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Knez E, Kadac-Czapska K, Grembecka M. The importance of food quality, gut motility, and microbiome in SIBO development and treatment. Nutrition 2024; 124:112464. [PMID: 38657418 DOI: 10.1016/j.nut.2024.112464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 03/18/2024] [Accepted: 04/04/2024] [Indexed: 04/26/2024]
Abstract
The prevalence of small intestinal bacterial overgrowth (SIBO) is rising worldwide, particularly in nations with high rates of urbanization. Irritable bowel syndrome, inflammatory bowel illnesses, and nonspecific dysmotility are strongly linked to SIBO. Moreover, repeated antibiotic therapy promotes microorganisms' overgrowth through the development of antibiotic resistance. The primary cause of excessive fermentation in the small intestine is a malfunctioning gastrointestinal motor complex, which results in the gut's longer retention of food residues. There are anatomical and physiological factors affecting the functioning of the myoelectric motor complex. Except for them, diet conditions the activity of gastrointestinal transit. Indisputably, the Western type of nutrition is unfavorable. Some food components have greater importance in the functioning of the gastrointestinal motor complex than others. Tryptophan, an essential amino acid and precursor of the serotonin hormone, accelerates intestinal transit, and gastric emptying, similarly to fiber and polyphenols. Additionally, the effect of food on the microbiome is important, and diet should prevent bacterial overgrowth and exhibit antimicrobial effects against pathogens. Therefore, knowledge about proper nutrition is essential to prevent the development and recurrence of SIBO. Since the scientific world was unsure whether there was a long-term or potential solution for SIBO until quite recently, research on a number of the topics included in the article should be performed. The article aimed to summarize current knowledge about proper nutrition after SIBO eradication and the prevention of recurrent bacterial overgrowth. Moreover, a connection was found between diet, gut dysmotility, and SIBO.
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Affiliation(s)
- Eliza Knez
- Department of Bromatology, Medical University of Gdańsk, Gdańsk, Poland
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2
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Alcedo González J, Estremera-Arévalo F, Cobián Malaver J, Santos Vicente J, Alcalá-González LG, Naves J, Barba Orozco E, Barber Caselles C, Serrano-Falcón B, Accarino Garaventa A, Alonso-Cotoner C, Serra Pueyo J. Common questions and rationale answers about the intestinal bacterial overgrowth syndrome (SIBO). GASTROENTEROLOGIA Y HEPATOLOGIA 2024:502216. [PMID: 38852778 DOI: 10.1016/j.gastrohep.2024.502216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/15/2024] [Accepted: 05/24/2024] [Indexed: 06/11/2024]
Affiliation(s)
- Javier Alcedo González
- Servicio de Aparato Digestivo, Hospital Universitario Miguel Servet, Instituto de Investigación Sanitaria (IIS) Aragón, Zaragoza, España.
| | - Fermín Estremera-Arévalo
- Servicio de Aparato Digestivo, Hospital Universitario de Navarra, Navarrabiomed, Universidad Pública de Navarra - IdiSNA, Navarra, España
| | | | - Javier Santos Vicente
- Laboratorio de Neuro-Inmuno-Gastroenterología, Unidad de Investigación de Aparato Digestivo, Institut de Recerca (VHIR), Servicio de Aparato Digestivo, Hospital Universitario Vall d'Hebron, Barcelona, España; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Instituto de Salud Carlos III, Madrid, España
| | | | - Juan Naves
- Servicio de Aparato Digestivo, Hospital del Mar, Barcelona, España
| | - Elizabeth Barba Orozco
- Unidad de Neurogastroenterología y Motilidad, Hospital Clínic de Barcelona, Barcelona, España; Departamento de Gastroenterología, Universidad de Barcelona, Barcelona, España
| | | | - Blanca Serrano-Falcón
- Servicio de Aparato Digestivo, Hospital Universitario Virgen de las Nieves, Granada, España
| | | | - Carmen Alonso-Cotoner
- Laboratorio de Neuro-Inmuno-Gastroenterología, Unidad de Investigación de Aparato Digestivo, Institut de Recerca (VHIR), Servicio de Aparato Digestivo, Hospital Universitario Vall d'Hebron, Barcelona, España; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Instituto de Salud Carlos III, Madrid, España; Facultad de Medicina, Universidad Autónoma de Barcelona, Barcelona, España
| | - Jordi Serra Pueyo
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Instituto de Salud Carlos III, Madrid, España; Área de Aparato Digestivo, Hospital Universitario Vall d'Hebron, Barcelona, España
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3
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Kashyap P, Moayyedi P, Quigley EMM, Simren M, Vanner S. Critical appraisal of the SIBO hypothesis and breath testing: A clinical practice update endorsed by the European society of neurogastroenterology and motility (ESNM) and the American neurogastroenterology and motility society (ANMS). Neurogastroenterol Motil 2024; 36:e14817. [PMID: 38798120 DOI: 10.1111/nmo.14817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND There is compelling evidence that microbe-host interactions in the intestinal tract underlie many human disorders, including disorders of gut-brain interactions (previously termed functional bowel disorders), such as irritable bowel syndrome (IBS). Small intestinal bacterial overgrowth (SIBO) has been recognized for over a century in patients with predisposing conditions causing intestinal stasis, such as surgical alteration of the small bowel or chronic diseases, including scleroderma and is associated with diarrhea and signs of malabsorption. Over 20 years ago, it was hypothesized that increased numbers of small intestine bacteria might also account for symptoms in the absence of malabsorption in IBS and related disorders. This SIBO-IBS hypothesis stimulated significant research and helped focus the profession's attention on the importance of microbe-host interactions as a potential pathophysiological mechanism in IBS. PURPOSE However, after two decades, this hypothesis remains unproven. Moreover, it has led to serious unintended consequences, namely the widespread use of unreliable and unvalidated breath tests as a diagnostic test for SIBO and a resultant injudicious use of antibiotics. In this review, we examine why the SIBO hypothesis remains unproven and, given the unintended consequences, discuss why it is time to reject this hypothesis and its reliance on breath testing. We also examine recent IBS studies of bacterial communities in the GI tract, their composition and functions, and their interactions with the host. While these studies provide important insights to guide future research, they highlight the need for further mechanistic studies of microbe-host interactions in IBS patients before we can understand their possible role in diagnosis and treatment of patient with IBS and related disorders.
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Affiliation(s)
- Purna Kashyap
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Paul Moayyedi
- Farncombe Institute, McMaster University, Hamilton, Ontario, Canada
| | - Eamonn M M Quigley
- Lynda K and David M Underwood Center for Digestive Disorders, Houston Methodist Hospital and Weill Cornell Medical College, Houston, Texas, USA
| | | | - Stephen Vanner
- GI Diseases Research Unit, Queen's University, Kingston, Ontario, Canada
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4
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Kaniecki T, Hughes M, McMahan Z. Managing gastrointestinal manifestations in systemic sclerosis, a mechanistic approach. Expert Rev Clin Immunol 2024; 20:603-622. [PMID: 38406978 PMCID: PMC11098704 DOI: 10.1080/1744666x.2024.2320205] [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: 10/31/2023] [Accepted: 02/14/2024] [Indexed: 02/27/2024]
Abstract
INTRODUCTION Systemic sclerosis (SSc) is a connective tissue disease with heterogeneous presentation. Gastrointestinal (GI) complications of SSc are characterized by esophageal reflux, abnormal motility, and microbiome dysbiosis, which impact patient quality of life and mortality. Preventative therapeutics are lacking, with management primarily aimed at symptomatic control. AREAS COVERED A broad literature review was conducted through electronic databases and references from key articles. We summarize the physiology of gastric acid production and GI motility to provide context for existing therapies, detail the current understanding of SSc-GI disease, and review GI medications studied in SSc. Finally, we explore new therapeutic options. We propose a management strategy that integrates data on drug efficacy with knowledge of disease pathophysiology, aiming to optimize future therapeutic targets. EXPERT OPINION SSc-GI complications remain a challenge for patients, clinicians, and investigators alike. Management presently focuses on treating symptoms and minimizing mucosal damage. Little evidence exists to suggest immunosuppressive therapy halts progression of GI involvement or reverses damage, leaving many unanswered questions about the optimal clinical approach. Further research focused on identifying patients at risk for GI progression, and the underlying mechanism(s) that drive disease will provide opportunities to prevent long-term damage, and significantly improve patient quality of life.
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Affiliation(s)
- Timothy Kaniecki
- Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Michael Hughes
- Department of Rheumatology, Northern Care Alliance NHS Foundation Trust, Salford Care Organisation, Salford, US
- Division of Musculoskeletal and Dermatological Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Zsuzsanna McMahan
- Division of Rheumatology, UTHealth Houston McGovern Medical School, Houston, TX
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5
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Roszkowska P, Klimczak E, Ostrycharz E, Rączka A, Wojciechowska-Koszko I, Dybus A, Cheng YH, Yu YH, Mazgaj S, Hukowska-Szematowicz B. Small Intestinal Bacterial Overgrowth (SIBO) and Twelve Groups of Related Diseases-Current State of Knowledge. Biomedicines 2024; 12:1030. [PMID: 38790992 PMCID: PMC11117733 DOI: 10.3390/biomedicines12051030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
The human gut microbiota creates a complex microbial ecosystem, characterized by its high population density, wide diversity, and complex interactions. Any imbalance of the intestinal microbiome, whether qualitative or quantitative, may have serious consequences for human health, including small intestinal bacterial overgrowth (SIBO). SIBO is defined as an increase in the number of bacteria (103-105 CFU/mL), an alteration in the bacterial composition, or both in the small intestine. The PubMed, Science Direct, Web of Science, EMBASE, and Medline databases were searched for studies on SIBO and related diseases. These diseases were divided into 12 groups: (1) gastrointestinal disorders; (2) autoimmune disease; (3) cardiovascular system disease; (4) metabolic disease; (5) endocrine disorders; (6) nephrological disorders; (7) dermatological diseases; (8) neurological diseases (9); developmental disorders; (10) mental disorders; (11) genetic diseases; and (12) gastrointestinal cancer. The purpose of this comprehensive review is to present the current state of knowledge on the relationships between SIBO and these 12 disease groups, taking into account risk factors and the causal context. This review fills the evidence gap on SIBO and presents a biological-medical approach to the problem, clearly showing the groups and diseases having a proven relationship with SIBO, as well as indicating groups within which research should continue to be expanded.
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Affiliation(s)
- Paulina Roszkowska
- Department of Diagnostic Immunology, Pomeranian Medical University, st. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (P.R.); (I.W.-K.)
| | - Emilia Klimczak
- Institute of Biology, University of Szczecin, st. Z. Felczaka 3c, 71-412 Szczecin, Poland; (E.K.); (E.O.); (S.M.)
| | - Ewa Ostrycharz
- Institute of Biology, University of Szczecin, st. Z. Felczaka 3c, 71-412 Szczecin, Poland; (E.K.); (E.O.); (S.M.)
- Doctoral School, University of Szczecin, st. A. Mickiewicz 16, 71-412 Szczecin, Poland
- Molecular Biology and Biotechnology Center, University of Szczecin, st. Wąska 13, 71-412 Szczecin, Poland
| | - Aleksandra Rączka
- Department of Genetics, West Pomeranian University of Technology, st. Aleja Piastów 45, 70-311 Szczecin, Poland; (A.R.); (A.D.)
| | - Iwona Wojciechowska-Koszko
- Department of Diagnostic Immunology, Pomeranian Medical University, st. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (P.R.); (I.W.-K.)
| | - Andrzej Dybus
- Department of Genetics, West Pomeranian University of Technology, st. Aleja Piastów 45, 70-311 Szczecin, Poland; (A.R.); (A.D.)
| | - Yeong-Hsiang Cheng
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (Y.-H.C.); (Y.-H.Y.)
| | - Yu-Hsiang Yu
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (Y.-H.C.); (Y.-H.Y.)
| | - Szymon Mazgaj
- Institute of Biology, University of Szczecin, st. Z. Felczaka 3c, 71-412 Szczecin, Poland; (E.K.); (E.O.); (S.M.)
| | - Beata Hukowska-Szematowicz
- Institute of Biology, University of Szczecin, st. Z. Felczaka 3c, 71-412 Szczecin, Poland; (E.K.); (E.O.); (S.M.)
- Molecular Biology and Biotechnology Center, University of Szczecin, st. Wąska 13, 71-412 Szczecin, Poland
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Foeldvari I, Torok KS, Antón J, Blakley M, Constantin T, Cutolo M, Denton CP, Fligelstone K, Hinrichs B, Li SC, Maillard S, Marrani E, Moinzadeh P, Orteu CH, Pain CE, Pauling JD, Pilkington C, Rosser F, Smith V, Furst DF. Best clinical practice in the treatment of juvenile systemic sclerosis: expert panel guidance - the result of the International Hamburg Consensus Meeting December 2022. Expert Rev Clin Immunol 2024; 20:387-404. [PMID: 38149621 DOI: 10.1080/1744666x.2023.2298354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/19/2023] [Indexed: 12/28/2023]
Abstract
INTRODUCTION Juvenile systemic sclerosis (jSSc) is an orphan disease with a prevalence of 3 in 1,000,000 children. Currently there is only one consensus treatment guideline concerning skin, pulmonary and vascular involvement for jSSc, the jSSc SHARE (Single Hub and Access point for pediatric Rheumatology in Europe) initiative, which was based on data procured up to 2014. Therefore, an update of these guidelines, with a more recent literature and expert experience, and extension of the guidance to more aspects of the disease is needed. AREAS COVERED Treatment options were reviewed, and opinions were provided for most facets of jSSc including general management, some of which differs from adult systemic sclerosis, such as the use of corticosteroids, and specific organ involvement, such as skin, musculoskeletal, pulmonary, and gastroenterology. EXPERT OPINION We are suggesting the treat to target strategy to treat early to prevent cumulative disease damage in jSSc. Conclusions are derived from both expert opinion and available literature, which is mostly based on adult systemic sclerosis (aSSc), given shared pathophysiology, extrapolation of results from aSSc studies was judged reasonable.
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Affiliation(s)
- Ivan Foeldvari
- Hamburg Centre for Pediatric and Adolescent Rheumatology, Schön Klinik Hamburg Eilbek, Hamburg, Germany
| | - Kathryn S Torok
- University of Pittsburgh and University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Jordi Antón
- Department of Pediatric Rheumatology. Hospital Sant Joan de Déu and Universitat de Barcelona, Barcelona, Spain
| | - Michael Blakley
- Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tamás Constantin
- Unit of Pediatric Rheumatology, Tűzoltó Street Department, Pediatric Centre, Semmelweis University, Budapest, Hungary
| | - Maurizio Cutolo
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology-Department of Internal Medicine and Specialties, University of Genoa and IRCCS San Martino Polyclinic Hospital, Genoa, Italy
| | | | - Kim Fligelstone
- Scleroderma & Raynaud's United Kindgom (SRUK) (Research Subcommittee, Patient Research Partner), FESCA, London, UK
| | - Bernd Hinrichs
- Children's pulmonology, Asklepios Klinik Nord - Heidberg, Hamburg, Germany
| | - Suzanne C Li
- Hackensack University Medical Center, Hackensack, NJ, USA
| | | | - Edoardo Marrani
- Pediatric Rheumatology Unit, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Pia Moinzadeh
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
| | - Catherine H Orteu
- UCL Institute of Immunity and Transplantation, Royal Free London NHS Foundation Trust, London, UK
| | - Clare E Pain
- Alder Hey Children's Foundation NHS Trust, Liverpool, UK
| | - John D Pauling
- Department of Internal Medicine, Ghent University, Ghent, Belgium
- Department of Rheumatology, Ghent University Hospital, Ghent, Belgium
- Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center (IRC), Ghent, Belgium and ERN ReCONNET
| | | | - Franziska Rosser
- University of Pittsburgh and University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Vanessa Smith
- University of California, Los Angeles, CA, USA
- University of Washington, Seattle, WA, USA
- University of Florence, Florence, Italy
| | - Daniel F Furst
- Division of Rheumatology Fellow, Geffen School of Medicine at the University of California in Los Angeles, Los Angeles, CA, USA
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7
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Zeng L, Yang K, He Q, Zhu X, Long Z, Wu Y, Chen J, Li Y, Zeng J, Cui G, Xiang W, Hao W, Sun L. Efficacy and safety of gut microbiota-based therapies in autoimmune and rheumatic diseases: a systematic review and meta-analysis of 80 randomized controlled trials. BMC Med 2024; 22:110. [PMID: 38475833 DOI: 10.1186/s12916-024-03303-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 02/13/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Previous randomized controlled trials (RCTs) suggested that gut microbiota-based therapies may be effective in treating autoimmune diseases, but a systematic summary is lacking. METHODS Pubmed, EMbase, Sinomed, and other databases were searched for RCTs related to the treatment of autoimmune diseases with probiotics from inception to June 2022. RevMan 5.4 software was used for meta-analysis after 2 investigators independently screened literature, extracted data, and assessed the risk of bias of included studies. RESULTS A total of 80 RCTs and 14 types of autoimmune disease [celiac sprue, SLE, and lupus nephritis (LN), RA, juvenile idiopathic arthritis (JIA), spondyloarthritis, psoriasis, fibromyalgia syndrome, MS, systemic sclerosis, type 1 diabetes mellitus (T1DM), oral lichen planus (OLP), Crohn's disease, ulcerative colitis] were included. The results showed that gut microbiota-based therapies may improve the symptoms and/or inflammatory factor of celiac sprue, SLE and LN, JIA, psoriasis, PSS, MS, systemic sclerosis, Crohn's disease, and ulcerative colitis. However, gut microbiota-based therapies may not improve the symptoms and/or inflammatory factor of spondyloarthritis and RA. Gut microbiota-based therapies may relieve the pain of fibromyalgia syndrome, but the effect on fibromyalgia impact questionnaire score is not significant. Gut microbiota-based therapies may improve HbA1c in T1DM, but its effect on total insulin requirement does not seem to be significant. These RCTs showed that probiotics did not increase the incidence of adverse events. CONCLUSIONS Gut microbiota-based therapies may improve several autoimmune diseases (celiac sprue, SLE and LN, JIA, psoriasis, fibromyalgia syndrome, PSS, MS, T1DM, Crohn's disease, and ulcerative colitis).
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Affiliation(s)
- Liuting Zeng
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Graduate School of Peking Union Medical College, Nanjing, China.
| | - Kailin Yang
- Hunan University of Chinese Medicine, Changsha, China
| | - Qi He
- People's Hospital of Ningxiang City, Ningxiang, China
| | | | - Zhiyong Long
- Department of Rehabilitation Medicine, Guangzhou Panyu Central Hospital, Guangzhou, China
| | - Yang Wu
- Department of Rheumatology, National Clinical Research Center for Dermatologic and Immunologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | | | - Yuwei Li
- Hunan University of Science and Technology, Xiangtan, China
| | - Jinsong Zeng
- Department of Rheumatology, National Clinical Research Center for Dermatologic and Immunologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Ge Cui
- Department of Epidemiology and Statistics, School of Public Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Wang Xiang
- Department of Rheumatology, The First People's Hospital Changde City, Changde, China
| | - Wensa Hao
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lingyun Sun
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Graduate School of Peking Union Medical College, Nanjing, China.
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
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8
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Renaud A, Jirka A, Durant C, Connault J, Espitia O, Takoudju C, Agard C. [Gastrointestinal tract involvement in systemic sclerosis]. Rev Med Interne 2023; 44:410-422. [PMID: 37270380 DOI: 10.1016/j.revmed.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 04/17/2023] [Accepted: 05/08/2023] [Indexed: 06/05/2023]
Abstract
Gastrointestinal tract involvement in systemic sclerosis concerns more than 90% of patients but is of heterogeneous clinical expression. It can involve the entire intestinal tract and be responsible for multifactorial malnutrition, which is frequent in this disease. It is a major source of deterioration in the quality of life and can even be life-threatening. Management is complex and multidisciplinary, ranging from simple hygienic and dietary measures, to specialized endoscopic or surgical interventional procedures, also including medical treatments, particularly proton pump inhibitors and prokinetics, with potential side effects. Ongoing research for new diagnostic and therapeutic tools promises to improve the management and prognosis of these patients.
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Affiliation(s)
- A Renaud
- Service de médecine interne, Nantes université, CHU de Nantes, 1, place Alexis-Ricordeau, 44000 Nantes, France.
| | - A Jirka
- Service d'hépato-gastro-entérologie, Nantes université, CHU de Nantes, 44000 Nantes, France
| | - C Durant
- Service de médecine interne, Nantes université, CHU de Nantes, 1, place Alexis-Ricordeau, 44000 Nantes, France
| | - J Connault
- Service de médecine interne, Nantes université, CHU de Nantes, 1, place Alexis-Ricordeau, 44000 Nantes, France
| | - O Espitia
- Service de médecine interne, Nantes université, CHU de Nantes, 1, place Alexis-Ricordeau, 44000 Nantes, France
| | - C Takoudju
- Service d'hépato-gastro-entérologie, Nantes université, CHU de Nantes, 44000 Nantes, France
| | - C Agard
- Service de médecine interne, Nantes université, CHU de Nantes, 1, place Alexis-Ricordeau, 44000 Nantes, France
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9
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Maslennikov R, Alieva A, Poluektova E, Zharikov Y, Suslov A, Letyagina Y, Vasileva E, Levshina A, Kozlov E, Ivashkin V. Sarcopenia in cirrhosis: Prospects for therapy targeted to gut microbiota. World J Gastroenterol 2023; 29:4236-4251. [PMID: 37545638 PMCID: PMC10401661 DOI: 10.3748/wjg.v29.i27.4236] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/25/2023] [Accepted: 06/21/2023] [Indexed: 07/13/2023] Open
Abstract
Decreased muscle mass and function, also known as sarcopenia, is common in patients with cirrhosis and is associated with a poor prognosis. Although the pathogenesis of this disorder has not been fully elucidated, a disordered gut-muscle axis probably plays an important role. Decreased barrier function of the gut and liver, gut dysbiosis, and small intestinal bacterial overgrowth (SIBO) can lead to increased blood levels of ammonia, lipopolysaccharides, pro-inflammatory mediators, and myostatin. These factors have complex negative effects on muscle mass and function. Drug interventions that target the gut microbiota (long-term use of rifaximin, lactulose, lactitol, or probiotics) positively affect most links of the compromised gut-muscle axis in patients with cirrhosis by decreasing the levels of hyperammonemia, bacterial translocation, and systemic inflammation and correcting gut dysbiosis and SIBO. However, although these drugs are promising, they have not yet been investigated in randomized controlled trials specifically for the treatment and prevention of sarcopenia in patients with cirrhosis. No data exist on the effects of fecal transplantation on most links of gut-muscle axis in cirrhosis; however, the results of animal experimental studies are promising.
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Affiliation(s)
- Roman Maslennikov
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119435, Russia
- The Scientific Community for Human Microbiome Research, Moscow 119435, Russia
| | - Aliya Alieva
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119435, Russia
| | - Elena Poluektova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119435, Russia
- The Scientific Community for Human Microbiome Research, Moscow 119435, Russia
| | - Yury Zharikov
- Department of Human Anatomy and Histology, Sechenov University, Moscow 119435, Russia
| | - Andrey Suslov
- Department of Human Anatomy and Histology, Sechenov University, Moscow 119435, Russia
| | - Yana Letyagina
- Department of Human Anatomy and Histology, Sechenov University, Moscow 119435, Russia
| | - Ekaterina Vasileva
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119435, Russia
| | - Anna Levshina
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119435, Russia
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov University, Moscow 119991, Russia
| | - Evgenii Kozlov
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov University, Moscow 119991, Russia
| | - Vladimir Ivashkin
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119435, Russia
- The Scientific Community for Human Microbiome Research, Moscow 119435, Russia
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10
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Quinlivan A, McMahan ZH, Lee EB, Nikpour M. Gastrointestinal Tract Considerations: Part II: How Should a Rheumatologist Best Manage Common Lower Gastrointestinal Tract Complaints in Systemic Sclerosis? Rheum Dis Clin North Am 2023; 49:319-336. [PMID: 37028837 DOI: 10.1016/j.rdc.2023.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
Lower gastrointestinal (GI) symptoms are a frequently encountered problem for clinicians managing patients with systemic sclerosis. The current management practices are focused on the treatment of symptoms with little information available on how to use GI investigations in daily practice. This review demonstrates how to integrate the objective assessment of common lower GI symptoms into clinical care with the aim of guiding clinical decision making. Understanding the type of abnormal GI function that is affecting a patient and determining which parts of the gut are impacted can help clinicians to target therapy more precisely.
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Affiliation(s)
- Alannah Quinlivan
- Department of Rheumatology, St Vincent's Hospital, 41 Victoria Parade, Fitzroy, Victoria, 3065, Australia; Department of Medicine, The University of Melbourne at St Vincent's Hospital, 41 Victoria Parade, Fitzroy, Victoria 3065, Australia
| | - Zsuzsanna H McMahan
- Division of Rheumatology, Johns Hopkins University, 5200 Eastern Avenue, Suite 5200, Mason F. Lord Building, Center Tower, Baltimore, MD 21224, USA
| | - Eun Bong Lee
- Division of Rheumatology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Mandana Nikpour
- Department of Rheumatology, St Vincent's Hospital, 41 Victoria Parade, Fitzroy, Victoria, 3065, Australia; Department of Medicine, The University of Melbourne at St Vincent's Hospital, 41 Victoria Parade, Fitzroy, Victoria 3065, Australia.
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11
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Paradoxical Reactions to Anti-TNFα and Anti-IL-17 Treatment in Psoriasis Patients: Are Skin and/or Gut Microbiota Involved? Dermatol Ther (Heidelb) 2023; 13:911-933. [PMID: 36929119 DOI: 10.1007/s13555-023-00904-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/14/2023] [Indexed: 03/18/2023] Open
Abstract
Psoriasis is a chronic, immune-mediated, inflammatory disease primarily affecting the skin. It is currently coming to light that patients with psoriasis have disrupted intestinal barrier and often suffer from comorbidities associated with the gastrointestinal tract. Moreover, there is growing evidence of both cutaneous and intestinal paradoxical reactions during biologic treatment in patients with psoriasis. This review focuses on barrier defects and changes in immune responses in patients with psoriasis, which play an important role in the development of the disease but are also influenced by modern biological treatments targeting IL-17 and TNFα cytokines. Here, we highlight the relationship between the gut-skin axis, microbiota, psoriasis treatment, and the incidence of paradoxical reactions, such as inflammatory bowel disease in patients with psoriasis. A better understanding of the interconnection of these mechanisms could lead to a more personalized therapy and lower the incidence of treatment side effects, thereby improving the quality of life of the affected patients.
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12
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Bustos Fernández LM, Man F, Lasa JS. Impact of Saccharomyces boulardii CNCM I-745 on Bacterial Overgrowth and Composition of Intestinal Microbiota in Diarrhea-Predominant Irritable Bowel Syndrome Patients: Results of a Randomized Pilot Study. Dig Dis 2023; 41:798-809. [PMID: 36630947 DOI: 10.1159/000528954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/27/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Small intestinal bacterial overgrowth (SIBO) is associated with diarrhea-predominant irritable bowel syndrome (IBS-D). Probiotics like Saccharomyces boulardii CNCM I-745 (Sb) may be efficacious in balancing the microbiota. This randomized open label study assessed the effect of Sb in patients with bacterial overgrowth associated with IBS-D and its impact on the intestinal microbiota. METHODS Patients were randomized to receive Sb + dietary advice (Sb + DA) or dietary advice (DA) only for 15 days. SIBO was assessed by the lactulose hydrogen breath test (LHBT). Symptoms were assessed with the IBS Symptom Severity Scale (IBS-SSS) and stool consistency with the Bristol Stool Form Scale. Microbiota and mycobiota were analyzed by 16S rDNA and ITS2. RESULTS 54 patients were included, among whom 48 (27 Sb + DA, 21 DA) were evaluated. Decrease of hydrogen excretion was slightly higher in Sb + DA group, 41% versus 29% in DA group, and IBS-SSS total score were reduced by -134 and -93, respectively. The proportion of patients with diarrhea was lower in the Sb + DA group than in the DA group (25.9% compared to 47.6%). Bacterial and fungal microbiota showed that Sb treatment was associated with several modifications. Interestingly, F. prausnitzii was more abundant in Sb-treated patients with marked clinical improvement. The safety of S. boulardii CNCM I-745 was excellent. CONCLUSIONS In patients with SIBO, S. boulardii CNCM I-745 associated with dietary advice reduced bacterial overgrowth and improved digestive symptoms while restoring the intestinal microbiota. The increased abundance of F. prausnitzii coupled with symptom improvement merits further research.
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Affiliation(s)
| | | | - Juan Sebastián Lasa
- Gastroenterology Department, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC), Buenos Aires, Argentina
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13
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Stoll ML. Therapeutic alteration of the microbiota in rheumatic diseases: Hype or potential? Best Pract Res Clin Rheumatol 2022; 36:101806. [PMID: 36564273 DOI: 10.1016/j.berh.2022.101806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Multiple studies have demonstrated abnormalities in the contents of the fecal microbiota in patients with a variety of forms of arthritis. This has prompted interest in microbial-altering therapy as a therapeutic tool. While antibiotics as a long-term therapeutic tool have largely fallen out of favor, there have been multiple studies evaluating probiotics in rheumatoid arthritis, spondyloarthritis, or systemic sclerosis; a small number of studies have tested fecal microbial transplantation (FMT) in rheumatic diseases. Although probiotics were well tolerated, few studies detected meaningful clinical benefit regardless of indication. Likewise, one of the two randomized studies evaluating FMT showed minimal clinical benefit, while the other demonstrated worsening compared to sham treatment. In this review article, I summarize the literature on probiotics and FMT in rheumatic diseases, discuss potential reasons for the absence of demonstrable benefit, and suggest avenues of future direction of research.
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Affiliation(s)
- Matthew L Stoll
- University of Alabama at Birmingham, 1600 7th Avenue South, Children's Park Place Suite G10, Birmingham, AL 35233 UK.
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14
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Kim S, Park HJ, Lee SI. The Microbiome in Systemic Sclerosis: Pathophysiology and Therapeutic Potential. Int J Mol Sci 2022; 23:ijms232416154. [PMID: 36555792 PMCID: PMC9853331 DOI: 10.3390/ijms232416154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/06/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Systemic sclerosis (SSc), also known as scleroderma, is an autoimmune disease with unknown etiology characterized by multi-organ fibrosis. Despite substantial investigation on SSc-related cellular and molecular mechanisms, effective therapies are still lacking. The skin, lungs, and gut are the most affected organs in SSc, which act as physical barriers and constantly communicate with colonized microbiota. Recent reports have documented a unique microbiome signature, which may be the pathogenic trigger or driver of SSc. Since gut microbiota influences the efficacy and toxicity of oral drugs, evaluating drug-microbiota interactions has become an area of interest in disease treatment. The existing evidence highlights the potential of the microbial challenge as a novel therapeutic option in SSc. In this review, we have summarized the current knowledge about molecular mechanisms of SSc and highlighted the underlying role of the microbiome in SSc pathogenesis. We have also discussed the latest therapeutic interventions using microbiomes in SSc, including drug-microbiota interactions and animal disease models. This review aims to elucidate the pathophysiological connection and therapeutic potential of the microbiome in SSc. Insights into the microbiome will significantly improve our understanding of etiopathogenesis and developing therapeutics for SSc.
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15
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Skrzydło-Radomańska B, Cukrowska B. How to Recognize and Treat Small Intestinal Bacterial Overgrowth? J Clin Med 2022; 11:6017. [PMID: 36294338 PMCID: PMC9604644 DOI: 10.3390/jcm11206017] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/08/2022] [Accepted: 10/10/2022] [Indexed: 07/30/2023] Open
Abstract
Small Intestinal Bacterial Overgrowth (SIBO) is a form of dysbiosis that involves increased bacterial colonization of the small intestine with some of the bacteria more characteristic of the colon microbiota. The prevalence of SIBO over recent decades has been estimated to range from 2.5 to 22% (depending on the source) and to increase with age and among individuals with comorbidities. Recently, an increase in the number of diagnosed SIBO cases has been observed, which is primarily due to the availability of noninvasive breath tests that facilitate the diagnostic process. However, SIBO is still both a diagnostic and a therapeutic problem. This review presents the pathophysiology, manifestations, diagnostics, and recommended management of SIBO.
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Affiliation(s)
| | - Bożena Cukrowska
- Department of Pathomorphology, The Children Memorial Health Institute, Aleja Dzieci Polskich 20, 04-730 Warsaw, Poland
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16
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Fiorentini E, Russo E, Amedei A, Bellando Randone S. Fecal microbiome in systemic sclerosis, in search for the best candidate for microbiota-targeted therapy for small intestinal bacterial overgrowth control. JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2022; 7:163-167. [PMID: 36211209 PMCID: PMC9537701 DOI: 10.1177/23971983221118871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 07/10/2022] [Indexed: 10/03/2023]
Abstract
Gastrointestinal involvement is a common complication in systemic sclerosis patients and must be suspected and investigated already in the early stages of the disease. Gastrointestinal symptoms and complications-such as gastroesophageal reflux disease, intestinal pseudo-obstruction, malnutrition, diarrhea, constipation, and small intestinal bacterial overgrowth-severely impair systemic sclerosis patients' quality of life and affect their prognosis. Although some pathogenetic aspects of the gastrointestinal involvement in systemic sclerosis remain unclear, defining the characteristics of the microbiota and its role could help in risk stratification, selection of candidates for microbiota-targeted therapies, prediction of standard treatment efficacy, and prognosis of systemic sclerosis patients. Finally, understanding how to modify the microbiota composition may represent an important therapeutic approach to target gastrointestinal involvement in systemic sclerosis.
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Affiliation(s)
- Elisa Fiorentini
- Rheumatology Unit, Azienda Ospedaliero
Universitaria Careggi, Florence, Italy
| | - Edda Russo
- Department of Clinical and Experimental
Medicine, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Amedeo Amedei
- Department of Clinical and Experimental
Medicine, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
- SOD of Interdisciplinary Internal Medicine,
Azienda Ospedaliero Universitaria Careggi, Florence, Italy
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17
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The Relationship between Gastrointestinal Health, Micronutrient Concentrations, and Autoimmunity: A Focus on the Thyroid. Nutrients 2022; 14:nu14173572. [PMID: 36079838 PMCID: PMC9460308 DOI: 10.3390/nu14173572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
Currently, there is a lack of understanding of why many patients with thyroid dysfunction remain symptomatic despite being biochemically euthyroid. Gastrointestinal (GI) health is imperative for absorption of thyroid-specific nutrients as well as thyroid function directly. This comprehensive narrative review describes the impact of what the authors have conceptualized as the “nutrient–GI–thyroid axis”. Compelling evidence reveals how gastrointestinal health could be seen as the epicenter of thyroid-related care given that: (1) GI conditions can lower thyroid-specific nutrients; (2) GI care can improve status of thyroid-specific nutrients; (3) GI conditions are at least 45 times more common than hypothyroidism; (4) GI care can resolve symptoms thought to be from thyroid dysfunction; and (5) GI health can affect thyroid autoimmunity. A new appreciation for GI health could be the missing link to better nutrient status, thyroid status, and clinical care for those with thyroid dysfunction.
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18
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Wielgosz-Grochowska JP, Domanski N, Drywień ME. Efficacy of an Irritable Bowel Syndrome Diet in the Treatment of Small Intestinal Bacterial Overgrowth: A Narrative Review. Nutrients 2022; 14:nu14163382. [PMID: 36014888 PMCID: PMC9412469 DOI: 10.3390/nu14163382] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022] Open
Abstract
Small intestinal bacterial overgrowth (SIBO) is highly prevalent in irritable bowel syndrome (IBS). The eradication of bacterial overgrowth with antibiotics is the first-line treatment. However, focusing only on the antimicrobial effects without taking care to improve lifestyle factors, especially dietary patterns, may predispose patients to intestinal microbiota dysfunction. The objective of this study is to determine whether the current recommendations regarding nutrition in IBS are suitable for patients with SIBO. A narrative literature review was carried out using databases, including PubMed, ScienceDirect and Google Scholar. Recent studies indicate that dietary manipulation may have a role in alleviating SIBO gastrointestinal symptoms. A low FODMAP diet proposed for IBS may promote a negative shift in the gut microbiota and deepen the existing state of dysbiosis in SIBO patients. Supplementation with soluble fiber can lessen the symptoms in IBS and SIBO. Targeted probiotic therapy may also increase the effectiveness of antibiotic treatment and regulate bowel movements. Therefore, optimal dietary patterns play a key role in the treatment of SIBO. Based on currently available literature, the potential efficacy of the IBS diet in SIBO is largely hypothetical. Future research is needed to characterize a specific diet for the treatment of SIBO.
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Affiliation(s)
- Justyna Paulina Wielgosz-Grochowska
- Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
- Correspondence:
| | - Nicole Domanski
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Małgorzata Ewa Drywień
- Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
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19
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Cheah JX, Khanna D, McMahan ZH. Management of scleroderma gastrointestinal disease: Lights and shadows. JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2022; 7:85-97. [PMID: 35585948 PMCID: PMC9109510 DOI: 10.1177/23971983221086343] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Gastrointestinal symptoms affect the great majority of patients with systemic sclerosis. Management of these complications is often challenging as any region of the gastrointestinal tract may be involved, and significant heterogeneity exists in clinical presentation, kinetics, and outcomes. Here, we highlight new findings relevant to the management of systemic sclerosis-related gastrointestinal disease (lights) and consider areas that we have yet to elucidate (shadows).
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Affiliation(s)
- Jenice X Cheah
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Dinesh Khanna
- Division of Rheumatology, University of Michigan, Ann Arbor, MI, USA
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20
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Namjoshi SS, Galloway D, Herdes RE, Talathi S, Ding VY, Mezoff EA. Bacterial overgrowth assessment and treatment among pediatric intestinal rehabilitation & nutrition support providers: an international survey of clinical practice patterns. JPEN J Parenter Enteral Nutr 2022; 46:1914-1922. [PMID: 35274342 DOI: 10.1002/jpen.2369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 02/15/2022] [Accepted: 03/06/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Small bowel bacterial overgrowth (SBBO) is a common, but difficult to diagnose and treat problem in pediatric short bowel syndrome (SBS). Lack of clinical consensus criteria and unknown sensitivity and specificity of bedside diagnosis makes research on this potential SBS disease modifier challenging. The objective of this research was to describe clinical care of SBBO among international intestinal rehabilitation and nutrition support (IR&NS) providers treating patients with SBS. METHODS & MATERIALS A secure, confidential, international, electronic survey of IR&NS practitioners was conducted between March 2021 and May 2021. All analyses were conducted in the R statistical computing framework ™, version 4.0 RESULTS: 60% of respondents agreed and 0% strongly disagreed that abdominal pain, distension, emesis, diarrhea, and malodorous stool, were attributable to SBBO. No more than 20% of respondents strongly agreed and no more than 40% agreed that any sign or symptom was specific for SBBO. For a first-time diagnosis, 31 practitioners agreed with use of a 7-day course of a single antibiotic, with a majority citing Grade 5 evidence to inform their decisions (case series, uncontrolled studies, or expert opinion). The most common first antibiotic used to treat a new onset SBBO was metronidazole, and rifaximin was the 2nd most commonly used. 100% of respondents reported they would consider a consensus algorithm for SBBO, even if the algorithm may be divergent from their current practice. CONCLUSION SBBO practice varies widely among experienced IR&NS providers. Development of a clinical consensus algorithm may help standardize care to improve research and care of this complex problem and to identify risks and benefits of chronic antibiotic use in SBS. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Shweta S Namjoshi
- Stanford University School of Medicine & the Lucile Packard Children's Hospital, Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition
| | - David Galloway
- University of Alabama at Birmingham, Center for Advanced Intestinal Rehabilitation, Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition
| | - Rachel E Herdes
- Stanford University School of Medicine & the Lucile Packard Children's Hospital, Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition
| | - Saurabh Talathi
- University of Oklahoma College of Medicine, Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition
| | - Victoria Y Ding
- Stanford University School of Medicine, Department of Medicine, Department of Biomedical Informatics Research
| | - Ethan A Mezoff
- The Ohio State University College of Medicine, Center for Intestinal Rehabilitation and Nutrition Support, Division of Gastroenterology, Hepatology & Nutrition at Nationwide Children's Hospital
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21
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Lemos MPC, Zucoloto TG, Oliveira MC, de Oliveira GLV. Dysbiosis and Gut Microbiota Modulation in Systemic Sclerosis. J Clin Rheumatol 2022; 28:e568-e573. [PMID: 34030162 DOI: 10.1097/rhu.0000000000001748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Gastrointestinal (GI) involvement is an early manifestation in systemic sclerosis (SSc), affecting more than 90% of patients, and severe GI disease is a marker of poor prognosis and mortality. Recent studies have hypothesized that alterations of the intestinal microbiota, known as dysbiosis, may represent 1 of the possible environmental factors influencing SSc disease status. In addition, specific microorganisms may be associated with SSc pathogenesis, progression, and GI manifestations. Therapeutic approaches aiming to modulate the intestinal microbiota have emerged, as alternatives to treat GI symptoms, and dietary interventions, probiotic administration, and fecal microbiota transplantation are potential therapies for SSc patients. However, given the complexity and variability of pathogenesis and clinical manifestations in SSc, these therapies need to be combined with additional interventions that target other disease components. Here, we summarize studies addressing intestinal dysbiosis in SSc and discuss the potential of microbiota modulators to treat SSc-related GI disorders.
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22
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Rosato E, Gigante A, Pellicano C, Villa A, Iannazzo F, Alunni Fegatelli D, Muscaritoli M. Symptoms related to gastrointestinal tract involvement and low muscularity in systemic sclerosis. Clin Rheumatol 2022; 41:1687-1696. [PMID: 35149929 PMCID: PMC9119878 DOI: 10.1007/s10067-022-06059-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/21/2021] [Accepted: 01/09/2022] [Indexed: 11/03/2022]
Abstract
INTRODUCTION/OBJECTIVES Gastrointestinal tract (GIT) involvement is frequently observed in systemic sclerosis (SSc) and may lead to nutritional impairment. The aim of the study was to assess the prevalence of symptoms related to GIT involvement and to analyze the possible association between gastrointestinal symptoms and low muscularity in SSc patients. METHODS Sixty-nine consecutive patients (60 females, median age 53 (IQR 43-63), body mass index (BMI) 23.2 (IQR 20.9-24.6) kg/m2) with diagnosis of SSc admitted to our Scleroderma Unit were enrolled. Clinical status, anthropometric data, and bioelectrical impedance (Inbody 770, USA) analysis-assessed Fat-Free Mass Index (FFMI) were recorded upon enrollment. UCLA questionnaire was used to quantify GIT involvement with seven specific scales. RESULTS Mean FFMI was 16.2 kg/m2 (IQR 15.2-17.6). The median UCLA total score was 0.53 (IQR 0.19-0.89). FFMI showed a significant negative correlation with UCLA total score (r = -0.29, p = 0.016) and UCLA distention/bloating (r = -0.35, p < 0.01). In 16 patients (23.1%), FFMI was reduced and UCLA distention/bloating was significantly higher (p = 0.039) in SSc patients with lower FFMI [1.75 (IQR 0.75-2.12) vs 0.75 (IQR 0.25-1.75)]. At multiple linear regression model, FFMI showed association with UCLA distention/bloating [beta coefficient - 0.315 (95% CI of beta coefficient: -0.591; -0.039), p = 0.026], BMI [beta coefficient 0.259 (95% CI of beta coefficient: 0.163; 0.355), p = 0.001], and disease duration [beta coefficient - 0.033 (95% CI of beta coefficient: -0.059; -0.007), p = 0.015]. CONCLUSIONS In SSc, low FFMI is associated with symptoms related to GIT involvement, in particular with distension/bloating. Key Points • FFMI is associated with symptoms related to GIT involvement. • Low FFMI is associated with symptoms related to UCLA distention/bloating. • Malnutrition is not associated with symptoms related to GIT involvement.
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Affiliation(s)
- Edoardo Rosato
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Viale dell' Università 37, 00185, Rome, Italy
| | - Antonietta Gigante
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Viale dell' Università 37, 00185, Rome, Italy
| | - Chiara Pellicano
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Viale dell' Università 37, 00185, Rome, Italy
| | - Annalisa Villa
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Viale dell' Università 37, 00185, Rome, Italy
| | - Francesco Iannazzo
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Viale dell' Università 37, 00185, Rome, Italy
| | - Danilo Alunni Fegatelli
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
| | - Maurizio Muscaritoli
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Viale dell' Università 37, 00185, Rome, Italy.
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23
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Thoreau B, Chaigne B, Renaud A, Mouthon L. Treatment of systemic sclerosis. Presse Med 2021; 50:104088. [PMID: 34718109 DOI: 10.1016/j.lpm.2021.104088] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 12/29/2022] Open
Abstract
Systemic sclerosis (SSc) is a rare connective tissue disease characterized by skin and visceral fibrosis, vascular hyperreactivity and obliterative vasculopathy. Some of its complications such as interstitial lung disease (ILD), pulmonary arterial hypertension (PAH) and heart involvement can be life-threatening and are associated with a high mortality and a poor prognosis. Many clinical trials were carried out in order to improve the survival and prognosis of SSc patients. The management of SSc is based on the frequent and regular assessment of the potential organ damage, and if present, the establishment of graduated pharmacological therapeutic strategies, associated with non-pharmacological procedures. Several randomized clinical trials have showed significant positive outcomes regarding some specific involvements. Many advances have been made, especially in the field of targeted therapies and personalized medicine, based on specific characteristics of the patient and the SSc.
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Affiliation(s)
- Benjamin Thoreau
- Institut Cochin, INSERM U1016, CNRS UMR 8104, Université de Paris; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Benjamin Chaigne
- Institut Cochin, INSERM U1016, CNRS UMR 8104, Université de Paris; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Arthur Renaud
- Institut Cochin, INSERM U1016, CNRS UMR 8104, Université de Paris; Service de Médecine Interne, Centre de Compétence Maladies Systémiques Autoimmunes Rares, CHU de Nantes, Nantes, France
| | - Luc Mouthon
- Institut Cochin, INSERM U1016, CNRS UMR 8104, Université de Paris; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.
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24
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Luquez-Mindiola A, Atuesta AJ, Gómez-Aldana AJ. Gastrointestinal manifestations of systemic sclerosis: An updated review. World J Clin Cases 2021; 9:6201-6217. [PMID: 34434988 PMCID: PMC8362561 DOI: 10.12998/wjcc.v9.i22.6201] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/30/2021] [Accepted: 06/07/2021] [Indexed: 02/06/2023] Open
Abstract
Systemic sclerosis is an autoimmune disease characterized by vascular disease, fibrosis of the skin, and internal organ dysfunction. Gastrointestinal involvement is the most frequent complication of internal organs, impacting up to 90% of patients. Gastrointestinal involvement can affect any region of the gastrointestinal tract from the mouth to the anus, with a predominance of disorders being observed at the level of the upper digestive tract. The gastrointestinal involvement primarily involves the esophagus, small bowel, and rectum. The severity of gastrointestinal involvement affects quality of life and is a marker of worse prognosis and mortality in these patients. In this review, we describe the current findings regarding gastrointestinal involvement by this entity.
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Affiliation(s)
| | - Alexis Javier Atuesta
- Department of Internal Medicine, Universidad Nacional de Colombia, Bogota 11711, Colombia
| | - Andres Jose Gómez-Aldana
- Department of Endoscopy, Santa Fe Foundation of Bogotá (Fundación Santa Fe de Bogotá), Bogotá 11711, Colombia
- Faculty of Medicine, Universidad de los Andes, Bogota 11711, Colombia
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25
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Abstract
Abstract
Systemic sclerosis (SSc) is a rare autoimmune disease characterized by widespread microvasculopathy, inflammation, and fibrosis of the skin and internal organs. The involvement of the gastrointestinal tract is associated with a wide variety of symptoms and affects circa 90% of patients during the course of the disease. The gastrointestinal microbiota contains trillions of microbial cells and has been found to contribute to both local and systemic homeostasis. In both health and disease, a dynamic interrelationship between gut microbiome activity and the host immune system has been identified. Gastrointestinal dysbiosis has been described as having an important role in obesity, diabetes mellitus, liver disease, cardiovascular and neuropsychiatric disorders, neoplasia, as well as autoimmunity. Recent scientific data indicates a notable role of dysbiosis in the pathogenesis of SSc-related digestive involvement together with various other clinical manifestations. The present review aims to summarize the recent findings regarding digestive dysbiosis as well as the relationship between gastrointestinal microbiota and certain features of SSc.
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26
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Kaniecki T, Abdi T, McMahan ZH. A practical approach to the evaluation and management of gastrointestinal symptoms in patients with systemic sclerosis. Best Pract Res Clin Rheumatol 2021; 35:101666. [PMID: 33676855 DOI: 10.1016/j.berh.2021.101666] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The gastrointestinal (GI) tract is the most commonly affected internal organ system in systemic sclerosis (SSc). SSc may lead to impaired function in any region of the GI tract, from the esophagus to the anorectum, which causes significant morbidity as well as mortality in patient subsets. Given the low prevalence of SSc in the community, many rheumatologists may not have a systematic framework for diagnosing or treating the GI complaints in this disease. These practice recommendations aim to summarize and consolidate the current guidelines from the fields of gastroenterology and rheumatology and establish a symptom-based framework for diagnosis and management based on available evidence in the literature. Subject areas that are in need of additional research are also identified.
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Affiliation(s)
- Timothy Kaniecki
- The Johns Hopkins Hospital, Department of Internal Medicine, USA
| | - Tsion Abdi
- Johns Hopkins University, Division of Gastroenterology, USA
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Feng X, Li XQ, Jiang Z. Prevalence and predictors of small intestinal bacterial overgrowth in systemic sclerosis: a systematic review and meta-analysis. Clin Rheumatol 2021; 40:3039-3051. [PMID: 33426631 DOI: 10.1007/s10067-020-05549-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 12/08/2020] [Accepted: 12/13/2020] [Indexed: 12/11/2022]
Abstract
The reported prevalence of small intestinal bacterial overgrowth (SIBO) among patients with systemic sclerosis (SSc) is highly variable. We conducted this systematic review and meta-analysis to estimate the prevalence and identify predictors of SIBO in SSc by summarizing all of the available data. A comprehensive literature search of the PubMed, Cochrane Library, and EMBASE databases from inception to July 2020 was conducted for studies correlating SIBO with SSc. Studies were screened, and relevant data were extracted and analyzed. The pooled prevalence of SIBO among SSc patients and the odds ratio (OR) of SIBO among SSc patients compared with healthy controls were calculated. Furthermore, predictors of SIBO in SSc were evaluated. Fourteen studies containing 700 SSc patients and 217 healthy controls met the inclusion criteria. The pooled prevalence of SIBO in SSc was 34% (95% CI 27-42%). The OR of SIBO in SSc patients was 12.51 (95% CI 6.51-24.03) compared with the healthy controls. Subgroup analyses showed that the prevalence of SIBO in SSc was higher in studies using the lactulose hydrogen breath test (LHBT) for diagnosis (56%, 95% CI 46-67%) compared with those that used the glucose hydrogen breath test (GHBT) (27%, 95%CI 20-35%) and a jejunal aspirated culture (JAC) (35%, 95%CI 25-51%). The prevalence of SIBO in SSc was higher in studies conducted in Western countries (38%, 95% CI 31-47%) than those conducted in Asian countries (15%, 95%CI 10-23%), and the prevalence of SIBO in the SSc population defined by ACR-EULAR 2013 (50%, 95% CI 0.21-0.79) was higher than the prevalence defined by ACR 1980 (30%, 95% CI 0.17-0.42) or other criteria (32%, 95% CI 0.16-0.48) Moreover, the risk of diarrhea was higher in SSc patients with SIBO than those without SIBO (OR 8.82, 95% CI 4.09-19, P < 0.00001); gender, SSc subset, digital ulcer, and pulmonary fibrosis do not seem to be associated with SIBO in SSc. Antibiotic therapy seems to be effective with SIBO in SSc patients. Approximately one-third of SSc patients tested positive for SIBO with a significantly increased risk over the controls. The prevalence of SIBO in SSc varied according to the SIBO diagnostic test performed, geographic area, and SSc diagnostic criteria. The presence of diarrhea may be a predictor of SIBO in SSc. Antibiotic treatment can lead to eradication of SIBO and gastrointestinal symptomatic improvement in SSc patients. Key Points • The pooled prevalence of SIBO in SSc patients was 34%, which varied according to the SIBO diagnostic test performed, geographic area and SSc diagnostic criteria. • The risk of SIBO in SSc was increased by nearly thirteenfold compared to the healthy controls. • Diarrhoea, but not gender, SSc subset, digital ulcer and pulmonary fibrosis, was associated with SIBO in SSc patients. • For SSc patients with SIBO, antibiotic treatment can lead to eradication of SIBO and gastrointestinal symptomatic improvement.
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Affiliation(s)
- Xin Feng
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Xiao-Qing Li
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zheng Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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McMahan ZH, Khanna D. Managing gastrointestinal complications in patients with systemic sclerosis. ACTA ACUST UNITED AC 2020; 18:531-544. [PMID: 34305387 DOI: 10.1007/s11938-020-00314-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Objective We sought to critically evaluate the literature published over the past 3 years on the management of gastrointestinal complications in systemic sclerosis (SSc). We emphasize interesting and important new findings to bring the reader up-to-date. We also discuss controversial discoveries and hypotheses currently of interest. Methods We conducted a literature search on PubMed over the last 3 years using the key words "systemic sclerosis," "gastrointestinal," "scleroderma," and "treatment." We also screened clinicaltrials.gov for ongoing trials relevant to the gastrointestinal complications of SSc. Reference lists from recent reviews on the management of gastrointestinal complications of SSc to identify articles that might have been missed in the initial search. Results 103 publications and ongoing clinical trials were identified. We eliminated all case reports and review articles. Ultimately we had 58 articles remaining and we prioritized what we found to be the strongest and/or novel findings to discuss in this review. Conclusions Advances in the management of gastrointestinal disease in SSc continue to evolve. The application of novel therapies and the repurposing of existing therapies for the management of gastrointestinal involvement are shaping the therapeutic arsenal so that we can more effectively manage these complex patients.
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Affiliation(s)
- Z H McMahan
- Johns Hopkins University, Division of Rheumatology, Baltimore, MD, USA
| | - D Khanna
- University of Michigan, Division of Rheumatology, Ann Arbor, MI, USA
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McMahan ZH, Volkmann ER. An update on the pharmacotherapeutic options and treatment strategies for systemic sclerosis. Expert Opin Pharmacother 2020; 21:2041-2056. [PMID: 32674612 PMCID: PMC7913471 DOI: 10.1080/14656566.2020.1793960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Systemic sclerosis (SSc) is a multi-dimensional connective tissue disease of unknown etiology. Given the immense clinical complexity of SSc, the treatment of this condition is not standardized and considerable heterogeneity exists in SSc management approaches. The purpose of this article is to highlight novel therapeutic strategies and new medications under development for the treatment of systemic sclerosis (SSc). AREAS COVERED Herein, the authors focus primarily on recently completed clinical trials and phase 3 and 4 clinical trials of therapeutic agents that show promise in SSc. This review is organized by the clinical complications that occur in SSc, for which novel treatment strategies are under study. EXPERT OPINION Combining therapies to address the individual manifestations of SSc is a cornerstone to the comprehensive management of this condition. Therapeutic strategies must take into account the organs involved, the level of disease activity in each area, and the disease stage. Controlling the complex biological network, progressive vasculopathy and fibrosis, as well as manifestations of end-organ dysfunction are all critical considerations when determining the best treatment approach for SSc.
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MESH Headings
- Autoantibodies/blood
- Clinical Trials as Topic
- Cyclophosphamide/administration & dosage
- Cyclophosphamide/therapeutic use
- Drugs, Investigational/administration & dosage
- Drugs, Investigational/therapeutic use
- Humans
- Lung Diseases, Interstitial/complications
- Lung Diseases, Interstitial/drug therapy
- Lung Diseases, Interstitial/immunology
- Mycophenolic Acid/administration & dosage
- Mycophenolic Acid/therapeutic use
- Pyridones/administration & dosage
- Pyridones/therapeutic use
- Rituximab/administration & dosage
- Rituximab/therapeutic use
- Scleroderma, Diffuse/complications
- Scleroderma, Diffuse/drug therapy
- Scleroderma, Diffuse/immunology
- Scleroderma, Systemic/complications
- Scleroderma, Systemic/drug therapy
- Scleroderma, Systemic/immunology
- Treatment Outcome
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Nickles MA, Hasan A, Shakhbazova A, Wright S, Chambers CJ, Sivamani RK. Alternative Treatment Approaches to Small Intestinal Bacterial Overgrowth: A Systematic Review. J Altern Complement Med 2020; 27:108-119. [PMID: 33074705 DOI: 10.1089/acm.2020.0275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: Broad-spectrum antibiotics are the first-line treatment for small intestinal bacterial overgrowth (SIBO). However, many antibiotics have a considerable side-effect profile and SIBO commonly reoccurs after successful eradication with antibiotics. Alternative therapies such as probiotics, therapeutic diets, and herbal medicines have been used to individualize SIBO management, particularly in recalcitrant cases. Objectives: The objective of this review is to evaluate the role of alternative therapies in SIBO treatment. Data Sources: EMBASE, MEDLINE, and the Cochrane Central Register were systematically searched for clinical studies evaluating alternative therapies in the management of SIBO. Study Eligibility Criteria: Human studies in which an alternative intervention was used to treat SIBO were included. Alternative interventions were defined as an intervention that included a probiotic supplement, herbal preparation, or a dietary change. Randomized controlled trials (RCTs), nonrandomized clinical trials with or without a control, and crossover studies were included. Study Appraisal: The following information was extracted from the selected studies: study type, study participants, SIBO subtype, intervention, comparison, outcome measures, relevant results, relevant side effects, and Jadad score. Results: Eight studies met inclusion criteria. The studies evaluated probiotics (n = 5), therapeutic diet (n = 1), and herbal medicines (n = 2). Among these studies, there were four RCTs, two open-label single-arm studies, one randomized, double-blind crossover study, and one two-arm open-label study with crossover. Main results are summarized. Limitations: There may be studies not captured by the defined search criteria. Additionally, studies used different methodologies in both breath testing and measurement of clinical symptoms, making it difficult to draw conclusions on SIBO eradication and symptom improvement across studies. Conclusions and Implications: Our findings suggest preliminary evidence for a role of alternative therapies in the treatment of SIBO. However, robust clinical trials are generally lacking. Existing studies tend to be small and lack standardized formulations of treatment. Breath testing protocols and clinical symptom measurement greatly varied between studies. Large-scale, randomized, placebo-controlled trials are needed to further evaluate the best way to utilize alternative therapies in the treatment of SIBO.
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Affiliation(s)
- Melissa A Nickles
- College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Aliza Hasan
- Department of Dermatology, University of California-Davis, Sacramento, CA, USA
| | | | | | - Cynthia J Chambers
- College of Medicine, California Northstate University, Elk Grove, CA, USA.,Pacific Skin Institute, Sacramento, CA, USA.,Zen Dermatology, Sacramento, CA, USA
| | - Raja K Sivamani
- Department of Dermatology, University of California-Davis, Sacramento, CA, USA.,College of Medicine, California Northstate University, Elk Grove, CA, USA.,Pacific Skin Institute, Sacramento, CA, USA.,Zen Dermatology, Sacramento, CA, USA.,Department of Biological Sciences, California State University, Sacramento, CA, USA
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The Influence of Small Intestinal Bacterial Overgrowth in Digestive and Extra-Intestinal Disorders. Int J Mol Sci 2020; 21:ijms21103531. [PMID: 32429454 PMCID: PMC7279035 DOI: 10.3390/ijms21103531] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 02/07/2023] Open
Abstract
Small intestinal bacterial overgrowth (SIBO) is a condition hallmarked by an increase in the concentration of colonic-type bacteria in the small bowel. Watery diarrhea, bloating, abdominal pain and distension are the most common clinical manifestations. Additionally, malnutrition and vitamin (B12, D, A, and E) as well as minerals (iron and calcium) deficiency may be present. SIBO may mask or worsen the history of some diseases (celiac disease, irritable bowel disease), may be more common in some extra-intestinal disorders (scleroderma, obesity), or could even represent a pathogenetic link with some diseases, in which a perturbation of intestinal microbiota may be involved. On these bases, we performed a review to explore the multiple links between SIBO and digestive and extra-intestinal diseases.
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