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Irritable colon syndrome

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https://www.readbyqxmd.com/read/28079347/the-diagnostic-challenge-of-symptomatic-uncomplicated-diverticular-disease
#1
Cesare Cremon, Lara Bellacosa, Maria R Barbaro, Rosanna F Cogliandro, Vincenzo Stanghellini, Giovanni Barbara
Colonic diverticulosis is a common condition in Western industrialized countries occurring in up to 65% of people over the age of 60 years. Only a minority of these subjects (about 10- 25%) experience symptoms, fulfilling Rome criteria for irritable bowel syndrome (IBS) diagnosis (IBS-like symptoms) in 10 to 66% of cases. Symptomatic uncomplicated diverticular disease (SUDD) is a syndrome characterized by recurrent abdominal symptoms attributed to diverticula in the absence of macroscopically evident alterations other than the presence of diverticula...
January 12, 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28070176/advances-in-ibs-2016-a-review-of-current-and-emerging-data
#2
Philip S Schoenfeld
Irritable bowel syndrome (IBS) is characterized by chronic intermittent abdominal pain and associated diarrhea (IBS-D), constipation (IBS-C), or both. IBS can significantly impact patient function and quality of life. The diagnosis of IBS is based on the presence of characteristic symptoms, the exclusion of concerning features, and selected tests to exclude organic diseases that can mimic IBS. The pathophysiology of IBS remains incompletely understood, and new contributing factors have been identified over the past decade...
August 2016: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28066860/is-it-possible-to-distinguish-irritable-bowel-syndrome-with-constipation-from-functional-constipation
#3
M Bouchoucha, G Devroede, C Bon, B Bejou, F Mary, R Benamouzig
BACKGROUND: The Rome III criteria classify patients complaining of constipation into two main groups: patients with functional constipation (FC) and patients with constipation predominant irritable bowel syndrome (IBS-C). The purpose of this study was to identify differences in the intensity of symptoms and total and segmental colonic transit time in these two types of patients. METHODS: We performed a prospective evaluation of 337 outpatients consecutively referred for chronic constipation and classified according to the Rome III criteria as FC or IBS-C...
January 9, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28059627/structural-and-functional-alterations-in-the-colonic-microbiome-of-the-rat-in-a-model-of-stress-induced-irritable-bowel-syndrome
#4
Nicolaas H Fourie, Dan Wang, Sarah K Abey, Amy L Creekmore, Shuangsong Hong, Christiana G Martin, John W Wiley, Wendy A Henderson
Stress is known to perturb the microbiome and exacerbate irritable bowel syndrome (IBS) associated symptoms. Characterizing structural and functional changes in the microbiome is necessary to understand how alterations affect the biomolecular environment of the gut in IBS. Repeated water avoidance (WA) stress was used to induce IBS-like symptoms in rats. The colon-mucosa associated microbiome was characterized in 13 stressed and control animals by 16S sequencing. In silico analysis of the functional domains of microbial communities was done by inferring metagenomic profiles from 16S data...
January 6, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28056732/development-of-a-radiolabeled-amlodipine-analog-for-l-type-calcium-channel-imaging
#5
Tahereh Firouzyar, Amir Reza Jalilian, Mohammad Reza Aboudzadeh, Hossein Sadeghpour, Mehrban Pooladi, Mahdi Shafiee-Ardestani, Ali Khalaj
PURPOSE: The non-invasive imaging and quantification of L-type calcium channels in living tissues is of great interest in diagnosis of congestive heart failure, myocardial hypertrophy, irritable bowel syndrome etc. METHODS: Technetium-<sup>99m</sup> labeled amlodipine conjugate ([<sup>99m</sup>Tc]-DTPA-AMLO) was prepared starting freshly eluted (<1 h) <sup>99m</sup>Technetium pertechnetate (86.5 MBq) and conjugated DTPA-AMLO at pH 5 in 30 min at room temperature in high radiochemical purity (>99%, RTLC; specific activity: 55-60 GBq/mmol)...
January 4, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28053879/lysozyme-association-with-circulating-rna-extracellular-vesicles-and-chronic-stress
#6
Sarah K Abey, Yuana Yuana, Paule V Joseph, Natnael D Kenea, Nicolaas H Fourie, LeeAnne B Sherwin, Gregory E Gonye, Paul A Smyser, Erin S Stempinski, Christina M Boulineaux, Kristen R Weaver, Christopher K E Bleck, Wendy A Henderson
BACKGROUND: Stress has demonstrated effects on inflammation though underlying cell-cell communication mechanisms remain unclear. We hypothesize that circulating RNAs and extracellular vesicles (EVs) in patients with chronic stress contain signals with functional roles in cell repair. METHODS: Blood transcriptome from patients with Irritable Bowel Syndrome versus controls were compared to identify signaling pathways and effectors. Plasma EVs were isolated (size-exclusion chromatography) and characterized for effectors' presence (immunogold labelling-electron microscopy)...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28044050/piezo2-a-candidate-biomarker-for-visceral-hypersensitivity-in-irritable-bowel-syndrome
#7
Tao Bai, Ying Li, Jing Xia, Yudong Jiang, Lei Zhang, Huan Wang, Wei Qian, Jun Song, Xiaohua Hou
Background/Aim: Currently, there exists no biomarker for visceral hypersensitivity in Irritable Bowel Syndrome (IBS). Piezo proteins have been proven to play an important role in the mechanical stimulation to induce visceral pain in other tissues and may also be a biomarker candidate. The aim of this study was to test the expressions of Piezo1 and Piezo2 proteins in the intestinal epithelial cells from different intestinal segments and to explore the correlation between Piezo proteins expression and visceral pain threshold...
January 2, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28028368/nodular-lymphoid-hyperplasia-a-marker-of-low-grade-inflammation-in-irritable-bowel-syndrome
#8
Anna Chiara Piscaglia, Lucrezia Laterza, Valentina Cesario, Viviana Gerardi, Rosario Landi, Loris Riccardo Lopetuso, Giovanni Calò, Giovanna Fabbretti, Massimo Brisigotti, Maria Loredana Stefanelli, Antonio Gasbarrini
AIM: To evaluate the prevalence of nodular lymphoid hyperplasia (NLH) in adult patients undergoing colonoscopy and its association with known diseases. METHODS: We selected all cases showing NLH at colonoscopy in a three-year timeframe, and stratified them into symptomatic patients with irritable bowel syndrome (IBS)-type symptoms or suspected inflammatory bowel disease (IBD), and asymptomatic individuals undergoing endoscopy for colorectal cancer screening. Data collection included medical history and final diagnosis...
December 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28000477/probiotic-effectiveness-nutrition-in-cancer-treatment-and-prevention
#9
Débora Mara Kich, Angélica Vincenzi, Fernanda Majolo, Claucia Fernanda Volken de Souza, Márcia Inês Goettert
Among the neoplasias, colorectal cancer is one of the leading causes of cancer death in men and women. The increasing incidence of this type of cancer is due to the increase in the population's life expectancy, by the increase in chronic inflammatory bowel diseases, primarily ulcerative colitis and Crohn's disease, and the change in eating habits. The American Cancer Society (2011) shows that diet might be responsible for approximately 30% of cancer cases in developed countries, moreover when considering only colorectal cancer, the number can reach 30% to 50%...
November 29, 2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/27958282/distinct-abnormalities-of-small-bowel-and-regional-colonic-volumes-in-subtypes-of-irritable-bowel-syndrome-revealed-by-mri
#10
Ching Lam, Gemma Chaddock, Luca Marciani Laurea, Carolyn Costigan, Eleanor Cox, Caroline Hoad, Susan Pritchard, Penny Gowland, Robin Spiller
OBJECTIVES: Non-invasive biomarkers which identify different mechanisms of disease in subgroups of irritable bowel syndrome (IBS) could be valuable. Our aim was to seek useful magnetic resonance imaging (MRI) parameters that could distinguish each IBS subtypes. METHODS: 34 healthy volunteers (HV), 30 IBS with diarrhea (IBS-D), 16 IBS with constipation (IBS-C), and 11 IBS with mixed bowel habit (IBS-M) underwent whole-gut transit and small and large bowel volumes assessment with MRI scans from t=0 to t=360 min...
December 13, 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27957327/altered-expression-of-butyrophilin-btn-and-btn-like-btnl-genes-in-intestinal-inflammation-and-colon-cancer
#11
Cristina Lebrero-Fernández, Ulf Alexander Wenzel, Paulina Akeus, Ying Wang, Hans Strid, Magnus Simrén, Bengt Gustavsson, Lars G Börjesson, Susanna L Cardell, Lena Öhman, Marianne Quiding-Järbrink, Anna Bas-Forsberg
Several Butyrophilin (BTN) and Btn-like (BTNL) molecules control T lymphocyte responses, and are genetically associated with inflammatory disorders and cancer. In this study, we present a comprehensive expression analysis of human and murine BTN and BTNL genes in conditions associated with intestinal inflammation and cancer. Using real-time PCR, expression of human BTN and BTNL genes was analyzed in samples from patients with ulcerative colitis, irritable bowel syndrome, and colon tumors. Expression of murine Btn and Btnl genes was examined in mouse models of spontaneous colitis (Muc2(-/-)) and intestinal tumorigenesis (Apc(Min/+))...
June 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27920467/possible-therapeutic-role-of-ige-blockade-in-irritable-bowel-syndrome
#12
EDITORIAL
Eli Magen, Tinatin Chikovani
Omalizumab is a humanized monoclonal antibody that binds to the high-affinity type-I IgE Fc receptors on mast cells (MCs) and basophils, inhibiting the IgE immune pathway. Irritable bowel syndrome (IBS) is the most common functional gastrointestinal disorder, and dysregulation of the immune system likely contributes to its etiology and/or symptomatology. Colonic biopsies from patients with IBS demonstrate considerable increase in the number of degranulating MCs releasing histamine in proximity to nerves, and this event may underlie the common IBS symptom of abdominal pain...
November 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27919824/melatonin-s-role-as-a-co-adjuvant-treatment-in-colonic-diseases-a-review
#13
REVIEW
Eduardo Esteban-Zubero, Laura López-Pingarrón, Moisés Alejandro Alatorre-Jiménez, Purificación Ochoa-Moneo, Celia Buisac-Ramón, Miguel Rivas-Jiménez, Silvia Castán-Ruiz, Ángel Antoñanzas-Lombarte, Dun-Xian Tan, José Joaquín García, Russel J Reiter
Melatonin is produced in the pineal gland as well as many other organs, including the enterochromaffin cells of the digestive mucosa. Melatonin is a powerful antioxidant that resists oxidative stress due to its capacity to directly scavenge reactive species, to modulate the antioxidant defense system by increasing the activities of antioxidant enzymes, and to stimulate the innate immune response through its direct and indirect actions. In addition, the dysregulation of the circadian system is observed to be related with alterations in colonic motility and cell disruptions due to the modifications of clock genes expression...
December 2, 2016: Life Sciences
https://www.readbyqxmd.com/read/27898588/the-gut-peptide-neuropeptide-y-and-post-traumatic-stress-disorder
#14
Ann M Rasmusson
PURPOSE OF REVIEW: This article reviews the role of neuropeptide Y (NPY) in the pathophysiology of post-traumatic stress disorder (PTSD) and gastrointestinal disorders such as irritable bowel syndrome (IBS) with which PTSD is highly comorbid. NPY is low in the cerebrospinal fluid and plasma of male combat veterans with PTSD and correlates negatively with sympathetic nervous system (SNS) hyperreactivity, PTSD symptoms and time to recovery. NPY regulation has not yet been evaluated in women with PTSD...
February 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27895427/irritable-bowel-syndrome-evaluation-using-computed-tomography-colonography
#15
Hideki Ohgo, Hiroyuki Imaeda, Minoru Yamaoka, Kazuaki Yoneno, Naoki Hosoe, Takeshi Mizukami, Hidetomo Nakamoto
AIM: To evaluate the morphology of the colon in patients with irritable bowel syndrome (IBS) by using computed tomography colonography (CTC). METHODS: Twelve patients with diarrhea type IBS (IBS-D), 13 patients with constipation type IBS (IBS-C), 12 patients with functional constipation (FC) and 14 control patients underwent colonoscopy following CTC. The lengths of the rectosigmoid colon, transverse colon and the total colon were measured. The diameters of the rectum, sigmoid colon, descending colon, transverse colon, and ascending colon were measured...
November 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27893818/trends-in-irritable-bowel-syndrome-incidence-among-taiwanese-adults-during-2003-2013-a-population-based-study-of-sex-and-age-differences
#16
Chieh-Hsin Pan, Chun-Chao Chang, Chien-Tien Su, Pei-Shan Tsai
BACKGROUND: No population-based irritable bowel syndrome (IBS) incidence data among Taiwanese adults are available. Whether IBS is associated with risk of organic colonic diseases remains unanswered. We investigated 1) the sex- and age-stratified trends in the annual incidence of IBS, and 2) the risk of selected organic diseases in patients with IBS compared with those without IBS among Taiwanese adults during 2003-2013. METHODS: Medical claims data for 1 million randomly selected beneficiaries were obtained and analyzed...
2016: PloS One
https://www.readbyqxmd.com/read/27884273/50-years-ago-in-the-journal-of-pediatrics-the-irritable-colon-of-childhood-chronic-nonspecific-diarrhea-syndrome
#17
Michael K Farrell
No abstract text is available yet for this article.
December 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27881072/patients-with-longstanding-ulcerative-colitis-in-remission-do-not-have-more-irritable-bowel-syndrome-like-symptoms-than-controls
#18
D Lundgren, J Rutegård, V Eklöf, R Palmqvist, P Karling
BACKGROUND: Irritable bowel syndrome (IBS) is more common in patients with ulcerative colitis (UC) than expected. The prevalence of IBS in patients with UC with longstanding disease is not known. We investigated the prevalence of IBS-like symptoms in patients with UC in remission and longstanding disease in comparison to control subjects. METHODS: Sixty-eight patients with UC and 33 patients with hereditary familiar colon cancer and who underwent colonoscopy surveillance were included...
November 24, 2016: BMC Gastroenterology
https://www.readbyqxmd.com/read/27869798/gluten-induced-symptoms-in-diarrhea-predominant-irritable-bowel-syndrome-are-associated-with-increased-myosin-light-chain-kinase-activity-and-claudin-15-expression
#19
Richard L Wu, Maria I Vazquez-Roque, Paula Carlson, Duane Burton, Madhusudan Grover, Michael Camilleri, Jerrold R Turner
The mechanisms underlying diarrhea-predominant irritable bowel syndrome (IBS-D) are poorly understood, but increased intestinal permeability is thought to contribute to symptoms. A recent clinical trial of gluten-free diet (GFD) demonstrated symptomatic improvement, relative to gluten-containing diet (GCD), which was associated with reduced intestinal permeability in non-celiac disease IBS-D patients. The aim of this study was to characterize intestinal epithelial tight junction composition in IBS-D before and after dietary gluten challenge...
January 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27866394/repeated-otilonium-bromide-administration-prevents-neurotransmitter-changes-in-colon-of-rats-underwent-to-wrap-restraint-stress
#20
Chiara Traini, Stefano Evangelista, Vincent Girod, Maria Simonetta Faussone-Pellegrini, Maria Giuliana Vannucchi
Otilonium bromide (OB) is a spasmolytic drug successfully used for the treatment of irritable bowel syndrome (IBS). Its efficacy has been attributed to the block of L- and T-type Ca(2+) channels and muscarinic and tachykinin receptors in the smooth muscle. Furthermore, in healthy rats, repeated OB administration modified neurotransmitter expression and function suggesting other mechanisms of action. On this basis, we investigated whether repeated OB treatment prevented the functional and neurochemical changes observed in the colon of rats underwent to wrap restrain stress (WRS) a psychosocial stressor considered suitable to reproduce the main IBS signs and symptoms...
November 20, 2016: Journal of Cellular and Molecular Medicine
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