keyword
MENU ▼
Read by QxMD icon Read
search

Jan Tack

keyword
https://www.readbyqxmd.com/read/29761870/intestinal-disposition-of-quercetin-and-its-phase-ii-metabolites-after-oral-administration-in-healthy-volunteers
#1
Clément Chalet, Jari Rubbens, Jan Tack, Guus S Duchateau, Patrick Augustijns
OBJECTIVES: Quercetin is one of the main dietary flavonoids and undergoes a substantial intestinal phase-II metabolism. Quercetin conjugates have been detected in plasma and in urine, but their presence in the small intestine has not been assessed. This study aimed to investigate the intestinal metabolism and metabolite excretion of quercetin by the human small intestinal wall after oral dosing. METHODS: Six healthy volunteers were given a capsule of 500 mg of quercetin with 240 ml of water...
May 15, 2018: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29748564/screening-for-dysplasia-with-lugol-chromoendoscopy-in-longstanding-idiopathic-achalasia
#2
Fraukje A Ponds, An Moonen, André J P M Smout, Wout O A Rohof, Jan Tack, Stijn van Gool, Raf Bisschops, Albert J Bredenoord, Guy E Boeckxstaens
BACKGROUND: Achalasia patients with longstanding disease are considered to be at risk for developing esophageal cancer. Endoscopic screening is not standardized and detection of dysplastic lesions is difficult, for which Lugol chromoendoscopy could be helpful. Aim was to evaluate the efficacy of screening for esophageal dysplasia and carcinoma in patients with longstanding achalasia using Lugol chromoendoscopy. METHODS: In this cohort study achalasia patients underwent three-annual screening by Lugol chromoendoscopy between January 2000 and March 2016...
May 11, 2018: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/29722834/effects-of-caloric-and-noncaloric-sweeteners-on-antroduodenal-motility-gastrointestinal-hormone-secretion-and-appetite-related-sensations-in-healthy-subjects
#3
Anne Christin Meyer-Gerspach, Jessica R Biesiekierski, Eveline Deloose, Egbert Clevers, Alessandra Rotondo, Jens F Rehfeld, Inge Depoortere, Lukas Van Oudenhove, Jan Tack
Background: Activation of gastrointestinal (GI) sweet taste receptors by caloric sweeteners triggers secretion of anorexigenic and inhibition of orexigenic GI hormones to regulate food intake. The effect of noncaloric sweeteners on these mechanisms is controversial. We have recently shown that motilin-induced gastric phase III contractions signal hunger feelings, thereby identifying GI motility, and its regulatory hormone motilin, as novel players in food intake regulation. Objective: The objective of the present study was to determine the effect of caloric and noncaloric sweeteners on GI motility, GI hormone secretion, and hunger in humans...
May 1, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29702295/functional-dyspepsia-and-severity-of-psychologic-symptoms-associate-with-postprandial-symptoms-in-patients-with-irritable-bowel-syndrome
#4
Daniel Pohl, Lukas Van Oudenhove, Hans Törnblom, Boris Le Nevé, Jan Tack, Magnus Simrén
BACKGROUND & AIMS: Patients with irritable bowel syndrome (IBS) have an increased response of postprandial symptoms to a combined lactulose nutrient challenge test, compared with healthy volunteers. We investigated the associations among co-morbid functional dyspepsia (FD), severity of psychologic symptoms, and breath test results in response to this test. METHODS: We performed a prospective study of 205 patients with IBS (Rome III criteria), 94 of whom also had FD (IBS-FD), and 83 healthy volunteers in Sweden from 2008 through 2015...
April 24, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29622808/expert-consensus-document-advances-in-the-diagnosis-and-classification-of-gastric-and-intestinal-motility-disorders
#5
REVIEW
Jutta Keller, Gabrio Bassotti, John Clarke, Phil Dinning, Mark Fox, Madhusudan Grover, Per M Hellström, Meiyun Ke, Peter Layer, Carolina Malagelada, Henry P Parkman, S Mark Scott, Jan Tack, Magnus Simren, Hans Törnblom, Michael Camilleri
Disturbances of gastric, intestinal and colonic motor and sensory functions affect a large proportion of the population worldwide, impair quality of life and cause considerable health-care costs. Assessment of gastrointestinal motility in these patients can serve to establish diagnosis and to guide therapy. Major advances in diagnostic techniques during the past 5-10 years have led to this update about indications for and selection and performance of currently available tests. As symptoms have poor concordance with gastrointestinal motor dysfunction, clinical motility testing is indicated in patients in whom there is no evidence of causative mucosal or structural diseases such as inflammatory or malignant disease...
April 6, 2018: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29607741/intragastric-quinine-administration-decreases-hedonic-eating-in-healthy-women-through-peptide-mediated-gut-brain-signaling-mechanisms
#6
Julie Iven, Jessica R Biesiekierski, Dongxing Zhao, Eveline Deloose, Owen G O'Daly, Inge Depoortere, Jan Tack, Lukas Van Oudenhove
OBJECTIVES: Intragastric bitter tastants may decrease appetite and food intake. We aimed to investigate the gut-brain signaling and brain mechanisms underlying these effects. METHODS: Brain responses to intragastric quinine-hydrochloride (QHCl, 10 µmol/kg) or placebo infusion were recorded using functional magnetic resonance imaging in 15 healthy women. Appetite-related sensations, plasma levels of gastrointestinal hormones and hedonic food intake (ad libitum drink test) were assessed...
April 2, 2018: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29599471/activation-of-eosinophils-and-mast-cells-in-functional-dyspepsia-an-ultrastructural-evaluation
#7
Hanne Vanheel, Maria Vicario, Werend Boesmans, Tim Vanuytsel, Eloisa Salvo-Romero, Jan Tack, Ricard Farré
We recently identified mucosal mast cell and eosinophil hyperplasia in association with a duodenal impaired barrier function in functional dyspepsia (FD). We aimed to further describe the implication of these immune cells by assessing their activation state at the ultrastructural level and by evaluating the association between impaired epithelial integrity and immune activation. Duodenal biopsies were obtained from 24 FD patients and 37 healthy controls. The ultrastructure of mast cells and eosinophils was analyzed by transmission electron microscopy...
March 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29511560/relationships-between-psychological-state-abuse-somatization-and-visceral-pain-sensitivity-in-irritable-bowel-syndrome
#8
Cecilia Grinsvall, Hans Törnblom, Jan Tack, Lukas Van Oudenhove, Magnus Simrén
Background and objective: Psychological states may interfere with visceral sensitivity. Here we investigate associations between psychosocial factors and visceral sensitivity in irritable bowel syndrome (IBS). Methods: Two IBS patient cohorts (Cohort 1: n  = 231, Rome II; Cohort 2: n  = 141, Rome III) underwent rectal barostat testing, and completed questionnaires for anxiety, depression, somatization, and abuse. The associations between questionnaire measures and visceral sensitivity parameters were analyzed in three-step general linear models (step1: demographic and abuse variables; step 2: anxiety and depression; step 3: somatization)...
March 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29510215/factor-analysis-defines-distinct-upper-and-lower-gastrointestinal-symptom-groups-compatible-with-rome-iv-criteria-in-a-population-based-study
#9
Egbert Clevers, William E Whitehead, Olafur S Palsson, Ami D Sperber, Hans Törnblom, Lukas Van Oudenhove, Jan Tack, Magnus Simrén
BACKGROUND & AIMS: The Rome IV criteria define functional gastrointestinal (GI) disorders by specific combinations of symptoms. It is possible to empirically evaluate these symptom combinations by factor analysis (a statistical procedure that groups variables that correlate). However, this analysis has not been performed for the Rome IV criteria, and factor analyses based on the previous versions of the Rome criteria did not use population-based data. We therefore investigated symptom grouping by the Rome IV questionnaire using factor analysis of a population-based sample...
March 3, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29510214/development-of-irritable-bowel-syndrome-features-over-a-5-year-period
#10
Egbert Clevers, Jan Tack, Hans Törnblom, Gisela Ringström, Koen Luyckx, Magnus Simrén, Lukas Van Oudenhove
BACKGROUND & AIMS: There are few data from longitudinal studies of the gastrointestinal and psychologic features of irritable bowel syndrome (IBS). We studied within-person correlations among features of IBS, along with progression of gastrointestinal (GI) symptoms and quality of life, and factors associated with changes over time. METHODS: We performed a longitudinal study of 276 patients with IBS in Sweden (70% female; ages, 19-76 years) who completed questionnaires, each year for 5 years, about their GI symptom severity, quality of life, GI-specific anxiety, general anxiety, depression, and coping resources...
March 3, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29482593/spatial-and-temporal-variation-in-the-abundance-of-culicoides-biting-midges-diptera-ceratopogonidae-in-nine-european-countries
#11
Ana Carolina Cuéllar, Lene Jung Kjær, Carsten Kirkeby, Henrik Skovgard, Søren Achim Nielsen, Anders Stockmarr, Gunnar Andersson, Anders Lindstrom, Jan Chirico, Renke Lühken, Sonja Steinke, Ellen Kiel, Jörn Gethmann, Franz J Conraths, Magdalena Larska, Inger Hamnes, Ståle Sviland, Petter Hopp, Katharina Brugger, Franz Rubel, Thomas Balenghien, Claire Garros, Ignace Rakotoarivony, Xavier Allène, Jonathan Lhoir, David Chavernac, Jean-Claude Delécolle, Bruno Mathieu, Delphine Delécolle, Marie-Laure Setier-Rio, Roger Venail, Bethsabée Scheid, Miguel Ángel Miranda Chueca, Carlos Barceló, Javier Lucientes, Rosa Estrada, Alexander Mathis, Wesley Tack, Rene Bødker
BACKGROUND: Biting midges of the genus Culicoides (Diptera: Ceratopogonidae) are vectors of bluetongue virus (BTV), African horse sickness virus and Schmallenberg virus (SBV). Outbreaks of both BTV and SBV have affected large parts of Europe. The spread of these diseases depends largely on vector distribution and abundance. The aim of this analysis was to identify and quantify major spatial patterns and temporal trends in the distribution and seasonal variation of observed Culicoides abundance in nine countries in Europe...
February 27, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29475094/effects-of-levetiracetam-and-sulthiame-on-eeg-in-benign-epilepsy-with-centrotemporal-spikes-a-randomized-controlled-trial
#12
Moritz Tacke, Ingo Borggraefe, Lucia Gerstl, Florian Heinen, Katharina Vill, Michaela Bonfert, Thomas Bast, Bernd Axel Neubauer, Friedrich Baumeister, Martina Baethmann, Karl Bentele, Christian Blank, Harald M Blank, Harald Bode, Friedrich Bosch, Ulrich Brandl, Knut Brockmann, Peter Dahlem, Jan-Peter Ernst, Evemarie Feldmann, Andreas Fiedler, Michael Gerigk, Soeren Heß, Christiane Hikel, Hans-Georg Hoffmann, Matthias Kieslich, Joerg Klepper, Gerhard Kluger, Hartmut Koch, Walter Koch, Rudolf Korinthenberg, Ilona Krois, Hermann Kühne, Gerhard Kurlemann, Michaela Mandl, Ulrike Mause, Peter Navratil, Joachim Opp, Johann Penzien, Viola Prietsch, Axel Quattländer, Dietz Rating, Ulrike Schara, Mohammed G Shamdeen, Andreas Sprinz, Hildegard Wendker-Magrabi, Ulrich Stephani, Hiltrud Muhle, Hans-Michael Straßburg, Bärbel Töpke, Regina Trollmann, Elisabeth Tuschen-Hofstätter, Stephan Waltz, Gabriele Weber, Frank U Wien, Markus Wolff, Tilman Polster, Hedwig Freitag, Ötzcam Sönmez, Klaus Reinhardt, Marion Traus, Zeecam Hoovey
PURPOSE: BECTS (benign childhood epilepsy with centrotemporal spikes) is associated with characteristic EEG findings. This study examines the influence of anti-convulsive treatment on the EEG. METHODS: In a randomized controlled trial including 43 children with BECTS, EEGs were performed prior to treatment with either Sulthiame or Levetiracetam as well as three times under treatment. Using the spike-wave-index, the degree of EEG pathology was quantified. The EEG before and after initiation of treatment was analyzed...
March 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29437910/modern-diagnosis-of-gerd-the-lyon-consensus
#13
REVIEW
C Prakash Gyawali, Peter J Kahrilas, Edoardo Savarino, Frank Zerbib, Francois Mion, André J P M Smout, Michael Vaezi, Daniel Sifrim, Mark R Fox, Marcelo F Vela, Radu Tutuian, Jan Tack, Albert J Bredenoord, John Pandolfino, Sabine Roman
Clinical history, questionnaire data and response to antisecretory therapy are insufficient to make a conclusive diagnosis of GERD in isolation, but are of value in determining need for further investigation. Conclusive evidence for reflux on oesophageal testing include advanced grade erosive oesophagitis (LA grades C and D), long-segment Barrett's mucosa or peptic strictures on endoscopy or distal oesophageal acid exposure time (AET) >6% on ambulatory pH or pH-impedance monitoring. A normal endoscopy does not exclude GERD, but provides supportive evidence refuting GERD in conjunction with distal AET <4% and <40 reflux episodes on pH-impedance monitoring off proton pump inhibitors...
February 3, 2018: Gut
https://www.readbyqxmd.com/read/29379095/the-motilin-agonist-erythromycin-increases-hunger-by-modulating-homeostatic-and-hedonic-brain-circuits-in-healthy-women-a-randomized-placebo-controlled-study
#14
Dongxing Zhao, Anne Christin Meyer-Gerspach, Eveline Deloose, Julie Iven, Nathalie Weltens, Inge Depoortere, Owen O'daly, Jan Tack, Lukas Van Oudenhove
The motilin agonist, erythromycin, induces gastric phase III of the migrating motor complex, which in turn generates hunger peaks. To identify the brain mechanisms underlying these orexigenic effects, 14 healthy women participated in a randomized, placebo-controlled crossover study. Functional magnetic resonance brain images were acquired for 50 minutes interprandially. Intravenous infusion of erythromycin (40 mg) or saline started 10 minutes after the start of scanning. Blood samples (for glucose and hormone levels) and hunger ratings were collected at fixed timepoints...
January 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29274869/neuromodulators-for-functional-gastrointestinal-disorders-disorders-of-gut-brain-interaction-a-rome-foundation-working-team-report
#15
REVIEW
Douglas A Drossman, Jan Tack, Alexander C Ford, Eva Szigethy, Hans Törnblom, Lukas Van Oudenhove
BACKGROUND & AIMS: Central neuromodulators (antidepressants, antipsychotics, and other central nervous system-targeted medications) are increasingly used for treatment of functional gastrointestinal disorders (FGIDs), now recognized as disorders of gut-brain interaction. However, the available evidence and guidance for the use of central neuromodulators in these conditions is scanty and incomplete. In this Rome Foundation Working Team report, a multidisciplinary team summarized available research evidence and clinical experience to provide guidance and treatment recommendations...
March 2018: Gastroenterology
https://www.readbyqxmd.com/read/29206813/a-randomized-double-blind-placebo-controlled-cross-over-study-using-baclofen-in-the-treatment-of-rumination-syndrome
#16
Ans Pauwels, Charlotte Broers, Brecht Van Houtte, Nathalie Rommel, Tim Vanuytsel, Jan Tack
OBJECTIVES: Both rumination syndrome and supra-gastric belching (SGB) have limited treatment options. We demonstrated (open-label) that baclofen reduces pressure flow events in these patients. We aimed to study the effect of baclofen in a placebo-controlled, double-blind, cross-over study in patients with clinically suspected rumination and/or SGB. METHODS: Twenty tertiary-care patients (mean age 42 years (range 18-61), 13f) with clinically suspected rumination and/or SGB were randomized to receive baclofen (10 mg, t...
January 2018: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/29180833/growth-differentiation-factor-15-is-a-predictor-of-mortality-in-critically-ill-patients-with-sepsis
#17
Lukas Buendgens, Eray Yagmur, Jan Bruensing, Ulf Herbers, Christer Baeck, Christian Trautwein, Alexander Koch, Frank Tacke
Growth differentiation factor-15 (GDF-15) is a member of the transforming growth factor- β superfamily related to inflammation and macrophage activation. Serum concentrations of GDF-15 can predict poor survival in chronic diseases, but its role in sepsis is obscure. Therefore, we investigated GDF-15 as a prognostic biomarker in critically ill patients. We measured GDF-15 levels in 219 critically ill patients (146 with sepsis, 73 without sepsis) upon admission to the intensive care unit (ICU), in comparison to 66 healthy controls...
2017: Disease Markers
https://www.readbyqxmd.com/read/29172123/existing-and-emerging-therapies-for-managing-constipation-and-diarrhea
#18
REVIEW
Adil E Bharucha, Mira M Wouters, Jan Tack
Functional bowel disorders (i.e., constipation and diarrhea) are characterized by abdominal pain, bloating, distention, and/or bowel habit abnormalities in the absence of obvious anatomic or physiologic abnormalities on routine diagnostic tests. These symptoms are attributable to gastrointestinal sensorimotor dysfunctions resulting from peripheral and/or central mechanisms. Available drugs target the underlying bowel disturbance (i.e., constipation, diarrhea, or both), supplemented when necessary by management of pain...
December 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29099093/functional-dyspepsia
#19
REVIEW
Paul Enck, Fernando Azpiroz, Guy Boeckxstaens, Sigrid Elsenbruch, Christine Feinle-Bisset, Gerald Holtmann, Jeffrey M Lackner, Jukka Ronkainen, Michael Schemann, Andreas Stengel, Jan Tack, Stephan Zipfel, Nicholas J Talley
Functional dyspepsia is one of the most prevalent functional gastrointestinal disorders. Functional dyspepsia comprises three subtypes with presumed different pathophysiology and aetiology: postprandial distress syndrome (PDS), epigastric pain syndrome (EPS) and a subtype with overlapping PDS and EPS features. Functional dyspepsia symptoms can be caused by disturbed gastric motility (for example, inadequate fundic accommodation or delayed gastric emptying), gastric sensation (for example, sensations associated with hypersensitivity to gas and bloating) or gastric and duodenal inflammation...
November 3, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/29037470/pathophysiology-of-gastroesophageal-reflux-disease
#20
REVIEW
Jan Tack, John E Pandolfino
The pathogenesis of gastroesophageal reflux disease (GERD) is complex and involves changes in reflux exposure, epithelial resistance, and visceral sensitivity. The gastric refluxate is a noxious material that injures the esophagus and elicits symptoms. Esophageal exposure to gastric refluxate is the primary determinant of disease severity. This exposure arises via compromise of the anti-reflux barrier and reduced ability of the esophagus to clear and buffer the refluxate, leading to reflux disease. However, complications and symptoms also occur in the context of normal reflux burden, when there is either poor epithelial resistance or increased visceral sensitivity...
January 2018: Gastroenterology
keyword
keyword
111042
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"