Article
Engineering, Multidisciplinary
Y. Ye-Lin, J. L. Martinez-De-Juan, A. Jareno-Silvestre, G. Prats-Boluda
Summary: This study explored the potential of using concentric ring electrodes (CRE) to improve the spatial resolution of electrogastrogram (EGG) recordings for detecting gastric myoelectric activity. The results showed that the BC EGG records with CRE had a lower signal amplitude than bipolar recordings, but were less affected by cardiac interference, with a high slow wave (SW) detectability rate above 80%. Additionally, both fasting and postprandial EGG records using CRE exhibited similar gastric SW frequency and postprandial/fasting power ratio, suggesting the feasibility of using CRE for identifying gastric myoelectric activity.
Article
Gastroenterology & Hepatology
Suseela Somarajan, Nicole D. Muszynski, Joseph D. Olson, Andrew Comstock, Alexandra C. Russell, Lynn S. Walker, Sari A. Acra, Leonard A. Bradshaw
Summary: The study utilized high-resolution electrogastrograms to identify significant differences in gastric slow wave parameters between pediatric chronic nausea patients and healthy subjects. Patients demonstrated various abnormal propagation patterns, while healthy subjects showed predominantly anterograde propagation. These findings could lead to potential diagnostic and therapeutic tools for chronic nausea patients.
NEUROGASTROENTEROLOGY AND MOTILITY
(2021)
Review
Surgery
Xu Han, Hong Zhu
Summary: This article introduces the advantages of endoscopic mucosal electrodes compared with traditional electrodes, as well as several different types of mucosal electrodes and how to fix them using an endoscope. Endoscopic mucosal electrodes can record and regulate gastric myoelectric activity, making them valuable in the study of gastric motility. They have higher accuracy, less trauma, and lower cost than traditional cutaneous and serosal electrodes. Endoscopic mucosal electrodes have promising applications in diseases such as gastroparesis and obesity.
FRONTIERS IN SURGERY
(2023)
Article
Medicine, Research & Experimental
Amal Shine, Prateek Mathur, Shifat Ahmed, Steven Ramos, Lindsay McElmurray, Abigail Stocker, Christina Pinkston, Thomas L. Abell
Summary: This study evaluated the clinical importance of temporary gastric electrical stimulation (tGES) and its correlation with electrogastrograms (EGGs), mucosal electrograms (mEGs), gastric emptying tests (GETs), and gastrointestinal symptoms. The results showed that EGG is valuable in the diagnosis of delayed gastric emptying and is comparable with mEG. EGG measurements like frequency, amplitude, and propagation appear to be reliable measures. Shorter recording times may be adequate to observe changes from bioelectric therapies.
Article
Gastroenterology & Hepatology
Suseela Somarajan, Nicole D. Muszynski, Joseph D. Olson, Alexandra C. Russell, Lynn S. Walker, Sari A. Acra, Leonard A. Bradshaw
Summary: The study demonstrates that multichannel MGG used in conjunction with custom HR-EGG detects key pathological signatures of functional nausea in children. This quantifiable measure may allow more personalized diagnosis and treatment in addition to minimizing the cost and potential radiation associated with current diagnostic approaches.
AMERICAN JOURNAL OF PHYSIOLOGY-GASTROINTESTINAL AND LIVER PHYSIOLOGY
(2022)
Article
Medicine, General & Internal
Keno Mentor, Jade Lembo, Samantha Carswell, Mike Jones, Sanjay Pandanaboyana
Summary: This study aims to investigate the mechanism of delayed gastric emptying (DGE) after pancreaticoduodenectomy (PD) by using body surface gastric mapping (BSGM) to assess gastric motility in postoperative PD patients. The study will be conducted at a large hepatobiliary unit in the UK, with 50 planned PD patients included. BSGM measurements will be performed at four timepoints and key parameters will be compared between different patient subgroups. Symptoms will be self-reported by patients during the recording using an iPad application, and quality of life and patient experience will be assessed using standardized questionnaires.
Article
Gastroenterology & Hepatology
Noemi Caballero, Ingrid Marin, Jordi Serra
Summary: This study evaluated transit and tolerance of gastric gas in patients with functional gastrointestinal disorders, finding that different types of patients exhibited distinct responses to gas, suggesting that therapeutic interventions should be tailored to specific pathophysiological disturbances.
NEUROGASTROENTEROLOGY AND MOTILITY
(2021)
Article
Clinical Neurology
James Beharry, David Palmer, Teddy Wu, Duncan Wilson, Campbell Le Heron, Deborah Mason, Jon Reimers, John Fink, Roger Mulder, Roderick Duncan
Summary: A study at Christchurch Hospital in New Zealand found that FND patients accounted for a significant proportion of acute neurology admissions, with high healthcare resource utilization. Patients were mainly female with an average age of 40, and most had a hospital stay of around 3 days. The rate of acute inpatient admission for FND varied in different areas.
EUROPEAN JOURNAL OF NEUROLOGY
(2021)
Article
Multidisciplinary Sciences
Corinne Legeret, Yvonne Stienen, Raoul Furlano, Henrik Koehler
Summary: Functional dyspepsia is a common condition in children that affects their family and quality of life. This study aimed to analyze the outcomes of different treatments for pediatric patients diagnosed with functional dyspepsia. The results showed that most patients benefited from education, reassurance, and a recommendation of a healthy lifestyle. Some patients might benefit from medications, small changes in the diet, psychological support, or alternative treatment, but success depended on individual, unpredictable factors.
SCIENTIFIC REPORTS
(2022)
Review
Nutrition & Dietetics
Stefan Lucian Popa, Dinu Iuliu Dumitrascu, Cristina Pop, Teodora Surdea-Blaga, Abdulrahman Ismaiel, Giuseppe Chiarioni, Dan Lucian Dumitrascu, Vlad Dumitru Brata, Simona Grad
Summary: Functional dyspepsia is a common and prevalent disorder of the brain-gut interaction, affecting quality of life. Traditional pharmacological agents have limited efficacy, leading patients to seek other medical and non-medical solutions. Recent research highlights the importance of psychological therapies and nutritional recommendations, but there is a correlation between functional dyspepsia and food intolerances, leading to the adoption of exclusion diets that may negatively impact weight, eating behavior, and nutrition.
Article
Multidisciplinary Sciences
Manori Vijaya Kumari, Lakmali Amarasiri, Shaman Rajindrajith, Niranga Manjuri Devanarayana
Summary: Gastric motility was impaired in children with asthma, FAPDs, and both disorders, with the motility index showing positive correlation with lung function parameters, suggesting a potential pathophysiological mechanism involving smooth muscle activity in the airways and gastrointestinal wall.
Article
Multidisciplinary Sciences
Jae Yong Park, Hochan Seo, Chil-Sung Kang, Tae-Seop Shin, Jong Won Kim, Joong-Min Park, Jae Gyu Kim, Yoon-Keun Kim
Summary: There are significant changes in the diversity and composition of gastric microbiome during the gastric carcinogenesis process. Gastric cancer is characterized by microbial dysbiosis and functional changes that may promote carcinogenesis.
SCIENTIFIC REPORTS
(2022)
Article
Biochemistry & Molecular Biology
Ann-Katrin Holik, Kerstin Schweiger, Verena Stoeger, Barbara Lieder, Angelika Reiner, Muhammet Zopun, Julia K. Hoi, Nicole Kretschy, Mark M. Somoza, Stephan Kriwanek, Marc Pignitter, Veronika Somoza
Summary: Serotonin is predominantly found in the gastrointestinal tract of mammals and plays a role in regulating satiation, with gastric distension-induced serotonin release contributing to satiation after food intake. Human gastric cells have the capability to synthesize and release serotonin, with released serotonin impacting proton secretion post L-Arg treatment. This suggests a potential mechanism for peripheral serotonin release related to HTR3 activation in gastric cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Psychology, Biological
Ignacio Rebollo, Mine Schmidt, Luke Longren, Soyoung Park
Summary: The study found that autonomic control of the stomach is related to craving, and is modulated by visual food cues. High-appeal food pictures led to increased pupil diameter, and craving ratings were associated with increases in pupil diameter and tonic electrodermal activity.
BIOLOGICAL PSYCHOLOGY
(2021)
Article
Medicine, Research & Experimental
Qi Zhou, Yiwu Yuan, Hao Lu, Xueqin Li, Ziyang Liu, Jinheng Gan, Zhenqi Yue, Jiping Wu, Jie Sheng, Lin Xin
Summary: By categorizing gastric cancer into three subtypes based on 14 cancer functional states, we identified distinct characteristics and differences between the subtypes at the single-cell level. The subtypes differed in terms of tumor progression, prognosis, metabolic level, immune cell infiltration, copy number variations, tumor mutational burden, and response to immunotherapy. Additionally, we developed a prognostic model based on cancer functional status that showed robustness.
JOURNAL OF TRANSLATIONAL MEDICINE
(2023)
Meeting Abstract
Gastroenterology & Hepatology
Suseela Somarajan, Nicole D. Muszynski, Alexandra Russell, Brittney Gorman, Sari Acra, Leo K. Cheng, Leonard A. Bradshaw
Article
Chemistry, Analytical
Brittney L. Gorman, Mary L. Kraft
ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Brittney L. Gorman, Melanie A. Brunet, Susan N. Pham, Mary L. Kraft
Article
Biophysics
Brittney L. Gorman, Melanie A. Brunet, Mary L. Kraft
Summary: A depth correction strategy using pixel intensities from secondary electron images in negative-ion NanoSIMS depth profiling was developed to reconstruct sample morphology and correct 3D SIMS images. The approach successfully matched lipid-specific isotope enrichments in 3D renderings to subcellular compartments, revealing potential subcellular structures without the need for correlated analyses or additional secondary ion signals.
Article
Chemistry, Multidisciplinary
Melanie A. Brunet, Brittney L. Gorman, Mary L. Kraft
Summary: This study presents a depth correction strategy for accurate 3D NanoSIMS imaging of intracellular component distributions. It uses secondary ion and secondary electron depth profiling images to reconstruct cell morphology and adjust voxel positions and heights in component-specific 3D NanoSIMS images.
Article
Chemistry, Analytical
Isamar Pastrana-Otero, Sayani Majumdar, Aidan E. Gilchrist, Brittney L. Gorman, Brendan A. C. Harley, Mary L. Kraft