{"title":"Evidence-based review and frontiers of migraine therapy.","authors":"Kaitlin A Greene, Amy A Gelfand, Larry Charleston","doi":"10.1111/nmo.14899","DOIUrl":"https://doi.org/10.1111/nmo.14899","url":null,"abstract":"<p><strong>Background: </strong>Cyclic vomiting syndrome (CVS) is identified as one of the \"episodic syndromes that may be associated with migraine,\" along with benign paroxysmal torticollis, benign paroxysmal vertigo, and abdominal migraine. It has been proposed that CVS and migraine may share pathophysiologic mechanisms of hypothalamic activation and altered dopaminergic signaling, and impaired sensorimotor intrinsic connectivity. The past decade has brought groundbreaking advances in the treatment of migraine and other headache disorders. While many of these therapies have yet to be studied in episodic syndromes associated with migraine including CVS and abdominal migraine, the potential shared pathophysiology among these conditions suggests that use of migraine-specific treatments may have a beneficial role even in those for whom headache is not the primary symptom.</p><p><strong>Purpose: </strong>This manuscript highlights newer therapies in migraine. Calcitonin gene-related peptide (CGRP) and its relation to migraine pathophysiology and the therapies that target the CGRP pathway, as well as a 5HT1F receptor agonist and neuromodulation devices used to treat migraine are briefly discussed as they may potentially prove to be useful in the future treatment of CVS.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141917187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sarah Ballou, Dipesh H Vasant, Livia Guadagnoli, Bonney Reed, Giuseppe Chiarioni, Liesbeth Ten Cate, Laurie Keefer, Sarah W Kinsinger
{"title":"A primer for the gastroenterology provider on psychosocial assessment of patients with disorders of gut-brain interaction.","authors":"Sarah Ballou, Dipesh H Vasant, Livia Guadagnoli, Bonney Reed, Giuseppe Chiarioni, Liesbeth Ten Cate, Laurie Keefer, Sarah W Kinsinger","doi":"10.1111/nmo.14894","DOIUrl":"10.1111/nmo.14894","url":null,"abstract":"<p><strong>Background: </strong>GI-specific psychological factors are important contributors to patients' symptom experience and quality of life across all disorders of gut-brain interaction (DGBI). Clinicians' ability to recognize the role of these psychological factors is essential for formulating a biopsychosocial case conceptualization and informing treatment decisions.</p><p><strong>Purpose: </strong>This article will familiarize gastroenterology providers with conceptualizing the role of GI-specific psychological factors in DGBI and provides stepwise, practical guidance for how to assess these during clinical encounters in a time-efficient manner.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141971527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Molecular mechanisms of enteric neuropathies in high-fat diet feeding and diabetes.","authors":"Francesca Cingolani, Arun Balasubramaniam, Shanthi Srinivasan","doi":"10.1111/nmo.14897","DOIUrl":"https://doi.org/10.1111/nmo.14897","url":null,"abstract":"<p><strong>Background: </strong>Obesity and diabetes are associated with altered gastrointestinal function and with the development of abdominal pain, nausea, diarrhea, and constipation among other symptoms. The enteric nervous system (ENS) regulates gastrointestinal motility. Enteric neuropathies defined as damage or loss of enteric neurons can lead to motility disorders.</p><p><strong>Purpose: </strong>Here, we review the molecular mechanisms that drive enteric neurodegeneration in diabetes and obesity, including signaling pathways leading to neuronal cell death, oxidative stress, and microbiota alteration. We also highlight potential approaches to treat enteric neuropathies including antioxidant therapy to prevent oxidative stress-induced damage and the use of stem cells.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141907221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jarrah M Dowrick, Nicole C Roy, Simone Bayer, Chris M A Frampton, Nicholas J Talley, Richard B Gearry, Timothy R Angeli-Gordon
{"title":"Unsupervised machine learning highlights the challenges of subtyping disorders of gut-brain interaction.","authors":"Jarrah M Dowrick, Nicole C Roy, Simone Bayer, Chris M A Frampton, Nicholas J Talley, Richard B Gearry, Timothy R Angeli-Gordon","doi":"10.1111/nmo.14898","DOIUrl":"https://doi.org/10.1111/nmo.14898","url":null,"abstract":"<p><strong>Background: </strong>Unsupervised machine learning describes a collection of powerful techniques that seek to identify hidden patterns in unlabeled data. These techniques can be broadly categorized into dimension reduction, which transforms and combines the original set of measurements to simplify data, and cluster analysis, which seeks to group subjects based on some measure of similarity. Unsupervised machine learning can be used to explore alternative subtyping of disorders of gut-brain interaction (DGBI) compared to the existing gastrointestinal symptom-based definitions of Rome IV.</p><p><strong>Purpose: </strong>This present review aims to familiarize the reader with fundamental concepts of unsupervised machine learning using accessible definitions and provide a critical summary of their application to the evaluation of DGBI subtyping. By considering the overlap between Rome IV clinical definitions and identified clusters, along with clinical and physiological insights, this paper speculates on the possible implications for DGBI. Also considered are algorithmic developments in the unsupervised machine learning community that may help leverage increasingly available omics data to explore biologically informed definitions. Unsupervised machine learning challenges the modern subtyping of DGBI and, with the necessary clinical validation, has the potential to enhance future iterations of the Rome criteria to identify more homogeneous, diagnosable, and treatable patient populations.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141907223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lori B Dershowitz, Hassler Bueno Garcia, Andrew S Perley, Todd P Coleman, Julia A Kaltschmidt
{"title":"Spontaneous enteric nervous system activity generates contractile patterns prior to maturation of gastrointestinal motility.","authors":"Lori B Dershowitz, Hassler Bueno Garcia, Andrew S Perley, Todd P Coleman, Julia A Kaltschmidt","doi":"10.1111/nmo.14890","DOIUrl":"10.1111/nmo.14890","url":null,"abstract":"<p><strong>Background: </strong>Spontaneous neuronal network activity is essential to the functional maturation of central and peripheral circuits, yet whether this is a feature of enteric nervous system development has yet to be established. Although enteric neurons are known exhibit electrophysiological properties early in embryonic development, no connection has been drawn between this neuronal activity and the development of gastrointestinal (GI) motility patterns.</p><p><strong>Methods: </strong>We use ex vivo GI motility assays with newly developed unbiased computational analyses to identify GI motility patterns across mouse embryonic development.</p><p><strong>Key results: </strong>We find a previously unknown pattern of neurogenic contractions termed \"clustered ripples\" that arises spontaneously at embryonic day 16.5, an age earlier than any identified mature GI motility patterns. We further show that these contractions are driven by nicotinic cholinergic signaling.</p><p><strong>Conclusions & inferences: </strong>Clustered ripples are neurogenic contractile activity that arise from spontaneous ENS activity and precede all known forms of neurogenic GI motility. This earliest motility pattern requires nicotinic cholinergic signaling, which may inform pharmacology for enhancing GI motility in preterm infants.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141907222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Central mechanisms of emesis: A role for GDF15.","authors":"Tito Borner, Allison M Pataro, Bart C De Jonghe","doi":"10.1111/nmo.14886","DOIUrl":"https://doi.org/10.1111/nmo.14886","url":null,"abstract":"<p><strong>Background: </strong>Nausea and emesis are ubiquitously reported medical conditions and often present as treatment side effects along with polymorbidities contributing to detrimental life-threatening outcomes, such as poor nutrition, lower quality of life, and unfavorable patient prognosis. Growth differentiation factor 15 (GDF15) is a stress response cytokine secreted by a wide variety of cell types in response to a broad range of stressors. Circulating GDF15 levels are elevated in a range of medical conditions characterized by cachexia and malaise. In recent years, GDF15 has gained scientific and translational prominence with the discovery that its receptor, GDNF family receptor α-like (GFRAL), is expressed exclusively in the hindbrain. GFRAL activation may results in profound anorexia and body weight loss, effects which have attracted interest for the pharmacological treatment of obesity.</p><p><strong>Purpose: </strong>This review highlights compelling emerging evidence indicating that GDF15 causes anorexia through the induction of nausea, emesis, and food aversions, which encourage a perspective on GDF15 system function in physiology and behavior beyond homeostatic energy regulation contexts. This highlights the potential role of GDF15 in the central mediation of nausea and emesis following a variety of physiological, and pathophysiological conditions such as chemotherapy-induced emesis, hyperemesis gravidarum, and cyclic vomiting syndrome.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141897902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Psychogastroenterology of cyclic vomiting syndrome: A crucial need to build evidence.","authors":"Sally E Tarbell, Miranda A L van Tilburg","doi":"10.1111/nmo.14888","DOIUrl":"https://doi.org/10.1111/nmo.14888","url":null,"abstract":"<p><p>Cyclic vomiting is a disorder of gut brain interaction (DGBI) emphasizing the need for treatment of both the brain and the gut. Despite clinical success of psychological therapies for CVS, also called brain-gut treatments, an evidence-base is lacking and these treatments are available in few GI practices. This has resulted in an \"all guts no brain\" approach to CVS. The current paper is a call to action to develop more evidence and use of brain-gut therapies in CVS.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141889790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Charlotte Desprez, Anne-Marie Leroi, Guillaume Gourcerol
{"title":"Gastric and sacral electrical stimulation for motility disorders-A clinical perspective.","authors":"Charlotte Desprez, Anne-Marie Leroi, Guillaume Gourcerol","doi":"10.1111/nmo.14884","DOIUrl":"https://doi.org/10.1111/nmo.14884","url":null,"abstract":"<p><strong>Background: </strong>Electrical stimulation of the gut has been investigated in recent decades with a view to treating various gastro-intestinal motility disorders including, among others, gastric electrical stimulation to relieve nausea and vomiting associated with gastroparesis and sacral neuromodulation to treat fecal incontinence and/or constipation. Although their symptomatic efficacy has been ascertained by randomized controlled trials, their mechanisms of action are not fully understood.</p><p><strong>Purpose: </strong>This review summarizes the past year's literature on the mechanisms of action of gut electrical stimulation therapies, including their impact on the gut-brain axis.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141889789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nasopharyngeal airway assistance improves esophageal intubation rates of high-resolution esophageal manometry catheters.","authors":"Andrew Leopold, Angela Wu, Guofeng Xie","doi":"10.1111/nmo.14824","DOIUrl":"10.1111/nmo.14824","url":null,"abstract":"<p><strong>Background: </strong>High-resolution esophageal manometry (HREM) is the gold standard test for esophageal motility disorders. Nasopharyngeal airway-assisted insertion of the HREM catheter is a suggested salvage technique for failure from the inability to pass the catheter through the upper esophageal sphincter (UES). It has not been demonstrated that the nasopharyngeal airway improves procedural success rate.</p><p><strong>Methods: </strong>Patients undergoing HREM between March 2019 and March 2023 were evaluated. Chart review was conducted for patient factors and procedural success rates before and after use of nasopharyngeal airway. Patients from March 2019 to May 2021 did not have nasopharyngeal airway available and were compared to patients from May 2021 to March 2023 who had the nasopharyngeal airway available.</p><p><strong>Key results: </strong>In total, 523 HREM studies were conducted; 234 occurred prior to nasopharyngeal airway availability, and 289 occurred with nasopharyngeal airway availability. There was no difference in HREM catheter UES intubation rates between periods when a nasopharyngeal airway attempt was considered procedural failure (85% vs. 85%, p = 0.9). Nasopharyngeal airway use after UES intubation failure lead to improved UES intubation rates (94% vs. 85%, p < 0.01). Thirty-six patients that failed HREM catheter UES intubation had the procedure reattempted with a nasopharyngeal airway, 30 (83%) of which were successful. The nasopharyngeal airway assisted catheter UES intubation for failures attributed to nasal pain and hypersensitivity, gagging, coughing, and pharyngeal coiling.</p><p><strong>Conclusions & inferences: </strong>Utilization of the nasopharyngeal airway increased rates of UES intubation. When HREM catheter placement through the UES fails, placement of a nasopharyngeal airway can be trialed to overcome patient procedural intolerance.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11246217/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141075544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Agnieszka Gorecka-Mazur, Anna Krygowska-Wajs, Agata Furgala, Jiaqi Li, Benjamin Misselwitz, Wojciech Pietraszko, Borys Kwinta, Bahtiyar Yilmaz
{"title":"Associations between gut microbiota characteristics and non-motor symptoms following pharmacological and surgical treatments in Parkinson's disease patients.","authors":"Agnieszka Gorecka-Mazur, Anna Krygowska-Wajs, Agata Furgala, Jiaqi Li, Benjamin Misselwitz, Wojciech Pietraszko, Borys Kwinta, Bahtiyar Yilmaz","doi":"10.1111/nmo.14846","DOIUrl":"10.1111/nmo.14846","url":null,"abstract":"<p><strong>Background: </strong>The gut microbiota has been implicated in Parkinson's disease (PD), with alterations observed in microbial composition and reduced microbial species richness, which may influence gastrointestinal symptoms in PD patients. It remains to be determined whether the severity of gastrointestinal symptoms correlates with microbiota variations in PD patients treated pharmacologically or with subthalamic nucleus deep brain stimulation (STN-DBS) therapy. This study aims to explore how these treatments affect gut microbiota and gastrointestinal symptoms in PD, identifying specific microbial differences associated with each treatment modality.</p><p><strong>Methods: </strong>A total of 42 individuals diagnosed with PD, along with 38 age-matched household control participants, contributed stool samples for microbiota characterization. Differences in the gut microbiota across various groups of PD patients and their households were identified through comprehensive sequencing of the 16S rRNA gene amplicon sequencing.</p><p><strong>Key results: </strong>Differences in microbial communities were observed between PD patients and controls, as well as between PD patients receiving pharmacological treatment and those with STN-DBS. Pharmacologically treated advanced PD patients have higher gastrointestinal dysfunctions. Gut microbiota profile linked to STN-DBS and reduced levodopa consumption, characterized by its anti-inflammatory properties, might play a role in diminishing gastrointestinal dysfunction relative to only pharmacological treatments.</p><p><strong>Conclusions & inferences: </strong>Advanced PD patients on medication exhibit more gastrointestinal issues, despite relatively stable microbial diversity, indicating a complex interaction between gut microbiota, PD progression, and treatment effects. An imbalanced gut-brain axis, particularly due to reduced butyrate production, may lead to constipation by affecting the enteric nervous system, which emphasizes the need to incorporate gut microbiome insights into treatment strategies.</p>","PeriodicalId":19123,"journal":{"name":"Neurogastroenterology and Motility","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141317830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}