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Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society

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https://www.readbyqxmd.com/read/29027725/severity-of-ineffective-esophageal-motility-is-associated-with-utilization-of-skeletal-muscle-relaxant-medications
#1
V Rangan, N S George, F Khan, Z Geng, S Gabbard, A Kichler, H Gittleman, R Fass
BACKGROUND: Ineffective esophageal motility (IEM) is the most common finding on high-resolution esophageal manometry (HREM). The underlying mechanisms for IEM remain to be fully elucidated. The aim of this study was to determine if utilization of skeletal muscle relaxants is associated with IEM, and with more severe subtypes of the disorder. METHODS: Patients with diagnosis of IEM were gender and age matched to patients with normal HREM. Demographic information, symptoms, endoscopic findings, medication usage and medical comorbidities were recorded...
October 13, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
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/29024273/the-first-brain-species-comparisons-and-evolutionary-implications-for-the-enteric-and-central-nervous-systems
#3
REVIEW
J B Furness, M J Stebbing
BACKGROUND: The enteric nervous system (ENS) and the central nervous system (CNS) of mammals both contain integrative neural circuitry and similarities between them have led to the ENS being described as the brain in the gut. PURPOSE: To explore relationships between the ENS and CNS across the animal kingdom. We found that an ENS occurs in all animals investigated, including hydra, echinoderms and hemichordates that do not have a CNS. The general form of the ENS, which consists of plexuses of neurons intrinsic to the gut wall and an innervation that controls muscle movements, is similar in species as varied and as far apart as hydra, sea cucumbers, annelid worms, octopus and humans...
October 11, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29024213/the-newborn-rat-gastric-emptying-rate-is-volume-and-not-developmentally-dependent
#4
C H F Ferreira, Y Shifrin, J Pan, J Ivanovska, P J McNamara, J Belik
BACKGROUND: Gastric residuals are a common finding in enterally fed preterm neonates and traditionally thought to reflect immaturity-related delayed gastric emptying. Adult human data suggest that the meal volume regulate the gastric emptying rate, but early in life, this has not been adequately evaluated. The goal of this study was to study the rat postnatal changes in gastric emptying rate and the strain-induced effect on muscle contraction. We hypothesized that the stomach content volume and not developmental factors determines the newborn gastric emptying rate, via the Rho-kinase 2 (ROCK-2) pathway...
October 11, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29024324/clinical-implications-of-gastrointestinal-symptoms-in-systemic-amyloidosis
#5
T Yen, F W Chen, R M Witteles, M Liedtke, L A Nguyen
BACKGROUND: Gastrointestinal (GI) symptoms in systemic amyloidosis patients are poorly characterized. This purpose of this study is to define the epidemiology and clinical implications of such symptoms. METHODS: This was a retrospective cohort study of 583 amyloid patients seen at a tertiary referral center. Of 96 symptomatic patients, 82 received endoscopic biopsies, subsequently grouped into those with histologic evidence of GI amyloid (biopsy proven) vs without (biopsy absent)...
October 10, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29024314/clinicomanometric-factors-associated-with-clinically-relevant-esophagogastric-junction-outflow-obstruction-from-the-sandhill-high-resolution-manometry-system
#6
B G Song, Y W Min, H Lee, B-H Min, J H Lee, P-L Rhee, J J Kim
BACKGROUND: Integrated relaxation pressure (IRP) is a key metric for diagnosing esophagogastric junction outflow obstruction (EGJOO). However, its normal value might be different according to the manufacturer of high-resolution manometry (HRM). This study aimed to investigate optimal value of IRP for diagnosing EGJOO in Sandhill HRM and to find clinicomanometric variables to segregate clinically relevant EGJOO. METHODS: We analyzed 262 consecutive subjects who underwent HRM between June 2011 and December 2016 showing elevated median IRP (> 15 mm Hg) but did not satisfy criteria for achalasia...
October 10, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28980378/development-and-validation-of-a-childhood-self-efficacy-for-functional-constipation-questionnaire
#7
N R Santucci, P E Hyman, A Karpinski, A Rosenberg, D Garguilo, L E Rein, A Amado-Feeley, E Stoops, R E Herdes, M A L van Tilburg
BACKGROUND: Children with functional constipation fear painful bowel movements leading to stool withholding behavior. Self-efficacy is the belief that an individual can accomplish a given goal. If children with constipation avoid defecation because they think that they are unable defecate comfortably, this low self-efficacy may prevent treatment success. The aim of the current study was to develop and validate a constipation specific self-efficacy scale. METHODS: The self-efficacy for functional constipation questionnaire (SEFCQ) was developed by the authors and evaluated by 10 children and seven experts...
October 4, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28975729/brain-processing-of-rectal-sensation-in-adolescents-with-functional-defecation-disorders-and-healthy-controls
#8
S M Mugie, I J N Koppen, M M van den Berg, P F C Groot, L Reneman, M B de Ruiter, M A Benninga
BACKGROUND: Decreased sensation of urge to defecate is often reported by children with functional constipation (FC) and functional nonretentive fecal incontinence (FNRFI). The aim of this cross-sectional study was to evaluate cerebral activity in response to rectal distension in adolescents with FC and FNRFI compared with healthy controls (HCs). METHODS: We included 15 adolescents with FC, 10 adolescents with FNRFI, and 15 young adult HCs. Rectal barostat was performed prior to functional magnetic resonance imaging (fMRI) to determine individual pressure thresholds for urge sensation...
October 4, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
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
#9
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/28971549/aerophagia-in-adolescents-is-associated-with-exposure-to-adverse-life-events-and-psychological-maladjustment
#10
S Rajindrajith, S Hettige, I Gulegoda, N Jayawickrama, S C De Silva, H K Samarakoon, R L de Silva, S Abeyagunawardena, N M Devanarayana
BACKGROUND: Aerophagia is a common childhood functional gastrointestinal disorder. We studied the association between adverse life events (ALEs), psychological maladjustment, somatization, and aerophagia (AP) in adolescents. We also assessed the impact of AP on their health-related quality of life (HRQoL). METHODS: A cross-sectional survey was conducted on 2500 subjects of 13-18 years in 8 randomly selected schools in Sri Lanka. Translated, validated, and self-administered questionnaires were used to collect data...
October 3, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28960795/gastric-myoelectrical-and-neurohormonal-changes-associated-with-nausea-during-tilt-induced-syncope
#11
G L Heyer, L H Boles, R A Harvey, M J Cismowski
BACKGROUND: Nausea is a common prodromal symptom of neurally mediated syncope, but the biological factors linking nausea with syncope have not been studied. We aimed to characterize nausea during tilt-induced syncope by exploring related changes in gastric myoelectrical activity and plasma epinephrine, norepinephrine, and vasopressin concentrations across study phases of recumbency, tilt, syncope, and recovery. METHODS: Electrogastrographic and plasma hormone changes were compared between patients with tilt-induced syncope and nausea (n = 18) and control subjects (n = 6) without symptoms or hemodynamic changes during tilt-table testing...
September 27, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28948708/variation-in-high-resolution-esophageal-manometry-methodology-in-clinical-practice-results-from-an-international-survey
#12
R Sweis, H Heinrich, M Fox
BACKGROUND: Advances in clinical measurement of esophageal motility and function have improved the assessment of swallowing disorders and reflux symptoms. Variation in data acquisition, analysis, and reporting exists and impacts on diagnosis and management. AIMS AND METHODS: This study examined variation in esophageal manometry methodology between institutions to establish the status in current practice. A structured survey was distributed through international NGM societies using an Internet-based platform...
September 25, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28941004/comparison-between-small-bowel-manometric-patterns-and-full-thickness-biopsy-histopathology-in-severe-intestinal-dysmotility
#13
C Malagelada, T B Karunaratne, A Accarino, R F Cogliandro, S Landolfi, A Gori, E Boschetti, J R Malagelada, V Stanghellini, F Azpiroz, R De Giorgio
BACKGROUND: Intestinal manometry is the current standard for direct evaluation of small bowel dysmotility. Patients with abnormal motility can either be diagnosed of pseudo-obstruction when there are radiological findings mimicking mechanical intestinal obstruction or of enteric dysmotility when these findings are absent. The aim of the present study was to prospectively compare small bowel manometric abnormalities with histopathological findings in intestinal full-thickness biopsies in patients with severe dysmotility disorders...
September 22, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28940740/obesity-increases-the-risk-of-small-intestinal-bacterial-overgrowth-sibo
#14
B C Roland, D Lee, L S Miller, A Vegesna, R Yolken, E Severance, E Prandovszky, X E Zheng, G E Mullin
BACKGROUND: Small intestinal bacterial overgrowth (SIBO) has been associated with anatomical and motility-related abnormalities. Specifically, obesity has been postulated to alter small bowel motility, leading to SIBO. AIMS: (i) Assess the prevalence of SIBO in obesity; (ii) determine the relationship of obesity and SIBO, using small bowel transit time (SBTT) and pH; (iii) profile the gut microbiome in obese and non-obese patients with SIBO. METHODS: Thirty consecutive participants referred for SIBO underwent lactulose breath tests (LBTs) and wireless motility capsule (WMC) studies...
September 21, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28884943/xenotransplantation-of-human-intestine-into-mouse-abdomen-or-subcutaneous-tissue-novel-platforms-for-the-study-of-the-human-enteric-nervous-system
#15
N Nagy, N Marsiano, R S Bruckner, M Scharl, M J Gutnick, S Yagel, E Arciero, A M Goldstein, N Y Shpigel
BACKGROUND: Current efforts to develop stem cell therapy as a novel treatment for neurointestinal diseases are limited by the unavailability of a model system to study cell transplantation in the human intestine. We propose that xenograft models support enteric nervous system (ENS) development in the fetal human intestine when transplanted into mice subcutaneously or intra-abdominally. METHODS: Fetal human small and large intestine were grafted onto the small intestinal mesentery and into the subcutaneous tissue of immunodeficient mice for up to 4 months...
September 8, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28884884/a-randomized-double-blind-placebo-controlled-crossover-style-trial-of-buspirone-in-functional-dysphagia-and-ineffective-esophageal-motility
#16
Nitin Aggarwal, Prashanthi Nagavenkata Thota, Rocio Lopez, Scott Gabbard
BACKGROUND: Studies suggest that Ineffective Esophageal Motility (IEM) is the manometric correlate of Functional Dysphagia (FD). Currently, there is no accepted therapy for either condition. Buspirone is a serotonin modulating medication and has been shown to augment esophageal peristaltic amplitude in healthy volunteers. We aimed to determine if buspirone improves manometric parameters and symptoms in patients with overlapping IEM/FD. METHODS: We performed a prospective, double-blind, placebo-controlled, crossover-style trial of 10 patients with IEM/FD...
September 8, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28872760/relating-gastric-scintigraphy-and-symptoms-to-motility-capsule-transit-and-pressure-findings-in-suspected-gastroparesis
#17
W L Hasler, K P May, L A Wilson, M Van Natta, H P Parkman, P J Pasricha, K L Koch, T L Abell, R W McCallum, L A Nguyen, W J Snape, I Sarosiek, J O Clarke, G Farrugia, J Calles-Escandon, M Grover, J Tonascia, L A Lee, L Miriel, F A Hamilton
BACKGROUND: Wireless motility capsule (WMC) findings are incompletely defined in suspected gastroparesis. We aimed to characterize regional WMC transit and contractility in relation to scintigraphy, etiology, and symptoms in patients undergoing gastric emptying testing. METHODS: A total of 209 patients with gastroparesis symptoms at NIDDK Gastroparesis Consortium centers underwent gastric scintigraphy and WMCs on separate days to measure regional transit and contractility...
September 5, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28857361/modulation-of-vipergic-phenotype-of-enteric-neurons-by-colonic-biopsy-supernatants-from-patients-with-inflammatory-bowel-diseases-involvement-of-il-6-in-crohn-s-disease
#18
F Soufflet, M Biraud, M Rolli-Derkinderen, B Lardeux, C Trang, E Coron, S Bruley des Varannes, A Bourreille, M Neunlist
BACKGROUND: Neuroplastic changes in the enteric nervous system (ENS) observed during IBD might participate in physiopathological processes. Vasoactive intestinal polypeptide has been shown to be involved in intestinal inflammation and barrier functions. We aimed to investigate the modulation of VIP expression in colonic biopsies of IBD patient, the ability of soluble factors from biopsies to reproduce in vitro these modulations and identify soluble factors responsible. METHODS: VIP and cytokines mRNA expressions were assessed in colonic biopsies of healthy subjects (HS) and IBD patients from inflamed (I) and non-inflamed areas (NI)...
August 31, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28857333/mri-assessment-of-the-postprandial-gastrointestinal-motility-and-peptide-response-in-healthy-humans
#19
A Khalaf, C L Hoad, A Menys, A Nowak, S A Taylor, S Paparo, M Lingaya, Y Falcone, G Singh, R C Spiller, P A Gowland, L Marciani, G W Moran
BACKGROUND: Feeding triggers inter-related gastrointestinal (GI) motor, peptide and appetite responses. These are rarely studied together due to methodological limitations. Recent MRI advances allow pan-intestinal, non-invasive assessment of motility in the undisturbed gut. This study aimed to develop a methodology to assess pan-intestinal motility and transit in a single session using MRI and compare imaging findings to GI peptide responses to a test meal and symptoms in a healthy volunteer cohort...
August 31, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28851005/colonic-immune-cells-in-irritable-bowel-syndrome-a-systematic-review-and-meta-analysis
#20
REVIEW
M Bashashati, S Moossavi, C Cremon, M R Barbaro, S Moraveji, G Talmon, N Rezaei, P A Hughes, Z X Bian, C H Choi, O Y Lee, M Coëffier, L Chang, L Ohman, M J Schmulson, R W McCallum, M Simren, K A Sharkey, G Barbara
BACKGROUND & AIMS: Increases in mucosal immune cells have frequently been observed in irritable bowel syndrome (IBS) patients. However, this finding is not completely consistent between studies, possibly due to a combination of methodological variability, population differences and small sample sizes. We performed a meta-analysis of case-control studies that compared immune cell counts in colonic biopsies of IBS patients and controls. METHODS: PubMed and Embase were searched in February 2017...
August 29, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
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