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Yan R, Andrew L, Marlow E, Kunaratnam K, Devine A, Dunican IC, Christophersen CT. Dietary Fibre Intervention for Gut Microbiota, Sleep, and Mental Health in Adults with Irritable Bowel Syndrome: A Scoping Review. Nutrients 2021; 13:2159. [PMID: 34201752 PMCID: PMC8308461 DOI: 10.3390/nu13072159] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 02/08/2023] Open
Abstract
Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder affecting 4-5% of the global population. This disorder is associated with gut microbiota, diet, sleep, and mental health. This scoping review therefore aims to map existing research that has administrated fibre-related dietary intervention to IBS individuals and reported outcomes on at least two of the three following themes: gut microbiota, sleep, and mental health. Five digital databases were searched to identify and select papers as per the inclusion and exclusion criteria. Five articles were included in the assessment, where none reported on all three themes or the combination of gut microbiota and sleep. Two studies identified alterations in gut microbiota and mental health with fibre supplementation. The other three studies reported on mental health and sleep outcomes using subjective questionnaires. IBS-related research lacks system biology-type studies targeting gut microbiota, sleep, and mental health in patients undergoing diet intervention. Further IBS research is required to explore how human gut microbiota functions (such as short-chain fatty acids) in sleep and mental health, following the implementation of dietary pattern alteration or component supplementation. Additionally, the application of objective sleep assessments is required in order to detect sleep change with more accuracy and less bias.
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Affiliation(s)
- Ran Yan
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Lesley Andrew
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Evania Marlow
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Kanita Kunaratnam
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Amanda Devine
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Ian C Dunican
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Claus T Christophersen
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- WA Human Microbiome Collaboration Centre, School of Molecular and Life Sciences, Curtin University, Kent Street, Perth 6102, Australia
- Integrative Metabolomics and Computational Biology Centre, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
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Exploring Symptom Severity, Illness Perceptions, Coping Styles, and Well-Being in Gastroparesis Patients Using the Common Sense Model. Dig Dis Sci 2018; 63:958-965. [PMID: 29468373 DOI: 10.1007/s10620-018-4975-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 02/10/2018] [Indexed: 12/13/2022]
Abstract
AIMS This study aimed to examine the relationships between gastroparesis symptom severity, illness perceptions, coping styles, quality of life (QoL), and psychological distress in patients with gastroparesis, guided by the common sense model. METHODS One hundred and seventy-nine adults with gastroparesis (165 females, 14 males; mean age 41.82 years) completed an online questionnaire. The Gastroparesis Cardinal Symptom Index was used to measure gastroparesis symptom severity, QoL was explored using the PAGI-QOL, illness perceptions were measured using the Brief Illness Perception Questionnaire, the Carver Brief COPE scale assessed coping styles, and psychological distress was investigated using the DASS21. RESULTS Structural equation modeling resulted in a final model with excellent fit. Gastroparesis symptom severity directly influenced illness perceptions (β = .52, p < .001) and QoL (β = .30, p < .001). Illness perceptions directly influenced maladaptive coping (β = - .64, p < .001), psychological distress (β = - .32, p < .001), and QoL (β = .30, p = .01). Maladaptive coping directly influenced psychological distress (β = .62, p < .001), which in turn had a direct influence on QoL (β = - .38, p < .001). CONCLUSIONS The final model showed that the influence of gastroparesis symptom severity on psychological distress was fully mediated by illness perceptions, while the influence on QoL was partially mediated by illness perceptions. The study provides guidance for the development of psychological interventions targeted toward improving mediating psychological factors.
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Su SF, Yang AM, Yang SB, Wang NB, Lu SS, Wang HH, Chen Q. Intracerebroventricular administration of neuronostatin delays gastric emptying and gastrointestinal transit in mice. Peptides 2012; 35:31-5. [PMID: 22465660 DOI: 10.1016/j.peptides.2012.03.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Revised: 03/14/2012] [Accepted: 03/14/2012] [Indexed: 11/26/2022]
Abstract
Neuronostatin is a 13-amino acid amidated peptide widely distributed in various organs including gastrointestinal tract. However, the effect of neuronostatin on gastrointestinal motility has not been well characterized. In the present work, effects of central administration of neuronostatin on gastric emptying and gastrointestinal transit were investigated. The results indicated that intracerebroventricular (i.c.v.) administration of neuronostatin (1, 5, 10 or 20nmol/mouse) delayed gastric emptying and gastrointestinal transit in a dose-related manner in mice. The effects were significantly reversed by melanocortin 3/4 receptor antagonist SHU9119 or classical opioid receptor antagonist naloxone, suggesting that the central melanocortin system and opioid system may be involved in the gastrointestinal effects elicited by i.c.v. administration of neuronostatin. In addition, we found that C-terminal amidation modification of neuronostatin is essential to exert its gastrointestinal effects. These results indicated that neuronostatin may play an important role in regulating gastrointestinal function.
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Affiliation(s)
- Shu-Fang Su
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou 730000, PR China
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Lv SY, Yang YJ, Qin YJ, Mo JR, Wang NB, Wang YJ, Chen Q. Central apelin-13 inhibits food intake via the CRF receptor in mice. Peptides 2012; 33:132-8. [PMID: 22108714 DOI: 10.1016/j.peptides.2011.11.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Revised: 11/07/2011] [Accepted: 11/07/2011] [Indexed: 11/24/2022]
Abstract
Apelin, the novel identified peptide, is the endogenous ligand for the APJ. Previous studies have reported the effect of apelin on food intake, however the action of acute central injected apelin on food intake in mice remains unknown. The present study was designed to investigate the mechanism as well as the effect of central apelin-13 on food intake in mice. During the dark period, the cumulative food intake was significantly decreased at 4h after the intracerebroventricular (i.c.v.) injection of 1 and 3μg/mouse apelin-13 and the period food intake was significantly reduced during 2-4h after treatment. In the fasted mice, the cumulative food intake was significantly decreased at 2 and 4h after injection of 3μg/mouse apelin-13. The cumulative water intake was significantly reduced by apelin-13 (3μg/mouse) at 4h after injection in freely feeding and fasted mice. However, during light period, apelin-13 had no influence on food and water intake in freely feeding mice. The APJ receptor antagonist apelin-13(F13A) (6μg/mouse) and the corticotrophin-releasing factor (CRF) receptor antagonist α-helical CRF(9-41) (3μg/mouse) could reverse the inhibitory effect on cumulative food intake/0-4h induced by apelin-13 (3μg/mouse) in freely feeding mice during the dark period, whereas the anorexic effect could not be antagonized by the arginie vasopressin (AVP) receptor antagonist deamino(CH(2))(5)Tyr(Me)AVP (0.5μg/mouse). Taken together, these results suggest that central apelin-13 inhibits food intake in mice and it seems that APJ receptor and CRF receptor, but not AVP receptor, might be involved in this process.
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Affiliation(s)
- Shuang-Yu Lv
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou 730000, PR China
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Lv SY, Yang YJ, Qin YJ, Xiong W, Chen Q. Effect of centrally administered apelin-13 on gastric emptying and gastrointestinal transit in mice. Peptides 2011; 32:978-82. [PMID: 21291936 DOI: 10.1016/j.peptides.2011.01.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 01/17/2011] [Accepted: 01/18/2011] [Indexed: 01/25/2023]
Abstract
Apelin, as the endogenous ligand for the APJ, regulates many biological functions, including blood pressure, neuroendocrine, drinking behavior, food intake and colonic motility. The present study was designed to investigate the effect of central apelin-13 on gastric emptying and gastrointestinal transit in mice. Intracerebroventricular (i.c.v.) injection of apelin-13 (3 and 10 μg/mouse) decreased gastric emptying rate by 10.9% and 17.1%. This effect was significantly antagonized by the APJ receptor antagonist apelin-13(F13A) and the opioid receptor antagonist naloxone, respectively. However, intraperitoneal (i.p.) injection of apelin-13 (10-100 μg/mouse) did not affect gastric emptying. Apelin-13 (0.3, 1 and 3 μg/mouse, i.c.v.) inhibited gastrointestinal transit by 16.8%, 23.4% and 19.2%. Apelin-13(F13A) and naloxone could also reverse this antitransit effect induced by apelin-13. Taken together, these results suggest that i.c.v. injected apelin-13 inhibits gastric emptying and gastrointestinal transit and it seems that APJ receptor and opioid receptor might be involved in these processes.
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Affiliation(s)
- Shuang-Yu Lv
- Institute of Biochemistry and Molecular Biology, School of Life Science, Lanzhou University, 222 Tian Shui South Road, Lanzhou 730000, PR China
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Yang YJ, Lv SY, Xiu MH, Xu N, Chen Q. Intracerebroventricular administration of apelin-13 inhibits distal colonic transit in mice. Peptides 2010; 31:2241-6. [PMID: 20849897 DOI: 10.1016/j.peptides.2010.09.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2010] [Revised: 09/04/2010] [Accepted: 09/04/2010] [Indexed: 01/17/2023]
Abstract
Apelin is a novel bioactive peptide as the endogenous ligand for the orphan G-protein-coupled receptor (GPCR), APJ, a receptor distributed in various tissues such as the hypothalamus and the gastrointestinal tract. Recent reports showed that apelin regulated many biological functions, including blood pressure, neuroendocrine, drinking behavior and food intake. However, the role of apelin in regulating gastrointestinal motility remains unknown. The present study aimed to investigate the actions of intracerebroventricularly administered apelin-13 on colonic transit as well as the actions of apelin-13 on the contraction of isolated distal colon in vitro. Intracerebroventricular (i.c.v.) injection of apelin-13 (0.3, 0.5, 1 and 3 μg/mouse) dose-dependently inhibited fecal pellet output and bead expulsion. This effect was significantly antagonized by the APJ receptor antagonist apelin-13(F13A), indicating an APJ receptor-mediated mechanism. Furthermore, naloxone could also reverse the inhibitory effect of apelin-13 on fecal pellet output and bead expulsion, suggesting the involvement of opioid receptors in the suppressive effect of apelin-13 on distal colon transit. However, apelin-13 (10⁻⁸-10⁻⁶ M) did not affect distal colonic contractions in vitro.
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Affiliation(s)
- Yan-Jie Yang
- Institute of Biochemistry and Molecular Biology, School of Life Science, Lanzhou University, 222 Tian Shui South Road, Lanzhou 730000, PR China
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Han RW, Chang M, Peng YL, Qiao LY, Yin XQ, Li W, Wang R. Central Neuropeptide S inhibits distal colonic transit through activation of central Neuropeptide S receptor in mice. Peptides 2009; 30:1313-7. [PMID: 19540430 DOI: 10.1016/j.peptides.2009.03.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2009] [Revised: 03/17/2009] [Accepted: 03/17/2009] [Indexed: 10/21/2022]
Abstract
Neuropeptide S (NPS), the endogenous ligand of NPS receptor (NPSR), regulates many biological functions, including arousal, anxiety, locomotion and food intake. NPSR mRNA is expressed in several regions of central autonomic network through which the brain controls visceromotor and other responses essential for survival. However, the role of NPS/NPSR system in regulating gastrointestinal motor is still unknown. Here, we studied the effects of NPS on distal colonic transit in mice. Intracerebroventricular (i.c.v.) injection of NPS (1-1000 pmol) inhibited fecal pellet output and bead expulsion in a dose-dependent manner. However, intraperitoneal injection of NPS (1000 and 10000 pmol) did not affect fecal pellet output and bead expulsion. In vitro, NPS (0.1-10 microM) also did not modulate distal colonic contractions. Furthermore, i.c.v. co-administration of [D-Val(5)]NPS, a pure and potent NPSR antagonist, dose-dependently antagonized the inhibitory effects of NPS on fecal pellet output and bead expulsion. In conclusion, our results firstly indicate that central NPS inhibits distal colonic transit through the activation of central NPSR, which implicate that NPS/NPSR system might be a new target to treat function disorder of distal colon.
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Affiliation(s)
- Ren-Wen Han
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, PR China
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Miftahof R, Akhmadeev NR. Neurochemical bases of visceral nociception: mathematical model. J Theor Biol 2007; 249:343-60. [PMID: 17826799 DOI: 10.1016/j.jtbi.2007.07.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2007] [Revised: 07/29/2007] [Accepted: 07/30/2007] [Indexed: 12/22/2022]
Abstract
A mathematical model of visceral perception was constructed, comprising primary sensory, motor, intestinofugal and principal neurons, interstitial cells of Cajal and smooth muscle elements that are arranged in a functional circuit through chemical synapses. The mathematical description of constructive elements was based on detailed morphological, anatomical, electrophysiological and neuropharmacological characteristics of cells and chemical processes of electrochemical coupling. Emphasis was given to signal transduction mechanisms that involved multiple neurotransmitters and receptor polymodality. The role of co-transmission by acetylcholine (ACh), serotonin (5-HT), noradrenalin (NA), N-methyl-d-aspartate (NMDA) and alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and their corresponding receptors-muscarinic and nicotinic type ACh receptors, beta-adrenoceptors, 5-HT(3/4) type serotonergic receptors, NMDA and AMPA receptors in pathogenesis of nociception was studied numerically. Results of computer simulations reproduced patterns of electrical activity of neurons and mechanical responses of the smooth muscle similar to those observed in in vivo and in vitro experiments when ACh, 5-HT, NA, NMDA and AMPA were acting either alone or co-jointly. The results provide neurochemical bases for explanation of pathophysiological mechanisms of visceral nociception, which cannot be elucidated by existing experimental methods. Care should be taken though when extrapolating the numerical results onto the actual system because of limiting assumptions of the model.
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MESH Headings
- Animals
- Computer Simulation
- Intestines/innervation
- Intestines/physiopathology
- Mechanotransduction, Cellular
- Models, Neurological
- Neurons/physiology
- Neurons, Afferent/physiology
- Neurotransmitter Agents/physiology
- Pain/physiopathology
- Receptors, AMPA/physiology
- Receptors, Cholinergic/physiology
- Receptors, N-Methyl-D-Aspartate/physiology
- Receptors, Serotonin, 5-HT3/physiology
- Receptors, Serotonin, 5-HT4/physiology
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Affiliation(s)
- R Miftahof
- I-BIO Program, Pohang University of Science and Technology, San 31 Hyoja-dong, Nam-gu, Pohang 790-784, Republic of Korea.
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Baker DE. Rationale for using serotonergic agents to treat irritable bowel syndrome. Am J Health Syst Pharm 2005; 62:700-11; quiz 712-3. [PMID: 15790796 DOI: 10.1093/ajhp/62.7.700] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
PURPOSE The role of serotonin in gastrointestinal (GI)-tract functioning, the pharmacologic rationale for using serotonergic agents in the treatment of irritable bowel syndrome (IBS), and clinical experience with novel serotonergic agents are described. SUMMARY IBS is a common multisymptom disorder that is associated with a high socioeconomic burden. The goal of treatment is to provide rapid and sustained global relief of the multiple symptoms of IBS with a single, effective, well-tolerated agent. Traditional treatment options target single symptoms, and many patients are dissatisfied with the level of relief achieved and adverse effects. Research has revealed that serotonin is involved in three major actions in the gut: (1) mediating intestinal motility, (2) mediating intestinal secretion in the GI tract, and (3) modulating perception in the bowels. Serotonin is also a vital link in the brain-gut axis. Alterations in key elements of serotonin signaling have been demonstrated in patients with IBS. Tegaserod, a selective serotonin type 4 (5-HT(4))-receptor partial agonist, is indicated for use in women with IBS whose primary bowel symptom is constipation. Alosetron, a 5-HT(3)-receptor antagonist, is indicated for use in women with severe diarrhea-predominant IBS in whom traditional therapies have failed. The clinical usefulness of several other serotonergic agents for IBS is being investigated. CONCLUSION The use of serotonergic agents in patients with IBS is based on the critical role that serotonin plays in the maintenance of normal gut function and brain-gut communication. Pharmacologic therapies targeting specific serotonin receptors represent an important step in the management of IBS.
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Affiliation(s)
- Danial E Baker
- College of Pharmacy, Washington State University, P.O. Box 1495, Spokane, WA 99210-1495, USA.
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