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https://www.readbyqxmd.com/read/29155167/bile-acids-and-bowel-function-do-they-play-a-role-in-ibs-c
#1
EDITORIAL
Arnold Wald
No abstract text is available yet for this article.
November 15, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29027719/glioplasticity-in-irritable-bowel-syndrome
#2
N L Lilli, L Quénéhervé, S Haddara, C Brochard, P Aubert, M Rolli-Derkinderen, T Durand, P Naveilhan, J-B Hardouin, R De Giorgio, G Barbara, S Bruley des Varannes, E Coron, M Neunlist
BACKGROUND: Growing evidence indicates a wide array of cellular remodeling in the mucosal microenvironment during irritable bowel syndrome (IBS), which possibly contributes to pathophysiology and symptom generation. Here, we investigated whether enteric glial cells (EGC) may be altered, and which factors/mechanisms lead to these changes. METHODS: Colonic mucosal biopsies of IBS patients (13 IBS-Constipation [IBS-C]; 10 IBS-Diarrhea [IBS-D]; 11 IBS-Mixed [IBS-M]) and 24 healthy controls (HC) were analyzed...
October 13, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28992677/nationwide-multicenter-study-for-overlaps-of-common-functional-gastrointestinal-disorders-in-korean-patients-with-constipation
#3
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
https://www.readbyqxmd.com/read/28989013/development-of-a-modified-release-formulation-of-lovastatin-targeted-to-intestinal-methanogens-implicated-in-irritable-bowel-syndrome-with-constipation
#4
Steven Hubert, Alan Chadwick, Vince Wacher, Olivia Coughlin, John Kokai-Kun, Andrew Bristol
There is growing evidence that methane production, predominantly by Methanobrevibacter smithii, in the intestines is a cause of constipation, pain, and bloating in irritable bowel syndrome with constipation (IBS-C). M smithii resides primarily in the large intestine but can also colonize the small intestine. In vitro studies found that the prodrug lactone form of lovastatin, found in cholesterol-lowering drugs, inhibited methane production in stool samples from patients with IBS-C. However, the cholesterol-lowering lovastatin β-hydroxyacid was ineffective at inhibiting methane production in this system...
October 6, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28975689/inflammatory-cell-distribution-in-colon-mucosa-as-a-new-tool-for-diagnosis-of-irritable-bowel-syndrome-a-promising-pilot-study
#5
J Boyer, M-C Saint-Paul, B Dadone, S Patouraux, M-H Vivinus, D Ouvrier, J-F Michiels, T Piche, M K Tulic
BACKGROUND: Currently, there are no histological criteria to diagnose irritable bowel syndrome (IBS). Our aims were (i) to examine the distribution of inflammatory cells in the colon of healthy and IBS subjects and (ii) to find histological diagnosis criteria for IBS. METHODS: Colonic biopsies were taken from four distinct regions of the colon from 20 controls (HC) and 11 patients with IBS (4 with constipation (IBS-C) and 7 with diarrhea (IBS-D) and embedded in paraffin...
October 4, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28886490/interleukin-6-in-irritable-bowel-syndrome-a-systematic-review-and-meta-analysis-of-il-6-g174c-and-circulating-il-6-levels
#6
REVIEW
Mohammad Bashashati, Maryam Moradi, Irene Sarosiek
BACKGROUND: Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder which presents with abdominal pain and alterations of the bowel habits. The pathophysiology of IBS is not well-recognized. Low grade inflammation has been suggested as one of the underlying mechanisms of IBS. Variations in the circulating pro-inflammatory interleukin-6 (IL-6) levels and IL-6 gene polymorphisms have been demonstrated in IBS. However, the results of published studies are not consistent, probably due to their small sample sizes...
September 5, 2017: Cytokine
https://www.readbyqxmd.com/read/28809383/increasing-symptoms-in-irritable-bowel-symptoms-with-ingestion-of-galacto-oligosaccharides-are-mitigated-by-%C3%AE-galactosidase-treatment
#7
C J Tuck, K M Taylor, P R Gibson, J S Barrett, J G Muir
OBJECTIVES: Galacto-oligosaccharides (GOS) are dietary FODMAPs (fermentable carbohydrates) associated with triggering gastrointestinal symptoms in patients with irritable bowel syndrome (IBS). This randomized, double-blind, placebo-controlled, cross-over trial aimed to assess whether oral α-galactosidase co-ingestion with foods high in GOS and low in other FODMAPs would reduce symptoms. METHODS: Patients meeting the Rome III criteria for IBS who were hydrogen-producers on breath testing were recruited...
August 15, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28808081/%C3%A2-eluxadoline-for-ibs-d
#8
(no author information available yet)
Irritable bowel syndrome (IBS) is a chronic relapsing gastrointestinal problem characterised by intestinal pain and associated alterations of defecation and/or bowel habit (constipation: IBS-C or diarrhoea: IBS-D).(1,2) Opioid receptors in the gut have a role in gastrointestinal motility, secretion and sensation.(3) Τ Eluxadoline (Truberzi-Allergan) is a locally acting, mixed opioid receptor agonist/antagonist licensed for the treatment of IBS-D in adults.(4) Here, we consider the evidence for eluxadoline and how it fts with current management strategies for IBS-D...
August 2017: Drug and Therapeutics Bulletin
https://www.readbyqxmd.com/read/28799291/inaccuracy-of-patient-reported-descriptions-of-and-satisfaction-with-bowel-actions-in-irritable-bowel-syndrome
#9
E P Halmos, J R Biesiekierski, E D Newnham, R E Burgell, J G Muir, P R Gibson
BACKGROUND: Perception of diarrhea and constipation differs greatly. This study aimed to correlate subjective and objective assessment of fecal characteristics in irritable bowel syndrome (IBS) patients. METHODS: Data from two interventional dietary trials with varying FODMAP (Fermentable Oligosaccharides, Disaccharides, Monosaccharides And Polyols) or gluten content were interrogated. Subjects rated their dissatisfaction with stool consistency daily using a visual analog scale during the interventions...
August 10, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28774781/estrogen-signaling-deregulation-related-with-local-immune-response-modulation-in-irritable-bowel-syndrome
#10
REVIEW
Damian Jacenik, Adam I Cygankiewicz, Jakub Fichna, Anna Mokrowiecka, Ewa Małecka-Panas, Wanda M Krajewska
The etiology and pathogenesis underlying irritable bowel syndrome (IBS), a common gastrointestinal disorder are still unclear. Cumulating data suggest dysregulation of inflammatory and immune response pathways and changes of epithelial barrier function. The role of estrogens albeit varied, in responses of immune system is well documented. The aim of this study was to investigate estrogen receptors engagment in IBS subtypes, i.e. constipation predominant (IBS-C) and diarrhea predominant (IBS-D). Furthermore, we analyzed whether estrogen signaling is accompanied by alteration in expression of pro- and anti-inflammatory cytokines and microRNAs that can regulate among others genes involved in immune responses...
July 31, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28764761/abnormalities-in-ileal-stem-neurogenin-3-and-enteroendocrine-cells-in-patients-with-irritable-bowel-syndrome
#11
Magdy El-Salhy, Odd Helge Gilja
BACKGROUND: This study examined whether the densities of stem- and enteroendocrine cell progenitors are abnormal in the ileum of patients with irritable bowel syndrome (IBS), and whether any abnormalities in ileal enteroendocrine cells are correlated with abnormalities in stem cells and enteroendocrine cell progenitors. METHODS: One hundred and one IBS patients covering all IBS subtypes were recruited, and 39 non-IBS subjects were included as a control group. The patients and controls underwent standard colonoscopies, during which biopsy specimens were obtained from the ileum...
August 1, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28757466/identification-of-serum-proteome-signature-of-irritable-bowel-syndrome-potential-utility-of-the-tool-for-early-diagnosis-and-patient-s-stratification
#12
Athanasios Tsigaridas, Athanassios K Anagnostopoulos, Aggeliki Papadopoulou, Stamatia Ioakeim, Anna Vaiopoulou, Ioannis S Papanikolaou, Nikos Viazis, George Karamanolis, Gerasimos J Mantzaris, George T Tsangaris, Maria Gazouli
Irritable bowel syndrome (IBS) is a chronic gastrointestinal disorder with high incidence, and great heterogeneity of symptoms. Numerous factors are correlated with IBS development; however, the pathophysiology is not yet clear. In addition, there is no appropriate diagnostic tool available. The aim of this study was the identification of protein expression alterations in IBS patients compared to healthy individuals. Serum samples from 30 IBS patients (10 with IBS-Diarrhea, 10 IBS-Constipation and 10 IBS-Mixed) and 10 healthy individuals were subjected to proteomic analysis by 2-dimensional gel electrophoresis...
July 28, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28666948/bile-acid-deficiency-in-a-subgroup-of-patients-with-irritable-bowel-syndrome-with-constipation-based-on-biomarkers-in-serum-and-fecal-samples
#13
Priya Vijayvargiya, Irene Busciglio, Duane Burton, Leslie Donato, Alan Lueke, Michael Camilleri
BACKGROUND & AIMS: Short-term administration of delayed-release chenodeoxycholic acid to patients with irritable bowel syndrome with constipation (IBS-C) accelerates colonic transit and reduces symptoms. A preliminary study has shown that patients with IBS-C have reduced levels of bile acids (BAs) in feces and reduced synthesis of BA. We compared the levels of primary and secondary BAs in fecal samples collected over a 48-hour period from patients with IBS-C on a diet that contained 100 g fat per day, and compared them with levels in samples from healthy volunteers (controls)...
June 27, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28643273/chronic-constipation-in-rome-iv-era-the-indian-perspective
#14
REVIEW
Uday C Ghoshal
Chronic constipation (CC) is a common problem in the community and in gastroenterology practice all over the world including India. After release of Rome IV guidelines in April 2016, there is increasing interest among gastroenterologists and physicians in India to look into special issues on CC in the Indian perspective. There are important differences in the bowel habit, definition, epidemiology, and pathophysiology including dietary factors and management of CC in India as compared to the West. As severity and frequency of abdominal pain, a symptom essential to diagnose constipation-predominant irritable bowel syndrome (IBS-C) rather than functional constipation (FC), is less common among Indian patients, FC is commoner than IBS-C in India...
May 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/28557573/putative-mechanisms-of-kiwifruit-on-maintenance-of-normal-gastrointestinal-function
#15
Simone Birgit Bayer, Richard Blair Gearry, Lynley Ngaio Drummond
Kiwifruit are recognized as providing relief from constipation and symptoms of constipation-predominant irritable bowel syndrome (IBS-C). However, the underlying mechanisms, specifically in regards to gastrointestinal transit time and motility, are still not completely understood. This review provides an overview on the physiological and pathophysiological processes underlying constipation and IBS-C, the composition of kiwifruit, and recent advances in the research of kiwifruit and abdominal comfort. Additionally, gaps in the research are highlighted and scientific studies of other foods with known effects on the gastrointestinal tract are consulted to find likely mechanisms of action...
May 30, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28522955/colonic-dysmotility-and-morphological-abnormality-frequently-detected-in-japanese-patients-with-irritable-bowel-syndrome
#16
Takeshi Mizukami, Shinya Sugimoto, Tatsuhiro Masaoka, Hidekazu Suzuki, Takanori Kanai
BACKGROUND/AIMS: Colonoscopy and computed tomography (CT) are used primarily to exclude organic diseases in patients with irritable bowel syndrome (IBS), rather than to assess the pathophysiology of IBS. We aimed to evaluate colonic dysmotility and morphology in Japanese patients with IBS. METHODS: One hundred eighty-four patients with IBS and 49 asymptomatic controls who underwent colonoscopy in combination with CT colonography or barium enema were retrospectively reviewed between 2008 and 2012...
April 2017: Intestinal Research
https://www.readbyqxmd.com/read/28480865/impact-of-food-enriched-with-dietary-fiber-on-patients-with-constipation-predominant-irritable-bowel-syndrome
#17
G Sulaberidze, M Okujava, K Liluashvili, M Tughushi, M Abramashvili
The causes of motility disorder of gastrointestinal tract and in particular Irritable Bowel Syndrome IBS are multifold, leading to complexity of treatment and requirement of more precise investigation of different pharmacological and non-pharmacological approaches. The aim of the study was investigation and comparison of the dietary fiber intake among women with constipation-predominant irritable bowel syndrome (IBS-C) and without, improvement of the dietary fiber intake using interventions with less rough changes of food related behavior and study of its effects on the bowel function, general wellbeing and compliance of patients...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28480684/effects-of-cognitive-behavior-therapy-on-heart-rate-variability-in-young-females-with-constipation-predominant-irritable-bowel-syndrome-a-parallel-group-trial
#18
Aelee Jang, Sun-Kyung Hwang, Nikhil S Padhye, Janet C Meininger
Background/Aims: The relation between heart rate variability (HRV) as non-invasive biomarkers of autonomic function and cognitive behavior therapy (CBT) as non-pharmacological treatments has rarely been examined in patients with constipation-predominant irritable bowel syndrome (IBS-C). The purpose of this study is to evaluate the efficacy of an 8-week CBT intervention on HRV and IBS symptoms, and the correlation of changes in HRV with changes in IBS symptoms among young female nursing students with IBS-C...
July 30, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28451914/assessment-of-anti-vinculin-and-anti-cytolethal-distending-toxin-b-antibodies-in-subtypes-of-irritable-bowel-syndrome
#19
Ali Rezaie, Sung Chul Park, Walter Morales, Emily Marsh, Anthony Lembo, Jae Hak Kim, Stacy Weitsman, Kathleen S Chua, Gillian M Barlow, Mark Pimentel
BACKGROUND: Antibodies to cytolethal distending toxin B (CdtB) and vinculin are novel biomarkers that rule-in and differentiate irritable bowel syndrome with diarrhea (IBS-D) from other causes of diarrhea and healthy controls. AIM: To determine whether these antibodies can also diagnose and differentiate other IBS subtypes. METHODS: Subjects with IBS-D based on Rome III criteria (n = 2375) were recruited from a large-scale multicenter clinical trial (TARGET 3)...
June 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28448580/sildenafil-normalizes-bowel-transit-in-preclinical-models-of-constipation
#20
Sarah K Sharman, Bianca N Islam, Yali Hou, Margaux Usry, Allison Bridges, Nagendra Singh, Subbaramiah Sridhar, Satish Rao, Darren D Browning
Guanylyl cyclase-C (GC-C) agonists increase cGMP levels in the intestinal epithelium to promote secretion. This process underlies the utility of exogenous GC-C agonists such as linaclotide for the treatment of chronic idiopathic constipation (CIC) and irritable bowel syndrome with constipation (IBS-C). Because GC-C agonists have limited use in pediatric patients, there is a need for alternative cGMP-elevating agents that are effective in the intestine. The present study aimed to determine whether the PDE-5 inhibitor sildenafil has similar effects as linaclotide on preclinical models of constipation...
2017: PloS One
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