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Gastric emptying

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https://www.readbyqxmd.com/read/27923696/correlating-gastric-emptying-of-amphotericin-b-and-paracetamol-solid-lipid-nanoparticles-with-changes-in-particle-surface-chemistry
#1
Hilda Amekyeh, Nashiru Billa, Clive Roberts
Oral delivery of pharmaceuticals requires that they retain their physical and chemical attributes during transit within the gastrointestinal (GI) tract, for the manifestation of desired therapeutic profiles. Solid lipid nanoparticles (SLNs) are used as carriers to improve the absorption of hydrophobic drugs. In this study, we examine the stability of amphotericin B (AmB) and paracetamol (PAR) SLNs in simulated GI fluids during gastric emptying. On contact with the simulated fluids, the particles increased in size due to ingress of the dissolution media into the particles...
December 3, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27922772/sarcina-ventriculi-review-of-the-literature
#2
Mohamed Rizwan Haroon Al Rasheed, Carmencita G Senseng
Sarcina ventriculi is an increasingly common gram-positive coccus, recognized in gastric biopsies, particularly of patients with delayed gastric emptying. It occurs most commonly in adult women and can be identified easily by its characteristic morphologic features, such as basophilic staining, cuboid shape, tetrad arrangement, red blood cell-sized packets, flattened cell walls, and refractile nature on light microscopy. Although the pathogenesis of the organism is debated, it has been implicated in cases of gastric perforation, emphysematous gastritis, and peritonitis as well as occurring in the background of gastric adenocarcinomas...
December 2016: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/27916475/effects-of-polydextrose-with-breakfast-or-with-a-midmorning-preload-on-food-intake-and-other-appetite-related-parameters-in-healthy-normal-weight-and-overweight-females-an-acute-randomized-double-blind-placebo-controlled-and-crossover-study
#3
Alvin Ibarra, Kaisa Olli, Wilrike Pasman, Henk Hendriks, Esa Alhoniemi, Ghulam Shere Raza, Karl-Heinz Herzig, Kirsti Tiihonen
Polydextrose (PDX) reduces subsequent energy intake (EI) when administered at midmorning in single-blind trials of primarily normal-weight men. However, it is unclear if this effect also occurs when PDX is given at breakfast time. Furthermore, for ecological validity, it is desirable to study a female population, including those at risk for obesity. We studied the effects of PDX, served as part of a breakfast or midmorning preload, on subsequent EI and other appetite-related parameters in healthy normal-weight and overweight females...
December 1, 2016: Appetite
https://www.readbyqxmd.com/read/27916060/-the-453rd-case-diarrhea-weight-loss-and-diabetes-mellitus
#4
S T Wang, D R Zhong, X H Sun
Chronic diarrhea is a common complaint in gastroentology department, which is classified into a variety of types. While as eosinophilic gastroenteritis is a rare cause. A 50-year-old male patient was admitted with a 2-year history of diarrhea worsened for 10 months. Fasting could alleviate the diarrhea. Laboratory findings demonstrated anemia, low vitamins and minerals, fat malabsorption and abnormal D-xylose absorption test, delayed gastric emptying. According to the endoscopic biopsy of gastrointestinal mucosa, the diagnosis of eosinophilic gastroenteritis was made...
December 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/27915009/exploring-gastrointestinal-variables-affecting-drug-and-formulation-behavior-methodologies-challenges-and-opportunities
#5
REVIEW
Bart Hens, Maura Corsetti, Robin Spiller, Luca Marciani, Tim Vanuytsel, Jan Tack, Arjang Talattof, Gordon L Amidon, Mirko Koziolek, Werner Weitschies, Clive G Wilson, Roelof J Bennink, Joachim Brouwers, Patrick Augustijns
Various gastrointestinal (GI) factors affect drug and formulation behavior after oral administration, including GI transfer, motility, pH and GI fluid volume and composition. An in-depth understanding of these physiological and anatomical variables is critical for a continued progress in oral drug development. In this review, different methodologies (invasive versus non-invasive) to explore the impact of physiological variables on formulation behavior in the human GI tract are presented, revealing their strengths and limitations...
November 30, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27904579/comparison-of-pyloromyotomy-pyloric-buginage-and-intact-pylorus-on-gastric-drainage-in-gastric-pull-up-surgery-after-esophagectomy
#6
Gholamreza Mohajeri, Seyed Abbas Tabatabaei, Seyed Mozafar Hashemi, Hamidreza Hemmati
BACKGROUND: There are controversies regarding the usefulness of the pyloric drainage methods after esophagectomy as well as differences among various pyloric drainage techniques. Therefore, we compared the outcome of pyloromyotomy, pylorus buginage, and no intervention methods on gastric emptying among patients undergone esophagectomy. MATERIALS AND METHODS: In this randomized clinical trial, patients with diagnosed esophageal cancer or any other benign lesions candidate for esophagectomy were selected...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27900560/serum-leptin-obestatin-and-ghrelin-levels-and-gastric-emptying-rates-of-liquid-and-solid-meals-in-non-obese-rats-with-roux-en-y-bypass-surgery-or-prosthesis-placement-implications-for-the-role-of-vagal-afferents
#7
Yunus Yavuz, Zarife Nigar Özdemir Kumral, Gülsün Memi, Özge Dağdeviren Çevik, Cumhur Yeğen, Berrak Ç Yeğen
BACKGROUND: The present study aimed to investigate the effects of Roux-en-Y gastric bypass (RYGB) and prosthesis placement on gastric emptying rate in conjunction with serum ghrelin-obestatin-leptin responses in non-obese rats with intact or denervated afferent innervation. METHODS: Under anesthesia, male Sprague-Dawley rats underwent either sham operation, RYGB, prosthesis, and/or Gregory cannula placement. Three weeks later, liquid or solid gastric emptying tests were performed and serum ghrelin, leptin and obestatin levels were measured...
November 29, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27898951/intrauterine-growth-restricted-piglets-have-similar-gastric-emptying-rates-but-lower-rectal-temperatures-and-altered-blood-values-when-compared-with-normal-weight-piglets-at-birth
#8
C Amdi, M V Klarlund, J Hales, T Thymann, C F Hansen
Intrauterine growth-restricted (IUGR) piglets have lower survival rates and are more likely to have empty stomachs 24 h after birth than normal piglets. Although hypoglycemia may result from low colostrum intake per se, it is not known if slow gastric emptying may be an additional risk factor for poor immunization and glucose absorption in IUGR piglets. It is estimated that IUGR piglets consume less colostrum per kilogram BW than normal-weight piglets within the first 24 h, which could be due to a slower gastric emptying rate and a compromised energy metabolism...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898643/effect-of-different-osmolalities-cho-types-and-cho-on-gastric-emptying-in-humans
#9
Xiaocai Shi, Kristin L Osterberg, Heather Petrie, John R Stofan, Robert Murray
PURPOSE: This study investigated the effect of beverage osmolalities, carbohydrate (CHO) type and CHO concentration on gastric emptying in euhydrated subjects at rest. METHODS: The gastric emptying of water (W), four glucose beverages (2, 4, 6, and 8% glucose: 2G, 4G, 6G, and 8G) and four sucrose beverages (2, 4, 6, and 8% sucrose: 2S, 4S, 6S, and 8S) were determined in eight healthy subjects using the modified George double-sampling technique. Subjects ingested a beverage (7 ml/kg body weight) containing 25-ppm phenol red as quickly as possible (≤1...
November 28, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27896652/the-long-term-efficacy-and-safety-of-pyloroplasty-combined-with-gastric-electrical-stimulation-therapy-in-gastroparesis
#10
Brian R Davis, Irene Sarosiek, Mohammad Bashashati, Ben Alvarado, Richard W McCallum
INTRODUCTION: Gastroparesis is delayed gastric emptying without mechanical obstruction. Symptomatic improvement can be 50-60% with gastric electrical stimulation. To address delayed gastric emptying, pyloroplasty was added. This study examines the long-term efficacy and safety of simultaneous gastric electrical stimulator implantation and pyloroplasty. METHODS: In this prospective single-arm trial conducted from 2012 to 2015, 27 [23 females; mean age 43 (22-63)] gastroparesis patients who underwent simultaneous gastric electrical stimulator implantation with Heineke-Mikulicz pyloroplasty were studied...
November 28, 2016: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/27890710/in-vivo-and-vitro-characterization-of-the-effects-of-kisspeptin-13-endogenous-ligands-for-gpr54-on-mouse-gastrointestinal-motility
#11
Jinhong Jiang, Weidong Jin, Yali Peng, Zhen He, Lijuan Wei, Shu Li, Xiaoli Wang, Min Chang, Rui Wang
Kisspeptin (KP), the endogenous ligand of GPR54, is a mammalian amidated neurohormone, which belongs to the RF-amide peptide family. However, in contrast with the related members of the RF-amide family, little information is available regarding its role in the gastrointestinal motility. With regard to the recent data suggesting KP play an important role in food intake, and while gastrointestinal motility are closely related to it. Thus, in the present work, effects of central administration of KP-13, one of the endogenous active isoforms, on gastrointestinal motility were investigated...
November 25, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27889322/landmark-reading-alterations-in-patients-with-gastro-oesophageal-reflux-symptoms-undergoing-diagnostic-gastroscopy
#12
Mustafa Kaplan, Alpaslan Tanoglu, Yusuf Serdar Sakin, Taner Akyol, Kemal Oncu, Muammer Kara, Yusuf Yazgan
BACKGROUND AND STUDY AIMS: There is still a debate about the exact measurement of the oesophagogastric junction and the diaphragmatic hiatus among clinicians. The aim of this study was to investigate the differences between landmark readings of gastroscopy on intubation and extubation, and to correlate these readings with a gastro-oesophageal reflux questionnaire. PATIENTS AND METHODS: 116 cases who underwent diagnostic gastroscopy between January 2013 and June 2013 were included in this study...
November 23, 2016: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/27880079/relationship-between-gastric-emptying-and-diurnal-glycemic-control-in-type-1-diabetes-mellitus-a-randomized-trial
#13
Gopanandan Parthasarathy, Yogish C Kudva, Phillip A Low, Michael Camilleri, Ananda Basu, Adil E Bharucha
CONTEXT: In type 1 diabetes (T1D), delayed gastric emptying (GE) may predispose to a mismatch between insulin delivery and glucose absorption. Previous studies evaluated, only partly, the relationship between delayed GE and postprandial, but not diurnal, glycemia. OBJECTIVE: To assess the relationship between GE disturbances and glycemic control in T1D and the effects of accelerating GE on glycemic control. Design , Setting and Participants: This was a randomized placebo-controlled trial in 30 patients with T1D on an insulin pump at an academic medical center...
November 23, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27875537/effect-of-l-tryptophan-and-l-leucine-on-gut-hormone-secretion-appetite-feelings-and-gastric-emptying-rates-in-lean-and-non-diabetic-obese-participants-a-randomized-double-blind-parallel-group-trial
#14
Anne Christin Meyer-Gerspach, Simon Häfliger, Julian Meili, Alison Doody, Jens F Rehfeld, Jürgen Drewe, Christoph Beglinger, Bettina Wölnerhanssen
BACKGROUND/OBJECTIVES: Gut hormones such as cholecystokinin (CCK) and glucagon-like peptide-1 (GLP-1) play a role as satiation factors. Strategies to enhance satiation peptide secretion could provide a therapeutic approach for obesity. Carbohydrates and lipids have been extensively investigated in relation to peptide release. In contrast, the role of proteins or amino acids is less clear. Our aim was to compare the effects of the amino acids L-tryptophan (L-trp) and L-leucine (L-leu) separately on gastric emptying and gut peptide secretion...
2016: PloS One
https://www.readbyqxmd.com/read/27875281/effect-of-liraglutide-treatment-on-jejunostomy-output-in-patients-with-short-bowel-syndrome-an-open-label-pilot-study
#15
Mark Hvistendahl, Christopher Filtenborg Brandt, Siri Tribler, Rahim Mohammad Naimi, Bolette Hartmann, Jens Juul Holst, Jens Frederik Rehfeld, Mads Hornum, Jens Rikardt Andersen, Birthe Merete Henriksen, Per Brøbech Mortensen, Palle Bekker Jeppesen
BACKGROUND: An impaired hormonal "ileo-colonic brake" may contribute to rapid gastric emptying, gastric hypersecretion, high ostomy losses, and the need for parenteral support in end-jejunostomy short bowel syndrome (SBS) patients with intestinal failure (IF). Liraglutide, a glucagon-like peptide 1 receptor agonist, may reduce gastric hypersecretion and dampen gastric emptying, thereby improving conditions for intestinal absorption. MATERIALS AND METHODS: In an 8-week, open-label pilot study, liraglutide was given subcutaneously once daily to 8 end-jejunostomy patients, aged 63...
October 3, 2016: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27868372/liraglutide-as-adjunct-to-insulin-treatment-in-type-1-diabetes-does-not-interfere-with-glycaemic-recovery-or-gastric-emptying-rate-during-hypoglycaemia-a-randomised-placebo-controlled-double-blind-parallel-group-study
#16
Christian Seerup Frandsen, Thomas Fremming Dejgaard, Henrik Ullits Andersen, Jens Juul Holst, Bolette Hartmann, Birger Thorsteinsson, Sten Madsbad
AIM: Glucagon-like peptide-1 receptor agonist (GLP-1RA) therapy is a potential treatment as adjunct to insulin in type 1 diabetes (T1D). However, GLP-1RAs inhibit glucagon secretion and delay gastric emptying (GE) rate and may impair recovery from hypoglycaemia. We evaluated the effect of the GLP-1RA liraglutide on counterregulatory responses and GE rate during hypoglycaemia in persons with T1D. MATERIALS AND METHODS: In a 12-week, randomised, double-blinded, placebo-controlled study, 20 patients aged >18 years with T1D and HbA1c ≥8% (64 mmol/mol) were randomly assigned (1:1) to liraglutide 1...
November 21, 2016: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27867052/accelerating-mri-fat-quantification-using-a-signal-model-based-dictionary-to-assess-gastric-fat-volume-and-distribution-of-fat-fraction
#17
Dian Liu, Andreas Steingoetter, Helen L Parker, Jelena Curcic, Sebastian Kozerke
To quantify intragastric fat volume and distribution with accelerated magnetic resonance (MR) imaging using signal model-based dictionaries (DICT) in comparison to conventional parallel imaging (CG-SENSE). This study was approved by the local ethics committee and written informed consent was obtained. Seven healthy subjects were imaged after intake of a lipid emulsion and data at three different time points during the gastric emptying process was acquired in order to cover a range of fat fractions. Fully sampled and prospectively undersampled image data at a reduction factor of 4 were acquired using a multi gradient echo sequence at 1...
November 17, 2016: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/27865280/postpancreatectomy-complications-and-management
#18
REVIEW
Giuseppe Malleo, Charles M Vollmer
Although mortality rates after pancreatectomy have decreased, the incidence of postoperative morbidity remains high. The major procedure-related complications are pancreatic fistula, delayed gastric emptying, and postpancreatectomy hemorrhage. The International Study Group of Pancreatic Surgery defined leading complications in a standardized fashion, allowing unbiased comparison of operative results and management strategies. Risk factors for postoperative complications have been investigated and quantitative scoring systems established to estimate patient-specific risks...
December 2016: Surgical Clinics of North America
https://www.readbyqxmd.com/read/27864656/nitric-oxide-and-hydrogen-sulfide-interact-when-modulating-gastric-physiological-functions-in-rodents
#19
Larisse Tavares Lucetti, Renan Oliveira Silva, Ana Paula Macedo Santana, Bruno de Melo Tavares, Mariana Lima Vale, Pedro Marcos Gomes Soares, Francisco José Batista de Lima Júnior, Pedro Jorge Caldas Magalhães, Fernando de Queiroz Cunha, Ronaldo de Albuquerque Ribeiro, Jand-Venes Rolim Medeiros, Marcellus Henrique Loiola Ponte Souza
AIM: The objective was to evaluate the effects of nitric oxide (NO) and hydrogen sulfide (H2S) donors and possible interactions between these two systems in modulating gastric function. METHODS: Mice received saline, sodium nitroprusside (SNP), or sodium hydrosulfite (NaHS), and after 1 h, the animals were killed for immunofluorescence analysis of CSE or eNOS expressions, respectively. Other groups received saline, SNP, NaHS, Lawesson's reagent (H2S donor), PAG + SNP, L-NAME, L-NAME + NaHS, or L-NAME + Lawesson's reagent...
November 18, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27863719/utility-of-feeding-jejunostomy-tubes-in-pancreaticoduodenectomy
#20
Hussein E Waliye, G Paul Wright, Caitlin McCarthy, Jared Johnson, Alex Scales, Andrea Wolf, Mathew Chung
BACKGROUND: Routine placement of jejunostomy tubes (JT) during pancreaticoduodenectomy (PD) is controversial. METHODS: A retrospective chart review of patients undergoing PD from 1/1/08 through 12/31/14 was performed. The patients were divided into groups by placement of JT. Outcome measures were 90-day morbidity, 90-day mortality, length of stay, rate of delayed gastric emptying (DGE), and JT-specific complications. RESULTS: 256 patients were included...
November 8, 2016: American Journal of Surgery
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