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Blomster TM, Koivurova OP, Koskela R, Herzig KH, Talley NJ, Ronkainen J. Pregnancy period and early-life risk factors for inflammatory bowel disease: a Northern Finland birth cohort 1966 study. BMC Public Health 2024; 24:1038. [PMID: 38622673 PMCID: PMC11017657 DOI: 10.1186/s12889-024-18549-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/08/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND The pathogenesis of inflammatory bowel disease (IBD) has not been fully elucidated. The aim of this study was to analyze the pregnancy period, perinatal period, and infancy period risk factors for IBD in a well-characterized birth cohort from Northern Finland. METHODS The Northern Finland Birth Cohort 1966 (NFBC1966) population comprises mothers living in the two northernmost provinces of Finland, Oulu, and Lapland, with dates of delivery between Jan 1st and Dec 31st, 1966 (12 055 mothers, 12 058 live-born children, 96.3% of all births during 1966). IBD patients were identified using hospital registries (from 1966 to 2020) and Social Insurance Institution (SII) registry reimbursement data for IBD drugs (from 1978 to 2016). The data were analyzed by Fisher's exact test and logistic regression. RESULTS In total, 6972 individuals provided informed consent for the use of combined SII and hospital registry data. Of those, 154 (2.1%) had IBD (113 [1.6%] had ulcerative colitis (UC), and 41 (0.6%) had Crohn's disease (CD)). According to multivariate analysis, maternal smoking > 10 cigarettes/day during pregnancy was associated with a nearly 6-fold increased risk of CD in the offspring (OR 5.78, 95% CI 1.70-17.3). Breastfeeding (OR = 0.18, 95% CI 0.08-0.44) and iron supplementation during the first year of life (OR = 0.43, 95% CI 0.21-0.89) were negatively associated with CD. CONCLUSIONS Smoking during pregnancy was associated with the risk of CD while Breastfeeding and oral iron supplementation at infancy were negatively associated with the risk of CD later in life.
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Affiliation(s)
- Timo M Blomster
- Department of Internal Medicine, Institute of Clinical Medicine, University of Oulu, Oulu, Finland
| | | | - Ritva Koskela
- Department of Internal Medicine, Institute of Clinical Medicine, University of Oulu, Oulu, Finland
| | - Karl-Heinz Herzig
- Research Unit of Biomedicine and Internal Medicine, Biocenter of Oulu, Medical Research Center, University of Oulu and Oulu University Hospital, Oulu, Finland
- Department of Gastroenterology and Metabolism, Poznan University of Medical Sciences, Poznan, Poland
| | - Nicholas J Talley
- School of Medicine and Public Health, Hunter Medical Research Institute, University of Newcastle, NHMRC Centre of Research Excellence in Digestive Health, Newcastle, Australia
| | - Jukka Ronkainen
- Primary Health Care Center, Lapland Welfare District, Tornio, Finland.
- Research Unit of Population Health, University of Oulu, Faculty of Medicine, FIN-90014, Oulu, P.O. Box 5000, Finland.
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Zamani M, Alizadeh-Tabari S, Murad MH, Ananthakrishnan AN, Malekzadeh R, Talley NJ. Meta-analysis: Risk of pancreatic cancer in patients with inflammatory bowel disease. Aliment Pharmacol Ther 2024; 59:918-927. [PMID: 38372406 DOI: 10.1111/apt.17919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/22/2024] [Accepted: 02/12/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Studies exploring the association between inflammatory bowel disease (IBD) and pancreatic cancer have reported inconsistent results. AIMS To provide a comprehensive overview of the risk of pancreatic cancer development in patients with IBD. METHODS We searched Embase, PubMed, Scopus and ProQuest from inception to 31 October 2023. We included population-based cohort studies examining the risk of incident pancreatic cancer in adult patients with IBD compared to the non-IBD population. We also retrieved Mendelian randomisation (MR) studies investigating the relationship of IBD with pancreatic cancer risk. We conducted random-effects meta-analyses and provided pooled relative risks (RRs) with 95% confidence intervals (CIs). RESULTS We included 13 studies. Among 11 cohort studies, the risk of developing pancreatic cancer increased by 79% in patients with IBD (RR = 1.79 [95% CI: 1.16-2.75]; I2 = 95.7%). Patients either with Crohn's disease (RR = 1.42 [95% CI: 1.24-1.63]) or ulcerative colitis (RR = 1.50 [95% CI: 1.17-1.92]) had increased risk (p for interaction = 0.72). The annual incidence of pancreatic cancer potentially attributable to IBD increased by 55 cases (95% CI: 17-103) per million. Two MR studies demonstrated that genetic liability to IBD was associated with an increased risk of pancreatic cancer. CONCLUSIONS Our results suggest a moderate increase in the risk of pancreatic cancer in patients with IBD, which may be further heightened by genetic predisposition to IBD. The increased risk of pancreatic cancer is probably similar in Crohn's disease and ulcerative colitis.
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Affiliation(s)
- Mohammad Zamani
- Digestive Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Alizadeh-Tabari
- Digestive Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hassan Murad
- Kern Center for the Science of Healthcare Delivery Research, Mayo Clinic, Rochester, Minnesota, USA
| | - Ashwin N Ananthakrishnan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Reza Malekzadeh
- Digestive Oncology Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
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Koloski N, Duncanson K, Ramanathan SA, Rao M, Holtmann G, Talley NJ. What impact has the Centre of Research Excellence in Digestive Health made in the field of gastrointestinal health in Australia and internationally? Study protocol for impact evaluation using the FAIT framework. BMJ Open 2024; 14:e076839. [PMID: 38514142 PMCID: PMC10961498 DOI: 10.1136/bmjopen-2023-076839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 02/20/2024] [Indexed: 03/23/2024] Open
Abstract
INTRODUCTION The need for public research funding to be more accountable and demonstrate impact beyond typical academic outputs is increasing. This is particularly challenging and the science behind this form of research is in its infancy when applied to collaborative research funding such as that provided by the Australian National Health and Medical Research Council to the Centre for Research Excellence in Digestive Health (CRE-DH). METHODS AND ANALYSIS In this paper, we describe the protocol for applying the Framework to Assess the Impact from Translational health research to the CRE-DH. The study design involves a five-stage sequential mixed-method approach. In phase I, we developed an impact programme logic model to map the pathway to impact and establish key domains of benefit such as knowledge advancement, capacity building, clinical implementation, policy and legislation, community and economic impacts. In phase 2, we have identified and selected appropriate, measurable and timely impact indicators for each of these domains and established a data plan to capture the necessary data. Phase 3 will develop a model for cost-consequence analysis and identification of relevant data for microcosting and valuation of consequences. In phase 4, we will determine selected case studies to include in the narrative whereas phase 5 involves collation, data analysis and completion of the reporting of impact.We expect this impact evaluation to comprehensively describe the contribution of the CRE-DH for intentional activity over the CRE-DH lifespan and beyond to improve outcomes for people suffering with chronic and debilitating digestive disorders. ETHICS AND DISSEMINATION This impact evaluation study has been registered with the Hunter New England Human Research Ethics Committee as project 2024/PID00336 and ethics application 2024/ETH00290. Results of this study will be disseminated via medical conferences, peer-reviewed publications, policy submissions, direct communication with relevant stakeholders, media and social media channels such as X (formely Twitter).
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Affiliation(s)
- Natasha Koloski
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- School of Health & Behavioural Sciences, University of Queensland, St Lucia, Queensland, Australia
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Kerith Duncanson
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Shanthi Ann Ramanathan
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Melanie Rao
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Gerald Holtmann
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
- School of Medicine, University of Queensland, St Lucia, Queensland, Australia
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Newcastle, New South Wales, Australia
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Koloski N, Shah A, Kaan I, Ben Jacob R, Talley NJ, Jones MP, Holtmann G. Healthcare Utilization Patterns: Irritable Bowel Syndrome, Inflammatory Bowel Disease, and Gastroesophageal Reflux Disease. Dig Dis Sci 2024:10.1007/s10620-024-08297-w. [PMID: 38400884 DOI: 10.1007/s10620-024-08297-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 09/22/2023] [Indexed: 02/26/2024]
Abstract
BACKGROUND Limited information is available about patterns of healthcare utilization for prevalent gastrointestinal conditions and their link to symptom burden. AIM To identify patterns of healthcare utilization among outpatients with highly prevalent gastrointestinal conditions and define the link between healthcare utilization, symptom burden, and disease group. METHODS We randomly selected patients from the gastroenterology outpatient clinic at Princess Alexandra Hospital who had chronic gastrointestinal conditions such as constipation-predominant irritable bowel syndrome (IBS-C, n = 101), diarrhea-predominant IBS (IBS-D, n = 101), mixed IBS (n = 103), inflammatory bowel disease with acute flare (n = 113), IBD in remission (n = 103), and gastroesophageal reflux disease (n = 102). All had presented at least 12 months before and had a 12-month follow-up after the index consultation. Healthcare utilization data were obtained from state-wide electronic medical records over a 24-month period. Intensity of gastrointestinal symptoms was measured using the validated Structured Assessment of Gastrointestinal Symptoms (SAGIS) Scale. Latent class analyses (LCA) based on healthcare utilization were used to identify distinct patterns of healthcare utilization among these patients. RESULTS LCA revealed four distinct healthcare utilization patterns across all diagnostic groups: Group A: Emergency department utilizers, Group B: Outpatient focused care utilizers, Group C: Inpatient care utilizers and Group D: Inpatient care and emergency department utilizers. LCA groups with high emergency utilization were characterized by high gastrointestinal symptom burden at index consultation regardless of condition (Mean (standard deviation)) SAGIS score Group A: 24.63 (± 14.11), Group B: 19.18 (± 15.77), Group C: 22.48 (± 17.42), and Group D: 17.59 (± 13.74, p < 0.05). CONCLUSION Distinct healthcare utilization patterns across highly prevalent gastrointestinal conditions exist. Symptom severity rather than diagnosis, likely reflecting unmet clinical need, defines healthcare utilization.
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Affiliation(s)
- Natasha Koloski
- Faculty of Medicine and Faculty of Health and Behavioural Sciences, Translational Research Institute, University of Queensland, Ipswich Road, Woolloongabba, Brisbane, QLD, Australia
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Ayesha Shah
- Faculty of Medicine and Faculty of Health and Behavioural Sciences, Translational Research Institute, University of Queensland, Ipswich Road, Woolloongabba, Brisbane, QLD, Australia
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Iain Kaan
- Former Employee of AbbVie Australia, Sydney, NSW, Australia
| | - Ronen Ben Jacob
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - Michael P Jones
- School of Psychological Sciences, Macquarie University, Ryde, NSW, Australia
| | - Gerald Holtmann
- Faculty of Medicine and Faculty of Health and Behavioural Sciences, Translational Research Institute, University of Queensland, Ipswich Road, Woolloongabba, Brisbane, QLD, Australia.
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.
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Zuzek R, Potter M, Talley NJ, Agréus L, Andreasson A, Veits L, Vieth M, Walker MM. Prevalence of Histological Gastritis in a Community Population and Association with Epigastric Pain. Dig Dis Sci 2024; 69:528-537. [PMID: 38091176 PMCID: PMC10861608 DOI: 10.1007/s10620-023-08170-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 10/26/2023] [Indexed: 02/15/2024]
Abstract
BACKGROUND AND AIMS Gastritis is a common histological diagnosis, although the prevalence is decreasing in developed populations, alongside decreasing prevalence of H. pylori infection. We sought to determine the prevalence of the etiology of gastritis in a Swedish population sample and to analyze any associations with symptoms, an area of clinical uncertainty. METHODS Longitudinal population-based study based in Östhammar, Sweden. A randomly sampled adult population completed a validated gastrointestinal symptom questionnaire (Abdominal Symptom Questionnaire, ASQ) in 2011 (N = 1175). Participants < 80 years of age and who were eligible were invited to undergo esophagogastroduodenoscopy (EGD) (N = 947); 402 accepted and 368 underwent EGD with antral and body biopsies (average 54.1 years, range 20-79 years; 47.8% male) with H. pylori serology. RESULTS Gastritis was found in 40.2% (148/368; 95% CI 35.2-45.2%). By rank, the most common histological subtype was reactive (68/148; 45.9%), then H. pylori (44/148; 29.7%), chronic non-H. pylori (29/148; 19.6%), and autoimmune (4/148; 2.7%). Gastritis was significantly associated with older age and H. pylori status (p < 0.01). Gastritis subjects were divided into three histological categories: chronic inactive inflammation, autoimmune gastritis, and active inflammation; there was no difference in the presence of upper gastrointestinal symptoms when categories were compared to cases with no pathological changes. Functional dyspepsia or gastroesophageal reflux were reported in 25.7% (38/148) of those with gastritis (any type or location) versus 34.1% (75/220) with no pathological changes (p = 0.32). Epigastric pain was more common in chronic H. pylori negative gastritis in the gastric body (OR = 3.22, 95% CI 1.08-9.62). CONCLUSION Gastritis is common in the population with a prevalence of 40% and is usually asymptomatic. Chronic body gastritis may be associated with epigastric pain, but independent validation is required to confirm these findings. Clinicians should not generally ascribe symptoms to histological gastritis.
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Affiliation(s)
- Rachael Zuzek
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia
- Department of Medicine, Wollongong Hospital, Wollongong, Australia
| | - Michael Potter
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia
- NHMRC Centre for Research Excellence in Digestive Health, Newcastle, Australia
| | - Nicholas J Talley
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia.
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia.
- NHMRC Centre for Research Excellence in Digestive Health, Newcastle, Australia.
- Hunter Medical Research Institute, Lot 1, Kookaburra Cct, New Lambton Heights, NSW, 2305, Australia.
| | - L Agréus
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
| | - A Andreasson
- Department of Psychology, Macquarie University, North Ryde, Australia
- Department of Medicine Solna, Karolinska Institutet, Solna, Sweden
- Department of Psychology, Stress Research Institute, Stockholm University, Stockholm, Sweden
| | - L Veits
- Klinikum Bayreuth, Institute of Pathology, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - M Vieth
- Klinikum Bayreuth, Institute of Pathology, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - M M Walker
- Faculty of Health and Medicine, University of Newcastle, Newcastle, Australia
- NHMRC Centre for Research Excellence in Digestive Health, Newcastle, Australia
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Nieva C, Pryor J, Williams GM, Hoedt EC, Burns GL, Eslick GD, Talley NJ, Duncanson K, Keely S. The Impact of Dietary Interventions on the Microbiota in Inflammatory Bowel Disease: A Systematic Review. J Crohns Colitis 2023:jjad204. [PMID: 38102104 DOI: 10.1093/ecco-jcc/jjad204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND AND AIMS Diet plays an integral role in the modulation of the intestinal environment, with the potential to be modified for management of individuals with inflammatory bowel disease (IBD). It has been hypothesised that poor "Western-style" dietary patterns select for a microbiota that drives IBD inflammation and that through dietary intervention, a healthy microbiota may be restored. This study aimed to systematically review the literature and assess current available evidence regarding the influence of diet on the intestinal microbiota composition in IBD patients and how this may affect disease activity. METHODS MEDLINE, EMBASE, Scopus, Web of Science and Cochrane Library were searched from January 2013 to June 2023, to identify studies investigating diet and microbiota in IBD. RESULTS Thirteen primary studies met the inclusion criteria and were selected for narrative synthesis. Reported associations between diet and microbiota in IBD were conflicting due to the considerable degree of heterogeneity between studies. Nine intervention studies trialled specific diets and did not demonstrate significant shifts in the diversity and abundance of intestinal microbial communities or improvement in disease outcomes, whilst the remaining four cross-sectional studies did not find a specific microbial signature associated with habitual dietary patterns in IBD patients. CONCLUSIONS Diet modulates the gut microbiota, and this may have implications for IBD; however, the body of evidence does not currently support clear dietary patterns or food constituents that are associated with a specific microbiota profile or disease marker in IBD patients. Further research is required with a focus on robust and consistent methodology to achieve improved identification of associations.
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Affiliation(s)
- Cheenie Nieva
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Jennifer Pryor
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Georgina M Williams
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Emily C Hoedt
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Grace L Burns
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Guy D Eslick
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
| | - Nicholas J Talley
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Kerith Duncanson
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Simon Keely
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia
- National Health and Medical Research Council (NHMRC), Centre of Research Excellence in Digestive Health, The University of Newcastle, Newcastle, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
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Lim AW, Talley NJ, Walker MM, Storm G, Hua S. Current status and advances in esophageal drug delivery technology: influence of physiological, pathophysiological and pharmaceutical factors. Drug Deliv 2023; 30:2219423. [PMID: 37344759 DOI: 10.1080/10717544.2023.2219423] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023] Open
Abstract
Diseases affecting the esophagus are common. However, targeted drug delivery to the esophagus is challenging due to the anatomy and physiology of this organ. Current pharmacological treatment for esophageal diseases predominantly relies on the off-label use of drugs in various dosage forms, including those for systemic drug delivery (e.g. oral tablets, sublingual tablets, and injections) and topical drug delivery (e.g. metered dose inhaler, viscous solution or suspension, and endoscopic injection into the esophagus). In general, systemic therapy has shown the most efficacy but requires the use of high drug doses to achieve effective concentrations in the esophagus, which increases the risk of adverse effects and toxicity. Topical drug delivery has enormous potential in improving the way we treat patients with acute and chronic esophageal diseases, especially those requiring drugs that have low therapeutic index and/or significant adverse effects to non-targeted organs and tissues. This review will address the physiological, pathophysiological, and pharmaceutical considerations influencing topical drug delivery in the esophagus. The main conventional (e.g. liquid formulations, orodispersible tablets, lozenges, pastilles, troches, chewing gum) and innovative (e.g. stent-based, film-based, nanoparticulate-based) drug delivery approaches will be comprehensively discussed, along with the developments to improve their effectiveness for topical esophageal drug delivery. The translational challenges and future clinical advances of this research will also be discussed.
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Affiliation(s)
- Ai Wei Lim
- Therapeutic Targeting Research Group, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
| | - Marjorie M Walker
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
- Department of Biomaterials Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Susan Hua
- Therapeutic Targeting Research Group, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
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Zamani M, Alizadeh-Tabari S, Chan WW, Talley NJ. Association Between Anxiety/Depression and Gastroesophageal Reflux: A Systematic Review and Meta-Analysis. Am J Gastroenterol 2023; 118:2133-2143. [PMID: 37463429 DOI: 10.14309/ajg.0000000000002411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/14/2023] [Indexed: 07/20/2023]
Abstract
INTRODUCTION An association between gastroesophageal reflux disease (GERD) and common psychiatric conditions, most notably anxiety and depression, has been reported. However, the magnitude of this association is poorly understood. Therefore, we aimed to systematically assess this issue. METHODS We comprehensively searched multiple bibliographic databases (Embase, PubMed, Scopus, and Web of Science) from inception to May 15, 2023. We retrieved observational studies that reported the prevalence of anxiety and/or depressive symptoms diagnosed by validated questionnaires in ≥100 adults (aged 18 years or older) with GERD. We also included cohort studies that explored the risk of incident GERD in subjects with anxiety/depression vice versa scenario. Finally, we included Mendelian randomization studies that assessed the cause-and-effect relationship between anxiety/depression and GERD. The extracted data were combined using a random-effects model. RESULTS In total, 36 eligible studies were included. The pooled prevalences of anxiety and depressive symptoms were 34.4% (95% confidence interval [CI] 24.7-44.2; I2 = 99.4%) and 24.2% (95% CI 19.9-28.5; I2 = 98.8%) in subjects with GERD based on 30 studies, respectively. Both anxiety and depressive symptoms were more common in subjects with GERD compared with those in healthy controls (odds ratio = 4.46 [95% CI 1.94-10.25] and odds ratio = 2.56 [95% CI 1.11-5.87], respectively). According to 3 cohort studies, subjects with GERD were at an increased risk of developing anxiety/depression and vice versa. Finally, 3 Mendelian randomization studies showed that genetic liability to these mood disorders is linked to an increased risk of developing GERD and vice versa. DISCUSSION Up to 1 in 3 subjects with GERD experience anxiety and depression. There is likely a bidirectional causal relationship between anxiety/depression and GERD.
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Affiliation(s)
- Mohammad Zamani
- Digestive Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Alizadeh-Tabari
- Digestive Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Walter W Chan
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Newcastle, Australia
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Burns GL, Potter M, Mathe A, Bruce J, Minahan K, Barnes JL, Pryor J, Nieva C, Sherwin S, Cuskelly A, Fairlie T, Cameron R, Bollipo S, Irani MZ, Foster R, Gan LT, Shah A, Koloski N, Foster PS, Horvat JC, Walker MM, Powell N, Veysey M, Duncanson K, Holtmann G, Talley NJ, Keely S. TRAV26-2 T-Cell Receptor Expression Is Associated With Mucosal Lymphocyte Response to Wheat Proteins in Patients With Functional Dyspepsia. Clin Transl Gastroenterol 2023; 14:e00638. [PMID: 37753952 PMCID: PMC10749711 DOI: 10.14309/ctg.0000000000000638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023] Open
Abstract
INTRODUCTION An association between functional dyspepsia (FD) and wheat-containing foods has been reported in observational studies; however, an adaptive response has not been demonstrated. We examined whether antigens present in wheat could provoke a response from FD duodenal lymphocytes. METHODS Lamina propria mononuclear cells (LPMCs) were isolated from duodenal biopsies from 50 patients with FD and 23 controls. LPMCs were exposed to gluten (0.2 mg/mL) or gliadin (0.2 mg/mL) for 24 hours. Flow cytometry was performed to phenotype lymphocytes. Quantitative PCR was used to measure the expression of gliadin-associated T-cell receptor alpha variant ( TRAV ) 26-2. RESULTS In response to gliadin (but not gluten) stimulation, the effector Th2-like population was increased in FD LPMCs compared with that in controls and unstimulated FD LPMCs. Duodenal gene expression of TRAV26- 2 was decreased in patients with FD compared with that in controls. We identified a positive association between gene expression of this T-cell receptor variant and LPMC effector Th17-like cell populations in patients with FD, but not controls after exposure to gluten, but not gliadin. DISCUSSION Our findings suggest that gliadin exposure provokes a duodenal effector Th2-like response in patients with FD, supporting the notion that food antigens drive responses in some patients. Furthermore, these findings suggest that altered lymphocyte responses to wheat proteins play a role in FD pathogenesis.
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Affiliation(s)
- Grace L. Burns
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Michael Potter
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia
| | - Andrea Mathe
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Jessica Bruce
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Kyra Minahan
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Jessica L. Barnes
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Jennifer Pryor
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Cheenie Nieva
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Simonne Sherwin
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Annalisa Cuskelly
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- School of Psychological Sciences, College of Engineering, Science and Environment, University of Newcastle, Newcastle, Australia
| | - Thomas Fairlie
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia
- Translational Research Institute, Brisbane, Australia.
| | - Raquel Cameron
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
| | - Steven Bollipo
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia
| | - Mudar Zand Irani
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia
| | - Robert Foster
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia
| | - Lay T. Gan
- Department of Gastroenterology, John Hunter Hospital, Newcastle, Australia
| | - Ayesha Shah
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia
- Translational Research Institute, Brisbane, Australia.
| | - Natasha Koloski
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia
- Translational Research Institute, Brisbane, Australia.
| | - Paul S. Foster
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Jay C. Horvat
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Marjorie M. Walker
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
| | - Nick Powell
- Division of Digestive Diseases, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Martin Veysey
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- Hull-York Medical School, University of Hull, Hull, United Kingdom
| | - Kerith Duncanson
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
| | - Gerald Holtmann
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia
- Translational Research Institute, Brisbane, Australia.
| | - Nicholas J. Talley
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
- School of Medicine & Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
| | - Simon Keely
- School of Biomedical Sciences & Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, Australia
- NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
- Hunter Medical Research Institute, New Lambton Heights, Australia
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10
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Talley NJ, Burns GL, Hoedt EC, Duncanson K, Keely S. Beyond Eosinophilic Esophagitis: Eosinophils in Gastrointestinal Disease-New Insights, "New" Diseases. J Can Assoc Gastroenterol 2023; 6:199-211. [PMID: 38106480 PMCID: PMC10723938 DOI: 10.1093/jcag/gwad046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2023] Open
Abstract
Functional dyspepsia (FD) is a highly prevalent disorder. Upper endoscopy is normal, and according to the Rome IV criteria, there is no established pathology. Data accumulated over the last 15 years has challenged the notion FD is free of relevant pathology, and in particular, increased duodenal eosinophils have been observed. Intestinal eosinophils play important roles in microbial defence, immune regulation, tissue regeneration and remodelling, and maintaining tissue homeostasis and metabolism; degranulation of eosinophils releases toxic granule products (e.g., major basic protein, eosinophil-derived neurotoxin) which can damage nerves. Normal cut-offs for eosinophil infiltration into the duodenum histologically are less than five eosinophils per high power field (<25 per five high power fields). In clinical practice there is evidence that pathologically increased intestinal eosinophils may often be overlooked. In a meta-analysis duodenal eosinophils were significantly increased in FD although there was substantial heterogeneity; degranulation of duodenal eosinophils was also significantly higher in FD without significant heterogeneity. In addition, increased duodenal permeability, systemic immune activation, and an altered mucosa-associated duodenal microbiome have been identified that may help explain why symptoms arise, often occur after food with exposure to food antigens, and typically fluctuate. Several potentially reversible risk factors for FD have now been identified. We evaluate the current evidence linking duodenal microinflammation and immune activation with FD and disorders of gut-brain interactions that overlap with FD. We propose a two-hit disease model for eosinophilic functional dyspepsia (EoFD) with management implications.
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Affiliation(s)
- Nicholas J Talley
- University of Newcastle, University Drive, Callaghan NSW, Australia
- NHMRC Centre of Research Excellence in Digestive Health, Locked Bag 1000, New Lambton NSW 2305, Australia
| | - Grace L Burns
- University of Newcastle, University Drive, Callaghan NSW, Australia
- NHMRC Centre of Research Excellence in Digestive Health, Locked Bag 1000, New Lambton NSW 2305, Australia
| | - Emily C Hoedt
- University of Newcastle, University Drive, Callaghan NSW, Australia
- NHMRC Centre of Research Excellence in Digestive Health, Locked Bag 1000, New Lambton NSW 2305, Australia
| | - Kerith Duncanson
- University of Newcastle, University Drive, Callaghan NSW, Australia
- NHMRC Centre of Research Excellence in Digestive Health, Locked Bag 1000, New Lambton NSW 2305, Australia
| | - Simon Keely
- University of Newcastle, University Drive, Callaghan NSW, Australia
- NHMRC Centre of Research Excellence in Digestive Health, Locked Bag 1000, New Lambton NSW 2305, Australia
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11
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Donnelly MC, Talley NJ. Effects of climate change on digestive health and preventative measures. Gut 2023; 72:2199-2201. [PMID: 37977585 DOI: 10.1136/gutjnl-2023-331187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 11/19/2023]
Affiliation(s)
| | - Nicholas J Talley
- HMRI Building, University of Newcastle, Newcastle, New South Wales, Australia
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12
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Eslick GD, Fan K, Nair PM, Burns GL, Hoedt EC, Keely S, Talley NJ. Clinical and Pathologic Factors Associated With Colonic Spirochete (Brachyspira pilosicoli and Brachyspira aalborgi) Infection: A Comprehensive Systematic Review and Pooled Analysis. Am J Clin Pathol 2023; 160:335-340. [PMID: 37289435 PMCID: PMC10682506 DOI: 10.1093/ajcp/aqad063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/04/2023] [Indexed: 06/09/2023] Open
Abstract
OBJECTIVES This study aims to determine what pathologic and clinical factors differentiate Brachyspira species that may be useful to clinicians and pathologists. METHODS We identified 21 studies of Brachyspira infection with individual patient information (n = 113) and conducted a pooled analysis comparing each species. RESULTS There were differences in the pathologic and clinical profiles of each Brachyspira species. Patients infected with Brachyspira pilosicoli infection were more likely to have diarrhea, fever, HIV, and immunocompromised conditions. Those patients infected with Brachyspira aalborgi were more likely to have lamina propria inflammation. CONCLUSIONS Our novel data provide potential insights into the pathogenic mechanism(s) and the specific risk factor profile of Brachyspira species. This may be clinically useful when assessing and managing patients.
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Affiliation(s)
- Guy D Eslick
- NHMRC Centre for Research Excellence in Digestive Health, The University of Newcastle, Hunter Medical Research Institute (HMRI), Callaghan, Australia
| | - Kening Fan
- NHMRC Centre for Research Excellence in Digestive Health, The University of Newcastle, Hunter Medical Research Institute (HMRI), Callaghan, Australia
| | - Prema M Nair
- NHMRC Centre for Research Excellence in Digestive Health, The University of Newcastle, Hunter Medical Research Institute (HMRI), Callaghan, Australia
| | - Grace L Burns
- NHMRC Centre for Research Excellence in Digestive Health, The University of Newcastle, Hunter Medical Research Institute (HMRI), Callaghan, Australia
| | - Emily C Hoedt
- NHMRC Centre for Research Excellence in Digestive Health, The University of Newcastle, Hunter Medical Research Institute (HMRI), Callaghan, Australia
| | - Simon Keely
- NHMRC Centre for Research Excellence in Digestive Health, The University of Newcastle, Hunter Medical Research Institute (HMRI), Callaghan, Australia
| | - Nicholas J Talley
- NHMRC Centre for Research Excellence in Digestive Health, The University of Newcastle, Hunter Medical Research Institute (HMRI), Callaghan, Australia
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13
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Nguyen PV, Quach DT, Bui MH, Dang TP, Talley NJ. A Clinicopathologic Continuum of Eosinophilic Gastrointestinal Diseases in an Adult With Tuberculosis and Latent Hepatitis B Virus Infection. ACG Case Rep J 2023; 10:e01176. [PMID: 37829167 PMCID: PMC10567028 DOI: 10.14309/crj.0000000000001176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/13/2023] [Indexed: 10/14/2023] Open
Abstract
Eosinophilic gastroenteritis (EGE) is considered distinct from eosinophilic colitis (EC). A 59-year-old man presented with a colonic tumor, who had resolution of pain and diarrhea after surgery, then 7 months later developed proton-pump inhibitor-responsive dysphagia with esophagitis, and 9 months later presented again with pain and diarrhea where EGE with concurrent eosinophilic esophagitis was diagnosed. Review of the resected tumor specimen identified EC with an adenoma. Workup revealed tuberculosis and latent hepatitis B virus requiring treatment before commencing immunosuppressive therapy plus a 6-food elimination diet that led to complete resolution within 3 weeks. EC may precede EGE and eosinophilic esophagitis.
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Affiliation(s)
- Phong V. Nguyen
- Department of Gastroenterology, Nhan Dan Gia Dinh Hospital, Ho Chi Minh, Vietnam
| | - Duc T. Quach
- Department of Gastroenterology, Nhan Dan Gia Dinh Hospital, Ho Chi Minh, Vietnam
- Department of Internal Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Minh H.Q. Bui
- Laboratory Department, Vinmec Central Park International Hospital, Ho Chi Minh, Vietnam
- Department of Pathology, Nhan Dan Gia Dinh Hospital, Ho Chi Minh, Vietnam
| | - Thinh P. Dang
- Department of Endoscopy, Nhan Dan Gia Dinh Hospital, Ho Chi Minh, Vietnam
| | - Nicholas J. Talley
- Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
- School of Medicine and Public Health and NHMRC Centre of Research Excellence Digestive Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia
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14
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Stretton B, Kovoor J, Bacchi S, Gupta A, Hugh T, Dobbins C, Trochsler M, Hewett P, Chan WO, Barreto SG, Rayner C, Bruening M, Padbury R, Talley NJ, Anthony A, Horowitz M, Maddern G, Boyd M. Like a Surgeon? A letter commenting on Grosse and Thomas's 'Selection into training will always be an inexact process: a survey of Directors of Physician Education on selection into Basic Physician Training in Australia and New Zealand'. Intern Med J 2023; 53:1724-1725. [PMID: 37743243 DOI: 10.1111/imj.16214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 07/30/2023] [Indexed: 09/26/2023]
Affiliation(s)
- Brandon Stretton
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Joshua Kovoor
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Stephen Bacchi
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Aashray Gupta
- Department of Cardiothoracic Surgery, Gold Coast University Hospital, Gold Coast, Queensland, Australia
| | - Thomas Hugh
- Surgical Education Research and Training, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Christopher Dobbins
- Department of Surgery, Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Markus Trochsler
- Department of Surgery, Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Peter Hewett
- Department of Surgery, Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Weng O Chan
- Department of Ophthalmology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Savio G Barreto
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
- Hepatobiliary and Liver Transplant Unit, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Christopher Rayner
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Martin Bruening
- Department of Cardiothoracic Surgery, Gold Coast University Hospital, Gold Coast, Queensland, Australia
| | - Robert Padbury
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
| | - Adrian Anthony
- Royal Australasian College of Surgeons, Melbourne, Victoria, Australia
| | - Michael Horowitz
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Guy Maddern
- Department of Cardiothoracic Surgery, Gold Coast University Hospital, Gold Coast, Queensland, Australia
| | - Mark Boyd
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
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15
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Stretton B, Kovoor J, Bacchi S, Chang S, Ngoi B, Murray T, Bristow TC, Heng J, Gupta A, Ovenden C, Maddern G, Thompson CH, Heilbronn L, Boyd M, Rayner C, Talley NJ, Horowtiz M. Weight loss with subcutaneous semaglutide versus other glucagon-like peptide 1 receptor agonists in type 2 diabetes: a systematic review. Intern Med J 2023; 53:1311-1320. [PMID: 37189293 DOI: 10.1111/imj.16126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/11/2023] [Indexed: 05/17/2023]
Abstract
Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) reduce elevated blood glucose levels and induce weight loss. Multiple GLP-1 RAs and one combined GLP-1/glucose-dependent insulinotropic polypeptide agonist are currently available. This review was conducted with the aim of summarising direct comparisons between subcutaneous semaglutide and other GLP-1 RAs in individuals with type 2 diabetes (T2D), particularly with respect to efficacy for inducing weight loss and improving other markers of metabolic health. This systematic review of PubMed and Embase from inception to early 2022 was registered on PROSPERO and was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Meta-Analysis of Observational Studies in Epidemiology guidelines. Of the 740 records identified in the search, five studies fulfilled the inclusion criteria. Comparators included liraglutide, exenatide, dulaglutide and tirzepatide. In the identified studies, multiple dosing regimens were utilised for semaglutide. Randomised trials support the superior efficacy of semaglutide over other GLP-1 RAs with respect to weight loss in T2D, but tirzepatide is more effective than semaglutide.
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Affiliation(s)
- Brandon Stretton
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Joshua Kovoor
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Stephen Bacchi
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Shantel Chang
- School of Medicine, Griffith University, Brisbane, Queensland, Australia
| | - Benjamin Ngoi
- Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Tess Murray
- Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Thomas C Bristow
- Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Jonathan Heng
- Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Aashray Gupta
- Gold Coast University Hospital, Brisbane, Queensland, Australia
| | - Christopher Ovenden
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Guy Maddern
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Campbell H Thompson
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Leonie Heilbronn
- Metabolic Health Unit, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Mark Boyd
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
- Northern Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Christopher Rayner
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Nicholas J Talley
- Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Michael Horowtiz
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- National Health and Medical Research Council, Centre of Research Excellence in Translating Nutritional Science to Good Health, The University. of Adelaide, Adelaide, South Australia, Australia
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16
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Cameron R, Walker MM, Jones M, Eslick GD, Keely S, Pockney P, Cosentino CC, Talley NJ. Increased mucosal eosinophils in colonic diverticulosis and diverticular disease. J Gastroenterol Hepatol 2023; 38:1355-1364. [PMID: 37415341 PMCID: PMC10946982 DOI: 10.1111/jgh.16278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 06/06/2023] [Accepted: 06/20/2023] [Indexed: 07/08/2023]
Abstract
AIMS Eosinophils contribute to tissue homeostasis, damage, and repair. The mucosa of colonic diverticula has not been evaluated for eosinophils by quantitative histology. We aimed to investigate whether mucosal eosinophils and other immune cells are increased in colonic diverticula. METHODS Hematoxylin and eosin stained sections from colonic surgical resections (n = 82) containing diverticula were examined. Eosinophils, neutrophils, and lymphocytes, in five high power fields in the lamina propria were counted at the base, neck, and ostia of the diverticulum and counts compared to non-diverticula mucosa. The cohort was further subgrouped by elective and emergency surgical indications. RESULTS Following an initial review of 10 surgical resections from patients with diverticulosis, a total of 82 patients with colonic resections containing diverticula from the descending colon were evaluated (median age 71.5, 42 M/40F). Eosinophil counts for the entire cohort were increased in the base and neck (median 99 and 42, both P = <0.001) compared with the control location (median 16). Eosinophil counts remained significantly increased in the diverticula base (both P = <0.001) and neck (P = 0.01 and <0.001, respectively) in both elective and emergency cases. Lymphocytes were also significantly increased at the diverticula base compared to controls in both elective and emergency subgroups. CONCLUSION Eosinophils are significantly and most strikingly increased within the diverticulum in resected colonic diverticula. While these observations are novel, the role of eosinophil and chronic inflammation is as yet unclear in the pathophysiology of colonic diverticulosis and diverticular disease.
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Affiliation(s)
- Raquel Cameron
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleAustralia
- NHMRC Centre for Research Excellence in Digestive HealthNew Lambton HeightsAustralia
- Hunter Medical Research InstituteNewcastleAustralia
| | - Marjorie M. Walker
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleAustralia
- NHMRC Centre for Research Excellence in Digestive HealthNew Lambton HeightsAustralia
| | - Michael Jones
- NHMRC Centre for Research Excellence in Digestive HealthNew Lambton HeightsAustralia
- Department of PsychologyMacquarie UniversityNorth RydeAustralia
| | - Guy D. Eslick
- NHMRC Centre for Research Excellence in Digestive HealthNew Lambton HeightsAustralia
- Hunter Medical Research InstituteNewcastleAustralia
| | - Simon Keely
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleAustralia
- NHMRC Centre for Research Excellence in Digestive HealthNew Lambton HeightsAustralia
- Hunter Medical Research InstituteNewcastleAustralia
| | - Peter Pockney
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleAustralia
- NHMRC Centre for Research Excellence in Digestive HealthNew Lambton HeightsAustralia
- Hunter Medical Research InstituteNewcastleAustralia
| | | | - Nicholas J. Talley
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleAustralia
- NHMRC Centre for Research Excellence in Digestive HealthNew Lambton HeightsAustralia
- Hunter Medical Research InstituteNewcastleAustralia
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17
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Alexandersson BT, Hugerth LW, Hedin C, Forsberg A, Talley NJ, Agreus L, Järbrink-Sehgal E, Engstrand L, Andreasson A, Schmidt PT. Diverticulosis is not associated with altered gut microbiota nor is it predictive of future diverticulitis: a population-based colonoscopy study. Scand J Gastroenterol 2023; 58:1131-1138. [PMID: 36987880 DOI: 10.1080/00365521.2023.2194010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/13/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND The etiopathogenesis of diverticular disease is unknown. OBJECTIVE To compare the fecal and mucosa-associated microbiota between participants with and without diverticulosis and participants who later developed diverticulitis versus those that did not from a population-based study. METHODS The PopCol study, conducted in Stockholm, Sweden, invited a random sample of 3556 adults to participate, of which 745 underwent colonoscopy. Overall, 130 participants (17.5%) had diverticulosis. 16S rRNA gene sequencing was conducted on available sigmoid biopsy samples from 529 and fecal samples from 251 individuals. We identified individuals who subsequently developed acute diverticulitis up to 13 years after sample collection. In a case-control design matching for gender, age (+/-5 years), smoking and antibiotic exposure, we compared taxonomic composition, richness and diversity of the microbiota between participants with or without diverticulosis, and between participants who later developed acute diverticulitis versus those who did not. RESULTS No differences in microbiota richness or diversity were observed between participants with or without diverticulosis, nor for those who developed diverticulitis compared with those who did not. No bacterial taxa were significantly different between participants with diverticulosis compared with those without diverticulosis. Individuals who later developed acute diverticulitis (2.8%) had a higher abundance of genus Comamonas than those who did not (p = .027). CONCLUSIONS In a population-based cohort study the only significant difference was that those who later develop diverticulitis had more abundance of genus Comamonas. The significance of Comamonas is unclear, suggesting a limited role for the gut microbiota in the etiopathogenesis of diverticular disease.
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Affiliation(s)
| | - Luisa W Hugerth
- Department of Microbiology, Center for Translational Microbiome Research, CTMR, Tumour and Cell Biology (MTC), Karolinska Institutet, Science for Life Laboratory, Solna, Sweden
| | - Charlotte Hedin
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Gastroenterology, Dermatovenereology and Rheumatology, Karolinska University Hospital, Gastroenterology unit, Stockholm, Sweden
| | - Anna Forsberg
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, New South Wales, Australia
| | - Lars Agreus
- Division of Family Medicine, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Ellionore Järbrink-Sehgal
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Michael E.DeBakey Veterans Affairs Medical Center, Houston, TX, USA
| | - Lars Engstrand
- Department of Microbiology, Center for Translational Microbiome Research, CTMR, Tumour and Cell Biology (MTC), Karolinska Institutet, Science for Life Laboratory, Solna, Sweden
| | - Anna Andreasson
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Stress Research Institute, Stockholm University, Stockholm, Sweden
- Department of Psychology, Macquarie University, New South Wales, Australia
| | - Peter T Schmidt
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
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18
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Cameron R, Duncanson K, Hoedt EC, Eslick GD, Burns GL, Nieva C, Keely S, Walker MM, Talley NJ. Does the microbiome play a role in the pathogenesis of colonic diverticular disease? A systematic review. J Gastroenterol Hepatol 2023; 38:1028-1039. [PMID: 36775316 PMCID: PMC10946483 DOI: 10.1111/jgh.16142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/10/2023] [Accepted: 02/03/2023] [Indexed: 02/14/2023]
Abstract
BACKGROUND AND AIMS The role of the microbiota in diverticulosis and diverticular disease is underexplored. This systematic review aimed to assess all literature pertaining to the microbiota and metabolome associations in asymptomatic diverticulosis, symptomatic uncomplicated diverticular disease (SUDD), and diverticulitis pathophysiology. METHODS Seven databases were searched for relevant studies published up to September 28, 2022. Data were screened in Covidence and extracted to Excel. Critical appraisal was undertaken using the Newcastle Ottawa Scale for case/control studies. RESULTS Of the 413 papers screened by title and abstract, 48 full-text papers were reviewed in detail with 12 studies meeting the inclusion criteria. Overall, alpha and beta diversity were unchanged in diverticulosis; however, significant changes in alpha diversity were evident in diverticulitis. A similar Bacteroidetes to Firmicutes ratio compared with controls was reported across studies. The genus-level comparisons showed no relationship with diverticular disease. Butyrate-producing microbial species were decreased in abundance, suggesting a possible contribution to the pathogenesis of diverticular disease. Comamonas species was significantly increased in asymptomatic diverticulosis patients who later developed diverticulitis. Metabolome analysis reported significant differences in diverticulosis and SUDD, with upregulated uracil being the most consistent outcome in both. No significant differences were reported in the mycobiome. CONCLUSION Overall, there is no convincing evidence of microbial dysbiosis in colonic diverticula to suggest that the microbiota contributes to the pathogenesis of asymptomatic diverticulosis, SUDD, or diverticular disease. Future research investigating microbiota involvement in colonic diverticula should consider an investigation of mucosa-associated microbial changes within the colonic diverticulum itself.
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Affiliation(s)
- Raquel Cameron
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Kerith Duncanson
- School of Medicine and Public Health, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Emily C Hoedt
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Guy D Eslick
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Grace L Burns
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Cheenie Nieva
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Simon Keely
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Marjorie M Walker
- School of Medicine and Public Health, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
| | - Nicholas J Talley
- School of Medicine and Public Health, College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNSWAustralia
- NHMRC Centre for Research Excellence in Digestive HealthUniversity of NewcastleNewcastleNSWAustralia
- Australian Gastrointestinal Research Alliance (AGIRA)NewcastleAustralia
- Immune Health Research ProgramHunter Medical Research InstituteNewcastleAustralia
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Wauters L, Harris PR, Walker MM, Serrano CA, Villagrán A, Rakhra GS, Crabtree JE, Talley NJ. Letter: childhood recurrent abdominal pain is associated with increased duodenal eosinophilia independent of Helicobacter pylori infection. Aliment Pharmacol Ther 2023; 58:134-136. [PMID: 37307550 DOI: 10.1111/apt.17556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 06/14/2023]
Affiliation(s)
- Lucas Wauters
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Paul R Harris
- Department of Paediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marjorie M Walker
- School of Medicine and Public Health, and NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
| | - Carolina A Serrano
- Department of Paediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Andrea Villagrán
- Department of Paediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Jean E Crabtree
- Leeds Institute for Medical Research, Wellcome Trust Brenner Building, St. James's University Hospital, Leeds, UK
| | - Nicholas J Talley
- School of Medicine and Public Health, and NHMRC Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, Australia
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20
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Duncanson K, Tikhe D, Williams GM, Talley NJ. Irritable bowel syndrome - controversies in diagnosis and management. Expert Rev Gastroenterol Hepatol 2023; 17:649-663. [PMID: 37317843 DOI: 10.1080/17474124.2023.2223975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
INTRODUCTION The irritable bowel syndrome (IBS) is the best-recognized disorder of gut brain interactions (DGBI). However, it is controversial if the Rome IV criteria iteration for IBS diagnosis is fit for purpose. AREAS COVERED This review critically evaluates Rome IV criteria for diagnosis of IBS and addresses clinical considerations in IBS treatment and management, including dietary factors, biomarkers, disease mimics, symptom severity, and subtypes. The role of diet in IBS is critically reviewed along with the influence of the microbiota, including small intestinal bacterial overgrowth. EXPERT OPINION Emerging data suggest the Rome IV criteria are more suitable for identifying severe IBS and least useful for sub-diagnostic patients who are still likely to benefit from IBS treatment. Despite convincing evidence that IBS symptoms are diet-driven and often postprandial, a relationship to eating is not a Rome IV diagnostic criterion. Few IBS biomarkers have been identified, suggesting the syndrome is too heterogeneous to be measured by a single marker, and combined biomarker, clinical, dietary, and microbial profiling may be needed for objective characterization. With many organic diseases mimicking and overlapping with IBS, it's important clinicians are knowledgable about this to mitigate the risk of missing comorbid organic intestinal disease and to optimally treat IBS symptoms.
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Affiliation(s)
- Kerith Duncanson
- School of Medicine and Public Health, The University of Newcastle, Callaghan, NSW, Australia
- Centre of Research Excellence in Digestive Health, The University of Newcastle, New Lambton Heights, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Dhanashree Tikhe
- Centre of Research Excellence in Digestive Health, The University of Newcastle, New Lambton Heights, NSW, Australia
- Department of Gastroenterology, John Hunter Hospital, Hunter New England Local Health District, New Lambton Heights, NSW, Australia
| | - Georgina M Williams
- School of Medicine and Public Health, The University of Newcastle, Callaghan, NSW, Australia
- Centre of Research Excellence in Digestive Health, The University of Newcastle, New Lambton Heights, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Nicholas J Talley
- School of Medicine and Public Health, The University of Newcastle, Callaghan, NSW, Australia
- Centre of Research Excellence in Digestive Health, The University of Newcastle, New Lambton Heights, NSW, Australia
- Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Department of Gastroenterology, John Hunter Hospital, Hunter New England Local Health District, New Lambton Heights, NSW, Australia
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21
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Zand Irani M, Eslick GD, Brown G, Talley NJ. Letter: eosinophilic duodenitis and increased intraepithelial lymphocytes in rumination syndrome - more evidence. Aliment Pharmacol Ther 2023; 57:1353-1354. [PMID: 37161636 DOI: 10.1111/apt.17481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 05/11/2023]
Affiliation(s)
- Mudar Zand Irani
- NHMRC Centre for Research Excellence in Digestive Health, Hunter Medical Research Institute (HMRI), The University of Newcastle, Callaghan, New South Wales, Australia
| | - Guy D Eslick
- NHMRC Centre for Research Excellence in Digestive Health, Hunter Medical Research Institute (HMRI), The University of Newcastle, Callaghan, New South Wales, Australia
| | - Georgia Brown
- NHMRC Centre for Research Excellence in Digestive Health, Hunter Medical Research Institute (HMRI), The University of Newcastle, Callaghan, New South Wales, Australia
| | - Nicholas J Talley
- NHMRC Centre for Research Excellence in Digestive Health, Hunter Medical Research Institute (HMRI), The University of Newcastle, Callaghan, New South Wales, Australia
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22
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Fairlie T, Shah A, Talley NJ, Chey WD, Koloski N, Yeh Lee Y, Gwee KA, Jones MP, Holtmann G. Overlap of disorders of gut-brain interaction: a systematic review and meta-analysis. Lancet Gastroenterol Hepatol 2023:S2468-1253(23)00102-4. [PMID: 37211024 DOI: 10.1016/s2468-1253(23)00102-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/29/2023] [Accepted: 03/29/2023] [Indexed: 05/23/2023]
Abstract
BACKGROUND Rome criteria differentiate distinct types of disorders of gut-brain interaction (DGBI); also known as functional gastrointestinal disorders. Overlap of symptom categories frequently occurs. This systematic review and meta-analysis aimed to define the prevalence of DGBI overlap and compare overlap in population-based, primary care or tertiary care health settings. Furthermore, we aimed to compare symptom severity of psychological comorbidities in DGBI with and without overlap. METHODS For this systematic review and meta-analysis we searched MEDLINE (PubMed) and Embase electronic databases from inception until March 1, 2022, for original articles and conference abstracts of observational cross-sectional, case-controlled, or cohort design studies that reported the prevalence of DGBI overlap in adult participants (aged ≥18 years). We included only those studies where the diagnosis of DGBI was based on clinical assessment, questionnaire data, or specific symptom-based criteria. Studies were excluded if reporting on mixed populations of DGBI and organic diseases. Aggregate patient data were extracted from eligible published studies. The prevalence of DGBI overlap in all studies was pooled using the DerSimonian and Laird random effects model, and further analysis stratified by subgroups (care setting, diagnostic criteria, geographic region, and gross domestic product per capita). We also assessed the relationship between DGBI overlap with anxiety, depression, and quality of life symptom scores. This study was registered with PROSPERO (CRD42022311101). FINDINGS 46 of 1268 screened studies, reporting on 75 682 adult DGBI participants, were eligible for inclusion in this systematic review and meta-analysis. Overall, 24 424 (pooled prevalence 36·5% [95% CI 30·7 to 42·6]) participants had a DGBI overlap, with considerable between-study heterogeneity (I2=99·51, p=0·0001). In the tertiary health-care setting, overlap among participants with DGBI was more prevalent (8373 of 22 617, pooled prevalence 47·3% [95% CI 33·2 to 61·7]) compared with population-based cohorts (11 332 of 39 749, pooled prevalence 26·5% [95% CI 20·5 to 33·4]; odds ratio 2·50 [95% CI 1·28 to 4·87]; p=0·0084). Quality of life physical component scores were significantly lower in participants with DGBI overlap compared with participants without overlap (standardised mean difference -0·47 [95% CI -0·80 to -0·14]; p=0·025). Participants with DGBI overlap had both increased symptom scores for anxiety (0·39 [95% CI 0·24 to 0·54]; p=0·0001) and depression (0·41 [0·30 to 0·51]; p=0·0001). INTERPRETATION Overlap of DGBI subtypes is frequent, and is more prevalent in tertiary care settings and associated with more severe symptom manifestations or psychological comorbidities. Despite the large sample size, the comparative analyses revealed substantial heterogeneity, and the results should be interpreted with caution. FUNDING National Health and Medical Research Council and Centre for Research Excellence.
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Affiliation(s)
- Thomas Fairlie
- Faculty of Medicine and Faculty of Health and Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia; Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Ayesha Shah
- Faculty of Medicine and Faculty of Health and Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia; Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Nicholas J Talley
- School of Medicine and Public Health, and Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - William D Chey
- Division of Gastroenterology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Natasha Koloski
- Faculty of Medicine and Faculty of Health and Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia; Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia; School of Medicine and Public Health, and Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Yeong Yeh Lee
- School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
| | - Kok-Ann Gwee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Michael P Jones
- School of Psychological Sciences, Macquarie University, Sydney, NSW, Australia
| | - Gerald Holtmann
- Faculty of Medicine and Faculty of Health and Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia; Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.
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23
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Kutyla MJ, McMaster JJ, Haig A, Koloski N, Hourigan L, Meeusen V, Shah A, Talley NJ, Jones MP, Holtmann GJ. Development and Validation of a Patient-Reported Experience Measure for Gastrointestinal Endoscopy: The Comprehensive Endoscopy Satisfaction Tool (CEST). J Clin Gastroenterol 2023; 57:472-478. [PMID: 37022206 DOI: 10.1097/mcg.0000000000001737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/13/2022] [Indexed: 04/07/2023]
Abstract
GOALS We aimed to develop and validate a patient-reported experience measure for gastrointestinal (GI) endoscopy, the Comprehensive Endoscopy Satisfaction Tool that captures relevant domains that influence the patient's experience and identify factors that shape satisfaction. BACKGROUND Patient-reported experience measures are used to capture specific quality aspects of health care services. GI endoscopic services are high-volume services, and there is a lack of specific, validated instruments to capture various domains that shape the patients' experience with routine clinical endoscopic services. STUDY After an environmental scan and structured literature review, focus groups with patients were conducted to identify relevant factors influencing the patient experience with GI endoscopic services. After an initial validation in 101 patients undergoing routine GI endoscopies, the instrument was tested in 7800 patients. In addition, the influence of sociodemographic factors on global satisfaction was explored. RESULTS The final version included 26 specific items plus 4 global ratings for preprocedure, experience on day of procedure, postprocedure care, and infrastructure. In addition, a global rating of the overall experience was included. Patient satisfaction was significantly higher in older patients (P<0.001) but not influenced by gender, nationality, marital status, education, or employment status. Interestingly, during periods of coronavirus disease-19-related service interruptions, the Net Promoter Score was significantly reduced (P<0.0001) providing evidence for the responsiveness of the instrument. CONCLUSIONS The Comprehensive Endoscopy Satisfaction Tool is a valid measure for the patient experience with the various components of endoscopic services, allows for the identification of domains that impact on the patient experience and is a practical tool to compare patient satisfaction over time and across facilities.
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Affiliation(s)
- Marguerite J Kutyla
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Medicine
- Translational Research Institute
| | - Jessica J McMaster
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Medicine
- Translational Research Institute
| | - Adam Haig
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Medicine
| | - Natasha Koloski
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Medicine
- Translational Research Institute
- Australian Gastrointestinal Research Alliance (AGIRA) and the NHMRC Centre for Research Excellence in Digestive Health, Brisbane, QLD
- Faculty of Health & Medicine, University of Newcastle, Newcastle
| | - Luke Hourigan
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Medicine
| | - Vera Meeusen
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Nursing and Midwifery
| | - Ayesha Shah
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Medicine
- Translational Research Institute
- Australian Gastrointestinal Research Alliance (AGIRA) and the NHMRC Centre for Research Excellence in Digestive Health, Brisbane, QLD
| | - Nicholas J Talley
- Australian Gastrointestinal Research Alliance (AGIRA) and the NHMRC Centre for Research Excellence in Digestive Health, Brisbane, QLD
- School of Medicine and Public Health, University of Newcastle, Callaghan
| | - Michael P Jones
- Australian Gastrointestinal Research Alliance (AGIRA) and the NHMRC Centre for Research Excellence in Digestive Health, Brisbane, QLD
- School of Psychological Sciences, Macquarie University, Ryde, NSW, Australia
| | - Gerald J Holtmann
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital
- Faculty of Medicine
- Faculty of Health and Behavioural Sciences, University of Queensland
- Translational Research Institute
- Australian Gastrointestinal Research Alliance (AGIRA) and the NHMRC Centre for Research Excellence in Digestive Health, Brisbane, QLD
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Abell TL, Kuo B, Esfandyari T, Pfeifer ND, Grimaldi M, Renzulli C, Tacchi R, Zhou K, Barnes CN, Nguyen DD, Nguyen L, Talley NJ, McCallum R. A randomized, double-blind, placebo-controlled, phase 2b study of the efficacy and safety of velusetrag in subjects with diabetic or idiopathic gastroparesis. Neurogastroenterol Motil 2023; 35:e14523. [PMID: 36624727 DOI: 10.1111/nmo.14523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/18/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND This study assessed the efficacy and safety of velusetrag-a 5-HT4 agonist with pan-gastrointestinal prokinetic activity-for gastroparesis symptom management and gastric emptying (GE). METHODS In this multicenter, double-blind, randomized, placebo-controlled study, subjects with diabetic or idiopathic gastroparesis received velusetrag 5, 15, or 30 mg or placebo for 12 weeks. The primary efficacy outcome was a 7-day mean Gastroparesis Cardinal Symptom Index 24-h composite score (GCSI-24H) change from baseline at week 4; GE was evaluated using scintigraphy (GES) and breath tests, and safety from adverse events (AEs). KEY RESULTS 232 subjects (183 females; 113 idiopathic gastroparesis) received treatment from February 2015 through June 2017. Least-squares mean improvement from baseline GCSI-24H (primary endpoint) at week 4 was -1.5 following velusetrag 5 mg vs -1.1 following placebo (treatment difference, -0.4; 95% confidence interval, -0.75 to -0.03; nominal p = 0.0327; Hochberg-adjusted p = 0.0980 [not significant]). Symptom improvement from baseline was achieved only with velusetrag 5 mg, which resulted in greater improvement from baseline vs placebo in all gastroparesis core symptoms, especially in subjects with idiopathic gastroparesis. Improvement from baseline GE by GES was greater in subjects receiving velusetrag (all doses) vs placebo; >70% of subjects receiving velusetrag 30 mg had GE normalization at 4 h. Treatment-emergent AEs were generally mild. CONCLUSIONS AND INFERENCES Velusetrag treatment was generally well-tolerated and associated with improved GE vs placebo in subjects with diabetic or idiopathic gastroparesis; however, only the lowest dose, velusetrag 5 mg, was associated with short-term improvement in gastroparesis symptoms. CLINICALTRIALS GOV: NCT02267525.
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Affiliation(s)
| | - Braden Kuo
- Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Tuba Esfandyari
- University of Kansas Medical School, Kansas City, Kansas, USA
| | - Nathan D Pfeifer
- Theravance Biopharma US, Inc., South San Francisco, California, USA
| | | | | | | | - Kefei Zhou
- Theravance Biopharma US, Inc., South San Francisco, California, USA
| | - Chris N Barnes
- Theravance Biopharma US, Inc., South San Francisco, California, USA
| | - Deanna D Nguyen
- Theravance Biopharma US, Inc., South San Francisco, California, USA
| | - Linda Nguyen
- Stanford University School of Medicine, Stanford, California, USA
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25
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Talley NJ, Peterson KA, Genta RM, Chang AT, Dellon ES, Sandborn WJ, Lacy BE, Chehade M, Hirano I, Gonsalves N, Lembo A, Schmitt CM, Rothenberg ME, Jain N, Pletneva MA, Turner KO, Youngblood BA. High Discovery Rate of Duodenal and Gastric Eosinophilia in Patients With Unexplained Moderate-Severe Abdominal Symptoms: A Prospective US Multisite Study. Gastroenterology 2023; 164:680-683.e2. [PMID: 36574864 DOI: 10.1053/j.gastro.2022.12.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/29/2022]
Affiliation(s)
| | | | | | | | - Evan S Dellon
- University of North Carolina, Chapel Hill, North Carolina
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Talley NJ. Welcoming the new MJA Editor-in-Chief, and the top ten original research articles in the MJA in 2022. Med J Aust 2023; 218:22-24. [PMID: 36481979 DOI: 10.5694/mja2.51801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 12/13/2022]
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27
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Affiliation(s)
- Brandon Stretton
- The University of Adelaide, Adelaide, South Australia, Australia
| | - Joshua G Kovoor
- The University of Adelaide, Adelaide, South Australia, Australia
- Centre of Research Excellence in Translating Nutritional Science to Good Health, University of Adelaide, Adelaide SA, Australia
| | - Aashray K Gupta
- The University of Adelaide, Adelaide, South Australia, Australia
| | - Nicholas J Talley
- NHMRC Centre of Research Excellence of Digestive Health, University of Newcastle, Newcastle NSW, Australia
- Mayo Clinic, Rochester MN, USA
| | - Michael Horowitz
- The University of Adelaide, Adelaide, South Australia, Australia
- Centre of Research Excellence in Translating Nutritional Science to Good Health, University of Adelaide, Adelaide SA, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide SA, Australia
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Burns GL, Bruce JK, Minahan K, Mathe A, Fairlie T, Cameron R, Naudin C, Nair PM, Potter MDE, Irani MZ, Bollipo S, Foster R, Gan LT, Shah A, Koloski NA, Foster PS, Horvat JC, Veysey M, Holtmann G, Powell N, Walker MM, Talley NJ, Keely S. Type 2 and type 17 effector cells are increased in the duodenal mucosa but not peripheral blood of patients with functional dyspepsia. Front Immunol 2023; 13:1051632. [PMID: 36685573 PMCID: PMC9852875 DOI: 10.3389/fimmu.2022.1051632] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/15/2022] [Indexed: 01/07/2023] Open
Abstract
Background Functional dyspepsia is characterised by chronic symptoms of post-prandial distress or epigastric pain not associated with defined structural pathology. Increased peripheral gut-homing T cells have been previously identified in patients. To date, it is unknown if these T cells were antigen-experienced, or if a specific phenotype was associated with FD. Objective This study aimed to characterise T cell populations in the blood and duodenal mucosa of FD patients that may be implicated in disease pathophysiology. Methods We identified duodenal T cell populations from 23 controls and 49 Rome III FD patients by flow cytometry using a surface marker antibody panel. We also analysed T cell populations in peripheral blood from 37 controls and 61 patients. Where available, we examined the number of duodenal eosinophils in patients and controls. Results There was a shift in the duodenal T helper cell balance in FD patients compared to controls. For example, patients had increased duodenal mucosal Th2 populations in the effector (13.03 ± 16.11, 19.84 ± 15.51, p=0.038), central memory (23.75 ± 18.97, 37.52 ± 17.51, p=0.007) and effector memory (9.80±10.50 vs 20.53±14.15, p=0.001) populations. Th17 populations were also increased in the effector (31.74±24.73 vs 45.57±23.75, p=0.03) and effector memory (11.95±8.42 vs 18.44±15.63, p=0.027) subsets. Peripheral T cell populations were unchanged between FD and control. Conclusion Our findings identify an association between lymphocyte populations and FD, specifically a Th2 and Th17 signature in the duodenal mucosa. The presence of effector and memory cells suggest that the microinflammation in FD is antigen driven.
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Affiliation(s)
- Grace L. Burns
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Jessica K. Bruce
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Kyra Minahan
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Andrea Mathe
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Thomas Fairlie
- National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia,Translational Research Institute, Brisbane, QLD, Australia,Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Raquel Cameron
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Crystal Naudin
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Prema M. Nair
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Michael D. E. Potter
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Mudar Zand Irani
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Steven Bollipo
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Department of Gastroenterology, John Hunter Hospital, Newcastle, NSW, Australia
| | - Robert Foster
- Department of Gastroenterology, John Hunter Hospital, Newcastle, NSW, Australia
| | - Lay T. Gan
- Department of Gastroenterology, John Hunter Hospital, Newcastle, NSW, Australia
| | - Ayesha Shah
- National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia,Translational Research Institute, Brisbane, QLD, Australia,Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Natasha A. Koloski
- National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia,Translational Research Institute, Brisbane, QLD, Australia,Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Paul S. Foster
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Jay C. Horvat
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Martin Veysey
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Hull-York Medical School, University of Hull, Hull, United Kingdom
| | - Gerald Holtmann
- National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia,Translational Research Institute, Brisbane, QLD, Australia,Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Nick Powell
- Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Marjorie M. Walker
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Nicholas J. Talley
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
| | - Simon Keely
- College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia,Immune Health Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia,National Health & Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia,*Correspondence: Simon Keely,
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Koloski NA, Jones M, Walker MM, Horowitz M, Holtmann G, Talley NJ. Diabetes mellitus is an independent risk factor for a greater frequency of early satiation and diarrhea at one and three years: Two prospective longitudinal population-based studies. Neurogastroenterol Motil 2023; 35:e14471. [PMID: 36210758 PMCID: PMC10078260 DOI: 10.1111/nmo.14471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/07/2022] [Accepted: 08/23/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Psychological and lifestyle factors have been associated with gastrointestinal (GI) symptoms in individuals with diabetes mellitus, but it remains unclear whether they explain the relationship over time. We aimed to determine in two independent population-based studies whether diabetes is an independent risk factor for GI symptoms at a 1- and 3-year follow-up, adjusting for these factors. METHODS In study 1, 1900 individuals completed a baseline and 1-year follow-up survey, while in study 2, 1322 individuals completed a baseline and 3-year follow-up survey. Both studies asked about self-reported diagnoses of diabetes and GI symptoms over the previous 3 months. Psychological, lifestyle factors (body mass index [BMI], smoking) and age and sex were assessed. KEY RESULTS The baseline prevalence of diabetes was 7.8% in Survey 1 and 8.9% in Survey 2. In a multivariate model that included age, sex, BMI, anxiety, depression and smoking status at follow-up, reporting diabetes at baseline was an independent predictor of at least weekly early satiation (OR 1.58, 95% CI 1.05, 2.39, p = 0.03; OR = 1.67, 95% CI 1.14, 2.45, p = 0.009), fecal urgency (OR 1.44,95% CI 1.06, 1.95, p = 0.02; OR = 2.17, 95% CI 1.47, 3.22, p = 0.0001), > 3 bowel motions a day (OR 1.50, 95% CI 1.08, 2.07, p = 0.02; OR = 1.67, 95% CI 1.11, 2.51, p = 0.01), and loose stools (OR 1.40, 95% CI 1.04, 1.90, p = 0.03; OR = 1.68, 95% CI 1.13, 2.51, p = 0.01) at the 1- and 3-year follow-ups, respectively. CONCLUSIONS & INFERENCES Diabetes is an independent risk factor for a greater frequency of early satiation and diarrhea, adjusting for lifestyle and psychological factors.
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Affiliation(s)
- Natasha A Koloski
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia.,Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Michael Jones
- School of Psychological Sciences, Macquarie University, Ryde, New South Wales, Australia
| | - Marjorie M Walker
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
| | - Michael Horowitz
- Endocrine and Metabolic Unit, University of Adelaide, Adelaide, South Australia, Australia
| | - Gerald Holtmann
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
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30
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Talley NJ. From meals, movies and microbes to a new chocolate yuk scale, mortality among wizards, and medical career staging: season's greetings! Med J Aust 2022; 217:555-558. [PMID: 36478579 DOI: 10.5694/mja2.51783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 12/12/2022]
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31
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Cameron R, Walker MM, Thuresson M, Roelstraete B, Sköldberg F, Olén O, Talley NJ, Ludvigsson JF. Mortality risk increased in colonic diverticular disease: a nationwide cohort study. Ann Epidemiol 2022; 76:39-49. [DOI: 10.1016/j.annepidem.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 10/04/2022] [Accepted: 10/11/2022] [Indexed: 11/01/2022]
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32
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Dellon ES, Gonsalves N, Abonia JP, Alexander JA, Arva NC, Atkins D, Attwood SE, Auth MKH, Bailey DD, Biederman L, Blanchard C, Bonis PA, Bose P, Bredenoord AJ, Chang JW, Chehade M, Collins MH, Di Lorenzo C, Dias JA, Dohil R, Dupont C, Falk GW, Ferreira CT, Fox AT, Genta RM, Greuter T, Gupta SK, Hirano I, Hiremath GS, Horsley-Silva JL, Ishihara S, Ishimura N, Jensen ET, Gutiérrez-Junquera C, Katzka DA, Khoury P, Kinoshita Y, Kliewer KL, Koletzko S, Leung J, Liacouras CA, Lucendo AJ, Martin LJ, McGowan EC, Menard-Katcher C, Metz DC, Miller TL, Moawad FJ, Muir AB, Mukkada VA, Murch S, Nhu QM, Nomura I, Nurko S, Ohtsuka Y, Oliva S, Orel R, Papadopoulou A, Patel DA, Pesek RD, Peterson KA, Philpott H, Putnam PE, Richter JE, Rosen R, Ruffner MA, Safroneeva E, Schreiner P, Schoepfer A, Schroeder SR, Shah N, Souza RF, Spechler SJ, Spergel JM, Straumann A, Talley NJ, Thapar N, Vandenplas Y, Venkatesh RD, Vieira MC, von Arnim U, Walker MM, Wechsler JB, Wershil BK, Wright BL, Yamada Y, Yang GY, Zevit N, Rothenberg ME, Furuta GT, Aceves SS. International Consensus Recommendations for Eosinophilic Gastrointestinal Disease Nomenclature. Clin Gastroenterol Hepatol 2022; 20:2474-2484.e3. [PMID: 35181570 PMCID: PMC9378753 DOI: 10.1016/j.cgh.2022.02.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Substantial heterogeneity in terminology used for eosinophilic gastrointestinal diseases (EGIDs), particularly the catchall term "eosinophilic gastroenteritis," limits clinical and research advances. We aimed to achieve an international consensus for standardized EGID nomenclature. METHODS This consensus process utilized Delphi methodology. An initial naming framework was proposed and refined in iterative fashion, then assessed in a first round of Delphi voting. Results were discussed in 2 consensus meetings, and the framework was updated and reassessed in a second Delphi vote, with a 70% threshold set for agreement. RESULTS Of 91 experts participating, 85 (93%) completed the first and 82 (90%) completed the second Delphi surveys. Consensus was reached on all but 2 statements. "EGID" was the preferred umbrella term for disorders of gastrointestinal (GI) tract eosinophilic inflammation in the absence of secondary causes (100% agreement). Involved GI tract segments will be named specifically and use an "Eo" abbreviation convention: eosinophilic gastritis (now abbreviated EoG), eosinophilic enteritis (EoN), and eosinophilic colitis (EoC). The term "eosinophilic gastroenteritis" is no longer preferred as the overall name (96% agreement). When >2 GI tract areas are involved, the name should reflect all of the involved areas. CONCLUSIONS This international process resulted in consensus for updated EGID nomenclature for both clinical and research use. EGID will be the umbrella term, rather than "eosinophilic gastroenteritis," and specific naming conventions by location of GI tract involvement are recommended. As more data are developed, this framework can be updated to reflect best practices and the underlying science.
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Affiliation(s)
- Evan S Dellon
- Center for Esophageal Diseases and Swallowing and Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
| | - Nirmala Gonsalves
- Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - J Pablo Abonia
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Nicoleta C Arva
- Department of Pathology, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Dan Atkins
- Section of Pediatric Allergy and Immunology, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado
| | - Stephen E Attwood
- Department of Health Services Research, Durham University, Durham, United Kingdom
| | - Marcus K H Auth
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Alder Hey Children's NHS Foundation Trust and University of Liverpool, Liverpool, United Kingdom
| | - Dominique D Bailey
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Columbia University Irving Medical Center, New York, New York; Division of Digestive and Liver Disease, Department of Medicine, Columbia University Irving Medical Center, New York, New York; Columbia Center for Human Development, Columbia University Irving Medical Center, New York, New York
| | - Luc Biederman
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Carine Blanchard
- Department of Gastro-Intestinal Health, Immunology group, Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Peter A Bonis
- Division of Gastroenterology, Tufts University School of Medicine, Boston, Massachusetts
| | - Paroma Bose
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Riley Hospital for Children and Community Health Network, Indiana University School of Medicine, Indianapolis, Indianapolis
| | - Albert J Bredenoord
- Department of Gastroenterology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Joy W Chang
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, MichiganI
| | - Mirna Chehade
- Mount Sinai Center for Eosinophilic Disorders, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Margaret H Collins
- Division of Pathology and Laboratory Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Carlo Di Lorenzo
- Division of Gastroenterology, Hepatology and Nutrition, Nationwide Children's Hospital, Columbus, Ohio
| | | | - Ranjan Dohil
- Division on Pediatric Gastroenterology, Rady's Children's Hospital, University of California, San Diego, San Diego, California
| | - Christophe Dupont
- Ramsay Group, Marcel Sembat Clinic, Paris Descartes University, Paris, France
| | - Gary W Falk
- Division of Gastroenterology, Perelman School of Medicine, University of Pennsylvania Philadelphia, Pennsylvania
| | - Cristina T Ferreira
- Hospital Santo Antônio, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
| | - Adam T Fox
- Paediatric Allergy, Guy's & St. Thomas' Hospitals NHS Foundation Trust, London, United Kingdom
| | - Robert M Genta
- Division of Gastroenterology, Department of Pathology and Medicine, Baylor College of Medicine, Houston, Texas; Inform Diagnostics, Irving, Texas
| | - Thomas Greuter
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland; Division of Gastroenterology and Hepatology, University Hospital Lausanne, Lausanne, Switzerland
| | - Sandeep K Gupta
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Riley Hospital for Children and Community Health Network, Indiana University School of Medicine, Indianapolis, Indianapolis
| | - Ikuo Hirano
- Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Girish S Hiremath
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Monroe Carell Jr. Children's Hospital at Vanderbilt, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Shunji Ishihara
- Department of Internal Medicine II, Shimane University Faculty of Medicine, Shimane, Japan
| | - Norihisa Ishimura
- Department of Internal Medicine II, Shimane University Faculty of Medicine, Shimane, Japan
| | - Elizabeth T Jensen
- Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Carolina Gutiérrez-Junquera
- Pediatric Gastroenterology Unit, University Hospital Puerta de Hierro Majadahonda, Autonomous University of Madrid, Majadahonda, Spain
| | - David A Katzka
- Division of Gastroenterology, Mayo Clinic Rochester, Minnesota
| | - Paneez Khoury
- Human Eosinophil Section, National Institute of Allergy and Infectious Diseases/National Institutes of Health, Bethesda, Maryland
| | | | - Kara L Kliewer
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Sibylle Koletzko
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany; Department of Pediatrics, Gastroenterology and Nutrition, School of Medicine Collegium Medicum University of Warmia and Mazury, Olsztyn, Poland
| | - John Leung
- Division of Gastroenterology, Tufts University School of Medicine, Boston, Massachusetts
| | - Chris A Liacouras
- Center for Pediatric Eosinophilic Disorders, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alfredo J Lucendo
- Department of Gastroenterology, Hospital General de Tomelloso, Instituto de Investigación Sanitaria Princesa, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Tomelloso, Spain
| | - Lisa J Martin
- Department of Pediatrics, Cincinnati Children's Hospital, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Emily C McGowan
- Division of Allergy and Immunology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Calies Menard-Katcher
- Digestive Health Institute, Children's Hospital Colorado, Aurora, Colorado; Gastrointestinal Eosinophilic Diseases Program, University of Colorado School of Medicine, Aurora, Colorado
| | - David C Metz
- Division of Gastroenterology, Perelman School of Medicine, University of Pennsylvania Philadelphia, Pennsylvania
| | | | - Fouad J Moawad
- Division of Gastroenterology and Hepatology, Scripps Clinic, La Jolla, California
| | - Amanda B Muir
- Center for Pediatric Eosinophilic Disorders, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Vincent A Mukkada
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Simon Murch
- Warwick University Medical School, Coventry, United Kingdom
| | - Quan M Nhu
- Division of Gastroenterology and Hepatology, Scripps Clinic, La Jolla, California; Department of Molecular Medicine, Scripps Research Institute, San Diego, California; Division of Allergy and Immunology, University of California, San Diego, La Jolla, California
| | - Ichiro Nomura
- Division of Eosinophilic Gastrointestinal Disorders, Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - Samuel Nurko
- Center for Motility and Functional Gastrointestinal Disorders, Boston Children's Hospital, Boston, Massachusetts
| | - Yoshikazu Ohtsuka
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Salvatore Oliva
- Pediatric Digestive Endoscopy, Pediatric Gastroenterology and Liver Unit, Maternal and Child Health Department, University Hospital, University of Rome, Rome, Italy
| | - Rok Orel
- University Children's Hospital Ljubljana, Faculty of Medicine, University of Ljubljana, Slovenia
| | - Alexandra Papadopoulou
- Division of Gastroenterology and Hepatology, Children's Hospital Agia Sofia, First Department of Pediatrics, University of Athens, Athens, Greece
| | - Dhyanesh A Patel
- Center for Esophageal Disorders, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Robert D Pesek
- Division of Allergy and Immunology, Department of Pediatrics, Arkansas Children's Hospital, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | | | - Hamish Philpott
- Department of Gastroenterology, Lyell McEwin Hospital, University of Adelaide, Adelaide, Australia
| | - Philip E Putnam
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Joel E Richter
- Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Rachel Rosen
- Aerodigestive Center, Boston Children's Hospital, Boston, Massachusetts
| | - Melanie A Ruffner
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Ekaterina Safroneeva
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Philipp Schreiner
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Alain Schoepfer
- Division of Gastroenterology and Hepatology, University Hospital Lausanne, Lausanne, Switzerland
| | - Shauna R Schroeder
- Division of Gastroenterology, Hepatology, and Nutrition, Phoenix Children's Hospital, Phoenix, Arizona
| | - Neil Shah
- Portland Hospital, London, United Kingdom; Reckitt Healthcare, Slough, United Kingdom
| | - Rhonda F Souza
- Division of Gastroenterology and Center for Esophageal Diseases, Baylor Scott & White Center for Esophageal Research, Baylor University Medical Center, Baylor Scott & White Research Institute, Dallas, Texas
| | - Stuart J Spechler
- Division of Gastroenterology and Center for Esophageal Diseases, Baylor Scott & White Center for Esophageal Research, Baylor University Medical Center, Baylor Scott & White Research Institute, Dallas, Texas
| | - Jonathan M Spergel
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alex Straumann
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Nicholas J Talley
- School of Medicine and Public Health, University of Newcastle, Newcastle, Australia; National Health and Medical Research Council Centre of Research Excellence on Digestive Health, Newcastle, Australia; Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Nikhil Thapar
- Department of Gastroenterology, Hepatology and Liver Transplant, Queensland Children's Hospital, School of Medicine, University of Queensland, Brisbane, Australia; Woolworths Centre for Child Nutrition Research, Queensland University of Technology, Brisbane, Australia
| | - Yvan Vandenplas
- KidZ Health Castle, Vrije Universiteit Brussel, Brussels, Belgium
| | - Rajitha D Venkatesh
- Division of Gastroenterology, Hepatology and Nutrition, Nationwide Children's Hospital, Columbus, Ohio
| | - Mario C Vieira
- Center for Pediatric Gastroenterology, Hospital Pequeno Príncipe, Curitiba, Brazil
| | - Ulrike von Arnim
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Magdeburg, Magdeburg, Germany
| | - Marjorie M Walker
- Department of Pathology, College of Health, Medicine and Wellbeing, Faculty of Health and Medicine, University of Newcastle Callaghan, Australia
| | - Joshua B Wechsler
- Division of Gastroenterology, Hepatology, and Nutrition, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Barry K Wershil
- Division of Gastroenterology, Hepatology, and Nutrition, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Benjamin L Wright
- Division of Allergy, Asthma, and Clinical Immunology, Department of Medicine, Mayo Clinic Arizona, Scottsdale, Arizona; Section of Allergy and Immunology, Division of Pulmonology, Phoenix Children's Hospital, Phoenix, Arizona
| | - Yoshiyuki Yamada
- Department of Pediatrics, Tokai University School of Medicine, Kanagawa, Japan
| | - Guang-Yu Yang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Noam Zevit
- Institute of Gastroenterology, Hepatology, and Nutrition, Schneider Children's Medical Center of Israel, Sackler Faculty of Medicine, Tel-Aviv University, Petah-Tikva, Israel
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Glenn T Furuta
- Digestive Health Institute, Children's Hospital Colorado, Aurora, Colorado; Gastrointestinal Eosinophilic Diseases Program, University of Colorado School of Medicine, Aurora, Colorado
| | - Seema S Aceves
- Division of Allergy, Immunology, and Rheumatology, Departments of Pediatrics and Medicine, Rady Children's Hospital, University of California San Diego, San Diego, California
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Moy N, Dulleck U, Shah A, Messmann H, Thrift AP, Talley NJ, Holtmann GJ. Risk-based decision-making related to preprocedural coronavirus disease 2019 testing in the setting of GI endoscopy: management of risks, evidence, and behavioral health economics. Gastrointest Endosc 2022; 96:735-742.e3. [PMID: 35690149 PMCID: PMC9174097 DOI: 10.1016/j.gie.2022.05.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/06/2022] [Accepted: 05/28/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Controversies exist regarding the benefits and most appropriate approach for preprocedural coronavirus disease 2019 (COVID-19) testing (eg, rapid antigen test, polymerase chain reaction, or real-time polymerase chain reaction) for outpatients undergoing diagnostic and therapeutic procedures, such as GI endoscopy, to prevent COVID-19 infections among staff. Guidelines for protecting healthcare workers (HCWs) from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection from outpatient procedures varies across medical professional organizations. This study provides an evidence-based decision support tool for key decision-makers (eg, clinicians) to respond to COVID-19 transmission risks and reduce the effect of personal biases. METHODS A scoping review was used to identify relevant factors influencing COVID-19 transmission risk relevant for GI endoscopy. From 12 relevant publications, 8 factors were applicable: test sensitivity, prevalence of SARS-CoV-2 in the population, age-adjusted SARS-CoV-2 prevalence in the patient cohort, proportion of asymptomatic patients, risk of transmission from asymptomatic carriers, risk reduction by personal protective equipment (PPE), vaccination rates of HCWs, and risk reduction of SAE by vaccination. The probability of a serious adverse event (SAE), such as workplace-acquired infection resulting in HCW death, under various scenarios with preprocedural testing was determined to inform decision-makers of expected costs of reductions in SAEs. RESULTS In a setting of high community transmission, without testing and PPE, 117.5 SAEs per million procedures were estimated to occur, and this was reduced to between .079 and 2.35 SAEs per million procedures with the use of PPE and preprocedural testing. When these variables are used and a range of scenarios are tested, the probability of an SAE was low even without testing but was reduced by preprocedural testing. CONCLUSIONS Under all scenarios tested, preprocedural testing reduced the SAE risk for HCWs regardless of the SARS-CoV-2 variant. Benefits of preprocedural testing are marginal when community transmission is low (eg, below 10 infections a day per 100,000 population). The proposed decision support tool can assist in developing rational preprocedural testing policies.
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Affiliation(s)
- Naomi Moy
- School of Economics and Finance, Faculty of Business and Law, Queensland University of Technology, Brisbane, Queensland, Australia; Centre for Behavioural Economics, Society and Technology, Queensland University Australia; Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Uwe Dulleck
- School of Economics and Finance, Faculty of Business and Law, Queensland University of Technology, Brisbane, Queensland, Australia; Centre for Behavioural Economics, Society and Technology, Queensland University Australia; Crawford School of Public Policy, Australian National University, Canberra, Australian Capital Territory, Australia; CESifo, LMU Munich, Munich, Germany
| | - Ayesha Shah
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Helmut Messmann
- Department of Gastroenterology, University Hospital Augsburg, Augsburg, Germany
| | - Aaron P Thrift
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Nicholas J Talley
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia
| | - Gerald J Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Queensland, Australia; Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia; University of Queensland Diamantina Institute, University of Queensland, Woolloongabba, Queensland, Australia; Australian Gastrointestinal Rearch Alliance, Newcastle, New South Wales, Australia; NHMRC Centre for Research Excellence in Digestive Health, Brisbane, Queensland, Australia
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Shah A, Kang S, Talley NJ, Do A, Walker MM, Shanahan ER, Koloski NA, Jones MP, Keely S, Morrison M, Holtmann GJ. The duodenal mucosa associated microbiome, visceral sensory function, immune activation and psychological comorbidities in functional gastrointestinal disorders with and without self-reported non-celiac wheat sensitivity. Gut Microbes 2022; 14:2132078. [PMID: 36303431 PMCID: PMC9621048 DOI: 10.1080/19490976.2022.2132078] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Frequently, patients with functional gastrointestinal disorders (FGIDs) report intolerance of wheat products. We compared gastrointestinal symptoms, sensory function, psychiatric comorbidities, gut-homing immune cells, and duodenal mucosa-associated microbiome (d-MAM) in FGID patients and controls with and without self-reported wheat sensitivity (SR-NCWS). We recruited 40 FGID patients and 20 controls referred by GPs for treatment. Gastrointestinal/extraintestinal symptoms, visceral sensory function, psychological comorbidities, and SR-NCWS were assessed in a standardized approach. Peripheral gut homing T-cells (CD4+α4+β7+CCR9+/CD8+α4+β7+CCR9+) were quantified, and the d-MAM was assessed by DNA sequencing for 46 subjects. Factors of bacterial genera were extracted utilizing factor analysis with varimax rotation and factors univariately associated with FGID or SR-NCWS included in a subsequent multivariate analysis of variance to identify statistically independent discriminators. Anxiety scores (p < .05) and increased symptom responses to a nutrient challenge (p < .05) were univariately associated with FGID. Gut homing T-cells were increased in FGID patients with SR-NCWS compared to other groups (p all <0.05). MANOVA revealed that anxiety (p = .03), visceral sensory function (p = 0.007), and a d-MAM factor comprise members of the Alloprevotella, Prevotella, Peptostreptococcus, Leptotrichia, and Veillonella lineages were significantly (p = .001) associated with FGID, while gut homing CD4+α4+ β7+CCR9+ T-cells were associated (p = .002) with SR-NCWS. Compared to controls, patients with and without SR-NCWS show that there are shifts in the amplicon sequence variants within specific bacterial genera between the FGID subgroups (particularly Prevotella and Streptococcus) as well as distinct bacterial taxa discriminatory for the two different FGID subtypes. Compared to controls, both FGID patients with and without SR-NCWS have an increased symptom response to a standardized nutrient challenge and increased anxiety scores. The FGID patients with SR-NCWS - as compared to FGID without SR-NCWS (and controls without SR-NCWS) - have increased gut homing T-cells. The d-MAM profiles suggest species and strain-based variations between the two FGID subtypes and in comparison to controls.
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Affiliation(s)
- Ayesha Shah
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia,Translational Research Institute Queensland, Australia,Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Seungha Kang
- Faculty of Medicine, University of Queensland, Brisbane, Australia,University of Queensland Diamantina Institute, Woolloongabba, Australia
| | - Nicholas J Talley
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Anh Do
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia,Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Marjorie M Walker
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Erin R Shanahan
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia,Translational Research Institute Queensland, Australia
| | - Natasha A Koloski
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia,Translational Research Institute Queensland, Australia,Faculty of Medicine, University of Queensland, Brisbane, Australia,College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Michael P Jones
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Simon Keely
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Mark Morrison
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia,Faculty of Medicine, University of Queensland, Brisbane, Australia,University of Queensland Diamantina Institute, Woolloongabba, Australia,CONTACT Mark Morrison
| | - Gerald J Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, Australia,Translational Research Institute Queensland, Australia,Faculty of Medicine, University of Queensland, Brisbane, Australia,Gerald J Holtmann Princess Alexandra Hospital, Brisbane Department of Gastroenterology and Hepatology & University of Queensland 199 Ipswich Road, Woolloongabba, Queensland, Australia
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Brown G, Hoedt EC, Keely S, Shah A, Walker MM, Holtmann G, Talley NJ. Role of the duodenal microbiota in functional dyspepsia. Neurogastroenterol Motil 2022; 34:e14372. [PMID: 35403776 PMCID: PMC9786680 DOI: 10.1111/nmo.14372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/04/2022] [Accepted: 03/14/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Functional dyspepsia (FD) is a common and debilitating gastrointestinal disorder attributed to altered gut-brain interactions. While the etiology of FD remains unknown, emerging research suggests the mechanisms are likely multifactorial and heterogenous among patient subgroups. Small bowel motor disturbances, visceral hypersensitivity, chronic microinflammation, and increased intestinal tract permeability have all been linked to the pathogenesis of FD. Recently, alterations to the gut microbiome have also been implicated to play an important role in the disease. Changes to the duodenal microbiota may either trigger or be a consequence of immune and neuronal disturbances observed in the disease, but the mechanisms of influence of small intestinal flora on gastrointestinal function and symptomatology are unknown. PURPOSE This review summarizes and synthesizes the literature on the link between the microbiota, low-grade inflammatory changes in the duodenum and FD. This review is not intended to provide a complete overview of FD or the small intestinal microbiota, but instead outline some of the key conceptual advances in understanding the interactions between altered gastrointestinal bacterial communities; dietary factors; host immune activation; and stimulation of the gut-brain axes in patients with FD versus controls. Current and emerging treatment approaches such as dietary interventions and antibiotic or probiotic use that have demonstrated symptom benefits for patients are reviewed, and their role in modulating the host-microbiota is discussed. Finally, suggested opportunities for diagnostic and therapeutic improvements for patients with this condition are presented.
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Affiliation(s)
- Georgia Brown
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia
| | - Emily C. Hoedt
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,School of Biomedical Sciences and PharmacyUniversity of NewcastleNewcastleNew South WalesAustralia,Hunter Medical Research InstituteNew Lambton HeightsNewcastleNew South WalesAustralia
| | - Simon Keely
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,School of Biomedical Sciences and PharmacyUniversity of NewcastleNewcastleNew South WalesAustralia,Hunter Medical Research InstituteNew Lambton HeightsNewcastleNew South WalesAustralia
| | - Ayesha Shah
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,Faculty of Medicine and Faculty of Health and Behavioural SciencesThe University of QueenslandSt. LuciaQueenslandAustralia
| | - Marjorie M. Walker
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia
| | - Gerald Holtmann
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,Faculty of Medicine and Faculty of Health and Behavioural SciencesThe University of QueenslandSt. LuciaQueenslandAustralia,Department of Gastroenterology & HepatologyPrincess Alexandra HospitalWoolloongabbaQueenslandAustralia
| | - Nicholas J. Talley
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,Hunter Medical Research InstituteNew Lambton HeightsNewcastleNew South WalesAustralia
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Zuccala E, Talley NJ. Health sector leadership is central to the fight against the climate crisis. Med J Aust 2022; 217:480-481. [DOI: 10.5694/mja2.51744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 09/15/2022] [Indexed: 11/06/2022]
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Oliver D, Talley NJ. In active Crohn disease, risankizumab increased clinical remission and endoscopic response at 12 wk. Ann Intern Med 2022; 175:JC114. [PMID: 36191314 DOI: 10.7326/j22-0080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
D'Haens G, Panaccione R, Baert F, et al. Risankizumab as induction therapy for Crohn's disease: results from the phase 3 ADVANCE and MOTIVATE induction trials. Lancet. 2022;399:2015-30. 35644154.
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Affiliation(s)
- Daniel Oliver
- University of Newcastle, Callaghan, New South Wales, Australia (D.O., N.J.T.)
| | - Nicholas J Talley
- University of Newcastle, Callaghan, New South Wales, Australia (D.O., N.J.T.)
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Tuteja AK, Talley NJ, Murtaugh MA, Loc-Carrillo CM, Stoddard GJ, Anderson GL. Randomized, Double-Blind Placebo-Controlled Trial to Assess the Effect of Probiotics on Irritable Bowel Syndrome in Veterans With Gulf War Illness. Fed Pract 2022; 39:410-417. [PMID: 36744017 PMCID: PMC9896367 DOI: 10.12788/fp.0322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Background Many veterans who served in Operation Desert Storm (August 1990 to March 1991) experienced a complex of symptoms of unknown etiology called Gulf War illness (GWI), which significantly impacts the health and quality of life (QOL) and may have contributed to irritable bowel syndrome (IBS). Methods We performed a prospective, double-blind placebocontrolled study to determine the efficacy of the multistrain De Simone Formulation probiotic containing 8 strains of bacteria on symptoms of IBS and GWI. Veterans of Operation Desert Storm who had IBS and ≥ 2 nonintestinal symptoms of GWI were included. The primary study endpoint was change in bowel symptom score. The secondary endpoints were mean change in symptoms, QOL, and extra-intestinal and posttraumatic stress disorder (PTSD) symptoms. Results A total of 101 Gulf War veterans with IBS and GWI were screened at the Veteran Affairs Medical Center in Salt Lake City, Utah. The study was completed by 53 veterans; 47 (89%) were male with a mean (SD) age of 55 (8) years. The probiotic did not improve IBS symptoms or other extra-intestinal symptoms common to IBS and GWI. Conclusions Our study did not demonstrate statistically significant improvement in IBS symptoms or QOL after treatment with the probiotic. We also did not find any improvement in symptoms of GWI or PTSD.
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Affiliation(s)
- Ashok K. Tuteja
- George E. Whalen Veterans Affairs Medical Center, Salt Lake City, Utah,University of Utah, Salt Lake City
| | | | | | - Catherine M. Loc-Carrillo
- George E. Whalen Veterans Affairs Medical Center, Salt Lake City, Utah,University of Utah, Salt Lake City
| | - Gregory J. Stoddard
- George E. Whalen Veterans Affairs Medical Center, Salt Lake City, Utah,University of Utah, Salt Lake City
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Shanahan ER, Kang S, Staudacher H, Shah A, Do A, Burns G, Chachay VS, Koloski NA, Keely S, Walker MM, Talley NJ, Morrison M, Holtmann GJ. Alterations to the duodenal microbiota are linked to gastric emptying and symptoms in functional dyspepsia. Gut 2022; 72:929-938. [PMID: 36167662 DOI: 10.1136/gutjnl-2021-326158] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 08/28/2022] [Indexed: 12/08/2022]
Abstract
OBJECTIVE Functional dyspepsia (FD) is a complex disorder, with debilitating epigastric symptoms. Evidence suggests alterations in gastrointestinal (GI) motility, visceral hypersensitivity, permeability and low-level immune activation in the duodenum may play a role. However, we still have a relatively poor understanding of how these factors interact to precipitate the onset of FD symptoms which are frequently meal related. The duodenal microbiota, in combination with specific dietary substrates, may be important mediators in disease pathophysiology; however, these interlinked factors have not been thoroughly investigated in FD. DESIGN Eighty-six individuals (56 FD, 30 controls) undergoing endoscopy were consecutively recruited and underwent detailed clinical assessment, including upper GI symptoms, gastric emptying and dietary assessment. Duodenal biopsies were obtained aseptically, and the mucosa-associated microbiota (MAM) analysed via 16S rRNA gene amplicon sequencing. RESULTS The relative abundances of predominant members of the Firmicutes, Bacteroidota and Fusobacteriota phyla were linked to symptom burden in FD. Inverse relationships between the relative abundances of Streptococcus and Prevotella, and the relative abundance of Veillonella spp with gastric emptying time, were also observed. No significant differences in long-term nutrient intake or diet quality were found between FD and controls, and there appeared to be limited association between habitual diet and duodenal MAM profiles. CONCLUSION This study suggests a link between the duodenal MAM, gastric emptying and FD symptoms, and this is largely independent of long-term dietary intake.
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Affiliation(s)
- Erin R Shanahan
- Faculty of Medicine and Faculty of Health & Behavioural Sciences, University of Queensland, Brisbane, Queensland, Australia.,Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Seungha Kang
- The University of Queensland Diamantina Institute, Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Heidi Staudacher
- Faculty of Medicine and Faculty of Health & Behavioural Sciences, University of Queensland, Brisbane, Queensland, Australia.,Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Ayesha Shah
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia.,Faculty of Medicine, Faculty of Health & Behavioural Sciences, and NHMRC Centre of Research Excellence Digestive Health, University of Queensland, Brisbane, Queensland, Australia
| | - Anh Do
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Grace Burns
- School of Biomedical Sciences and Pharmacy and NHMRC Centre of Research Excellence Digestive Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia.,Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Veronique S Chachay
- School of Human Movement and Nutrition Sciences, Faculty of Health and Behavioural Sciences, University of Queensland, Brisbane, Queensland, Australia
| | - Natasha A Koloski
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia.,Faculty of Medicine, Faculty of Health & Behavioural Sciences, and NHMRC Centre of Research Excellence Digestive Health, University of Queensland, Brisbane, Queensland, Australia
| | - Simon Keely
- School of Biomedical Sciences and Pharmacy and NHMRC Centre of Research Excellence Digestive Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia.,Immune Health Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Marjorie M Walker
- Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia.,School of Medicine and Public Health and NHMRC Centre of Research Excellence Digestive Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia
| | - Nicholas J Talley
- Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia.,School of Medicine and Public Health and NHMRC Centre of Research Excellence Digestive Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia
| | - Mark Morrison
- The University of Queensland Diamantina Institute and NHMRC Centre of Research Excellence Digestive Health, Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Gerald J Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia .,Faculty of Medicine, Faculty of Health & Behavioural Sciences, and NHMRC Centre of Research Excellence Digestive Health, University of Queensland, Brisbane, Queensland, Australia
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Jones MP, Shah A, Walker MM, Koloski NA, Holtmann G, Talley NJ. Overlap of heartburn, functional dyspepsia, and irritable bowel syndrome in a population sample: Prevalence, temporal stability, and associated comorbidities. Neurogastroenterol Motil 2022; 34:e14349. [PMID: 35293084 DOI: 10.1111/nmo.14349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/02/2022] [Accepted: 02/22/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND Co-occurring (overlapping) irritable bowel syndrome (IBS), functional dyspepsia (FD), and heartburn has been observed. However, whether it is a distinct entity has not been established, nor what clinical, demographic, lifestyle, and psychological traits are associated with it. This study sought to estimate the prevalence and temporal stability of this overlap and to identify features specific to it in order to gain some insights into the potential etiopathogenesis. METHODS Two waves of a survey to a population-representative sample were conducted 3 years apart, recruiting 1312 individuals for this study. The chance-expected probability of complete overlap (CO) was calculated and compared with the observed CO. A range of demographic, lifestyle factors, medical diagnoses, sleep quality, and psychological distress were tested to identify predictors of overlap using logistic regression. KEY RESULTS CO was observed in 2.1% (95% confidence interval 1.9, 3.7) of the sample and was closely replicated in wave 2 at 2.0%. The observed CO was greater than expected by chance (0.2%) to a statistically significant extent (p < 0.001). Overlap between IBS subtypes, FD subtypes, and heartburn was also elevated above chance expectation. Individuals with CO were separately differentiated from others with respect to elevated rates of self-reported medically diagnosed asthma, elevated psychological distress score, and elevated impact on sleep quality. The discrimination provided by these factors was further independent of age and sex. CONCLUSIONS AND INFERENCES Overlap between IBS, FD, and heartburn (GERD) appears to be a distinct entity that has a profile including psychological morbidity, sleep disturbance, and elevated rates of atopy.
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Affiliation(s)
- Michael P Jones
- School of Psychological Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Ayesha Shah
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Woolloongabba, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Marjorie M Walker
- College of Health, Medicine and Well Being, University of Newcastle, Newcastle, New South Wales, Australia
| | - Natasha A Koloski
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Woolloongabba, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.,College of Health, Medicine and Well Being, University of Newcastle, Newcastle, New South Wales, Australia
| | - Gerald Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Woolloongabba, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Nicholas J Talley
- College of Health, Medicine and Well Being, University of Newcastle, Newcastle, New South Wales, Australia
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Basnayake C, Kamm MA, Stanley A, Wilson-O'Brien A, Burrell K, Lees-Trinca I, Khera A, Kantidakis J, Wong O, Fox K, Talley NJ, Liew D, Salzberg MR, Thompson AJ. Long-Term Outcome of Multidisciplinary Versus Standard Gastroenterologist Care for Functional Gastrointestinal Disorders: A Randomized Trial. Clin Gastroenterol Hepatol 2022; 20:2102-2111.e9. [PMID: 34896645 DOI: 10.1016/j.cgh.2021.12.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/28/2021] [Accepted: 12/02/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Functional gastrointestinal disorders are common and costly to the healthcare system. In the Multidisciplinary Treatment of Functional Gastrointestinal Disorders study, we demonstrated that multidisciplinary care resulted in superior clinical and cost outcomes, when compared with standard gastroenterologist-only care at end of treatment. In this study we evaluate the longer-term outcomes. METHODS In a single-center, pragmatic trial patients with Rome IV criteria-defined functional gastrointestinal disorders were randomized 1:2 to a gastroenterologist-only standard care vs a multidisciplinary clinic comprising gastroenterologists, dietitians, gut hypnotherapists, psychiatrists, and biofeedback physiotherapists. Outcomes in this study were assessed 12 months after the end of treatment. Global symptom improvement was assessed by using a 5-point Likert scale. Symptoms, specific disorder status, psychological state, quality of life, and cost were additional outcomes. A modified intention-to-treat analysis was performed. RESULTS Of 188 randomized patients, 143 (46 standard care, 97 multidisciplinary) formed the longer-term modified intention-to-treat analysis. Sixty-two percent of multidisciplinary clinic patients saw allied clinicians. Sixty-five percent (30/46) standard care versus 76% (74/97) multidisciplinary clinic patients achieved global symptom improvement 12 months after end of treatment (P = .17), whereas 20% (9/46) versus 37% (36/97) rated their symptoms as "5/5 much better" (P = .04). A ≥50-point reduction in Irritable Bowel Syndrome Severity Scoring System occurred in 38% versus 66% (P = .02), respectively, for irritable bowel syndrome patients. Anxiety and depression were greater in the standard care than multidisciplinary clinic (12 vs 10, P = .19), and quality of life was lower in standard care than the multidisciplinary clinic (0.75 vs 0.77, P =·.03). An incremental cost-effectivness ratio found that for every additional 3555AUD spent in the multidisciplinary clinic, a further quality-adjusted life year was gained. CONCLUSIONS Twelve months after the completion of treatment, integrated multidisciplinary clinical care achieved a greater proportion of patients with improvement of symptoms, psychological state, quality of life, and cost, compared with gastroenterologist-only care. CLINICAL TRIALS gov: number NCT03078634.
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Affiliation(s)
- Chamara Basnayake
- St Vincent's Hospital Melbourne, Melbourne, Australia; University of Melbourne, Melbourne, Australia
| | - Michael A Kamm
- St Vincent's Hospital Melbourne, Melbourne, Australia; University of Melbourne, Melbourne, Australia.
| | | | | | | | | | - Angela Khera
- St Vincent's Hospital Melbourne, Melbourne, Australia; University of Melbourne, Melbourne, Australia
| | | | - Olivia Wong
- St Vincent's Hospital Melbourne, Melbourne, Australia
| | - Kate Fox
- St Vincent's Hospital Melbourne, Melbourne, Australia
| | | | | | | | - Alexander J Thompson
- St Vincent's Hospital Melbourne, Melbourne, Australia; University of Melbourne, Melbourne, Australia
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Bolan S, Seshadri B, Kunhikrishnan A, Grainge I, Talley NJ, Bolan N, Naidu R. Differential toxicity of potentially toxic elements to human gut microbes. Chemosphere 2022; 303:134958. [PMID: 35595114 DOI: 10.1016/j.chemosphere.2022.134958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/23/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Specific microorganisms in the human gut (i.e., gut microbes) provide mutually beneficial outcomes such as microbial balance by inhibiting the growth of pathogenic organisms, immune system modulation, fermentation of ingested products, and vitamin production. The intake of contaminants including potenially toxic elements (PTEs) can occur through food, air, water and some medicines. The gut microbes not only can be affected by environmental contaminants but they themselves can alter the speciation and bioavailability of these contaminants. This research work was designed to demonstrate the relationship between increasing level of selected PTEs including As, Cd, Pb and Hg on the growth of selected gut microbes. The toxicity of above mentioned PTEs to three gut bacteria (Lactobacillus rhamnosus, Lactobacillus acidophilus and Escherichia coli) was examined. While the toxicity of all the cationic PTEs including Cd, Pb and Hg towards gut bacteria decreased with increasing pH, the anionic As species exhibited an opposite effect. The order of toxicity was Hg > Cd > Pb > As(III)>As(V) for E. coli; and Hg > Cd > As(III)>Pb > As(V) for the two Lactobacillus sp. Arsenite (AsIII) showed higher toxicity than arsenate (AsV) to gut bacteria. While As is an anion, Cd, Pb and Hg are cations and hence their binding capacity to the bacterial cell wall varied based on the charge dependent functional groups. However, the toxic effects of PTEs for a bacteria are controlled by their speciation and bioavailability.
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Affiliation(s)
- Shiv Bolan
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, Australia; School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia.
| | - Balaji Seshadri
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, Australia
| | - Anitha Kunhikrishnan
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, Australia
| | - Ian Grainge
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, Australia
| | - Nicholas J Talley
- Faculty of Health and Medicine, The University of Newcastle, Callaghan, Australia
| | - Nanthi Bolan
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia
| | - Ravi Naidu
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, Australia
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43
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Talley NJ. The impact of the
MJA
continues its rise. Med J Aust 2022; 217:187-188. [DOI: 10.5694/mja2.51660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 07/04/2022] [Indexed: 11/17/2022]
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44
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Oliver D, Talley NJ. In drug-refractory IBS, group CBT with interoceptive exposure improved symptoms and QoL at 13 wk. Ann Intern Med 2022; 175:JC90. [PMID: 35914262 DOI: 10.7326/j22-0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Kikuchi S, Oe Y, Ito Y, et al. Group cognitive-behavioral therapy with interoceptive exposure for drug-refractory irritable bowel syndrome: a randomized controlled trial. Am J Gastroenterol. 2022;117:668-77. 35103022.
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Affiliation(s)
- Daniel Oliver
- University of Newcastle and John Hunter Hospital, Newcastle, New South Wales, Australia (D.O., N.J.T.)
| | - Nicholas J Talley
- University of Newcastle and John Hunter Hospital, Newcastle, New South Wales, Australia (D.O., N.J.T.)
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45
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Dorrigan A, Zuccala E, Talley NJ. Striving for gender equity at the
Medical Journal of Australia. Med J Aust 2022; 217:138-139. [DOI: 10.5694/mja2.51642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 06/16/2022] [Indexed: 11/17/2022]
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46
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Wauters L, Li H, Talley NJ. Editorial: Disruption of the Microbiota-Gut-Brain Axis in Functional Dyspepsia and Gastroparesis: Mechanisms and Clinical Implications. Front Neurosci 2022; 16:941810. [PMID: 35864983 PMCID: PMC9295387 DOI: 10.3389/fnins.2022.941810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Lucas Wauters
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
- *Correspondence: Lucas Wauters
| | - Hui Li
- Vagal Afferent Research Group, Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Nicholas J. Talley
- National Health and Medical Research Council (NHMRC) Centre of Research Excellence in Digestive Health, University of Newcastle, Newcastle, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
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47
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Talley NJ, Zuccala E, Geronimo F, Janusic T, Villanueva EV. Strengthening the presence of Aboriginal and Torres Strait Islander voices in the
Medical Journal of Australia. Med J Aust 2022; 217:24-25. [DOI: 10.5694/mja2.51608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 11/17/2022]
Affiliation(s)
| | | | | | | | - Elmer V Villanueva
- Medical Journal of Australia Sydney NSW
- Xi'an Jiaotong–Liverpool University Suzhou China
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48
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Eley DS, Hu W, Talley NJ. Educating future clinician academics: the role of medical schools. Med J Aust 2022; 217:16-19. [DOI: 10.5694/mja2.51596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/28/2022] [Accepted: 04/04/2022] [Indexed: 11/17/2022]
Affiliation(s)
| | - Wendy Hu
- Western Sydney University Sydney NSW
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49
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Jones MP, Yun G, Wass F, Rixon H, Shah A, Walker MM, Koloski NA, Holtmann G, Talley NJ, Beath AP. The role of mood state and emotion regulation in the discrepancy between gastrointestinal symptom burden recorded prospectively and via recall questionnaire. Neurogastroenterol Motil 2022; 34:e14304. [PMID: 34854512 DOI: 10.1111/nmo.14304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/17/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND There is limited empirical evidence of the magnitude of the discrepancy between prospectively recorded gastrointestinal symptom burden and that reported in recall questionnaires. Further, potential sources of the discrepancy are largely unknown. This study sought to quantify the discrepancy and to evaluate the potential role of mood disorder and emotion regulation in the discrepancy. METHODS One hundred and forty nine subjects (mean age 20 years, 75% female) who met Rome IV criteria for irritable bowel syndrome and/or functional dyspepsia completed a 7-day prospective recording of the symptoms on a smartphone implemented ecological momentary assessment app, and then on day 8 were asked to recall their symptoms for the preceding 7 days. KEY RESULTS Gastrointestinal symptom burden assessed by recall was exaggerated relative to that recorded prospectively. The discrepancy was moderate for overall score (Cohen d = 0.52), abdominal pain (d = 0.61) and indigestion (d = 0.49). The discrepancy was generally larger among subjects who reported a physician diagnosis of a gastrointestinal condition with d = 0.87 for overall score and d = 0.89 for abdominal pain. A number of correlations between the discrepancy and psychological traits were identified, including neuroticism with diarrhea discrepancy (r = 0.23, p = 0.004) and visceral-specific anxiety with abdominal pain discrepancy (r = -0.18, p = 0.03). There was no evidence of recency or Hawthorne (observer) effects. CONCLUSIONS AND INFERENCES Reports of gastrointestinal symptoms obtained via recall are likely to be exaggerated relative to the actual patient experience, particularly among healthcare seekers. While psychological traits are likely to play some role, much more needs to be understood about the discrepancy.
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Affiliation(s)
- Michael P Jones
- School of Psychological Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Grace Yun
- School of Psychological Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Fiona Wass
- School of Psychological Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Hayley Rixon
- School of Psychological Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Ayesha Shah
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Woolloongabba, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Marjorie M Walker
- College of Health, Medicine and Well Being, University of Newcastle, Newcastle, New South Wales, Australia
| | - Natasha A Koloski
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Woolloongabba, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.,College of Health, Medicine and Well Being, University of Newcastle, Newcastle, New South Wales, Australia
| | - Gerald Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital and Translational Research Institute (TRI), Woolloongabba, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Nicholas J Talley
- College of Health, Medicine and Well Being, University of Newcastle, Newcastle, New South Wales, Australia
| | - Alissa P Beath
- School of Psychological Sciences, Macquarie University, North Ryde, New South Wales, Australia
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50
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Cuskelly A, Hoedt EC, Harms L, Talley NJ, Tadros MA, Keely S, Hodgson DM. Neonatal immune challenge influences the microbiota and behaviour in a sexually dimorphic manner. Brain Behav Immun 2022; 103:232-242. [PMID: 35491004 DOI: 10.1016/j.bbi.2022.04.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/31/2022] [Accepted: 04/26/2022] [Indexed: 10/18/2022] Open
Abstract
There is comorbidity between anxiety disorders and gastrointestinal disorders, with both linked to adverse early life events. The microbiome gut-brain-axis, a bidirectional communication system, is plastic throughout the neonatal period and is a possible mediator of this relationship. Here, we used a well-established neonatal rodent immune activation model to investigate the long-term effect of neonatal lipopolysaccharide (LPS) exposure on adult behaviour and the relationship to microbiome composition. Wistar rats were injected with LPS (0.05 mg/kg) or saline (equivolume) on postnatal days 3 and 5. In adulthood, behavioural tests were performed to assess anxiety-like behaviour, and microbiota sequencing was performed on stool samples. There were distinctly different behavioural phenotypes for LPS-exposed males and females. LPS-exposed males displayed typical anxiety-like behaviours with significantly decreased social interaction (F(1,22) = 7.576, p = 0.009) and increased defecation relative to saline controls (F(1,23) = 8.623, p = 0.005). LPS-exposed females displayed a different behavioural phenotype with significantly increased social interaction (F(1,22) = 6.094, p = 0.018), and exploration (F(1,24) = 6.359, p = 0.015), compared to saline controls. With respect to microbiota profiling data, Bacteroidota was significantly increased for LPS-exposed females (F(1,14) = 4.931p = 0.035) and Proteobacteria was decreased for LPS-exposed rats of both sexes versus controls (F(1,30) = 4.923p = 0.035). Furthermore, alterations in predicted functional pathways for neurotransmitters in faeces were observed with a decrease in the relative abundance of D-glutamine and D-glutamate metabolism in LPS exposed females compared to control females (p < 0.05). This suggests that neonatal immune activation alters both later life behaviour and adult gut microbiota in sex-specific ways. These findings highlight the importance of sex in determining the impact of neonatal immune activation on social behaviour and the gut microbiota.
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Affiliation(s)
- A Cuskelly
- School of Psychological Sciences, University of Newcastle, Callaghan, NSW, Australia; Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) Program, Hunter Medical Research Institute (HMRI), Newcastle, NSW, Australia.
| | - E C Hoedt
- Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) Program, Hunter Medical Research Institute (HMRI), Newcastle, NSW, Australia; NHMRC Centre of Research Excellence (CRE) in Digestive Health, HMRI, Newcastle, NSW, Australia; School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia
| | - L Harms
- School of Medicine and Public Health, University of Newcastle, New Lambton, NSW, Australia
| | - N J Talley
- Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) Program, Hunter Medical Research Institute (HMRI), Newcastle, NSW, Australia; NHMRC Centre of Research Excellence (CRE) in Digestive Health, HMRI, Newcastle, NSW, Australia; School of Medicine and Public Health, University of Newcastle, New Lambton, NSW, Australia
| | - M A Tadros
- School of Medicine and Public Health, University of Newcastle, New Lambton, NSW, Australia
| | - S Keely
- Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) Program, Hunter Medical Research Institute (HMRI), Newcastle, NSW, Australia; NHMRC Centre of Research Excellence (CRE) in Digestive Health, HMRI, Newcastle, NSW, Australia; School of Medicine and Public Health, University of Newcastle, New Lambton, NSW, Australia
| | - D M Hodgson
- School of Psychological Sciences, University of Newcastle, Callaghan, NSW, Australia; Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) Program, Hunter Medical Research Institute (HMRI), Newcastle, NSW, Australia
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