, assessed trial quality and extracted data. MAIN RESULTS The searches identified 40 trials; 17 of these, with 273 participants, were suitable for inclusion, but the number of trials assessing each of the different agents was small. Seven trials were limited to children and four trials enrolled only adults. Meta-analysis was not performed, 14 trials were of a cross-over design and we did not have the appropriate information to conduct comprehensive meta-analyses. All the trials were run in single centres and duration ranged from five days to six months. The included trials were generally not reported adequately enough to allow judgements on risk of bias. However, one trial found that drug therapies that reduce gastric acidity improved gastro-intestinal symptoms such as abdominal pain; seven trials reported significant improvement in measures of fat malabsorption; and two trials reported no significant improvement in nutritional status. Only one trial reported measures of respiratory function and one trial reported an adverse effect with prostaglandin E2 analogue misoprostol. No trials have been identified assessing the effectiveness of these agents in improving quality of life, the complications of increased gastric acidity, or survival. AUTHORS' CONCLUSIONS Trials have shown limited evidence that agents that reduce gastric acidity are associated with improvement in gastro-intestinal symptoms and fat absorption. Currently, there is insufficient evidence to indicate whether there is an improvement in nutritional status, lung function, quality of life, or survival. Furthermore, due to the unclear risks of bias in the included trials, we are unable to make firm conclusions based on the evidence reported therein. We therefore recommend that large, multicentre, randomised controlled clinical trials are undertaken to evaluate these interventions.
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Affiliation(s)
- Sze May Ng
- Department of Paediatrics, Southport & Ormskirk NHS Trust, Ormskirk District General Hospital, Ormskirk, UK
| | - Helen S Moore
- Department of Paediatrics, Southport & Ormskirk NHS Trust, Ormskirk District General Hospital, Ormskirk, UK
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Impact of gastrointestinal tract variability on oral drug absorption and pharmacokinetics: An UNGAP review. Eur J Pharm Sci 2021; 162:105812. [PMID: 33753215 DOI: 10.1016/j.ejps.2021.105812] [Citation(s) in RCA: 140] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/19/2021] [Accepted: 03/16/2021] [Indexed: 12/17/2022]
Abstract
The absorption of oral drugs is frequently plagued by significant variability with potentially serious therapeutic consequences. The source of variability can be traced back to interindividual variability in physiology, differences in special populations (age- and disease-dependent), drug and formulation properties, or food-drug interactions. Clinical evidence for the impact of some of these factors on drug pharmacokinetic variability is mounting: e.g. gastric pH and emptying time, small intestinal fluid properties, differences in pediatrics and the elderly, and surgical changes in gastrointestinal anatomy. However, the link of colonic factors variability (transit time, fluid composition, microbiome), sex differences (male vs. female) and gut-related diseases (chronic constipation, anorexia and cachexia) to drug absorption variability has not been firmly established yet. At the same time, a way to decrease oral drug pharmacokinetic variability is provided by the pharmaceutical industry: clinical evidence suggests that formulation approaches employed during drug development can decrease the variability in oral exposure. This review outlines the main drivers of oral drug exposure variability and potential approaches to overcome them, while highlighting existing knowledge gaps and guiding future studies in this area.
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Calvo-Lerma J, Roca M, Boon M, Colombo C, de Koning B, Fornés-Ferrer V, Masip E, Garriga M, Bulfamante A, Asensio-Grau A, Andrés A, de Boeck K, Hulst J, Ribes-Koninckx C. Association between faecal pH and fat absorption in children with cystic fibrosis on a controlled diet and enzyme supplements dose. Pediatr Res 2021; 89:205-210. [PMID: 32247283 DOI: 10.1038/s41390-020-0860-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/31/2019] [Accepted: 02/19/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Despite treatment with pancreatic enzyme replacement therapy (PERT), patients with cystic fibrosis (CF) can still suffer from fat malabsorption. A cause could be low intestinal pH disabling PERT. The aim of this study was to assess the association between faecal pH (as intestinal pH surrogate) and coefficient of fat absorption (CFA). Additionally, faecal free fatty acids (FFAs) were quantified to determine the amount of digested, but unabsorbed fat. METHODS In a 24-h pilot study, CF patients followed a standardised diet with fixed PERT doses, corresponding to theoretical optimal doses determined by an in vitro digestion model. Study variables were faecal pH, fat and FFA excretion, CFA and transit time. Linear mixed regression models were applied to explore associations. RESULTS In 43 patients, median (1st, 3rd quartile) faecal pH and CFA were 6.1% (5.8, 6.4) and 90% (84, 94), and they were positively associated (p < 0.001). An inverse relationship was found between faecal pH and total fat excretion (p < 0.01), as well as total FFA (p = 0.048). Higher faecal pH was associated with longer intestinal transit time (p = 0.049) and the use of proton pump inhibitors (p = 0.009). CONCLUSIONS Although the clinical significance of faecal pH is not fully defined, its usefulness as a surrogate biomarker for intestinal pH should be further explored. IMPACT Faecal pH is a physiological parameter that may be related to intestinal pH and may provide important physiopathological information on CF-related pancreatic insufficiency. Faecal pH is correlated with fat absorption, and this may explain why pancreatic enzyme replacement therapy is not effective in all patients with malabsorption related to CF. Use of proton pump inhibitors is associated to higher values of faecal pH. Faecal pH could be used as a surrogate biomarker to routinely monitor the efficacy of pancreatic enzyme replacement therapy in clinical practice. Strategies to increase intestinal pH in children with cystic fibrosis should be targeted.
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Affiliation(s)
- Joaquim Calvo-Lerma
- Cystic Fibrosis Unit, Instituto de Investigación Sanitaria La Fe de Valencia, 46026, Valencia, Spain. .,Research Institute of Food Engineering for Development, Universitat Politècnica de València, 46022, Valencia, Spain.
| | - Maria Roca
- Cystic Fibrosis Unit, Instituto de Investigación Sanitaria La Fe de Valencia, 46026, Valencia, Spain
| | - Mieke Boon
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals, 3000, Leuven, Belgium
| | - Carla Colombo
- CF Center, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | - Barbara de Koning
- Erasmus Medical Center, Sophia Children's Hospital, Rotterdam, The Netherlands
| | | | - Etna Masip
- Cystic Fibrosis Unit, Instituto de Investigación Sanitaria La Fe de Valencia, 46026, Valencia, Spain
| | - Maria Garriga
- Hospital Universitario Ramón y Cajal, 28034, Madrid, Spain
| | - Anna Bulfamante
- CF Center, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | - Andrea Asensio-Grau
- Research Institute of Food Engineering for Development, Universitat Politècnica de València, 46022, Valencia, Spain
| | - Ana Andrés
- Research Institute of Food Engineering for Development, Universitat Politècnica de València, 46022, Valencia, Spain
| | - Kris de Boeck
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals, 3000, Leuven, Belgium
| | - Jessie Hulst
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
| | - Carmen Ribes-Koninckx
- Cystic Fibrosis Unit, Instituto de Investigación Sanitaria La Fe de Valencia, 46026, Valencia, Spain
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Lieb JG, Patel D, Karnik N, Toskes PP. Study of the gastrointestinal bioavailability of a pancreatic extract product (Zenpep) in chronic pancreatitis patients with exocrine pancreatic insufficiency. Pancreatology 2020; 20:1092-1102. [PMID: 32800653 DOI: 10.1016/j.pan.2020.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/28/2020] [Accepted: 07/10/2020] [Indexed: 12/11/2022]
Abstract
INTRODUCTION The Food and Drug Administration in 2006 required that all pancreatic enzyme products demonstrate bioavailability of lipase, amylase, and protease in the proximal small intestine. METHODS In this phase I open-label, randomized, crossover trial, 17 adult chronic pancreatitis (CP) patients with severe exocrine pancreatic insufficiency (EPI) underwent two separate gastroduodenal perfusion procedures (Dreiling tube suctioning and [14C]-PEG instillation by an attached Dobhoff tube in the duodenal bulb). Patients received Ensure Plus® alone and Ensure Plus with Zenpep (75,000 USP lipase units) in random order. The bioavailability of Zenpep was estimated by comparing the recovery of lipase, amylase, chymotrypsin activity in two treatment conditions. 14C-PEG was used to correct duodenal aspirates volume. The primary efficacy endpoint was lipase delivery in the duodenum after Zenpep administration under fed conditions. Secondary efficacy endpoints included chymotrypsin and amylase delivery, serum CCK levels, and measuring duodenal and gastric pH. RESULTS Zenpep administration with a test meal was associated with significant increase in duodenal aspiration of lipase (p = 0.046), chymotrypsin (p = 0.008), and amylase (p = 0.001), compared to the test meal alone, indicating release of enzymes to the duodenum. Lipase delivery was higher in the pH subpopulation (the efficacy population with acid hypersecretors excluded) (p = 0.01). Recovery of [14C]-PEG was 61%. Zenpep was generally well tolerated. All adverse events were mild and transient. CONCLUSIONS In CP patients with severe EPI, lipase, chymotrypsin and amylase were released rapidly into the duodenum after ingestion of Zenpep plus meal compared to meals alone. Results also reflected the known pH threshold for enzyme release from enteric coated products.
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Affiliation(s)
- John G Lieb
- Section of Gastroenterology, University of Florida, 1549 Gale Lemerand Drive, Gainesville, FL, 32610-3008, USA.
| | - Dhruvan Patel
- Section of Gastroenterology, University of Pennsylvania, 3400 Civic Center Blvd, 7th Floor, Philadelphia, PA, 19104, USA.
| | - Nihaal Karnik
- Department of Internal Medicine, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA.
| | - Phillip P Toskes
- Section of Gastroenterology, University of Florida, 1549 Gale Lemerand Drive, Gainesville, FL, 32610-3008, USA.
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De Sutter PJ, Gasthuys E, Van Braeckel E, Schelstraete P, Van Biervliet S, Van Bocxlaer J, Vermeulen A. Pharmacokinetics in Patients with Cystic Fibrosis: A Systematic Review of Data Published Between 1999 and 2019. Clin Pharmacokinet 2020; 59:1551-1573. [DOI: 10.1007/s40262-020-00932-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Bernhard W. Choline in cystic fibrosis: relations to pancreas insufficiency, enterohepatic cycle, PEMT and intestinal microbiota. Eur J Nutr 2020; 60:1737-1759. [PMID: 32797252 DOI: 10.1007/s00394-020-02358-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/03/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cystic Fibrosis (CF) is an autosomal recessive disorder with life-threatening organ manifestations. 87% of CF patients develop exocrine pancreas insufficiency, frequently starting in utero and requiring lifelong pancreatic enzyme substitution. 99% develop progressive lung disease, and 20-60% CF-related liver disease, from mild steatosis to cirrhosis. Characteristically, pancreas, liver and lung are linked by choline metabolism, a critical nutrient in CF. Choline is a tightly regulated tissue component in the form of phosphatidylcholine (Ptd'Cho) and sphingomyelin (SPH) in all membranes and many secretions, particularly of liver (bile, lipoproteins) and lung (surfactant, lipoproteins). Via its downstream metabolites, betaine, dimethylglycine and sarcosine, choline is the major one-carbon donor for methionine regeneration from homocysteine. Methionine is primarily used for essential methylation processes via S-adenosyl-methionine. CLINICAL IMPACT CF patients with exocrine pancreas insufficiency frequently develop choline deficiency, due to loss of bile Ptd'Cho via feces. ~ 50% (11-12 g) of hepatic Ptd'Cho is daily secreted into the duodenum. Its re-uptake requires cleavage to lyso-Ptd'Cho by pancreatic and small intestinal phospholipases requiring alkaline environment. Impaired CFTR-dependent bicarbonate secretion, however, results in low duodenal pH, impaired phospholipase activity, fecal Ptd'Cho loss and choline deficiency. Low plasma choline causes decreased availability for parenchymal Ptd'Cho metabolism, impacting on organ functions. Choline deficiency results in hepatic choline/Ptd'Cho accretion from lung tissue via high density lipoproteins, explaining the link between choline deficiency and lung function. Hepatic Ptd'Cho synthesis from phosphatidylethanolamine by phosphatidylethanolamine-N-methyltransferase (PEMT) partly compensates for choline deficiency, but frequent single nucleotide polymorphisms enhance choline requirement. Additionally, small intestinal bacterial overgrowth (SIBO) frequently causes intraluminal choline degradation in CF patients prior to its absorption. As adequate choline supplementation was clinically effective and adult as well as pediatric CF patients suffer from choline deficiency, choline supplementation in CF patients of all ages should be evaluated.
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Affiliation(s)
- Wolfgang Bernhard
- Department of Neonatology, University Children's Hospital, Faculty of Medicine, Eberhard-Karls-University, Calwer Straße 7, 72076, Tübingen, Germany.
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Pathanki AM, Attard JA, Bradley E, Powell-Brett S, Dasari BVM, Isaac JR, Roberts KJ, Chatzizacharias NA. Pancreatic exocrine insufficiency after pancreaticoduodenectomy: Current evidence and management. World J Gastrointest Pathophysiol 2020; 11:20-31. [PMID: 32318312 PMCID: PMC7156847 DOI: 10.4291/wjgp.v11.i2.20] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/13/2020] [Accepted: 03/22/2020] [Indexed: 02/06/2023] Open
Abstract
Pancreaticoduodenectomy (PD) is the commonest procedure performed for pancreatic cancer. Pancreatic exocrine insufficiency (PEI) may be caused or exacerbated by surgery and remains underdiagnosed and undertreated. The aim of this review was to ascertain the incidence of PEI, its consequences and management in the setting of PD for indications other than chronic pancreatitis. A literature search of databases (MEDLINE, EMBASE, Cochrane and Scopus) was carried out with the MeSH terms “pancreatic exocrine insufficiency” and “Pancreaticoduodenectomy”. Studies that analysed PEI and its complications in the setting of PD for malignant and benign disease were included. Studies reporting PEI in the setting of PD for chronic pancreatitis, conference abstracts and reviews were excluded. The incidence of PEI approached 100% following PD in some series. The pre-operative incidence varied depending on the characteristics of the patient cohort and it was higher (46%-93%) in series where pancreatic cancer was the predominant indication for surgery. Variability was also recorded with regards to the method used for the diagnosis and evaluation of pancreatic function and malabsorption. Pancreatic enzyme replacement therapy is the mainstay of the management. PEI is common and remains undertreated after PD. Future studies are required for the identification of a well-tolerated, reliable and reproducible diagnostic test in this setting.
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Affiliation(s)
- Adithya M Pathanki
- Department of HPB and Liver Transplantation, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
| | - Joseph A Attard
- Department of HPB and Liver Transplantation, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
| | - Elizabeth Bradley
- Department of Nutrition and Dietetics, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
| | - Sarah Powell-Brett
- Department of HPB and Liver Transplantation, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
| | - Bobby V M Dasari
- Department of HPB and Liver Transplantation, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
| | - John R Isaac
- Department of HPB and Liver Transplantation, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
| | - Keith J Roberts
- Department of HPB and Liver Transplantation, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
| | - Nikolaos A Chatzizacharias
- Department of HPB and Liver Transplantation, Queen Elizabeth Hospital, University Hospitals Birmingham, Birmingham B15 2TH, United Kingdom
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Narita M, Hata H, Matsusue R, Yamaguchi T, Otani T, Ikai I. Is the remnant pancreas still working over a year after surgery in patients undergoing pancreaticoduodenectomy with reconstruction by pancreaticogastrostomy? Pancreatology 2020; 20:217-222. [PMID: 31862231 DOI: 10.1016/j.pan.2019.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/11/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pancreaticogastrostomy (PG) has been widely used as an alternative to pancreatojejunostomy (PJ) in patients undergoing pancreaticoduodenectomy (PD), but its long-term exocrine function remains unclear. The present study aimed to measure the secretion of pancreatic α-amylase (p-AMY) into the gastric cavity in patients who underwent PG reconstruction after PD over 1 year after surgery and to evaluate the relationship between gastric p-AMY level and clinically available indirect tests. METHODS Clinical records of 39 patients who underwent PG reconstruction after PD were reviewed. Pancreatic exocrine function was evaluated over 1 year after surgery using the following methods: 1) Measurement of p-AMY level in gastric fluids (gastric p-AMY level) during routine gastrointestinal endoscopy, 2) Qualitative faecal fat determination by Sudan III staining on faeces and 3) Pancreatic function diagnostic (PFD) test using oral administration of N-benzoyl-l-tyrosyl-p-aminobenzoic acid. RESULTS Gastric p-AMY level was detectable in 31 of 39 patients (79%), and 12 patients (30.8%) had steatorrhea over a year after surgery. Patients with steatorrhea had significantly lower gastric p-AMY level, larger diameter of remnant main pancreatic duct (MPD) and larger pancreatic duct to parenchymal thickness ratio than those without steatorrhea (84 IU/L vs 7979 IU/L, respectively; P < 0.001, 5.3 mm vs 3.2 mm, respectively; P = 0.001, and 0.38 vs 0.23, respectively; P = 0.007). Receiver operating characteristic analysis showed that the cut-off value of the diameter of the remnant MPD to predict steatorrhea was 3.5 mm (sensitivity, 92.3%; specificity, 70.4%). PFD test was not associated with any clinical data. CONCLUSIONS Pancreatic enzyme was detected in 79% of patients having PG reconstruction. Diameter of remnant MPD >3.5 mm and pancreatic parenchymal atrophy may be surrogate markers of postoperative exocrine insufficiency following PD.
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Affiliation(s)
- Masato Narita
- Department of Surgery, National Hospital Organisation, Kyoto Medical Centre,1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan.
| | - Hiroaki Hata
- Department of Surgery, National Hospital Organisation, Kyoto Medical Centre,1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
| | - Ryo Matsusue
- Department of Surgery, National Hospital Organisation, Kyoto Medical Centre,1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
| | - Takashi Yamaguchi
- Department of Surgery, National Hospital Organisation, Kyoto Medical Centre,1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
| | - Tetsushi Otani
- Department of Surgery, National Hospital Organisation, Kyoto Medical Centre,1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
| | - Iwao Ikai
- Department of Surgery, National Hospital Organisation, Kyoto Medical Centre,1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
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Exocrine Pancreatic Insufficiency and Nutritional Complications. Respir Med 2020. [DOI: 10.1007/978-3-030-42382-7_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Vermeulen F, Proesmans M, Vermaelen M, Boon M, De Boeck K. Isolation of Enterobacteriaceae in airway samples is associated with worse outcome in preschool children with cystic fibrosis. J Cyst Fibros 2019; 19:365-369. [PMID: 31690526 DOI: 10.1016/j.jcf.2019.10.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Increased abundance of Enterobacteriaceae(EB) in the respiratory microbiome of young CF patients was reported to precede Pseudomonas aeruginosa(PA) colonisation. We explored whether impending PA colonisation can be predicted by growth of EB in routine airway cultures and whether EB contribute to CF lung disease severity. METHODS We retrospectively studied the records of 62 children with CF for growth of EB and PA during the first 5 years of life and subsequent best lung function at ages 5-7 and 9-11 years. RESULTS At least one EB positive month occurred in 36/62 (58%) patients. Median (IQR) age at first EB isolation was 0.4 (0.2-0.8) years. PA isolation before age 5 was more frequent in the EB positive (23/36, 54%) than in EB negative children (10/26, 38%; p = 0.048). EB isolation preceded PA isolation in 19/23 (83%) cases (p = 0.003). Median (IQRf) FEV1 at age 5 to 7 years was 105% (94-117) in the EB positive group and 108% (102-115) in the EB negative group (p = 0.154). At age 9-11, FEV1 was lower in EB positive children (99%(88-105) vs 105%(96-110); p = 0.035). Only PA isolation (p = 0.002) before age 5 years was a significant predictor of FEV1 at age 5-7 years. Both EB isolation (p = 0.033) and PA isolation (p = 0.023) were predictors of the FEV1 at age 9-11 years. CONCLUSION In preschool children with CF, EB were isolated in just over half of the children. In that subgroup PA isolation was more common. Both EB and PA isolation are associated with worse lung function at later age.
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Affiliation(s)
- Francois Vermeulen
- Pediatric Pulmonology, Department of Pediatrics, University of Leuven, Leuven, Belgium.
| | - Marijke Proesmans
- Pediatric Pulmonology, Department of Pediatrics, University of Leuven, Leuven, Belgium
| | - Mathias Vermaelen
- Pediatric Pulmonology, Department of Pediatrics, University of Leuven, Leuven, Belgium
| | - Mieke Boon
- Pediatric Pulmonology, Department of Pediatrics, University of Leuven, Leuven, Belgium
| | - Kris De Boeck
- Pediatric Pulmonology, Department of Pediatrics, University of Leuven, Leuven, Belgium
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Calvo-Lerma J, Fornés-Ferrer V, Heredia A, Andrés A. In vitro digestion models to assess lipolysis: The impact of the simulated conditions of gastric and intestinal pH, bile salts and digestive fluids. Food Res Int 2019; 125:108511. [PMID: 31554063 DOI: 10.1016/j.foodres.2019.108511] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/31/2019] [Accepted: 06/21/2019] [Indexed: 10/26/2022]
Abstract
In vitro digestion models are a valid methodology to study nutrient hydrolysis by simulating standard physiological gastrointestinal conditions. However, there are pathologies in which some conditions are affected, which should be considered in the design of an in vitro digestion study. Our work aims at elucidating the role of different gastrointestinal conditions on lipolysis. In the context of exocrine pancreatic insufficiency, gastric pH, intestinal pH, bile salts composition, bile salts concentration, fat concentration in the digestion medium and volumetric ratio digestion fluid/food were the selected study parameters. The pH-stat method was applied to assess lipolysis extent and kinetics. Descriptive results were summarised in digestibility curves and beta regression models were used to explain the effect (odds ratio, OR) of the studied conditions on lipolysis. Additionally, distribution of emulsion droplets was measured and optical microscopy images of fat globules were taken in a selection of experimental conditions. Results showed that intestinal pH was the variable with the highest effect on lipolysis (OR 22.86, p < 0.001), followed by fat concentration in the digestion medium (OR 6.76, p < 0.001) and bile salts concentration (OR 1.56, p < 0.001). Overall, lipolysis was significantly associated with particle size (OR - 6.98, p < 0.001). We conclude that the assessment of lipolysis by means of in vitro digestion models is sensitive to the simulated gastrointestinal conditions, which should be adapted to the real physiological conditions occurring in altered health conditions.
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Affiliation(s)
- Joaquim Calvo-Lerma
- Universitat Politècnica de València, Instituto de Ingeniería de Alimentos para el Desarrollo, Spain; Instituto de Investigación Sanitaria La Fe, Spain.
| | | | - Ana Heredia
- Universitat Politècnica de València, Instituto de Ingeniería de Alimentos para el Desarrollo, Spain
| | - Ana Andrés
- Universitat Politècnica de València, Instituto de Ingeniería de Alimentos para el Desarrollo, Spain
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Calvo-Lerma J, Hulst J, Boon M, Colombo C, Masip E, Ruperto M, Fornés-Ferrer V, van der Wiel E, Claes I, Garriga M, Roca M, Crespo-Escobar P, Bulfamante A, Woodcock S, Martínez-Barona S, Andrés A, de Boeck K, Ribes-Koninckx C. Clinical validation of an evidence-based method to adjust Pancreatic Enzyme Replacement Therapy through a prospective interventional study in paediatric patients with Cystic Fibrosis. PLoS One 2019; 14:e0213216. [PMID: 30861039 PMCID: PMC6413926 DOI: 10.1371/journal.pone.0213216] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/15/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A method to adjust Pancreatic Enzyme Replacement Therapy in Cystic Fibrosis is not currently available. OBJECTIVES To assess the in vivo efficacy of a method to adjust the dose of enzymatic supplement in CF extrapolated from previous in vitro digestion studies (theoretical optimal dose, TOD). Secondly, to assess how individual patient characteristics influence the expected coefficient of fat absorption (CFA) and thus to identify an individual correction factor to improve TOD. METHODS A prospective interventional study in 43 paediatric patients with CF from 5 European centres. They followed a 24h fixed diet with the theoretical optimal dose for each meal. Faecal collection was carried out between colorimetric markers in order to include all the faeces corresponding to the fixed diet. Beta regression models were applied to assess the associations of individual patient characteristics with the CFA. RESULTS Median CFA was 90% (84, 94% 1st, 3rd Q.) with no significant differences among centres. Intestinal transit time was positively associated with CFA (p = 0.007), but no statistical associations were found with and age, gender, phenotype or BMI. Regression model showed no improvement of the in vitro predicted theoretical optimal dose when taking individual patient characteristics into account. CONCLUSION Strict adherence to the theoretical optimal dose of enzymatic supplement for a prescribed meal, led to median CFA levels at the clinical target of 90% with a low variability between patients. The proposed method can be considered as a first approach for an evidence-based method in PERT dosing based on food characteristics. Results have to be confirmed in free dietary settings.
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Affiliation(s)
- Joaquim Calvo-Lerma
- Instituto de Investigación Sanitaria La Fe de Valencia, Valencia, Spain
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
| | - Jessie Hulst
- Erasmus Medical Center, Sophia Children’s Hospital, GD Rotterdam, the Netherlands
| | - Mieke Boon
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Carla Colombo
- CF Center, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Via Commenda 9, Milan, Italy
| | - Etna Masip
- Instituto de Investigación Sanitaria La Fe de Valencia, Valencia, Spain
| | - Mar Ruperto
- Hospital Universitario Ramón y Cajal, Carretera Colmenar Viejo km 9, Madrid, Spain
| | | | - Els van der Wiel
- Erasmus Medical Center, Sophia Children’s Hospital, GD Rotterdam, the Netherlands
| | - Ine Claes
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Maria Garriga
- Hospital Universitario Ramón y Cajal, Carretera Colmenar Viejo km 9, Madrid, Spain
| | - Maria Roca
- Instituto de Investigación Sanitaria La Fe de Valencia, Valencia, Spain
| | | | - Anna Bulfamante
- CF Center, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Via Commenda 9, Milan, Italy
| | - Sandra Woodcock
- Erasmus Medical Center, Sophia Children’s Hospital, GD Rotterdam, the Netherlands
| | | | - Ana Andrés
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
| | - Kris de Boeck
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
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Escobedo Monge MF, Barrado E, Alonso Vicente C, Redondo Del Río MP, Marugán de Miguelsanz JM. Zinc Nutritional Status in Patients with Cystic Fibrosis. Nutrients 2019; 11:E150. [PMID: 30642010 PMCID: PMC6356838 DOI: 10.3390/nu11010150] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/03/2019] [Accepted: 01/07/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Zinc is an essential nutrient for all forms of life and its deficiency affects the normal growth and development of human beings. OBJECTIVE The main aim was to investigate zinc nutritional status by serum zinc concentration (SZC) and dietary zinc intake and their association in cystic fibrosis (CF) patients. METHODS A cross-sectional study was conducted in CF patients. Anthropometric measurements and respiratory and pancreatic tests were conducted. Hypozincemia was determined by SZC while using atomic absorption spectrophotometry and dietary zinc deficiency by prospective 72-h dietary surveys. RESULTS Mean SZC (87.2 ± 16.7 μg/dL) and dietary zinc intake (97 ± 26.9% Dietary Reference Intake) were normal. Three of 17 patients with CF (17.6%) had hypozincemia and four (23.5%) had a dietary zinc deficiency. No patient with dietary zinc deficiency had hypozincemia. A positive and significant association was observed between SZC and Z-score of BMI-for-age (p = 0.048) and weight-for-height (p = 0.012) and between dietary zinc intake and energy intake (EI, p = 0.036) and Z-score of weight-for-high (p = 0.029). CONCLUSION SZC was associated with the nutritional status, expressed as BMI (Body Mass Index) and weight-for-height Z score, and dietary zinc intake with EI and weight-for-height Z-score. No patient with hypozincemia had dietary zinc deficiency. This situation should alert us to a marginal zinc deficiency and it may explain why there were no overlapping cases between the two groups. We suggest that probably 41% of the cases in this study would be at elevated risk of zinc deficiency and a zinc supplementation may be considered.
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Affiliation(s)
| | - Enrique Barrado
- Department of Analytical Chemistry, Science Faculty, University of Valladolid, Campus Miguel Delibes, Calle Paseo de Belén, 7, 47011 Valladolid, Spain.
| | - Carmen Alonso Vicente
- Department of Paediatrics of the Faculty of Medicine, Valladolid University; Section of Gastroenterology and Pediatric Nutrition, University Clinical Hospital of Valladolid, Avenida Ramón y Cajal, 7, 47005Valladolid, Spain.
| | | | - José Manuel Marugán de Miguelsanz
- Department of Paediatrics of the Faculty of Medicine, Valladolid University; Section of Gastroenterology and Pediatric Nutrition, University Clinical Hospital of Valladolid, Avenida Ramón y Cajal, 7, 47005Valladolid, Spain.
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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.
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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
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Hatton GB, Madla CM, Rabbie SC, Basit AW. Gut reaction: impact of systemic diseases on gastrointestinal physiology and drug absorption. Drug Discov Today 2018; 24:417-427. [PMID: 30453059 DOI: 10.1016/j.drudis.2018.11.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 10/25/2018] [Accepted: 11/13/2018] [Indexed: 12/17/2022]
Abstract
It was in 400 BC that Hippocrates reportedly stated that "death sits in the colon". The growth in our knowledge of the intestinal microbiome, the gut-brain axis and their function and imbalance has distinctly uncovered the complex relationship between the gut to disease predisposition and development, heralding the problem and the solution to disease pathology. Human studies of new drug molecules are typically performed in healthy volunteers and their specific disease indication. Approved drugs, however, are used by patients with diverse disease backgrounds. Here, we review the current literature of the gastrointestinal tract reacting to systemic disease pathology that elicits physiological and functional changes that consequently affect oral drug product performance.
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Affiliation(s)
- Grace B Hatton
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Christine M Madla
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Sarit C Rabbie
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Abdul W Basit
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK.
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19
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Forgerini M, Mieli S, Mastroianni PDC. Safety assessment of omeprazole use: a review. SAO PAULO MED J 2018; 136:557-570. [PMID: 30892487 PMCID: PMC9897136 DOI: 10.1590/1516-3180.2018.0019220318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 03/22/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Risks regarding hospital admission due to adverse drug reactions and drug interactions from use of omeprazole have been reported. The question guiding the present review was "Which adverse events occur in patients using omeprazole in a Food and Drug Administration-approved and/or off-label manner?" It was also proposed to evaluate the safety of use of omeprazole. DESIGN AND SETTING Qualitative narrative review with critical evaluation, in a public university. METHODS The PubMed, SCOPUS, LILACS, SciELO, EMBASE and EBSCO databases were searched on July 31, 2018. Studies evaluating adverse events were screened. RESULTS 72 articles were included, among which 58 reported on adverse drug events (47, adverse drug reactions; 5, drug interactions; and 6, situations of ineffectiveness). 28 adverse drug reactions not described in compendia and drug leaflets were described in these studies: myocardial infarction (6); stroke (2); spontaneous abortion (1); proliferative changes (1); chills (1); heart failure (1); thrombosis (2); and dementia (1), among others. Severe adverse reactions, for instance cardiac problems, Steven-Johnson syndrome and proliferative changes, were identified. The antiplatelet effects of drugs such as clopidogrel, in patients who underwent heart-related surgery, increased the risk of developing cardiac problems, such as cardiovascular death, myocardial infarction and stroke. In newly transplanted patients, decreased absorption of mycophenolate mofetil occurred, thus leading to rejection of transplanted organs. CONCLUSION Use of omeprazole should be monitored primarily in patients with heart disorders using antiplatelet agents concomitantly, and in newly transplanted patients using mycophenolic acid, in order to avoid serious adverse reactions.
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Affiliation(s)
- Marcela Forgerini
- BSc. Pharmacist and Master’s Student in the Postgraduate Program on Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara (SP), Brazil.
| | - Stephania Mieli
- Undergraduate Pharmacy Student, Universidade Estadual Paulista (UNESP), Araraquara (SP), Brazil.
| | - Patrícia de Carvalho Mastroianni
- PhD. Pharmacist and Adjunct Professor, Department of Drugs and Medicines, Universidade Estadual Paulista (UNESP), Araraquara (SP), Brazil.
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Shandro BM, Nagarajah R, Poullis A. Challenges in the management of pancreatic exocrine insufficiency. World J Gastrointest Pharmacol Ther 2018; 9:39-46. [PMID: 30397535 PMCID: PMC6212541 DOI: 10.4292/wjgpt.v9.i5.39] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/06/2018] [Accepted: 10/09/2018] [Indexed: 02/06/2023] Open
Abstract
Pancreatic exocrine insufficiency (PEI) occurs when the insufficient secretion or function of pancreatic enzymes leads to maldigestion, most commonly as a result of chronic pancreatitis and pancreatic cancer. The condition is associated with significant morbidity and reductions in quality of life, even in milder forms. The challenges in approaching this condition include the non-specific presentation of mild to moderate PEI, and the lack of a convenient, accurate diagnostic test in this cohort. Classical symptoms appear late in the disease, and the diagnosis should be considered before steatorrhoea develops. Direct pancreatic function tests are the reference standard for diagnosis, but are invasive and not widely available. The faecal elastase-1 (FE-1) stool test is widely available and has been shown to be as effective as the 13C-mixed triglyceride breath test in more advanced disease. We recommend a pragmatic diagnostic approach that combines clinical history, assessment of nutritional status and measurement of FE-1. The critical first step is to consider the diagnosis. Once the diagnosis is confirmed, pancreatic enzyme replacement therapy should be initiated. The variety of enzyme preparations and recommended dosing regimens can present a challenge when selecting an adequate initial dose. Non-response should be actively sought and addressed in a systematic manner. This article discusses these challenges, and presents a practical approach to the diagnosis and management of PEI.
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Affiliation(s)
- Benjamin Myles Shandro
- Department of Gastroenterology, St George’s University Hospitals NHS Foundation Trust, Tooting, London SW17 0QT, United Kingdom
| | - Rani Nagarajah
- Department of Gastroenterology, St George’s University Hospitals NHS Foundation Trust, Tooting, London SW17 0QT, United Kingdom
| | - Andrew Poullis
- Department of Gastroenterology, St George’s University Hospitals NHS Foundation Trust, Tooting, London SW17 0QT, United Kingdom
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21
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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.
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22
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Gan C, Chen YH, Liu L, Gao JH, Tong H, Tang CW, Liu R. Efficacy and safety of pancreatic enzyme replacement therapy on exocrine pancreatic insufficiency: a meta-analysis. Oncotarget 2017; 8:94920-94931. [PMID: 29212278 PMCID: PMC5706924 DOI: 10.18632/oncotarget.21659] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/21/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Pancreatic enzyme replacement therapy (PERT) is widely applied to patients with exocrine pancreatic insufficiency (EPI), but its effect and safety has not been quantified. Therefore we performed a meta-analysis to determine the efficacy and tolerance of PERT on patients with EPI. MATERIALS AND METHODS PubMed, Medline, Cochrane library database, Evidence-based medicine/clinical trials published before December 2016 were searched by two independent reviewers to identify prospective randomized controlled trials (RCTs). RESULTS Seven RCTs, randomizing a total of 282 patients, were filtrated and assessed qualitatively (Jadad score). PERT increased CFA (WMD: 26.56, 20.35 to 32.76, I2= 79.6%, P < 0.001) compared with baseline, and CFA (WMD: 17.97, 12.61 to 23.34, I2 = 76.7%, P < 0.001) vs. placebo. Meanwhile, CNA, SFE, SNE and SW were significantly improved in PERT compared with baseline and placebo, with no statistical differences in adverse events. Subgroup analysis indicated that standard forms of PERT displayed more effectiveness with significantly decreased heterogeneity, and large sample size also reduced the heterogeneity to some degree. CONCLUSIONS PERT is demonstrated to be effective and tolerable in patients with EPI, especially using standard administration of PERT. Larger and higher quality studies on EPI are demanded to long-term effect of standard PERT treatment.
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Affiliation(s)
- Can Gan
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yan-Hua Chen
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Ling Liu
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Jin-Hang Gao
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Huan Tong
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Cheng-Wei Tang
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Rui Liu
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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Singh VK, Schwarzenberg SJ. Pancreatic insufficiency in Cystic Fibrosis. J Cyst Fibros 2017; 16 Suppl 2:S70-S78. [DOI: 10.1016/j.jcf.2017.06.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 06/30/2017] [Accepted: 06/30/2017] [Indexed: 12/19/2022]
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Struyvenberg MR, Martin CR, Freedman SD. Practical guide to exocrine pancreatic insufficiency - Breaking the myths. BMC Med 2017; 15:29. [PMID: 28183317 PMCID: PMC5301368 DOI: 10.1186/s12916-017-0783-y] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 01/09/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Exocrine pancreatic insufficiency (EPI) is characterized by a deficiency of exocrine pancreatic enzymes, resulting in malabsorption. Numerous conditions account for the etiology of EPI, with the most common being diseases of the pancreatic parenchyma including chronic pancreatitis, cystic fibrosis, and a history of extensive necrotizing acute pancreatitis. Treatment for EPI includes dietary management, lifestyle changes (i.e., decrease in alcohol consumption and smoking cessation), and pancreatic enzyme replacement therapy. DISCUSSION Many diagnostic tests are available to diagnose EPI, however, the criteria of choice remain unclear and the causes for a false-positive test are not yet understood. Despite multiple studies on the treatment of EPI using exogenous pancreatic enzymes, there remains confusion amongst medical practitioners with regard to the best approach to diagnose EPI, as well as dosing and administration of pancreatic enzymes. Appropriate use of diagnostics and treatment approaches using pancreatic enzymes in EPI is essential for patients. This opinion piece aims to address the existing myths, remove the current confusion, and function as a practical guide to the diagnosis and treatment of EPI.
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Affiliation(s)
- Maarten R Struyvenberg
- Beth Israel Deaconess Medical Center, 330 Brookline Ave., Dana 501, Boston, MA, 02215, USA
| | - Camilia R Martin
- Beth Israel Deaconess Medical Center, 330 Brookline Ave., Dana 501, Boston, MA, 02215, USA
| | - Steven D Freedman
- Beth Israel Deaconess Medical Center, 330 Brookline Ave., Dana 501, Boston, MA, 02215, USA.
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25
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Kessler L, Abély M. Atteinte pancréatique exocrine et endocrine dans la mucoviscidose. Arch Pediatr 2016; 23:12S21-12S32. [DOI: 10.1016/s0929-693x(17)30059-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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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.
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Affiliation(s)
| | - Bruno Hauser
- a Department of Pediatrics, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium
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Enteral tube feeding for individuals with cystic fibrosis: Cystic Fibrosis Foundation evidence-informed guidelines. J Cyst Fibros 2016; 15:724-735. [PMID: 27599607 DOI: 10.1016/j.jcf.2016.08.004] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 08/02/2016] [Accepted: 08/15/2016] [Indexed: 01/12/2023]
Abstract
Nutrition is integral to the care of individuals with cystic fibrosis (CF). Better nutritional status is associated with improved pulmonary function. In some individuals with CF, enteral tube feeding can be useful in achieving optimal nutritional status. Current nutrition guidelines do not include detailed recommendations for enteral tube feeding. The Cystic Fibrosis Foundation convened an expert panel to develop enteral tube feeding recommendations based on a systematic review of the evidence and expert opinion. These guidelines address when to consider enteral tube feeding, assessment of confounding causes of poor nutrition in CF, preparation of the patient for placement of the enteral feeding tube, management of the tube after placement and education about enteral feeding. These recommendations are intended to guide the CF care team, individuals with CF, and their families through the enteral tube feeding process.
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Abstract
BACKGROUND Malabsorption of fat and protein contributes to poor nutritional status in people with cystic fibrosis. Impaired pancreatic function may also result in increased gastric acidity, leading in turn to heartburn, peptic ulcers and the impairment of oral pancreatic enzyme replacement therapy. The administration of gastric acid-reducing agents has been used as an adjunct to pancreatic enzyme therapy to improve absorption of fat and gastro-intestinal symptoms in people with cystic fibrosis. It is important to establish the evidence regarding potential benefits of drugs that reduce gastric acidity in people with cystic fibrosis. This is an update of a previously published review. OBJECTIVES To assess the effect of drug therapies for reducing gastric acidity for: nutritional status; symptoms associated with increased gastric acidity; fat absorption; lung function; quality of life and survival; and to determine if any adverse effects are associated with their use. SEARCH METHODS We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group Trials Register which comprises references identified from comprehensive electronic database searches, handsearches of relevant journals, abstract books and conference proceedings.Most recent search of the Group's Trials Register: 12 May 2016. SELECTION CRITERIA All randomised and quasi-randomised trials involving agents that reduce gastric acidity compared to placebo or a comparator treatment. DATA COLLECTION AND ANALYSIS Both authors independently selected trials, assessed trial quality and extracted data. MAIN RESULTS The searches identified 39 trials; 17 of these, with 273 participants, were suitable for inclusion, but the number of trials assessing each of the different agents was small. Seven trials were limited to children and four trials enrolled only adults. Meta-analysis was not performed, 14 trials were of a cross-over design and we did not have the appropriate information to conduct comprehensive meta-analyses. All the trials were run in single centres and duration ranged from five days to six months. The included trials were generally not reported adequately enough to allow judgements on risk of bias.However, one trial found that drug therapies that reduce gastric acidity improved gastro-intestinal symptoms such as abdominal pain; seven trials reported significant improvement in measures of fat malabsorption; and two trials reported no significant improvement in nutritional status. Only one trial reported measures of respiratory function and one trial reported an adverse effect with prostaglandin E2 analogue misoprostol. No trials have been identified assessing the effectiveness of these agents in improving quality of life, the complications of increased gastric acidity, or survival. AUTHORS' CONCLUSIONS Trials have shown limited evidence that agents that reduce gastric acidity are associated with improvement in gastro-intestinal symptoms and fat absorption. Currently, there is insufficient evidence to indicate whether there is an improvement in nutritional status, lung function, quality of life, or survival. Furthermore, due to the unclear risks of bias in the included trials, we are unable to make firm conclusions based on the evidence reported therein. We therefore recommend that large, multicentre, randomised controlled clinical trials are undertaken to evaluate these interventions.
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Affiliation(s)
- Sze May Ng
- Southport & Ormskirk NHS Trust, Ormskirk District General HospitalDepartment of PaediatricsWigan RoadOrmskirkLancashireUKL39 2AZ
| | - Helen S Moore
- Southport & Ormskirk NHS Trust, Ormskirk District General HospitalDepartment of PaediatricsWigan RoadOrmskirkLancashireUKL39 2AZ
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29
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What Is the Role of Nutrition Therapy in the Management of the Adult Cystic Fibrosis Patient? Curr Nutr Rep 2015. [DOI: 10.1007/s13668-015-0136-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Kelly T, Buxbaum J. Gastrointestinal Manifestations of Cystic Fibrosis. Dig Dis Sci 2015; 60:1903-13. [PMID: 25648641 DOI: 10.1007/s10620-015-3546-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 01/19/2015] [Indexed: 12/27/2022]
Abstract
Gastrointestinal symptoms of cystic fibrosis are the most important non-pulmonary manifestations of this genetic illness. Pancreatic manifestations include acute and chronic pancreatitis as well as pancreas insufficiency resulting in malnutrition. Complications in the gastrointestinal lumen are diverse and include distal intestinal obstruction syndrome (DIOS), meconium ileus, intussusception, and constipation; biliary tract complications include focal biliary cirrhosis and cholangiectasis. The common pathophysiology is the inspissation of secretions in the hollow structures of the gastrointestinal tract. Improved survival of CF patients mandates that the adult gastroenterologist be aware of the presentation and treatment of pancreatic, luminal, and hepatobiliary CF complications.
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Affiliation(s)
- Thomas Kelly
- Division of Gastroenterology and Liver Diseases, Los Angeles County Hospital, Keck School of Medicine, The University of Southern California, D & T Building Room B4H100, 1983 Marengo St, Los Angeles, CA, 90033-1370, USA
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31
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Phillips ME. Pancreatic exocrine insufficiency following pancreatic resection. Pancreatology 2015; 15:449-455. [PMID: 26145836 DOI: 10.1016/j.pan.2015.06.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 05/06/2015] [Accepted: 06/10/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Untreated pancreatic exocrine dysfunction is associated with poor quality of life and reduced survival, but is difficult to diagnose following pancreatic resection. Many factors including the extent of the surgery, the health of the residual pancreas and the type of reconstruction must be considered. Patients remain undertreated, and consequently there is much debate to whether or not pancreatic enzyme replacement therapy should be routinely prescribed following pancreatic resection. METHODS A review of the literature was undertaken to establish the incidence of PEI and factors identifying treatment. RESULTS Forty two to forty five percent of patients undergoing pancreatico-duodenectomy (PD) experience pancreatic exocrine insufficiency pre-operatively, whilst the post-operative incidence is 56-98% in PD, and 12-80% following distal and central pancreatectomy. CONCLUSIONS Routine use of pancreatic enzyme replacement should be considered at a starting dose of 50 to 75,000 units lipase with meals and 25,000 to 50,000 units with snacks in this patient group. Patients who have had a central or distal pancreatectomy should be individually assessed for pancreatic exocrine insufficiency in the post operative period, with those undergoing extensive resection most likely to experience insufficiency. Patients who fail to respond to pancreatic enzyme replacement therapy should be referred to a specialist dietitian, be advised on dose adjustment, and undergo investigation to exclude other gastro-intestinal pathology, including small bowel bacterial overgrowth and bile acid malabsorption.
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Affiliation(s)
- Mary E Phillips
- Royal Surrey County Hospital, Regional HPB Unit, Egerton Road, Guildford GU2 7XX, United Kingdom.
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32
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Abstract
BACKGROUND Malabsorption of fat and protein contributes to poor nutritional status in people with cystic fibrosis. Impaired pancreatic function may also result in increased gastric acidity, leading in turn to heartburn, peptic ulcers and the impairment of oral pancreatic enzyme replacement therapy. The administration of gastric acid-reducing agents has been used as an adjunct to pancreatic enzyme therapy to improve absorption of fat and gastro-intestinal symptoms in people with cystic fibrosis. It is important to establish the evidence regarding potential benefits of drugs that reduce gastric acidity in people with cystic fibrosis. OBJECTIVES To assess the effect of drug therapies for reducing gastric acidity for: nutritional status; symptoms associated with increased gastric acidity; fat absorption; lung function; quality of life and survival; and to determine if any adverse effects are associated with their use. SEARCH METHODS We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group Trials Register which comprises references identified from comprehensive electronic database searches, handsearches of relevant journals, abstract books and conference proceedings.Most recent search of the Group's Trials Register: 17 March 2014. SELECTION CRITERIA All randomised and quasi-randomised trials involving agents that reduce gastric acidity compared to placebo or a comparator treatment. DATA COLLECTION AND ANALYSIS Both authors independently selected trials, assessed trial quality and extracted data. MAIN RESULTS The searches identified 39 trials; 17 of these, with 273 participants, were suitable for inclusion, but the number of trials assessing each of the different agents was small. Seven trials were limited to children and four trials enrolled only adults. Meta-analysis was not performed, 14 trials were of a cross-over design and we did not have the appropriate information to conduct comprehensive meta-analyses. The included trials were generally not reported adequately enough to allow judgements on risk of bias.However, one trial found that drug therapies that reduce gastric acidity improved gastro-intestinal symptoms such as abdominal pain; seven trials reported significant improvement in measures of fat malabsorption; and two trials reported no significant improvement in nutritional status. Only one trial reported measures of respiratory function and one trial reported an adverse effect with prostaglandin E2 analogue misoprostol. No trials have been identified assessing the effectiveness of these agents in improving quality of life, the complications of increased gastric acidity, or survival. AUTHORS' CONCLUSIONS Trials have shown limited evidence that agents that reduce gastric acidity are associated with improvement in gastro-intestinal symptoms and fat absorption. Currently, there is insufficient evidence to indicate whether there is an improvement in nutritional status, lung function, quality of life, or survival. Furthermore, due to the unclear risks of bias in the included trials, we are unable to make firm conclusions based on the evidence reported therein. We therefore recommend that large, multicentre, randomised controlled clinical trials are undertaken to evaluate these interventions.
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Affiliation(s)
- Sze May Ng
- Department of Paediatrics, Southport & Ormskirk NHS Trust, Ormskirk District General Hospital, Wigan Road, Ormskirk, Lancashire, UK, L39 2AZ
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33
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Berry AJ. Pancreatic Enzyme Replacement Therapy During Pancreatic Insufficiency. Nutr Clin Pract 2014; 29:312-21. [DOI: 10.1177/0884533614527773] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Amy J. Berry
- University of Virginia Health System, Charlottesville, Virginia
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34
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Heubi JE. Pancreatic enzyme-replacement therapy in CF: considerations for the USA. Expert Rev Respir Med 2014; 2:589-96. [DOI: 10.1586/17476348.2.5.589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Com G, Cetin N, O'Brien CE. Complicated Clostridium difficile colitis in children with cystic fibrosis: association with gastric acid suppression? J Cyst Fibros 2013; 13:37-42. [PMID: 23993432 DOI: 10.1016/j.jcf.2013.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 08/02/2013] [Accepted: 08/07/2013] [Indexed: 01/06/2023]
Abstract
Patients with cystic fibrosis (CF) have several risk factors for Clostridium difficile colonization such as frequent hospitalization and exposure to a broad array of antibiotics utilized for the control, eradication, and prophylaxis of respiratory pathogens. However, despite this high rate of colonization, the occurrence of C. difficile infection (CDI) in CF is rare. We report three children with CF who presented with severe community-associated CDI. All three children had complicated courses and one died. These children were in good health without significant morbidities, and were not frequently hospitalized nor did they receive frequent antibiotic courses. The occurrence of 3 severe cases within a 15-month period prompted us to report these cases and review the literature in regard to CDI. We reviewed the CF GI tract as possible risk factors for a high rate of C. difficile colonization in individuals with CF. Since a high percentage of individuals with CF are on gastric acid blocking agents, we also focused on gastric acid suppression as a potential risk factor for CDI.
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Affiliation(s)
- G Com
- University of Arkansas Medical Sciences, Department of Pediatrics, Pediatric Pulmonology, Arkansas Children's Hospital, United States.
| | - N Cetin
- University of Arkansas Medical Sciences, Department of Pathology, United States
| | - C E O'Brien
- University of Arkansas Medical Sciences, College of Pharmacy, Department of Pharmacy Practice, United States; College of Medicine, Department of Pediatrics, Division of Pharmacology/Toxicology, United States
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36
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Retrospective analysis to investigate the effect of concomitant use of gastric acid-suppressing drugs on the efficacy and safety of pancrelipase/pancreatin (CREON®) in patients with pancreatic exocrine insufficiency. Pancreas 2013; 42:983-9. [PMID: 23587850 DOI: 10.1097/mpa.0b013e31828784ef] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES This study aimed to determine whether the efficacy of pancrelipase/pancreatin (CREON®) may be affected by the concomitant use of proton pump inhibitors (PPIs)/histamine-2 receptor antagonists (H2RAs). METHODS An analysis of integrated data from all clinical trials of pancrelipase/pancreatin supported by Abbott (34 trials, 1142 unique subjects) was conducted. All trials included patients with pancreatic exocrine insufficiency, and most cases were associated with cystic fibrosis, chronic pancreatitis, or pancreatic surgery. Study designs included single and double blind, open label, parallel group, and crossover, and most were randomized. The primary end point for this analysis was on-treatment coefficient of fat absorption (CFA) according to concomitant PPI/H2RA use (yes/no). RESULTS There were no meaningful differences in mean CFA values at the end of pancrelipase/pancreatin treatment by concomitant PPI/H2RA use: yes (n = 254), 82.7% versus no (n = 449), 84.2%. No meaningful differences were observed when the same analysis was carried out by disease type (cystic fibrosis, chronic pancreatitis, and pancreatic surgery). CONCLUSIONS This analysis of data from clinical trials enrolling patients with pancreatic exocrine insufficiency suggests that the efficacy of pancrelipase/pancreatin is not affected by concomitant PPI/H2RA use, as determined by end-of-treatment CFA values, and supports the treatment guidelines' recommendation that acid suppression is not routinely required with pancreatic enzyme replacement therapy.
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37
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Intestinal pH and gastrointestinal transit profiles in cystic fibrosis patients measured by wireless motility capsule. Dig Dis Sci 2013; 58:2275-81. [PMID: 22592630 DOI: 10.1007/s10620-012-2209-1] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Accepted: 04/25/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS The effect of the cystic fibrosis transmembrane conductance regulator protein (CFTR) defect in pancreatic insufficient (PI) patients with cystic fibrosis (CF) on the gastrointestinal pH profile is poorly defined. Adequate and efficient neutralization of the gastric acidity in the duodenum is important for nutrient absorption and timely release of pancreatic enzyme replacement therapy (PERT). We utilized a wireless motility capsule (WMC) to study intestinal pH profile and gastrointestinal transit profile in CF subjects. METHODS WMC studies were done on ten adult CF patients with PI while off acid suppression medication and ten age, gender and BMI matched healthy controls. Mean pH over 1 min increments and area under the pH curve over 5 min increments was calculated for the first hour post gastric emptying. Paired t-test was used to compare means of the pH recordings, transit profiles and analysis of time interval required to reach and maintain pH >5.5 and 6.0. RESULTS A statistically significant difference was observed between mean pH values during the first 23 min of small bowel transit (p < 0.05). In CF subjects, there was a significant delay in time interval required to reach and sustain pH 5.5 and pH 6.0 (p < 0.001), which is required for PERT dissolution. Only small bowel transit in CF subjects was noted to be significantly delayed (p = 0.004) without a compensatory increase in whole gut transit time. CONCLUSIONS We have demonstrated a significant delay in the small intestinal transit and a deficient buffering capacity required to neutralize gastric acid in the proximal small bowel of patients with CF.
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Abstract
The cystic fibrosis transmembrane conductance regulator (CFTR) protein is highly expressed in the pancreatic duct epithelia and permits anions and water to enter the ductal lumen. This results in an increased volume of alkaline fluid allowing the highly concentrated proteins secreted by the acinar cells to remain in a soluble state. This work will expound on the pathophysiology and pathology caused by the malfunctioning CFTR protein with special reference to ion transport and acid-base abnormalities both in humans and animal models. We will also discuss the relationship between cystic fibrosis (CF) and pancreatitis, and outline present and potential therapeutic approaches in CF treatment relevant to the pancreas.
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Affiliation(s)
- Michael Wilschanski
- Pediatric Gastroenterology, Hadassah University Hospital, Jerusalem 91240, Israel
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39
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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.
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Affiliation(s)
- Daniel Gelfond
- Department of Pediatrics, State University of New York at Buffalo, Buffalo, New York, USA.
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40
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Abstract
BACKGROUND Malabsorption of fat and protein contributes to poor nutritional status in people with cystic fibrosis. Impaired pancreatic function may also result in increased gastric acidity, leading in turn to heartburn, peptic ulcers and the impairment of oral pancreatic enzyme replacement therapy. The administration of gastric acid-reducing agents has been used as an adjunct to pancreatic enzyme therapy to improve absorption of fat and gastro-intestinal symptoms in people with cystic fibrosis. It is important to establish the evidence regarding potential benefits of drugs that reduce gastric acidity in people with cystic fibrosis. OBJECTIVES To assess the effect of drug therapies for reducing gastric acidity for: nutritional status; symptoms associated with increased gastric acidity; fat absorption; lung function; quality of life and survival; and to determine if any adverse effects are associated with their use. SEARCH METHODS We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group Trials Register which comprises references identified from comprehensive electronic database searches, handsearches of relevant journals, abstract books and conference proceedings.Most recent search of the Group's Trials Register: 15 February 2012. SELECTION CRITERIA All randomised and quasi-randomised trials involving agents that reduce gastric acidity compared to placebo or a comparator treatment. DATA COLLECTION AND ANALYSIS Both authors independently selected trials, assessed trial quality and extracted data. MAIN RESULTS Thirty-eight trials were identified from the searches. Sixteen trials, with 256 participants, were suitable for inclusion. Seven trials were limited to children and three trials enrolled only adults. Meta-analysis was not performed. However, one trial found that drug therapies that reduce gastric acidity improved gastro-intestinal symptoms such as abdominal pain; seven trials reported significant improvement in measures of fat malabsorption; and two trials reported no significant improvement in nutritional status. Only one trial reported measures of respiratory function and one trial reported an adverse effect with prostaglandin E2 analogue misoprostol. No trials have been identified assessing the effectiveness of these agents in improving quality of life, the complications of increased gastric acidity, or survival. AUTHORS' CONCLUSIONS Trials have shown limited evidence that agents that reduce gastric acidity are associated with improvement in gastro-intestinal symptoms and fat absorption. Currently, there is insufficient evidence to indicate whether there is an improvement in nutritional status, lung function, quality of life, or survival. We therefore recommend that large, multicentre, randomised controlled clinical trials are undertaken to evaluate these interventions.
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Affiliation(s)
- Sze May Ng
- Department of Paediatrics, Southport & Ormskirk NHS Trust, Ormskirk District General Hospital, Ormskirk, UK.
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41
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Clostridium difficile Infection and Proton Pump Inhibitor Use in Hospitalized Pediatric Cystic Fibrosis Patients. Gastroenterol Res Pract 2011; 2011:345012. [PMID: 22144994 PMCID: PMC3226314 DOI: 10.1155/2011/345012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 09/19/2011] [Accepted: 09/20/2011] [Indexed: 01/03/2023] Open
Abstract
Children with cystic fibrosis (CF) often take proton pump inhibitors (PPIs), which helps improve efficacy of fat absorption with pancreatic enzyme replacement therapy. However, PPI use is known to be associated with Clostridium difficile-(C. diff-) associated diarrhea (CDAD). We retrospectively evaluated the incidence of C. diff infection from all pediatric hospital admissions over a 5-year period at a single tertiary children's hospital. We found significantly more C. diff-positive stool tests in hospitalized patients with CF compared to patients with no diagnosis of CF. However, use of a PPI was not associated with an increased risk of CDAD in hospitalized CF patients. In summary, C. diff infection is more common in hospitalized pediatric CF patients although PPI use may not be a risk factor for CDAD development in this patient population.
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Pancreatic enzyme replacement therapy for pancreatic exocrine insufficiency: when is it indicated, what is the goal and how to do it? Adv Med Sci 2011; 56:1-5. [PMID: 21450558 DOI: 10.2478/v10039-011-0005-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Pancreatic exocrine insufficiency with steatorrhea is a major consequence of pancreatic diseases (e.g. chronic pancreatitis, cystic fibrosis, severe acute necrotizing pancreatitis, pancreatic cancer), extrapancreatic diseases like celiac disease and Crohn's disease, and gastrointestinal and pancreatic surgical resections. Recognition of this entity is highly relevant to avoid malnutrition-related morbidity and mortality. Therapy of pancreatic exocrine insufficiency is based on the oral administration of pancreatic enzymes aiming at providing the duodenal lumen with sufficient amount of active lipase at the time of gastric emptying of nutrients. Administration of enzymes in form of enteric-coated minimicrospheres avoids acid-mediated lipase inactivation and ensures gastric emptying of enzymes in parallel with nutrients. Despite that, factors like an acidic intestinal pH and bacterial overgrowth may prevent normalization of fat digestion even in compliant patients. The present article critically reviews current therapeutic approaches to pancreatic exocrine insufficiency.
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Abstract
Pancreatic insufficiency is a major consequence of pancreatic diseases leading to a loss of pancreatic parenchyma, obstruction of the main pancreatic duct, decreased pancreatic stimulation, or acid-mediated inactivation of pancreatic enzymes. In addition, gastrointestinal and pancreatic surgical resections are frequent causes. Clinical manifestations include abdominal cramps, steatorrhea and malnutrition. Malnutrition, the main contributing factor of weight loss, has been related to a high morbidity and mortality secondary to an increased risk of malnutrition-related complications and cardiovascular events. Assessments of exocrine pancreatic function, such as fecal fat quantification and (13) C-triglyceride breath test, are the method of choice for diagnosis. In clinical practice, high-risk patient populations include those with severe necrotizing pancreatitis, gastrointestinal and pancreatic surgery, cancer of pancreas head, and those with pancreatic calcifications. Apart from relief of maldigestion-related symptoms, the main goal of pancreatic enzyme substitution therapy is to ensure a normal nutritional status. Therapy of pancreatic insufficiency is based on the oral administration of exogenous pancreatic enzymes. Restriction of fat intake, though traditionally important in conventional treatment, should be reconsidered. Enzyme substitution therapy should ideally mimic the physiological pattern of pancreatic exocrine secretion, and pancreatic enzymes in the form of enteric-coated minimicrospheres are considered as the most elaborated commercially available enzyme preparations. In general, pancreatic exocrine insufficiency in patients after surgery may be managed similarly to patients with chronic pancreatitis. This review focuses on current perspectives in diagnosis and treatment of pancreatic exocrine insufficiency and practical suggestions on its clinical management.
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Affiliation(s)
- J Enrique Domínguez-Muñoz
- Department of Gastroenterology and Hepatology, University Hospital of Santiago de Compostela, Spain.
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44
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CREON (Pancrelipase Delayed-Release Capsules) for the treatment of exocrine pancreatic insufficiency. Adv Ther 2010; 27:895-916. [PMID: 21086085 DOI: 10.1007/s12325-010-0085-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2010] [Indexed: 12/12/2022]
Abstract
Exocrine pancreatic insufficiency (EPI) is associated with conditions including cystic fibrosis (CF), chronic pancreatitis (CP), and pancreatic surgery (PS). The symptoms include maldigestion, malnutrition, weight loss, flatulence, and steatorrhea. Pancreatic enzyme replacement therapy (PERT) is the standard treatment for EPI; it is regulated in many countries and most recently in the USA following a US FDA mandate for all PERT manufacturers to submit new drug applications. Pancrelipase delayed-release capsules (CREON®, Abbott, Marietta, GA, USA) have been available in Europe since 1984 and in the USA since 1987; a new formulation was the first PERT to gain approval in the USA in 2009. The efficacy and safety of CREON have been demonstrated in double-blind, randomized, placebo-controlled trials in patients with CF aged ≥7 years and in patients with CP or post-PS. The data consistently demonstrate significantly better fat and nitrogen absorption with CREON versus placebo, and improvements in clinical symptoms, stool frequency, and body weight. Additionally, efficacy and safety of CREON have been shown in open-label studies in young children with CF (aged 1 month to 6 years), with control of fat malabsorption and control of clinical symptoms. The most commonly reported adverse events (AEs) with PERT are gastrointestinal disorders and allergic skin reactions. In clinical studies, CREON was well tolerated with very few withdrawals due to AEs and a low frequency of AEs judged treatment related, regardless of patient age. To further support the known safety profile of PERT, all manufacturers are required to investigate risk factors for fibrosing colonopathy, a rare gastrointestinal complication of CF, and the theoretical risk of viral transmission from porcine-derived PERT products. Together, the clinical study data and wealth of clinical experience suggest that CREON is effective and safe in patients with EPI regardless of etiology, with a very favorable risk-benefit profile.
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45
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Toouli J, Biankin AV, Oliver MR, Pearce CB, Wilson JS, Wray NH. Management of pancreatic exocrine insufficiency: Australasian Pancreatic Club recommendations. Med J Aust 2010; 193:461-7. [PMID: 20955123 DOI: 10.5694/j.1326-5377.2010.tb04000.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Accepted: 06/20/2010] [Indexed: 02/06/2023]
Abstract
Pancreatic exocrine insufficiency (PEI) occurs when the amounts of enzymes secreted into the duodenum in response to a meal are insufficient to maintain normal digestive processes. The main clinical consequence of PEI is fat maldigestion and malabsorption, resulting in steatorrhoea. Pancreatic exocrine function is commonly assessed by conducting a 3-day faecal fat test and by measuring levels of faecal elastase-1 and serum trypsinogen. Pancreatic enzyme replacement therapy is the mainstay of treatment for PEI. In adults, the initial recommended dose of pancreatic enzymes is 25,000 units of lipase per meal, titrating up to a maximum of 80,000 units of lipase per meal. In infants and children, the initial recommended dose of pancreatic enzymes is 500 units of lipase per gram of dietary fat; the maximum daily dose should not exceed 10,000 units of lipase per kilogram of bodyweight. Oral pancreatic enzymes should be taken with meals to ensure adequate mixing with the chyme. Adjunct therapy with acid-suppressing agents may be useful in patients who continue to experience symptoms of PEI despite high-dose enzyme therapy. A dietitian experienced in treating PEI should be involved in patient management. Dietary fat restriction is not recommended for patients with PEI. Patients with PEI should be encouraged to consume small, frequent meals and to abstain from alcohol. Medium-chain triglycerides do not provide any clear nutritional advantage over long-chain triglycerides, but can be trialled in patients who fail to gain or to maintain adequate bodyweight in order to increase energy intake.
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Affiliation(s)
- James Toouli
- Department of Surgery, Flinders Medical Centre, Adelaide, SA, Australia.
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46
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Sun X, Sui H, Fisher JT, Yan Z, Liu X, Cho HJ, Joo NS, Zhang Y, Zhou W, Yi Y, Kinyon JM, Lei-Butters DC, Griffin MA, Naumann P, Luo M, Ascher J, Wang K, Frana T, Wine JJ, Meyerholz DK, Engelhardt JF. Disease phenotype of a ferret CFTR-knockout model of cystic fibrosis. J Clin Invest 2010; 120:3149-60. [PMID: 20739752 PMCID: PMC2929732 DOI: 10.1172/jci43052] [Citation(s) in RCA: 271] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2010] [Accepted: 06/02/2010] [Indexed: 12/15/2022] Open
Abstract
Cystic fibrosis (CF) is a recessive disease that affects multiple organs. It is caused by mutations in CFTR. Animal modeling of this disease has been challenging, with species- and strain-specific differences in organ biology and CFTR function influencing the emergence of disease pathology. Here, we report the phenotype of a CFTR-knockout ferret model of CF. Neonatal CFTR-knockout ferrets demonstrated many of the characteristics of human CF disease, including defective airway chloride transport and submucosal gland fluid secretion; variably penetrant meconium ileus (MI); pancreatic, liver, and vas deferens disease; and a predisposition to lung infection in the early postnatal period. Severe malabsorption by the gastrointestinal (GI) tract was the primary cause of death in CFTR-knockout kits that escaped MI. Elevated liver function tests in CFTR-knockout kits were corrected by oral administration of ursodeoxycholic acid, and the addition of an oral proton-pump inhibitor improved weight gain and survival. To overcome the limitations imposed by the severe intestinal phenotype, we cloned 4 gut-corrected transgenic CFTR-knockout kits that expressed ferret CFTR specifically in the intestine. One clone passed feces normally and demonstrated no detectable ferret CFTR expression in the lung or liver. The animals described in this study are likely to be useful tools for dissecting CF disease pathogenesis and developing treatments.
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Affiliation(s)
- Xingshen Sun
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Hongshu Sui
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - John T. Fisher
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Ziying Yan
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Xiaoming Liu
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Hyung-Ju Cho
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Nam Soo Joo
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Yulong Zhang
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Weihong Zhou
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Yaling Yi
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Joann M. Kinyon
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Diana C. Lei-Butters
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Michelle A. Griffin
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Paul Naumann
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Meihui Luo
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Jill Ascher
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Kai Wang
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Timothy Frana
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Jeffrey J. Wine
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - David K. Meyerholz
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - John F. Engelhardt
- Department of Anatomy and Cell Biology and
Center for Gene Therapy, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Department of Psychology, Stanford University, Stanford, California, USA.
Department of Veterinary Diagnostic & Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA.
Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.
Marshall Farms Group Ltd., North Rose, New York, USA.
Department of Biostatistics, College of Public Health, and
Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
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47
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Abstract
Nutritional status is strongly associated with pulmonary function and survival in cystic fibrosis patients. Attainment of a normal growth pattern in childhood and maintenance of adequate nutritional status in adulthood represent major goals of multidisciplinary cystic fibrosis centers. International guidelines on energy intake requirements, pancreatic enzyme-replacement therapy and fat-soluble vitamin supplementation are of utmost importance in daily practice. The present review summarizes the most up-to-date information on early nutritional management in newly diagnosed patients and evaluates the benefits of aggressive nutritional support, assessment of nutritional status, recommendations for nutrition-related management in pancreatic-insufficient patients and the possible therapeutic impact of fat intake modulation upon inflammatory status.
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Affiliation(s)
- Anne Munck
- CF Center, University Hospital Robert Debré, AP-HP 48, bd Serurier 75019 Paris, France.
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48
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Mailhot G, Ravid Z, Barchi S, Moreau A, Rabasa-Lhoret R, Levy E. CFTR knockdown stimulates lipid synthesis and transport in intestinal Caco-2/15 cells. Am J Physiol Gastrointest Liver Physiol 2009; 297:G1239-49. [PMID: 19808659 DOI: 10.1152/ajpgi.00206.2009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Cystic fibrosis transmembrane conductance regulator (CFTR) is a chloride channel highly expressed in epithelial cells of the gastrointestinal tract. Mutations in the CFTR gene cause cystic fibrosis (CF), a disease characterized by pancreatic insufficiency, fat malabsorption, and steatorrhea. Despite the administration of pancreatic enzymes to normalize malabsorption, CF patients still experienced lipid fecal loss, nutritional deficiencies, and abnormalities in serum lipid profile, suggesting the presence of intrinsic defects in the intestinal handling of nutrients. The objective of the present study was to assess the impact of CFTR gene knockdown on intracellular lipid metabolism of the intestinal Caco-2/15 cell line. Partial CFTR gene inactivation led to cellular lipid accretion of phospholipids, triglycerides, and cholesteryl esters. Likewise, secretion of these lipid fractions was significantly increased following CFTR gene manipulation. As expected from these findings, the output of triglyceride-rich lipoproteins showed the same increasing pattern. Investigation of the mechanisms underlying these changes revealed that CFTR knockdown resulted in raised levels of apolipoproteins in cells and media and microsomal transfer protein activity, two important factors for the efficient assembly and secretion of lipoproteins. Similarly, scrutiny of the enzymatic monoacylglycerol acyltransferase and diacylglycerol acyltransferase, which exhibit dynamic function in triacylglycerol resynthesis and chylomicron formation in enterocytes, revealed a significant augmentation in their activity. Conversely, cholesterol uptake mediated by Niemann-Pick C1 like 1, Scavenger Receptor Class B Type I, and ATP-binding cassette G8 remains unaffected by genetic modification of CFTR. Collectively, these results highlight the role played by CFTR in intestinal handling of lipids and may suggest that factors other than defective CFTR are responsible for the abnormal intracellular events leading to fat malabsorption in CF patients.
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Affiliation(s)
- Geneviève Mailhot
- Research Centre, CHU Sainte-Justine, Université de Montréal, Québec, Canada
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49
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Abstract
Pancreatic exocrine insufficiency with steatorrhea is a major consequence of pancreatic diseases (eg, chronic pancreatitis, cystic fibrosis, severe acute necrotizing pancreatitis, pancreatic cancer), extrapancreatic diseases such as celiac disease and Crohn's disease, and gastrointestinal and pancreatic surgical resection. Recognition of this entity is highly relevant to avoid malnutrition-related morbidity and mortality. Therapy for pancreatic exocrine insufficiency is based on the oral administration of pancreatic enzymes aiming at providing the duodenal lumen with sufficient active lipase at the time of gastric emptying of nutrients. Administration of enzymes in the form of enteric-coated minimicrospheres avoids acid-mediated lipase inactivation and ensures gastric emptying of enzymes in parallel with nutrients. Nevertheless, such factors as acidic intestinal pH and bacterial overgrowth may prevent normalization of fat digestion even in compliant patients. The present article critically reviews current therapeutic approaches to pancreatic exocrine insufficiency.
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Affiliation(s)
- J Enrique Domínguez-Muñoz
- Department of Gastroenterology, University Hospital of Santiago de Compostela, C/ Choupana, s/n, E-15706-Santiago de Compostela, Spain.
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50
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Innis SM, Davidson AGF, Melynk S, James SJ. Choline-related supplements improve abnormal plasma methionine-homocysteine metabolites and glutathione status in children with cystic fibrosis. Am J Clin Nutr 2007; 85:702-8. [PMID: 17344490 DOI: 10.1093/ajcn/85.3.702] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Liver triacylglycerol accumulation and oxidative stress are common in cystic fibrosis (CF) and also occur in choline deficiency. Previously, we showed an association between elevated plasma homocysteine, reduced ratios of S-adenosylmethionine to S-adenosylhomocysteine (SAM:SAH) and of phosphatidylcholine to phosphatidylethanolamine, and phospholipid malabsorption in children with CF. OBJECTIVE The objective was to address a possible relation between altered methionine-homocysteine metabolism and choline metabolism in children with CF. DESIGN Children with CF were assigned without bias to supplementation with 2 g lecithin/d (n = 13), 2 g choline/d (n = 12), or 3 g betaine/d (n = 10) for 14 d. Plasma concentrations of methionine, adenosine, cysteine, cysteinyl-glycine, glutathione, glutathione disulfide (GSSG), and fatty acids; SAM:SAH; and red blood cell phospholipids were measured within each group of children with CF before and after supplementation. Plasma from healthy children without CF (n = 15) was analyzed to obtain reference data. RESULTS Children with CF had higher plasma homocysteine, SAH, and adenosine and lower methionine, SAM:SAH, and glutathione:GSSG than did children without CF. Supplementation with lecithin, choline, or betaine resulted in a significant increase in plasma methionine, SAM, SAM:SAH, and glutathione:GSSG and a decrease in SAH (n = 35). Supplementation with choline or betaine was associated with a significant decrease in plasma SAH and an increase in SAM:SAH, methionine, and glutathione:GSSG. Supplementation with lecithin or choline also increased plasma methionine and SAM. CONCLUSION We showed that dietary supplementation with choline-related compounds improves the low SAM:SAH and glutathione redox balance in children with CF.
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Affiliation(s)
- Sheila M Innis
- Department of Paediatrics, University of British Columbia, Vancouver, BC, Canada.
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