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Zou Z, Fan W, Liu H, Liu Q, He H, Huang F. The roles of 5-HT in orofacial pain. Oral Dis 2024; 30:3838-3849. [PMID: 38622872 DOI: 10.1111/odi.14960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/10/2024] [Accepted: 04/02/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVES Acute and chronic orofacial pain are very common and remain a vexing health problem that has a negative effect on the quality of life. Serotonin (5-HydroxyTryptamine, 5-HT) is a kind of monoamine neurotransmitter that is involved in many physiological and pathological processes. However, its role in orofacial pain remains inconclusive. Therefore, this review aims to summarize the recent advances in understanding the effect exerted by 5-HT on the modulation of orofacial pain. SUBJECTS AND METHODS An extensive search was conducted on PubMed and Web of Science for pertinent studies focusing on the effects of 5-HT on the modulation of orofacial pain. RESULTS In this review, we concisely review how 5-HT mediates orofacial pain, how 5-HT is regulated and how we can translate these findings into clinical applications for the prevention and/or treatment of orofacial pain. CONCLUSIONS 5-HT plays a key role in the modulation of orofacial pain, implying that 5-HT modulators may serve as effective treatment for orofacial pain. However, further research on the precise mechanisms underlying the modulation of orofacial pain is still warranted.
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Affiliation(s)
- Zhishan Zou
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Wenguo Fan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Haotian Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Qing Liu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | - Hongwen He
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Fang Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
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Hajati A, Brondani M, Angerstig L, Klein V, Liljeblad L, Al-Moraissi EA, Louca Jounger S, Brondani B, Christidis N. Chocolate intake and muscle pain sensation: A randomized experimental study. PLoS One 2023; 18:e0284769. [PMID: 37224109 DOI: 10.1371/journal.pone.0284769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 03/31/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Chocolate, as a cocoa-derived product rich in flavanols, has been used for medical and anti-inflammatory purposes. Therefore, the aim of this study was to investigate if the ingestion of different percentages of cocoa products affects the experimentally induced pain caused by intramuscular hypertonic saline injections in the masseter muscle of healthy men and women. METHODS This experimental randomized, double-blind, and controlled study included 15 young, healthy, and pain-free men and 15 age-matched women and involved three visits with at least a 1-week washout. Pain was induced twice at each visit with intramuscular injections of 0.2 mL hypertonic saline (5%), before and after intake of one of the different chocolate types: white (30% cocoa content), milk (34% cocoa content), and dark (70% cocoa content). Pain duration, pain area, peak pain, and pressure pain threshold (PPT) were assessed every fifth minute after each injection, up until 30 min after the initial injection. Descriptive and inferential statistics were performed using IBM® SPSS (Version 27); significance level was set to p<0.05. RESULTS This study showed that intake of chocolate, no matter the type, reduced the induced pain intensity significantly more than no intake of chocolate (p<0.05, Tukey test). There were no differences between the chocolate types. Further, men showed a significantly greater pain reduction than women after intake of white chocolate (p<0.05, Tukey test). No other differences between pain characteristics or sexes were revealed. CONCLUSION Intake of chocolate before a painful stimulus had a pain-reducing effect no matter the cocoa concentration. The results indicate that perhaps it is not the cocoa concentration (e.g., flavanols) alone that explains the positive effect on pain, but likely a combination of preference and taste-experience. Another possible explanation could be the composition of the chocolate, i.e. the concentration of the other ingredients such as sugar, soy, and vanilla. ClinicalTrials.gov Identifier: NCT05378984.
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Affiliation(s)
- Alexandra Hajati
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, and Scandinavian Center for Orofacial Neurosciences, Huddinge, Sweden
| | - Mario Brondani
- Division of Dental Public Health, Department of Oral Health Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, Canada
| | - Lina Angerstig
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, and Scandinavian Center for Orofacial Neurosciences, Huddinge, Sweden
| | - Victoria Klein
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, and Scandinavian Center for Orofacial Neurosciences, Huddinge, Sweden
| | - Linda Liljeblad
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, and Scandinavian Center for Orofacial Neurosciences, Huddinge, Sweden
| | - Essam Ahmed Al-Moraissi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Thamar University, Thamar, Yemen
| | - Sofia Louca Jounger
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, and Scandinavian Center for Orofacial Neurosciences, Huddinge, Sweden
| | - Bruna Brondani
- Division of Dental Public Health, Department of Oral Health Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, Canada
| | - Nikolaos Christidis
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, and Scandinavian Center for Orofacial Neurosciences, Huddinge, Sweden
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Shao H, Gan Q, Chen Z, Zhu S, Zhu Y. Analysis of the Underlying Mechanism of the Jiu Wei Zhen Xin Formula for Treating Generalized Anxiety Disorder Based on Network Pharmacology of Traditional Chinese Medicine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:7761852. [PMID: 35677384 PMCID: PMC9168090 DOI: 10.1155/2022/7761852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/23/2022] [Indexed: 11/17/2022]
Abstract
Currently, there are many effective pharmacological treatments for generalized anxiety disorder (GAD), formulated herbal granule is also an alternative way. Our research intends to construct a pharmacological network on genetic targets and pathways between Jiu Wei Zhen Xin Formula (JWZXF) and GAD. Through the TCMSP database, we collected the active ingredients of JWZXF and potential targets of the active ingredients. The GAD-related proteins collected from GeneCards database and DisGeNET database were combined. Component-target protein networks were constructed and visualized using Cytoscape 3.8.2 software to comprehensively clarify the relationships between ingredients, components, and targets. The intersection targets were imported into the STRING database, and the protein-protein interaction (PPI) network was constructed. We constructed and analyzed the visualized "drug-target-disease" network. Gene Ontology (GO) enrichment together with Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis were conducted on the common target through R language. Forty-one effective components and 106 potential targets of JWZXF were found. There were top ten hub genes and multiple important signaling pathways involved in the treatment of GAD with the JWZXF. This study expounded the pharmacological actions and molecular mechanisms of the JWZXF in treating GAD from a holistic perspective. The potential pharmacological effects of the JWZXF are closely related to regulation because not only does it comprehensively analyze the possible mechanism of JWZXF treatment of GAD but it can also facilitate further in-depth research and provide a theoretical basis for the clinical expansion of its application.
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Affiliation(s)
- Heng Shao
- Department of Geriatrics, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Quan Gan
- Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Zhuangfei Chen
- Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Shasha Zhu
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
- Department of Clinical Psychology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Yanqing Zhu
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
- Department of Clinical Psychology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
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Louca Jounger S, Christidis N, Hedenberg-Magnusson B, List T, Svensson P, Schalling M, Ernberg M. Polymorphisms in the HTR2A and HTR3A Genes Contribute to Pain in TMD Myalgia. FRONTIERS IN ORAL HEALTH 2022; 2:647924. [PMID: 35047998 PMCID: PMC8757775 DOI: 10.3389/froh.2021.647924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/09/2021] [Indexed: 12/12/2022] Open
Abstract
Background: The aim of this study was to investigate if single nucleotide polymorphisms (SNPs) related to monoaminergic neurotransmission, in particular the serotonergic pathway, contribute to pain perception in patients with temporomandibular disorder (TMD) myalgia and if there is a correlation to jaw function as well as psychosocial factors such as stress, anxiety and depression. Materials and Methods: One hundred and seventeen individuals with TMD myalgia were included. A venous blood or saliva sample was taken for genetic analyses and genotyped regarding HTR2A (rs9316233) HTR3A (rs1062613), HTR3B (rs1176744), SERT (5-HTTLPR) and COMT (rs4680). A clinical examination according to Diagnostic Criteria for TMD (DC/TMD) was performed and axis II data (psychosocial factors) were compared between participants with different genotypes for each gene using Kruskall–Wallis test. The characteristic pain intensity (CPI) was tested for correlations to scores for the Perceived Stress Scale, Generalized Anxiety Disorder, and Patient Health Questionnaires using Spearman's rank correlation test with Bonferroni correction for multiple testing. To further explore data factor analysis was performed to identify latent factors associated to the outcome variables. Results: Participants carrying at least one copy of the rare allele of the HTR2A (rs9316233) and HTR3A (rs1062613) had higher CPI compared with the participants with the homozygous common genotype (P = 0.042 and P = 0.024, respectively). Correlation analyses showed several significant positive correlations between CPI on one hand, and self-reported psychosocial distress and jaw function on the other hand for several genotypes that mostly were weak to moderate. The factor analysis identified two latent variables. One was positively correlated to the HTR3B gene, jaw function and self-reported parafunctions, and the other was positively correlated to psychological distress and negatively correlated to SERT. Conclusion: Taken together, the polymorphism rs1062613 in the HTR3A gene contributes to pain intensity in TMD myalgia. This together with positive interactions between pain variables and psychological factors in genotypes strengthens that pain and psychological distress are related. Further research is needed to explore this as well as the influence of gene-to-gene interactions on pain and psychological distress.
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Affiliation(s)
- Sofia Louca Jounger
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Scandinavian Center for Orofacial Neurosciences (SCON), Huddinge, Sweden
| | - Nikolaos Christidis
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Scandinavian Center for Orofacial Neurosciences (SCON), Huddinge, Sweden
| | - Britt Hedenberg-Magnusson
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Scandinavian Center for Orofacial Neurosciences (SCON), Huddinge, Sweden.,Department of Orofacial Pain and Jaw Function, Folktandvården Eastmaninstitutet, Stockholm, Sweden
| | - Thomas List
- Scandinavian Center for Orofacial Neurosciences (SCON), Huddinge, Sweden.,Department of Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Peter Svensson
- Scandinavian Center for Orofacial Neurosciences (SCON), Huddinge, Sweden.,Department of Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden.,Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, University of Aarhus, Aarhus, Denmark
| | - Martin Schalling
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Malin Ernberg
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Scandinavian Center for Orofacial Neurosciences (SCON), Huddinge, Sweden
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Irving H, Turek I, Kettle C, Yaakob N. Tapping into 5-HT 3 Receptors to Modify Metabolic and Immune Responses. Int J Mol Sci 2021; 22:ijms222111910. [PMID: 34769340 PMCID: PMC8584345 DOI: 10.3390/ijms222111910] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 02/07/2023] Open
Abstract
5-hydroxytryptamine type 3 (5-HT3) receptors are ligand gated ion channels, which clearly distinguish their mode of action from the other G-protein coupled 5-HT or serotonin receptors. 5-HT3 receptors are well established targets for emesis and gastrointestinal mobility and are used as adjunct targets in treating schizophrenia. However, the distribution of these receptors is wider than the nervous system and there is potential that these additional sites can be targeted to modulate inflammatory and/or metabolic conditions. Recent progress in structural biology and pharmacology of 5-HT3 receptors have provided profound insights into mechanisms of their action. These advances, combined with insights into clinical relevance of mutations in genes encoding 5-HT3 subunits and increasing understanding of their implications in patient's predisposition to diseases and response to the treatment, open new avenues for personalized precision medicine. In this review, we recap on the current status of 5-HT3 receptor-based therapies using a biochemical and physiological perspective. We assess the potential for targeting 5-HT3 receptors in conditions involving metabolic or inflammatory disorders based on recent findings, underscoring the challenges and limitations of this approach.
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Affiliation(s)
- Helen Irving
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC 3550, Australia; (I.T.); (C.K.)
- Correspondence:
| | - Ilona Turek
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC 3550, Australia; (I.T.); (C.K.)
| | - Christine Kettle
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC 3550, Australia; (I.T.); (C.K.)
| | - Nor Yaakob
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
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Ignaszak-Kaus N, Duleba AJ, Mrozikiewicz A, Kurzawińska G, Różycka A, Hauke J, Gaca M, Pawelczyk L, Jagodziński PP, Jędrzejczak P. Relationship of Postoperative Pain and PONV after Minimally Invasive Surgery with the Serotonin Concentrations and Receptors' Gene Polymorphisms. J Pers Med 2021; 11:jpm11090833. [PMID: 34575611 PMCID: PMC8467521 DOI: 10.3390/jpm11090833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/15/2021] [Accepted: 08/23/2021] [Indexed: 01/11/2023] Open
Abstract
(1) Background: there is a steady increase in the number of procedures performed via minimally invasive surgery, which have many benefits, but post-operative nausea and vomiting (PONV) and significant pain are still a common problem (2) Methods: 300 infertile women (18–40 years old) undergoing minimal invasive surgery. Interventions: laparoscopy and hysteroscopy performing, evaluation of postoperative symptoms, serotonin concentrations assessment, identify genetic polymorphisms. (3) Results: serotonin concentrations were significantly lower among women who required opioids (p = 0.006). The presence of the GG genotype in the rs6318 polymorphism of the 5HTR2C gene had a protective effect on PONV (OR = 0.503; C.I. = [0.300–0.841]; p = 0.008), when the GG variant of the rs11214763 polymorphism of the 5HTR3B gene, when the risk of PONV was 1.65-fold higher (OR = 1.652; C.I. = [1.003–2.723]; p = 0.048). Pain intensity was significantly higher among women with GG genotype of the rs6296 polymorphism of the 5HTR1B gene (OR = 1.660; C.I. = [1.052–2.622]; p = 0.029).; (4) Conclusions: the evaluation of serotonin concentration predicts requirement for opioid pain relief medication. The polymorphisms of the serotonin receptors affect the intensity of postoperative complaints.
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Affiliation(s)
- Natalia Ignaszak-Kaus
- Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland; (A.M.); (L.P.); (P.J.)
- Correspondence: ; Tel.: +48-663360375
| | - Antoni J. Duleba
- Department of Reproductive Medicine, University of California, La Jolla, San Diego, CA 92093, USA;
| | - Aleksandra Mrozikiewicz
- Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland; (A.M.); (L.P.); (P.J.)
| | - Grażyna Kurzawińska
- Division of Perinatology and Women’s Diseases, Poznan University of Medical Sciences, 60-535 Poznan, Poland;
- Laboratory of Molecular Biology, Division of Perinatology and Women’s Diseases, Poznan University of Medical Sciences, 61-701 Poznan, Poland
| | - Agata Różycka
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, 60-781 Poznan, Poland; (A.R.); (P.P.J.)
| | - Jan Hauke
- Faculty of Human Geography and Planning, Adam Mickiewicz University, 61-712 Poznan, Poland;
| | - Michał Gaca
- Clinics of Anaesthesiology in Obstetrics and Gynecology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland;
| | - Leszek Pawelczyk
- Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland; (A.M.); (L.P.); (P.J.)
| | - Paweł Piotr Jagodziński
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Sciences, 60-781 Poznan, Poland; (A.R.); (P.P.J.)
| | - Piotr Jędrzejczak
- Department of Infertility and Reproductive Endocrinology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland; (A.M.); (L.P.); (P.J.)
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Chen Y, Chu F, Lin J, Su Z, Liao M, Li T, Li Y, Johnson N, Zheng H, Ding X. The mechanisms of action of WeiChang'An Pill (WCAP) treat diarrhoea-predominant irritable bowel syndrome (IBS-D) using network pharmacology approach and in vivo studies. JOURNAL OF ETHNOPHARMACOLOGY 2021; 275:114119. [PMID: 33862102 DOI: 10.1016/j.jep.2021.114119] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE WeiChang'An Pill (WCAP) is used in Traditional Chinese Medicine (TCM) to clinically treat diarrhoea-predominant irritable bowel syndrome (IBS-D); however, the underlying pharmacological mechanisms are unclear to date. AIM OF THE STUDY To explore the mechanism underlying the therapeutic action of WCAP in IBS-D using a network pharmacology approach and in vivo experiments. MATERIALS AND METHODS The active compounds of WCAP were selected from the TCM Systems Pharmacology Database and TCM Integrated Database, and the potential targets were identified using the Swiss Target Prediction and Similarity Ensemble Approach (SEA) databases. The targets related to IBS-D were mined from the Therapeutic Target Database (TTD), National Center for Biotechnology Information Search database (NCBI), DrugBank database, and DisGeNET database. The intersecting protein-protein interactions (PPIs) of the drug-disease crossover genes were analysed, and the central PPI network was constructed using the String database, version 11.0, and Cytoscape version 3.7.2. Following Gene Ontology and Kyoto Encyclopaedia of Genes and Genomes pathway analyses, the gene-pathway network was constructed for identifying the key target genes and pathways. Based on the results and existing evidence, it was selected the cyclic adenosine monophosphate (cAMP) signalling pathway for further validation using in vivo experiments. RESULTS A total of 872 targets were identified from the 77 active compounds in WCAP, which shared 78 targets that were predicted to be related to IBS-D. Twenty-one core targets were identified from the PPI network, which was constructed from the common targets. The results of enrichment analysis revealed that HRT2B, ADRA1A, ADRA1D, and CHRM2 could be the key targets of WCAP in IBS-D, and 11 signalling pathways, including the neuroactive ligand-receptor interaction, calcium signalling, and cAMP signalling pathways, were identified as crucial for the therapeutic activity of WCAP in IBS-D. We also identified the possibility of several interactions and crosstalk between the different pathways. Subsequent molecular biology experiments revealed that the expression levels of cAMP, phospho-(Ser/Thr) protein kinase A substrates (p-PKA), 5-hydroxytryptamine, and proteins in the cAMP signalling pathway, including G protein-coupled receptor (GPCR), adenylyl cyclase 5 (AC5), and cAMP-response element binding protein (CREB), were significantly upregulated in rat models of IBS-D following treatment with WCAP (P < 0.05). However, a reverse trend was observed in the expression of nuclear factor kappa-B (NF-κB) (P < 0.05), which could be attributed to the low-grade inflammation that occurs in IBS-D. CONCLUSION We demonstrated that WCAP may alleviate the symptoms of diarrhoea and visceral sensitivity in IBS-D by regulating the cAMP signalling pathway.
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Affiliation(s)
- Yan Chen
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
| | - Fuhao Chu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China; Institute of Regulatory Science for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Jie Lin
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Zeqi Su
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Mengting Liao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
| | - Tao Li
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
| | - Yuan Li
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
| | - Nadia Johnson
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
| | - Haocheng Zheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Xia Ding
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China; School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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Louca Jounger S, Svedenlöf J, Elenius R, Källkrans C, Scheid E, Ernberg M, Christidis N. Sterile water; a novel and promising human experimental craniofacial muscle pain model. J Oral Rehabil 2021; 48:654-665. [PMID: 33449396 DOI: 10.1111/joor.13148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/21/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The aim of this study was to investigate if intramuscular injection of sterile water can be used as a human experimental pain model that resembles clinical craniofacial muscle pain and to analyse if the effects differ between sexes. METHODS This randomised, double-blind, placebo-controlled cross-over study included 30 healthy age-matched women and men (23.6 ± 2.4 years). At three sessions, with at least one week of washout in between, 0.2 mL of either sterile water (test-substance), hypertonic saline (58.5 mg/mL; active control) or isotonic saline (0.9 mg/mL; passive control) was randomly injected into the right masseter muscle. Pain intensity (VAS) was continuously assessed during 5 min whereafter pain duration (s) and pain area (au) were calculated; pressure pain thresholds (PPT;kPa) were recorded every 5 minutes during 30 minutes. RESULTS Sterile water evoked pain of similar intensity (74.5 ± 49.9) as hypertonic saline (74.0 ± 50.5); whereas, isotonic saline evoked low-intensity pain (11.4 ± 23.4). The pain induced by sterile water and hypertonic saline had higher intensity (P < 0.001), longer duration (P < 0.001) and larger pain area (P < 0.001) than isotonic saline. There were no significant differences in any pain variable between sterile water and hypertonic saline. The PPT did not change significantly after any substance, except for in women 5 minutes after sterile water injection (P < 0.002). Pain duration was longer in the men for all substances (P < 0.006), while the pain area was larger in women after injection of hypertonic saline (P < 0.003). CONCLUSION These results indicate that pain evoked by sterile water resembles clinical muscle pain and may offer a novel and simpler alternative to hypertonic saline injections.
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Affiliation(s)
- Sofia Louca Jounger
- Division of Oral Diagnostics and Rehabilitatiowen, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Scandinavian Center for Orofacial Neuroscience (SCON), Huddinge, Sweden
| | - Johanna Svedenlöf
- Division of Oral Diagnostics and Rehabilitatiowen, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Reija Elenius
- Division of Oral Diagnostics and Rehabilitatiowen, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Christoffer Källkrans
- Division of Oral Diagnostics and Rehabilitatiowen, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Emil Scheid
- Division of Oral Diagnostics and Rehabilitatiowen, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Malin Ernberg
- Division of Oral Diagnostics and Rehabilitatiowen, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Scandinavian Center for Orofacial Neuroscience (SCON), Huddinge, Sweden
| | - Nikolaos Christidis
- Division of Oral Diagnostics and Rehabilitatiowen, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Scandinavian Center for Orofacial Neuroscience (SCON), Huddinge, Sweden
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Ledermann K, Hasler G, Jenewein J, Sprott H, Schnyder U, Martin-Soelch C. 5'UTR polymorphism in the serotonergic receptor HTR3A gene is differently associated with striatal Dopamine D2/D3 receptor availability in the right putamen in Fibromyalgia patients and healthy controls-Preliminary evidence. Synapse 2020; 74:e22147. [PMID: 31868947 DOI: 10.1002/syn.22147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/12/2019] [Accepted: 12/17/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Extensive literature has investigated the role of serotonin (5-HT) in the control of the central dopamine (DA) systems, and their dysfunction in the pathological conditions. 5-HT stimulates the local DA release in striatal regions via activation of various receptors including serotonin receptor-3 (5-HT3). Several studies have related polymorphisms (SNPs) in the serotonin receptor-3 (HTR3) genes to be associated with the pain modulation and endogenous pain suppression. A few studies suggested a functional role of 5'UTR SNP in the serotonergic receptor HTR3A gene (rs1062613) in the development of the chronic pain and Fibromyalgia syndrome (FMS) in particular. Here, we investigated the effect of a 5'UTR SNP in the serotonergic receptor HTR3A gene (rs1062613) on striatal dopamine D2/D3 receptor (DRD2) availability and reward-associated DA release in response to unpredictable monetary rewards in 23 women with FMS and 17 age-matched healthy female controls. Furthermore, we aimed to examine if SNP rs1062613 is associated with thermal pain and pain tolerance thresholds. METHODS We used PET and [11 C]raclopride to assess the DRD2 availability. In the same participants we used the [11 C]raclopride PET bolus-plus-infusion method to measure the [11 C]raclopride receptor binding potential (ΔBP) between an unpredictable reward condition and a sensorimotor control condition. DRD2 availability and ΔBP were assessed in MRI-based striatal regions of interest. Thermal pain and pain tolerance thresholds were assessed outside the scanner. RESULTS The frequency of SNP rs1062613 genotype differed significantly between groups, indicating that CC homozygotes were more frequent in FMS patients (82.6%) than in healthy controls (41.3%). Our results showed a significant main effect of SNP rs1062613 on [11 C]raclopride binding potential in the right caudate nucleus indicating a higher DRD2 receptor availability for CC-genotype of this SNP. Furthermore, we found a significant group × SNP interaction on [11 C]raclopride binding potential in the right putamen, indicating a higher DRD2 availability in T-carriers compared to CC genotype of SNP rs1062613 in FMS patients, whereas this effect was not present in healthy controls. However, we did not find an influence of SNP rs1062613 on reward-related DA release. In addition, there was no association between SNP rs1062613 and pain threshold or pain tolerance threshold in our data. CONCLUSION These preliminary results indicate that SNP rs1062613 in the serotonergic receptor HTR3A gene possibly modulates the DRD2 receptor availability.
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Affiliation(s)
- Katharina Ledermann
- Department of Psychology, Unit of Clinical and Health Psychology, University Fribourg, Fribourg, Switzerland.,Department of Consultation-Liaison Psychiatry and Psychosomatics, University Hospital, University of Zurich, Zurich, Switzerland
| | - Gregor Hasler
- Department of Psychology, Unit of Clinical and Health Psychology, University Fribourg, Fribourg, Switzerland
| | - Josef Jenewein
- Department of Consultation-Liaison Psychiatry and Psychosomatics, University Hospital, University of Zurich, Zurich, Switzerland.,Clinic Zugersee, Center for Psychiatry and Psychotherapy, Oberwil-Zug, Switzerland
| | - Haiko Sprott
- University of Zurich and Arztpraxis Hottingen, Zurich, Switzerland
| | | | - Chantal Martin-Soelch
- Department of Psychology, Unit of Clinical and Health Psychology, University Fribourg, Fribourg, Switzerland
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10
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Knisely MR, Conley YP, Smoot B, Paul SM, Levine JD, Miaskowski C. Associations Between Catecholaminergic and Serotonergic Genes and Persistent Arm Pain Severity Following Breast Cancer Surgery. THE JOURNAL OF PAIN 2019; 20:1100-1111. [PMID: 30904518 PMCID: PMC6736756 DOI: 10.1016/j.jpain.2019.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/17/2019] [Accepted: 03/19/2019] [Indexed: 01/09/2023]
Abstract
Persistent arm pain is a common problem after breast cancer surgery. Little is known about genetic factors that contribute to this type of postsurgical pain. Study purpose was to explore associations between persistent arm pain phenotypes and genetic polymorphisms among 15 genes involved in catecholaminergic and serotonergic neurotransmission. Women (n = 398) rated the presence and intensity of arm pain monthly for 6 months after breast cancer surgery. Three distinct latent classes of patients were identified (ie, no arm pain [41.6%], mild arm pain (23.6%), and moderate arm pain (34.8%). Logistic regression analyses were used to evaluate for differences between genotype or haplotype frequencies and the persistent arm pain classes. Compared with the no arm pain class, 3 single nucleotide polymorphisms and 1 haplotype, in 4 genes, were associated with membership in the mild arm pain class: COMT rs4633, HTR2A haplotype B02 (composed of rs1923886 and rs7330636), HTR3A rs1985242, and TH rs2070762. Compared with the no arm pain class, 4 single nucleotide polymorphisms in 3 genes were associated with membership in the moderate arm pain class: COMT rs165656, HTR2A rs2770298 and rs9534511, and HTR3A rs1985242. Findings suggest that variations in catecholaminergic and serotonergic genes play a role in the development of persistent arm pain. PERSPECTIVE: Limited information is available on genetic factors that contribute to persistent arm pain after breast cancer surgery. Genetic polymorphisms in genes involved in catecholaminergic and serotonergic neurotransmission were associated with 2 persistent arm pain phenotypes. Findings may be used to identify patients are higher risk for this common pain condition.
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Affiliation(s)
| | - Yvette P Conley
- School of Nursing, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Betty Smoot
- Schools of Medicine, University of California, San Francisco, California
| | - Steven M Paul
- Schools of Nursing, University of California, San Francisco, California
| | - Jon D Levine
- Schools of Medicine, University of California, San Francisco, California
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11
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Knisely MR, Conley YP, Kober KM, Smoot B, Paul SM, Levine JD, Miaskowski C. Associations Between Catecholaminergic and Serotonergic Genes and Persistent Breast Pain Phenotypes After Breast Cancer Surgery. THE JOURNAL OF PAIN 2018; 19:1130-1146. [DOI: 10.1016/j.jpain.2018.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 03/04/2018] [Accepted: 04/12/2018] [Indexed: 12/20/2022]
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12
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Uttam S, Wong C, Amorim IS, Jafarnejad SM, Tansley SN, Yang J, Prager-Khoutorsky M, Mogil JS, Gkogkas CG, Khoutorsky A. Translational profiling of dorsal root ganglia and spinal cord in a mouse model of neuropathic pain. NEUROBIOLOGY OF PAIN 2018; 4:35-44. [PMID: 30906902 PMCID: PMC6428075 DOI: 10.1016/j.ynpai.2018.04.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Translational landscape in DRG and spinal cord in SNI assay of neuropathic pain was established. ERK is a central hub of both transcriptionally and translationally controlled genes. Changes in translation efficiency and mRNA levels occur in the opposite direction for multiple mRNAs.
Acute pain serves as a protective mechanism, guiding the organism away from actual or potential tissue injury. In contrast, chronic pain is a debilitating condition without any obvious physiological function. The transition to, and the maintenance of chronic pain require new gene expression to support biochemical and structural changes within the pain pathway. The regulation of gene expression at the level of mRNA translation has emerged as an important step in the control of protein expression in the cell. Recent studies show that signaling pathways upstream of mRNA translation, such as mTORC1 and ERK, are upregulated in chronic pain conditions, and their inhibition effectively alleviates pain in several animal models. Despite this progress, mRNAs whose translation is altered in chronic pain conditions remain largely unknown. Here, we performed genome-wide translational profiling of dorsal root ganglion (DRG) and spinal cord dorsal horn tissues in a mouse model of neuropathic pain, spared nerve injury (SNI), using the ribosome profiling technique. We identified distinct subsets of mRNAs that are differentially translated in response to nerve injury in both tissues. We discovered key converging upstream regulators and pathways linked to mRNA translational control and neuropathic pain. Our data are crucial for the understanding of mechanisms by which mRNA translation promotes persistent hypersensitivity after nerve injury.
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Affiliation(s)
- Sonali Uttam
- Department of Anesthesia, McGill University, Montreal, QC H3A 0G1, Canada
| | - Calvin Wong
- Department of Anesthesia, McGill University, Montreal, QC H3A 0G1, Canada
| | - Inês S Amorim
- Patrick Wild Centre and Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Seyed Mehdi Jafarnejad
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada
| | - Shannon N Tansley
- Department of Anesthesia, McGill University, Montreal, QC H3A 0G1, Canada.,Department of Psychology, McGill University, Montreal QC H3A 1B1, Canada
| | - Jieyi Yang
- Department of Anesthesia, McGill University, Montreal, QC H3A 0G1, Canada
| | | | - Jeffrey S Mogil
- Department of Anesthesia, McGill University, Montreal, QC H3A 0G1, Canada.,Department of Psychology, McGill University, Montreal QC H3A 1B1, Canada.,Alan Edwards Centre for Research on Pain, McGill University, Montreal QC H3A 0G1, Canada
| | - Christos G Gkogkas
- Patrick Wild Centre and Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Arkady Khoutorsky
- Department of Anesthesia, McGill University, Montreal, QC H3A 0G1, Canada.,Alan Edwards Centre for Research on Pain, McGill University, Montreal QC H3A 0G1, Canada
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13
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Irwin JJ, Gaskins G, Sterling T, Mysinger MM, Keiser MJ. Predicted Biological Activity of Purchasable Chemical Space. J Chem Inf Model 2017; 58:148-164. [PMID: 29193970 PMCID: PMC5780839 DOI: 10.1021/acs.jcim.7b00316] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
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Whereas
400 million distinct compounds are now purchasable within
the span of a few weeks, the biological activities of most are unknown.
To facilitate access to new chemistry for biology, we have combined
the Similarity Ensemble Approach (SEA) with the maximum Tanimoto similarity
to the nearest bioactive to predict activity for every commercially
available molecule in ZINC. This method, which we label SEA+TC, outperforms
both SEA and a naïve-Bayesian classifier via predictive performance
on a 5-fold cross-validation of ChEMBL’s bioactivity data set
(version 21). Using this method, predictions for over 40% of compounds
(>160 million) have either high significance (pSEA ≥ 40),
high
similarity (ECFP4MaxTc ≥ 0.4), or both, for one or more of
1382 targets well described by ligands in the literature. Using a
further 1347 less-well-described targets, we predict activities for
an additional 11 million compounds. To gauge whether these predictions
are sensible, we investigate 75 predictions for 50 drugs lacking a
binding affinity annotation in ChEMBL. The 535 million predictions
for over 171 million compounds at 2629 targets are linked to purchasing
information and evidence to support each prediction and are freely
available via https://zinc15.docking.org and https://files.docking.org.
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Affiliation(s)
- John J Irwin
- Department of Pharmaceutical Chemistry, University of California, San Francisco , Byers Hall, 1700 4th Street, San Francisco, California 94158-2330, United States
| | - Garrett Gaskins
- Department of Pharmaceutical Chemistry, University of California, San Francisco , Byers Hall, 1700 4th Street, San Francisco, California 94158-2330, United States.,Institute for Neurodegenerative Diseases, University of California, San Francisco , 675 Nelson Rising Lane, San Francisco, California 94158, United States.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco , Byers Hall, 1700 4th Street, San Francisco, California 94158, United States.,Institute for Computational Health Sciences, University of California, San Francisco , 550 16th Street, San Francisco, California 94158, United States
| | - Teague Sterling
- Department of Pharmaceutical Chemistry, University of California, San Francisco , Byers Hall, 1700 4th Street, San Francisco, California 94158-2330, United States
| | - Michael M Mysinger
- Department of Pharmaceutical Chemistry, University of California, San Francisco , Byers Hall, 1700 4th Street, San Francisco, California 94158-2330, United States
| | - Michael J Keiser
- Department of Pharmaceutical Chemistry, University of California, San Francisco , Byers Hall, 1700 4th Street, San Francisco, California 94158-2330, United States.,Institute for Neurodegenerative Diseases, University of California, San Francisco , 675 Nelson Rising Lane, San Francisco, California 94158, United States.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco , Byers Hall, 1700 4th Street, San Francisco, California 94158, United States.,Institute for Computational Health Sciences, University of California, San Francisco , 550 16th Street, San Francisco, California 94158, United States
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