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Brindicci VF, Franceschini S, Gnasso I, Alcini P, Tassi EA, Santarelli L, Cristofori F, Dargenio VN, Castellaneta S, Francavilla R. Self-Reported Nonceliac Gluten Sensitivity in Italian Young Adults: A Cross-Sectional Study. A Dietary Fad? Am J Gastroenterol 2024:00000434-990000000-01188. [PMID: 38874216 DOI: 10.14309/ajg.0000000000002885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
INTRODUCTION In different countries, the exact prevalence of people that refer symptoms after gluten ingestion is increasing and the unavailability of reliable laboratory tests to diagnose the condition known as nonceliac gluten sensitivity (NCGS) has opened the door to the spread of survey-based studies to hypothesize a prevalence of this condition with highly discordant results. We aim to describe the attitude toward gluten consumption in a large population of young adults in Italy. METHODS A questionnaire-based cross-sectional study was conducted in 13 Italian cities to investigate the dietary attitudes of more than 9,400 people distributed throughout the country about gluten consumption. Only those referring to gluten-related symptoms with a frequency equal to "always" or "most of the time" were considered self-reported NCGS (SR-NCGS) patients. RESULTS Five thousand two hundred thirty-four of 9,432 eligible participants (55.5%) fully completed the questionnaire. Excluding those with previous gastrointestinal diagnoses of celiac disease and wheat allergy, we have finally analyzed 4,987 questionnaires. Four hundred eighty-seven participants indicated gluten-related symptoms always or most of the time (SR-NCGS subjects), while 121 already had a medical diagnosis of NCGS. The minimum prevalence figure of SR-NCGS is 6.4% (95% confidence interval 6.0-6.9), with a higher prevalence in women (79.9%). The most frequent gluten-related symptoms were bloating, abdominal pain, and tiredness. DISCUSSION The high prevalence of people reporting symptoms after gluten ingestion requires that the diagnosis of NCGS should be ascertained with a double-blind controlled study to limit the number of people who improperly approach a gluten-free diet.
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Affiliation(s)
- Viviana Fara Brindicci
- Interdisciplinary Department of Medicine, Pediatric Section, Children's Hospital "Giovanni XXIII," University of Bari "Aldo Moro," Bari, Italy
| | - Simone Franceschini
- University of Chieti, Department of Medicine and Aging Sciences, Chieti, Italy
| | - Ilaria Gnasso
- Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Paride Alcini
- University of Chieti, Department of Medicine and Aging Sciences, Chieti, Italy
| | | | - Lorenzo Santarelli
- University of Chieti, Department of Medicine and Aging Sciences, Chieti, Italy
| | - Fernanda Cristofori
- Interdisciplinary Department of Medicine, Pediatric Section, Children's Hospital "Giovanni XXIII," University of Bari "Aldo Moro," Bari, Italy
| | - Vanessa Nadia Dargenio
- Interdisciplinary Department of Medicine, Pediatric Section, Children's Hospital "Giovanni XXIII," University of Bari "Aldo Moro," Bari, Italy
| | - Stefania Castellaneta
- Interdisciplinary Department of Medicine, Pediatric Section, Children's Hospital "Giovanni XXIII," University of Bari "Aldo Moro," Bari, Italy
| | - Ruggiero Francavilla
- Interdisciplinary Department of Medicine, Pediatric Section, Children's Hospital "Giovanni XXIII," University of Bari "Aldo Moro," Bari, Italy
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San Mauro Martín I, López Oliva S, Garicano Vilar E, Sánchez Niño GM, Penadés BF, Terrén Lora A, Sanz Rojo S, Collado Yurrita L. Effects of Gluten on Gut Microbiota in Patients with Gastrointestinal Disorders, Migraine, and Dermatitis. Nutrients 2024; 16:1228. [PMID: 38674918 PMCID: PMC11053402 DOI: 10.3390/nu16081228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/05/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
As gluten may trigger gastrointestinal disorders (GIDs), its presence or absence in the diet can change the diversity and proportion of gut microbiota. The effects of gluten after six weeks of a double-blind, placebo-controlled intervention with a gluten-free diet (GFD) were studied in participants with GIDs suffering from migraines and atopic dermatitis (n = 46). Clinical biomarkers, digestive symptoms, stool, the Migraine Disability Assessment questionnaire, and zonulin levels were analyzed. Next-generation sequencing was used to amplify the 16S rRNA gene of bacteria and the internal transcribed spacer (ITS) regions of fungi. The GFD increased Chao1 fungal diversity after the intervention, while the fungal composition showed no changes. Bacterial diversity and composition remained stable, but a positive association between bacterial and fungal Chao1 diversity and a negative association between Dothideomycetes and Akkermansia were observed. GIDs decreased in both groups and migraines improved in the placebo group. Our findings may aid the development of GID treatment strategies.
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Affiliation(s)
- Ismael San Mauro Martín
- Research Centers in Nutrition and Health (CINUSA Group), Paseo de la Habana 43, 28036 Madrid, Spain; (I.S.M.M.); (S.L.O.); (E.G.V.); (G.M.S.N.); (B.F.P.); (A.T.L.); (S.S.R.)
| | - Sara López Oliva
- Research Centers in Nutrition and Health (CINUSA Group), Paseo de la Habana 43, 28036 Madrid, Spain; (I.S.M.M.); (S.L.O.); (E.G.V.); (G.M.S.N.); (B.F.P.); (A.T.L.); (S.S.R.)
| | - Elena Garicano Vilar
- Research Centers in Nutrition and Health (CINUSA Group), Paseo de la Habana 43, 28036 Madrid, Spain; (I.S.M.M.); (S.L.O.); (E.G.V.); (G.M.S.N.); (B.F.P.); (A.T.L.); (S.S.R.)
| | - Guerthy Melissa Sánchez Niño
- Research Centers in Nutrition and Health (CINUSA Group), Paseo de la Habana 43, 28036 Madrid, Spain; (I.S.M.M.); (S.L.O.); (E.G.V.); (G.M.S.N.); (B.F.P.); (A.T.L.); (S.S.R.)
| | - Bruno F. Penadés
- Research Centers in Nutrition and Health (CINUSA Group), Paseo de la Habana 43, 28036 Madrid, Spain; (I.S.M.M.); (S.L.O.); (E.G.V.); (G.M.S.N.); (B.F.P.); (A.T.L.); (S.S.R.)
| | - Ana Terrén Lora
- Research Centers in Nutrition and Health (CINUSA Group), Paseo de la Habana 43, 28036 Madrid, Spain; (I.S.M.M.); (S.L.O.); (E.G.V.); (G.M.S.N.); (B.F.P.); (A.T.L.); (S.S.R.)
| | - Sara Sanz Rojo
- Research Centers in Nutrition and Health (CINUSA Group), Paseo de la Habana 43, 28036 Madrid, Spain; (I.S.M.M.); (S.L.O.); (E.G.V.); (G.M.S.N.); (B.F.P.); (A.T.L.); (S.S.R.)
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Landaas VØ, Skjerven HO, Carlsen KCL, Størdal K, Håland G. Home-Based Double-Blind, Placebo-Controlled Challenges for Diagnosis of Delayed Gluten/Milk Hypersensitivity in Children. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:652-659.e5. [PMID: 38154555 DOI: 10.1016/j.jaip.2023.12.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Delayed hypersensitivity to gluten and milk protein is frequently reported but may be difficult to diagnose. OBJECTIVE We aimed to explore if a method of home-based double-blind placebo-controlled food challenges (H-FC) can identify and reduce unnecessary elimination diets in children. METHODS We included 73 of 92 children aged 1 to 17 years referred to a tertiary allergy clinic from 2011 to 2021 due to self-reported, delayed symptoms to gluten or milk. The children were randomized to H-FC, receiving gluten/milk protein or placebo for 5 to 7 days in a double-blind crossover manner, separated by 3 washout weeks. Patients/parents recorded symptoms using standardized forms. Two crossover periods were used from 2011 to 2016 and 3 periods from 2017 to 2021. A positive challenge required significantly more symptoms during the active period versus the placebo period. After the challenge, reintroduction of milk/gluten was assessed by a follow-up interview. The primary outcome was the proportion of children with a positive challenge. RESULTS The children, with a mean age of 11 years, had followed a strict gluten-free or milk-protein-free diet for a median duration of 24 months (range: 3-180 months). A positive challenge was observed in 18 of 73 children (25%), more often using 2 (35%) compared with 3 challenge periods (12%). At follow-up, 44 of 55 (80%) children with a negative challenge had successfully reintroduced milk/gluten. CONCLUSIONS H-FC may be an effective method in avoiding unnecessary elimination diets in children. Only 25% of the challenges were positive, and 80% of the children with negative challenges succeeded in reintroducing the food. Three challenge periods may be necessary to reduce false-positive outcomes.
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Affiliation(s)
- Vibeke Østberg Landaas
- Division of Child and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Håvard Ove Skjerven
- Division of Child and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Karin C Lødrup Carlsen
- Division of Child and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Ketil Størdal
- Division of Child and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Geir Håland
- Division of Child and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
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Rhys‐Jones D, Yao CK, Gibson PR. Perceived food intolerances can guide personalization of the FODMAP diet but not the choice of dietary intervention. JGH Open 2023; 7:737-739. [PMID: 38034054 PMCID: PMC10684989 DOI: 10.1002/jgh3.13017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023]
Affiliation(s)
- Dakota Rhys‐Jones
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Chu K Yao
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Peter R Gibson
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
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D’Amico V, Gänzle M, Call L, Zwirzitz B, Grausgruber H, D’Amico S, Brouns F. Does sourdough bread provide clinically relevant health benefits? Front Nutr 2023; 10:1230043. [PMID: 37545587 PMCID: PMC10399781 DOI: 10.3389/fnut.2023.1230043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 06/27/2023] [Indexed: 08/08/2023] Open
Abstract
During the last decade, scientific interest in and consumer attention to sourdough fermentation in bread making has increased. On the one hand, this technology may favorably impact product quality, including flavor and shelf-life of bakery products; on the other hand, some cereal components, especially in wheat and rye, which are known to cause adverse reactions in a small subset of the population, can be partially modified or degraded. The latter potentially reduces their harmful effects, but depends strongly on the composition of sourdough microbiota, processing conditions and the resulting acidification. Tolerability, nutritional composition, potential health effects and consumer acceptance of sourdough bread are often suggested to be superior compared to yeast-leavened bread. However, the advantages of sourdough fermentation claimed in many publications rely mostly on data from chemical and in vitro analyzes, which raises questions about the actual impact on human nutrition. This review focuses on grain components, which may cause adverse effects in humans and the effect of sourdough microbiota on their structure, quantity and biological properties. Furthermore, presumed benefits of secondary metabolites and reduction of contaminants are discussed. The benefits claimed deriving from in vitro and in vivo experiments will be evaluated across a broader spectrum in terms of clinically relevant effects on human health. Accordingly, this critical review aims to contribute to a better understanding of the extent to which sourdough bread may result in measurable health benefits in humans.
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Affiliation(s)
- Vera D’Amico
- Department of Food Science and Technology, BOKU–University of Natural Resources and Life Sciences, Vienna, Austria
| | - Michael Gänzle
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Lisa Call
- Department of Crop Sciences, BOKU–University of Natural Resources and Life Sciences, Tulln, Austria
| | - Benjamin Zwirzitz
- Department of Food Science and Technology, BOKU–University of Natural Resources and Life Sciences, Vienna, Austria
| | - Heinrich Grausgruber
- Department of Crop Sciences, BOKU–University of Natural Resources and Life Sciences, Tulln, Austria
| | - Stefano D’Amico
- Institute for Animal Nutrition and Feed, AGES–Austrian Agency for Health and Food Safety, Vienna, Austria
| | - Fred Brouns
- Department of Human Biology, School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
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Lenti MV, Aronico N, Bianchi PI, D'Agate CC, Neri M, Volta U, Mumolo MG, Astegiano M, Calabrò AS, Zingone F, Latella G, Di Sario A, Carroccio A, Ciacci C, Luzza F, Bagnato C, Fantini MC, Elli L, Cammarota G, Gasbarrini A, Portincasa P, Latorre MA, Petrucci C, Quatraccioni C, Iannelli C, Vecchione N, Rossi CM, Broglio G, Ianiro G, Marsilio I, Bibbò S, Marinoni B, Tomaselli D, Abenavoli L, Pilia R, Santacroce G, Lynch E, Carrieri A, Mansueto P, Gabba M, Alunno G, Rossi C, Onnis F, Efthymakis K, Cesaro N, Vernero M, Baiano Svizzero F, Semeraro FP, Silano M, Vanoli A, Klersy C, Corazza GR, Di Sabatino A. Diagnostic delay in adult coeliac disease: An Italian multicentre study. Dig Liver Dis 2022; 55:743-750. [PMID: 36567177 DOI: 10.1016/j.dld.2022.11.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND There are few data regarding the diagnostic delay and its predisposing factors in coeliac disease (CD). AIMS To investigate the overall, the patient-dependant, and the physician-dependant diagnostic delays in CD. METHODS CD adult patients were retrospectively enroled at 19 Italian CD outpatient clinics (2011-2021). Overall, patient-dependant, and physician-dependant diagnostic delays were assessed. Extreme diagnostic, i.e., lying above the third quartile of our population, was also analysed. Multivariable regression models for factors affecting the delay were fitted. RESULTS Overall, 2362 CD patients (median age at diagnosis 38 years, IQR 27-46; M:F ratio=1:3) were included. The median overall diagnostic delay was 8 months (IQR 5-14), while patient- and physician-dependant delays were 3 (IQR 2-6) and 4 (IQR 2-6) months, respectively. Previous misdiagnosis was associated with greater physician-dependant (1.076, p = 0.005) and overall (0.659, p = 0.001) diagnostic delays. Neurological symptoms (odds ratio 2.311, p = 0.005) and a previous misdiagnosis (coefficient 9.807, p = 0.000) were associated with a greater extreme physician-dependant delay. Gastrointestinal symptoms (OR 1.880, p = 0.004), neurological symptoms (OR 2.313, p = 0.042), and previous misdiagnosis (OR 4.265, p = 0.000) were associated with increased extreme overall diagnostic delay. CONCLUSION We identified some factors that hamper CD diagnosis. A proper screening strategy for CD should be implemented.
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Affiliation(s)
- Marco Vincenzo Lenti
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Nicola Aronico
- First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Paola Ilaria Bianchi
- First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Carmela Cinzia D'Agate
- Department of Gastroenterology and Endoscopy, University Hospital "G. Rodolico", Catania, Italy
| | - Matteo Neri
- Department of Medicine and Ageing Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - Umberto Volta
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Maria Gloria Mumolo
- Department of General Surgery and Gastroenterology, Pisa University Hospital, Pisa, Italy
| | - Marco Astegiano
- SC Gastroenterologia AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Antonino Salvatore Calabrò
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio" University of Florence, Florence, Italy
| | - Fabiana Zingone
- Department of Surgery, Oncology and Gastroenterology, University of Padua, and Gastroenterology Unit, Azienda Ospedale Università, Padova, Italy
| | - Giovanni Latella
- Gastroenterology, Hepatology and Nutrition Division, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Antonio Di Sario
- Department of Gastroenterology and Transplantation, Polytechnic Marche University, Ancona, Italy
| | - Antonio Carroccio
- Internal Medicine Unit, "V. Cervello Hospital", University of Palermo, Palermo, Italy
| | - Carolina Ciacci
- Department of Medicine and Surgery, Gastroenterology Unit, University of Salerno, Salerno, Italy
| | - Francesco Luzza
- Department of Health Sciences, Magna Græcia University, Catanzaro, Italy
| | - Carmela Bagnato
- Clinical Nutrition Unit, Madonna delle Grazie Hospital, Matera, Italy
| | | | - Luca Elli
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Giovanni Cammarota
- Digestive Disease Centre, Fondazione Policlinico Universitario A. Gemelli IRCCS, Medicina Interna e Gastroenterologia, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Antonio Gasbarrini
- Digestive Disease Centre, Fondazione Policlinico Universitario A. Gemelli IRCCS, Medicina Interna e Gastroenterologia, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Piero Portincasa
- Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, Clinica Medica "A. Murri", Bari, Italy
| | - Mario Andrea Latorre
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Clarissa Petrucci
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Claudia Quatraccioni
- Gastroenterology, Hepatology and Nutrition Division, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Chiara Iannelli
- Department of Health Sciences, Magna Græcia University, Catanzaro, Italy
| | - Nicoletta Vecchione
- Department of Gastroenterology and Endoscopy, University Hospital "G. Rodolico", Catania, Italy
| | - Carlo Maria Rossi
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Giacomo Broglio
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Gianluca Ianiro
- Digestive Disease Centre, Fondazione Policlinico Universitario A. Gemelli IRCCS, Medicina Interna e Gastroenterologia, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Ilaria Marsilio
- Department of Surgery, Oncology and Gastroenterology, University of Padua, and Gastroenterology Unit, Azienda Ospedale Università, Padova, Italy
| | - Stefano Bibbò
- Digestive Disease Centre, Fondazione Policlinico Universitario A. Gemelli IRCCS, Medicina Interna e Gastroenterologia, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Beatrice Marinoni
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | | | - Ludovico Abenavoli
- Department of Health Sciences, Magna Græcia University, Catanzaro, Italy
| | - Riccardo Pilia
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy
| | - Giovanni Santacroce
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Erica Lynch
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio" University of Florence, Florence, Italy
| | - Antonella Carrieri
- Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, Clinica Medica "A. Murri", Bari, Italy
| | - Pasquale Mansueto
- Internal Medicine Unit, "V. Cervello Hospital", University of Palermo, Palermo, Italy
| | - Margherita Gabba
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Giacomo Alunno
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Chiara Rossi
- Department of Gastroenterology and Transplantation, Polytechnic Marche University, Ancona, Italy
| | - Francesca Onnis
- Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy
| | - Konstantinos Efthymakis
- Department of Medicine and Ageing Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - Nicola Cesaro
- Gastroenterology, Hepatology and Nutrition Division, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Marta Vernero
- SC Gastroenterologia AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | | | | | | | - Alessandro Vanoli
- Unit of Anatomic Pathology, Department of Molecular Medicine, University of Pavia, and IRCCS San Matteo Hospital Foundation, Pavia, Italy
| | - Catherine Klersy
- Clinical Epidemiology and Biometry Service, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Gino Roberto Corazza
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Antonio Di Sabatino
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
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Rej A, Sanders DS, Shaw CC, Buckle R, Trott N, Agrawal A, Aziz I. Efficacy and Acceptability of Dietary Therapies in Non-Constipated Irritable Bowel Syndrome: A Randomized Trial of Traditional Dietary Advice, the Low FODMAP Diet, and the Gluten-Free Diet. Clin Gastroenterol Hepatol 2022; 20:2876-2887.e15. [PMID: 35240330 DOI: 10.1016/j.cgh.2022.02.045] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/11/2022] [Accepted: 02/17/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Various diets are proposed as first-line therapies for non-constipated irritable bowel syndrome (IBS) despite insufficient or low-quality evidence. We performed a randomized trial comparing traditional dietary advice (TDA) against the low FODMAP diet (LFD) and gluten-free diet (GFD). METHODS Patients with Rome IV-defined non-constipated IBS were randomized to TDA, LFD, or GFD (the latter allowing for minute gluten cross-contamination). The primary end point was clinical response after 4 weeks of dietary intervention, as defined by ≥50-point reduction in IBS symptom severity score (IBS-SSS). Secondary end points included (1) changes in individual IBS-SSS items within clinical responders, (2) acceptability and food-related quality of life with dietary therapy, (3) changes in nutritional intake, (4) alterations in stool dysbiosis index, and (5) baseline factors associated with clinical response. RESULTS The primary end point of ≥50-point reduction in IBS-SSS was met by 42% (n = 14/33) undertaking TDA, 55% (n = 18/33) for LFD, and 58% (n = 19/33) for GFD (P = .43). Responders had similar improvements in IBS-SSS items regardless of their allocated diet. Individuals found TDA cheaper (P < .01), less time-consuming to shop (P < .01), and easier to follow when eating out (P = .03) than the GFD and LFD. TDA was also easier to incorporate into daily life than the LFD (P = .02). Overall reductions in micronutrient and macronutrient intake did not significantly differ across the diets. However, the LFD group had the greatest reduction in total FODMAP content (27.7 g/day before intervention to 7.6 g/day at week 4) compared with the GFD (27.4 g/day to 22.4 g/day) and TDA (24.9 g/day to 15.2 g/day) (P < .01). Alterations in stool dysbiosis index were similar across the diets, with 22%-29% showing reduced dysbiosis, 35%-39% no change, and 35%-40% increased dysbiosis (P = .99). Baseline clinical characteristics and stool dysbiosis index did not predict response to dietary therapy. CONCLUSIONS TDA, LFD, and GFD are effective approaches in non-constipated IBS, but TDA is the most patient-friendly in terms of cost and convenience. We recommend TDA as the first-choice dietary therapy in non-constipated IBS, with LFD and GFD reserved according to specific patient preferences and specialist dietetic input. CLINICALTRIALS gov: NCT04072991.
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Affiliation(s)
- Anupam Rej
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom; Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - David S Sanders
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom; Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - Christian C Shaw
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
| | - Rachel Buckle
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
| | - Nick Trott
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
| | - Anurag Agrawal
- Doncaster and Bassetlaw Hospitals NHS Trust, Doncaster, United Kingdom
| | - Imran Aziz
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom; Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom.
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Pessarelli T, Sorge A, Elli L, Costantino A. The low-FODMAP diet and the gluten-free diet in the management of functional abdominal bloating and distension. Front Nutr 2022; 9:1007716. [PMID: 36424920 PMCID: PMC9678936 DOI: 10.3389/fnut.2022.1007716] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 10/17/2022] [Indexed: 11/15/2023] Open
Abstract
This review summarizes current knowledge on the role of low-FODMAP diet and gluten-free diet in functional abdominal bloating and distension, an emerging disorder of gut-brain interaction characterized by remarkable costs for healthcare systems and a significant impact on the patient's quality of life. Ingested food plays a key role in the pathophysiology of disorders of gut-brain interaction as up to 84% of patients with irritable bowel syndrome (IBS) report food-triggered symptoms. Potential pathogenetic mechanisms of food-related symptoms in these patients are discussed, focusing on bloating and abdominal distension. These mechanisms provide the rationale for dietary treatment in patients with functional abdominal bloating and distension. The role of fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAPs) and gluten in functional abdominal bloating and distension is examined. Current literature evaluating the efficacy of the low-FODMAP diet and the gluten-free diet in abdominal bloating and distension is analyzed. Available evidence originates mainly from studies on patients with IBS, since clinical studies on selected cohorts of patients with only functional abdominal bloating and distension have been missing to date. Promising evidence on the potential efficacy of the low-FODMAP diet in functional abdominal bloating and distension is provided by the reduction of the bloating observed in patients with IBS. Regarding the gluten-free diet, there is insufficient evidence to recommend it to reduce bloating and abdominal distension. In conclusion, this review asserts the need for a close collaboration with experts in nutrition to optimize the management of these patients and reduce the risks associated with elimination diets.
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Affiliation(s)
- Tommaso Pessarelli
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Andrea Sorge
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Luca Elli
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Andrea Costantino
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
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9
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Rej A, Avery A, Aziz I, Black CJ, Bowyer RK, Buckle RL, Seamark L, Shaw CC, Thompson J, Trott N, Williams M, Sanders DS. Diet and irritable bowel syndrome: an update from a UK consensus meeting. BMC Med 2022; 20:287. [PMID: 36096789 PMCID: PMC9469508 DOI: 10.1186/s12916-022-02496-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/25/2022] [Indexed: 11/17/2022] Open
Abstract
There has been a renewed interest in the role of dietary therapies to manage irritable bowel syndrome (IBS), with diet high on the agenda for patients. Currently, interest has focussed on the use of traditional dietary advice (TDA), a gluten-free diet (GFD) and the low FODMAP diet (LFD). A consensus meeting was held to assess the role of these dietary therapies in IBS, in Sheffield, United Kingdom.Evidence for TDA is from case control studies and clinical experience. Randomised controlled trials (RCT) have demonstrated the benefit of soluble fibre in IBS. No studies have assessed TDA in comparison to a habitual or sham diet. There have been a number of RCTs demonstrating the efficacy of a GFD at short-term follow-up, with a lack of long-term outcomes. Whilst gluten may lead to symptom generation in IBS, other components of wheat may also play an important role, with recent interest in the role of fructans, wheat germ agglutinins, as well as alpha amylase trypsin inhibitors. There is good evidence for the use of a LFD at short-term follow-up, with emerging evidence demonstrating its efficacy at long-term follow-up. There is overlap between the LFD and GFD with IBS patients self-initiating gluten or wheat reduction as part of their LFD. Currently, there is a lack of evidence to suggest superiority of one diet over another, although TDA is more acceptable to patients.In view of this evidence, our consensus group recommends that dietary therapies for IBS should be offered by dietitians who first assess dietary triggers and then tailor the intervention according to patient choice. Given the lack of dietetic services, novel approaches such as employing group clinics and online webinars may maximise capacity and accessibility for patients. Further research is also required to assess the comparative efficacy of dietary therapies to other management strategies available to manage IBS.
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Affiliation(s)
- A Rej
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK.
| | - A Avery
- Division of Nutritional Sciences, School of Biosciences, University of Nottingham, Nottingham, UK
| | - I Aziz
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - C J Black
- Leeds Gastroenterology Institute, St James's University Hospital, Leeds, UK; Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - R K Bowyer
- Department of Nutrition and Dietetics, Royal United Hospitals NHS Foundation Trust, Bath, UK
| | - R L Buckle
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - L Seamark
- Specialist Gastroenterology Community Dietetic Service, Somerset Partnership NHS Foundation Trust, Bridgwater, UK
| | - C C Shaw
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - J Thompson
- Information Manager/Specialist Gastroenterology Dietitian, Guts UK Charity, 3 St Andrews Place, London, NW1 4LB, UK
| | - N Trott
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - M Williams
- Specialist Gastroenterology Community Dietetic Service, Somerset Partnership NHS Foundation Trust, Bridgwater, UK
| | - D S Sanders
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
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10
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Feng G, Han K, Yang Q, Feng W, Guo J, Wang J, Yang X. Interaction of Pyrogallol-Containing Polyphenols with Mucin Reinforces Intestinal Mucus Barrier Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9536-9546. [PMID: 35852590 DOI: 10.1021/acs.jafc.2c03564] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
High consumption of polyphenol-rich green tea, coffee, fruits, and vegetables is associated with a low risk of human chronic diseases. Recent studies highlight the relevance of polyphenol-mediated gut microbiota modulation and its impact on mucus barrier. Herein, we study the direct interaction of epicatechin (EC), epigallocatechin gallate (EGCG), and tannic acid (TA) with intestinal mucin by isothermal titration calorimetry and multiple particle tracking and the impact on mucus barrier using ex vivo mucus and Caco-2/HT29-MTX cocultures. Results show that pyrogallol-containing polyphenols EGCG and TA exhibit strong binding to intestinal mucin and reinforce mucus barrier, whereas EC does not. ECGG and TA also mitigate gliadin-mediated cytotoxicity and inflammation. The chemical binding of EGCG and TA to the nucleophilic thiol groups of mucins shows their roles as cross-linkers of mucin networks. These results bring a novel understanding of the health benefits of polyphenols and provide support for the consumption of pyrogallol-containing beverages like green tea as a potential dietary therapy for gluten-related disorders.
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Affiliation(s)
- Guangxin Feng
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Kaining Han
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Qian Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Weiting Feng
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Jian Guo
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Jinmei Wang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Xiaoquan Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
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11
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Carroccio A, Celano G, Cottone C, Di Sclafani G, Vannini L, D'Alcamo A, Vacca M, Calabrese FM, Mansueto P, Soresi M, Francavilla R, De Angelis M. WHOLE-meal ancient wheat-based diet: Effect on metabolic parameters and microbiota. Dig Liver Dis 2021; 53:1412-1421. [PMID: 34024731 DOI: 10.1016/j.dld.2021.04.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 04/05/2021] [Accepted: 04/19/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Ancient wheat varieties are considered to be healthier than modern ones, but the data are not univocal. We investigated changes in hematochemical parameters and evaluated microbiota data before and after a set period on a diet containing a whole-meal ancient wheat mix. PATIENTS AND METHODS 29 cloistered nuns were recruited. The study comprised two consecutive 30-day periods; during the first one (T1), the nuns received wheat-based foods produced with refined "modern" flour ("Simeto"); during the second one (T2) received wheat-based foods produced with an unrefined flour mix composed of "ancient" cultivars. At entry to the study (T0) and at the end of T1 and T2 hematochemical parameters and fecal microbiota and metabolome were evaluated. RESULTS At the end of T2, there was a significant reduction in serum iron, ferritin, creatinine, sodium, potassium, magnesium, total cholesterol, LDL- and HDL-cholesterol and folic acid. Furthermore, increased the abundance of cultivable enterococci, lactic acid bacteria and total anaerobes. The ability of the gut microbiome to metabolize carbohydrates increased after the period of diet containing ancient grain products. Several volatile organic compounds increased after the one month on the diet enriched with ancient grain products. CONCLUSIONS Our data showed the beneficial effects deriving from a diet including ancient whole-meal/unrefined wheat flours.
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Affiliation(s)
- Antonio Carroccio
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Via del Vespro, 141, Palermo 90100, Italy.
| | - Giuseppe Celano
- Department of Soil, Plant and Food Sciences, University "Aldo Moro" of Bari, Via G. Amendola, 165/A, Bari 70126, Italy
| | | | | | - Lucia Vannini
- Department of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna, Viale G. Fanin, 42, Bologna 40127, Italy
| | - Alberto D'Alcamo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Via del Vespro, 141, Palermo 90100, Italy
| | - Mirco Vacca
- Department of Soil, Plant and Food Sciences, University "Aldo Moro" of Bari, Via G. Amendola, 165/A, Bari 70126, Italy
| | - Francesco Maria Calabrese
- Department of Soil, Plant and Food Sciences, University "Aldo Moro" of Bari, Via G. Amendola, 165/A, Bari 70126, Italy
| | - Pasquale Mansueto
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Via del Vespro, 141, Palermo 90100, Italy
| | - Maurizio Soresi
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Via del Vespro, 141, Palermo 90100, Italy
| | - Ruggiero Francavilla
- Department of Biomedical Science and Human Oncology, University "Aldo Moro" of Bari, Piazza Giulio Cesare, 11, Bari 70124, Italy
| | - Maria De Angelis
- Department of Soil, Plant and Food Sciences, University "Aldo Moro" of Bari, Via G. Amendola, 165/A, Bari 70126, Italy
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12
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Feng G, Han K, Li Y, Yang Q, Feng W, Wang J, Yang X. Undigestible Gliadin Peptide Nanoparticles Penetrate Mucus and Reduce Mucus Production Driven by Intestinal Epithelial Cell Damage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7979-7989. [PMID: 34251199 DOI: 10.1021/acs.jafc.1c02177] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Wheat protein is the most consumed plant protein in our diet, and there is an increased prevalence of wheat/gluten intolerance and adherence to a gluten-free diet in many countries. Despite the known immunodominant effect of undigested gliadin peptides responsible for gluten-related intolerance, it remains unclear if and how gliadin peptides self-assemble into ordered nanostructures during gastrointestinal digestion, as well as their biological impact on the mucus barrier function. In this study, we purified undigestible gliadin peptide nanoparticles (UGPNs) by ultracentrifugation and characterized their structural and physiochemical properties. The results demonstrate that the UGPNs are self-assembled nanostructures generated by cationic amino acids (Lys and Arg)-capped surfactant-like peptides (SLPs), mainly derived from γ-gliadin and α-gliadin. SLPs trigger the concentration-dependent self-assembly driven by β-sheet conformational transitions above their critical aggregation concentration (cac, ∼0.1 mg/mL). UGPNs can easily penetrate the mucus layer in Caco-2/HT29-MTX cocultures with a high Papp value (∼5.7 × 10-6 cm/s) and reduce the production and thickness of the mucus layer driven by intestinal epithelial cell damage. Isothermal titration calorimetry and Langmuir monolayer studies indicate that the self-assembled state of UGPNs significantly affects their binding to DPPC/DOPE lipid membrane models. These results highlight the relevance of the self-assembly of gliadin peptides as a trigger of mucosal inflammation-related wheat/gluten intolerance.
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Affiliation(s)
- Guangxin Feng
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Kaining Han
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Yanlei Li
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Qian Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Weiting Feng
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Jinmei Wang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Xiaoquan Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
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13
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Vasant DH, Paine PA, Black CJ, Houghton LA, Everitt HA, Corsetti M, Agrawal A, Aziz I, Farmer AD, Eugenicos MP, Moss-Morris R, Yiannakou Y, Ford AC. British Society of Gastroenterology guidelines on the management of irritable bowel syndrome. Gut 2021; 70:1214-1240. [PMID: 33903147 DOI: 10.1136/gutjnl-2021-324598] [Citation(s) in RCA: 199] [Impact Index Per Article: 66.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/30/2021] [Accepted: 04/06/2021] [Indexed: 12/11/2022]
Abstract
Irritable bowel syndrome (IBS) remains one of the most common gastrointestinal disorders seen by clinicians in both primary and secondary care. Since publication of the last British Society of Gastroenterology (BSG) guideline in 2007, substantial advances have been made in understanding its complex pathophysiology, resulting in its re-classification as a disorder of gut-brain interaction, rather than a functional gastrointestinal disorder. Moreover, there has been a considerable amount of new evidence published concerning the diagnosis, investigation and management of IBS. The primary aim of this guideline, commissioned by the BSG, is to review and summarise the current evidence to inform and guide clinical practice, by providing a practical framework for evidence-based management of patients. One of the strengths of this guideline is that the recommendations for treatment are based on evidence derived from a comprehensive search of the medical literature, which was used to inform an update of a series of trial-based and network meta-analyses assessing the efficacy of dietary, pharmacological and psychological therapies in treating IBS. Specific recommendations have been made according to the Grading of Recommendations Assessment, Development and Evaluation system, summarising both the strength of the recommendations and the overall quality of evidence. Finally, this guideline identifies novel treatments that are in development, as well as highlighting areas of unmet need for future research.
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Affiliation(s)
- Dipesh H Vasant
- Neurogastroenterology Unit, Gastroenterology, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK.,Division of Diabetes, Endocrinology and Gastroenterology, University of Manchester, Manchester, UK
| | - Peter A Paine
- Division of Diabetes, Endocrinology and Gastroenterology, University of Manchester, Manchester, UK.,Gastroenterology, Salford Royal Foundation Trust, Salford, UK
| | - Christopher J Black
- Leeds Gastroenterology Institute, Leeds Teaching Hospitals NHS Trust, Leeds, UK.,Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - Lesley A Houghton
- Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK.,Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
| | - Hazel A Everitt
- Primary Care and Population Sciences, University of Southampton, Southampton, UK
| | - Maura Corsetti
- Nottingham Digestive Diseases Biomedical Research Unit, University of Nottingham, Nottingham, UK
| | - Anurag Agrawal
- Gastroenterology, Doncaster and Bassetlaw Hospitals NHS Trust, Armthorpe Road, Doncaster, UK
| | - Imran Aziz
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.,Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Adam D Farmer
- Department of Gastroenterology, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK.,School of Medicine, Keele University, Keele, UK
| | - Maria P Eugenicos
- Department of Gastroenterology, University of Edinburgh, Western General Hospital, Edinburgh, UK
| | - Rona Moss-Morris
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Yan Yiannakou
- Department of Gastroenterology, County Durham and Darlington NHS Foundation Trust, Durham, UK
| | - Alexander C Ford
- Leeds Gastroenterology Institute, Leeds Teaching Hospitals NHS Trust, Leeds, UK .,Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
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14
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Cárdenas-Torres FI, Cabrera-Chávez F, Figueroa-Salcido OG, Ontiveros N. Non-Celiac Gluten Sensitivity: An Update. ACTA ACUST UNITED AC 2021; 57:medicina57060526. [PMID: 34073654 PMCID: PMC8224613 DOI: 10.3390/medicina57060526] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/13/2021] [Accepted: 05/19/2021] [Indexed: 12/12/2022]
Abstract
Non-celiac gluten sensitivity (NCGS) is a clinical entity characterized by the absence of celiac disease and wheat allergy in patients that trigger reproducible symptomatic responses to gluten-containing foods consumption. Due to the lack of sensitive and reproducible biomarkers for NCGS diagnosis, placebo-controlled gluten challenges must be carried out for its diagnosis. The gluten challenges can be either double- or single-blind, for research or clinical practice purposes, respectively. For improving our understanding about the magnitude and relevance of NCGS in different populations, epidemiological studies based on self-report have been carried out. However, the gluten challenge-based prevalence of NCGS remains to be estimated. Since NCGS was recently recognized as a clinical entity, more studies are needed to delve into NCGS pathogenesis, for instance, the molecular interactions between the suspected cereal grain components that trigger NCGS, such as fermentable oligo-, di-, monosaccharides, and polyols (FODMAPs) and amylase and trypsin inhibitors, and the immune system remains to be elucidated. Although still under debate, NCGS patients can be susceptible to only one or more than one of the NCGS triggers. The treatment of NCGS involves the dietary restriction of the suspected triggers of the disease, but there is controversial data about the effectiveness of different dietary interventions such as the gluten-free diet and low-FODMAP diet. Certainly, our understanding of NCGS is improving quickly due to the constant availability of new scientific information on this topic. Thus, the aim of the present narrative review is to present an up-to-date overview on NCGS from epidemiology to current therapy.
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Affiliation(s)
- Feliznando Isidro Cárdenas-Torres
- Doctorate Program in Nutrition Science, Faculty of Nutrition Sciences, University of Sinaloa, Culiacán 80019, Mexico; (F.I.C.-T.); (F.C.-C.)
| | - Francisco Cabrera-Chávez
- Doctorate Program in Nutrition Science, Faculty of Nutrition Sciences, University of Sinaloa, Culiacán 80019, Mexico; (F.I.C.-T.); (F.C.-C.)
| | - Oscar Gerardo Figueroa-Salcido
- Postgraduate in Health Sciences, Division of Biological and Health Sciences, University of Sonora, Hermosillo 83000, Mexico
- Correspondence: (O.G.F.-S.); (N.O.)
| | - Noé Ontiveros
- Clinical and Research Laboratory (LACIUS, URS), Department of Chemical, Biological, and Agricultural Sciences (DC-QB), Division of Sciences and Engineering, University of Sonora, Navojoa 85880, Mexico
- Correspondence: (O.G.F.-S.); (N.O.)
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15
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Barbaro MR, Cremon C, Wrona D, Fuschi D, Marasco G, Stanghellini V, Barbara G. Non-Celiac Gluten Sensitivity in the Context of Functional Gastrointestinal Disorders. Nutrients 2020; 12:nu12123735. [PMID: 33291590 PMCID: PMC7761787 DOI: 10.3390/nu12123735] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 02/07/2023] Open
Abstract
Gluten-free diets are increasingly chosen in the Western world, even in the absence of a diagnosis of celiac disease. Around 10% of people worldwide self-report gluten-related complaints, including intestinal and extra-intestinal symptoms. In most cases, these subjects would be labeled as patients suffering from irritable bowel syndrome (IBS) who place themselves on a gluten-free diet even in the absence of celiac disease. In some instances, patients report a clear benefit by avoiding gluten from their diet and/or symptom worsening upon gluten reintroduction. This clinical entity has been termed non-celiac gluten sensitivity (NCGS). The symptoms referred by these patients are both intestinal and extra-intestinal, suggesting that similarly to functional gastrointestinal disorders, NCGS is a disorder of gut-brain interaction. It remains unclear if gluten is the only wheat component involved in NCGS. The mechanisms underlying symptom generation in NCGS remain to be fully clarified, although in the past few years, the research has significantly moved forward with new data linking NCGS to changes in gut motility, permeability and innate immunity. The diagnosis is largely based on the self-reported reaction to gluten by the patient, as there are no available biomarkers, and confirmatory double-blind challenge protocols are unfeasible in daily clinical practice. Some studies suggest that a small proportion of patients with IBS have an intolerance to gluten. However, the benefits of gluten-free or low-gluten diets in non-celiac disease-related conditions are limited, and the long-term consequences of this practice may include nutritional and gut microbiota unbalance. Here, we summarize the role of gluten in the clinical features, pathophysiology, and management of NCGS and disorders of gut-brain interaction.
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Affiliation(s)
- Maria Raffaella Barbaro
- IRCCS S. Orsola, 40138 Bologna, Italy; (M.R.B.); (C.C.); (D.W.); (D.F.); (G.M.); (V.S.)
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Cesare Cremon
- IRCCS S. Orsola, 40138 Bologna, Italy; (M.R.B.); (C.C.); (D.W.); (D.F.); (G.M.); (V.S.)
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Diana Wrona
- IRCCS S. Orsola, 40138 Bologna, Italy; (M.R.B.); (C.C.); (D.W.); (D.F.); (G.M.); (V.S.)
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Daniele Fuschi
- IRCCS S. Orsola, 40138 Bologna, Italy; (M.R.B.); (C.C.); (D.W.); (D.F.); (G.M.); (V.S.)
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Giovanni Marasco
- IRCCS S. Orsola, 40138 Bologna, Italy; (M.R.B.); (C.C.); (D.W.); (D.F.); (G.M.); (V.S.)
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Vincenzo Stanghellini
- IRCCS S. Orsola, 40138 Bologna, Italy; (M.R.B.); (C.C.); (D.W.); (D.F.); (G.M.); (V.S.)
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Giovanni Barbara
- IRCCS S. Orsola, 40138 Bologna, Italy; (M.R.B.); (C.C.); (D.W.); (D.F.); (G.M.); (V.S.)
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
- Correspondence: ; Tel.: +39-051-214-4103; Fax: +39-051-392-486
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16
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Rej A, Aziz I, Sanders DS. Coeliac disease and noncoeliac wheat or gluten sensitivity. J Intern Med 2020; 288:537-549. [PMID: 32573000 DOI: 10.1111/joim.13120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/15/2020] [Accepted: 04/21/2020] [Indexed: 12/15/2022]
Abstract
Coeliac disease (CD) and noncoeliac wheat or gluten sensitivity (NCWS/NCGS) are common gluten-related disorders. Both conditions can present with gastrointestinal and extraintestinal manifestations, which can be a challenge for physicians to discern between. Whilst coeliac serology and histological assessment are required for the diagnosis of CD, there are no clear biomarkers for the diagnosis of NCGS. The management of both conditions is with a gluten-free diet (GFD), although the duration, as well as strictness of adherence to a GFD in NCGS, is unclear. Adherence to a GFD in CD can also be challenging, with recent developments of noninvasive assessments, although histological assessment via duodenal biopsies remains the gold standard. The management of refractory coeliac disease remains particularly challenging, often requiring specialist input. Whilst wheat is noted to be a trigger for symptom generation in NCGS, it is unclear which components of wheat are responsible for symptom generation in this group, with further research required to elucidate the pathophysiology.
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Affiliation(s)
- A Rej
- From the, Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - I Aziz
- From the, Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK.,Department of Infection, Immunity and Cardiovascular Disease, Academic Unit of Gastroenterology, University of Sheffield, Sheffield, UK
| | - D S Sanders
- From the, Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK.,Department of Infection, Immunity and Cardiovascular Disease, Academic Unit of Gastroenterology, University of Sheffield, Sheffield, UK
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17
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Di Liberto D, Carlisi D, D’Anneo A, Emanuele S, Giuliano M, De Blasio A, Calvaruso G, Lauricella M. Gluten Free Diet for the Management of Non Celiac Diseases: The Two Sides of the Coin. Healthcare (Basel) 2020; 8:healthcare8040400. [PMID: 33066519 PMCID: PMC7712796 DOI: 10.3390/healthcare8040400] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 12/12/2022] Open
Abstract
A lifelong adherence to a gluten-free (GF) diet is currently the only treatment for Celiac disease (CD), an autoimmune disorder that arises after gluten ingestion in individuals who are genetically predisposed. The gluten intake exerts toxic effects through several pathways involving gut barrier integrity, intestinal microbiota composition and immune system stimulation. However, despite the great benefit of GF diet for CD patients, its use has been debated. Indeed, individuals who adopt this diet regime may be at risk of nutrient deficiencies. Emerging evidence supports a beneficial effect of a GF diet also for other pathological conditions, including gluten-related disorders (GRD) often associated to CD, such as Non celiac gluten sensitivity (NCGS) and Dermatitis Herpetiforme (DH) as well as Irritable bowel syndrome (IBS) and Diabetes. This suggests a pathogenic role of gluten in these conditions. Despite the growing popularity of GF diet among consumers, to date, there are limited evidences supporting its use for the management of non-celiac diseases. Therefore, in this review, we discuss whether the GF diet could really improve the general quality of life of patients with GRD and non-GRD conditions, keeping in mind its sensorial limitations and nutritional inadequacies. In addition, we discuss the current motivations, leading to the use of a GF diet, despite the inferior quality of GF products respect to those containing gluten.
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Affiliation(s)
- Diana Di Liberto
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), CLADIBIOR, University of Palermo, 90127 Palermo, Italy
- Correspondence: (D.D.L.); (A.D.); Tel.: +39-09123865854 (D.D.L.); +39-09123890650 (A.D.)
| | - Daniela Carlisi
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy; (D.C.); (S.E.); (M.L.)
| | - Antonella D’Anneo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (M.G.); (A.D.B.); (G.C.)
- Correspondence: (D.D.L.); (A.D.); Tel.: +39-09123865854 (D.D.L.); +39-09123890650 (A.D.)
| | - Sonia Emanuele
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy; (D.C.); (S.E.); (M.L.)
| | - Michela Giuliano
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (M.G.); (A.D.B.); (G.C.)
| | - Anna De Blasio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (M.G.); (A.D.B.); (G.C.)
| | - Giuseppe Calvaruso
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (M.G.); (A.D.B.); (G.C.)
| | - Marianna Lauricella
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy; (D.C.); (S.E.); (M.L.)
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18
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Di Liberto D, D’Anneo A, Carlisi D, Emanuele S, De Blasio A, Calvaruso G, Giuliano M, Lauricella M. Brain Opioid Activity and Oxidative Injury: Different Molecular Scenarios Connecting Celiac Disease and Autistic Spectrum Disorder. Brain Sci 2020; 10:E437. [PMID: 32659996 PMCID: PMC7407635 DOI: 10.3390/brainsci10070437] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 12/11/2022] Open
Abstract
Celiac Disease (CD) is an immune-mediated disease triggered by the ingestion of wheat gliadin and related prolamins from other cereals, such as barley and rye. Immunity against these cereal-derived proteins is mediated by pro-inflammatory cytokines produced by both innate and adaptive system response in individuals unable to adequately digest them. Peptides generated in this condition are absorbed across the gut barrier, which in these patients is characterized by the deregulation of its permeability. Here, we discuss a possible correlation between CD and Autistic Spectrum Disorder (ASD) pathogenesis. ASD can be induced by an excessive and inappropriate brain opioid activity during the neonatal period. Cereal-derived peptides produced in celiac patients cross the blood-brain barrier and bind to endogenous opioid receptors interfering with neurotransmission and generating deleterious effects on brain maturation, learning and social relations. Moreover, an increase in oxidative stress and a decrease in the antioxidant capacity, as well as an extended mitochondrial impairment in the brain, could represent a possible connection between ASD and CD. Therefore, we critically discuss the proposed relationship between ASD and CD and the possible usefulness of a gluten-free diet in ASD patients.
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Affiliation(s)
- Diana Di Liberto
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy;
| | - Antonella D’Anneo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (A.D.B.); (G.C.); (M.G.)
| | - Daniela Carlisi
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy; (D.C.); (S.E.)
| | - Sonia Emanuele
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy; (D.C.); (S.E.)
| | - Anna De Blasio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (A.D.B.); (G.C.); (M.G.)
| | - Giuseppe Calvaruso
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (A.D.B.); (G.C.); (M.G.)
| | - Michela Giuliano
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Laboratory of Biochemistry, University of Palermo, 90127 Palermo, Italy; (A.D.B.); (G.C.); (M.G.)
| | - Marianna Lauricella
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy; (D.C.); (S.E.)
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19
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Fernandez-Jimenez N, Bilbao JR. Mendelian randomization analysis of celiac GWAS reveals a blood expression signature with diagnostic potential in absence of gluten consumption. Hum Mol Genet 2020; 28:3037-3042. [PMID: 31127932 PMCID: PMC6737291 DOI: 10.1093/hmg/ddz113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/10/2019] [Accepted: 05/20/2019] [Indexed: 12/26/2022] Open
Abstract
Celiac disease (CeD) is an immune-mediated enteropathy with a strong genetic component where the main environmental trigger is dietary gluten, and currently a correct diagnosis of the disease is impossible if gluten-free diet (GFD) has already been started. We hypothesized that merging different levels of genomic information through Mendelian randomization (MR) could help discover genetic biomarkers useful for CeD diagnosis. MR was performed using public databases of expression quantitative trait loci (QTL) and methylation QTL as exposures and the largest CeD genome-wide association study conducted to date as the outcome, in order to identify potential causal genes. As a result, we identified UBE2L3, an ubiquitin ligase located in a CeD-associated region. We interrogated the expression of UBE2L3 in an independent data set of peripheral blood mononuclear cells (PBMCs) and found that its expression is altered in CeD patients on GFD when compared to non-celiac controls. The relative expression of UBE2L3 isoforms predicts CeD with 100% specificity and sensitivity and could be used as a diagnostic marker, especially in the absence of gluten consumption. This approach could be applicable to other diseases where diagnosis of asymptomatic patients can be complicated.
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Affiliation(s)
- Nora Fernandez-Jimenez
- University of the Basque Country (UPV/EHU), BioCruces-Bizkaia Health Research Institute, Leioa, Basque Country, Spain
| | - Jose Ramon Bilbao
- University of the Basque Country (UPV/EHU), BioCruces-Bizkaia Health Research Institute, Leioa, Basque Country, Spain.,Spanish Biomedical Research Center in Diabetes and Associated Metabolic Disorders (CIBERDEM) Madrid, Spain
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20
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Potter MDE, Jones MP, Walker MM, Koloski NA, Keely S, Holtmann G, Talley Ac NJ. Incidence and prevalence of self-reported non-coeliac wheat sensitivity and gluten avoidance in Australia. Med J Aust 2020; 212:126-131. [PMID: 31909482 DOI: 10.5694/mja2.50458] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 08/13/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVES To determine the incidence of self-reported non-coeliac wheat sensitivity (SR-NCWS) and factors associated with its onset and resolution; to describe the prevalence of factors associated with gluten avoidance. DESIGN Longitudinal cohort study; analysis of responses to self-administered validated questionnaires (Digestive Health and Wellbeing surveys, 2015 and 2018). SETTING, PARTICIPANTS Subset of an adult population sample randomly selected in 2015 from the electoral rolls for the Newcastle and Gosford regions of New South Wales. MAIN OUTCOME MEASURES Prevalence of SR-NCWS (2015, 2018) and incidence and resolution of SR-NCWS, each by demographic and medical factors; prevalence of gluten avoidance and reasons for gluten avoidance (2018). RESULTS 1322 of 2185 eligible participants completed the 2018 survey (response rate, 60.5%). The prevalence of SR-NCWS was similar in 2015 (13.8%; 95% CI, 12.0-15.8%) and 2018 (13.9%; 95% CI, 12.1-15.9%); 69 of 1301 respondents (5.3%) reported developing new onset (incident) SR-NCWS between 2015 and 2018 (incidence, 1.8% per year). Incident SR-NCWS was significantly associated with a diagnosis of functional dyspepsia, and negatively associated with being male or older. Gluten avoidance was reported in 2018 by 24.2% of respondents (20.5% partial, 3.8% complete avoidance); general health was the most frequent reason for avoidance (168 of 316 avoiders, 53%). All 13 participants with coeliac disease, 56 of 138 with irritable bowel syndrome (41%), and 69 of 237 with functional dyspepsia (29%) avoided dietary gluten. CONCLUSIONS The prevalence of SR-NCWS was similar in 2015 and 2018. Baseline (2015) and incident SR-NCWS (2018) were each associated with functional gastrointestinal disorders. The number of people avoiding dietary gluten exceeds that of people with coeliac disease or SR-NCWS, and general health considerations and abdominal symptoms are the most frequently reported reasons for avoidance.
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Affiliation(s)
- Michael DE Potter
- University of Newcastle, Newcastle, NSW.,John Hunter Hospital, Newcastle, NSW
| | | | | | - Natasha A Koloski
- University of Queensland, Brisbane, QLD.,Princess Alexandra Hospital, Brisbane, QLD
| | | | - Gerald Holtmann
- University of Queensland, Brisbane, QLD.,Princess Alexandra Hospital, Brisbane, QLD
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21
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Rej A, Aziz I, Tornblom H, Sanders DS, Simrén M. The role of diet in irritable bowel syndrome: implications for dietary advice. J Intern Med 2019; 286:490-502. [PMID: 31468640 DOI: 10.1111/joim.12966] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder that affects approximately 10% of the population. Diet triggers symptoms in the vast majority of individuals with IBS. In view of this, there has been a focus on the role of diet in IBS. The diets currently being headlined for IBS include (i) traditional dietary advice, (ii) the low fermentable oligo-, di-, mono- saccharides and polyols (FODMAPs) diet and (iii) the gluten-free diet (GFD). Although traditional dietary advice is considered as the first-line dietary therapy, its evidence base is variable, with a few randomized controlled trials (RCTs) exploring the efficacy of this approach, other than for fibre. There are now a growing number of RCTs demonstrating the efficacy of the low FODMAP diet in the short-term, with some emerging data on the long-term 'adapted' low FODMAP diet. There are also several RCTs showing the benefits of a GFD in IBS; however, this concept is hampered with uncertainty as to the mechanism of action. Nevertheless, all of these dietary therapies are viable options for individuals with IBS, with the dietitian and patient engagement at the forefront of achieving success. However, future pragmatic studies are needed to clarify the comparative efficacy and convenience of implementing these various diets into routine life. Moreover, it is imperative to better delineate the concern that restrictive diets - such as the low FODMAP and GFD - may promote nutritional inadequacies, disordered eating behaviours, and lead to detrimental alterations to the gut microbiota.
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Affiliation(s)
- A Rej
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - I Aziz
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
- Department of Infection, Immunity and Cardiovascular Disease, Academic Unit of Gastroenterology, University of Sheffield, Sheffield, UK
| | - H Tornblom
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - D S Sanders
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
- Department of Infection, Immunity and Cardiovascular Disease, Academic Unit of Gastroenterology, University of Sheffield, Sheffield, UK
| | - M Simrén
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Center for Functional Gastrointestinal and Motility Disorders, University of North Carolina, Chapel Hill, NC, USA
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22
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Figueroa-Salcido OG, Ontiveros N, Cabrera-Chavez F. Gluten Vehicle and Placebo for Non-Celiac Gluten Sensitivity Assessment. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E117. [PMID: 31035487 PMCID: PMC6572297 DOI: 10.3390/medicina55050117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/20/2019] [Accepted: 04/23/2019] [Indexed: 12/13/2022]
Abstract
Non-celiac gluten sensitivity (NCGS) is a syndrome characterized by gastrointestinal and extraintestinal manifestations triggered after gluten ingestion in the absence of celiac disease and wheat allergy. Because of the lack of biomarkers for NCGS diagnosis, the cornerstone for its assessment is a single- or double-blind placebo-controlled (DBPC) gluten challenge. However, there are some non-standardized points in the diagnostic approach proposed by the experts. This complicate comparisons among the results published by different research groups. The gluten vehicle and placebo must be indistinguishable from each other, which entails sensory and technological evaluations of the designed gluten vehicle and placebo products. At the moment, there is no standardized method for the preparation of the gluten vehicle and placebo for carrying out DBPC gluten challenges for NCGS assessment. This review focuses on the challenges that researchers have to face, either for the development of an accepted gluten vehicle and placebo or for identifying NCGS cases on the basis of DBPC gluten challenges.
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Affiliation(s)
- Oscar Gerardo Figueroa-Salcido
- Nutrition Sciences Academic Unit, Autonomous University of Sinaloa, Cedros y Calle Sauces S/N, Fraccionamiento Los Fresnos, Culiacán 80019, Sinaloa, Mexico.
| | - Noé Ontiveros
- Division of Sciences and Engineering, Department of Chemical, Biological, and Agricultural Sciences (DC-QB), University of Sonora, Navojoa 85880, Sonora, Mexico.
| | - Francisco Cabrera-Chavez
- Nutrition Sciences Academic Unit, Autonomous University of Sinaloa, Cedros y Calle Sauces S/N, Fraccionamiento Los Fresnos, Culiacán 80019, Sinaloa, Mexico.
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23
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Scherf KA. Immunoreactive cereal proteins in wheat allergy, non-celiac gluten/wheat sensitivity (NCGS) and celiac disease. Curr Opin Food Sci 2019. [DOI: 10.1016/j.cofs.2019.02.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Gibiino G, Lopetuso L, Ricci R, Gasbarrini A, Cammarota G. Coeliac disease under a microscope: Histological diagnostic features and confounding factors. Comput Biol Med 2018; 104:335-338. [PMID: 30409469 DOI: 10.1016/j.compbiomed.2018.10.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 02/07/2023]
Abstract
Coeliac disease (CD) and gluten-related disorders represent an important cornerstone of the daily practice of gastroenterologists, endoscopists and dedicated histopathologists. Despite the knowledge of clinical, serological and histological typical lesions, there are some conditions to consider for differential diagnosis. From the first description of histology of CD, several studies were conducted to define similar findings suggestive for microscopic enteritis. Considering the establishment of early precursor lesions, the imbalance of gut microbiota is another point still requiring a detailed definition. This review assesses the importance of a right overview in case of suspected gluten-related disorders and the several conditions mimicking a similar histology.
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Affiliation(s)
- Giulia Gibiino
- Internal Medicine and, Gastroenterology and Hepatic Diseases Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Loris Lopetuso
- Internal Medicine and, Gastroenterology and Hepatic Diseases Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Riccardo Ricci
- Institute of Pathology, IRCCS Fondazione Policlinico Universitario A. Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Antonio Gasbarrini
- Internal Medicine and, Gastroenterology and Hepatic Diseases Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giovanni Cammarota
- Internal Medicine and, Gastroenterology and Hepatic Diseases Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
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