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Dysmotility

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https://www.readbyqxmd.com/read/29690886/loss-of-alpha-smooth-muscle-actin-expression-associated-with-chronic-intestinal-pseudo-obstruction-in-a-young-miniature-bull-terrier
#1
Gian Enrico Magi, Francesca Mariotti, Sara Berardi, Andrea Piccinini, Cecilia Vullo, Angela Palumbo Piccionello, Giacomo Rossi
BACKGROUND: Chronic intestinal pseudo-obstruction (CIPO) is a rare clinical syndrome in veterinary medicine characterized by severe intestinal dysmotility without evidence of mechanical occlusion of the intestinal lumen. The exact pathogenesis of CIPO is unknown. CASE PRESENTATION: A 1-year-old male Miniature Bull Terrier dog was presented with a history of chronic weight loss, regurgitation, lethargy, vomiting and diarrhea. The dog was submitted for exploratory laparotomy...
April 24, 2018: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/29674596/mfn2-agonists-reverse-mitochondrial-defects-in-preclinical-models-of-charcot-marie-tooth-disease-type-2a
#2
Agostinho G Rocha, Antonietta Franco, Andrzej M Krezel, Jeanne M Rumsey, Justin M Alberti, William C Knight, Nikolaos Biris, Emmanouil Zacharioudakis, James W Janetka, Robert H Baloh, Richard N Kitsis, Daria Mochly-Rosen, R Reid Townsend, Evripidis Gavathiotis, Gerald W Dorn
Mitofusins (MFNs) promote fusion-mediated mitochondrial content exchange and subcellular trafficking. Mutations in Mfn2 cause neurodegenerative Charcot-Marie-Tooth disease type 2A (CMT2A). We showed that MFN2 activity can be determined by Met376 and His380 interactions with Asp725 and Leu727 and controlled by PINK1 kinase-mediated phosphorylation of adjacent MFN2 Ser378 Small-molecule mimics of the peptide-peptide interface of MFN2 disrupted this interaction, allosterically activating MFN2 and promoting mitochondrial fusion...
April 20, 2018: Science
https://www.readbyqxmd.com/read/29670795/pulmonary-vasculitis-and-a-horseshoe-kidney-in-noonan-syndrome
#3
Surasak Puvabanditsin, Rosanna Abellar, Adaora Madubuko, Rajeev Mehta, Lauren Walzer
We report a term male neonate with congenital myeloproliferative disorder, thrombocytopenia, a horseshoe kidney, feeding difficulty secondary to dysphagia/foregut dysmotility, and respiratory failure. Prenatal molecular genetic analysis revealed a fetus carrying c.184T>G (p.Tyr62Asp) pathogenic variant in PTPN11 . The infant eventually succumbed to respiratory failure. Bacterial and viral cultures/studies were all no growth/negative. Pulmonary capillaritis and vasculitis were noted at autopsy. This report presents a new case of Noonan syndrome with unusual associated disorders and a review of the literature...
2018: Case Reports in Pathology
https://www.readbyqxmd.com/read/29667023/liraglutide-effects-on-upper-gastrointestinal-investigations-implications-prior-to-bariatric-surgery
#4
Renuca Modi, Peter Rye, Sarah Cawsey, Daniel W Birch, Arya M Sharma
Liraglutide is a glucagon-like peptide type 1 (GLP-1) analogue that is approved for long-term obesity management in North America. While bariatric surgery remains the gold standard for weight loss, an increasing number of patients are on liraglutide in the setting of ongoing workup for bariatric surgery. The presence of gastrointestinal symptoms prior to bariatric surgery may prompt testing for dysmotility, which affects surgical decision making. Here we report six cases where treatment with liraglutide was associated with reversible reduction in gastric and esophageal motility in screening for bariatric surgery...
April 17, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29644797/altered-gastrointestinal-motility-involving-autoantibodies-in-the-experimental-autoimmune-encephalomyelitis-model-of-multiple-sclerosis
#5
E T Spear, E A Holt, E J Joyce, M M Haag, S M Mawe, G W Hennig, B Lavoie, A M Applebee, C Teuscher, G M Mawe
BACKGROUND: Multiple sclerosis (MS) is an autoimmune disease of the central nervous system that, in addition to motor, sensory, and cognitive symptoms, also causes constipation, which is poorly understood. Here, we characterize gastrointestinal (GI) dysmotility in the experimental autoimmune encephalomyelitis (EAE) mouse model of MS and evaluate whether autoantibodies target the enteric nervous system (ENS) and cause dysmotility. METHODS: EAE was induced in male SJL and B6 mice...
April 11, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29643873/gastric-emptying-scintigraphy-in-postprandial-distress-syndrome
#6
Muhammad Hafeez, Fida Hussain, Amjad Salamat, Muhammad Bilal Khan
Objective: To find out the pattern of gastric emptying scintigraphy (GES) in patients with post prandial distress syndrome (PDS). Methods: This study was carried out from January 2015 to July 2016 at Combined Military Hospital (CMH) Kharian and Nuclear Medical Centre (NMC) of Armed Forces Institute of Pathology (AFIP) Rawalpindi. Patient's inclusion criteria were dyspepsia of post prandial distress type for more than six months duration. Patients with dyspepsia due to epigastric pain syndrome and other organic disorder were excluded...
January 2018: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29628208/complex-gastroschisis-clinical-spectrum-and-neonatal-outcomes-at-a-referral-center
#7
Pablo Laje, Maria V Fraga, William H Peranteau, Holly L Hedrick, Nahla Khalek, Juliana S Gebb, Julie S Moldenhauer, Mark P Johnson, Alan W Flake, N Scott Adzick
AIM OF THE STUDY: To evaluate the outcomes of neonates with complex gastroschisis (GC), and correlate outcomes with each type of complication. METHODS: Retrospective review of patients with complex GC owing to prenatal and/or postnatal abdominal complications; 2008-2016. Primary outcomes: time to discontinue parenteral nutrition (off-PN), length of stay (LOS) and neonatal survival. MAIN RESULTS: We treated 58 patients with complex gastroschisis owing to abdominal complications, which were: intestinal necrosis at birth (n=9), intestinal atresia (n=16), medical necrotizing enterocolitis (NEC) (n=15), surgical NEC (n=1), in utero volvulus (n=1), vanishing gastroschisis (n=2), severe intestinal dysmotility (n=1), delayed abdominal closure (n=3), abdominal compartment syndrome (n=2) and hiatal hernia/severe gastroesophageal reflux disease (GERD; n=11)...
March 14, 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29601941/different-profile-of-cytokine-production-in-patients-with-systemic-sclerosis-and-association-with-clinical-manifestations
#8
Andréa Tavares Dantas, Anderson Rodrigues de Almeida, Maria Clara Pinheiro Duarte Sampaio, Marina Ferraz Cordeiro, Priscilla Stela Santana de Oliveira, Henrique de Ataíde Mariz, Michelly Cristiny Pereira, Moacyr Jesus Barreto de Melo Rego, Ivan da Rocha Pitta, Angela Luzia Branco Pinto Duarte, Maira Galdino da Rocha Pitta
Immune dysregulation is a central process in the pathogenesis of systemic sclerosis (SSc). Cytokines produced by lymphocytes and monocytes are important mediators and induce tissue damage, recruit additional inflammatory cells, and promote extracellular matrix production and fibrosis. In the present research, we aimed to study the associations between levels of cytokines in serum and culture supernatants from peripheral blood mononuclear cells (PBMCs) and clinical manifestations in SSc patients. Serum samples were obtained from 56 SSc patients and 56 unrelated age- and gender-matched healthy individuals...
March 27, 2018: Immunology Letters
https://www.readbyqxmd.com/read/29600197/-herpes-simplex-virus-type-1-infects-enteric-neurons-and-triggers-gut-dysfunction-via-macrophage-recruitment
#9
Paola Brun, Marsela Qesari, Peggy C Marconi, Andromachi Kotsafti, Andrea Porzionato, Veronica Macchi, Reto A Schwendener, Marco Scarpa, Maria C Giron, Giorgio Palù, Arianna Calistri, Ignazio Castagliuolo
Herpes Simplex Virus type 1 (HSV-1), a neurotropic pathogen widespread in human population, infects the enteric nervous system (ENS) in humans and rodents and causes intestinal neuromuscular dysfunction in rats. Although infiltration of inflammatory cells in the myenteric plexus and neurodegeneration of enteric nerves are common features of patients suffering from functional intestinal disorders, the proof of a pathogenic link with HSV-1 is still unsettled mainly because the underlying mechanisms are largely unknown...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29596112/vagal-dysfunction-and-small-intestinal-bacterial-overgrowth-novel-pathways-to-chronic-inflammation-in-hiv
#10
Jessica Robinson-Papp, Alexandra Nmashie-Osei, Elizabeth Pedowitz, Emma K T Benn, Mary C George, Sandeep Sharma, Jacinta Murray, Josef Machac, Sherif Heiba, Saurabh Mehandru, Seunghee Kim-Schulze, Allison Navis, Isabel Elicer, Susan Morgello
OBJECTIVE: Chronic inflammation in HIV-infected individuals drives disease progression and the development of comorbidities, despite viral suppression with combined antiretroviral therapy. Here, we sought evidence that vagal dysfunction, which occurs commonly as part of HIV-associated autonomic neuropathy, could exacerbate inflammation through gastrointestinal dysmotility, small intestinal bacterial overgrowth (SIBO), and alterations in patterns of soluble immune mediators. DESIGN: This is a cross-sectional observational study...
March 28, 2018: AIDS
https://www.readbyqxmd.com/read/29575415/gastrointestinal-dysmotility-a-qualitative-exploration-of-the-journey-from-symptom-onset-to-diagnosis
#11
K Twist, J Ablett, A Wearden, P Paine, D Vasant, S Lal, S Peters
BACKGROUND: Gastrointestinal dysmotility (GID) covers a spectrum of disorders disrupting enteric neuromuscular co-ordination which, when severe, causes intractable gastrointestinal symptoms and malnutrition and is a recognized cause of chronic intestinal failure. To date, no study has provided an in-depth account of the experiences of patients with severe GID and their psychosocial needs. This study aimed to explore patients' experiences from symptom onset and the process of seeking and receiving a diagnosis...
March 25, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29570391/deletion-of-choline-acetyltransferase-in-enteric-neurons-results-in-postnatal-intestinal-dysmotility-and-dysbiosis
#12
Carl D Johnson, Amanda J Barlow-Anacker, Joseph F Pierre, Ketrija Touw, Christopher S Erickson, John B Furness, Miles L Epstein, Ankush Gosain
Acetylcholine (ACh)-synthesizing neurons are major components of the enteric nervous system (ENS). They release ACh and peptidergic neurotransmitters onto enteric neurons and muscle. However, pharmacological interrogation has proven inadequate to demonstrate an essential role for ACh. Our objective was to determine whether elimination of ACh synthesis during embryogenesis alters prenatal viability, intestinal function, the neurotransmitter complement, and the microbiome. Conditional deletion of choline acetyltransferase ( ChAT), the ACh synthetic enzyme, in neural crest-derived neurons ( ChAT-Null) was performed...
March 23, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29565641/role-of-transient-receptor-potential-melastatin-2-in-surgical-inflammation-and-dysmotility-in-a-mouse-model-of-post-operative-ileus
#13
Kenjiro Matsumoto, Hiroki Kawanaka, Masatoshi Hori, Kosuke Kusamori, Daichi Utsumi, Takuya Tsukahara, Kikuko Amagase, Syunji Horie, Akira Yamamoto, Hiroshi Ozaki, Yasuo Mori, Shinichi Kato
In this study, we investigated the role of transient receptor potential melastatin 2 (TRPM2), a nonselective cation channel abundantly expressed in inflammatory cells such as macrophages, in the development of post-operative ileus, a complication of abdominal surgery characterized by gastrointestinal dysmotility. In wild type mice, we found that intestinal manipulation, a maneuver that elicits symptoms typical of post-operative ileus, delays the transit of fluorescein-labeled dextran, promotes the infiltration of CD68+ macrophages, Ly6B...
March 22, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29542847/impaired-motility-in-barrett-s-esophagus-a-study-using-high-resolution-manometry-with-physiologic-challenge
#14
S Sanagapalli, A Emmanuel, R Leong, S Kerr, L Lovat, R Haidry, M Banks, D Graham, A Raeburn, N Zarate-Lopez, R Sweis
BACKGROUND: Esophageal dysmotility may predispose to Barrett's esophagus (BE). We hypothesized that high-resolution manometry (HRM) performed with additional physiologic challenge would better delineate dysmotility in BE. METHODS: Included patients had typical reflux symptoms and underwent endoscopy, HRM with single water swallows and adjunctive testing with solids and rapid drink challenge (RDC) before ambulatory pH-impedance monitoring. BE and endoscopy-negative reflux disease (ENRD) subjects were compared against functional heartburn patient-controls (FHC)...
March 15, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29542845/walker-256-tumor-alters-morphology-of-intestinal-myenteric-plexus-in-rats
#15
P Marega, E A Liberti, J J S Freitas, K S Kietzer
BACKGROUND: Gastrointestinal (GI) dysmotility is common in patients with cancer. There are a few studies about the myenteric plexus in the presence of anatomically remote tumors. METHODS: Forty-eight male Wistar rats were divided into a control (CT) or Walker-256 (TW) group. Tumor cells were subcutaneously injected and saline was injected in the CT group. After 14 days, the small and large intestines were removed for histochemical analysis. The macroscopic morphology of the intestines and the fecal excretion were also observed...
March 15, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29541848/transverse-flap-duodenoplasty-tfd-a-new-technique-in-autologous-bowel-reconstructive-surgery
#16
Daniele Alberti, Laura Righetti, Adrian Bianchi, Gian Luigi de'Angelis, Giovanni Boroni
BACKGROUND: Bowel dilatation is a common adaptive mechanism after intestinal resection. The symptomatic dilated dysmotile duodenum is difficult to manage, since conventional bowel tailoring and lengthening techniques are potentially hazardous because of the anatomy of the duodenal blood supply, the proximity to the pancreas, and the risk of injury to the common bile duct. METHODS: A 2-month-old child with short bowel and a symptomatic massively dilated duodenum was treated with a Transverse Flap Duodenoplasty (TFD)...
March 14, 2018: Pediatric Surgery International
https://www.readbyqxmd.com/read/29520975/enteric-motor-dysfunctions-in-experimental-chronic-pancreatitis-alterations-of-myenteric-neurons-regulating-colonic-motility-in-rats
#17
L Chen, B Yu, D Luo, M Lin
BACKGROUND: The mechanism underlying gastrointestinal (GI) dysmotility associated with chronic pancreatitis (CP) has not been fully elucidated, and enteric nervous system (ENS) has an important regulatory role in gastrointestinal motor function. The aim of this study is to investigate the effect of ENS in the colonic hypomotility induced by trinitrobenzene sulfonic acid (TNBS) infusion which mimics CP. METHODS: Male Sprague-Dawley rats were submitted to CP which was induced by pancreatic infusion of 2% TNBS, or sham group with treatment of equal saline...
March 9, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29493080/intra-operative-high-resolution-mapping-of-slow-wave-propagation-in-the-human-jejunum-feasibility-and-initial-results
#18
T R Angeli, G O'Grady, R Vather, I P Bissett, L K Cheng
BACKGROUND: Bioelectrical slow waves are a coordinating mechanism of small intestine motility, but extracellular human studies have been restricted to a limited number of sparse electrode recordings. High-resolution (HR) mapping has offered substantial insights into spatiotemporal intestinal slow wave dynamics, but has been limited to animal studies to date. This study aimed to translate intra-operative HR mapping to define pacemaking and conduction profiles in the human small intestine...
March 1, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29486765/xiangbin-prescription-for-the-recovery-of-gastrointestinal-function-after-abdominal-surgery-the-xbprs-trial-study-protocol-for-a-randomized-controlled-trial
#19
Huachan Gan, Jinxuan Lin, Zhi Jiang, Qicheng Chen, Lixing Cao, Zhiqiang Chen
BACKGROUND: Most patients who undergo abdominal surgery recover bowel movements within a week; however, some suffer prolonged intestinal paralysis or postoperative ileus (POI) leading to complications, such as infection and intestinal adhesions, which can extend hospitalization and increase readmission rates, and consequently increasing healthcare costs. Chinese medicine is effective for accelerating the recovery of gastrointestinal function after abdominal surgery. Xiangbin prescription (XBP) is the standard prescription for this purpose in our hospital; however, randomized controlled trials of it have not yet been conducted...
February 27, 2018: Trials
https://www.readbyqxmd.com/read/29461261/from-dysmotility-to-virulent-pathogens-implications-of-opioid-use-in-the-icu
#20
Lee-Anne Chapple, Adam Deane
PURPOSE OF REVIEW: Gastrointestinal dysmotility occurs frequently in the critically ill. Although the causes underlying dysmotility are multifactorial, both pain and its treatment with exogenous opioids are likely causative factors. The purpose of this review is to describe the effects of pain and opioids on gastrointestinal motility; outline the rationale for and evidence supporting the administration of opioid antagonists to improve dysmotility; and describe the potential influence opioids drugs have on the intestinal microbiome and infectious complications...
April 2018: Current Opinion in Critical Care
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