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Michael Camilleri

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https://www.readbyqxmd.com/read/29305933/effects-of-weight-loss-medications-on-cardiometabolic-risk-profiles-a-systematic-review-and-network-meta-analysis
#1
Rohan Khera, Ambarish Pandey, Apoorva K Chandar, Mohammad H Murad, Larry J Prokop, Ian J Neeland, Jarett Berry, Michael Camilleri, Siddharth Singh
BACKGROUND & AIMS: We performed a systematic review and network meta-analysis to evaluate the overall and comparative effects of weight-loss medications, approved by the Food and Drug Administration (FDA) for long-term use, on cardiometabolic risk profiles of obese adults. METHODS: We performed a systematic literature review through February 28, 2017 to identify randomized clinical trials of the effects of FDA-approved weight loss medications (orlistat, lorcaserin, naltrexone-bupropion, phentermine-topiramate, and liraglutide), administered to obese adults for 1 year or more, compared with placebo or another active agent...
January 3, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29243034/application-of-pyridostigmine-in-pediatric-gastrointestinal-motility-disorders-a-case-series
#2
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/29239347/chronic-constipation
#3
REVIEW
Michael Camilleri, Alexander C Ford, Gary M Mawe, Phil G Dinning, Satish S Rao, William D Chey, Magnus Simrén, Anthony Lembo, Tonia M Young-Fadok, Lin Chang
Chronic constipation is a prevalent condition that severely impacts the quality of life of those affected. Several types of primary chronic constipation, which show substantial overlap, have been described, including normal-transit constipation, rectal evacuation disorders and slow-transit constipation. Diagnosis of primary chronic constipation involves a multistep process initiated by the exclusion of 'alarm' features (for example, unintentional weight loss or rectal bleeding) that might indicate organic diseases (such as polyps or tumours) and a therapeutic trial with first-line treatments such as dietary changes, lifestyle modifications and over-the-counter laxatives...
December 14, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/29215610/breath-testing-consensus-guidelines-for-sibo-res-ipsa-locquitor
#4
William Paterson, Michael Camilleri, Magnus Simren, Guy Boeckxstaens, Stephen J Vanner
No abstract text is available yet for this article.
December 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/29199141/effects-of-amitriptyline-and-escitalopram-on-sleep-and-mood-in-patients-with-functional-dyspepsia
#5
Linda M Herrick, Michael Camilleri, Cathy D Schleck, Alan R Zinsmeister, Yuri A Saito, Nicholas J Talley
BACKGROUND & AIMS: Tricyclic antidepressants are effective in reducing symptoms of functional dyspepsia (FD). We performed a post hoc analysis of data from a previous randomized clinical trial to determine whether the benefits of an antidepressant on gastrointestinal symptoms in patients with FD were mediated by improving sleep or reducing anxiety. We explored the relationships between psychological measures, quality of sleep, and relief of symptoms. METHODS: We analyzed data from a multicenter, double-blind trial that evaluated the efficacy of antidepressants on symptoms of FD, from October 2006 through October 2012...
December 1, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29189322/ulcerating-tumor-of-the-scalp-challenge
#6
Stanislav N Tolkachjov, Lisa A Drage, Lawrence E Gibson, Michael J Camilleri, David A Wetter
No abstract text is available yet for this article.
December 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29189319/ulcerating-tumor-of-the-scalp-answer
#7
Stanislav N Tolkachjov, Lisa A Drage, Lawrence E Gibson, Michael J Camilleri, David A Wetter
No abstract text is available yet for this article.
December 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29155353/invited-editorial-advantages-and-limitations-of-faers-in-assessing-adverse-event-reporting-for-eluxadoline
#8
EDITORIAL
Victor Chedid, Priya Vijayvargiya, Michael Camilleri
No abstract text is available yet for this article.
November 16, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29102744/modulating-bile-acid-pathways-and-tgr5-receptors-for-treating-liver-and-gi-diseases
#9
REVIEW
Harmeet Malhi, Michael Camilleri
Bile acids are central signals in enterohepatic communication and also integrate microbiota-derived signals into this signaling axis. Discovery of the tissue distribution and signaling pathways activated by the natural receptors for bile acids, farnesoid X receptor and G protein-coupled bile acid receptor 1 (GPBAR1) also known as TGR5, and bile acid transporters has led to the development of therapeutic agents that target these molecules. Obeticholic acid, a selective FXR agonist, and NGM282, a non-mitogenic FGF-19 analog, are two of the agents in this pipeline...
November 2, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29077050/pharmacotherapy-for-irritable-bowel-syndrome
#10
REVIEW
Michael Camilleri, Alexander C Ford
Irritable bowel syndrome (IBS) is a disorder of the brain-gut axis; the pathophysiological mechanisms include altered colonic motility, bile acid metabolism, neurohormonal regulation, immune dysfunction, alterations in the epithelial barrier and secretory properties of the gut. This article reviews the mechanisms, efficacy, and safety of current pharmacotherapy, and medications that are in phase III trials for the treatment of IBS. There remains a significant unmet need for effective treatments-particularly for the pain component of IBS-although the introduction of drugs directed at secretion, motility and a non-absorbable antibiotic provide options for the bowel dysfunction in IBS...
October 27, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29061658/the-gastrointestinal-tract-as-an-integrator-of-mechanical-and-hormonal-response-to-nutrient-ingestion
#11
Adrian Vella, Michael Camilleri
Glucose tolerance after meal ingestion in vivo is the result of multiple processes that occur in parallel. Insulin secretion together with reciprocal inhibition of glucagon secretion contributes to glucose tolerance. However, other factors beyond glucose effectiveness and insulin action require consideration. The absorption of ingested nutrients and their subsequent systemic rate of appearance largely depend on the rate of delivery of nutrients to the proximal small intestine. This is determined by the integrated response of the upper gastrointestinal tract to a meal...
November 2017: Diabetes
https://www.readbyqxmd.com/read/29051033/description-of-analytical-method-and-clinical-utility-of-measuring-serum-7-alpha-hydroxy-4-cholesten-3-one-7ac4-by-mass-spectrometry
#12
Leslie J Donato, Alan Lueke, Stacy M Kenyon, Jeffrey W Meeusen, Michael Camilleri
BACKGROUND: Imbalance of bile acids (BA) homeostasis in the gastrointestinal tract can lead to chronic diarrhea or constipation when BA in the colon are in excess or low, respectively. Since both disturbances of bowel function can result from other etiologies, identifying BA imbalance is important to tailor treatment strategies. Serum concentrations of 7-alpha-hydroxy-4-cholesten-3-one (7aC4), a precursor in bile acid synthesis, reflect BA homeostasis. Here we describe a method to accurately measure serum 7aC4 and evaluate the clinical utility in patients with diarrhea or constipation phenotypes...
October 16, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/29038646/medical-therapies-in-the-pipeline-for-irritable-bowel-syndrome
#13
Michael Camilleri
No abstract text is available yet for this article.
September 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28958851/effects-of-liraglutide-on-weight-satiation-and-gastric-functions-in-obesity-a-randomised-placebo-controlled-pilot-trial
#14
Houssam Halawi, Disha Khemani, Deborah Eckert, Jessica O'Neill, Hoda Kadouh, Karen Grothe, Matthew M Clark, Duane D Burton, Adrian Vella, Andres Acosta, Alan R Zinsmeister, Michael Camilleri
BACKGROUND: Liraglutide, a long-acting GLP-1 receptor agonist, is approved for treatment of obesity; however, the mechanisms of action of liraglutide are incompletely understood. We compared effects of liraglutide versus placebo on gastric motor functions, satiation, satiety, and weight in obese individuals over 16 weeks. METHODS: We did a randomised, double-blind, placebo-controlled pilot trial at a single centre (Mayo Clinic, Rochester, MN, USA). Participants were randomly allocated (1:1) by a computer generated randomisation schedule with no stratification to receive subcutaneous liraglutide (3·0 mg) or placebo, with standardised nutritional and behavioural counselling...
September 25, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28936110/a-working-paradigm-for-the-treatment-of-obesity-in-gastrointestinal-practice
#15
Andres Acosta, Michael Camilleri
Obesity is a chronic, relapsing, multi-factorial disease characterized by abnormal or excessive adipose tissue accumulation that may impair health and increase disease risks. Despite the ever-increasing prevalence and economic and societal burden, the current approaches to treat obesity are not standardized or generally effective. In this manuscript, we describe a current working paradigm developed by a consensus approach for the multidisciplinary treatment of obesity in the GI practice. Obesity should be managed as a continuum of care focusing on weight loss, weight loss maintenance and prevention of weight regain...
January 2017: Techniques in Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28911951/anniversary-tribute-from-the-editors-of-clinical-gastroenterology-and-hepatology
#16
Michael Camilleri, C Mel Wilcox, Hashem B El-Serag, Fasiha Kanwal
No abstract text is available yet for this article.
September 12, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28899672/large-meckel-s-diverticulum-and-dilated-adjacent-small-intestine-presenting-with-intestinal-obstruction
#17
Kathleen van Malderen, Michael Camilleri
No abstract text is available yet for this article.
September 9, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28895582/gastric-motor-dysfunction-in-patients-with-functional-gastroduodenal-symptoms
#18
Seon-Young Park, Andrés Acosta, Michael Camilleri, Duane Burton, W Scott Harmsen, Jean Fox, Lawrence A Szarka
OBJECTIVES: The pathophysiology of dyspeptic symptoms is complex. The aim of this study was to evaluate the association of gastric emptying (GE), gastric accommodation (GA), and respiratory sinus arrhythmia (RSA, to assess vagal dysfunction) in a large cohort with functional gastroduodenal symptoms. METHODS: We reviewed demographic, clinical features, and results of gastric motor and vagal function studies of 1,287 patients (74.0% females, mean age 43.1±15.4 years) who had undergone both single photon emission computed tomography GA and scintigraphic GE...
November 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28814481/plausibility-criteria-for-putative-pathophysiological-mechanisms-in-functional-gastrointestinal-disorders-a-consensus-of-experts
#19
Jan Tack, Maura Corsetti, Michael Camilleri, Eamonn Mm Quigley, Magnus Simren, Hidekazu Suzuki, Nicholas J Talley, Hans Tornblom, Lukas Van Oudenhove
BACKGROUND AND AIMS: The functional gastrointestinal disorders (FGIDs) are extremely common conditions associated with a considerable personal, social and health economic burden. Managing FGIDs in clinical practice is challenging because of the uncertainty of symptom-based diagnosis, the high frequency of overlap between these conditions and the limited efficacy of available therapies. It has often been argued that successful drug development and management of FGIDs requires knowledge of the underlying pathophysiology...
August 16, 2017: Gut
https://www.readbyqxmd.com/read/28814387/effects-of-nk1-receptors-on-gastric-motor-functions-and-satiation-in-healthy-humans-results-from-a-controlled-trial-with-the-nk1-antagonist-aprepitant
#20
Deepti Jacob, Irene A Busciglio, Duane D Burton, Houssam Halawi, Ibironke Oduyebo, Deborah Rhoten, Michael Ryks, W Scott Harmsen, Michael Camilleri
Aprepitant, an NK1 receptor antagonist, is approved for the treatment of chemotherapy-induced or postoperative emesis by blocking NK1 receptors in the brain stem vomiting center. Effects of NK1 receptors on gastric functions and postprandial symptoms in humans are unclear; a single, crossover study did not show a significant effect of aprepitant on gastrointestinal transit. Our aim was to compare, in a randomized, double-blind, placebo-controlled, parallel-group study (12 healthy volunteers per group), effects of aprepitant vs...
August 16, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
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