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Functional gastrointestinal disorders

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https://www.readbyqxmd.com/read/27910097/chronic-migraine-an-update-on-physiology-imaging-and-the-mechanism-of-action-of-two-available-pharmacologic-therapies
#1
Sheena K Aurora, Mitchell F Brin
Several lines of research support the hypothesis that migraine is a spectrum of illness, with clinical symptoms that vary along a continuum from episodic migraine to chronic migraine. Physiologic changes may result in episodic migraine evolving into chronic migraine over months to years in susceptible individuals. With chronification, headache frequency increases, becoming more disabling and less responsive to therapy. Neurophysiologic and functional imaging research has reported that chronic migraine may be associated with severity-specific metabolic, functional, and structural abnormalities in the brainstem...
December 2, 2016: Headache
https://www.readbyqxmd.com/read/27908847/homeostasis-of-the-gut-barrier-and-potential-biomarkers
#2
Jerry M Wells, Robert J Brummer, Muriel Derrien, Thomas T MacDonald, Freddy Troost, Patrice D Cani, Vassilia Theodorou, Jan Dekker, Agnes Méheust, Willem M de Vos, Annick Mercenier, Arjen Nauta, Clara L Garcia-Rodenas
The gut barrier plays a crucial role by spatially compartmentalizing bacteria to the lumen through the production of secreted mucus and is fortified by the production of sIgA and antimicrobial peptides and proteins. With exception of sIgA the expression of these protective barrier factors is largely controlled by innate immune recognition of microbial molecular ligands. Several specialized adaptations and checkpoints are operating in the mucosa to scale the immune response according to the threat and prevent overreaction to the trillions of symbionts inhabiting the human intestine...
December 1, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27906116/embracing-change-striated-for-smooth-muscle-replacement-in-esophagus-development
#3
REVIEW
Robert S Krauss, Daisuke Chihara, Anthony I Romer
The esophagus functions to transport food from the oropharyngeal region to the stomach via waves of peristalsis and transient relaxation of the lower esophageal sphincter. The gastrointestinal tract, including the esophagus, is ensheathed by the muscularis externa (ME). However, while the ME of the gastrointestinal tract distal to the esophagus is exclusively smooth muscle, the esophageal ME of many vertebrate species comprises a variable amount of striated muscle. The esophageal ME is initially composed only of smooth muscle, but its developmental maturation involves proximal-to-distal replacement of smooth muscle with striated muscle...
August 8, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27898588/the-gut-peptide-neuropeptide-y-and-post-traumatic-stress-disorder
#4
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...
November 24, 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27890710/in-vivo-and-vitro-characterization-of-the-effects-of-kisspeptin-13-endogenous-ligands-for-gpr54-on-mouse-gastrointestinal-motility
#5
Jinhong Jiang, Weidong Jin, Yali Peng, Zhen He, Lijuan Wei, Shu Li, Xiaoli Wang, Min Chang, Rui Wang
Kisspeptin (KP), the endogenous ligand of GPR54, is a mammalian amidated neurohormone, which belongs to the RF-amide peptide family. However, in contrast with the related members of the RF-amide family, little information is available regarding its role in the gastrointestinal motility. With regard to the recent data suggesting KP play an important role in food intake, and while gastrointestinal motility are closely related to it. Thus, in the present work, effects of central administration of KP-13, one of the endogenous active isoforms, on gastrointestinal motility were investigated...
November 24, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27888864/oesophageal-disease-gastroesophageal-reflux-disease-barrett-s-oesophagus-achalasia-and-eosinophilic-oesophagitis
#6
Xavier Calvet
The most interesting conclusions and/or advances presented at Digestive Disease Week 2016 were the following: a) gastroesophageal reflux disease: proton pump inhibitor-refractory reflux disease is frequently associated with poor treatment adherence, psychiatric comorbidities and functional gastrointestinal disorders. These possible entities should be investigated in all cases of proton pump inhibitor-refractory reflux disease; b) Barrett's oesophagus: the efficacy of screening remains unclear; however, new minimally-invasive techniques such as the cytosponge allow more effective detection, both of Barrett's oesophagus and Barrett's oesophagus-associated dysplasia or neoplasia; c) achalasia: evidence indicates that peroral endoscopic myotomy is as effective as surgery and is a safer alternative; d) eosinophilic oesophagitis: high-dose proton pump inhibitors are required to rule out proton pump inhibitor-responsive eosinophilic oesophagitis; montelukast is not clearly effective in the treatment of eosinophilic oesophagitis, although moderate efficacy cannot be ruled out...
September 2016: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/27888862/functional-and-motor-gastrointestinal-disorders
#7
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/27875504/screening-for-psychosocial-and-family-risk-in-pediatric-gastrointestinal-disorders
#8
Carin Cunningham, Elise Cho, Michele L Shaffer, Miranda C Bradford, Tonya Palermo
OBJECTIVES: Screening for psychosocial comorbidity is recommended for pediatric patients presenting at an initial gastroenterology (GI) outpatient consultation. We developed and evaluated the psychometric properties of the GI Screener to address the need for a screening tool specific to pediatric GI patients. METHODS: 128 patients (8-18 years old, 63% female) and 126 parents completed age-specific versions of the GI Screener and 3 validated psychosocial comparison instruments (The Behavioral Assessment System for Children, The Functional Disability Inventory, The General Functioning scale of the Family Assessment Device) at their initial GI consultation...
December 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/27875502/sniffing-out-paediatric-gastrointestinal-diseases-the-potential-of-volatile-organic-compounds-as-biomarkers-for-disease
#9
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/27875419/new-treatment-options-for-irritable-bowel-syndrome-with-predominant-diarrhea
#10
H Christian Weber
PURPOSE OF REVIEW: Irritable bowel syndrome (IBS) is a highly prevalent gastrointestinal disorder with negative impact on quality of life and it represents a substantial economic burden on healthcare cost. The medical management of IBS remains largely symptomatic. This review provides an update related to the most recently published diagnostic Rome IV criteria for IBS and clinical trial data for novel treatment modalities in IBS targeting the peripheral opioid receptors of the enteric nervous system and the gut microbiota...
November 24, 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27871148/composition-and-diversity-of-mucosa-associated-microbiota-along-the-entire-length-of-the-pig-gastrointestinal-tract-dietary-influences
#11
Jennifer Kelly, Kristian Daly, Andrew W Moran, Sheila Ryan, David Bravo, Soraya P Shirazi-Beechey
Mucosa-associated microbial populations of the gastrointestinal tract are in intimate contact with the outer mucus layer. This proximity offers these populations a higher potential, than lumenal microbiota, in exerting effects on the host. Functional characteristics of the microbiota and influences of host- physiology shape the composition and activity of the mucosa-associated bacterial community. We have shown previously that inclusion of an artificial sweetener, SUCRAM, included in the diet of weaning piglets modulates the composition of lumenal-residing gut microbiota and reduces weaning-related gastrointestinal disorders...
November 21, 2016: Environmental Microbiology
https://www.readbyqxmd.com/read/27869805/engineered-human-pluripotent-stem-cell-derived-intestinal-tissues-with-a-functional-enteric-nervous-system
#12
Michael J Workman, Maxime M Mahe, Stephen Trisno, Holly M Poling, Carey L Watson, Nambirajan Sundaram, Ching-Fang Chang, Jacqueline Schiesser, Philippe Aubert, Edouard G Stanley, Andrew G Elefanty, Yuichiro Miyaoka, Mohammad A Mandegar, Bruce R Conklin, Michel Neunlist, Samantha A Brugmann, Michael A Helmrath, James M Wells
The enteric nervous system (ENS) of the gastrointestinal tract controls many diverse functions, including motility and epithelial permeability. Perturbations in ENS development or function are common, yet there is no human model for studying ENS-intestinal biology and disease. We used a tissue-engineering approach with embryonic and induced pluripotent stem cells (PSCs) to generate human intestinal tissue containing a functional ENS. We recapitulated normal intestinal ENS development by combining human-PSC-derived neural crest cells (NCCs) and developing human intestinal organoids (HIOs)...
November 21, 2016: Nature Medicine
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/27866330/human-gut-microbiota-the-links-with-dementia-development
#14
REVIEW
Rashad Alkasir, Jing Li, Xudong Li, Miao Jin, Baoli Zhu
Dementia is a comprehensive category of brain diseases that is great enough to affect a person's daily functioning. The most common type of dementia is Alzheimer's disease, which makes most of cases. New researches indicate that gastrointestinal tract microbiota are directly linked to dementia pathogenesis through triggering metabolic diseases and low-grade inflammation progress. A novel strategy is proposed for the management of these disorders and as an adjuvant for psychiatric treatment of dementia and other related diseases through modulation of the microbiota (e...
November 19, 2016: Protein & Cell
https://www.readbyqxmd.com/read/27863345/suppression-of-tnf-%C3%AE-and-free-radicals-reduces-systematic-inflammatory-and-metabolic-disorders-radioprotective-effects-of-ginseng-oligopeptides-on-intestinal-barrier-function-and-antioxidant-defense
#15
Li-Xia He, Jun-Bo Wang, Bin Sun, Jian Zhao, Lin Li, Teng Xu, Hui Li, Jing-Qin Sun, Jinwei Ren, Rui Liu, Qi-He Chen, Zhao-Feng Zhang, Yong Li
Irradiation therapy is markedly associated with intestinal injure and oxidant stress. This study aimed to investigate the effects of ginseng (Panax ginseng C.A. Mey.) oligopeptides (GOP) on irradiation-induced intestinal injury and antioxidant defense in mice. BALB/c mice (8 weeks old) were randomly divided into six groups: vehicle control, irradiation control (IR), IR+whey protein [0.30 g/kg body weight (BW)], IR+GOP 0.15 g/kg BW, IR+GOP 0.30 g/kg BW and IR+GOP 0.60 g/kg BW. Postirradiation 30-day survival trial, white blood cells count and bone marrow hematopoietic system damage were performed to identify the injury degree induced by irradiation...
October 26, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27862814/gut-feelings-about-diabetes-and-glp-1-receptor-agonists-lessons-to-be-learnt-from-studies-in-functional-gastrointestinal-disorders
#16
EDITORIAL
Christopher K Rayner, Karen L Jones, Tongzhi Wu, Michael Horowitz
No abstract text is available yet for this article.
November 9, 2016: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27862680/the-natural-history-of-gastro-esophageal-reflux-disease-a-comprehensive-review
#17
REVIEW
E Savarino, N de Bortoli, C De Cassan, M Della Coletta, O Bartolo, M Furnari, A Ottonello, E Marabotto, G Bodini, V Savarino
Gastroesophageal reflux disease (GERD) is a common disorder of the upper gastrointestinal tract which is typically characterized by heartburn and acid regurgitation. These symptoms are widespread in the community and range from 2.5% to more than 25%. Economic analyses showed an increase in direct and indirect costs related to the diagnosis, treatment and surveillance of GERD and its complications. The aim of this review is to provide current information regarding the natural history of GERD, taking into account the evolution of its definition and the worldwide gradual change of its epidemiology...
November 9, 2016: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/27862259/the-association-between-gastroesophageal-reflux-disease-gerd-with-sleep-quality-depression-and-anxiety-in-a-cohort-study-of-australian-men
#18
Zhi Xiang On, Janet Grant, Zumin Shi, Anne W Taylor, Gary A Wittert, Phillip J Tully, Amie C Hayley, Sean Martin
BACKGROUND & AIM: Previous clinical studies have demonstrated a relationship between gastro-esophageal reflux disease (GERD) with anxiety and depression; however few population-based studies have controlled for sleep disorders. The current study aimed to assess the relationship between GERD and anxiety, depression, and sleep disorders in a community-based sample of Australian men. METHODS: Participants comprised a sub-set of 1,612 men (mean age: 60.7 years, range: 35 - 80) who participated in the Men Androgen Inflammation Lifestyle Environment and Stress (MAILES) Study during the years 2001-2012, who had complete GERD measures [Gastresophageal Reflux Disease Questionnaire (GerdQ)] and were not taking medications known to impact gastrointestinal function (excluding drugs taken for acid-related disorders)...
November 11, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27856622/in-vitro-fermentation-of-b-gos-impact-on-faecal-bacterial-populations-and-metabolic-activity-in-autistic-and-non-autistic-children
#19
Roberta Grimaldi, Drinalda Cela, Jonathan R Swann, Jelena Vulevic, Glenn R Gibson, George Tzortzis, Adele Costabile
Children with autism spectrum disorders (ASD) often suffer gastrointestinal problems consistent with imbalances in the gut microbial population. Treatment with antibiotics or pro/prebiotics has been postulated to regulate microbiota and improve gut symptoms, but there is a lack of evidence for such approaches, especially for prebiotics. This study assessed the influence of a prebiotic galactooligosaccharide (B-GOS) on gut microbial ecology and metabolic function using faecal samples from autistic and non-autistic children in an in vitro gut model system...
November 16, 2016: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/27849120/review-gut-microbiota-and-functional-diseases-of-the-gastrointestinal-tract
#20
Nicola Imperatore, Raffaella Tortora, Filomena Morisco, Nicola Caporaso
INTRODUCTION: Functional gastrointestinal disorders (FGIDs) are a common group of chronic gastrointestinal (GI) diseases defined by symptom-based diagnostic criteria, which consider chronic or recurrent symptoms of the GI tract in the absence of other organic or biochemical reasons. Recent evidences have been highlighted the role of gut microbiota in the pathophysiology of the FGIDs. EVIDENCE ACQUISITION: We focused our attention on critically analysis of the existing literature on the role of gut microbiota in FGIDs, by evaluating the differences of composition, functions and role of intestinal flora in FGIDs of the upper and lower gastrointestinal tract...
November 16, 2016: Minerva Gastroenterologica e Dietologica
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