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Barton JR, Londregan AK, Alexander TD, Entezari AA, Covarrubias M, Waldman SA. Enteroendocrine cell regulation of the gut-brain axis. Front Neurosci 2023; 17:1272955. [PMID: 38027512 PMCID: PMC10662325 DOI: 10.3389/fnins.2023.1272955] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Enteroendocrine cells (EECs) are an essential interface between the gut and brain that communicate signals about nutrients, pain, and even information from our microbiome. EECs are hormone-producing cells expressed throughout the gastrointestinal epithelium and have been leveraged by pharmaceuticals like semaglutide (Ozempic, Wegovy), terzepatide (Mounjaro), and retatrutide (Phase 2) for diabetes and weight control, and linaclotide (Linzess) to treat irritable bowel syndrome (IBS) and visceral pain. This review focuses on role of intestinal EECs to communicate signals from the gut lumen to the brain. Canonically, EECs communicate information about the intestinal environment through a variety of hormones, dividing EECs into separate classes based on the hormone each cell type secretes. Recent studies have revealed more diverse hormone profiles and communication modalities for EECs including direct synaptic communication with peripheral neurons. EECs known as neuropod cells rapidly relay signals from gut to brain via a direct communication with vagal and primary sensory neurons. Further, this review discusses the complex information processing machinery within EECs, including receptors that transduce intraluminal signals and the ion channel complement that govern initiation and propagation of these signals. Deeper understanding of EEC physiology is necessary to safely treat devastating and pervasive conditions like irritable bowel syndrome and obesity.
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Affiliation(s)
- Joshua R. Barton
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Annie K. Londregan
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Tyler D. Alexander
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, United States
| | - Ariana A. Entezari
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Manuel Covarrubias
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, United States
| | - Scott A. Waldman
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, United States
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LenglarT L, Caula C, Moulding T, Lyles A, Wohrer D, Titomanlio L. Brain to Belly: Abdominal Variants of Migraine and Functional Abdominal Pain Disorders Associated With Migraine. J Neurogastroenterol Motil 2021; 27:482-494. [PMID: 34642268 PMCID: PMC8521460 DOI: 10.5056/jnm20290] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/22/2021] [Accepted: 04/08/2021] [Indexed: 12/13/2022] Open
Abstract
Migraine is one of the most frequent causes of primary headache and 9% of children suffer from migraines. Most children will continue to experience migraine attacks as adults, therefore it is imperative that we have a thorough understanding of this major health issue. This article considers the so-called abdominal variants of migraine, which are more commonly seen in children rather than adults: abdominal migraine, cyclic vomiting syndrome, and infantile colic. Other functional abdominal pain disorders such as irritable bowel syndrome and functional dyspepsia have also been linked to migraine in clinical studies. The common pathophysiological root of these diseases seems to be the gut-brain axis mechanism. Abdominal variants of migraine are considered pediatric precursors of migraine whereas the functional abdominal pain disorders related to migraine seem to share a pathophysiological root with no temporarily link as for today. In this review we aim to describe the epidemiological background, the current pathophysiological theories and the relationship of each disease to migraine. This review is the first to compile abdominal variants of migraine and functional abdominal pain disorders associated with migraine and we endeavor to elucidate the broad spectrum of migraine-related episodes in children.
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Affiliation(s)
- Léa LenglarT
- Department of Pediatric Emergency Care, APHP - Hopital Robert Debré, Paris, France
| | - Caroline Caula
- Department of Pediatric Emergency Care, APHP - Hopital Robert Debré, Paris, France
| | - Thomas Moulding
- Department of Specialty and Integrated Medicine, The Leeds Teaching Hospitals, NHS Trust, Leeds, UK
| | - Annabel Lyles
- Department of Oncology, The Leeds Teaching Hospitals, NHS Trust, Leeds, UK
| | - Delphine Wohrer
- Department of Pediatric Emergency Care, APHP - Hopital Robert Debré, Paris, France
| | - Luigi Titomanlio
- Department of Pediatric Emergency Care, APHP - Hopital Robert Debré, Paris, France.,Pediatric Migraine and Neurovascular Diseases Unit, APHP - Hopital Robert Debré, Paris, France.,Paris University, INSERM U1141, DHU Protect, Paris, France
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Shulman RJ, Devaraj S, Heitkemper M. Activation of the Innate Immune System in Children With Irritable Bowel Syndrome Evidenced by Increased Fecal Human β-Defensin-2. Clin Gastroenterol Hepatol 2021; 19:2121-2127. [PMID: 32961343 PMCID: PMC8041153 DOI: 10.1016/j.cgh.2020.09.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The role of the innate immune system in functional gastrointestinal pain disorders is unclear. We investigated the role of β-defensin-2 and gut permeability in childhood irritable bowel syndrome (IBS) and functional abdominal pain (FAP) symptom generation. METHODS Fecal β-defensin-2 (and in a subset, gut permeability) was measured in children with IBS (n = 116), FAP (n = 33), and healthy control (HC) children (n = 72). IBS and FAP patients were recruited from tertiary and primary care, and HCs were recruited from primary care. RESULTS β-defensin-2 concentration was greater in children with IBS (P = .003) and FAP (P = .03) than in HCs. β-defensin-2 was greater in girls with IBS than female HCs (P = .007) and in girls with IBS vs boys with IBS (P = .036). There was no difference by sex in the FAP and HC groups. For the entire cohort, β-defensin-2 correlated with multiple pain symptoms. In the IBS group, β-defensin-2 correlated with pain interference (P = .014). No correlation with pain was found in the FAP or HC group. Gut permeability was greater in the IBS vs the FAP and HC groups (P = .038). For the entire cohort, permeability correlated with the number of pain episodes (P = .041) and interfering pain episodes (P = .049). For the entire cohort there was a correlation between β-defensin-2 and permeability (P = .003), with borderline correlation in the IBS group (P = .086). For the cohort and IBS and HC groups, the number of bowel movements was modestly inversely related to fecal β-defensin-2 concentrations. CONCLUSIONS Increased fecal β-defensin-2 concentration in children with IBS suggests activation of the innate immune system in some, which, along with increased gut permeability, appears related to abdominal pain symptoms. Sex is an important variable in interpreting β-defensin-2 concentration in children with IBS.
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Affiliation(s)
- Robert J Shulman
- Department of Pediatrics; Children's Nutrition Research Center; Texas Children's Hospital; Baylor College of Medicine, Houston, Texas.
| | - Sridevi Devaraj
- Texas Children's Hospital; Baylor College of Medicine, Houston, Texas; Department of Pathology and Immunology
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Ward TM, Skubic M, Rantz M, Vorderstrasse A. Human-centered approaches that integrate sensor technology across the lifespan: Opportunities and challenges. Nurs Outlook 2020; 68:734-744. [PMID: 32631796 PMCID: PMC8104265 DOI: 10.1016/j.outlook.2020.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 01/22/2023]
Abstract
Children, parents, older adults, and caregivers routinely use sensor technology as a source of health information and health monitoring. The purpose of this paper is to describe three exemplars of research that used a human-centered approach to engage participants in the development, design, and usability of interventions that integrate technology to promote health. The exemplars are based on current research studies that integrate sensor technology into pediatric, adult, and older adult populations living with a chronic health condition. Lessons learned and considerations for future studies are discussed. Nurses have successfully implemented interventions that use technology to improve health and detect, prevent, and manage diseases in children, families, individuals and communities. Nurses are key stakeholders to inform clinically relevant health monitoring that can support timely and personalized intervention and recommendations.
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Affiliation(s)
- Teresa M Ward
- School of Nursing, University of Washington, Seattle, WA.
| | - Marjorie Skubic
- Electrical Engineering and Computer Science, University of Missouri, Columbia, MO
| | - Marilyn Rantz
- Sinclair School of Nursing, University of Missouri, Columbia, MO
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Hollier JM, van Tilburg MA, Liu Y, Czyzewski DI, Self MM, Weidler EM, Heitkemper M, Shulman RJ. Multiple psychological factors predict abdominal pain severity in children with irritable bowel syndrome. Neurogastroenterol Motil 2019; 31:e13509. [PMID: 30549152 PMCID: PMC6651721 DOI: 10.1111/nmo.13509] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/03/2018] [Accepted: 10/16/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Anxiety and depression are implicated as contributors to abdominal pain in pediatric irritable bowel syndrome (IBS) but is unclear if this pain is associated with other psychological factors. The study objective was to test if the impact of anxiety or depression on IBS symptom severity is mediated by somatization and/or pain catastrophizing. METHODS We utilized baseline data from local pediatric IBS clinical studies. Through mediation analysis, we assessed whether somatization or pain catastrophizing mediated (either independently or combined) the separate relationships of anxiety or depression with IBS abdominal pain severity. KEY RESULTS We analyzed 261 participants. All psychological factors were positively correlated with one another and IBS abdominal pain severity. The association of anxiety with IBS abdominal pain was mediated by both somatization and pain catastrophizing in individual analyses (each mediated standardized coefficient [β] 0.11, CI 0.05-0.18) and in multiple analysis (mediated standardized β 0.18, CI 0.09-0.27). The association of depression with IBS abdominal pain was also mediated by somatization (mediated standardized β 0.08, CI0.02-0.14) and pain catastrophizing (mediated standardized β 0.06, CI 0.01-0.11) in individual analyses and in multiple analysis (mediated standardized β 0.19, CI 0.04-0.19). CONCLUSIONS AND INFERENCES Somatization and pain catastrophizing mediate the relationships between anxiety/depression and IBS abdominal pain severity. These findings suggest that somatization and pain catastrophizing may be better treatment targets than anxiety and depression. Clinicians should assess these psychological factors in pediatric IBS patients and refer for intervention to improve outcomes.
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Affiliation(s)
- John M. Hollier
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America,Texas Children’s Hospital, Houston, Texas, United States of America
| | - Miranda A.L. van Tilburg
- Department of Clinical Research, College of Pharmacy & Health Sciences, Campbell University, Buies Creek, North Carolina, United States of America,Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America,School of Social Work, University of Washington, Seattle, Washington, United States of America
| | - Yan Liu
- Department of Medicine, Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Danita I. Czyzewski
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America,Texas Children’s Hospital, Houston, Texas, United States of America
| | - Mariella M. Self
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America,Texas Children’s Hospital, Houston, Texas, United States of America
| | - Erica M. Weidler
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America,United States Department of Agriculture/Agricultural Research Service, Children’s Nutrition Research Center, Houston, Texas, United States of America
| | - Margaret Heitkemper
- Department of Biobehavioral Nursing and Health Systems, University of Washington, Seattle, Washington
| | - Robert J. Shulman
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America,Texas Children’s Hospital, Houston, Texas, United States of America,United States Department of Agriculture/Agricultural Research Service, Children’s Nutrition Research Center, Houston, Texas, United States of America
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