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https://www.readbyqxmd.com/read/27927062/the-possible-role-of-gastrointestinal-endocrine-cells-in-the-pathophysiology-of-irritable-bowel-syndrome
#1
Magdy El-Salhy, Trygve Hausken, Odd Helge Gilja, Jan Gunnar Hatlebakk
The etiology of irritable bowel syndrome (IBS) is unknown, but several factors appear to play a role in its pathophysiology, including abnormalities of the gastrointestinal endocrine cells. The present review illuminates the possible role of gastrointestinal hormones in the pathophysiology of IBS and the possibility of utilizing the current knowledge in treating the disease. Areas covered: Research into the intestinal endocrine cells and their possible role in the pathophysiology of IBS is discussed. Furthermore, the mechanisms underlying the abnormalities in the gastrointestinal endocrine cells in IBS patients are revealed...
December 7, 2016: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27919824/melatonin-s-role-as-a-co-adjuvant-treatment-in-colonic-diseases-a-review
#2
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/27902515/comparison-of-health-related-quality-of-life-and-disability-in-ulcerative-colitis-patients-following-restorative-proctocolectomy-with-ileal-pouch-anal-anastomosis-versus-anti-tumor-necrosis-factor-therapy
#3
Sara van Gennep, Saloomeh Sahami, Christianne J Buskens, Gijs R van den Brink, Cyriel Y Ponsioen, André D'Hoore, Anthony de Buck van Overstraeten, Gert van Assche, Marc Ferrante, Séverine Vermeire, Willem A Bemelman, Geert R A M D'Haens, Mark Löwenberg
BACKGROUND AND AIMS: Health-related quality of life (HRQL) and disability were compared in ulcerative colitis (UC) patients who underwent restorative proctocolectomy versus patients who received treatment with anti-tumor necrosis factor (anti-TNF) agents. PATIENTS AND METHODS: UC patients who underwent restorative proctocolectomy or started anti-TNF treatment between January 2010 and January 2015 were included at two tertiary referral centers. A matched cohort was created using propensity score matching for the covariates disease duration, Montreal classification, age, and sex...
November 29, 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27895892/sexual-dimorphism-in-the-mast-cell-transcriptome-and-the-pathophysiological-responses-to-immunological-and-psychological-stress
#4
Emily Mackey, Saravanan Ayyadurai, Calvin S Pohl, Susan D' Costa, Yihang Li, Adam J Moeser
BACKGROUND: Biological sex plays a prominent role in the prevalence and severity of a number of important stress-related gastrointestinal and immune-related diseases including IBS and allergy/anaphylaxis. Despite the establishment of sex differences in these diseases, the underlying mechanisms contributing to sex differences remain poorly understood. The objective of this study was to define the role of biological sex on mast cells (MCs), an innate immune cell central to the pathophysiology of many GI and allergic disorders...
2016: Biology of Sex Differences
https://www.readbyqxmd.com/read/27895859/dysbiosis-of-fecal-microbiota-and-high-frequency-of-citrobacter-klebsiella-spp-and-actinomycetes-in-patients-with-irritable-bowel-syndrome-and-gastroenteritis
#5
Leila Ganji, Masoud Alebouyeh, Mohammad Hassan Shirazi, Seyed Saeed Eshraghi, Abbas Mirshafiey, Naser Ebrahimi Daryani, Mohammad Reza Zali
AIM: This study was aimed to characterize putative differences of fecal microbiota between irritable bowel syndrome (IBS) and gastroenteritis patients and healthy controls. BACKGROUND: New evidence proposed that gut microbiota has a deep effect on the balance between health and disease. PATIENTS AND METHODS: The presence of Clostridium difficile, Campylobacter spp., Enterobacteriacea and Staphylococci were detected in the samples using selective and specific culture media...
2016: Gastroenterology and Hepatology From Bed to Bench
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
#6
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/27891639/consensus-report-faecal-microbiota-transfer-clinical-applications-and-procedures
#7
REVIEW
J König, A Siebenhaar, C Högenauer, P Arkkila, M Nieuwdorp, T Norén, C Y Ponsioen, U Rosien, N G Rossen, R Satokari, A Stallmach, W de Vos, J Keller, R J Brummer
BACKGROUND: Faecal microbiota transplantation or transfer (FMT) aims at replacing or reinforcing the gut microbiota of a patient with the microbiota from a healthy donor. Not many controlled or randomised studies have been published evaluating the use of FMT for other diseases than Clostridium difficile infection, making it difficult for clinicians to decide on a suitable indication. AIM: To provide an expert consensus on current clinical indications, applications and methodological aspects of FMT...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27888862/functional-and-motor-gastrointestinal-disorders
#8
Fermín Mearin, Enrique Rey, Agustín Balboa
This article discusses the most interesting presentations at Digestive Disease Week, held in San Diego, in the field of functional and motor gastrointestinal disorders. One of the most important contributions was undoubtedly the presentation of the new Rome IV diagnostic criteria for functional gastrointestinal disorders. We therefore devote some space in this article to explaining these new criteria in the most common functional disorders. In fact, there has already been discussion of data comparing Rome IV and Rome III criteria in the diagnosis of irritable bowel syndrome, confirming that the new criteria are somewhat more restrictive...
September 2016: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/27881072/patients-with-longstanding-ulcerative-colitis-in-remission-do-not-have-more-irritable-bowel-syndrome-like-symptoms-than-controls
#9
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/27875502/sniffing-out-paediatric-gastrointestinal-diseases-the-potential-of-volatile-organic-compounds-as-biomarkers-for-disease
#10
Martin Buijck, Daniel J C Berkhout, Evelien F J de Groot, Marc A Benninga, Marc P C van der Schee, Corneille Marie Frank Kneepkens, Nanne K H de Boer, Tim G J de Meij
The diagnostic work-up and follow-up of paediatric functional gastrointestinal disorders and organic conditions usually includes invasive tests, carrying a high burden on patients. There is a place, therefore, for novel, noninvasive disease-specific biomarkers. Volatile organic compounds (VOCs), originating from (patho)physiological metabolic processes in the human body, are excreted as waste products through all conceivable bodily excrements. The spectrum of VOCs harbours a magnificent source of information, with the potential to serve as noninvasive diagnostic biomarkers and to monitor disease activity...
December 2016: Journal of Pediatric Gastroenterology and Nutrition
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
#11
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...
November 21, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27869566/gastrointestinal-comorbidities-which-complicate-the-treatment-of-anorexia-nervosa
#12
Margherita Mascolo, Bashir Geer, Joshua Feuerstein, Philip S Mehler
Patients with anorexia nervosa often voice a multitude of symptoms in regards to their gastrointestinal tract. These complaints can complicate the treatment of their eating disorder as they distract attention from the important goal of weight restoration. Moreover, the restricting of certain food groups also makes the task of weight restoration substantially more difficult, or may result in binging. Therefore a working knowledge of common gastrointestinal comorbidities, such as celiac disease, irritable bowel syndrome, inflammatory bowel disease, and gastroparesis, is useful when treating a patient who has anorexia nervosa...
November 21, 2016: Eating Disorders
https://www.readbyqxmd.com/read/27867690/good-adherence-to-mediterranean-diet-can-prevent-gastrointestinal-symptoms-a-survey-from-southern-italy
#13
Francesco Paolo Zito, Barbara Polese, Letizia Vozzella, Antonietta Gala, Daniela Genovese, Viviana Verlezza, Fabiana Medugno, Antonello Santini, Luigi Barrea, Martina Cargiolli, Paolo Andreozzi, Giovanni Sarnelli, Rosario Cuomo
AIM: To evaluate how different levels of adherence to a mediterranean diet (MD) correlate with the onset of functional gastrointestinal disorders. METHODS: As many as 1134 subjects (598 M and 536 F; age range 17-83 years) were prospectively investigated in relation to their dietary habits and the presence of functional gastrointestinal symptoms. Patients with relevant chronic organic disease were excluded from the study. The Mediterranean Diet Quality index for children and adolescents (KIDMED) and the Short Mediterranean Diet Questionnaire were administered...
November 6, 2016: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27862281/comparison-of-the-rome-iv-and-rome-iii-criteria-for-ibs-diagnosis-a-cross-sectional-survey
#14
Tao Bai, Jing Xia, Yudong Jiang, Huan Cao, Yong Zhao, Lei Zhang, Huan Wang, Jun Song, Xiaohua Hou
BACKGROUND AND AIMS: The aims of this study were to investigate the proportion of clinical irritable bowel syndrome (IBS) at a tertiary hospital in China, to compare the Rome III and Rome IV criteria with regard to IBS diagnosis, to describe the agreement between the Rome III and Rome IV criteria, and to identify differences between Rome IV-positive and -negative IBS patients. METHODS: A cross-sectional survey was performed among outpatients in the gastrointestinal (GI) department of a tertiary hospital...
November 10, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27862119/increased-expression-of-nerve-growth-factor-correlates-with-visceral-hypersensitivity-and-impaired-gut-barrier-function-in-diarrhoea-predominant-irritable-bowel-syndrome-a-preliminary-explorative-study
#15
X J Xu, Y L Zhang, L Liu, L Pan, S K Yao
BACKGROUND: Neural-immune-endocrine network mechanism has attracted increased attention in diarrhoea-predominant irritable bowel syndrome (IBS-D). Pre-clinical evidence indicates that nerve growth factor (NGF) mediates visceral hypersensitivity and gut barrier dysfunction, via interactions with mast cells and sensory nerve fibres. AIM: To explore the role of nerve growth factor, as well as mast cell-nerve growth factor-nerve interaction in IBS-D pathophysiology...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27862117/irritable-bowel-syndrome-and-active-inflammatory-bowel-disease-diagnosed-by-faecal-gas-analysis
#16
R B M Aggio, P White, H Jayasena, B de Lacy Costello, N M Ratcliffe, C S J Probert
BACKGROUND: Inflammatory bowel disease and irritable bowel syndrome may present in a similar manner. Measuring faecal calprotectin concentration is often recommended to rule out inflammatory bowel disease, however, there are no tests to positively diagnose irritable bowel syndrome and invasive tests are still used to rule out other pathologies. AIM: To investigate a platform technology for diagnosing inflammatory bowel disease and irritable bowel syndrome based on faecal gas...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27848148/disrupted-functional-connectivity-density-in-irritable-bowel-syndrome-patients
#17
Yifei Weng, Rongfeng Qi, Chang Liu, Jun Ke, Qiang Xu, Fangyu Wang, Long Jiang Zhang, Guang Ming Lu
Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder resulting from a dysregulation of the brain-gut axis. However, its exact neural substrate still remains unclear. This study investigated the changes of intrinsic whole brain functional connectivity pattern in IBS using functional connectivity density (FCD). We acquired resting-state functional magnetic resonance imaging (rs-fMRI) data from thirty-two IBS patients and thirty-two healthy controls. Functional connectivity density, a data-driven algorithm, was used to compute the long-range and short-range FCD values for each voxel in the brain of each subject, implying the amount of distant and local functional connections of cortical hubs...
November 15, 2016: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/27846144/low-alcohol-and-cigarette-use-is-associated-to-the-risk-of-developing-chronic-pancreatitis
#18
Milena Di Leo, Gioacchino Leandro, Satish K Singh, Alberto Mariani, Margherita Bianco, Raffaella Alessia Zuppardo, Elisabetta Goni, Teresa Marzia Rogger, Francesco Di Mario, Mario Guslandi, Francesco De Cobelli, Alessandro Del Maschio, Pier Alberto Testoni, Giulia Martina Cavestro
OBJECTIVES: The aim of this study was to investigate the contribution of smoking and alcohol intake and pancreas divisum on the risk of developing chronic pancreatitis (CP). METHODS: Consecutive patients with CP who underwent secretin-enhanced magnetic resonance cholangiopancreatography were compared with consecutive patients without pancreatic disease who underwent secretin-enhanced magnetic resonance cholangiopancreatography for irritable bowel syndrome. RESULTS: We enrolled 145 consecutive CP patients and 103 irritable bowel syndrome patients from 2010 to 2014...
November 11, 2016: Pancreas
https://www.readbyqxmd.com/read/27832710/radiation-exposure-in-patients-with-inflammatory-bowel-disease-and-irritable-bowel-syndrome-in-the-years-2001-2011
#19
Hanna Englund, Katarina Lidén K, Torbjörn Lind, Torbjörn Sundström, Pontus Karling
OBJECTIVES: To compare cumulative ionizing radiation in patients with inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) for the years 2001-2011. To study how radiation exposure change over time in patients with newly diagnosed IBD and factors associated with radiation exposure. MATERIAL AND METHODS: All radiological investigations performed between 1 January 2001 and 31 December 2011 were retrospectively recorded in patients with Crohn's disease (CD) (n = 103), ulcerative colitis (UC) (n = 304) and IBS (n = 149)...
November 10, 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27822551/individualized-responses-of-gut-microbiota-to-dietary-intervention-modeled-in-humanized-mice
#20
Samuel A Smits, Angela Marcobal, Steven Higginbottom, Justin L Sonnenburg, Purna C Kashyap
Diet plays an important role in shaping the structure and function of the gut microbiota. The microbes and microbial products in turn can influence various aspects of host physiology. One promising route to affect host function and restore health is by altering the gut microbiome using dietary intervention. The individuality of the microbiome may pose a significant challenge, so we sought to determine how different microbiotas respond to the same dietary intervention in a controlled setting. We modeled gut microbiotas from three healthy donors in germfree mice and defined compositional and functional alteration following a change in dietary microbiota-accessible carbohydrates (MACs)...
September 2016: MSystems
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