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Wielgosz-Grochowska JP, Domanski N, Drywień ME. Identification of SIBO Subtypes along with Nutritional Status and Diet as Key Elements of SIBO Therapy. Int J Mol Sci 2024; 25:7341. [PMID: 39000446 PMCID: PMC11242202 DOI: 10.3390/ijms25137341] [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: 05/23/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/16/2024] Open
Abstract
Small intestinal bacterial overgrowth (SIBO) is a pathology of the small intestine and may predispose individuals to various nutritional deficiencies. Little is known about whether specific subtypes of SIBO, such as the hydrogen-dominant (H+), methane-dominant (M+), or hydrogen/methane-dominant (H+/M+), impact nutritional status and dietary intake in SIBO patients. The aim of this study was to investigate possible correlations between biochemical parameters, dietary nutrient intake, and distinct SIBO subtypes. This observational study included 67 patients who were newly diagnosed with SIBO. Biochemical parameters and diet were studied utilizing laboratory tests and food records, respectively. The H+/M+ group was associated with low serum vitamin D (p < 0.001), low serum ferritin (p = 0.001) and low fiber intake (p = 0.001). The M+ group was correlated with high serum folic acid (p = 0.002) and low intakes of fiber (p = 0.001) and lactose (p = 0.002). The H+ group was associated with low lactose intake (p = 0.027). These results suggest that the subtype of SIBO may have varying effects on dietary intake, leading to a range of biochemical deficiencies. Conversely, specific dietary patterns may predispose one to the development of a SIBO subtype. The assessment of nutritional status and diet, along with the diagnosis of SIBO subtypes, are believed to be key components of SIBO therapy.
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Affiliation(s)
| | - Nicole Domanski
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, 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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Mares CR, Săsăran MO, Mărginean CO. The relationship between small intestinal bacterial overgrowth and constipation in children - a comprehensive review. Front Cell Infect Microbiol 2024; 14:1431660. [PMID: 38994003 PMCID: PMC11236546 DOI: 10.3389/fcimb.2024.1431660] [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: 05/12/2024] [Accepted: 06/12/2024] [Indexed: 07/13/2024] Open
Abstract
Small intestinal bacterial overgrowth (SIBO) is characterized by an increase in the bacterial population of the small intestine due to an imbalance between the amount of bacteria and the intestinal barrier. Pediatric SIBO presents with a wide spectrum of symptoms, ranging from mild gastrointestinal complaints to malabsorption or malnutrition. Breath tests are commonly used as noninvasive diagnostic tools for SIBO, but a standardized methodology is currently unavailable. Intestinal flora produces methane which slows intestinal transit and increases the contractile activity of small intestine. Emerging literature suggests a correlation between overgrowth of methanogenic bacteria in the intestines and constipation. Treatment of SIBO involves administration of antibacterial therapy in addition to management of underlying conditions and optimal dietary adjustments. However, research on antibiotic treatment for pediatric patients with constipation and SIBO is limited and has yielded conflicting results. In the current review, we summarize the state-of-the-art of the field and discuss previous treatment attempts and currently used regimens for SIBO patients with constipation, with a focus on pediatric populations.
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Affiliation(s)
- Cristina Roxana Mares
- Department of Pediatrics, “George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology of Târgu Mures, Târgu Mures, Romania
| | - Maria Oana Săsăran
- Department of Pediatrics 3, “George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology of Târgu Mures, Târgu Mures, Romania
| | - Cristina Oana Mărginean
- Department of Pediatrics 1, “George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology of Târgu Mures, Târgu Mures, Romania
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Xu J, Qu Q, Yang Y, Yang J, Fang T, Yin J, Mo Q, Wu Z, Zeng L, He H, Fu J, Zhou H, Huang W, Yang HJ. The Lactulose Breath Test Can Predict Refractory Gastroesophageal Reflux Disease by Measuring Bacterial Overgrowth in the Small Intestine. J Clin Gastroenterol 2024:00004836-990000000-00303. [PMID: 38896424 DOI: 10.1097/mcg.0000000000002031] [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: 12/30/2023] [Accepted: 05/06/2024] [Indexed: 06/21/2024]
Abstract
OBJECTIVE The diagnosis of RGERD in patients typically involves 24-hour esophageal pH monitoring, but due to its invasiveness and low patient compliance, new screening methods are needed. In this study, a lactulose breath test (LBT) was conducted to detect the growth of small intestine bacteria (SIBO) and explore the potential relationship between LBT and RGERD to identify a new treatment method for RGERD. METHODS A total of 178 patients with gastroesophageal reflux were enrolled from June 2020 to December 2022 in the Gastroenterology Department, Building 3, the First Affiliated Hospital of Kunming Medical University; these patients included 96 patients with nonrefractory GERD (NRGERD) and 82 patients with RGERD. The Gerd Q score, reflux symptom index (RSI) score, gastroscopy results, clinical symptoms, and other related indicators were collected. Statistical methods were used to analyze the gathered data. RESULTS The incidence of acid reflux and heartburn in patients with RGERD was significantly greater than that in patients with NRGERD (67.10% vs. 42.70%, P<0.01 and 65.00% vs. 34.40%, P<0.01). The CH4 values of patients with RGERD were significantly greater than those of patients with NRGERD at each time point, and there was a correlation between the CH4 values at 60 min and RGERD (P<0.05). For patients with RGERD, the incidence of abdominal pain, acid regurgitation, and heartburn was greater in the CH4-positive group than in the CH4-negative group (61.90% vs. 57.50%, 69.05% vs. 65.00%, 69.05% vs. 57.50%, P>0.05). The incidence of nausea was also greater in the CH4-positive group than in the CH4-negative group (61.90% vs. 35.00%, P<0.05). CONCLUSION Increased CH4 levels are correlated with RGERD. In addition, patients with RGERD may develop SIBO after long-term use of PPIs, and interventions involving SIBO could provide new ideas for the treatment of RGERD.
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Affiliation(s)
- Jing Xu
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Qiu Qu
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Yu Yang
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Jie Yang
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Ting Fang
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Jiajia Yin
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Qiquan Mo
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Zihan Wu
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Linran Zeng
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Huiping He
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
| | - Jinxiao Fu
- Department of Geriatrics, Affiliated Hospital of Yunnan University, Yunnan, China
| | - Hongjian Zhou
- Department of Geriatrics, Yuxi People's Hospital, Yunnan, China
| | - Wei Huang
- Department of Geriatrics, The Third People's Hospital of Yunnan Province, Yunnan, China
| | - Hong Ju Yang
- Geriatric Medical Center, Division of geriatric Gastroenterology, The First Afliated Hospital of Kunming Medical University, Yunnan, China
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Mitrović M, Dobrosavljević A, Odanović O, Knežević-Ivanovski T, Kralj Đ, Erceg S, Perućica A, Svorcan P, Stanković-Popović V. The effects of synbiotics on the liver steatosis, inflammation, and gut microbiome of metabolic dysfunction-associated liver disease patients-randomized trial. ROMANIAN JOURNAL OF INTERNAL MEDICINE = REVUE ROUMAINE DE MEDECINE INTERNE 2024; 62:184-193. [PMID: 38421902 DOI: 10.2478/rjim-2024-0004] [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: 12/06/2023] [Indexed: 03/02/2024]
Abstract
INTRODUCTION Metabolic Dysfunction-associated Liver Disease (MASLD) represents a spectrum of conditions from simple fat accumulation to non-alcoholic steatohepatitis. The possible role of the intestinal microbiome on MASLD development has been in focus. Our study aimed to examine the effects of synbiotics on the liver steatosis, inflammation, and stool microbiome. METHODS A double-blind, placebo-controlled study was conducted involving 84 MASLD patients, defined by an elastometric attenuation coefficient (ATT) greater than 0.63 dB/cm/MHz with an alanine aminotransferase level above 40 U/L for men and 35 U/L for women. The patients were divided into an intervention group treated with a synbiotic with 64x109 CFU of Lactobacillus and Bifidobacterium and 6.4g of inulin and a control group treated with a placebo. RESULTS Using synbiotics for 12 weeks significantly decreased liver steatosis (ΔATT -0.006±0.023 vs -0.016±0.021 dB/cm/MHz, p=0.046). The group of patients treated with synbiotics showed a significant decrease in the level of high-sensitive C-reactive protein (Δhs-CRP 0 vs -0.7 mg/L, p≤0.001). Synbiotics enriched the microbiome of patients in the intervention group with the genera Lactobacillus, Bifidobacterium, Faecalibacterium, and Streptococcus, by 81%, 55%, 51%, and 40%, respectively, with a reduction of Ruminococcus and Enterobacterium by 35% and 40%. Synbiotic treatment significantly shortened the gut transition time (ΔGTT -5h vs. -10h, p=0.031). CONCLUSION Synbiotics could be an effective and safe option that could have place in MASLD treatment.
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Affiliation(s)
- Miloš Mitrović
- 1Clinical Department for Gastroenterology and Hepatology, University Medical Center Zvezdara- Dimitrija Tucovića Street 161, 11000 Belgrade, Serbia
| | - Ana Dobrosavljević
- 1Clinical Department for Gastroenterology and Hepatology, University Medical Center Zvezdara- Dimitrija Tucovića Street 161, 11000 Belgrade, Serbia
| | - Olga Odanović
- 1Clinical Department for Gastroenterology and Hepatology, University Medical Center Zvezdara- Dimitrija Tucovića Street 161, 11000 Belgrade, Serbia
| | - Tamara Knežević-Ivanovski
- 1Clinical Department for Gastroenterology and Hepatology, University Medical Center Zvezdara- Dimitrija Tucovića Street 161, 11000 Belgrade, Serbia
| | - Đorđe Kralj
- 1Clinical Department for Gastroenterology and Hepatology, University Medical Center Zvezdara- Dimitrija Tucovića Street 161, 11000 Belgrade, Serbia
| | - Sanja Erceg
- 2Faculty of Pharmacy, Belgrade University- Department of Medical Biochemistry, Vojvode Stepe Street 450, 11000 Belgrade, Serbia
| | - Ana Perućica
- 3Microbiology Department, University Medical Center Zvezdara - Belgrade, Serbia, Preševska Street 31, 11000 Belgrade, Serbia
| | - Petar Svorcan
- 1Clinical Department for Gastroenterology and Hepatology, University Medical Center Zvezdara- Dimitrija Tucovića Street 161, 11000 Belgrade, Serbia
- 4Faculty of Medicine, Belgrade University, dr Subotića Street 8, 11000 Belgrade, Serbia
| | - Verica Stanković-Popović
- 4Faculty of Medicine, Belgrade University, dr Subotića Street 8, 11000 Belgrade, Serbia
- 5Nephrology Clinic, University Clinical Center, Pasterova Street 2, 11000 Belgrade, Serbia
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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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Wang S, Kou GJ, Zhao XH, Huang G, Wang JX, Tian L, Zuo XL, Li YQ, Wang JY, Yu YB. Altered mucosal bacteria and metabolomics in patients with Peutz-Jeghers syndrome. Gut Pathog 2024; 16:25. [PMID: 38678229 PMCID: PMC11056063 DOI: 10.1186/s13099-024-00617-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 04/19/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND Peutz-Jeghers syndrome (PJS) is a rare genetic disorder characterized by the development of pigmented spots, gastrointestinal polyps and increased susceptibility to cancers. Currently, most studies have investigated intestinal microbiota through fecal microbiota, and there are few reports about mucosa-associated microbiota. It remains valuable to search for the key intestinal microbiota or abnormal metabolic pathways linked to PJS. AIM This study aimed to assess the structure and composition of mucosa-associated microbiota in patients with PJS and to explore the potential influence of intestinal microbiota disorders and metabolite changes on PJS. METHODS The bacterial composition was analyzed in 13 PJS patients and 12 controls using 16S rRNA gene sequencing (Illumina MiSeq) for bacteria. Differential analyses of the intestinal microbiota were performed from the phylum to species level. Liquid chromatography-tandem mass spectrometry (LC‒MS) was used to detect the differentially abundant metabolites of PJS patients and controls to identify different metabolites and metabolic biomarkers of small intestinal mucosa samples. RESULTS High-throughput sequencing confirmed the special characteristics and biodiversity of the mucosa microflora in patients with PJS. They had lower bacterial biodiversity than controls. The abundance of intestinal mucosal microflora was significantly lower than that of fecal microflora. In addition, lipid metabolism, amino acid metabolism, carbohydrate metabolism, nucleotide metabolism and other pathways were significantly different from those of controls, which were associated with the development of the enteric nervous system, intestinal inflammation and development of tumors. CONCLUSION This is the first report on the mucosa-associated microbiota and metabolite profile of subjects with PJS, which may be meaningful to provide a structural basis for further research on intestinal microecology in PJS.
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Affiliation(s)
- Sui Wang
- Department of Respiratory Medicine, The Second Hospital of Shandong University, Jinan, 250033, Shandong, People's Republic of China
| | - Guan-Jun Kou
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Xiao-Han Zhao
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Gang Huang
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Jue-Xin Wang
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Lin Tian
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Xiu-Li Zuo
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Yan-Qing Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Jia-Yong Wang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China.
| | - Yan-Bo Yu
- Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China.
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Ouyang Q, Xu Y, Ban Y, Li J, Cai Y, Wu B, Hao Y, Sun Z, Zhang M, Wang M, Wang W, Zhao Y. Probiotics and Prebiotics in Subclinical Hypothyroidism of Pregnancy with Small Intestinal Bacterial Overgrowth. Probiotics Antimicrob Proteins 2024; 16:579-588. [PMID: 37032411 PMCID: PMC10987341 DOI: 10.1007/s12602-023-10068-4] [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] [Accepted: 03/20/2023] [Indexed: 04/11/2023]
Abstract
Evaluating efficacy of probiotics combined with prebiotics in small intestinal bacterial overgrowth (SIBO) in subclinical hypothyroidism (SCH) in the second trimester. We collected data from 78 pregnant women with SCH (SCH group) and 74 normal pregnant women (control group) in second trimester, compare the differences in high sensitivity C-reactive protein (hsCRP), result of lactulose methane-hydrogen breath test and gastrointestinal symptoms assessed by GSRS scale between two groups. In SCH group, 32 patients with SIBO were selected as intervention group. Treatment with probiotics + prebiotics for 21 days; The differences of lipid metabolism, hsCRP, thyroid function level, methane-hydrogen breath test results and GSRS scores before and after treatment were compared to evaluate the therapeutic effect. (1) The positive rate of SIBO and methane, hsCRP levels in SCH group were higher than those in control group (P < 0.05), the total score of GSRS scale, mean score of indigestion syndrome, and constipation syndrome in SCH group were higher (P < 0.05). (2) The mean abundance of hydrogen and methane were higher in SCH group. (3) After treatment, serum levels of thyrotropin(TSH), total cholesterol(TC), triglyceride(TG), low-density lipoprotein (LDL), and hsCRP in intervention group were decreased, and high-density lipoprotein (HDL) was increased compared with before treatment (P < 0.05). (4) After treatment, methane positive rate, total score of GSRS scale, mean score of diarrhea syndrome, dyspepsia syndrome, and constipation syndrome were decreased (P < 0.05). (5) The average abundance of methane and hydrogen were lower. Probiotics combined with prebiotics are effective in the treatment of SIBO in pregnant SCH patients.Clinical Trial Registration Number: ChiCTR1900026326.
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Affiliation(s)
- Qian Ouyang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yajuan Xu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Yanjie Ban
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jingjing Li
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanjun Cai
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bo Wu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingqi Hao
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zongzong Sun
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Miao Zhang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengqi Wang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wentao Wang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yinkai Zhao
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Li J, Yang F, Liu Y, Jiang X. Causal relationship between gut microbiota and rosacea: a two-sample Mendelian randomization study. Front Med (Lausanne) 2024; 11:1322685. [PMID: 38585146 PMCID: PMC10995375 DOI: 10.3389/fmed.2024.1322685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 03/06/2024] [Indexed: 04/09/2024] Open
Abstract
Background Rosacea, a chronic inflammatory skin condition affecting millions worldwide, is influenced by complex interactions between genetic and environmental factors. Although gut microbiota's role in skin health is well-acknowledged, definitive causal links between gut microbiota and rosacea remain under-explored. Methods Using a two-sample Mendelian randomization (MR) design, this study examined potential causal relationships between gut microbiota and rosacea. Data was sourced from the largest Genome-Wide Association Study (GWAS) for gut microbiota and the FinnGen biobank for rosacea. A total of 2078 single nucleotide polymorphisms (SNPs) associated with gut microbiota were identified and analyzed using a suite of MR techniques to discern causal effects. Results The study identified a protective role against rosacea for two bacterial genera: phylum Actinobacteria and genus Butyrivibrio. Furthermore, 14 gut microbiota taxa were discovered to exert significant causal effects on variant categories of rosacea. While none of these results met the strict False Discovery Rate correction threshold, they retained nominal significance. MR outcomes showed no pleiotropy, with homogeneity observed across selected SNPs. Directionality tests pointed toward a robust causative path from gut microbiota to rosacea. Conclusion This study provides compelling evidence of the gut microbiota's nominal causal influence on rosacea, shedding light on the gut-skin axis's intricacies and offering potential avenues for therapeutic interventions in rosacea management. Further research is warranted to validate these findings and explore their clinical implications.
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Affiliation(s)
- Jiaqi Li
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
| | - Fengjuan Yang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
| | - Yuling Liu
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
| | - Xian Jiang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
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Ivashkin VT, Fomin VV, Tkacheva ON, Medvedev OS, Poluektova EA, Abdulganieva DI, Abdulkhakov SR, Alexeeva OP, Alekseenko SA, Andreev DN, Baranovsky AY, Zharkova MS, Zolnikova OY, Ivashkin KV, Kliaritskaia IL, Korochanskaya NV, Mammaev SN, Maslennikov RV, Myazin RG, Perekalina MV, Povtoreyko AV, Ulyanin AI, Fadeeva MV, Khlynov IB, Tsukanov VV, Shifrin OS. Small Intestinal Bacterial Overgrowth in Various Specialties of Medical Practice (Literature Review and Expert Council Resolution). RUSSIAN JOURNAL OF GASTROENTEROLOGY, HEPATOLOGY, COLOPROCTOLOGY 2024; 34:14-34. [DOI: 10.22416/1382-4376-2024-954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2024]
Abstract
Aim: to discuss current views on the clinical significance, diagnostic opportunities, and therapeutic approaches in the treatment of small intestinal bacterial overgrowth (SIBO) as an important component in the gut microbiota function assessment, to assess the awareness of physicians and the opportunities in the diagnosis and treatment of this disease in patients in the Federal districts of the Russian Federation, as well as to present the proceedings of the Expert Council held on December 16, 2023 in Moscow.Key points. SIBO is a common syndrome often associated with irritable bowel syndrome, liver cirrhosis, asthma, and congestive heart failure, being also a predictor of early death in the elderly. Today, in many regions of the Russian Federation, there are limitations for instrumental diagnosis of this disease — lack of awareness among doctors, unavailability of gas analyzers for diagnosing SIBO, lack of information about the need to diagnose SIBO in the standards of compulsory health insurance. Rifaximin is the first-line treatment due to the highest therapeutic efficacy. One of the ways to increase the efficacy of SIBO treatment is to include strain-specific probiotics in the treatment regimen. Saccharomyces boulardii CNCM I-745 is thought to be the most studied, promising probiotic. The review also presents statistical data on the issues in the diagnosis and treatment of SIBO in the regions of the Russian Federation.Conclusion. Optimization of approaches to the diagnosis and treatment of SIBO, the development of domestic gas analyzers, increasing the awareness of physicians in all regions of the Russian Federation, as well as the development and optimization of clinical recommendations appear to be necessary measures to increase the effectiveness of medical care, the duration and quality of life of the Russian population. These goals can be achieved within the framework of Federal programs under the supervision of specialized reference centers of the Ministry of Health of the Russian Federation.
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Affiliation(s)
- V. T. Ivashkin
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - V. V. Fomin
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - O. N. Tkacheva
- N.I. Pirogov Russian National Research Medical University
| | - O. S. Medvedev
- M.V. Lomonosov Moscow State University; National Medical Research Center of Cardiology names after Academician E.I. Chazov
| | - E. A. Poluektova
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | | | - S. R. Abdulkhakov
- Kazan State Medical University; Kazan (Volga Region) Federal University
| | | | | | | | | | - M. S. Zharkova
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - O. Yu. Zolnikova
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - K. V. Ivashkin
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | | | | | | | - R. V. Maslennikov
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | | | | | | | - A. I. Ulyanin
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - M. V. Fadeeva
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | | | - V. V. Tsukanov
- Scientific Research Institute of Medical Problems of the North, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”
| | - O. S. Shifrin
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
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Wang X, Guo R, Yu Z, Zikela L, Li J, Li S, Han Q. Torreya grandis Kernel Oil Alleviates Loperamide-Induced Slow Transit Constipation via Up-Regulating the Colonic Expressions of Occludin/Claudin-1/ZO-1 and 5-HT3R/5-HT4R in BALB/c Mice. Mol Nutr Food Res 2024; 68:e2300615. [PMID: 38152983 DOI: 10.1002/mnfr.202300615] [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: 08/30/2023] [Revised: 11/11/2023] [Indexed: 12/29/2023]
Abstract
SCOPE Torreya grandis kernel has traditionally been used to remove intestinal parasites and increases intestinal motility. However, the effect of Torreya grandis kernel oil (TKO) on constipation has not yet been investigated. Therefore, mouse model is used to investigate the effect of TKO on slow transit constipation (STC) and its possible mechanism. METHODS AND RESULTS The effects of TKO on intestinal motility of STC mice are evaluated by fecal weight, fecal water content, colon length, defecation test, and intestinal propulsion test. The mechanism of TKO alleviating STC is explored by detecting biochemical analysis, histological analysis, western blot, qRT-PCR, immunohistochemistry, and gut microbiota analysis. The results reveal that TKO effectively promotes defecation and intestinal motility, increases the level of endothelin-1, and restores the histopathological morphology of the colon under LOP pretreatment. The expression levels of occludin, claudin-1, and zonula occludens-1 (ZO-1) mRNA and protein are up-regulated in mice receiving TKO treatment. The colonic 5-hydroxytryptamine 3R/4R (5-HT3R/5-HT4R) expressions are also increased by TKO supplementation. Additionally, TKO rescues LOP-caused disorders of the gut microbiota. CONCLUSION Consumption of TKO is beneficial to STC recovery, and it can alleviate LOP-induced STC by up-regulating the colonic expressions of Occludin/Claudin-1/ZO-1 and 5-HT3R/5-HT4R.
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Affiliation(s)
- Xuezhu Wang
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Rui Guo
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Zhuoli Yu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Lalai Zikela
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Jiaomei Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Songtao Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Qiang Han
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
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11
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Takakura W, Rezaie A, Chey WD, Wang J, Pimentel M. Symptomatic Response to Antibiotics in Patients With Small Intestinal Bacterial Overgrowth: A Systematic Review and Meta-analysis. J Neurogastroenterol Motil 2024; 30:7-16. [PMID: 38173154 PMCID: PMC10774808 DOI: 10.5056/jnm22187] [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: 11/07/2022] [Revised: 08/14/2023] [Accepted: 10/16/2023] [Indexed: 01/05/2024] Open
Abstract
Background/Aims We performed a systematic review and meta-analysis evaluating the symptomatic response rate to antibiotics in patients with small intestinal bacterial overgrowth (SIBO). Similarly, we performed a meta-analysis on the symptomatic response to antibiotics in irritable bowel syndrome (IBS) patients with and without SIBO. Methods MEDLINE, EMBASE, Web of Science, and Cochrane databases were searched from inception to March 2021. Randomized controlled trials and prospective studies reporting dichotomous outcomes were included. Results There were 6 studies included in the first meta-analysis comparing the efficacy of antibiotics to placebo or no antibiotic. This included 196 patients, of whom 101 received antibiotics and 95 received placebo or no antibiotics. Significantly more patients improved with antibiotics (relative risk [95% CI] = 2.46 [1.33-4.55], P = 0.004). There were 4 studies included in the analysis comparing symptomatic response rates in IBS patients with or without SIBO with 266 IBS patients, of whom 172 had SIBO and 94 did not. The pooled response rate for symptomatic response was 51.2% in the SIBO group vs 23.4% in the no SIBO group, respectively. Significantly more IBS patients with SIBO responded to antibiotics compared to those without SIBO (relative risk [95% CI] = 2.07 [1.40-3.08], P = 0.0003). Conclusions Antibiotics appear to be efficacious in treating SIBO, although small sample sizes and poor data quality limit this interpretation. Symptomatic response rates also appear to be higher in IBS patients with SIBO. This may be the first example of precision medicine in IBS as opposed to our current empiric treatment approach. Large-multicenter studies are needed to verify the results.
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Affiliation(s)
- Will Takakura
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, MI, USA
- Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA
| | - Ali Rezaie
- Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai, Los Angeles, CA, USA
| | - William D Chey
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Jiajing Wang
- Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA
| | - Mark Pimentel
- Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA
- Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai, Los Angeles, CA, USA
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Carrasco-Querol N, Cabricano-Canga L, Bueno Hernández N, Gonçalves AQ, Caballol Angelats R, Pozo Ariza M, Martín-Borràs C, Montesó-Curto P, Castro Blanco E, Dalmau Llorca MR, Aguilar Martín C. Nutrition and Chronobiology as Key Components of Multidisciplinary Therapeutic Interventions for Fibromyalgia and Associated Chronic Fatigue Syndrome: A Narrative and Critical Review. Nutrients 2024; 16:182. [PMID: 38257075 PMCID: PMC10818822 DOI: 10.3390/nu16020182] [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: 11/30/2023] [Revised: 12/27/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Fibromyalgia (FM) is often accompanied by chronic fatigue syndrome (CFS). It is a poorly understood disorder that mainly affects women and leads to chronic pain, fatigue, and insomnia, among other symptoms, which decrease quality of life. Due to the inefficiency of current pharmacological treatments, increasing interest is being directed towards non-pharmacological multicomponent therapies. However, nutrition and chronobiology are often overlooked when developing multicomponent therapies. This narrative and critical review explore the relevance of nutritional and chronobiological strategies in the therapeutic management of FM and the often-associated CFS. Reviewed literature offers scientific evidence for the association of dietary habits, nutrient levels, body composition, gut microbiota imbalance, chronobiological alterations, and their interrelation with the development and severity of symptoms. This review highlights the key role of nutrition and chronobiology as relevant and indispensable components in a multidisciplinary approach to FM and CFS.
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Affiliation(s)
- Noèlia Carrasco-Querol
- Unitat de Suport a la Recerca Terres de l’Ebre, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 43500 Tortosa, Spain; (N.B.H.); (A.Q.G.); (M.P.A.); (C.M.-B.); (E.C.B.); (C.A.M.)
| | | | - Nerea Bueno Hernández
- Unitat de Suport a la Recerca Terres de l’Ebre, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 43500 Tortosa, Spain; (N.B.H.); (A.Q.G.); (M.P.A.); (C.M.-B.); (E.C.B.); (C.A.M.)
| | - Alessandra Queiroga Gonçalves
- Unitat de Suport a la Recerca Terres de l’Ebre, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 43500 Tortosa, Spain; (N.B.H.); (A.Q.G.); (M.P.A.); (C.M.-B.); (E.C.B.); (C.A.M.)
- Red de Investigación en Cronicidad, Atención Primaria y Promoción de la Salud (RICAPPS), 08007 Barcelona, Spain
| | - Rosa Caballol Angelats
- Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 08007 Barcelona, Spain; (R.C.A.); (P.M.-C.); (M.R.D.L.)
- Servei d’Atenció Primària Terres de l’Ebre, Institut Català de la Salut (ICS), 43500 Tortosa, Spain
| | - Macarena Pozo Ariza
- Unitat de Suport a la Recerca Terres de l’Ebre, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 43500 Tortosa, Spain; (N.B.H.); (A.Q.G.); (M.P.A.); (C.M.-B.); (E.C.B.); (C.A.M.)
| | - Carme Martín-Borràs
- Unitat de Suport a la Recerca Terres de l’Ebre, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 43500 Tortosa, Spain; (N.B.H.); (A.Q.G.); (M.P.A.); (C.M.-B.); (E.C.B.); (C.A.M.)
- Departament de Fisioteràpia, Facultat de Ciencies de la Salut Blanquerna, Universitat Ramón Llull, 08025 Barcelona, Spain
| | - Pilar Montesó-Curto
- Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 08007 Barcelona, Spain; (R.C.A.); (P.M.-C.); (M.R.D.L.)
- Servei d’Atenció Primària Terres de l’Ebre, Institut Català de la Salut (ICS), 43500 Tortosa, Spain
- Departament de Medicina i Cirurgia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili (URV), 43201 Reus, Spain
| | - Elisabet Castro Blanco
- Unitat de Suport a la Recerca Terres de l’Ebre, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 43500 Tortosa, Spain; (N.B.H.); (A.Q.G.); (M.P.A.); (C.M.-B.); (E.C.B.); (C.A.M.)
| | - Maria Rosa Dalmau Llorca
- Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 08007 Barcelona, Spain; (R.C.A.); (P.M.-C.); (M.R.D.L.)
- Servei d’Atenció Primària Terres de l’Ebre, Institut Català de la Salut (ICS), 43500 Tortosa, Spain
| | - Carina Aguilar Martín
- Unitat de Suport a la Recerca Terres de l’Ebre, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol I Gurina (IDIAPJGol), 43500 Tortosa, Spain; (N.B.H.); (A.Q.G.); (M.P.A.); (C.M.-B.); (E.C.B.); (C.A.M.)
- Unitat d’Avaluació i Recerca, Direcció d’Atenció Primària Terres de l’Ebre i Gerència Territorial Terres de l’Ebre, Institut Català de la Salut (ICS), 43500 Tortosa, Spain
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13
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Zhang J, Shi B, Lu S, Wang S, Ren X, Liu R, Dong H, Li K, Fouad D, Ataya FS, Mansoor MK, Qamar H, Wu Q. Metagenomic analysis for exploring the potential of Lactobacillus yoelii FYL1 to mitigate bacterial diarrhea and changes in the gut microbiota of juvenile yaks. Microb Pathog 2024; 186:106496. [PMID: 38072228 DOI: 10.1016/j.micpath.2023.106496] [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: 10/17/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 01/02/2024]
Abstract
Diarrhea in calves is a common disease that results in poor nutrient absorption, poor growth and early death which leads to productivity and economic losses. Therefore, it is important to explore the methods to reduce diarrhea in yak's calves. Efficacy of lactic acid bacteria (LAB) for improvement of bacterial diarrhea is well recognized. For this purpose, two different doses (107 CFU, 1011 CFU) of Lactobacillus yoelii FYL1 isolated from yaks were fed to juvenile yaks exposed to E. coli O78. After a trial period of ten days fresh feces and intestinal contents of the experimental yaks were collected and metagenomics sequencing was performed. It was found that feeding a high dose of Lactobacillus yoelii FYL1 decreased abundance of phylum Firmicutes in the E. coli O78 infected group whereas, it was high in animals fed low dose of Lactobacillu yoelii FYL1. Results also revealed that counts of bacteria from the family Oscillospiraceae, genus Synergistes and Megasphaera were higher in control group whereas, order Bifidobacteriales and family Bifidobacteriaceae were higher in infected group. It was observed that bacterial counts for Pseudoruminococcus were significantly (P < 0.05) higher in animals of group that were given high dose of Lactobacillus yoelii FYL1 (HLAB). Compared to infected group multiple beneficial bacterial genera such as Deinococus and Clostridium were found higher in the animals that were given a low dose of Lactobacillus yoelii FYL1 (LLAB). The abundance of pathogenic bacterial genera that included Parascardovia, Bacteroides and Methanobrevibacter was decreased (P < 0.05) in the lower dose treated group. The results of functional analysis revealed that animals of LLAB had a higher metabolism of terpenoids and polyketides compared to animals of infected group. Virus annotation also presented a significant inhibitory effect of LLAB on some viruses (P < 0.05). It was concluded that L. yoelii FYL1 had an improved effect on gut microbiota of young yaks infected with E. coli O78. This experiment contributes to establish the positive effects of LAB supplementation while treating diarrhea.
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Affiliation(s)
- Jingbo Zhang
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Bin Shi
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China; Institute of Animal Husbandry and Veterinary Medicine, Tibet Autonomous Region Academy of Agriculture and Animal Science, Lhasa, 850009, China
| | - Sijia Lu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shuo Wang
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Xiaoli Ren
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Ruidong Liu
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Hailong Dong
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China
| | - Kun Li
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Dalia Fouad
- Department of Zoology, College of Science, King Saud University, PO Box 22452, Riyadh, 11495, Saudi Arabia
| | - Farid Shokry Ataya
- Department of Biochemistry, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Muhammad Khalid Mansoor
- Department of Microbiology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Hammad Qamar
- Institute of Animal Sciences, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Qingxia Wu
- Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, China.
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Mao X, Tan Y, Ye H, Yuan T, Peng Y, Zheng P. Photoacoustic Spectroscopy-Based Breath Analysis for SIBO. ACS Sens 2023; 8:4728-4736. [PMID: 38085692 DOI: 10.1021/acssensors.3c01816] [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] [Indexed: 12/23/2023]
Abstract
Breath hydrogen (H2) and methane (CH4) monitoring play an important role in the diagnosis of gastrointestinal disorders, such as lactose intolerance and small intestinal bacterial overgrowth (SIBO). In this paper, the photoacoustic spectroscopy method is used for H2 gas and CH4 gas detection. We present a novel approach for H2 gas concentration measurement, which is the linear relationship between the resonant frequency of breath carbon dioxide (CO2) and the H2 concentration in a resonant photoacoustic cell. Experimental results show that the minimum detectable limits of H2, CH4, and CO2 are calculated to be 8.86, 0.56, and 145.14 ppm, respectively, which can meet the requirements of breath diagnosis.
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Affiliation(s)
- Xuefeng Mao
- Chongqing University of Posts and Telecommunications, No. 2 Chongwen Road, Chongqing 400065, China
| | - Yuting Tan
- Chongqing University of Posts and Telecommunications, No. 2 Chongwen Road, Chongqing 400065, China
| | - Hao Ye
- Chongqing University of Posts and Telecommunications, No. 2 Chongwen Road, Chongqing 400065, China
| | - Tai Yuan
- Chongqing University of Posts and Telecommunications, No. 2 Chongwen Road, Chongqing 400065, China
| | - Yuxuan Peng
- Chongqing University of Posts and Telecommunications, No. 2 Chongwen Road, Chongqing 400065, China
| | - Peichao Zheng
- Chongqing University of Posts and Telecommunications, No. 2 Chongwen Road, Chongqing 400065, China
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Tyagi I, Tyagi K, Gupta V, Dutta R, Singhvi N, Kumar V, Bhutiani R, Prakash O. Microbial diversity characterizations, associated pathogenesis and antimicrobial resistance profiling of Najafgarh drain. ENVIRONMENTAL RESEARCH 2023; 238:117140. [PMID: 37716389 DOI: 10.1016/j.envres.2023.117140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/30/2023] [Accepted: 09/13/2023] [Indexed: 09/18/2023]
Abstract
The Najafgarh drain plays a significant role in the pollution of the Yamuna River, accounting for 40% of the total pollution. Therefore, it is crucial to investigate and analyze the microbial diversity, metabolic functional capacity, and antibiotic resistance genes (ARGs) present in the Najafgarh drain. Additionally, studying the water quality and its relationship with the proliferation of microorganisms in the drain is of utmost importance. Results obtained confirmed the deteriorated water quality as physico-chemical parameters such as biochemical oxygen demand (BOD), chemical oxygen demand (COD), dissolved oxygen (DO), and total suspended solids (TSS) in the range of 125-140, 400-460, 0-0.2, 25-140.4 mg/l respectively violated the standard permissible national and global standards. In addition, the next generation sequencing (NGS) analysis confirm the presence of genus such as Thauera, Arcobacter, Pseudomonas, Geobacter, Dechloromonas, Tolumonas, Sulfurospirullum, Desulfovibrio, Aeromonas, Bacteroides, Prevotella, Cloacibacterium, Bifidobacterium, Clostridium etc. along with 864 ARGs in the wastewater obtained from the Najafgarh drain. Findings confirm that the pathogenic species reported from this dataset possess severe detrimental impact on faunal and human health. Further, Pearson's r correlation analysis indicated that environmental variables, mainly total dissolved solids (TDS) and chemical oxygen demand (COD), play a pivotal role in driving microbial community structure of this heavily polluted drain. Thus, the poor water quality, presence of a microbial nexus, pathogenic markers, and ARGs throughout this drain confirmed that it would be one potential contributor to the dissemination of disease-causing agents (pathogens) to the household and drinking water supplies in the near future.
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Affiliation(s)
- Inderjeet Tyagi
- Centre for DNA Taxonomy, Molecular Systematics Division, Zoological Survey of India, Kolkata, 700 053, West Bengal, India.
| | - Koamud Tyagi
- Centre for DNA Taxonomy, Molecular Systematics Division, Zoological Survey of India, Kolkata, 700 053, West Bengal, India
| | - Vipin Gupta
- Ministry of Environment Forest and Climate Change, Integrated Regional Office-Dehradun, India, 248001, Uttarakhand, India
| | - Ritesh Dutta
- Kiit School of Biotechnology, Bhubaneswar, 751024, Odisha, India
| | - Nirjara Singhvi
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, 248007, India
| | - Vikas Kumar
- Centre for DNA Taxonomy, Molecular Systematics Division, Zoological Survey of India, Kolkata, 700 053, West Bengal, India.
| | - Rakesh Bhutiani
- Limnology and Ecological Modelling Lab, Department of Zoology and Environmental Science, Gurukul Kangri (Deemed to be University), Haridwar, 249404, UK, India
| | - Om Prakash
- Symbiosis Centre for Climate Change and Sustainability (SCCCS), Symbiosis International (Deemed University), Lavale, Pune, 412115, Maharastra, India
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Zhou A, Tang B, Xie Y, Li S, Xiao X, Wu L, Tu D, Wang S, Feng Y, Feng X, Lai Y, Ning S, Yang S. Changes of gut microbiota and short chain fatty acids in patients with Peutz-Jeghers syndrome. BMC Microbiol 2023; 23:373. [PMID: 38036954 PMCID: PMC10688050 DOI: 10.1186/s12866-023-03132-0] [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: 09/01/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023] Open
Abstract
Peutz-Jeghers Syndromeis a rare autosomal dominant genetic disease characterized by gastrointestinal hamartomatous polyps and skin and mucous membrane pigmentation. The pathogenesis of PJS remains unclear; however, it may be associated with mutations in the STK11 gene, and there is currently no effective treatment available. The gut microbiota plays an important role in maintaining intestinal homeostasis in the human body, and an increasing number of studies have reported a relationship between gut microbiota and human health and disease. However, relatively few studies have been conducted on the gut microbiota characteristics of patients with PJS. In this study, we analyzed the characteristics of the gut microbiota of 79 patients with PJS using 16 S sequencing and measured the levels of short-chain fatty acids in the intestines. The results showed dysbiosis in the gut microbiota of patients with PJS, and decreased synthesis of short-chain fatty acids. Bacteroides was positively correlated with maximum polyp length, while Agathobacter was negatively correlated with age of onset. In addition, acetic acid, propionic acid, and butyric acid were positively correlated with the age of onset but negatively correlated with the number of polyps. Furthermore, the butyric acid level was negatively correlated with the frequency of endoscopic surgeries. In contrast, we compared the gut microbiota of STK11-positive and STK11-negative patients with PJS for the first time, but 16 S sequencing analysis revealed no significant differences. Finally, we established a random forest prediction model based on the gut microbiota characteristics of patients to provide a basis for the targeted diagnosis and treatment of PJS in the future.
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Affiliation(s)
- An Zhou
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Bo Tang
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Yuhong Xie
- Department of Gastroenterology, Air Force Medical Center, Beijing, 100142, China
| | - Shengpeng Li
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Xu Xiao
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Lingyi Wu
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Dianji Tu
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Sumin Wang
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Yunxuan Feng
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Xiaojie Feng
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Yi Lai
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Shoubin Ning
- Department of Gastroenterology, Air Force Medical Center, Beijing, 100142, China.
| | - Shiming Yang
- Department of Gastroenterology, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China.
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17
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Heston MB, Hanslik KL, Zarbock KR, Harding SJ, Davenport-Sis NJ, Kerby RL, Chin N, Sun Y, Hoeft A, Deming Y, Vogt NM, Betthauser TJ, Johnson SC, Asthana S, Kollmorgen G, Suridjan I, Wild N, Zetterberg H, Blennow K, Rey FE, Bendlin BB, Ulland TK. Gut inflammation associated with age and Alzheimer's disease pathology: a human cohort study. Sci Rep 2023; 13:18924. [PMID: 37963908 PMCID: PMC10646035 DOI: 10.1038/s41598-023-45929-z] [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: 04/25/2023] [Accepted: 10/25/2023] [Indexed: 11/16/2023] Open
Abstract
Age-related disease may be mediated by low levels of chronic inflammation ("inflammaging"). Recent work suggests that gut microbes can contribute to inflammation via degradation of the intestinal barrier. While aging and age-related diseases including Alzheimer's disease (AD) are linked to altered microbiome composition and higher levels of gut microbial components in systemic circulation, the role of intestinal inflammation remains unclear. To investigate whether greater gut inflammation is associated with advanced age and AD pathology, we assessed fecal samples from older adults to measure calprotectin, an established marker of intestinal inflammation which is elevated in diseases of gut barrier integrity. Multiple regression with maximum likelihood estimation and Satorra-Bentler corrections were used to test relationships between fecal calprotectin and clinical diagnosis, participant age, cerebrospinal fluid biomarkers of AD pathology, amyloid burden measured using 11C-Pittsburgh compound B positron emission tomography (PiB PET) imaging, and performance on cognitive tests measuring executive function and verbal learning and recall. Calprotectin levels were elevated in advanced age and were higher in participants diagnosed with amyloid-confirmed AD dementia. Additionally, among individuals with AD dementia, higher calprotectin was associated with greater amyloid burden as measured with PiB PET. Exploratory analyses indicated that calprotectin levels were also associated with cerebrospinal fluid markers of AD, and with lower verbal memory function even among cognitively unimpaired participants. Taken together, these findings suggest that intestinal inflammation is linked with brain pathology even in the earliest disease stages. Moreover, intestinal inflammation may exacerbate the progression toward AD.
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Affiliation(s)
- Margo B Heston
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Kendra L Hanslik
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Katie R Zarbock
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - Sandra J Harding
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Nancy J Davenport-Sis
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Robert L Kerby
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - Nathaniel Chin
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Yi Sun
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - Ana Hoeft
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Yuetiva Deming
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer's Institute, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Nicholas M Vogt
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Tobey J Betthauser
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Sterling C Johnson
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer's Institute, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Sanjay Asthana
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | | | | | | | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
- UK Dementia Research Institute at UCL, London, UK
- Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Federico E Rey
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA.
| | - Barbara B Bendlin
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
- Wisconsin Alzheimer's Institute, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA.
| | - Tyler K Ulland
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA.
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18
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Xue H, Mei C, Wang F, Tang X. Relationship among Chinese herb polysaccharide (CHP), gut microbiota, and chronic diarrhea and impact of CHP on chronic diarrhea. Food Sci Nutr 2023; 11:5837-5855. [PMID: 37823142 PMCID: PMC10563694 DOI: 10.1002/fsn3.3596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/13/2023] [Accepted: 07/22/2023] [Indexed: 10/13/2023] Open
Abstract
Chronic diarrhea, including diarrhea-predominant irritable bowel syndrome (IBS-D), osmotic diarrhea, bile acid diarrhea, and antibiotic-associated diarrhea, is a common problem which is highly associated with disorders of the gut microbiota composition such as small intestinal bacterial overgrowth (SIBO) and so on. A growing number of studies have supported the view that Chinese herbal formula alleviates the symptoms of diarrhea by modulating the fecal microbiota. Chinese herbal polysaccharides (CHPs) are natural polymers composed of monosaccharides that are widely found in Chinese herbs and function as important active ingredients. Commensal gut microbiota has an extensive capacity to utilize CHPs and play a vital role in degrading polysaccharides into short-chain fatty acids (SCFAs). Many CHPs, as prebiotics, have an antidiarrheal role to promote the growth of beneficial bacteria and inhibit the colonization of pathogenic bacteria. This review systematically summarizes the relationship among gut microbiota, chronic diarrhea, and CHPs as well as recent progress on the impacts of CHPs on the gut microbiota and recent advances on the possible role of CHPs in chronic diarrhea.
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Affiliation(s)
- Hong Xue
- Digestive Laboratory of Traditional Chinese Medicine Research Institute of Spleen and Stomach DiseasesXiyuan Hospital, China Academy of Chinese Medical SciencesBeijingChina
| | - Chun‐Feng Mei
- Digestive Laboratory of Traditional Chinese Medicine Research Institute of Spleen and Stomach DiseasesXiyuan Hospital, China Academy of Chinese Medical SciencesBeijingChina
| | - Feng‐Yun Wang
- Digestive Laboratory of Traditional Chinese Medicine Research Institute of Spleen and Stomach DiseasesXiyuan Hospital, China Academy of Chinese Medical SciencesBeijingChina
| | - Xu‐Dong Tang
- Digestive Laboratory of Traditional Chinese Medicine Research Institute of Spleen and Stomach DiseasesXiyuan Hospital, China Academy of Chinese Medical SciencesBeijingChina
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19
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Yau YK, Su Q, Xu Z, Tang W, Ching JYL, Mak JWY, Cheung CP, Fung M, Ip M, Chan PKS, Wu JCY, Chan FKL, Ng SC. Randomised clinical trial: Faecal microbiota transplantation for irritable bowel syndrome with diarrhoea. Aliment Pharmacol Ther 2023; 58:795-804. [PMID: 37667968 DOI: 10.1111/apt.17703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/11/2023] [Accepted: 08/23/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Faecal microbiota transplantation (FMT) has been shown to improve symptoms in a proportion of patients with irritable bowel syndrome (IBS). AIM We performed a randomised trial to assess the efficacy of FMT in patients with IBS. METHODS We randomised 56 patients with diarrhoea-predominant IBS 1:1 to FMT or placebo via the duodenal route at baseline and week 4. The primary outcome was > 50 points decrease in IBS severity scoring system (IBS-SSS) score at week 12. Secondary outcomes were improvement in bloating and change in gut microbiota at week 12. After 12-week follow-up, those in the placebo group were assigned to receive open-label FMT. RESULTS At week 12, 57.1% in the FMT group and 46.4% in the placebo group achieved the primary endpoint (p = 0.42). More patients receiving FMT than placebo had improvement in bloating (72% vs 30%; p = 0.005). In an open-label extension, 65.2% and 82.4% of patients achieved, respectively, the primary endpoint and improvement in bloating. Faecal microbiome of patients in the FMT group showed a reduction in bacteria like Ruminococcus gnavus and enrichment of bacteria such as Lawsonibacter at week 12, while no change in the placebo group. Functional analyses showed that the hydrogen sulphide-producing pathway decreased in patients who had FMT (p < 0.05) accompanied by a reduction in contributing bacteria. There were no serious adverse events related to FMT. CONCLUSION FMT performed twice at an interval of four weeks did not significantly reduce IBS-SSS score. However, more patients had improvement in abdominal bloating, which was associated with a reduction in hydrogen sulphide-producing bacteria. (ClinicalTrials.gov NCT03125564).
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Affiliation(s)
- Yuk Kam Yau
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Qi Su
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Zhilu Xu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Whitney Tang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jessica Y L Ching
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
| | - Joyce Wing Yan Mak
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chun Pan Cheung
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Matthew Fung
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Margaret Ip
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Paul Kay Sheung Chan
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Justin Che Yuen Wu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Francis Ka Leung Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Siew C Ng
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
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20
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Kiyama T, Tokunaga A, Naji A, Barbul A. Changes in the negative logarithm of end-tidal hydrogen partial pressure indicate the variation of electrode potential in healthy Japanese subjects. Sci Rep 2023; 13:15473. [PMID: 37726384 PMCID: PMC10509160 DOI: 10.1038/s41598-023-42651-8] [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: 02/17/2023] [Accepted: 09/13/2023] [Indexed: 09/21/2023] Open
Abstract
Molecular hydrogen (H2) is produced by human colon microbiomes and exhaled. End-tidal H2 sampling is a simple method of measuring alveolar H2. The logarithm of the hydrogen ion (H+)/H2 ratio suggests the electrode potential in the solution according to the Nernst equation. As pH is defined as the negative logarithm of the H+ concentration, pH2 is defined as the negative logarithm of the H2 effective pressure in this study. We investigated whether changes in pH2 indicated the variation of electrode potential in the solution and whether changes in end-tidal pH2 could be measured using a portable breath H2 sensor. Changes in the electrode potential were proportional to ([Formula: see text]) in phosphate-buffered solution (pH = 7.1). End-tidal H2 was measured in the morning (baseline) and at noon (after daily activities) in 149 healthy Japanese subjects using a handheld H2 sensor. The median pH2 at the baseline was 4.89, and it increased by 0.15 after daily activities. The variation of electrode potential was obtained by multiplying the pH2 difference, which suggested approximately + 4.6 mV oxidation after daily activities. These data suggested that changes in end-tidal pH2 indicate the variation of electrode potential during daily activities in healthy human subjects.
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Affiliation(s)
- Teruo Kiyama
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Bunkyo, Tokyo, Japan.
- Department of Surgery, TMG Asaka Medical Center, Asaka, Saitama, Japan.
- Department of Surgery, Musashino Tokushukai Hospital, Nishi-Tokyo, Tokyo, Japan.
| | - Akira Tokunaga
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Bunkyo, Tokyo, Japan
| | - Abumrad Naji
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Adrian Barbul
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
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21
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Wielgosz-Grochowska JP, Domanski N, Drywień ME. Influence of Body Composition and Specific Anthropometric Parameters on SIBO Type. Nutrients 2023; 15:4035. [PMID: 37764818 PMCID: PMC10535553 DOI: 10.3390/nu15184035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/04/2023] [Accepted: 09/16/2023] [Indexed: 09/29/2023] Open
Abstract
Recent observations have shown that Small Intestinal Bacterial Overgrowth (SIBO)affects the host through various mechanisms. While both weight loss and obesity have been reported in the SIBO population due to alterations in the gut microbiome, very little is known about the influence of SIBO type on body composition. This study aimed to evaluate whether there is a link between the three types of SIBO: methane dominant (M+), hydrogen dominant (H+), and methane-hydrogen dominant (H+/M+) and specific anthropometric parameters. This observational study included 67 participants (W = 53, M = 14) with gastrointestinal symptoms and SIBO confirmed by lactulose hydrogen-methane breath tests (LHMBTs) using the QuinTron device. Participants underwent a body composition assessment by Bioelectrical Impedance Analysis (BIA) using the InBody Analyzer. In the H+/M+ group, body weight (p = 0.010), BMI (p = 0.001), body fat in kg (p = 0.009), body fat in % (p = 0.040), visceral fat (p = 0.002), and mineral bone content (p = 0.049) showed an inverse correlation with hydrogen (H2) gas production. These findings suggest that body weight, BMI, body fat, and mineral bone content may be inversely linked to the production of hydrogen and the risk of hydrogen-methane SIBO.
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Affiliation(s)
| | - Nicole Domanski
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, 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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22
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Cho YK, Lee J, Paik CN. Prevalence, risk factors, and treatment of small intestinal bacterial overgrowth in children. Clin Exp Pediatr 2023; 66:377-383. [PMID: 37599259 PMCID: PMC10475858 DOI: 10.3345/cep.2022.00969] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 08/22/2023] Open
Abstract
Small intestinal bacterial overgrowth (SIBO) is defined as the presence of an excessive number of bacteria within the small bowel. Pediatric SIBO is a heterogeneous disorder that manifests as various symptoms ranging from mild gastrointestinal symptoms to malabsorption or malnutrition. The carbohydrate breath test is a commonly used, safe, and noninvasive diagnostic test; however, a standardized methodology is lacking. Multiple factors, such as neuromuscular disorders, systemic diseases, chronic drug use, or altered intestinal anatomy that disturb intestinal motility or induce an abnormality in the body's defense systems against intestinal bacteria, predispose children to SIBO. The high prevalence and similar symptoms of SIBO in functional gastrointestinal disorders, including irritable bowel syndrome, suggest an association between them. The principles of treatment include managing predisposing conditions, nutritional support, symptom control, and antibacterial treatment. Rifaximin is the most commonly used drug. To date, studies of antibiotic treatment in pediatric populations with irritable bowel syndrome or SIBO are lacking and have shown mixed results. Here we review the prevalence, diagnostic tests, and treatment results in pediatric populations.
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Affiliation(s)
- Yu Kyung Cho
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jin Lee
- Department of Pediatrics, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chang Nyol Paik
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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23
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Dervin H, Zarate-Lopez N, Sweis R, Mensah A, Fragkos K, Brugaletta C, Raeburn A, Emmanuel A. Low prevalence of positive hydrogen breath tests in patients with functional gastrointestinal conditions and hypermobile Ehlers-Danlos syndrome. Neurogastroenterol Motil 2023; 35:e14570. [PMID: 36989174 DOI: 10.1111/nmo.14570] [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: 07/29/2022] [Revised: 01/25/2023] [Accepted: 03/07/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND Using hydrogen breath testing (HBT) to diagnose small intestinal bacterial overgrowth (SIBO) remains controversial in patients with functional gastrointestinal (GI) disorders, and unknown in those with hypermobility Ehlers-Danlos syndrome (hEDS). We assessed prevalence of positive HBTs in these groups, evaluated the predictive value of GI symptoms and the potential role of proton pump inhibitors (PPIs) on test results. METHODS Sequential patients referred for HBT to a tertiary unit were classified into the following groups: GI maldigestion/malabsorption, GI sensorimotor disorders, hEDS, and functional GI disorders. All underwent standardized HBT, and the yield was assessed against symptoms and PPI use. KEY RESULTS A total of 1062 HBTs were performed over 3 years (70% female, mean age 48 ± 16 years). Overall, 7.5% (80/1062) patients had a positive HBT. Prevalence of positive HBT was highest in patients with GI maldigestion/malabsorption (17.9%; DOR 16.16, p < 0.001), GI sensorimotor disorders (15.9%; DOR 8.84, p < 0.001), compared to functional GI disorders (1.6%; DOR 1.0) (p < 0.0001). None of the hEDS patients tested positive for HBT. A positive HBT was independently associated with increased age (DOR 1.03; p < 0.001) and symptoms of diarrhea (DOR 3.95; p < 0.0001). Patients on PPIs tended towards a positive HBT than patients off PPIs (16.1% vs 6.9%; DOR 2.47; p < 0.0001). CONCLUSIONS & INFERENCES Less than 2% of patients with functional GI disorders, and none of the patients with hEDS had a positive HBT. Pre-test probability was higher in patients with: GI structural or neurological disorders; use of long-term PPIs and symptoms of diarrhea. These criteria may be helpful in making appropriate therapeutic decisions and avoiding unnecessary hydrogen breath testing.
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Affiliation(s)
- Humayra Dervin
- GI Physiology Unit, University College London Hospitals, London, UK
| | | | - Rami Sweis
- GI Physiology Unit, University College London Hospitals, London, UK
| | - Alexia Mensah
- GI Physiology Unit, University College London Hospitals, London, UK
| | | | | | - Amanda Raeburn
- GI Physiology Unit, University College London Hospitals, London, UK
| | - Anton Emmanuel
- GI Physiology Unit, University College London Hospitals, London, UK
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24
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Jayasinghe M, Damianos JA, Prathiraja O, Oorloff MD, Nagalmulla K GM, Nadella A, Caldera D, Mohtashim A. Irritable Bowel Syndrome: Treating the Gut and Brain/Mind at the Same Time. Cureus 2023; 15:e43404. [PMID: 37706135 PMCID: PMC10496425 DOI: 10.7759/cureus.43404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/13/2023] [Indexed: 09/15/2023] Open
Abstract
Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal (GI) disorders in the world. Although IBS does not affect a person's life span, it can significantly influence their quality of life. The treatment of IBS should be tailored to each patient's specific symptomatology because it can often be difficult to manage. Given that the pathogenesis of IBS is not well understood, it places a tremendous load on healthcare resources. Over the years, IBS has been described as either a simple GI disorder or a more complex multi-symptomatic gut-brain axis disorder. Many persons with IBS have psychological issues in addition to gastrointestinal symptoms, offering the door to non-pharmacological therapies such as cognitive behavioral therapy, gut-directed hypnosis, or psychodynamic interpersonal therapy. Non-pharmacological therapies with no side effects should be used as first-line therapy. Diet, exercise, microbiota-targeted therapies, and psychological treatments are among the most significant interventions. This review goes into the details of all the non-pharmacological interventions that can be used to treat IBS.
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Affiliation(s)
| | - John A Damianos
- Gastroenterology and Hepatology, Mayo Clinic, Rochester, USA
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25
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Aslan I, Tarhan Celebi L, Kayhan H, Kizilay E, Gulbahar MY, Kurt H, Cakici B. Probiotic Formulations Containing Fixed and Essential Oils Ameliorates SIBO-Induced Gut Dysbiosis in Rats. Pharmaceuticals (Basel) 2023; 16:1041. [PMID: 37513952 PMCID: PMC10383999 DOI: 10.3390/ph16071041] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/13/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Dysbiosis of the gut microbiota is associated with the pathogenesis of intestinal diseases such as inflammatory bowel disease, irritable bowel syndrome (IBS), small intestinal bacterial overgrowth (SIBO), and metabolic disease states such as allergies, cardiovascular diseases, obesity, and diabetes. SIBO is a condition characterized by an increased number (>1 × 103 CFU) of abnormal bacterial species in the small intestine. Interest in SIBO has gained importance due to increased awareness of the human microbiome and its potential relationships with human health and disease, which has encouraged new work in this area. In recent years, standard antibiotic regimens (rifaximin and metronidazole) have been used to treat SIBO, but solo antibiotics or their derivatives are insufficient. In this study, the therapeutic effects of the probiotic form, which contains coconut oil and traces of peppermint-lemon-patchouli essential oil, were evaluated on the Dysbiosis-Based Rat SIBO Model. There are significant differences between sick and healthy rats (p = 0.014), between sick rats and rats treated with the oil mix plus probiotic mix protocol (p = 0.026), and between rats treated with only the probiotic and only oil protocols (p = 0.030) in the evaluation of TNF-α levels. Histologically, villi distortion and loss of crypts, epithelial shedding and necrotic changes in the apical regions of the villi, and inflammatory cell infiltrations extending to the lamina propria and submucosa were observed in sick rats. Mitotic figures in villus epithelium and crypts were observed in rats treated with 9.2 × 109 CFU/1000 mg/coconut oil + trace amounts of peppermint-lemon-patchouli essential oil and a probiotic mixture (oil + probiotic mix protocol). A regression of inflammatory reactions and an increase in goblet cells were observed. A decrease was observed in inflammation markers in sick rats. On the other hand, the oil plus probiotic mix protocol recovered digestive system defects in the animals caused by dysbiosis. In the future, these treatment approaches can be effective in the treatment of SIBO.
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Affiliation(s)
- Ismail Aslan
- Department of Pharmaceutical Technology, Hamidiye Faculty of Pharmacy, University of Health Sciences, İstanbul 34668, Turkey
- SFA R&D and Analysis Services, Teknopark İstanbul, İstanbul 34906, Turkey
- ATA BIO Technologies, Teknopol İstanbul, İstanbul 34930, Turkey
| | - Leyla Tarhan Celebi
- SFA R&D and Analysis Services, Teknopark İstanbul, İstanbul 34906, Turkey
- ATA BIO Technologies, Teknopol İstanbul, İstanbul 34930, Turkey
| | - Hulya Kayhan
- Art de Huile, Teknopol İstanbul, İstanbul 34930, Turkey
| | - Emine Kizilay
- Hamidiye Vocational School of Health Services, University of Health Sciences, İstanbul 34668, Turkey
| | - Mustafa Yavuz Gulbahar
- Department of Pathology, Faculty of Veterinary Medicine, Ondokuz Mayıs University, Samsun 55200, Turkey
| | - Halil Kurt
- Department of Medical Biology, Hamidiye International Faculty of Medicine, University of Health Sciences, İstanbul 34668, Turkey
| | - Bekir Cakici
- SFA R&D and Analysis Services, Teknopark İstanbul, İstanbul 34906, Turkey
- ATA BIO Technologies, Teknopol İstanbul, İstanbul 34930, Turkey
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Tian L, Huang C, Fu W, Gao L, Mi N, Bai M, Ma H, Zhang C, Lu Y, Zhao J, Zhang X, Jiang N, Lin Y, Yue P, Yuan J, Meng W. Proton pump inhibitors may enhance the risk of digestive diseases by regulating intestinal microbiota. Front Pharmacol 2023; 14:1217306. [PMID: 37529701 PMCID: PMC10387554 DOI: 10.3389/fphar.2023.1217306] [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: 05/05/2023] [Accepted: 07/06/2023] [Indexed: 08/03/2023] Open
Abstract
Proton pump inhibitors (PPIs) are the most used acid-inhibitory drugs, with a wide range of applications in the treatment of various digestive diseases. However, recently, there has been a growing number of digestive complications linked to PPIs, and several studies have indicated that the intestinal flora play an important role in these complications. Therefore, developing a greater understanding of the role of the gut microbiota in PPI-related digestive diseases is essential. Here, we summarize the current research on the correlation between PPI-related digestive disorders and intestinal flora and establish the altered strains and possible pathogenic mechanisms of the different diseases. We aimed to provide a theoretical basis and reference for the future treatment and prevention of PPI-related digestive complications based on the regulation of the intestinal microbiota.
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Affiliation(s)
- Liang Tian
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Chongfei Huang
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Wenkang Fu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Long Gao
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Ningning Mi
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Mingzhen Bai
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Haidong Ma
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Chao Zhang
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Yawen Lu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Jinyu Zhao
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Xianzhuo Zhang
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Ningzu Jiang
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Yanyan Lin
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Ping Yue
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Jinqiu Yuan
- Clinical Research Center, Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Wenbo Meng
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
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27
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Takakura W, Rezaie A. Response to Mion et al. Am J Gastroenterol 2023; 118:1300-1301. [PMID: 37377267 DOI: 10.14309/ajg.0000000000002270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Affiliation(s)
- Will Takakura
- Division of Gastroenterology, Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ali Rezaie
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Medically Associated Science and Technology, Cedars-Sinai Medical Center, Los Angeles, California, USA
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28
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Durgam N, Dashputre AA, Moshkovich O, Rezaie A, Martinez N, Enayati P, Stansbury J, Joseph G. Content validation of a daily patient-reported outcome measure for assessing symptoms in patients with Small Intestinal Bacterial Overgrowth. Qual Life Res 2023:10.1007/s11136-023-03407-z. [PMID: 37212941 PMCID: PMC10393850 DOI: 10.1007/s11136-023-03407-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2023] [Indexed: 05/23/2023]
Abstract
PURPOSE The aim of this study was to generate evidence supporting the development and content validity of a new PRO instrument, the Small Intestinal Bacterial Overgrowth (SIBO) Symptom Measure (SSM) daily diary. The SSM assesses symptom severity in SIBO patients, with the ultimate goal of providing a fit for purpose PRO for endpoint measurement. METHODS Qualitative research included 35 SIBO patients in three study stages, using a hybrid concept elicitation (CE)/cognitive interview (CI) method with US patients, ≥ 18 years. Stage 1 included a literature review, clinician interviews, and initial CE interviews with SIBO patients to identify symptoms important to patients for inclusion in the SSM. Stage 2 included hybrid CE/CI to learn more about patients' SIBO experience and test the draft SSM. Finally, stage 3 used CIs to refine the instrument and test its content validity. RESULTS In stage 1 (n = 8), 15 relevant concepts were identified, with items drafted based on the literature review/clinician interviews and elicitation work. Within stage 2 (n = 15), the SSM was refined to include 11 items; with wording revised for three items. Stage 3 (n = 12) confirmed the comprehensiveness of the SSM, as well as appropriateness of the item wording, recall period, and response scale. The resulting 11-item SSM assesses the severity of bloating, abdominal distention, abdominal discomfort, abdominal pain, flatulence, physical tiredness, nausea, diarrhea, constipation, appetite loss, and belching. CONCLUSIONS This study provides evidence supporting the content validity of the new PRO. Comprehensive patient input ensures that the SSM is a well-defined measure of SIBO, ready for psychometric validation studies.
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Affiliation(s)
- Neha Durgam
- ICON plc, 4130 Parklake Ave Suite 400, Raleigh, NC, 27612, USA
| | | | - Olga Moshkovich
- ICON plc, 4130 Parklake Ave Suite 400, Raleigh, NC, 27612, USA
| | - Ali Rezaie
- Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | | | | | - James Stansbury
- ICON plc, 4130 Parklake Ave Suite 400, Raleigh, NC, 27612, USA
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Xiao Q, Chen YH, Chen YL, Chien YS, Hsieh LH, Shirakawa H, Yang SC. Potential Benefits of Epidermal Growth Factor for Inhibiting Muscle Degrative Markers in Rats with Alcoholic Liver Damage. Int J Mol Sci 2023; 24:ijms24108845. [PMID: 37240190 DOI: 10.3390/ijms24108845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/29/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
This study investigated the beneficial effects of epidermal growth factor (EGF) on muscle loss in rats with chronic ethanol feeding. Six-week-old male Wistar rats were fed either a control liquid diet without EGF (C group, n = 12) or EGF (EGF-C group, n = 18) for two weeks. From the 3rd to 8th week, the C group was divided into two groups. One was continually fed with a control liquid diet (C group), and the other one was fed with an ethanol-containing liquid diet (E group); moreover, the EGF-C group was divided into three groups, such as the AEGF-C (continually fed with the same diet), PEGF-E (fed with the ethanol-containing liquid diet without EGF), and AEGF-E (fed with the ethanol-containing liquid diet with EGF). As a result, the E group had significantly higher plasma ALT and AST, endotoxin, ammonia, and interleukin 1b (IL-1b) levels, along with liver injuries, such as hepatic fatty changes and inflammatory cell infiltration. However, plasma endotoxin and IL-1b levels were significantly decreased in the PEGF-E and AEGF-E groups. In addition, the protein level of muscular myostatin and the mRNA levels of forkhead box transcription factors (FOXO), muscle RING-finger protein-1 (MURF-1) and atorgin-1 was increased considerably in the E group but inhibited in the PEGF-E and AEGF-E groups. According to the principal coordinate analysis findings, the gut microbiota composition differed between the control and ethanol liquid diet groups. In conclusion, although there was no noticeable improvement in muscle loss, EGF supplementation inhibited muscular protein degradation in rats fed with an ethanol-containing liquid diet for six weeks. The mechanisms might be related to endotoxin translocation inhibition, microbiota composition alteration as well as the amelioration of liver injury. However, the reproducibility of the results must be confirmed in future studies.
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Affiliation(s)
- Qian Xiao
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Yi-Hsiu Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Ya-Ling Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Yu-Shan Chien
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Li-Hsuan Hsieh
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Hitoshi Shirakawa
- Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8857, Japan
| | - Suh-Ching Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan
- Research Center of Geriatric Nutrition, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- School of Gerontology and Long-Term Care, College of Nursing, Taipei Medical University, Taipei 11031, Taiwan
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30
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Casanova A, Wevers A, Navarro-Ledesma S, Pruimboom L. Mitochondria: It is all about energy. Front Physiol 2023; 14:1114231. [PMID: 37179826 PMCID: PMC10167337 DOI: 10.3389/fphys.2023.1114231] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/29/2023] [Indexed: 05/15/2023] Open
Abstract
Mitochondria play a key role in both health and disease. Their function is not limited to energy production but serves multiple mechanisms varying from iron and calcium homeostasis to the production of hormones and neurotransmitters, such as melatonin. They enable and influence communication at all physical levels through interaction with other organelles, the nucleus, and the outside environment. The literature suggests crosstalk mechanisms between mitochondria and circadian clocks, the gut microbiota, and the immune system. They might even be the hub supporting and integrating activity across all these domains. Hence, they might be the (missing) link in both health and disease. Mitochondrial dysfunction is related to metabolic syndrome, neuronal diseases, cancer, cardiovascular and infectious diseases, and inflammatory disorders. In this regard, diseases such as cancer, Alzheimer's, Parkinson's, amyotrophic lateral sclerosis (ALS), chronic fatigue syndrome (CFS), and chronic pain are discussed. This review focuses on understanding the mitochondrial mechanisms of action that allow for the maintenance of mitochondrial health and the pathways toward dysregulated mechanisms. Although mitochondria have allowed us to adapt to changes over the course of evolution, in turn, evolution has shaped mitochondria. Each evolution-based intervention influences mitochondria in its own way. The use of physiological stress triggers tolerance to the stressor, achieving adaptability and resistance. This review describes strategies that could recover mitochondrial functioning in multiple diseases, providing a comprehensive, root-cause-focused, integrative approach to recovering health and treating people suffering from chronic diseases.
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Affiliation(s)
- Amaloha Casanova
- Department of Physiotherapy, University of Granada, Granada, Spain
- Faculty of Health Sciences, Melilla, Spain
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
| | - Anne Wevers
- Department of Physiotherapy, University of Granada, Granada, Spain
- Faculty of Health Sciences, Melilla, Spain
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
| | - Santiago Navarro-Ledesma
- Department of Physiotherapy, University of Granada, Granada, Spain
- Faculty of Health Sciences, Melilla, Spain
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
| | - Leo Pruimboom
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
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31
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Rahman MH, Jeong ES, You HS, Kim CS, Lee KJ. Redox-Mechanisms of Molecular Hydrogen Promote Healthful Longevity. Antioxidants (Basel) 2023; 12:988. [PMID: 37237854 PMCID: PMC10215238 DOI: 10.3390/antiox12050988] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/07/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
Age-related diseases represent the largest threat to public health. Aging is a degenerative, systemic, multifactorial and progressive process, coupled with progressive loss of function and eventually leading to high mortality rates. Excessive levels of both pro- and anti-oxidant species qualify as oxidative stress (OS) and result in damage to molecules and cells. OS plays a crucial role in the development of age-related diseases. In fact, damage due to oxidation depends strongly on the inherited or acquired defects of the redox-mediated enzymes. Molecular hydrogen (H2) has recently been reported to function as an anti-oxidant and anti-inflammatory agent for the treatment of several oxidative stress and aging-related diseases, including Alzheimer's, Parkinson's, cancer and osteoporosis. Additionally, H2 promotes healthy aging, increases the number of good germs in the intestine that produce more intestinal hydrogen and reduces oxidative stress through its anti-oxidant and anti-inflammatory activities. This review focuses on the therapeutic role of H2 in the treatment of neurological diseases. This review manuscript would be useful in knowing the role of H2 in the redox mechanisms for promoting healthful longevity.
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Affiliation(s)
- Md. Habibur Rahman
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26426, Republic of Korea (C.-S.K.)
| | - Eun-Sook Jeong
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26426, Republic of Korea (C.-S.K.)
| | - Hae Sun You
- Department of Anesthesiology & Pain Medicine, Anam Hospital, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Cheol-Su Kim
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26426, Republic of Korea (C.-S.K.)
| | - Kyu-Jae Lee
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26426, Republic of Korea (C.-S.K.)
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Shaikh SD, Sun N, Canakis A, Park WY, Weber HC. Irritable Bowel Syndrome and the Gut Microbiome: A Comprehensive Review. J Clin Med 2023; 12:jcm12072558. [PMID: 37048642 PMCID: PMC10095554 DOI: 10.3390/jcm12072558] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/10/2023] [Accepted: 03/21/2023] [Indexed: 03/31/2023] Open
Abstract
Irritable Bowel Syndrome (IBS) is a functional disorder of the gastrointestinal tract characterized by abdominal pain and altered bowel habits. It has a prevalence of 10 to 25% in the United States and has a high disease burden, as evidenced by reduced quality of life, decreased work productivity and increased healthcare utilization and costs. IBS has been associated with several intra-intestinal and extra-intestinal conditions, including psychiatric comorbidities. Although the pathophysiology of IBS has not been fully elucidated, it involves dysregulation of communication between the brain and gut (brain–gut axis) which is associated with alterations in intestinal motility, gut permeability, visceral hypersensitivity and gut microbiota composition. The purpose of this article is to review the role the gut microbiota plays in the pathophysiology of IBS, understand factors that affect the gut microbiome and explore the microbiome as a target of treatment.
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33
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Small Intestinal Bacterial Overgrowth and Non-Alcoholic Fatty Liver Disease: What Do We Know in 2023? Nutrients 2023; 15:nu15061323. [PMID: 36986052 PMCID: PMC10052062 DOI: 10.3390/nu15061323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a chronic liver disease associated with the pathological accumulation of lipids inside hepatocytes. Untreated NAFL can progress to non-alcoholic hepatitis (NASH), followed by fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). The common denominator of the above-mentioned metabolic disorders seems to be insulin resistance, which occurs in NAFLD patients. Obesity is the greatest risk factor for lipid accumulation inside hepatocytes, but a part of the NAFLD patient population has a normal body weight according to the BMI index. Obese people with or without NAFLD have a higher incidence of small intestinal bacterial overgrowth (SIBO), and those suffering from NAFLD show increased intestinal permeability, including a more frequent presence of bacterial overgrowth in the small intestine (SIBO). The health consequences of SIBO are primarily malabsorption disorders (vitamin B12, iron, choline, fats, carbohydrates and proteins) and bile salt deconjugation. Undetected and untreated SIBO may lead to nutrient and/or energy malnutrition, thus directly impairing liver function (e.g., folic acid and choline deficiency). However, whether SIBO contributes to liver dysfunction, decreased intestinal barrier integrity, increased inflammation, endotoxemia and bacterial translocation is not yet clear. In this review, we focus on gut–liver axis and discuss critical points, novel insights and the role of nutrition, lifestyle, pre- and probiotics, medication and supplements in the therapy and prevention of both SIBO and NAFLD.
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Chojnacki C, Błońska A, Konrad P, Chojnacki M, Podogrocki M, Poplawski T. Changes in Tryptophan Metabolism on Serotonin and Kynurenine Pathways in Patients with Irritable Bowel Syndrome. Nutrients 2023; 15:nu15051262. [PMID: 36904262 PMCID: PMC10005076 DOI: 10.3390/nu15051262] [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: 01/26/2023] [Revised: 02/20/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
(1) Background: L-tryptophan is a substrate for the synthesis of many biological compounds through the serotonin and kynurenine pathways. These compounds have a significant influence on gastrointestinal functions and mental processes. The aim of the study was to evaluate the urinary excretion of selected tryptophan metabolites in patients with constipation-predominant and diarrhoea-predominant irritable bowel syndrome (IBS-C and IBS-D, respectively), related to somatic and mental symptoms. (2) Methods: 120 people were included in the study and three groups were distinguished, with 40 individuals each, including healthy subjects (controls), patients with IBS-C and patients with IBS-D. The Gastrointestinal Symptoms Rating Scale (GSRS-IBS) was used to assess the severity of abdominal symptoms. The Hamilton Anxiety Rating Scale (HAM-A) and Hamilton Depression Rating Scale (HAM-D) were used to evaluate the mental state of patients. Using liquid chromatography tandem mass spectrometry (LC-MS/MS), L-tryptophan and the following metabolites in urine, related to the creatinine level, were measured: 5-hydroxyindoleacetic acid (5-HIAA), kynurenine (KYN), kynurenic acid (KYNA) and quinolinic acid (QA). (3) Results: In both groups of patients with IBS, changes in tryptophan metabolism were found as compared to the control group. We observed an increase in the activity of the serotonin pathway and a positive correlation between the 5-HIAA level and the GSRS score (p < 0.01) and HAM-A score (p < 0.001) in IBS-D patients. The IBS-C group was characterized by a higher concentration of kynurenines (KYN, QA) in urine. Moreover, the QA (p < 0.001) and KYNA (p < 0.05) levels were correlated with the HAM-D score among IBS-C patients. (4) Conclusions: Various changes in the tryptophan metabolism pathway can determine the differences in the clinical picture of irritable bowel syndrome. These results should be included in the nutritional and pharmacological treatment of this syndrome.
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Affiliation(s)
- Cezary Chojnacki
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland
- Correspondence: (C.C.); (T.P.)
| | - Aleksandra Błońska
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland
| | - Paulina Konrad
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland
| | - Marcin Chojnacki
- Department of Clinical Nutrition and Gastroenterological Diagnostics, Medical University of Lodz, 90-647 Lodz, Poland
| | - Marcin Podogrocki
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Tomasz Poplawski
- Department of Pharmaceutical Microbiology and Biochemistry, Medical University of Lodz, 92-216 Lodz, Poland
- Correspondence: (C.C.); (T.P.)
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35
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Golla R, Vuyyuru S, Kante B, Kumar P, Thomas DM, Makharia G, Kedia S, Ahuja V. Long-term Gastrointestinal Sequelae Following COVID-19: A Prospective Follow-up Cohort Study. Clin Gastroenterol Hepatol 2023; 21:789-796.e1. [PMID: 36273799 PMCID: PMC9584755 DOI: 10.1016/j.cgh.2022.10.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 10/02/2022] [Accepted: 10/11/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Coronavirus disease 2019 (COVID-19) is associated with long-term gastrointestinal sequelae; however, prospective longitudinal data are sparse. We prospectively studied the frequency, spectrum, and risk factors of post infection functional gastrointestinal disorders/disorders of gut-brain interaction (PI-FGID/DGBI) after COVID-19. METHODS Three hundred twenty cases with COVID-19 and 2 control groups, group A, 320 healthy spouses/family controls, and group B, 280 healthy COVID serology-negative controls, were prospectively followed up at 1, 3, and 6 months by using validated Rome IV criteria to evaluate the frequency of PI-FGID/DGBI. RESULTS Of 320 cases, at 1 month 36 (11.3%) developed FGID symptoms. Persistent symptoms were noted in 27 (8.4%) at 3 months and in 21 (6.6%) at 6 months. At 3 months, 8 (2.5%) had irritable bowel syndrome, 7 (2.2%) had functional diarrhea, 6 (1.9%) had functional dyspepsia, 3 (0.9%) had functional constipation, 2 (0.6%) had functional dyspepsia-IBS overlap, and 1 (0.3%) had functional abdominal bloating/distention. Among symptomatic individuals at 3 months, 8 (29.6%) were positive for isolated carbohydrate malabsorption, 1 (3.7%) was positive for post infection malabsorption syndrome, and 1 (3.7%) was positive for intestinal methanogen overgrowth. None of the healthy controls developed FGID up to 6 months of follow-up (P < .01). Predictive factors at 3 and 6 months were severity of infection (P < .01) and presence of gastrointestinal symptoms at the time of infection (P < .01). CONCLUSIONS COVID-19 led to significantly higher number of new onset PI-FGID/DGBI compared with healthy controls at 3 and 6 months of follow-up. If further investigated, some patients can be diagnosed with underlying malabsorption.
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Affiliation(s)
- Rithvik Golla
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Sudheer Vuyyuru
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Bhaskar Kante
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Peeyush Kumar
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India
| | - David Mathew Thomas
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Govind Makharia
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Saurabh Kedia
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India.
| | - Vineet Ahuja
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, New Delhi, India.
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36
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Lim J, Rezaie A. Pros and Cons of Breath Testing for Small Intestinal Bacterial Overgrowth and Intestinal Methanogen Overgrowth. Gastroenterol Hepatol (N Y) 2023; 19:140-146. [PMID: 37706108 PMCID: PMC10496284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Breath testing is the most widely utilized modality to diagnose small intestinal bacterial overgrowth (SIBO) and/or intestinal methanogen overgrowth (IMO). Although SIBO can be diagnosed with small bowel aspiration and breath testing, IMO can only be diagnosed with breath testing in clinical practice. Breath testing can tailor antibiotic therapy and predict response to treatment; however, the test is limited by its indirect method of measurement and concerns about the variability of orocecal transit time. Like any clinical test, breath testing has inherent strengths and limitations, and results must be interpreted with consideration of the clinical context and influencing factors. Recent studies have demonstrated the expanding clinical utility of breath testing in the diagnosis, management, and prediction of treatment response in SIBO and particularly in IMO along with the identification of distinct breath test patterns such as flat-line and high baseline hydrogen. This article reviews the strengths and limitations of breath testing in diagnosing SIBO and IMO as well as its expanding utility in clinical practice.
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Affiliation(s)
- Jane Lim
- GI Motility Program, Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Ali Rezaie
- GI Motility Program, Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
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Maeda Y, Murakami T. Diagnosis by Microbial Culture, Breath Tests and Urinary Excretion Tests, and Treatments of Small Intestinal Bacterial Overgrowth. Antibiotics (Basel) 2023; 12:antibiotics12020263. [PMID: 36830173 PMCID: PMC9952535 DOI: 10.3390/antibiotics12020263] [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: 12/21/2022] [Revised: 01/19/2023] [Accepted: 01/19/2023] [Indexed: 01/31/2023] Open
Abstract
Small intestinal bacterial overgrowth (SIBO) is characterized as the increase in the number and/or alteration in the type of bacteria in the upper gastrointestinal tract and accompanies various bowel symptoms such as abdominal pain, bloating, gases, diarrhea, and so on. Clinically, SIBO is diagnosed by microbial culture in duodenum/jejunum fluid aspirates and/or the breath tests (BT) of hydrogen/methane gases after ingestion of carbohydrates such as glucose. The cultural analysis of aspirates is regarded as the golden standard for the diagnosis of SIBO; however, this is invasive and is not without risk to the patients. BT is an inexpensive and safe diagnostic test but lacks diagnostic sensitivity and specificity depending on the disease states of patients. Additionally, the urinary excretion tests are used for the SIBO diagnosis using chemically synthesized bile acid conjugates such as cholic acid (CA) conjugated with para-aminobenzoic acid (PABA-CA), ursodeoxycholic acid (UDCA) conjugated with PABA (PABA-UDCA) or conjugated with 5-aminosalicylic acid (5-ASA-UDCA). These conjugates are split by bacterial bile acid (cholylglycine) hydrolase. In the tests, the time courses of the urinary excretion rates of PABA or 5-ASA, including their metabolites, are determined as the measure of hydrolytic activity of intestinal bacteria. Although the number of clinical trials with this urinary excretion tests is small, results demonstrated the usefulness of bile acid conjugates as SIBO diagnostic substrates. PABA-UDCA disulfate, a single-pass type unabsorbable compound without the hydrolysis of conjugates, was likely to offer a simple and rapid method for the evaluation of SIBO without the use of radioisotopes or expensive special apparatus. Treatments of SIBO with antibiotics, probiotics, therapeutic diets, herbal medicines, and/or fecal microbiota transplantation are also reviewed.
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Affiliation(s)
- Yorinobu Maeda
- Laboratory of Drug Information Analytics, Faculty of Pharmacy & Pharmaceutical Sciences, Fukuyama University, Sanzou, Gakuen-cho, Fukuyama 729-0292, Hiroshima, Japan
| | - Teruo Murakami
- Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hiro-koshingai, Kure 737-0112, Hiroshima, Japan
- Correspondence: ; Tel.: +81-82-872-4310
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Yao C, Li Y, Luo L, Xie F, Xiong Q, Li T, Yang C, Feng PM. Significant Differences in Gut Microbiota Between Irritable Bowel Syndrome with Diarrhea and Healthy Controls in Southwest China. Dig Dis Sci 2023; 68:106-127. [PMID: 35503487 DOI: 10.1007/s10620-022-07500-0] [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: 09/24/2021] [Accepted: 03/24/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is a heterogeneous disease, which is closely related to environmental factors and gut microbiota. OBJECTIVE To study gut microbiota in IBS-D of Han nationality in Southwest China and explore its relationship with environmental factors. METHODS One hundred and twenty cases of IBS-D and 63 cases of HCs were recruited; baseline data such as age, height, and weight were collected. HAMA, HAMD, IBS-SSS, IBS-QOL, and laboratory tests were performed. Feces were collected for 16S rDNA sequencing. Then, the differences of gut microbiota were analyzed and looked for biomarkers of each. FAPROTAX was used to predict the functional differences of gut microbiota. Spearman analysis was conducted between the phylum level and environmental factor. RESULTS There were significant differences in daily life between IBS-D and HCs, especially in the spicy taste. The scores of HAMA and HAMD, urea, and transaminase in IBS-D were significantly higher than those of HCs. The richness of gut microbiota in IBS-D was significantly lower than that of HCs, as well as the beta diversity, but not diversity. The biomarkers of IBS-D were Prevotella, Clostridiales, and Roseburia, and the biomarkers of HCs were Veillonellaceae, Bacteroides coprocola, and Bifidobacteriales. The functions of gut microbiota in IBS-D were significantly different from HCs. Correlation analysis showed that multiple gut microbiota were closely related to HAMA, IBS-SSS, IBS-QOL, inflammatory indexes, and liver enzymes. CONCLUSION There are significant differences in richness of gut microbiota, flora structure, and flora function between IBS-D and HCs in Southwest China. These differences may be closely related to environmental factors such as eating habits, living habits, and mental and psychological factors. CLINICAL TRIAL REGISTRATION The trial was registered and approved in China Clinical Trial Registry (Registration No. ChiCTR2100045751).
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Affiliation(s)
- Chengjiao Yao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China.,Department of Geriatrics of the Affiliated Hospital, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yilin Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China.,North Sichuan Medical College, Nanchong, Sichuan, China
| | - Lihong Luo
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China
| | - Fengjiao Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China
| | - Qin Xiong
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China
| | - Tinglin Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China
| | - Chunrong Yang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China
| | - Pei-Min Feng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610000, Sichuan, China.
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Dong C, Wang G, Xian R, Li C, Wang S, Cui L. Association between Small Intestinal Bacterial Overgrowth and Subclinical Atheromatous Plaques. J Clin Med 2022; 12:jcm12010314. [PMID: 36615114 PMCID: PMC9821204 DOI: 10.3390/jcm12010314] [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: 11/24/2022] [Revised: 12/09/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Background: Several recent studies have reported the relationship between atherosclerosis and gut microbial imbalance. Small intestinal bacterial overgrowth (SIBO) is one of the most common forms of gut microbiota imbalance, and studies have shown that SIBO plays an important role in human health. However, the relationship between SIBO and subclinical atheromatous plaques remains unclear. The aim of this study was to investigate the frequency of subclinical atheromatous plaques in patients with SIBO and to explore the association between these two conditions. Methods: A total of 411 eligible subjects were included in this study. The lactulose hydrogen-methane breath test was used to diagnose SIBO, and ultrasound examinations of the carotid, abdominal aorta and lower extremity arteries were performed in all subjects to assess the presence of plaques. Results: Plaques were more common in the SIBO-positive group than in the SIBO-negative group (abdominal aorta, 74.2% vs. 38.8%, p < 0.01; carotid arteries, 71.7% vs. 52.3, p < 0.01; lower extremity arteries, 73.4% vs. 57.6%, p < 0.01). After adjusting for traditional confounders, compared to the SIBO-negative population, the SIBO-positive population had, respectively, OR = 4.18 (95% CI = 2.56−6.80, p < 0.001), OR = 1.93 (95% CI = 1.23−3.02, p = 0.004), OR = 1.81 (95% CI = 1.14−2.88, p = 0.011) and OR = 5.42 (95% CI = 2.78−10.58, p < 0.001) for abdominal, carotid, lower extremity and any-territory plaque presence. Conclusion: SIBO was found to be associated with subclinical atheromatous plaques, and the mechanism of this association warrants further exploration.
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Affiliation(s)
- Changhao Dong
- Department of Gastroenterology, School of Medicine, South China University of Technology, Guangzhou 510006, China
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing 100048, China
| | - Guangxiang Wang
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing 100048, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Rui Xian
- Department of Gastroenterology, School of Medicine, South China University of Technology, Guangzhou 510006, China
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing 100048, China
| | - Chao Li
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing 100048, China
| | - Shaoxin Wang
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing 100048, China
| | - Lihong Cui
- Department of Gastroenterology, School of Medicine, South China University of Technology, Guangzhou 510006, China
- Department of Gastroenterology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing 100048, China
- Correspondence:
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Kossewska J, Bierlit K, Trajkovski V. Personality, Anxiety, and Stress in Patients with Small Intestine Bacterial Overgrowth Syndrome. The Polish Preliminary Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:93. [PMID: 36612414 PMCID: PMC9819554 DOI: 10.3390/ijerph20010093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
OBJECTIVE Small intestinal bacterial overgrowth (SIBO) syndrome is associated with depression and anxiety. This study aimed to examine for the first time the correlation between personality traits, situational anxiety, and stress in Polish patients with SIBO. METHODOLOGY This study included 26 patients with SIBO aged 20-35 years and 24 non-SIBO patients aged 20-35 years. The following instruments were used: NEO-FFI Personality Inventory, KPS Sense of Stress Questionnaire, and the anxiety-state subscale from the State-Trait Anxiety Inventory (STAI). RESULTS Compared to the non-SIBO subgroup, SIBO patients expressed specific patterns of personality traits: higher neuroticism, lower extroversion, and a higher state of anxiety and stress. Unlike the non-SIBO subgroup, stress (total emotional tension, external, and intrapsychic) correlated negatively only with extroversion. CONCLUSIONS Personality is the primary regulator of experience and behavior. The specificity captured in the research is a premise for an in-depth study considering various psychological variables to determine cause-effect relationships.
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Affiliation(s)
- Joanna Kossewska
- Institute of Special Education, School Education and Teachers Education, Pedagogical University of Krakow, 30-084 Kraków, Poland
| | - Karolina Bierlit
- Student Scientific Club of Supporting People with Autism, Pedagogical University of Krakow, 30-084 Kraków, Poland
| | - Vladimir Trajkovski
- Macedonian Scientific Society for Autism, Institute of Special Education and Rehabilitation, Faculty of Philosophy, Ss. Cyril & Methodius University in Skopje, 1000 Skopje, North Macedonia
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Xu Y, Xu H, Wang X, Wen H, Guan H, Gao F, Xu H, Jing W, Li J, Mei Y, Li W, Chen Q, Liu F, Cui H. Network-Based Elaboration of the Efficacy of the Dachangshu (BL25) and Tianshu (ST25) Points in the Treatment of Functional Constipation in Children through Inflammation, Adipocytokine, or Leptin Pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:5315927. [PMID: 36523422 PMCID: PMC9747304 DOI: 10.1155/2022/5315927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 08/04/2022] [Accepted: 09/08/2022] [Indexed: 10/10/2023]
Abstract
Constipation commonly occurs during childhood, and more than 95% of cases are classified as functional constipation. If not effectively treated, 20% of patients with childhood constipation can continue to exhibit symptoms into adulthood, which seriously affects their mental health and quality of life. The main feature of acupuncture or acupoint stimulation, a special branch of traditional Chinese medicine, is the selection of different acupoints for different diseases, and many worthy guidelines have been established for matching acupoints. The back-shu and front-mu point combination adheres to an important acupoint compatibility law that has been used since its proposal 2,500 years ago but has not yet been verified by the modern evidence-based experiments. This study focused on the back-shu and front-mu point combination using the Dachangshu (BL25) and Tianshu (ST25) points as examples to explore possible research methods for network acupoint-based stimulation based on existing evidence and to elucidate the mechanisms induced by BL25 and ST25 in the treatment of functional constipation in children (FCC). The study found that BL25 and ST25 have 20 common targets, namely, AQP8, DRD2, VIP, TAC1, IL6R, TNF, FOS, KIT, CHAT, HTR3A, GAS8, SOD3, TRPV1, MPO, CALCA, IL1B, P2RX7, NPY2R, IL10RA, and TPH1, and these targets may provide a strategy for the combined usage of BL25 and ST25. In addition, BL25 and ST25 can affect FCC treatment through inflammation-relatedTh17-cell differentiation, the NF-kappa B signaling pathway, and the Toll-like receptor signaling pathway. Adipocytokines or leptin may also comprise the mechanism through which BL25 and ST25 regulate FCC. In addition, BL25 and ST25 regulate FCC through 13 core targets, namely, NFKBIA, RELA, TNF, IKBKB, IRAK1, TLR4, MYD88, TNFRSF1A, IL1R1, TLR2, IL1B, TRAF6, and TNFRSF1B. In short, this study provides new ideas and methods for studying the mechanism of acupuncture points.
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Affiliation(s)
- Yan Xu
- School of Pediatrics, Henan University of Chinese Medicine, Zhengzhou, Henan 450000, China
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan 450000, China
| | - Hanying Xu
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Xinna Wang
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Hongjuan Wen
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Huifang Guan
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Fa Gao
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Hang Xu
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Wei Jing
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Jing Li
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Yan Mei
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Weibin Li
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Qixiong Chen
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Fang Liu
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Hongtao Cui
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
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Min YW, Rezaie A, Pimentel M. Bile Acid and Gut Microbiota in Irritable Bowel Syndrome. J Neurogastroenterol Motil 2022; 28:549-561. [PMID: 36250362 PMCID: PMC9577585 DOI: 10.5056/jnm22129] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 08/31/2022] [Indexed: 01/18/2023] Open
Abstract
Gut microbiota and their metabolites like bile acid (BA) have been investigated as causes of irritable bowel syndrome (IBS) symptoms. Primary BAs are synthesized and conjugated in the liver and released into the duodenum. BA biotransformation by gut microbiota begins in the intestine and results in production of a broad range of secondary BAs. Deconjugation is considered the gateway reaction for further modification and is mediated by bile salt hydrolase, which is widely expressed by the gut microbiota. However, gut bacteria that convert primary BAs to secondary BAs belong to a limited number of species, mainly Clostridiales. Like gut microbiota modify BA profile, BAs can shape gut microbiota via direct and indirect actions. BAs have prosecretory effects and regulates gut motility. BAs can also affect gut sensitivity. Because of the vital role of the gut microbiota and BAs in gut function, their bidirectional relationship may contribute to the pathophysiology of IBS. Individuals with IBS have been reported to have altered microbial profiles and modified BA profiles. A significant increase in fecal primary BA and a corresponding decrease in secondary BA have been observed in IBS with predominant diarrhea. In addition, primary BA was positively correlated with IBS symptoms. In IBS with predominant diarrhea, bacteria with reduced abundance mainly belonged to the genera in Ruminococcaceae and exhibited a negative correlation with primary BAs. Integrating the analysis of the gut microbiota and BAs could better understanding of IBS pathophysiology. The gap in this field needs to be further filled in the future.
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Affiliation(s)
- Yang Won Min
- Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA.,Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ali Rezaie
- Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA.,Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai, Los Angeles, CA, USA
| | - Mark Pimentel
- Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA.,Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai, Los Angeles, CA, USA
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Helichrysum italicum (Roth) G. Don and Helichrysum arenarium (L.) Moench Infusion Consumption Affects the Inflammatory Status and the Composition of Human Gut Microbiota in Patients with Traits of Metabolic Syndrome: A Randomized Comparative Study. Foods 2022. [PMCID: PMC9601527 DOI: 10.3390/foods11203277] [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] [Indexed: 11/17/2022] Open
Abstract
Helichrysum italicum (Roth) G. Don (HI) and Helichrysum arenarium (L.) Moench (HA) are rich in polyphenols and their infusions have beneficial effects for patients with metabolic syndrome. To investigate whether these effects are mediated by the gut microbiota, we analysed the effects of daily consumption of HI or HA infusion on the composition of gut microbiota, inflammatory status, and zonulin, a marker of gut barrier permeability. The study was a randomized, double-blind comparative trial. Thirty participants were randomly assigned to two groups and received either HA or HI tea filter bags, each containing 1 g of dried plant material, for daily consumption lasting 4 weeks. The results show that consumption of both infusions resulted in a reduction of some genera belonging to Firmicutes and in a slight but significant reduction in Shannon diversity index. Consumption of HI infusion significantly reduced serum levels of proinflammatory markers and zonulin alongside with the observed trend of Proteobacteria reduction. It can therefore be concluded that the HI and HA infusions could act as prebiotics and thus improve the intestinal environment. In addition, HI infusion has a positive impact on microbial dysbiosis and gut barrier dysfunction that occur in obesity and metabolic syndrome.
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Hepatic Encephalopathy in Cirrhotic Patients and Risk of Small Intestinal Bacterial Overgrowth: A Systematic Review and Meta-Analysis. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2469513. [PMID: 36303585 PMCID: PMC9596239 DOI: 10.1155/2022/2469513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/23/2022]
Abstract
Background Hepatic encephalopathy (HE) is a neurological and psychiatric syndrome. Recent evidence suggests that HE is not only a disease of the liver and brain but is also related to the gut. Small intestinal bacterial overgrowth (SIBO) is well known to be associated with cirrhosis, but the relationship between SIBO and HE is unclear. We conducted this comprehensive systematic review and meta-analysis to determine the association between SIBO and HE in cirrhotic patients. Methods We conducted a comprehensive literature search of all studies on the association of SIBO and HE in cirrhotic patients using the PubMed and Embase electronic databases. Studies were screened, and relevant data were extracted and analysed. We calculated the number of cases of SIBO in patients with HE and controls. We then compared the prevalence of SIBO between the two groups to calculate the odds ratios (ORs) and 95% confidence intervals (CIs). Funnel plots were constructed to identify potential publication bias. Results Six studies with 414 participants (219 HE patients and 195 controls) met the inclusion criteria. The prevalence of SIBO in cirrhotic patients with HE was significantly higher than that in those without HE. The combined OR was 4.43 (95% CI 1.73-11.32, P = 0.002). The heterogeneity was moderate (I2 = 66%), and the funnel plot suggested no significant publication bias. Subgroup analysis showed that the OR was 1.95 (95% CI 0.63–6.09) in studies using the lactulose breath test (LBT) and 7.60 (95% CI 3.50–16.50) in studies using the glucose breath test (GBT). The prevalence of SIBO in cirrhotic patients was also related to the severity of liver disease. Conclusions Our meta-analysis identified a strong association between SIBO and HE, and the risk of SIBO was 4.43 times higher among cirrhotic patients with HE than among those without HE. SIBO could be a predisposing factor for the development of HE in cirrhotic patients. Therefore, the importance of SIBO should be emphasized in patients with HE.
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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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Khan MZ, Lyu R, McMichael J, Gabbard S. Chronic Intestinal Pseudo-Obstruction Is Associated with Intestinal Methanogen Overgrowth. Dig Dis Sci 2022; 67:4834-4840. [PMID: 35001241 DOI: 10.1007/s10620-021-07343-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 11/22/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Chronic intestinal pseudo-obstruction (CIP) is a rare motility disorder characterized by dilated small bowel in the absence of mechanical obstruction. CIP has a known association with small intestinal bacterial overgrowth (SIBO); however, data regarding association with specific subtypes such as methane-positive (M+) and hydrogen-positive (H+) SIBO are limited. Therefore, we conducted this study to characterize subtypes of SIBO in CIP and compare them with non-CIP patients. AIMS The aim is to explore the association and prevalence of hydrogen and methane subtypes of SIBO in patients with CIP. METHODS A retrospective chart review was conducted for 494 patients who underwent glucose breath tests (GBT) in 2019. CIP was diagnosed based on clinical suspicion and after ruling out mechanical obstruction. We also reviewed demographic data, including age, gender, body mass index, tobacco and alcohol history, medical comorbidities, use of proton pump inhibitors, and history of colectomy. RESULTS Among 494 patients, 7.7% (38) had CIP. The prevalence of M+ GBT in CIP patients was higher compared with non-CIP patients, and it was significant [52.6% (20/38) versus 11.8% (54/456), p < 0.001]. The prevalence of H+ GBT in our cohort of CIP patients was similar to that of non-CIP patients [23.7% (9/38) versus 25.7% (117/456), p = 0.941]. CONCLUSION The prevalence of methane-positive GBT was higher in CIP patients than in patients without CIP. This finding further strengthens the hypothesis that the relationship between motility disorders and methanogen overgrowth is facilitative.
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Affiliation(s)
| | - Ruishen Lyu
- Department of Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - John McMichael
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Scott Gabbard
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
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Salwen-Deremer JK, Ballou S. Painful GI Conditions and Their Bidirectional Relationships with Sleep Disturbances. CURRENT SLEEP MEDICINE REPORTS 2022. [DOI: 10.1007/s40675-022-00230-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Xie QQ, Wang JF, Zhang YF, Xu DH, Zhou B, Li TH, Li ZP. Glucose substrate in the hydrogen breath test for gut microbiota determination: A recommended noninvasive test. World J Clin Cases 2022; 10:9536-9538. [PMID: 36159421 PMCID: PMC9477675 DOI: 10.12998/wjcc.v10.i26.9536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/06/2022] [Accepted: 08/06/2022] [Indexed: 02/05/2023] Open
Abstract
Intestinal dysbiosis and small intestinal bacterial overgrowth (SIBO) are common in patients with liver cirrhosis. Existing studies have not explored the association between gut dysbiosis and SIBO. We propose some suggestions for the authors’ experimental methods and concepts, and we hope these suggestions can be adopted. The hydrogen breath test is worthy of recommendation due to its high accuracy and convenient operation. We suggest changing the substrate of the hydrogen breath test from lactulose to glucose to improve the accuracy of each parameter. SIBO is a small subset of gut dysbiosis, and we propose clarifying the concept of both. SIBO may be caused by liver cirrhosis or one of the pathogeneses of gastrointestinal diseases. Therefore, interference from other gastrointestinal diseases should be excluded from this study.
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Affiliation(s)
- Qi-Qi Xie
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Jia-Feng Wang
- Town Hospital of Gaodu, Mengyin County, Linyi 276200, Shandong Province, China
| | - Yang-Fen Zhang
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Dong-Hui Xu
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Bo Zhou
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Ting-Hui Li
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Zhi-Peng Li
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
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Updates and Caveats to Breath Testing for Intestinal Overgrowth. Am J Gastroenterol 2022; 117:1390-1393. [PMID: 35642082 DOI: 10.14309/ajg.0000000000001841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/27/2022] [Indexed: 12/11/2022]
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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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