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https://www.readbyqxmd.com/read/30026921/the-gut-microbiome-and-irritable-bowel-syndrome
#1
REVIEW
Stacy Menees, William Chey
Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal disorders encountered in clinical practice. It is a heterogeneous disorder with a multifactorial pathogenesis. Recent studies have demonstrated that an imbalance in gut bacterial communities, or "dysbiosis", may be a contributor to the pathophysiology of IBS. There is evidence to suggest that gut dysbiosis may lead to activation of the gut immune system with downstream effects on a variety of other factors of potential relevance to the pathophysiology of IBS...
2018: F1000Research
https://www.readbyqxmd.com/read/30009817/rome-foundation-working-team-report-on-post-infection-irritable-bowel-syndrome
#2
Giovanni Barbara, Madhusudan Grover, Premysl Bercik, Maura Corsetti, Uday C Ghoshal, Lena Ohman, Mirjana Rajilić-Stojanović
BACKGROUND & AIMS: The existence of post-infection irritable bowel syndrome (PI-IBS) has been substantiated by epidemiology studies conducted in diverse geographic and clinical settings. However, the available evidence has not been well summarized and there is little guidance for diagnosis and treatment of PI-IBS. The ROME Foundation has produced a working team report was to summarize the available evidence on the pathophysiology of PI-IBS and provide guidance for diagnosis and treatment, based upon findings reported in the literature and clinical experience...
July 12, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29935865/the-gut-microbiome-and-irritable-bowel-syndrome-state-of-art-review
#3
REVIEW
Ahmed E Salem, Rajdeep Singh, Younan K Ayoub, Ahmed M Khairy, Gerard E Mullin
Irritable bowel syndrome (IBS) is a functional disorder of the gastrointestinal tract, the physiology of which is not very well understood. There are multiple factors and pathways involved in pathogenesis of this entity. Among all, dysmotility, dysregulation of the brain-gut axis, altered intestinal microbiota and visceral hypersensitivity play a major role. Over the last years, research has shown that the type of gut microbiome present in an individual plays a significant role in the pathophysiology of IBS...
June 20, 2018: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/29915224/characteristics-of-the-bacterial-microbiome-in-association-with-common-intestinal-parasites-in-irritable-bowel-syndrome
#4
Laura Rindom Krogsgaard, Lee O 'Brien Andersen, Thor Bech Johannesen, Anne Line Engsbro, Christen Rune Stensvold, Henrik Vedel Nielsen, Peter Bytzer
OBJECTIVE: A low prevalence of intestinal parasites has been identified in individuals with irritable bowel syndrome (IBS), but potential associations with alterations in the bacterial microbiome remain largely unexplored. We aimed to investigate the relationship between parasites and bacteria in individuals with IBS in order to identify potential trans-kingdom microbial characteristics. DESIGN: Stool samples were collected from the Danish background population classified into IBS (n = 119), unspecific gastrointestinal (GI) symptoms (n = 114), and asymptomatic controls (n = 186) based on the Rome III criteria for IBS...
June 19, 2018: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29876777/probiotics-ameliorate-stool-consistency-in-patients-with-chronic-constipation-a-randomized-double-blind-placebo-controlled-study
#5
Jin Young Yoon, Jae Myung Cha, Ju Kyoung Oh, Pei Lei Tan, Sae Hun Kim, Min Seob Kwak, Jung Won Jeon, Hyun Phil Shin
BACKGROUND/AIMS: The efficacy of probiotics for improving clinical symptoms, altering the fecal microbiota, and regulating serum immune cytokine levels was investigated in patients with irritable bowel syndrome-constipation (IBS-C) or functional constipation (FC). METHODS: A randomized, double-blind, placebo-controlled trial was conducted at Kyung Hee University Hospital between October 2016 and February 2017. Consecutive 18-75-year-old patients with diagnosis of IBS-C or FC (based on Rome IV criteria) consumed probiotics (3...
June 7, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29777439/fecal-and-mucosa-associated-intestinal-microbiota-in-patients-with-diarrhea-predominant-irritable-bowel-syndrome
#6
Nitsan Maharshak, Yehuda Ringel, David Katibian, Ashley Lundqvist, R Balfour Sartor, Ian M Carroll, Tamar Ringel-Kulka
BACKGROUND: Irritable bowel syndrome (IBS) has been associated with changes in the intestinal microbiota. Only a few studies have explored differences in the mucosa-associated microbiota between IBS patients and healthy controls (HC). AIMS: To characterize and compare the microbiota in mucosal and fecal samples from carefully selected patients with IBS-D and HC. METHODS: The cohort was composed of 23 diarrhea-predominant IBS (IBS-D) patients and 24 HC...
July 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29748817/the-role-of-the-microbiome-for-human-health-from-basic-science-to-clinical-applications
#7
M Hasan Mohajeri, Robert J M Brummer, Robert A Rastall, Rinse K Weersma, Hermie J M Harmsen, Marijke Faas, Manfred Eggersdorfer
The 2017 annual symposium organized by the University Medical Center Groningen in The Netherlands focused on the role of the gut microbiome in human health and disease. Experts from academia and industry examined interactions of prebiotics, probiotics, or vitamins with the gut microbiome in health and disease, the development of the microbiome in early-life and the role of the microbiome on the gut-brain axis. The gut microbiota changes dramatically during pregnancy and intrinsic factors (such as stress), in addition to extrinsic factors (such as diet, and drugs) influence the composition and activity of the gut microbiome throughout life...
May 10, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29668957/no-significant-association-between-the-fecal-microbiome-and-the-presence-of-irritable-bowel-syndrome-type-symptoms-in-patients-with-quiescent-inflammatory-bowel-disease
#8
Oliver Shutkever, David J Gracie, Caroline Young, Henry M Wood, Morag Taylor, P John Hamlin, Alexander C Ford, Philip Quirke
Background: The microbiome is implicated in the pathogenesis of inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS). Whether a distinct microbiome profile is associated with the reporting of IBS-type symptoms in IBD patients is uncertain. We aimed to resolve this issue using a cross-sectional study design. Methods: Using clinical disease activity indices, the Rome III criteria for IBS and fecal calprotectin levels, we divided IBD patients into 4 groups: IBS-type symptoms, quiescent disease, occult inflammation, and active disease...
June 8, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29493330/fecal-microbiota-transplantation-for-managing-irritable-bowel-syndrome
#9
Magdy El-Salhy, Tarek Mazzawi
Irritable bowel syndrome (IBS) is a widespread gastrointestinal disorder affecting 11.2% of the world adult population. The intestinal microbiome is thought to play a pivotal role in the pathophysiology of IBS. The composition of the fecal microbiome in IBS patients differs from that in healthy individuals, but the exact bacteria species involved in the development of IBS remain to be determined. There is also an imbalance between useful and harmful bacteria (dysbiosis) in the intestinal microbiome in patients with IBS...
May 2018: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29388674/pain-self-management-plus-nurse-led-support-in-young-adults-with-irritable-bowel-syndrome-study-protocol-for-a-pilot-randomized-control-trial
#10
RANDOMIZED CONTROLLED TRIAL
Xiaomei Cong, Divya Ramesh, Mallory Perry, Wanli Xu, Katherine M Bernier, Erin E Young, Stephen Walsh, Angela Starkweather
Irritable bowel syndrome (IBS) is a functional gut disorder that typically manifests in early adult years. IBS patients report that pain is the most distressing symptom with the greatest impact on quality of life. Pain-sensitivity genes and the gut microbiome may influence severity of symptoms as well as response to self-management (SM) interventions. Based on current understanding of the science of SM, pain neurophysiology, and the gut-brain axis, our team developed a pain SM intervention to be added to evidence-based self-management instruction to increase the individual's SM knowledge and skills (self-efficacy, self-regulation, and goal-setting)...
April 2018: Research in Nursing & Health
https://www.readbyqxmd.com/read/29383802/reversal-of-visceral-hypersensitivity-in-rat-by-menthacarin-%C3%A2-a-proprietary-combination-of-essential-oils-from-peppermint-and-caraway-coincides-with-mycobiome-modulation
#11
S Botschuijver, O Welting, E Levin, D Maria-Ferreira, E Koch, R C Montijn, J Seppen, T B M Hakvoort, F H J Schuren, W J de Jonge, R M van den Wijngaard
BACKGROUND: Irritable bowel syndrome (IBS) is a common gastrointestinal disorder associated with altered gastrointestinal microflora and increased nociception to colonic distension. This visceral hypersensitivity can be reversed in our rat maternal separation model by fungicides. Menthacarin® is a proprietary combination of essential oils from Mentha x piperita L. and Carum carvi. Because these oils exhibit antifungal and antibacterial properties, we investigated whether Menthacarin® can reverse existing visceral hypersensitivity in maternally separated rats...
June 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29375937/eukaryotes-in-the-gut-microbiota-in-myalgic-encephalomyelitis-chronic-fatigue-syndrome
#12
Alexandra H Mandarano, Ludovic Giloteaux, Betsy A Keller, Susan M Levine, Maureen R Hanson
Patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) often suffer from gastrointestinal symptoms and many are diagnosed with irritable bowel syndrome (IBS). Previous studies, including from our laboratory, have demonstrated that the ME/CFS gut bacterial composition is altered and less diverse when compared to healthy individuals. Patients have increased biomarkers of inflammation and leaky gut syndrome. To further investigate dysbiosis in the ME/CFS gut microbiome, we sought to characterize the eukaryotes present in the gut of 49 individuals with ME/CFS and 39 healthy controls...
2018: PeerJ
https://www.readbyqxmd.com/read/29373532/the-role-of-bacteria-probiotics-and-diet-in-irritable-bowel-syndrome
#13
REVIEW
Ashton Harper, Malwina M Naghibi, Davinder Garcha
Irritable bowel syndrome is a highly prevalent gastrointestinal disorder that threatens the quality of life of millions and poses a substantial financial burden on healthcare systems around the world. Intense research into the human microbiome has led to fascinating discoveries which directly and indirectly implicate the diversity and function of this occult organ in irritable bowel syndrome (IBS) pathophysiology. The benefit of manipulating the gastrointestinal microbiota with diet and probiotics to improve symptoms has been demonstrated in a wealth of both animal and human studies...
January 26, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29301380/the-gut-brain-axis-and-the-microbiome-clues-to-pathophysiology-and-opportunities-for-novel-management-strategies-in-irritable-bowel-syndrome-ibs
#14
REVIEW
Eamonn M M Quigley
Irritable bowel syndrome (IBS) is one of the most common of all medical disorders worldwide and, while for some it represents no more than a nuisance, for others it imposes significant negative impacts on daily life and activities. IBS is a heterogeneous disorder and may well have a number of causes which may lie anywhere from the external environment to the contents of the gut lumen and from the enteric neuromuscular apparatus and the gut immune system to the central nervous system. Consequently, the paradigm of the gut-brain axis, which includes the participation of these various factors, has proven a useful model to assist clinicians and patients alike in understanding the genesis of symptoms in IBS...
January 3, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29094792/dietary-therapies-for-functional-bowel-symptoms-recent-advances-challenges-and-future-directions
#15
REVIEW
C J Tuck, S J Vanner
BACKGROUND: Functional gastrointestinal symptoms in irritable bowel syndrome (IBS) and quiescent inflammatory bowel disease (IBD) cause significant morbidity and a reduction in quality of life. Multiple dietary therapies are now available to treat these symptoms, but supporting evidence for many is limited. In addition to a further need for studies demonstrating efficacy and mechanism of action of dietary therapies, the risk of nutritional inadequacy, alterations to the microbiome and changes in quality of life are key concerns requiring elucidation...
January 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28936910/modulation-of-the-gut-microbiota-a-focus-on-treatments-for-irritable-bowel-syndrome
#16
REVIEW
Lucinda A Harris, Noemi Baffy
Irritable bowel syndrome (IBS), which is characterized by recurrent abdominal pain and disordered bowel habits, is one of the most common functional bowel disorders. IBS is a substantial burden on both patient health-related quality of life and healthcare costs. Several pathophysiologic mechanisms have been postulated for the occurrence of IBS, including altered gastrointestinal motility, visceral hypersensitivity, changes in gut permeability, immune activation, gut-brain dysregulation, central nervous system dysfunction, and changes in the gut microbiota...
November 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28887729/intestinal-microbiome-gut-brain-axis-and-irritable-bowel-syndrome
#17
REVIEW
Gabriele Moser, Camille Fournier, Johannes Peter
Psychological comorbidity is highly present in irritable bowel syndrome (IBS). Recent research points to a role of intestinal microbiota in visceral hypersensitivity, anxiety, and depression. Increased disease reactivity to psychological stress has been described too. A few clinical studies have attempted to identify features of dysbiosis in IBS. While animal studies revealed strong associations between stress and gut microbiota, studies in humans are rare. This review covers the most important studies on intestinal microbial correlates of psychological and clinical features in IBS, including stress, anxiety, and depression...
March 2018: Wiener Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28885302/postinfection-irritable-bowel-syndrome-the-links-between-gastroenteritis-inflammation-the-microbiome-and-functional-disease
#18
REVIEW
Ian A Downs, Olga C Aroniadis, Libusha Kelly, Lawrence J Brandt
Postinfection irritable bowel syndrome (PI-IBS) is a diarrheal disease that develops after infectious gastroenteritis (IGE). Profound alterations in the microbiota accompany IGE yet only 10% of IGE patients progress to PI-IBS. This review explores research linking IGE severity, psychological comorbidity, PI-IBS, and the microbiome in various patient populations. Selective pressures caused by inflammation and increased gastrointestinal motility during gastroenteritis can alter intestinal bacterial phyla including Bacteroidetes, Firmicutes, and Proteobacteria...
November 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28740352/long-term-irritable-bowel-syndrome-symptom-control-with-reintroduction-of-selected-fodmaps
#19
RANDOMIZED CONTROLLED TRIAL
Ruth M Harvie, Alexandra W Chisholm, Jordan E Bisanz, Jeremy P Burton, Peter Herbison, Kim Schultz, Michael Schultz
AIM: To investigate the long-term effect of dietary education on a low fermentable oligosaccharide, disaccharide and polyol (FODMAP) diet on irritable bowel syndrome (IBS) symptoms and quality of life (QoL). METHODS: Participants with IBS (Rome III) were randomized to two groups. Group I commenced a low FODMAP diet at baseline. At three months, group II, so far a comparator group, crossed over to a low FODMAP diet while group I started re-challenging foods. All patients completed the IBS SSS (IBS symptom severity scoring system, 0-500 points increasing with severity), IBS QoL questionnaire (0-100 increasing with QoL), a FODMAP specific food frequency questionnaire and provided a stool sample at baseline, three and six months for microbiome analysis...
July 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28737582/a-nutritional-approach-for-managing-irritable-bowel-syndrome
#20
REVIEW
Natalie Bhesania, Gail A M Cresci
PURPOSE OF REVIEW: Irritable bowel syndrome (IBS) is the most common functional gastrointestinal disorder (FGID) encountered by the pediatrician and consultant. The primary focus of this review is to provide an update on beneficial nutritional interventions for managing this patient population with discussion on gut microbiome effects. RECENT FINDINGS: A common complaint among the pediatric population is IBS-related recurrent abdominal pain. The prevalence of IBS is estimated to range between 6 and 14% and is defined by the Rome III criteria for FGIDs...
October 2017: Current Opinion in Pediatrics
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