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Irritable bowel disease

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https://www.readbyqxmd.com/read/29138961/blastocystis-subtypes-isolated-from-irritable-bowel-syndrome-patients-and-co-infection-with-helicobacter-pylori
#1
Ayman A El-Badry, Wegdan M Abd El Wahab, Doaa A Hamdy, Alaa Aboud
Irritable bowel syndrome (IBS) is a chronic functional gastrointestinal disease presenting clinically by abdominal pain with alteration of bowel habits. Although IBS has uncertain etiology, chronic gut inflammation due to persistent exposure to an infectious agent including Blastocystis sp. was proposed. The aim of this study was to detect the prevalence of Blastocystis sp. subtype (ST) isolated from stool of IBS patients and to assess Blastocystis sp. and H. pylori co-infection in IBS patients from Beni-Suef Governorate, Egypt...
November 14, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29135035/analysis-and-measurement-of-serotonin
#2
REVIEW
András Seitz, Stelvio M Bandiera
Serotonin, also known as 5-hydroxytryptamine, is an important signaling molecule in the central and peripheral nervous systems of humans. Acting through several receptor types, it helps regulate the normal functioning of the gastrointestinal tract, cardiovascular system and brain. Serotonin signaling has also been implicated in the etiology of several diseases, including depression, anxiety disorders, hypertension and irritable bowel syndrome. The present review focuses on the chemical analysis of serotonin in biological fluids and biomatrices and traces the development and application of early methods based on UV absorbance or fluorescence to more widely-used current methods such as high-performance liquid chromatography coupled to mass spectrometry...
November 14, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29132529/celiac-disease-and-gluten-sensitivity
#3
REVIEW
Katharine C DeGeorge, Jeanetta W Frye, Kim M Stein, Lisa K Rollins, Daniel F McCarter
Celiac disease is an immune-mediated enteropathy triggered by gluten that affects genetically predisposed individuals, typically causing intestinal symptoms and malabsorption. Diagnosis requires stepwise evaluation with anti-tissue transglutaminase IgA and histologic analysis of the small bowel. Strict adherence to a gluten-free diet is the primary treatment. Patients with symptoms thought to be related to gluten but without evidence of celiac disease are difficult to diagnose and treat. Consider first advising general nutritional improvements...
December 2017: Primary Care
https://www.readbyqxmd.com/read/29132527/irritable-bowel-syndrome-epidemiology-pathophysiology-diagnosis-and-treatment
#4
REVIEW
Dean Nathanial Defrees, Justin Bailey
Irritable bowel syndrome is a common medical condition that significantly alters patient quality of life and presents a series of diagnostic and treatment challenges to the treating provider. This article provides an updated and straightforward overview of the disease, its pathophysiology, diagnosis, and treatment options.
December 2017: Primary Care
https://www.readbyqxmd.com/read/29130220/-current-research-progress-and-thinking-of-fecal-microbiota-transplantation-for-the-treatment-of-gastrointestinal-disorders
#5
Ning Li, Hongliang Tian
Fecal microbiota transplantation (FMT), also known as fecal bacteriotherapy or fecal infusion, consists of injection of a liquid filtrate of feces from a healthy donor into the gastrointestinal tract of a recipient individual. FMT has been proposed as a therapeutic approach for functional diseases of the gastrointestinal tract by reestablishment of a wide diversity of intestinal flora. Clostridium difficile infection (CDI) treatment guideline from American Gastroenterology Association (AGA) recommends that FMT can be used as the treatment protocols of relapse CDI...
October 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29126502/clinical-presentation-of-crohn-s-ulcerative-colitis-and-indeterminate-colitis-symptoms-extraintestinal-manifestations-and-disease-phenotypes
#6
Yangyang R Yu, J Ruben Rodriguez
The incidence of inflammatory bowel disease (IBD) is rising with 25% of IBD diagnosed in children under 18 years of age. The clinical presentation of IBD in children is often vague leading to initial misdiagnosis as infectious colitis or irritable bowel syndrome. When IBD is identified, overlap in histologic and endoscopic features may lead to difficulty distinguishing Crohn's disease from ulcerative colitis, resulting in a higher frequency of the diagnosis indeterminate colitis or IBD unspecified. Recognizing the common and the atypical presentation of pediatric IBD and extraintestinal manifestations will aid in expeditious referral and early diagnosis...
December 2017: Seminars in Pediatric Surgery
https://www.readbyqxmd.com/read/29102613/fructan-rather-than-gluten-induces-symptoms-in-patients-with-self-reported-non-celiac-gluten-sensitivity
#7
Gry I Skodje, Vikas K Sarna, Ingunn H Minelle, Kjersti L Rolfsen, Jane G Muir, Peter R Gibson, Marit B Veierød, Christine Henriksen, Knut E A Lundin
BACKGROUND & AIMS: Non-celiac gluten sensitivity is characterized by symptom improvement after gluten withdrawal in absence of celiac disease. The mechanisms of non-celiac gluten sensitivity are unclear, and there are no biomarkers for this disorder. Foods with gluten often contain fructans, a type of fermentable oligo-, di-, monosaccharides and polyols. We aimed to investigate the effect of gluten and fructans separately in individuals with self-reported gluten sensitivity. METHODS: We performed a double-blind crossover challenge of 59 individuals on a self-instituted gluten-free diet, for whom celiac disease had been excluded...
November 1, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29100842/faecal-microbiota-transplantation-versus-placebo-for-moderate-to-severe-irritable-bowel-syndrome-a-double-blind-randomised-placebo-controlled-parallel-group-single-centre-trial
#8
Peter Holger Johnsen, Frank Hilpüsch, Jorunn Pauline Cavanagh, Ingrid Sande Leikanger, Caroline Kolstad, Per Christian Valle, Rasmus Goll
BACKGROUND: Irritable bowel syndrome (IBS) is a common condition characterised by abdominal pain, bloating, and poor quality of life. IBS might be caused by a gut dysbiosis. We aimed to compare faecal microbiota transplantation (FMT) with placebo in patients with IBS. METHODS: In this double-blind, randomised, placebo-controlled, parallel-group, single-centre study, we enrolled patients with IBS with diarrhoea or with diarrhoea and constipation (excluding dominating constipation) defined by the ROME III criteria, scored as moderate to severe according to the IBS severity scoring system (IBS-SSS; a score of ≥175)...
October 31, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29099770/adenosine-a2b-receptors-an-optional-target-for-the-management-of-irritable-bowel-syndrome-with-diarrhea
#9
REVIEW
Teita Asano, Mitsuko Takenaga
Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder, with the characteristic symptoms of chronic abdominal pain and altered bowel habits (diarrhea, constipation, or both). IBS is a highly prevalent condition, which negatively affects quality of life and is a significant burden on global healthcare costs. Although many pharmacological medicines have been proposed to treat IBS, including those targeting receptors, channels, and chemical mediators related to visceral hypersensitivity, successful pharmacotherapy for the disease has not been established...
November 3, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29094792/dietary-therapies-for-functional-bowel-symptoms-recent-advances-challenges-and-future-directions
#10
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...
November 2, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29089436/protease-mediated-suppression-of-drg-neuron-excitability-by-commensal-bacteria
#11
Jessica L Sessenwein, Corey C Baker, Sabindra Pradhananga, Megan E Maitland, Elaine O Petrof, Emma Allen-Vercoe, Curtis Noordhof, David E Reed, Stephen J Vanner, Alan E Lomax
Peripheral pain signaling reflects a balance of pro and anti-nociceptive influences; the contribution by the gastrointestinal (GI) microbiota to this balance has received little attention. Disorders such as inflammatory bowel disease and irritable bowel syndrome are associated with exaggerated visceral nociceptive actions that may involve altered microbial signaling, particularly given the evidence for bacterial dysbiosis. Thus, we tested whether a community of commensal GI bacteria derived from a healthy human donor (microbial ecosystem therapeutics; MET-1) can affect the excitability of male mouse dorsal root ganglion (DRG) neurons...
October 31, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29083538/functional-dyspepsia-and-duodenal-eosinophilia-a-new-disease-model
#12
REVIEW
Kening Fan, Nicholas J Talley
Functional dyspepsia (FD) is a highly prevalent disorder that affects more than 10% of the population. In the past decade, the conceptual underpinning of FD has begun to change, and new data are unraveling the underlying pathophysiological mechanisms of this disorder with a focus on the duodenum. The Rome IV criteria were published in 2016, and notably suggests that gastroesophageal reflux disease and irritable bowel syndrome may all be part of the same disease spectrum as FD. Helicobacter pylori explains a minority of FD cases and in Rome IV is considered a separate entity...
October 30, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/29078077/is-epstein-barr-virus-infection-associated-with-the-pathogenesis-of-microscopic-colitis
#13
Aroldo Gabriele Rizzo, Ambrogio Orlando, Elena Gallo, Andrea Bisanti, Stefania Sferrazza, Luigi Maria Montalbano, Fabio Salvatore Macaluso, Mario Cottone
BACKGROUND: Epstein-Barr virus (EBV) has been associated with inflammation in the colon, particularly in patients with inflammatory bowel disease (IBD). Even if a relevant plasmocytosis, similar to IBD, is present in microscopic colitis (MC), the frequency of EBV infection in this setting is unknown. OBJECTIVES: We aimed to compare the frequency of colonic EBV infection in patients with MC, ulcerative colitis (UC), and irritable bowel syndrome (IBS). STUDY DESIGN: The frequency of colonic EBV infection in biopsies of 30 patients with MC, 30 patients with UC, and 30 controls with IBS was retrospectively assessed...
October 20, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29076444/-faecal-microbiota-transplantation-indications-in-perspective
#14
Y H van Beurden, E M Terveer, J J Keller, E J Kuijper, C J J Mulder, C M J E Vandenbroucke-Grauls
- As yet, with cure rates around 85%, recurrent Clostridium difficile infection is the only definite indication for faecal microbiota transplantation.- Faecal microbiota transplantation induces clinical remission and endoscopic improvements in 24-30% of patients with ulcerative colitis, compared to 5% (water) to 20% (autologous faeces) in placebo-treated patients. Current research focuses on the identification of 'super donors', and subgroups of patients in which faecal microbiota transplantation is effective...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29072609/rome-criteria-and-a-diagnostic-approach-to-irritable-bowel-syndrome
#15
REVIEW
Brian E Lacy, Nihal K Patel
Functional gastrointestinal disorders (FGIDs) account for at least 40% of all referrals to gastroenterologists. Of the 33 recognized adult FGIDs, irritable bowel syndrome (IBS) is the most prevalent, with a worldwide prevalence estimated at 12%. IBS is an important health care concern as it greatly affects patients' quality of life and imposes a significant economic burden to the health care system. Cardinal symptoms of IBS include abdominal pain and altered bowel habits. The absence of abdominal pain makes the diagnosis of IBS untenable...
October 26, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29065905/severe-intestinal-dysbiosis-is-prevalent-in-primary-sj%C3%A3-gren-s-syndrome-and-is-associated-with-systemic-disease-activity
#16
Thomas Mandl, Jan Marsal, Peter Olsson, Bodil Ohlsson, Kristofer Andréasson
BACKGROUND: Altered microbial composition of the intestine, commonly referred to as dysbiosis, has been associated with several autoimmune diseases including primary Sjögren's syndrome (pSS). The aims of the current study were to study the intestinal microbial balance in pSS and to identify clinical features associated with dysbiosis. METHODS: Forty-two consecutive pSS patients and 35 age-matched and sex-matched control subjects were included in the study in an open clinic setting...
October 24, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29028807/ulcerative-colitis-crohn-s-disease-and-irritable-bowel-syndrome-have-different-profiles-of-extracellular-matrix-turnover-which-also-reflects-disease-activity-in-crohn-s-disease
#17
Joachim Høg Mortensen, Tina Manon-Jensen, Michael Dam Jensen, Per Hägglund, Lone Gabriels Klinge, Jens Kjeldsen, Aleksander Krag, Morten Asser Karsdal, Anne-Christine Bay-Jensen
BACKGROUND: Increased protease activity is a key pathological feature of inflammatory bowel disease (IBD). However, the differences in extracellular matrix remodelling (ECM) in Crohn's disease (CD) and ulcerative colitis (UC) are not well described. An increased understanding of the inflammatory processes may provide optimized disease monitoring and diagnostics. We investigated the tissue remodelling in IBD and IBS patients by using novel blood-based biomarkers reflecting ECM remodelling...
2017: PloS One
https://www.readbyqxmd.com/read/28994543/-effect-of-tongxie-yaofang-on-endogenous-metabolites-in-serum-of-ibs-model-rats
#18
Kai Li, Hai-Xue Kuang, Yue Yin, Jie-Yu Zhang, Zhi Wang, Qiu-Yue Zhang, Jian-Wei Wang
To evaluate the effect of Tongxie Yaofang on cardiac endogenous metabolism in irritable bowel syndrome(IBS) rats by using metabolomics method, find its potential biomarkers, analyze the metabolic pathways, and explore the pharmacological effects, mechanisms of action and syndrome essence of syndrome model. Forty Wistar rats were used to establish IBS models, and then randomly divided into four groups: model control group and Tongxie Yaofang treatment groups (high, medium, low dose). Another 10 rats were used as normal group...
March 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28993732/purinergic-signalling-therapeutic-developments
#19
REVIEW
Geoffrey Burnstock
Purinergic signalling, i.e., the role of nucleotides as extracellular signalling molecules, was proposed in 1972. However, this concept was not well accepted until the early 1990's when receptor subtypes for purines and pyrimidines were cloned and characterised, which includes four subtypes of the P1 (adenosine) receptor, seven subtypes of P2X ion channel receptors and 8 subtypes of the P2Y G protein-coupled receptor. Early studies were largely concerned with the physiology, pharmacology and biochemistry of purinergic signalling...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28992677/nationwide-multicenter-study-for-overlaps-of-common-functional-gastrointestinal-disorders-in-korean-patients-with-constipation
#20
Kyung Sik Park, Sam Ryong Jee, Bong Eun Lee, Kyoung Sup Hong, Jeong Eun Shin, Soo-Young Na, Joong Goo Kwon, Suck Chei Choi, Yong Sung Kim, Hyun Seok Lee, Tae Hee Lee, Kyeong Ok Kim, Jongkyoung Choi, Hee Seok Moon, Yeon Soo Kim, Moo In Park, Soo Jung Park, Seon-Young Park, Sung Noh Hong
Background/Aims: In spite of increased concerns about the overlaps among the various functional gastrointestinal disorders (FGIDs), studies for the overlap between constipation and other common FGIDs are rare. Therefore, we investigated the patterns of overlaps between constipation and other common FGIDs. Methods: This study was designed as a prospective nationwide multi-center questionnaire study using Rome III questionnaires for functional dyspepsia (FD), irritable bowel syndrome (IBS), and functional constipation (FC), as well as various questionnaires about patients' information, degree of symptoms, and quality of life...
October 30, 2017: Journal of Neurogastroenterology and Motility
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