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Small Intestine Bacteria Overgrowth

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https://www.readbyqxmd.com/read/29034439/low-grade-small-intestinal-bacterial-overgrowth-is-common-in-patients-with-non-alcoholic-steatohepatitis-on-quantitative-jejunal-aspirate-culture
#1
Uday C Ghoshal, Chalamalasetty Sreenivasa Baba, Ujjala Ghoshal, George Alexander, Asha Misra, Vivek A Saraswat, Gourdas Choudhuri
BACKGROUND: Though pathogenesis of non-alcoholic steatohepatitis (NASH) is unclear, association with small intestinal bacterial overgrowth [SIBO] and fecal dysbiosis is suggested. We evaluated SIBO in NASH using quantitative jejunal aspirate culture (conventional criteria: ≥ 10(5) colony forming unit (CFU)/mL and newer cutoff ≥ 10(3) CFU/mL) and glucose hydrogen breath test. METHODS: Thirty-eight patients with NASH (age 37.5 years, range 20-54, 9, 24% female), diagnosed by ultrasonography, alanine aminotransferase >1...
October 16, 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/28936406/gut-microbiome-based-therapeutics-in-liver-cirrhosis-basic-consideration-for-the-next-step
#2
REVIEW
Hiroshi Fukui
Infections account for significant morbidity and mortality in liver cirrhosis and most are related to the gut microbiome. Fecal dysbiosis, characterized by an overgrowth of potentially pathogenic bacteria and a decrease in autochthonous non-pathogenic bacteria, becomes prominent with the progression of liver cirrhosis. In cirrhotic patients, disruption of the intestinal barrier causes intestinal hyperpermeability (i.e. leaky gut), which is closely related to gut dysmotility, dysbiosis and small intestinal bacterial overgrowth and may induce pathological bacterial translocation...
September 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28918634/engineered-probiotic-for-the-inhibition-of-salmonella-via-tetrathionate-induced-production-of-microcin-h47
#3
Jacob D Palmer, Emma Piattelli, Beth A McCormick, Mark W Silby, Christopher J Brigham, Vanni Bucci
Complications arising from antibiotic-resistant bacteria are becoming one of the key issues in modern medicine. Members of drug-resistant Enterobacteriaceae spp. include opportunistic pathogens (e.g., Salmonella spp.) that are among the leading causes of morbidity and mortality worldwide. Overgrowth of these bacteria is considered a hallmark of intestinal dysbiosis. Microcins (small antimicrobial peptides) produced by some gut commensals can potentially cure these conditions by inhibiting these pathogens and have been proposed as a viable alternative to antibiotic treatment...
September 20, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28818267/is-small-intestinal-bacterial-overgrowth-involved-in-the-pathogenesis-of-functional-dyspepsia
#4
Georgios Tziatzios, Evangelos J Giamarellos-Bourboulis, Ioannis S Papanikolaou, Mark Pimentel, George D Dimitriadis, Konstantinos Triantafyllou
Functional dyspepsia is a highly prevalent disease, with significant impacts on patients' quality of life and economic robustness of health care systems worldwide. It constitutes a constellation of symptoms located in the gastro duodenal region while its pathogenesis remains poorly understood. Accumulating evidence suggest that small intestinal bacterial overgrowth is associated with the etiology of functional gastrointestinal disorders. We herein present the hypothesis that a causal link between small intestinal bacterial overgrowth and functional dyspepsia might exist...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28744287/ccr6-deficiency-impairs-iga-production-and-dysregulates-antimicrobial-peptide-production-altering-the-intestinal-flora
#5
Ya-Lin Lin, Peng-Peng Ip, Fang Liao
Intestinal immunity exists as a complex relationship among immune cells, epithelial cells, and microbiota. CCR6 and its ligand-CCL20 are highly expressed in intestinal mucosal tissues, such as Peyer's patches (PPs) and isolated lymphoid follicles (ILFs). In this study, we investigated the role of the CCR6-CCL20 axis in intestinal immunity under homeostatic conditions. CCR6 deficiency intrinsically affects germinal center reactions in PPs, leading to impairments in IgA class switching, IgA affinity, and IgA memory B cell production and positioning in PPs, suggesting an important role for CCR6 in T-cell-dependent IgA generation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28679338/reduced-interstitial-cells-of-cajal-and-increased-intraepithelial-lymphocytes-are-associated-with-development-of-small-intestinal-bacterial-overgrowth-in-post-infectious-ibs-mouse-model
#6
Binrui Chen, Shuwen Zhu, Lijun Du, Huiqin He, John J Kim, Ning Dai
OBJECTIVE: Intestinal dysmotility and immune activation are likely involved in the pathogenesis of small intestinal bacteria overgrowth (SIBO) in irritable bowel syndrome (IBS). We aimed at investigating the role of interstitial cells of Cajal (ICC) and intestinal inflammation in the development of SIBO using a post-infectious IBS (PI-IBS) mouse model. MATERIALS AND METHODS: NIH mice were randomly infected with Trichinella spiralis. Visceral sensitivity and stool pattern were assessed at 8-weeks post-infection (PI)...
July 5, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28646815/integrative-treatment-of-chronic-abdominal-bloating-and-pain-associated-with-overgrowth-of-small-intestinal-bacteria-a-case-report
#7
Laura Kwiatkowski, Elizabeth Rice, Jeffrey Langland
Context • Small intestinal bacterial overgrowth (SIBO) is commonly defined as an increased number of bacteria and/or an abnormal type of bacteria in the small intestine. Conventional treatment for SIBO is typically focused on antibiotics to eradicate the bacterial overgrowth. Numerous studies have demonstrated the antimicrobial activity of herbs, and a diet low in fermentable oligo-, di-, and monosaccharides and polyols (FODMAPs) has been shown to enhance antibiotic therapy. Objective • The current case study intended to evaluate the benefits of an alternative, multifaceted approach-including botanical and homeopathic therapies in conjunction with a low-FODMAP diet-in the treatment of SIBO and its associated symptoms...
July 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28498296/interleukin-22-prevents-microbial-dysbiosis-and-promotes-intestinal-barrier-regeneration-following-acute-injury
#8
Adam M Hammer, Niya L Morris, Abigail R Cannon, Omair M Khan, Robin C Gagnon, Nellie V Movtchan, Ilse van Langeveld, Xiaoling Li, Bin Gao, Mashkoor A Choudhry
Intestine barrier disruption and bacterial translocation can contribute to sepsis and multiple organ failure- leading causes of mortality in burn-injured patients. Additionally, findings suggest ethanol (alcohol) intoxication at the time of injury worsens symptoms associated with burn injury. We have previously shown that interleukin-22 (IL-22) protects from intestinal leakiness and prevents overgrowth of Gram-negative bacteria following ethanol and burn injury, but how IL-22 mediates these effects has not been established...
May 11, 2017: Shock
https://www.readbyqxmd.com/read/28240004/gut-microbiota-and-pancreatic-diseases
#9
Marianna Signoretti, Roberta Roggiolani, Caterina Stornello, Gianfranco Delle Fave, Gabriele Capurso
Changes in diet, lifestyle, and exposure to environmental risk factors account for the increased incidence of pancreatic disorders, including acute and chronic pancreatitis, and pancreatic cancer. The role of the microbiota in the development of pancreatic disorders is increasingly acknowledged. The translocation of gut bacteria and endotoxins following gut barrier failure is a key event contributing to the severity of acute pancreatitis, while small intestine bacterial overgrowth is common in patients with chronic pancreatitis and further worsens their symptoms and malnutrition...
December 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28164845/small-intestinal-bacterial-overgrowth-and-other-intestinal-disorders
#10
REVIEW
Uday C Ghoshal, Ujjala Ghoshal
Gut microbiota is the largest organ of the human body. Although growth of bacteria more than 10(5) colony forming unit (CFU) per milliliter in culture of upper gut aspirate is used to diagnosis small intestinal bacterial overgrowth (SIBO), 10(3) CFU or more is being considered to suggest the diagnosis, particularly if colonic type bacteria are present in the upper gut. Although neither very sensitive nor specific, hydrogen breath tests are widely used to diagnose SIBO. Rifaximin is the best treatment for SIBO due to its broad spectrum, lack of systemic absorption, and safety profile...
March 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/28134688/progress-with-treating-the-microbial-dysbiosis-associated-with-irritable-bowel-syndrome
#11
James S Pearson, Peter J Whorwell
PURPOSE OF REVIEW: Microbial dysbiosis is receiving increasing attention as possibly being important in the pathophysiology of irritable bowel syndrome. This review will summarize the most recent literature addressing attempts to explore and target the microbiome in patients with irritable bowel syndrome. RECENT FINDINGS: Manipulation of the intestinal microbiota in irritable bowel syndrome is receiving increasing attention. Traditionally, dietary manipulation has been utilized...
January 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28078798/systematic-review-with-meta-analysis-rifaximin-is-effective-and-safe-for-the-treatment-of-small-intestine-bacterial-overgrowth
#12
REVIEW
L Gatta, C Scarpignato
BACKGROUND: Small intestinal bacterial overgrowth (SIBO) is a heterogeneous syndrome, characterised by an increased number and/or abnormal type of bacteria in the small bowel. Over the past decades, rifaximin has gained popularity for this indication despite its use is not evidence based. AIM: To perform a systematic review and meta-analysis to summarise evidence about the efficacy and safety of rifaximin to eradicate SIBO in adult patients. METHODS: MEDLINE, EMBASE, CCRCT, Scopus and Web of Science were searched from inception to March 16, 2015 for RCTs and observational studies...
March 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28030512/short-article-risk-of-small-intestinal-bacterial-overgrowth-with-chronic-use-of-proton-pump-inhibitors-in-children
#13
Kristen Cares, Namir Al-Ansari, Suhasini Macha, Najeeb Zoubi, Hazim Zaghloul, Ron Thomas, Patricia Lalinsky, Mohammad El-Baba
BACKGROUND: Some theorize that prolonged use of proton pump inhibitors (PPIs) may increase the risk of small intestinal bacterial overgrowth (SIBO). Chronic acid suppression and resultant hypochlorhydria may lead to an altered intraluminal environment, which, in turn, may promote the growth of bacteria in the small intestine. A handful of studies measured the risk of SIBO in adults taking PPIs and obtained mixed results; however, this risk has not been exclusively measured in children...
April 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27895414/hepatic-encephalopathy-ever-closer-to-its-big-bang
#14
REVIEW
Pablo A Souto, Ariel R Marcotegui, Lisandro Orbea, Juan Skerl, Juan Carlos Perazzo
Hepatic encephalopathy (HE) is a neuropsychiatric disorder that commonly complicates the course of patients with liver disease. Despite the fact that the syndrome was probably first recognized hundreds of years ago, the exact pathogenesis still remains unclear. Minimal hepatic encephalopathy (MHE) is the earliest form of HE and is estimated to affect more that 75% of patients with liver cirrhosis. It is characterized by cognitive impairment predominantly attention, reactiveness and integrative function with very subtle clinical manifestations...
November 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27652124/is-it-bowel-associated-dermatosis-arthritis-syndrome-induced-by-small-intestinal-bacteria-overgrowth
#15
Hongjun Zhao, Lijuan Zhao, Wei Shi, Hui Luo, Liping Duan, Yunhui You, Yisha Li, Xiaoxia Zuo
INTRODUCTION: Bowel-associated dermatosis-arthritis syndrome is rare systemic diseases characterized by a prodrome of fever, chills, and influenza-like symptoms with subsequent skin eruptions, myalgias, and polyarthralgias. It is reported to be occurred in Intestinal bypass surgery and inflammatory bowel disease. CASE DESCRIPTION: Herein, we described a 29-years-old man with Bowel-associated dermatosis-arthritis syndrome. He had no history of gastrointestinal surgery and inflammatory bowel disease...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27607915/ischemia-reperfusion-injury-alters-sphingolipid-metabolism-in-the-gut
#16
Richard S Hoehn, Aaron P Seitz, Peter L Jernigan, Erich Gulbins, Michael J Edwards
BACKGROUND: Intestinal ischemia/reperfusion injury (I/R) is a significant cause of morbidity and mortality in surgical patients. Ceramide is a mediator of apoptosis and has been implicated as increasing bacterial infection susceptibility. The metabolite of ceramide, sphingosine, was recently shown to play an important role in the cell-autonomous, innate immune response of the upper respiratory tract by killing bacterial pathogens. The role of ceramide and/or sphingosine after mesenteric I/R is unknown...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27547007/use-of-rifaximin-in-gastrointestinal-and-liver-diseases
#17
REVIEW
Rani H Shayto, Rachel Abou Mrad, Ala I Sharara
Rifaximin is a broad spectrum oral antibiotic with antimicrobial activity against Gram-positive and Gram-negative aerobic and anaerobic bacteria. It is poorly absorbed and thus has a highly favorable safety profile. Rifaximin has been shown to be effective in the treatment of traveler's diarrhea, functional bloating and irritable bowel syndrome, small bowel bacterial overgrowth and in the prevention of recurrent overt hepatic encephalopathy. In addition, there is emerging evidence for a possible beneficial effect of rifaximin in the treatment of uncomplicated diverticular disease and in the prevention of recurrent diverticulitis...
August 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27331205/clinical-value-of-radionuclide-small-intestine-transit-time-measurement-combined-with-lactulose-hydrogen-breath-test-for-the-diagnosis-of-bacterial-overgrowth-in-irritable-bowel-syndrome
#18
Yanli Ning, Cen Lou, Zhongke Huang, Dongfang Chen, Huacheng Huang, Liang Chen, Bucheng Zhang, Ning Dai, Jianmin Zhao, Xia Zhen
OBJECTIVE: Small intestine bacterial overgrowth (SIBO) may be a pathogenetic factor for irritable bowel syndrome (IBS). This syndrome cannot be explained by structural abnormalities and has no specific diagnostic laboratory tests or biomarkers. We studied quantitatively and semi-quantitatively, using lactulose hydrogen breath test (LHBT), small intestinal transit time (SITT) (99m)technetium-diethylene triamine pentaacetic acid ((99m)Tc-DTPA) in order to examine the mobility of small intestine as an indication of bacterial overgrowth in patients...
May 2016: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27308646/small-intestinal-bacterial-overgrowth-is-associated-with-non-alcoholic-fatty-liver-disease
#19
Andrea Fialho, Andre Fialho, Prashanthi Thota, Arthur J McCullough, Bo Shen
BACKGROUND: Changes in gut bacteria play a role in type 2 diabetes mellitus (DM) and hepatic steatosis. There is a lack of studies evaluating the frequency and risk factors for non-alcoholic fatty liver disease (NAFLD) in patients tested for small intestinal bacterial overgrowth (SIBO). AIM: To evaluate the frequency of NAFLD and associated risk factors in patients tested for SIBO. METHODS: In this case-control study, 372 eligible patients submitted to glucose hydrogen/methane breath test for SIBO who also had an abdominal imaging study were included...
June 2016: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/27163246/hydrogen-sulphide-in-exhaled-breath-a-potential-biomarker-for-small-intestinal-bacterial-overgrowth-in-ibs
#20
Gourab Dutta Banik, Anulekha De, Suman Som, Subhra Jana, Sunil B Daschakraborty, Sujit Chaudhuri, Manik Pradhan
There is a pressing need to develop a novel early-detection strategy for the precise evolution of small intestinal bacterial overgrowth (SIBO) in irritable bowel syndrome (IBS) patients. The current method based on a hydrogen breath test (HBT) for the detection of SIBO is highly controversial. HBT has many limitations and drawbacks. It often fails to indentify SIBO when IBS individuals have 'non-hydrogen-producing' colonic bacteria. Here, we show that hydrogen sulphide (H2S) in exhaled breath is distinctly altered for diarrhea-predominant IBS individuals with positive and negative SIBO by the activity of intestinal sulphate-reducing bacteria...
May 10, 2016: Journal of Breath Research
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