BACKGROUND: The mechanism for weight loss following gastroplasty surgery is unknown. A few studies have checked gastric emptying patterns following gastroplasty, but none have analyzed their pattern over time. METHODS: Gastric emptying half-time of Tc-99 phytate-labeled semi-solid meal was studied in 23 obese non-diabetic and one diabetic patient (BMI 34.6-55.7). Gastric emptying was measured by gamma scintigraphy before Silastic Ring Vertical Gastroplasty (SRVG) and 1, 3 and 6 months following surgery. RESULTS: Gastric emptying half-times were maximal in all areas of the stomach 1 month after operation, declined to base-line 3 months following the procedure, and showed statistically significant delay in the upper area of the stomach 6 months after the operation. No correlation was found between the delay in food passage following surgery and loss of weight. CONCLUSIONS: Prolongation of gastric emptying half-time following surgery may be a result of two separate mechanisms: asymptomatic or early inflammatory processes in the ring area and pouch distention as a result of partial denervation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1381/096089296765556331 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Engineering a high-throughput clone for industrial-scale production of long-acting GLP-1 analogue with retained bio-efficacy.
Biotechnol Prog
January 2025
Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
Type 2 diabetes mellitus (T2DM) and obesity are critical global health issues with rising incidence rates. Glucagon-like peptide-1 (GLP-1) analogues have emerged as effective treatments due to their ability to regulate blood glucose levels and gastric emptying through central nervous signals involving hypothalamic receptors, such as leptin. To address the short plasma half-life of native GLP-1, a C-16 fatty acid was conjugated to lysine in the GLP-1 analogue sequence to enhance its longevity.
View Article and Find Full Text PDFExamining the Impact of Diet-and-Exercise-Induced Weight Loss on Drug Metabolism and Gastric Emptying in Patients with Obesity.
J Clin Pharmacol
January 2025
Department of Clinical Pharmacy, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA.
Obesity significantly influences drug pharmacokinetics (PK), which challenges optimal dosing. This study examines the effects of diet-and-exercise-induced weight loss on key drug-metabolizing enzymes and gastric emptying in patients with obesity, who frequently require medications for comorbidities. Participants followed a structured weight management program promoting weight loss over 3-6 months and were not concomitantly on potential CYP inducers or inhibitors.
View Article and Find Full Text PDFDigestion of food proteins: the role of pepsin.
Crit Rev Food Sci Nutr
January 2025
Riddet Institute, Massey University, Palmerston North, New Zealand.
The nutritive value of a protein is determined not only by its amino acid composition, but also by its digestibility in the gastrointestinal tract. The interaction between proteins and pepsin in the gastric stage is the first step and plays an important role in protein hydrolysis. Moreover, it affects the amino acid release rates and the allergenicity of the proteins.
View Article and Find Full Text PDFPerioperative Use of GLP-1 Receptor Agonists in Patients Undergoing Cardiac Procedures: A Scoping Review.
Heart Lung Circ
January 2025
Department of Cardiology, St Vincent's Hospital Melbourne, Melbourne, Vic, Australia; Heart, Exercise and Research Trials (HEART) Laboratory, St Vincent's Institute of Medical Research, Melbourne, Vic, Australia; Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Vic, Australia.
Background: Glucagon-like peptide-1 receptor agonist (GLP-1RA) therapies are increasingly used for the treatment of type 2 diabetes mellitus and obesity. Despite growing awareness of potentially increased risk of pulmonary aspiration due to delayed gastric emptying, the risks and benefits of their perioperative use in patients undergoing cardiac procedures remains unexplored. A scoping review was performed to investigate the perioperative GLP-1RA use in patients undergoing cardiac procedures and recommendations.
View Article and Find Full Text PDFEndoscopy and Anesthesia Outcomes Associated with Glucagon-Like Peptide-1 Receptor Agonist use in Patients Undergoing Outpatient Upper Endoscopy.
Gastrointest Endosc
January 2025
Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; Division of Digestive Diseases, Department of Internal Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH. Electronic address:
Background And Aims: Glucagon-like peptide-1 receptor agonists (GLP1RAs) can cause delayed gastric emptying, raising concern for retained gastric contents (RGCs) during endoscopy and adverse anesthesia events. We aimed to determine associations between GLP1RA and endoscopy and anesthesia outcomes.
Methods: This single-center retrospective cohort study examined patients prescribed GLP1RA who underwent outpatient endoscopy stratified by exposure at the time of endoscopy.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!