Background & Objectives: Ghrelin is an orexigenic gut hormone expressed by the gastric fundus. Laparoscopic sleeve gastrectomy (LSG) procedure involves resection of the gastric fundus leading to a decreased appetite and weight loss. This study was undertaken to determine the levels of plasma ghrelin after sleeve gastrectomy in obese patients.
Methods: The study was conducted on 90 morbidly obese patients [body mass index (BMI) >40 kg/m] and severely obese patients (BMI >35/kg/m) who underwent sleeve gastrectomy. The patients were followed up for six months. Weight loss parameters and plasma ghrelin levels were assessed pre- and postoperatively.
Results: A significant weight loss and decrease in BMI were observed at three and six months postoperatively. A significant decrease in plasma ghrelin levels over six months of follow up postoperatively was also seen.
Interpretation & Conclusions: These preliminary findings indicated inhibition of ghrelin production after LSG leading to a decrease in the plasma ghrelin levels within a few days of surgery and sustainable weight loss in obese patients.
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http://dx.doi.org/10.4103/ijmr.IJMR_984_18 | DOI Listing |
Pol J Vet Sci
June 2024
Department of Anatomy, Medical Faculty, Mardin Artuklu University, Artuklu, 47200, Mardin, Turkey.
In this study, the relationship between plasma ghrelin levels and muscle atrophy was examined in an experimental diabetic rat model. 56 male Wistar albino rats, aged 8-10 weeks, were used in the study. The rats were divided into 8 groupsD1: one-week diabetes, C1: one-week control, D2: three-week diabetes, C2: three-week control, D3: six-week diabetes, C3: six-week control, D4: eight-week diabetes, C4: eight-week control.
View Article and Find Full Text PDFClin Obes
December 2024
Division of Gastroenterology-Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands. NUTRIM-School for Nutrition and Translational Research in Metabolism, Maastricht, the Netherlands.
Background: Bariatric surgery is very effective in long-term weight management. The present study was undertaken to investigate the short-term effects of sleeve gastrectomy (SG) and of Roux-en-Y gastric bypass (RYGB) on (a) gastrointestinal (GI) motility, that is gastric emptying and oro-cecal transit time and (b) secretion of regulatory gut peptides and (c) their interrelationship.
Methods: Prospective single-centre study in which we assessed gastric emptying, oro-cecal transit time and gut peptide release in 28 severely obese individuals before and 2, respectively, 12 months after bariatric surgery (either SG or RYGB).
Clin Obes
December 2024
Human Translational Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
The endocrine consequences of weight loss by bariatric surgery (BS) and caloric restriction are not fully understood but contribute to variable improvements in insulin sensitivity and cardiometabolic health. This study compared changes in insulin sensitivity and plasma concentrations of gut peptides 8 weeks and 1 year after BS and a low-calorie diet (LCD). Nineteen female patients with obesity self-selected BS (gastric bypass [n = 5] or sleeve gastrectomy [n = 7]) or LCD (n = 7) in this parallel-arm, prospective observational study.
View Article and Find Full Text PDFJ Endocr Soc
November 2024
PsychoNeuroEndocrinology Research Group, Division of Psychiatry, Department of Brain Sciences, Imperial College London, Hammersmith Hospital, London W12 0NN, UK.
Context: The liver/foregut satiety hormone liver-expressed antimicrobial peptide 2 (LEAP2) is an inverse agonist at the acyl ghrelin receptor (GHSR), increasing after food intake and decreasing after bariatric surgery and short-term nonsurgical weight loss, but effects of long-term dietary weight loss are unknown.
Objective: The objective of this study was to examine and compare the effects of these interventions on fasting and postprandial plasma LEAP2 and investigate potential metabolic mediators of changes in plasma LEAP2.
Methods: Plasma LEAP2 was measured in a previously published 2-year trial comparing standard medical management (SMM) (including 600-kcal/day deficit) with duodenal-jejunal bypass liner (DJBL, Endobarrier) insertion (explanted after 1 year) in adults with obesity and inadequately controlled type 2 diabetes mellitus.
PLoS One
November 2024
Department of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan.
Social isolation affects physical functioning owing to psychological stress. We constructed a rat model to clarify the unexplored effects of social isolation and to determine whether environmental changes as an intervention against social isolation can reduce the stress-inducing effects of social isolation on physiological factors. Eight-week-old male rats were divided into three groups: group-housed, isolated, and intervention.
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