keyword
MENU ▼
Read by QxMD icon Read
search

Gastrointestinal motility disorders

keyword
https://www.readbyqxmd.com/read/29323774/obesity-impairs-oligopeptide-amino-acid-induced-ghrelin-release-and-smooth-muscle-contractions-in-the-human-proximal-stomach
#1
L Vancleef, T Thijs, F Baert, L J Ceulemans, E Canovai, Q Wang, S Steensels, A Segers, R Farré, J Pirenne, M Lannoo, J Tack, I Depoortere
SCOPE: The satiation properties of proteins involve effects on gut peptide release and gastrointestinal motility which may be altered during obesity. This study compared the in vitro response and role of amino acid (AA) taste receptors (TASR) in the effect of AAs and a casein hydrolysate on ghrelin release and smooth muscle (SM) contractions in the proximal gut of lean and obese patients. METHODS AND RESULTS: Basal ghrelin release, measured from mucosal segments, was maximal in the fundus and decreased distally...
January 11, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29318638/voltage-gated-sodium-channels-nav-igating-the-field-to-determine-their-contribution-to-visceral-nociception
#2
Andelain Erickson, Annemie Deiteren, Andrea M Harrington, Sonia Garcia-Caraballo, Joel Castro, Ashlee Caldwell, Luke Grundy, Stuart M Brierley
Chronic visceral pain, altered motility and bladder dysfunction are common, yet poorly managed symptoms of functional and inflammatory disorders of the gastrointestinal and urinary tracts. Recently, numerous human channelopathies of the voltage-gated sodium (NaV ) channel family have been identified, which induce either painful neuropathies, an insensitivity to pain, or alterations in smooth muscle function. The identification of these disorders, in addition to the recent utilisation of genetically modified NaV mice and specific NaV channel modulators, has shed new light on how NaV channels contribute to the function of neuronal and non-neuronal tissues within the gastrointestinal tract and bladder...
January 9, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29314441/alterations-in-the-gut-barrier-and-involvement-of-toll-like-receptor-4-in-murine-postoperative-ileus
#3
S-S Lin, R-Q Zhang, L Shen, X-J Xu, K Li, A-V Bazhin, J Fichna, Y-Y Li
BACKGROUND: The changes in the gut barrier (GB) and associated mechanisms in postoperative ileus (POI) are still unclear. Toll-like receptor 4 (TLR4) is involved in inflammation, which may cause GB dysfunction and POI. Here, the roles of the GB in POI in relation to TLR4-dependent signaling pathways were explored. METHODS: POI was induced by small bowel manipulation in wild-type (WT) and TLR4-knockout (TLR4-/-) mice. Twenty-four hours after manipulation, indices of gastrointestinal (GI) transit, GB structure and function, inflammation, and related signaling pathways were analyzed...
January 4, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29284389/efficacy-and-safety-of-serotonin-receptor-ligands-in-the-treatment-of-irritable-bowel-syndrome-a-review
#4
Agata Binienda, Martin Storr, Jakub Fichna, Maciej Salaga
Irritable bowel syndrome (IBS) is a chronic, recurrent bowel disorder with an unknown etiology, which is most likely multifactorial. Increased mucosal permeability, visceral hypersensitivity and activation status of intestinal mucosal immune cells cause changes in gastrointestinal (GI) motility, secretion and sensation observed in the course of IBS. Permanent, cumbersome symptoms, such as diarrhea, constipation and abdominal pain greatly lower quality of life of IBS patients. On this basis, according to the Rome IV criteria, different forms of IBS can be distinguished...
December 27, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/29277716/further-investigation-of-the-effects-of-5-hydroxytryptamine-8-oh-dpat-and-doi-to-mediate-contraction-and-relaxation-responses-in-the-intestine-and-emesis-in-suncus-murinus
#5
Farideh A Javid, Saeed Afshin-Javid, Charles C Horn
5-HT receptors are implicated in many gastrointestinal disorders. However, the precise role of 5-HT in mediating GI responses in Suncus murnius is still unclear. Therefore in this study, the effects of 5-HT and its agonists were investigated in Suncus. The involvement of 5-HT2C receptors in mediating emesis was also investigated. The ability of 5-HT and its agonists/antagonists at 5-HT1A and 5-HT2 to modify GI motility was investigated in vitro and in vivo. WAY100635 (a 5-HT1A antagonist) inhibited the contraction response to 5-HT in the proximal segments without affecting the maximum response; whilst enhancing the contraction to 5-HT (>30...
December 22, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29277090/-vomiting
#6
REVIEW
Ga Hee Kim, Kee Wook Jung
Many disorders can cause either acute or chronic vomiting. However, in most cases, vomiting is self-limited. A correct diagnosis is possible by conducting careful histories and physical examinations. In cases of severe vomiting, further testing, including laboratory studies, radiological images, endoscopic evaluation, and gastrointestinal motility tests, can also be considered. The correction of clinical consequences of vomiting should be initiated, including dehydration, electrolyte imbalances, malnutrition, and suppression of symptoms via the use empirical antiemetic treatments...
December 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29274173/investigation-of-autophagy-and-differentiation-of-myenteric-interstitial-cells-of-cajal-in-the-pathogenesis-of-gastric-motility-disorders-in-rats-with-functional-dyspepsia
#7
Li-Min Zhang, Li-Jun Zeng, Jing Deng, Yu-Qin Zhang, Yu-Jiao Wang, Tian-Yi Xie, Jiang-Hong Ling
BACKGROUND: Interstitial cells of Cajal (ICC), especially myenteric interstitial cells of Cajal (ICC-MY), are key to gastrointestinal motility. However, their role in the pathogenesis of functional dyspepsia (FD) is unclear. Therefore, autophagy and differentiation of ICC-MY were investigated to elucidate the pathogenesis of gastric motility disorder in FD. METHODS: FD model was induced by chronic stress via tail clamping in rats, which was assessed by the vital signs of rats, gastric emptying rate result and histology...
December 23, 2017: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/29259559/mechanical-regulation-of-gene-expression-in-gut-smooth-muscle-cells
#8
REVIEW
Xuan-Zheng Shi
Intraluminal contents and their movement along the gastrointestinal tract create shear stress and mechanical stretch on the gut wall. While the shear stress is important in the initiation of immediate physiological responses, the circumferential mechanical stretch, such as that in obstructive bowel disorders, exerts long-lasting impacts on bowel functions by mainly affecting the deeper muscularis externae. Recent studies demonstrate that mechanical stretch alters gene transcription in gut smooth muscle cells (SMC), and the stretch-altered gene expression (mechano-transcription) may play a critical role in pathogenesis of motility dysfunction and abdominal pain in obstruction...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29243034/application-of-pyridostigmine-in-pediatric-gastrointestinal-motility-disorders-a-case-series
#9
Mhd Louai Manini, Michael Camilleri, Rayna Grothe, Carlo Di Lorenzo
BACKGROUND: Gastrointestinal (GI) motility disorders are common in children. Treatment is challenging with limited medical and surgical options. Pyridostigmine, an acetyl cholinesterase inhibitor, increases acetylcholine at the neuromuscular junction promoting intestinal contractions. Little is known about the role and dosing of pyridostigmine in pediatric GI motility disorders. METHODS: We present a case series of children with GI dysmotility managed with oral pyridostigmine...
December 14, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/29242169/c60-fullerenes-disrupt-cellular-signalling-leading-to-trpc4-and-trpc6-channels-opening-by-the-activation-of-muscarinic-receptors-and-g-proteins-in-small-intestinal-smooth-muscles
#10
Dariia O Dryn, Mariia I Melnyk, Lina T Al Kury, Yuriy I Prylutskyy, Uwe Ritter, Alexander V Zholos
The effect of water-soluble pristine C60 fullerene nanoparticles (C60NPs) on receptor-operated cation channels formed by TRPC4/C6 proteins in ileal smooth muscle cells was investigated for the first time. Activation of these channels subsequent to acetylcholine binding to the expressed in these cells M2 and M3 muscarinic receptors represents the key event in the parasympathetic control of gastrointestinal smooth muscle motility and cholinergic excitation-contraction coupling. Experiments were performed on single collagenase-dispersed mouse ileal myocytes using patch-clamp techniques with symmetrical 125mM Cs+ solutions and [Ca2+]i 'clamped' at 100nM in order to isolate the muscarinic cation current (mICAT)...
December 11, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/29224457/treatment-of-vincristine-induced-ileus-with-metoclopramide-a-case-report
#11
Hamidreza T Masoumi, Molouk Hadjibabaie, Morvarid Zarif-Yeganeh, Behrouz Khajeh, Ardeshir Ghavamzadeh
Introduction Acute lymphoblastic leukemia is an invasive malignancy which ought to be treated with several cytotoxic medications. Vincristine-based regimen is among the most commonly used regimens for the treatment of adult acute lymphoblastic leukemia. Peripheral neuropathy caused by vincristine provides a limitation in dose administration and can influence the treatment outcome and patient's quality of life. Case presentation Ileus and constipation occurred as a result of autonomic neuropathy in a 58-year-old man who underwent vincristine-based regimen for acute lymphoblastic leukemia treatment...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/29220864/the-nature-of-catecholamine-containing-neurons-in-the-enteric-nervous-system-in-relationship-with-organogenesis-normal-human-anatomy-and-neurodegeneration
#12
G Natale, L Ryskalin, C L Busceti, F Biagioni, F Fornai
The gastrointestinal tract is provided with extrinsic and intrinsic innervation. The extrinsic innervation includes the classic vagal parasympathetic and sympathetic components, with afferent sensitive and efferent secretomotor fibers. The intrinsic innervations is represented by the enteric nervous system (ENS), which is recognized as a complex neural network controlling a variety of cell populations, including smooth muscle cells, mucosal secretory cells, endocrine cells, microvasculature, immune and inflammatory cells...
September 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/29210639/guanylate-cyclase-c-a-current-hot-target-from-physiology-to-pathology
#13
Jose Antonio Uranga, Marta Castro, Raquel Abalo
Guanylate cyclase C (GC-C) receptor is a transmembrane receptor, predominantly expressed in intestinal epithelial cells, that plays a main role in homeostasis and function of the digestive tract. The endogenous ligands for this receptor are the paracrine hormones uroguanylin and guanylin. The heat-stable enterotoxin, produced by enterotoxigenic bacteria, is also a natural ligand of this receptor. Upon ligand binding, GC-C receptors increase the second messenger cyclic guanosine monophosphate (cGMP) levels, regulating a variety of key cell-type specific processes such as chloride and bicarbonate secretion (which increases luminal fluid and intestinal motility), epithelial cell growth, regulation of intestinal barrier integrity and visceral sensitivity...
December 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29210098/regional-gastrointestinal-contractility-parameters-using-the-wireless-motility-capsule-inter-observer-reproducibility-and-influence-of-age-gender-and-study-country
#14
A D Farmer, A-M L Wegeberg, B Brock, A R Hobson, S D Mohammed, S M Scott, C E Bruckner-Holt, J R Semler, W L Hasler, P M Hellström, A M Drewes, C Brock
BACKGROUND: The wireless motility capsule concurrently measures temperature, pH and pressure as it traverses the gastrointestinal tract. AIMS: To describe normative values for motility/contractility parameters across age, gender and testing centres. METHODS: Healthy participants underwent a standardised wireless motility capsule assessment following an overnight fast and consumption of a meal of known nutritional content. Traces were divided into regions of interest and analysed using 2 software packages (MotiliGI and GIMS Data Viewer)...
December 6, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29205691/intravenous-immunoglobulin-in-drug-and-device-refractory-patients-with-the-symptoms-of-gastroparesis-an-open-label-study
#15
M Ashat, A Lewis, H Liaquat, A Stocker, L McElmurray, V Vedanarayanan, K Soota, T Howell, A Kedar, J Obert, T L Abell
BACKGROUND: Gastroparesis is a complex clinical entity; many aspects of which remain unknown. Although most patients have idiopathic, diabetic, or postsurgical gastroparesis, many are thought to have measurable neuromuscular abnormalities. Immunotherapy has recently been utilized to treat suspected autoimmune gastrointestinal dysmotility. METHODS: Fourteen patients with symptoms of gastroparesis (Gp) who were refractory to drug/device were selected from 443 Gp patients from 2013 to 2015 who were treated at the University of Louisville motility center...
December 4, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29199167/which-diseases-are-risk-factors-for-developing-gastroesophageal-reflux-disease
#16
Filiz Akyüz, Özlem Mutluay Soyer
Although the pathophysiology of gastroesophageal reflux disease (GERD) remains unclear, it is accepted as a multifactorial disease. It is thought that some of the interventions that might cause alterations in the normal gastrointestinal tract anatomy and diseases that affect the lower esophageal sphincter, esophageal clearance, and stomach motility (gastric emptying) might lay a foundation for GERD development. Moreover, it is common knowledge that GERD might cause various extraesophageal symptoms and complications...
December 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/29198923/enteromorpha-and-polysaccharides-from-enteromorpha-ameliorate-loperamide-induced-constipation-in-mice
#17
Xinxiu Ren, Lei Liu, Yaser Gamallat, Bingqiang Zhang, Yi Xin
Slow-transit constipation(STC)is a disease characterized by functional gastrointestinal disorder. Common laxatives used in clinical practice against constipation such as Senna have side effects. Enteromorpha(EP)is a common marine alga, and the polysaccharide extracted from EP has been reported possessing anti-cancer and anti-inflammation effects. The aim of this study is to investigate the effects of EP and Polysaccharides from Enteromorpha (PEP) on loperamide induced constipated mice model and illustrating mechanism of action...
November 30, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29196262/collagen-vi-suppresses-fibronectin-induced-enteric-neural-crest-cell-migration-by-downregulation-of-focal-adhesion-proteins
#18
Shoichi Nishida, Hisayoshi Yoshizaki, Yoshitomo Yasui, Tsuyoshi Kuwahara, Etsuko Kiyokawa, Miyuki Kohno
The enteric nervous system (ENS) is a network of neurons and glia that are derived from enteric neural crest cells (ENCCs) and essential for regulating peristaltic activity of the colon. ENCCs migrate along the gastrointestinal tract to form the ENS, and disruption of ENCC motility leads to ENS disorders, such as Hirschsprung's disease. Previous ENCC-transplant experiments show that ENCCs can invade into isolated mouse intestines by age E13.5, but not after E15.5. We hypothesized that altered age-specific micro-environments in the intestine are responsible for ENCC invasion/migration...
January 1, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29194046/updates-on-the-biology-of-serotonin-and-tryptophan-hydroxylase
#19
Tara Swami, H Christian Weber
PURPOSE OF REVIEW: To summarize the most recent findings relevant to the biology of serotonin (5-hydroxytryptamine; 5-HT) and the enzyme tryptophan hydroxylase (TPH) in human gastrointestinal disease. RECENT FINDINGS: Serotonin is synthesized in the central nervous system (CNS) and the gastrointestinal tract where it is secreted from enteroendocrine cells. Its biosynthesis is regulated by two isoforms of the enzyme TPH of which TPH1 is localized predominantly in gastrointestinal enteroendocrine cells...
February 2018: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/29178261/an-anms-naspghan-consensus-document-on-esophageal-and-antroduodenal-manometry-in-children
#20
REVIEW
R Rosen, J M Garza, N Tipnis, S Nurko
BACKGROUND: Upper gastrointestinal symptoms in children are common and motility disorders are considered in the differential diagnosis. High resolution esophageal manometry (HRM) has revolutionized the study of esophageal physiology, and the addition of impedance has provided new insights into esophageal function. Antroduodenal motility has provided insight into gastric and small bowel function. PURPOSE: This review highlights some of the recent advances in pediatric esophageal and antroduodenal motility testing including indications, preparation, performance, and interpretation of the tests...
November 27, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
keyword
keyword
31903
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"