Background: The aim of this study was to investigate the visceral sensation to gastric stimulation and its correlation with the stimulation-induced alterations in gastric accommodation and gastric emptying.

Methods: The study was performed in 12 healthy human controls. Gastric stimulation was performed using bipolar electrodes attached to the mucosa of the distal stomach under endoscopy. Experiments were conducted on 3 consecutive days to investigate the effects of gastric stimulation with various parameters on visceral sensation, maximum intake of water and gastric emptying of solids.

Results: 1) The stimulation energy was 265.6 +/- 134.9 smA 2 for the first sensation and 2,020.0 +/- 865.1 smA2 for the maximum tolerance, and there was a large variation among the subjects; 2) Gastric stimulation with stimulation energy less than 50% of that required to induce the first sensation significantly reduced the maximum intake of water and delayed gastric emptying of solids without inducing symptoms; 3) The stimulation energy of the first sensation was significantly correlated with the stimulation-induced reduction in water intake (r=-0.80, P=0.02) and the stimulation-induced prolongation of gastric emptying (r=-0.78, P=0.003). That is, the inhibitory effects of gastric stimulation were more obvious in those subjects who were viscerally more sensitive to gastric stimulation.

Conclusions: Gastric stimulation via the distal stomach reduces gastric accommodation and delays gastric emptying. These inhibitory effects are correlated with the visceral sensitivity of the individual to gastric stimulation. It is worthy to further investigate whether the outcome of the implantable gastric stimulation (IGS) therapy for obesity may be predicted from the visceral sensitivity of the patient to temporary gastric stimulation using endoscopically placed mucosal electrodes.

Download full-text PDF

Source
http://dx.doi.org/10.1381/0960892053268363DOI Listing

Publication Analysis

Top Keywords

gastric stimulation
40
gastric emptying
20
gastric
19
stimulation
13
visceral sensitivity
12
stimulation energy
12
stimulation correlation
8
alterations gastric
8
visceral sensation
8
gastric accommodation
8

Similar Publications

Risk Factors Predicting Outcomes in Advanced Upper Gastrointestinal Cancers Treated With Immune Checkpoint Inhibitors.

Gastroenterology Res

December 2024

Division of Medical Oncology, Department of Internal Medicine, The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA.

Background: Immune checkpoint inhibitors (ICIs) have moved to the frontline in recent years to manage upper gastrointestinal (UGI) tumors, such as esophageal and gastric cancers. This retrospective review sheds light on real-world data on ICI-treated UGI tumors to identify risk factors (clinical and pathological) impacting the outcome other than traditional biomarkers (programmed cell death ligand 1 (PD-L1) or microsatellite instability status).

Methods: Patients with UGI tumors who received at least one dose of ICI for stage IV or recurrent disease between January 1, 2015, and July 31, 2021, at The Ohio State University were included in the study.

View Article and Find Full Text PDF

Novel Modifications and Delivery Modes of Cyclic Dinucleotides for STING Activation in Cancer Treatment.

Int J Nanomedicine

January 2025

Division of Gastric Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China.

The microenvironment tends to be immunosuppressive during tumor growth and proliferation. Immunotherapy has attracted much attention because of its ability to activate tumor-specific immune responses for tumor killing. The cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway is an innate immune pathway that activates antitumor immunity by producing type I interferons.

View Article and Find Full Text PDF

Exploring the mechanisms of Yang Wei Shu granule for the treatment of chronic atrophic gastritis using UPLC-QTOF-MS/MS, network pharmacology, and cell experimentation.

J Ethnopharmacol

January 2025

College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012 Anhui, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012 Anhui, China; MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei 230012 Anhui, China; Anhui Engineering Research Center for Quality Improvement and Utilization of Genuine Chinese Medicinal Materials, Hefei 230012 Anhui, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Anhui University of Chinese Medicine, Hefei 230012 Anhui, China. Electronic address:

Article Synopsis
  • YWSG is an herbal compound derived from ancient Chinese medicine used for treating chronic atrophic gastritis (CAG), which can lead to gastric cancer.
  • The study aims to identify the chemical composition of YWSG and understand its mechanisms of action through advanced analytical techniques and network pharmacology.
  • Results revealed 150 compounds in YWSG, with several target genes identified as potential therapeutic targets, and experiments indicated that YWSG does not harm certain immune cells while inhibiting nitric oxide production.
View Article and Find Full Text PDF

Type 2 diabetes (T2D), the most common form, is marked by insulin resistance and β-cell failure. β-cell dysfunction under high-glucose-high-lipid (HG-HL) conditions is a key contributor to the progression of T2D. This study evaluates the comparative effects of 10 nM semaglutide, 10 nM tirzepatide, and 1 mM metformin, both alone and in combination, on INS-1 β-cell maintenance and function under HG-HL conditions.

View Article and Find Full Text PDF

Weaning in piglets presents significant physiological and immunological challenges, including gut dysbiosis and increased susceptibility to post-weaning diarrhoea (PWD). Abrupt dietary, environmental, and social changes during this period disrupt the intestinal barrier and microbiota, often necessitating antimicrobial use. Sustainable dietary strategies are critical to addressing these issues while reducing reliance on antimicrobials.

View Article and Find Full Text PDF

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!