Background And Objective: Ghrelin is a gastrointestinal peptide involved in regulation of body weight and energy balance. However, its behavior after bariatric surgery and its relationship to insulin resistance are still controversial. A simultaneous assessment was made of the association between changes in ghrelin levels and different variables after three types of bariatric surgery.
Patients And Methods: Ghrelin levels were measured in 103 morbidly obese subjects before and 6 months after bariatric surgery (Roux-en-Y gastric bypass (RYGB), biliopancreatic diversion of Scopinaro (BPD), and sleeve gastrectomy (SG)), and in 21 non-obese subjects.
Results: Ghrelin levels increased after RYGB (p<0.05), were unchanged after BPD, and decreased after SG (p<0.05). The percent change in ghrelin levels (Δ-ghrelin) was associated to the type of surgery in a multiple linear regression model (p=0.017). When the same analysis was only performed in subjects in whom the gastric fundus was maintained (RYGB and BPD), Δ-ghrelin was negatively associated to Δ-HOMA-IR (p=0.001). In morbidly obese subjects who underwent RYGB and BPD, the odds ratio of a lower Δ-HOMA-IR in patients with Δ-ghrelin in the Q1 quartile versus those with Δ-ghrelin in the Q4 quartile was 8.74 (1.73-44.06) (p=0.009).
Conclusions: Changes in ghrelin levels after bariatric surgery are associated to the presence or absence of the gastric fundus. After bariatric surgery, the decrease in insulin resistance was associated to increased ghrelin levels in procedures in which the fundus is not excluded.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.endinu.2017.05.002 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Inhibition of the MyD88 signaling pathway could upregulates Ghrelin expression to synergistically regulate hepatic -infected progression.
Front Immunol
January 2025
State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medicine Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
Introduction: AE and whether the inhibition of the MyD88 inflammatory pathway can enhance Ghrelin expression to collaboratively modulate AE progression remains unclear.
Methods: In this study, we evaluated Ghrelin serum levels and changes in TLR4/MyD88/NF-κB pathway proteins and inflammatory factors in AE patients and mouse models at different stages of infection (-4, -8, and -12 weeks). Additionally, we administered the MyD88 inhibitor TJ-M2010-5 intraperitoneally to infected mice to evaluate alterations in inflammation and Ghrelin levels, as well as disease progression.
Satiety-enhancing placebo intervention decreases selective attention to food cues.
Front Psychiatry
December 2024
Institute of Medical Psychology, Faculty of Medicine, Ludwig-Maximilians-University Munich, Munich, Germany.
Background: As placebo interventions could influence appetite and satiety in first studies, they are a promising tool for the future treatment of obesity. Furthermore, individuals with heightened body weight show increased selective attention for food cues. This study aimed to investigate whether placebo induced changes of appetite and satiety can affect attention allocation and to examine correlating factors.
View Article and Find Full Text PDFLiangxue Tongyu Prescription exerts neuroprotection by regulating the microbiota-gut-brain axis of rats with acute intracerebral hemorrhage.
Brain Res Bull
December 2024
School of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China; Department of Neurology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210022, China. Electronic address:
Liangxue Tongyu Prescription (LTP) is a classic herbal formula for treating acute intracerebral hemorrhage (AICH) in China. Previous studies have shown that LTP significantly ameliorates neurological impairments and gastrointestinal dysfunction in patients with AICH. However, the underlying molecular mechanism remains unclear.
View Article and Find Full Text PDFInvestigation of the relationship between plasma ghrelin levels and muscle atrophy in experimental diabetic rats.
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 PDFChanges in gastrointestinal motility and gut hormone secretion after Roux-en-Y gastric bypass and sleeve gastrectomy for individuals with severe obesity.
Clin 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).
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!