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Gastric emptying

H P Parkman, E K Hallinan, W L Hasler, G Farrugia, K L Koch, L Nguyen, W J Snape, T L Abell, R W McCallum, I Sarosiek, P J Pasricha, J Clarke, L Miriel, J Tonascia, F Hamilton
BACKGROUND: Early satiety (ES) and postprandial fullness (PPF) are often present in gastroparesis, but the importance of these symptoms in gastroparesis has not been well-described. The aims were: (i) Characterize ES and PPF in patients with gastroparesis. (ii) Assess relationships of ES and PPF with etiology of gastroparesis, quality of life, body weight, gastric emptying, and water load testing. METHODS: Gastroparetic patients filled out questionnaires assessing symptoms (PAGI-SYM) and quality of life (PAGI-QOL, SF-36v2)...
October 25, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
S T Eisenman, S J Gibbons, P-J Verhulst, G Cipriani, D Saur, G Farrugia
BACKGROUND: Delayed gastric emptying in diabetic mice and humans is associated with changes in macrophage phenotype and loss of interstitial cells of Cajal (ICC) in the gastric muscle layers. In diabetic mice, classically activated M1 macrophages are associated with delayed gastric emptying, whereas alternatively activated M2 macrophages are associated with normal gastric emptying. This study aimed to determine if secreted factors from M1 macrophages could injure mouse ICC in primary culture...
October 25, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
Christopher J Berg, Jonathan D Kaunitz
The ability of humans to sense chemical signals in ingested substances is implicit in the ability to detect the five basic tastes; sweet, sour, bitter, salty, and umami. Of these, sweet, bitter, and umami tastes are detected by lingual G-protein-coupled receptors (GPCRs). Recently, these receptors were also localized to the gut mucosa. In this review, we will emphasize recent advances in the understanding of the mechanisms and consequences of foregut luminal chemosensing, with special emphasis on cell surface GPCRs such as the sweet and proteinaceous taste receptors (TASRs), short- and long-chain fatty acid (FA) receptors, and bile acid receptors...
2016: F1000Research
Allison C Sylvetsky, Rebecca J Brown, Jenny E Blau, Mary Walter, Kristina I Rother
BACKGROUND: Non-nutritive sweeteners (NNS), especially in form of diet soda, have been linked to metabolic derangements (e.g. obesity and diabetes) in epidemiologic studies. We aimed to test acute metabolic effects of NNS in isolation (water or seltzer) and in diet sodas. METHODS: We conducted a four-period, cross-over study at the National Institutes of Health Clinical Center (Bethesda, Maryland). Thirty healthy adults consumed 355 mL water with 0 mg, 68 mg, 170 mg, and 250 mg sucralose, and 31 individuals consumed 355 mL caffeine-free Diet Rite Cola™, Diet Mountain Dew™ (18 mg sucralose, 18 mg acesulfame-potassium, 57 mg aspartame), and seltzer water with NNS (68 mg sucralose and 41 mg acesulfame-potassium, equivalent to Diet Rite Cola™) in randomized order, prior to oral glucose tolerance tests...
2016: Nutrition & Metabolism
Eva-Lena Stenblom, Björn Weström, Caroline Linninge, Peter Bonn, Mary Farrell, Jens F Rehfeld, Caroline Montelius
Green-plant thylakoids increase satiety by affecting appetite hormones such as ghrelin, cholecystokinin (CCK) and glucagon-like peptide-1 (GLP-1). The objective of this study was to investigate if thylakoids also affect gastrointestinal (GI) passage and microbial composition. To analyse the effects on GI passage, 16 rats were gavage-fed a control or thylakoid-supplemented high-fat diet (HFD) 30 min before receiving Evans blue. Another 16 rats were fed a control HFD or thylakoid HFD for two weeks prior to the intragastric challenge with Evans blue...
2016: Nutrition & Metabolism
Markolf Hanefeld, Denis Raccah, Louis Monnier
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease associated with hyperglycemia, which can lead to serious vascular complications. Current treatment guidelines place particular emphasis on personalization of therapy. Within this guidance, the use of various second-line therapies, including glucagon-like peptide-1 receptor agonists (GLP-1 RAs), is recommended under certain circumstances. Areas covered: Factors influencing glucose homeostasis, including gastric emptying and the associated cardiovascular (CV) risk when homeostasis is not maintained, are reviewed...
October 25, 2016: Expert Opinion on Drug Metabolism & Toxicology
Yusuke Tanaka, Ayaka Kawakami, Ami Nanimatsu, Misaki Horio, Jumpei Matsuoka, Takami Wada, Satoshi Kasaoka, Hiroshi Yoshikawa
The aim of this study is to evaluate how supersaturation, precipitation, and re-dissolution processes influence the intestinal absorption of cinnarizine (CNZ), a lipophilic weak base, by monitoring its plasma and luminal concentration-time profile, after oral administration as a HCl solution containing fluorescein isothiocyanate dextran (FD-4), a non-absorbable marker. In the in vitro pH shift experiment, the supersaturation stability was significantly lower when the higher-concentration solution of CNZ (pH1...
October 20, 2016: European Journal of Pharmaceutical Sciences
Rauf Shahbazov, Gumpei Yoshimatsu, Waqas Z Haque, Omar S Khan, Giovanna Saracino, Michael C Lawrence, Peter T Kim, Nicholas Onaca, Bashoo Naziruddin, Marlon F Levy
BACKGROUND: The impact of pylorus preserving procedures (PP) on total pancreatectomy with islet autotransplantation (TPIAT) has not been examined. This study aimed to investigate the clinical impact of the PP on TPIAT. METHODS: The Baylor Simmons Transplant Institute database was queried to identify seventy-three patients who underwent TPIAT from 2006 to 2014. All patients were investigated in postoperative complications, long-term nutritional status, and graft function...
October 8, 2016: American Journal of Surgery
Chun Yeh, Ching-Heng Ting, Ming-Luen Doong, Chin-Wen Chi, Shou-Dong Lee, Chih-Yen Chen
PURPOSE: Urocortin 3 is a key neuromodulator in the regulation of stress, anxiety, food intake, gut motility, and energy homeostasis, while ghrelin elicits feeding behavior and enhances gastric emptying, adiposity, and positive energy balance. However, the interplays between urocortin 3 and ghrelin on food intake and gastric emptying remain uninvestigated. METHODS: We examined the differential effects of central O-n-octanoylated ghrelin, des-Gln(14)-ghrelin, and urocortin 3 on food intake, as well as on charcoal nonnutrient semiliquid gastric emptying in conscious rats that were chronically implanted with intracerebroventricular (ICV) catheters...
2016: Drug Design, Development and Therapy
A P van Beek, M Emous, M Laville, J Tack
BACKGROUND: Dumping syndrome, a common complication of esophageal, gastric or bariatric surgery, includes early and late dumping symptoms. Early dumping occurs within 1 h after eating, when rapid emptying of food into the small intestine triggers rapid fluid shifts into the intestinal lumen and release of gastrointestinal hormones, resulting in gastrointestinal and vasomotor symptoms. Late dumping occurs 1-3 h after carbohydrate ingestion, caused by an incretin-driven hyperinsulinemic response resulting in hypoglycemia...
October 17, 2016: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
Tara A Altepeter, Stephen Shaffer
OBJECTIVES: To quantify the diagnostic yield of upper endoscopy in children with gastroparesis and to develop a clinical model for gastroparesis using common symptoms and screening blood tests. METHODS: We retrospectively reviewed charts of 196 patients aged 4-18yrs evaluated for gastroparesis between 2009 and 2013. All patients completed a standard solid-phase gastric emptying scan and upper endoscopy within a 12-month period. We analyzed gross and histologic endoscopy findings...
October 12, 2016: Journal of Pediatric Gastroenterology and Nutrition
Christian M Lo Cascio, Oliver Goetze, Tsogyal D Latshang, Sena Bluemel, Thomas Frauenfelder, Konrad E Bloch
BACKGROUND: In adult patients with Duchenne muscular dystrophy (DMD) life-threatening constipation has been reported. Since gastrointestinal function in DMD has not been rigorously studied we investigated objective and subjective manifestations of gastrointestinal disturbances in DMD patients. METHODS: In 33 patients with DMD, age 12-41 years, eating behavior and gastrointestinal symptoms were evaluated by questionnaires. Gastric emptying half time (T1/2) and oro-cecal transit time (OCTT) were evaluated by analyzing 13CO2 exhalation curves after ingestion of 13C labeled test meals...
2016: PloS One
Tongzhi Wu, Christopher K Rayner, Michael Horowitz
The GI tract is central to the regulation of postprandial glycemia, with the rate of gastric emptying and the secretion of the incretin hormones, glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1, being key determinants. Gastric emptying exhibits a large interindividual variation; the latter not only accounts for differences in postprandial glycemia but also determines postprandial incretin profiles. Accordingly, the rate of gastric emptying may affect the glucose-lowering efficacy of dipeptidyl peptidase-4 inhibitors...
October 13, 2016: Biomarkers in Medicine
Omar J Shah, Sadaf A Bangri, Manmohan Singh, Reyaz A Lattoo, Mohammad Y Bhat, Feroze A Khan
BACKGROUND: Fast track strategy in the management of patients undergoing intra-abdominal surgery of various types has emerged as a landmark approach to reduce surgical stress and accelerate recovery. This study was to evaluate the effect of fast track strategy on patients subjected to pancreaticoduodenectomy (PD) from an individual unit during transit from low to a high volume center. METHODS: A total of 142 PD patients who had been subjected to fast track strategy between June 2008 and September 2012 were compared with 46 patients who had received conventional surgery between January 2006 and May 2008...
October 2016: Hepatobiliary & Pancreatic Diseases International: HBPD INT
Stephen Flach, Marie Croft, Jie Ding, Ron Budhram, Todd Pankratz, Mike Pennick, Graeme Scarfe, Steven Troy, Jay Getsy
PURPOSE: Gastroesophageal reflux disease involves the reflux of gastric and/or duodenal content into the esophagus. Prokinetic therapies, such as the selective 5-hydroxytryptamine receptor 4 agonist revexepride, may aid gastric emptying. This Phase I study evaluated the pharmacokinetics and excretion pathways of [(14)C]revexepride in healthy individuals using a microtracer approach with accelerator mass spectrometry. PARTICIPANTS AND METHODS: Six healthy men received a single oral dose of 2 mg [(14)C]revexepride containing ~200 nCi of radioactivity; blood, urine, and fecal samples were collected over a 10-day period...
2016: Drug Design, Development and Therapy
William L Hasler
Chronic unexplained nausea and vomiting (CUNV) refers to a symptom complex defined by nausea and/or vomiting with normal diagnostic testing, including anatomic assessments (including upper endoscopy) and measures of upper gut function (e.g., gastric emptying testing). Nausea and vomiting in this condition are postulated to result from aberrant peripheral or central neurohumoral activity. A substantial subset of patients satisfies this diagnosis as more than half of individuals referred for scintigraphic testing exhibit normal gastric emptying rates...
October 10, 2016: Current Treatment Options in Gastroenterology
Shinsuke Nakayama, Hidemi Teramoto
 The umami taste amino acid, glutamate acts as a signaling molecule in multiple cellular systems in the body, including the brain and gastrointestinal tract. Therefore, glutamate may affect appetite by modulating gastrointestinal motility as well as through taste perception. In this study, we examined the effect of glutamate on gastric emptying and duodenal motility, by using rapid magnetic resonance imaging (MRI). Ten healthy male volunteers participated in the measurements. Abdominal coronal MR images were successively acquired after ingestion of a liquid meal with and without monosodium L-glutamate (MSG)...
2016: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
Juntaro Matsuzaki, Hidekazu Suzuki, Tatsuhiro Masaoka, Kentaro Tanaka, Hideki Mori, Takanori Kanai
Functional gastrointestinal disorders (FGIDs), including functional dyspepsia (FD), are common chronic disorders even in the younger population. Physical activity is advocated for patients with FGIDs, although the evidence is insufficient. We investigated the association between the intensity of regular exercise and gastric emptying to determine the effect of physical activity on dyspeptic symptoms. Thirty healthy individuals were selected and divided into three groups (low, moderate, and high) using the index of total exercise intensity in a week...
September 2016: Journal of Clinical Biochemistry and Nutrition
Ulrich Rohde, Cecilie A Federspiel, Peter Vilmann, Ebbe Langholz, Steffen U Friis, Martin Krakauer, Jens F Rehfeld, Jens J Holst, Tina Vilsbøll, Filip K Knop
AIMS: The duodenal-jejunal bypass sleeve ((DJBS) or EndoBarrier Gastrointestinal Liner) induces weight loss in obese subjects and may improve glucose homeostasis in patients with type 2 diabetes (T2D). To explore the underlying mechanisms, we evaluated postprandial physiology including glucose metabolism, gut hormone secretion, gallbladder emptying, appetite and food intake in patients undergoing DJBS treatment. MATERIAL AND METHODS: Ten normal glucose tolerant (NGT) obese subjects and nine age, body weight and body mass index-matched metformin-treated T2D patients underwent a liquid mixed meal test and a subsequent ad libitum meal test before implantation with DJBS and one (1w) and 26 weeks (26w) after implantation...
October 3, 2016: Diabetes, Obesity & Metabolism
Federico Sista, Valentina Abruzzese, Marco Clementi, Sergio Carandina, Manuela Cecilia, Gianfranco Amicucci
BACKGROUND: Rapid gastric emptying has been proposed to justify the increase in glucagon-like polypeptide-1 (GLP-1) after laparoscopic sleeve gastrectomy (LSG). OBJECTIVES: To assess gastric emptying changes after LSG and their relationship with GLP-1 secretion. SETTING: San Salvatore Hospital general surgery unit, University of L'Aquila, Italy. METHODS: 52 patients underwent gastric emptying scintigraphy for liquid and solid foods, before and 3 months after LSG...
August 4, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
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