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Itateyama E, Chiba S, Sakata T, Yoshimatsu H. Hypothalamic Neuronal Histamine in Genetically Obese Animals: Its Implication of Leptin Action in the Brain. Exp Biol Med (Maywood) 2016; 228:1132-7. [PMID: 14610251 DOI: 10.1177/153537020322801006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Leptin regulates feeding behavior and energy metabolism by affecting hypothalamic neuromodulators. The present study was designed to examine hypothalamic neuronal histamine, a recently identified mediator of leptin signaling in the brain, in genetic obese animals. Concentrations of hypothalamic histamine and tele-methylhistamine (t-MH), a major histamine metabolite, were significantly lower in obese (ob/ob) and diabetic (db/db) mice, and Zucker fatty (fa/fa) rats, leptin-deficient and leptin-receptor defective animals, respectively, relative to lean littermates (P < 0.05 for each). A bolus infusion of leptin (1.0 microg) into the lateral ventricle (ilvt) significantly elevated the turnover rate of hypothalamic neuronal histamine, as assessed by pargyline-induced accumulation of t-MH, in ob/ob mice compared with phosphate-buffered saline (PBS) infusions (P < 0.05). However, this same treatment did not affect hypothalamic histamine turnover in db/db mice. In agouti yellow (A(y)/a) mice, animals defective in pro-opiomelanocortin (POMC) signaling, normal levels of histamine, and t-MH were seen in the hypothalamus at 4 weeks of age when obesity had not yet developed. These amine levels in A(y)/a mice showed no change until 16 weeks of age, although the mice were remarkably obese by this time. Infusions of corticotropin releasing hormone (CRH), one of neuropeptide related to leptin signaling, into the third ventricle (i3vt) increased histamine turnover in the hypothalamus of Wistar King A rats (P < 0.05 versus PBS infusion). Infusion of neuropeptide Y (NPY) or alpha-melanocyte stimulating hormone (MSH), a POMC-derived peptide failed to increase histamine turnover. These results indicate that lowered activity of hypothalamic neuronal histamine in ob/ob and db/db mice, and fa/fa rats may be due to insufficiency of leptin action in the brains of these animals. These results also suggest that disruption of POMC signaling in A(y)/a mice may not impact on neuronal histamine. Moreover, CRH but neither POMC-derived peptide nor NPY may act as a signal to neuronal histamine downstream of the leptin signaling pathway.
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Affiliation(s)
- Emi Itateyama
- Department of Internal Medicine I, School of Medicine, Oita Medical University, Hasama, Oita 879-5593, Japan
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Thr105Ile (rs11558538) polymorphism in the histamine-1-methyl-transferase (HNMT) gene and risk for restless legs syndrome. J Neural Transm (Vienna) 2016; 124:285-291. [DOI: 10.1007/s00702-016-1645-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 11/03/2016] [Indexed: 12/11/2022]
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Midzyanovskaya IS, Birioukova LM, Shatskova AB, van Luijtelaar G, Tuomisto LM. H1 histamine receptor densities are increased in brain regions of rats with genetically generalized epilepsies. Epilepsy Res 2016; 127:135-140. [DOI: 10.1016/j.eplepsyres.2016.08.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 08/11/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
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The effects of unilateral lesion of the tuberomammillary nucleus E2 sub-region on nocturnal feeding and related behaviors in mice. Life Sci 2016; 162:70-6. [PMID: 27515503 DOI: 10.1016/j.lfs.2016.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 07/27/2016] [Accepted: 08/06/2016] [Indexed: 11/22/2022]
Abstract
AIMS Bilateral lesions of the mesencephalic trigeminal sensory nucleus (Me5), which receives histaminergic neurons from the tuberomammillary nucleus (TMN), alter nocturnal feeding and related behaviors in mice, concomitant with a decrease in orexin mRNA level in the perifornical area (PFA) during the dark phase. Therefore, we investigated the neuronal input to the TMN from the Me5, as well as the effects of TMN lesions on the circadian profiles of feeding and related behaviors. MAIN METHODS We examined the presence of neurons projecting from the Me5 to the TMN by direct injection of a retrograde tracer, Fluorogold, into the TMN E2 sub-region (TMN-E2). We also assessed feeding, drinking, and locomotion for 24h using an automated feeding behavior measurement apparatus, and analyzed the hypothalamic orexin mRNA levels in both TMN-lesion and sham-operated mice. KEY FINDINGS The presence of neuronal projections from the Me5 to the TMN-E2 was confirmed. A decrease in food and water intake and locomotion during the latter half of the dark phase was delayed in TMN-lesion but not sham-operation mice. Further, orexin mRNA expression levels were higher in both the PFA and lateral hypothalamus area (LHA) in TMN-E2-lesion mice relative to control mice, during the early half of the dark phase compared with the light phase. SIGNIFICANCE Our results suggest that histaminergic neurons in the TMN-E2 receive signals from the Me5 that modulate a switch from dark to light phase feeding and related behaviors, which in turn may be regulated by orexin neurons in the PFA and/or LHA.
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Jurič DM, Kržan M, Lipnik-Stangelj M. Histamine and astrocyte function. Pharmacol Res 2016; 111:774-783. [DOI: 10.1016/j.phrs.2016.07.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 07/11/2016] [Accepted: 07/24/2016] [Indexed: 12/31/2022]
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Nieto-Alamilla G, Márquez-Gómez R, García-Gálvez AM, Morales-Figueroa GE, Arias-Montaño JA. The Histamine H3 Receptor: Structure, Pharmacology, and Function. Mol Pharmacol 2016; 90:649-673. [PMID: 27563055 DOI: 10.1124/mol.116.104752] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 08/24/2016] [Indexed: 01/06/2023] Open
Abstract
Among the four G protein-coupled receptors (H1-H4) identified as mediators of the biologic effects of histamine, the H3 receptor (H3R) is distinguished for its almost exclusive expression in the nervous system and the large variety of isoforms generated by alternative splicing of the corresponding mRNA. Additionally, it exhibits dual functionality as autoreceptor and heteroreceptor, and this enables H3Rs to modulate the histaminergic and other neurotransmitter systems. The cloning of the H3R cDNA in 1999 by Lovenberg et al. allowed for detailed studies of its molecular aspects. In this work, we review the characteristics of the H3R, namely, its structure, constitutive activity, isoforms, signal transduction pathways, regional differences in expression and localization, selective agonists, antagonists and inverse agonists, dimerization with other neurotransmitter receptors, and the main presynaptic and postsynaptic effects resulting from its activation. The H3R has attracted interest as a potential drug target for the treatment of several important neurologic and psychiatric disorders, such as Alzheimer and Parkinson diseases, Gilles de la Tourette syndrome, and addiction.
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Affiliation(s)
- Gustavo Nieto-Alamilla
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - Ricardo Márquez-Gómez
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - Ana-Maricela García-Gálvez
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - Guadalupe-Elide Morales-Figueroa
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
| | - José-Antonio Arias-Montaño
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados (Cinvestav-IPN), Zacatenco, Ciudad de México, México
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Stein T, Souza-Silva E, Mascarin L, Eto C, Fin FE, Tonussi CR. Histaminergic Pharmacology Modulates the Analgesic and Antiedematogenic Effects of Spinally Injected Morphine. Anesth Analg 2016; 123:238-43. [DOI: 10.1213/ane.0000000000001326] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Jiménez-Jiménez FJ, Alonso-Navarro H, García-Martín E, Agúndez JA. Thr105Ile (rs11558538) polymorphism in the histamine N-methyltransferase (HNMT) gene and risk for Parkinson disease: A PRISMA-compliant systematic review and meta-analysis. Medicine (Baltimore) 2016; 95:e4147. [PMID: 27399132 PMCID: PMC5058861 DOI: 10.1097/md.0000000000004147] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/14/2016] [Accepted: 06/13/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/AIMS Several neuropathological, biochemical, and pharmacological data suggested a possible role of histamine in the etiopathogenesis of Parkinson disease (PD). The single nucleotide polymorphism (SNP) rs11558538 in the histamine N-methyltransferase (HNMT) gene has been associated with the risk of developing PD by several studies but not by some others. We carried out a systematic review that included all the studies published on PD risk related to the rs11558538 SNP, and we conducted a meta-analysis following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. METHODS We used several databases to perform the systematic review, the software Meta-DiSc 1.1.1 to perform the meta-analysis of the eligible studies, and the Q-statistic to test heterogeneity between studies. RESULTS The meta-analysis included 4 eligible case-control association studies for the HNMT rs11558538 SNP and the risk for PD (2108 patients, 2158 controls). The frequency of the minor allele positivity showed a statistically significant association with a decreased risk for PD, both in the total series and in Caucasians. Although homozygosity for the minor allele did not reach statistical significance, the test for trend indicates the occurrence of a gene-dose effect. Global diagnostic odds ratios (95% confidence intervals) for rs11558538T were 0.61 (0.46-0.81) for the total group, and 0.63 (0.45-0.88) for Caucasian patients. CONCLUSION The present meta-analysis confirms published evidence suggesting that the HNMT rs11558538 minor allele is related to a reduced risk of developing PD.
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Affiliation(s)
- Félix Javier Jiménez-Jiménez
- Section of Neurology, Hospital Universitario del Sureste, Arganda del Rey
- Department of Medicine-Neurology, Hospital “Príncipe de Asturias,” Universidad de Alcalá, Alcalá de Henares, Madrid
| | | | | | - José A.G. Agúndez
- Department of Pharmacology, University of Extremadura, Cáceres, Spain
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Rocha SM, Saraiva T, Cristóvão AC, Ferreira R, Santos T, Esteves M, Saraiva C, Je G, Cortes L, Valero J, Alves G, Klibanov A, Kim YS, Bernardino L. Histamine induces microglia activation and dopaminergic neuronal toxicity via H1 receptor activation. J Neuroinflammation 2016; 13:137. [PMID: 27260166 PMCID: PMC4893260 DOI: 10.1186/s12974-016-0600-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 05/26/2016] [Indexed: 12/13/2022] Open
Abstract
Background Histamine is an amine widely known as a peripheral inflammatory mediator and as a neurotransmitter in the central nervous system. Recently, it has been suggested that histamine acts as an innate modulator of microglial activity. Herein, we aimed to disclose the role of histamine in microglial phagocytic activity and reactive oxygen species (ROS) production and to explore the consequences of histamine-induced neuroinflammation in dopaminergic (DA) neuronal survival. Methods The effect of histamine on phagocytosis was assessed both in vitro by using a murine N9 microglial cell line and primary microglial cell cultures and in vivo. Cells were exposed to IgG-opsonized latex beads or phosphatidylserine (PS) liposomes to evaluate Fcγ or PS receptor-mediated microglial phagocytosis, respectively. ROS production and protein levels of NADPH oxidases and Rac1 were assessed as a measure of oxidative stress. DA neuronal survival was evaluated in vivo by counting the number of tyrosine hydroxylase-positive neurons in the substantia nigra (SN) of mice. Results We found that histamine triggers microglial phagocytosis via histamine receptor 1 (H1R) activation and ROS production via H1R and H4R activation. By using apocynin, a broad NADPH oxidase (Nox) inhibitor, and Nox1 knockout mice, we found that the Nox1 signaling pathway is involved in both phagocytosis and ROS production induced by histamine in vitro. Interestingly, both apocynin and annexin V (used as inhibitor of PS-induced phagocytosis) fully abolished the DA neurotoxicity induced by the injection of histamine in the SN of adult mice in vivo. Blockade of H1R protected against histamine-induced Nox1 expression and death of DA neurons in vivo. Conclusions Overall, our results highlight the relevance of histamine in the modulation of microglial activity that ultimately may interfere with neuronal survival in the context of Parkinson’s disease (PD) and, eventually, other neurodegenerative diseases which are accompanied by microglia-induced neuroinflammation. Importantly, our results also open promising new perspectives for the therapeutic use of H1R antagonists to treat or ameliorate neurodegenerative processes. Electronic supplementary material The online version of this article (doi:10.1186/s12974-016-0600-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sandra M Rocha
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Tatiana Saraiva
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Ana C Cristóvão
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Raquel Ferreira
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Tiago Santos
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Marta Esteves
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Cláudia Saraiva
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Goun Je
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Luísa Cortes
- Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Jorge Valero
- Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Gilberto Alves
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Alexander Klibanov
- Division of Cardiovascular Medicine and Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - Yoon-Seong Kim
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Liliana Bernardino
- Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal. .,Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal.
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Ciproxifan, an H3 receptor antagonist, improves short-term recognition memory impaired by isoflurane anesthesia. J Anesth 2016; 30:684-90. [DOI: 10.1007/s00540-016-2189-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 05/05/2016] [Indexed: 02/04/2023]
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Kim YS, Kim YB, Kim WB, Lee SW, Oh SB, Han HC, Lee CJ, Colwell CS, Kim YI. Histamine 1 receptor-Gβγ-cAMP/PKA-CFTR pathway mediates the histamine-induced resetting of the suprachiasmatic circadian clock. Mol Brain 2016; 9:49. [PMID: 27153809 PMCID: PMC4858891 DOI: 10.1186/s13041-016-0227-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 04/15/2016] [Indexed: 11/29/2022] Open
Abstract
Background Recent evidence indicates that histamine, acting on histamine 1 receptor (H1R), resets the circadian clock in the mouse suprachiasmatic nucleus (SCN) by increasing intracellular Ca2+ concentration ([Ca2+]i) through the activation of CaV1.3 L-type Ca2+ channels and Ca2+-induced Ca2+ release from ryanodine receptor-mediated internal stores. Results In the current study, we explored the underlying mechanisms with various techniques including Ca2+- and Cl−-imaging and extracellular single-unit recording. Our hypothesis was that histamine causes Cl− efflux through cystic fibrosis transmembrane conductance regulator (CFTR) to elicit membrane depolarization needed for the activation of CaV1.3 Ca2+ channels in SCN neurons. We found that histamine elicited Cl− efflux and increased [Ca2+]i in dissociated mouse SCN cells. Both of these events were suppressed by bumetanide [Na+-K+-2Cl− cotransporter isotype 1 (NKCC1) blocker], CFTRinh-172 (CFTR inhibitor), gallein (Gβγ protein inhibitor) and H89 [protein kinase A (PKA) inhibitor]. By itself, H1R activation with 2-pyridylethylamine increased the level of cAMP in the SCN and this regulation was prevented by gallein. Finally, histamine-evoked phase shifts of the circadian neural activity rhythm in the mouse SCN slice were blocked by bumetanide, CFTRinh-172, gallein or H89 and were not observed in NKCC1 or CFTR KO mice. Conclusions Taken together, these results indicate that histamine recruits the H1R-Gβγ-cAMP/PKA pathway in the SCN neurons to activate CaV1.3 channels through CFTR-mediated Cl− efflux and ultimately to phase-shift the circadian clock. This pathway and NKCC1 may well be potential targets for agents designed to treat problems resulting from the disturbance of the circadian system.
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Affiliation(s)
- Yoon Sik Kim
- Department of Physiology and Neuroscience Research Institute, Korea University College of Medicine, 126-1 Anam-dong 5-ga, Seoul, 136-705, Republic of Korea.,Department of Psychiatry & Biobehavioral Sciences, University of California-Los Angeles, 760 Westwood Plaza, Los Angeles, CA, 90024, USA
| | - Young-Beom Kim
- Department of Physiology and Neuroscience Research Institute, Korea University College of Medicine, 126-1 Anam-dong 5-ga, Seoul, 136-705, Republic of Korea
| | - Woong Bin Kim
- Department of Physiology and Neuroscience Research Institute, Korea University College of Medicine, 126-1 Anam-dong 5-ga, Seoul, 136-705, Republic of Korea
| | - Seung Won Lee
- Department of Physiology and Neuroscience Research Institute, Korea University College of Medicine, 126-1 Anam-dong 5-ga, Seoul, 136-705, Republic of Korea
| | - Seog Bae Oh
- Pain Cognitive Function Research Center, Dental Research Institute and Department of Neurobiology and Physiology, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Hee-Chul Han
- Department of Physiology and Neuroscience Research Institute, Korea University College of Medicine, 126-1 Anam-dong 5-ga, Seoul, 136-705, Republic of Korea
| | - C Justin Lee
- Center for Neuroscience and Functional Connectomics, Korea Institute of Science and Technology, Seoul, 136-791, Republic of Korea.
| | - Christopher S Colwell
- Department of Psychiatry & Biobehavioral Sciences, University of California-Los Angeles, 760 Westwood Plaza, Los Angeles, CA, 90024, USA
| | - Yang In Kim
- Department of Physiology and Neuroscience Research Institute, Korea University College of Medicine, 126-1 Anam-dong 5-ga, Seoul, 136-705, Republic of Korea.
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Sun N, Tischfield JA, King RA, Heiman GA. Functional Evaluations of Genes Disrupted in Patients with Tourette's Disorder. Front Psychiatry 2016; 7:11. [PMID: 26903887 PMCID: PMC4746269 DOI: 10.3389/fpsyt.2016.00011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 01/18/2016] [Indexed: 01/04/2023] Open
Abstract
Tourette's disorder (TD) is a highly heritable neurodevelopmental disorder with complex genetic architecture and unclear neuropathology. Disruptions of particular genes have been identified in subsets of TD patients. However, none of the findings have been replicated, probably due to the complex and heterogeneous genetic architecture of TD that involves both common and rare variants. To understand the etiology of TD, functional analyses are required to characterize the molecular and cellular consequences caused by mutations in candidate genes. Such molecular and cellular alterations may converge into common biological pathways underlying the heterogeneous genetic etiology of TD patients. Herein, we review specific genes implicated in TD etiology, discuss the functions of these genes in the mammalian central nervous system and the corresponding behavioral anomalies exhibited in animal models, and importantly, review functional analyses that can be performed to evaluate the role(s) that the genetic disruptions might play in TD. Specifically, the functional assays include novel cell culture systems, genome editing techniques, bioinformatics approaches, transcriptomic analyses, and genetically modified animal models applied or developed to study genes associated with TD or with other neurodevelopmental and neuropsychiatric disorders. By describing methods used to study diseases with genetic architecture similar to TD, we hope to develop a systematic framework for investigating the etiology of TD and related disorders.
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Affiliation(s)
- Nawei Sun
- Department of Genetics, Rutgers University, Piscataway, NJ, USA; Human Genetics Institute of New Jersey, Piscataway, NJ, USA
| | - Jay A Tischfield
- Department of Genetics, Rutgers University, Piscataway, NJ, USA; Human Genetics Institute of New Jersey, Piscataway, NJ, USA
| | - Robert A King
- Child Study Center, Yale School of Medicine , New Haven, CT , USA
| | - Gary A Heiman
- Department of Genetics, Rutgers University, Piscataway, NJ, USA; Human Genetics Institute of New Jersey, Piscataway, NJ, USA
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Yoshikawa T, Yanai K. Histamine Clearance Through Polyspecific Transporters in the Brain. Handb Exp Pharmacol 2016; 241:173-187. [PMID: 27679412 DOI: 10.1007/164_2016_13] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Histamine plays an important role as a neurotransmitter in diverse brain functions, and clearance of histamine is essential to avoid excessive histaminergic neuronal activity. Histamine N-methyltransferase, which is an enzyme in the central nervous system that metabolizes histamine, is localized to the cytosol. This suggests that a histamine transport process is essential to inactivate histamine. Previous reports have shown the importance of astrocytes for histamine transport, although neuronal histamine transport could not be ruled out. High-affinity and selective histamine transporters have not yet been discovered, although it has been reported that the following three polyspecific transporters transport histamine: organic cation transporter (OCT) 2, OCT3, and plasma membrane monoamine transporter (PMAT). The K m values of human OCT2, OCT3, and PMAT are 0.54, 0.64, and 4.4 mM, respectively. The three transporters are expressed in the brain, and their regional distribution is different. Recent studies revealed the contribution of OCT3 and PMAT to histamine transport by primary human astrocytes. Several investigations using mice supported the importance of OCT3 for histamine clearance in the brain. However, further studies are required to elucidate the detailed mechanism of histamine transport in the brain.
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Affiliation(s)
- Takeo Yoshikawa
- Department of Pharmacology, Tohoku University, Graduate School of Medicine, 2-1, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.
| | - Kazuhiko Yanai
- Department of Pharmacology, Tohoku University, Graduate School of Medicine, 2-1, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
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Rozov SV, Porkka-Heiskanen T, Panula P. On the Role of Histamine Receptors in the Regulation of Circadian Rhythms. PLoS One 2015; 10:e0144694. [PMID: 26660098 PMCID: PMC4675540 DOI: 10.1371/journal.pone.0144694] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/23/2015] [Indexed: 12/26/2022] Open
Abstract
Several lines of evidence suggest a regulatory role of histamine in circadian rhythms, but little is known about signaling pathways that would be involved in such a putative role. The aim of this study was to examine whether histamine mediates its effects on the circadian system through Hrh1 or Hrh3 receptors. We assessed both diurnal and free-running locomotor activity rhythms of Hrh1-/- and Hrh3-/- mice. We also determined the expression of Per1, Per2 and Bmal1 genes in the suprachiasmatic nuclei, several areas of the cerebral cortex and striatum under symmetric 24 h light-dark cycle at zeitgeber times 14 and 6 by using radioactive in situ hybridization. We found no differences between Hrh1-/- and wild type mice in the length, amplitude and mesor of diurnal and free-running activity rhythms as well as in expression of Per1, Per2 and Bmal1 genes in any of the examined brain structures. The amplitude of free-running activity rhythm of the Hrh3-/- mice was significantly flattened, whereas the expression of the clock genes in Hrh3-/- mice was similar to the wild type animals in all of the assessed brain structures. Therefore, the knockout of Hrh1 receptor had no effects on the circadian rhythm of spontaneous locomotion, and a knockout of Hrh3 receptor caused a substantial reduction of free-running activity rhythm amplitude, but none of these knockout models affected the expression patterns of the core clock genes in any of the studied brain structures.
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Affiliation(s)
- Stanislav V. Rozov
- Neuroscience Center and Department of Anatomy, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Tarja Porkka-Heiskanen
- Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Pertti Panula
- Neuroscience Center and Department of Anatomy, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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Abstract
Cortical electroencephalographic activity arises from corticothalamocortical interactions, modulated by wake-promoting monoaminergic and cholinergic input. These wake-promoting systems are regulated by hypothalamic hypocretin/orexins, while GABAergic sleep-promoting nuclei are found in the preoptic area, brainstem and lateral hypothalamus. Although pontine acetylcholine is critical for REM sleep, hypothalamic melanin-concentrating hormone/GABAergic cells may "gate" REM sleep. Daily sleep-wake rhythms arise from interactions between a hypothalamic circadian pacemaker and a sleep homeostat whose anatomical locus has yet to be conclusively defined. Control of sleep and wakefulness involves multiple systems, each of which presents vulnerability to sleep/wake dysfunction that may predispose to physical and/or neuropsychiatric disorders.
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Affiliation(s)
- Michael D Schwartz
- Biosciences Division, Center for Neuroscience, SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, USA
| | - Thomas S Kilduff
- Biosciences Division, Center for Neuroscience, SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, USA.
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Distribution of histaminergic neuronal cluster in the rat and mouse hypothalamus. J Chem Neuroanat 2015; 68:1-13. [DOI: 10.1016/j.jchemneu.2015.07.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/11/2015] [Accepted: 07/01/2015] [Indexed: 01/03/2023]
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Histamine H1 receptor occupancy by the new-generation antipsychotics olanzapine and quetiapine: a positron emission tomography study in healthy volunteers. Psychopharmacology (Berl) 2015; 232:3497-505. [PMID: 26146015 DOI: 10.1007/s00213-015-4002-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 06/19/2015] [Indexed: 10/23/2022]
Abstract
RATIONALE Histamine H1 antagonists have hypnotic, appetite-promoting, and sedative side effects. Most second-generation antipsychotics have potent antagonistic effects on histamine H1 receptor (H1R). Positron emission tomography (PET) can measure the H1R occupancy (H1RO) in vivo, although there are no reports regarding antipsychotics. OBJECTIVES We studied the H1RO of olanzapine and quetiapine in vivo with respect to their plasma concentrations and subjective drowsiness by performing human PET imaging studies with [(11)C]doxepin, a potent PET ligand of H1R. METHODS Six healthy Japanese male volunteers were enrolled. Cross-randomized PET imaging was performed after a single oral administration of olanzapine (2.5 mg), quetiapine (25 mg), or placebo. PET data were analyzed by region of interest and voxel-by-voxel analysis. We concurrently measured plasma drug concentrations by liquid chromatography/tandem mass spectrometry and evaluated subjective sleepiness. RESULTS The binding potential ratios of olanzapine and quetiapine in the cerebral cortex were significantly lower than that of the placebo. The H1RO values of olanzapine and quetiapine in the cortex were approximately 61-80 and 56-81%, respectively. The binding potential ratios of the drugs were significantly lower than that of the placebo in the dorsolateral prefrontal and lateral temporal cortices, and anterior and posterior cingulate gyri. The H1RO values in the cortex were significantly correlated with subjective sleepiness but not plasma drug concentrations. CONCLUSIONS Olanzapine and quetiapine have high H1RO values in the human brain under their clinical minimum doses. This study provides a foundation of the properties by which new-generation antipsychotics block the central histaminergic system in humans.
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Kim YS, Kim YB, Kim WB, Yoon BE, Shen FY, Lee SW, Soong TW, Han HC, Colwell CS, Lee CJ, Kim YI. Histamine resets the circadian clock in the suprachiasmatic nucleus through the H1R-CaV1.3-RyR pathway in the mouse. Eur J Neurosci 2015. [DOI: 10.1111/ejn.13030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoon Sik Kim
- Department of Physiology and Neuroscience Research Institute; Korea University College of Medicine; Seoul 136-705 Korea
| | - Young-Beom Kim
- Department of Physiology and Neuroscience Research Institute; Korea University College of Medicine; Seoul 136-705 Korea
| | - Woong Bin Kim
- Department of Physiology and Neuroscience Research Institute; Korea University College of Medicine; Seoul 136-705 Korea
| | - Bo-Eun Yoon
- Center for Neural Science and Center for Functional Connectomics; Korea Institute of Science and Technology; Seoul 136-791 Korea
- Department of Nanobiomedical Science; Dankook University; Chungnam Korea
| | - Feng-Yan Shen
- Department of Physiology and Neuroscience Research Institute; Korea University College of Medicine; Seoul 136-705 Korea
| | - Seung Won Lee
- Department of Physiology and Neuroscience Research Institute; Korea University College of Medicine; Seoul 136-705 Korea
| | - Tuck-Wah Soong
- Department of Physiology; Yong Loo Lin School of Medicine; National University of Singapore Bik MD9; Singapore Singapore
| | - Hee-Chul Han
- Department of Physiology and Neuroscience Research Institute; Korea University College of Medicine; Seoul 136-705 Korea
| | - Christopher S. Colwell
- Department of Psychiatry & Biobehavioral Sciences; University of California-Los Angeles; Los Angeles CA USA
| | - C. Justin Lee
- Center for Neural Science and Center for Functional Connectomics; Korea Institute of Science and Technology; Seoul 136-791 Korea
| | - Yang In Kim
- Department of Physiology and Neuroscience Research Institute; Korea University College of Medicine; Seoul 136-705 Korea
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Impairment in the aversive memory of mice in the inhibitory avoidance task but not in the elevated plus maze through intra-amygdala injections of histamine. Pharmacol Biochem Behav 2015; 135:237-45. [DOI: 10.1016/j.pbb.2015.05.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 12/20/2022]
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Muindi F, Colas D, Ikeme J, Ruby NF, Heller HC. Loss of Melanopsin Photoreception and Antagonism of the Histamine H3 Receptor by Ciproxifan Inhibit Light-Induced Sleep in Mice. PLoS One 2015; 10:e0128175. [PMID: 26083020 PMCID: PMC4471207 DOI: 10.1371/journal.pone.0128175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 04/24/2015] [Indexed: 12/17/2022] Open
Abstract
Light has direct effects on sleep and wakefulness causing arousal in diurnal animals and sleep in nocturnal animals. In the present study, we assessed the modulation of light-induced sleep by melanopsin and the histaminergic system by exposing mice to millisecond light flashes and continuous light respectively. First, we show that the induction of sleep by millisecond light flashes is dose dependent as a function of light flash number. We found that exposure to 60 flashes of light occurring once every 60 seconds for 1-h (120-ms of total light over an hour) induced a similar amount of sleep as a continuous bright light pulse. Secondly, the induction of sleep by millisecond light flashes was attenuated in the absence of melanopsin when animals were presented with flashes occurring every 60 seconds over a 3-h period beginning at ZT13. Lastly, the acute administration of a histamine H3 autoreceptor antagonist, ciproxifan, blocked the induction of sleep by a 1-h continuous light pulse during the dark period. Ciproxifan caused a decrease in NREMS delta power and an increase in theta activity during both sleep and wake periods respectively. The data suggest that some form of temporal integration occurs in response to millisecond light flashes, and that this process requires melanopsin photoreception. Furthermore, the pharmacological data suggest that the increase of histaminergic neurotransmission is sufficient to attenuate the light-induced sleep response during the dark period.
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Affiliation(s)
- Fanuel Muindi
- Department of Biology, Stanford University, Stanford, California, United States of America
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail:
| | - Damien Colas
- Department of Biology, Stanford University, Stanford, California, United States of America
| | - Jesse Ikeme
- Department of Biology, Stanford University, Stanford, California, United States of America
| | - Norman F. Ruby
- Department of Biology, Stanford University, Stanford, California, United States of America
| | - H. Craig Heller
- Department of Biology, Stanford University, Stanford, California, United States of America
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Maldonado M, Maeyama K. The metabolism of histamine in rat hypothalamus and cortex after reserpine treatment. Neurochem Int 2015; 85-86:31-9. [PMID: 25936509 DOI: 10.1016/j.neuint.2015.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 04/13/2015] [Accepted: 04/21/2015] [Indexed: 10/23/2022]
Abstract
The effect of reserpine on histamine (HA) and tele-methylhistamine (N(τ)-MHA) in hypothalamus and cortex of rats was analyzed and compared to catecholamines. IP injection of reserpine (5 mg/kg) confirmed the effectiveness of reserpine treatment on noradrenaline and dopamine levels. Our in-vitro experiment with synaptosomal/crude mitochondrial fraction from hypothalamus and cortex confirmed that while mono amine oxidase (MAO) is an efficient metabolic enzyme for catecholamines, HA is not significantly affected by its enzymatic action. HMT activity after reserpine, pargyline and L-histidine treatment showed no differences compared to the control values. However HDC was significantly increased in both hypothalamus and cortex. In this study, Ws/Ws rats with deficiency of mast cells were used to clarify aspects of HA metabolism in HAergic neurons by eliminating the contribution of mast cells. The irreversible MAO-B inhibitor Pargyline (65 mg/kg) failed to accumulate N(τ)-MHA in the hypothalamus. However, when animals treated with reserpine and pargyline/reserpine were compared, the last group showed higher N(τ)-MHA values (p < 0.01). Moreover, the precursor of HA, L-histidine (1 g/kg), produced an increase of HA in the hypothalamus to 166% and the cortex to 348%. In conclusion, our results suggest that the effect of reserpine on the HA pools in the brain might be different. The neuronal HA pools are more resistant to reserpine as compared to those of catecholamine. Moreover, the HAergic pool appears to be more resistant to depletion than mast cells' pool, and thus HDC/HMT activity and its localization may play a key role in the understanding of HA metabolism in brain after reserpine treatment.
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Affiliation(s)
- Martin Maldonado
- Department of Pharmacology, School of Medicine, Ehime University, Shigenobu, Ehime 791-02, Japan.
| | - Kazutaka Maeyama
- Department of Pharmacology, School of Medicine, Ehime University, Shigenobu, Ehime 791-02, Japan
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The effect of histidine on mental fatigue and cognitive performance in subjects with high fatigue and sleep disruption scores. Physiol Behav 2015; 147:238-44. [PMID: 25921948 DOI: 10.1016/j.physbeh.2015.04.042] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 03/06/2015] [Accepted: 04/14/2015] [Indexed: 11/21/2022]
Abstract
Our previous study reported that a dried bonito broth known in Japan as 'dashi' improved or ameliorated mood states, including fatigue, during the daily lives of human subjects. Histidine is an amino acid that is present in dried bonito broth, and we sought to evaluate whether histidine would affect feelings of fatigue in humans. We investigated the effects of histidine intake on the feeling of fatigue, mood states and mental task performance by performing a placebo-controlled, double-blind crossover trial. Twenty subjects with high fatigue and sleep disruption scores were asked to ingest histidine or a placebo every day for two weeks. The subjects' mood states were evaluated using the Profile of Mood States (POMS) scale and a visual analog scale (VAS) for eight feelings (fatigue, depression, carelessness, drowsiness, clear thinking, motivation, attentiveness and concentration). We also measured subjects' cognitive performance using the CogHealth test battery. The fatigue T-scores on the POMS test decreased significantly following histidine ingestion compared to placebo ingestion (p<0.05). After two weeks of histidine ingestion, the reaction time for the working memory task in the CogHealth test battery was significantly shorten compared to placebo ingestion. The VAS scores for clear thinking and for attentiveness were increased significantly following histidine ingestion compared to placebo ingestion (p<0.05). These results suggest that daily ingestion of histidine may ameliorate feelings of fatigue, increase performance during working memory tasks, and improve the clear thinking and attentiveness.
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Iida T, Yoshikawa T, Matsuzawa T, Naganuma F, Nakamura T, Miura Y, Mohsen AS, Harada R, Iwata R, Yanai K. Histamine H3 receptor in primary mouse microglia inhibits chemotaxis, phagocytosis, and cytokine secretion. Glia 2015; 63:1213-25. [PMID: 25754956 DOI: 10.1002/glia.22812] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 02/18/2015] [Indexed: 11/06/2022]
Abstract
Histamine is a physiological amine which initiates a multitude of physiological responses by binding to four known G-protein coupled histamine receptor subtypes as follows: histamine H1 receptor (H1 R), H2 R, H3 R, and H4 R. Brain histamine elicits neuronal excitation and regulates a variety of physiological processes such as learning and memory, sleep-awake cycle and appetite regulation. Microglia, the resident macrophages in the brain, express histamine receptors; however, the effects of histamine on critical microglial functions such as chemotaxis, phagocytosis, and cytokine secretion have not been examined in primary cells. We demonstrated that mouse primary microglia express H2 R, H3 R, histidine decarboxylase, a histamine synthase, and histamine N-methyltransferase, a histamine metabolizing enzyme. Both forskolin-induced cAMP accumulation and ATP-induced intracellular Ca(2+) transients were reduced by the H3 R agonist imetit but not the H2 R agonist amthamine. H3 R activation on two ubiquitous second messenger signalling pathways suggests that H3 R can regulate various microglial functions. In fact, histamine and imetit dose-dependently inhibited microglial chemotaxis, phagocytosis, and lipopolysaccharide (LPS)-induced cytokine production. Furthermore, we confirmed that microglia produced histamine in the presence of LPS, suggesting that H3 R activation regulate microglial function by autocrine and/or paracrine signalling. In conclusion, we demonstrate the involvement of histamine in primary microglial functions, providing the novel insight into physiological roles of brain histamine.
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Affiliation(s)
- Tomomitsu Iida
- Department of Pharmacology, Tohoku University Graduate School of Medicine, 2-1, Seiryo-Machi, Aoba-Ku, Sendai, Japan; Cyclotron Radioisotope Center, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, Japan
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Horii Y, Fujisaki Y, Fuyuki R, Nagai K. l-Carnosine’s dose-dependent effects on muscle sympathetic nerves and blood flow. Neurosci Lett 2015; 591:144-148. [DOI: 10.1016/j.neulet.2015.02.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 02/10/2015] [Accepted: 02/16/2015] [Indexed: 11/27/2022]
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Sundvik M, Panula P. Interactions of the orexin/hypocretin neurones and the histaminergic system. Acta Physiol (Oxf) 2015; 213:321-33. [PMID: 25484194 DOI: 10.1111/apha.12432] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 10/26/2014] [Accepted: 12/01/2014] [Indexed: 12/28/2022]
Abstract
Histaminergic and orexin/hypocretin systems are components in the brain wake-promoting system. Both are affected in the sleep disorder narcolepsy, but the role of histamine in narcolepsy is unclear. The histaminergic neurones are activated by the orexin/hypocretin system in rodents, and the development of the orexin/hypocretin neurones is bidirectionally regulated by the histaminergic system in zebrafish. This review summarizes the current knowledge of the interactions of these two systems in normal and pathological conditions in humans and different animal models.
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Affiliation(s)
- M. Sundvik
- Institute of Biomedicine, Anatomy, and Neuroscience center; University of Helsinki; Helsinki Finland
| | - P. Panula
- Institute of Biomedicine, Anatomy, and Neuroscience center; University of Helsinki; Helsinki Finland
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García-Martín E, Martínez C, Serrador M, Alonso-Navarro H, Ayuso P, Navacerrada F, Agúndez JAG, Jiménez-Jiménez FJ. Diamine Oxidase rs10156191 and rs2052129 Variants Are Associated With the Risk for Migraine. Headache 2015; 55:276-86. [DOI: 10.1111/head.12493] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Elena García-Martín
- Department of Biochemistry and Molecular Biology; University of Extremadura; Cáceres Spain
- Red de Investigación de reacciones adversas a alergenos y fármacos; Instituto de Salud Carlos III; Madrid Spain
| | - Carmen Martínez
- Red de Investigación de reacciones adversas a alergenos y fármacos; Instituto de Salud Carlos III; Madrid Spain
- Department of Pharmacology; University of Extremadura; Badajoz Spain
| | - Mercedes Serrador
- Department of Family Medicine; Hospital “Príncipe de Asturias,”; Universidad de Alcalá; Madrid Spain
| | - Hortensia Alonso-Navarro
- Section of Neurology; Hospital Universitario del Sureste; Arganda del Rey (Madrid) Spain
- Department of Medicine-Neurology; Hospital “Príncipe de Asturias,”; Universidad de Alcalá; Madrid Spain
| | - Pedro Ayuso
- Department of Biochemistry and Molecular Biology; University of Extremadura; Cáceres Spain
- Red de Investigación de reacciones adversas a alergenos y fármacos; Instituto de Salud Carlos III; Madrid Spain
| | - Francisco Navacerrada
- Section of Neurology; Hospital Universitario del Sureste; Arganda del Rey (Madrid) Spain
- Service of Neurology; Hospital “Ramón y Cajal,”; Universidad de Alcalá; Madrid Spain
| | - José A. G. Agúndez
- Red de Investigación de reacciones adversas a alergenos y fármacos; Instituto de Salud Carlos III; Madrid Spain
- Department of Pharmacology; University of Extremadura; Cáceres Spain
| | - Félix Javier Jiménez-Jiménez
- Section of Neurology; Hospital Universitario del Sureste; Arganda del Rey (Madrid) Spain
- Department of Medicine-Neurology; Hospital “Príncipe de Asturias,”; Universidad de Alcalá; Madrid Spain
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Expression pattern of histaminergic neurons in the human fetal hypothalamus at second and third trimester. Ann Neurosci 2014; 19:116-20. [PMID: 25205982 PMCID: PMC4117087 DOI: 10.5214/ans.0972.7531.190306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 05/26/2012] [Accepted: 06/18/2012] [Indexed: 01/21/2023] Open
Abstract
Background The hypothalamic nuclei constitute that part of the corticodiencephalic mechanism that activates, controls and integrates the peripheral, autonomic mechanisms, endocrine activity and many somatic functions. Their full integration into behavior requires the neocortex, in particular the limbic system. Purpose An antiserum against histamine was used to reveal the location and time of appearance of the amine in developing fetal hypothalamus. Although the expression pattern of histamine is well studied in mammals, less is known about it in humans. The neurotransmitter histamine plays a crucial role in co-ordinating mutiple inputs from various brain centres. Methods In the present investigations the hypothalamus was studied in the human fetus ranging from 19 weeks of gestation (GW) to term by using immunocytochemistry. Distinct neurons that stained with Pischinger’s methylene blue were obsereved from 19 GW to term. Sections adjacent to those that contained neurons were stained for histamine labeling. Immunoreactive neurons in the hypothalamus at 19 GW of gestation show relatively meager population. Results Histamine immunoreactive (His-ir) neurons of the hypothalamus were divisible in lateral and ventrolateral subgroups at 19 GW to 24 GW At 32 GW along with the neuronal cell bodies some beaded fibers were visible. There was progressive increase in the histamine expressing neurons as the fetus grows. In term fetal specimens, two to three small groups of his-ir neurons gradually merged in a single large ventrolateral group. Conclusion The findings of the present study provide for a better understanding of the chemoneuroarchitecture of histamine containing neurons in hypothalamus during second and third trimester of human fetal development.
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He M, Zhang Q, Deng C, Wang H, Huang XF. Olanzapine-activated AMPK signaling in the dorsal vagal complex is attenuated by histamine H1 receptor agonist in female rats. Endocrinology 2014; 155:4895-904. [PMID: 25264935 DOI: 10.1210/en.2014-1326] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Weight gain and its related metabolic disorders are major side effects associated with second generation antipsychotic drug treatment. The dorsal vagal complex (DVC) and AMP-activated protein kinase (AMPK) are implicated in the regulation of food intake and body weight. Blocking the histamine H1 receptor contributes to antipsychotic-induced weight gain. The present study investigated the time-dependent effect of olanzapine treatment (8, 16, and 36 d) on DVC AMPK signaling in olanzapine-induced weight gain and whether these changes are associated with olanzapine-induced H1 receptor antagonism. During the 8-day olanzapine treatment, the rats were hyperphagic and rapidly gained weight. The phosphorylation of AMPK (pAMPK) (activated AMPK) as well as its directly downstream phospho-acetyl-coenzyme A carboxylase was significantly increased. The pAMPK/AMPK ratio, an indicator of AMPK activity, was significantly positively correlated with feeding efficiency and weight gain. As treatment was prolonged (16 and 36 d of olanzapine treatment), the rats were no longer hyperphagic, and there were no longer any changes in DVC AMPK signaling. Although the DVC H1 receptor protein expression was not significantly altered by olanzapine, the pAMPK expression was significantly positively correlated with the H1 receptor level after the 8-, 16-, and 36-day olanzapine treatments. Moreover, we showed that an H1 receptor agonist, 2-(3-trifluoromethylphenyl) histamine, significantly inhibited the olanzapine-induced hyperphagia and DVC AMPK activation in a dose-dependent manner. These results suggest a time-dependent role of DVC AMPK in olanzapine-induced obesity. Thus, olanzapine-induced DVC AMPK activation may be at least partially related to olanzapine's antagonistic effect on the H1 receptor.
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Affiliation(s)
- Meng He
- Centre for Translational Neuroscience (M.H., Q.Z., C.D., H.W., X.-F.H.), School of Medicine and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong 2522, New South Wales, Australia; and Schizophrenia Research Institute (C.D., X.-F.H.), Darlinghurst 2010, New South Wales, Australia
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Electric stimulation of the tuberomamillary nucleus affects epileptic activity and sleep-wake cycle in a genetic absence epilepsy model. Epilepsy Res 2014; 109:119-25. [PMID: 25524851 DOI: 10.1016/j.eplepsyres.2014.10.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/13/2014] [Accepted: 10/28/2014] [Indexed: 12/20/2022]
Abstract
Deep brain stimulation (DBS) is a promising approach for epilepsy treatment, but the optimal targets and parameters of stimulation are yet to be investigated. Tuberomamillary nucleus (TMN) is involved in EEG desynchronization-one of the proposed mechanisms for DBS action. We studied whether TMN stimulation could interfere with epileptic spike-wave discharges (SWDs) in WAG/Rij rats with inherited absence epilepsy and whether such stimulation would affect sleep-wake cycle. EEG and video registration were used to determine SWD occurrence and stages of sleep and wake during three-hours recording sessions. Stimulation (100Hz) was applied in two modes: closed-loop (with previously determined interruption threshold intensity) or open-loop mode (with 50% or 70% threshold intensity). Closed-loop stimulation successfully interrupted SWDs but elevated their number by 148 ± 54% compared to baseline. It was accompanied by increase in number of episodes but not total duration of both active and passive wakefulness. Open-loop stimulation with amplitude 50% threshold did not change measured parameters, though 70% threshold stimulation reduced SWDs number by 40 ± 9%, significantly raised the amount of active wakefulness and decreased the amount of both slow-wave and rapid eye movement sleep. These results suggest that the TMN is unfavorable as a target for DBS as its stimulation may cause alterations in sleep-wake cycle. A careful choosing of parameters and control of sleep-wake activity is necessary when applying DBS in epilepsy.
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Kraus MM, Prast H, Philippu A. Influence of the hippocampus on amino acid utilizing and cholinergic neurons within the nucleus accumbens is promoted by histamine via H₁ receptors. Br J Pharmacol 2014; 170:170-6. [PMID: 23594121 DOI: 10.1111/bph.12212] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 02/24/2013] [Accepted: 03/26/2013] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND AND PURPOSE The influence of the neurotransmitter histamine on spontaneous and stimulation-evoked release of glutamate, aspartate, GABA and ACh in the nucleus accumbens (NAc) was investigated in vivo. EXPERIMENTAL APPROACH Using the push-pull superfusion technique, histaminergic compounds were applied to the NAc and neurotransmitter release was assessed. In some experiments, the fornix/fimbria of the hippocampus was electrically stimulated by a microelectrode and evoked potentials were monitored in the NAc. KEY RESULTS Superfusion of the NAc with the H1 receptor antagonist triprolidine (50 μM) decreased spontaneous outflow of glutamate, aspartate and ACh, while release of GABA remained unaffected. Superfusion with histamine elevated release of ACh, without influencing that of the amino acids. Electrical stimulation of the fornix/fimbria enhanced the output of amino acids and ACh within the NAc. The evoked outflow of glutamate and ACh was diminished on superfusion with triprolidine, while release of aspartate and GABA was not affected. Superfusion of the NAc with histamine intensified the stimulation-evoked release of glutamate and Ach. Histamine also elevated the stimulation-induced release of aspartate, without influencing that of GABA. Presuperfusion with triprolidine abolished the reinforced effect of histamine on stimulation-evoked transmitter release within the NAc. CONCLUSION AND IMPLICATIONS Neuronal histamine activates H1 receptors and increases spontaneous release of glutamate, aspartate and ACh within the NAc. Stimulation of the hippocampal fornix/fimbria tract also enhances release of glutamate and ACh within the NAc and this effect is intensified by H1 receptor stimulation within the NAc. The latter effects, which are mediated by hippocampal afferences, might play an important role in mnemonic performance and in emotional processes such as anxiety and stress disorders.
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Affiliation(s)
- M M Kraus
- Department of Pharmacology and Toxicology, University of Innsbruck, Innsbruck
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Bessho Y, Iwakoshi-Ukena E, Tachibana T, Maejima S, Taniuchi S, Masuda K, Shikano K, Kondo K, Furumitsu M, Ukena K. Characterization of an avian histidine decarboxylase and localization of histaminergic neurons in the chicken brain. Neurosci Lett 2014; 578:106-10. [DOI: 10.1016/j.neulet.2014.06.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 05/17/2014] [Accepted: 06/13/2014] [Indexed: 11/30/2022]
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Li B, Zhu JN, Wang JJ. Histaminergic afferent system in the cerebellum: structure and function. CEREBELLUM & ATAXIAS 2014; 1:5. [PMID: 26331029 PMCID: PMC4549136 DOI: 10.1186/2053-8871-1-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 03/14/2014] [Indexed: 12/16/2022]
Abstract
Histaminergic afferent system of the cerebellum, having been considered as an essential component of the direct hypothalamocerebellar circuits, originates from the tuberomammillary nucleus in the hypothalamus. Unlike the mossy fibers and climbing fibers, the histaminergic afferent fibers, a third type of cerebellar afferents, extend fine varicose fibers throughout the cerebellar cortex and nuclei. Histamine receptors, belonging to the family of G protein-coupled receptors, are widely present in the cerebellum. Through these histamine receptors, histamine directly excites Purkinje cells and granule cells in the cerebellar cortex, as well as the cerebellar nuclear neurons. Therefore, the histaminergic afferents parallelly modulate these dominant components in the cerebellar circuitry and consequently influence the final output of the cerebellum. In this way, the histaminergic afferent system actively participates in the cerebellum-mediated motor balance and coordination and nonsomatic functions. Accordingly, histaminergic reagents may become potential drugs for clinical treatment of cerebellar ataxia and other cerebellar disease. On the other hand, considering the hypothalamus is a high regulatory center for autonomic and visceral activities, the hypothalamocerebellar histaminergic fibers/projections, bridging the nonsomatic center to somatic structure, may play a critical role in the somatic-nonsomatic integration.
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Affiliation(s)
- Bin Li
- Department of Biological Science and Technology and State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Mailbox 426, 22 Hankou Road, Nanjing, 210093 China
| | - Jing-Ning Zhu
- Department of Biological Science and Technology and State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Mailbox 426, 22 Hankou Road, Nanjing, 210093 China
| | - Jian-Jun Wang
- Department of Biological Science and Technology and State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Mailbox 426, 22 Hankou Road, Nanjing, 210093 China
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Mohsen A, Yoshikawa T, Miura Y, Nakamura T, Naganuma F, Shibuya K, Iida T, Harada R, Okamura N, Watanabe T, Yanai K. Mechanism of the histamine H3 receptor-mediated increase in exploratory locomotor activity and anxiety-like behaviours in mice. Neuropharmacology 2014; 81:188-94. [DOI: 10.1016/j.neuropharm.2014.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 02/01/2014] [Accepted: 02/04/2014] [Indexed: 10/25/2022]
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85
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Nikolic K, Filipic S, Agbaba D, Stark H. Procognitive properties of drugs with single and multitargeting H3 receptor antagonist activities. CNS Neurosci Ther 2014; 20:613-23. [PMID: 24836924 DOI: 10.1111/cns.12279] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/07/2014] [Accepted: 04/07/2014] [Indexed: 01/01/2023] Open
Abstract
The histamine H3 receptor (H3 R) is an important modulator of numerous central control mechanisms. Novel lead optimizations for H3 R antagonists/inverse agonists involved studies of structure-activity relationships, cross-affinities, and pharmacokinetic properties of promising ligands. Blockade of inhibitory histamine H3 autoreceptors reinforces histaminergic transmission, while antagonism of H3 heteroreceptors accelerates the corticolimbic liberation of acetylcholine, norepinephrine, glutamate, dopamine, serotonin and gamma-aminobutyric acid (GABA). The H3 R positioned at numerous neurotransmission crossroads indicates therapeutic applications of small-molecule H3 R modulators in a number of psychiatric and neurodegenerative diseases with various clinical candidates available. Dual target drugs displaying H3 R antagonism/inverse agonism with inhibition of acetylcholine esterase (AChE), histamine N-methyltransferase (HMT), or serotonin transporter (SERT) are novel class of procognitive agents. Main chemical diversities, pharmacophores, and pharmacological profiles of procognitive agents acting as H3 R antagonists/inverse agonists and dual H3 R antagonists/inverse agonists with inhibiting activity on AChE, HMT, or SERT are highlighted here.
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Affiliation(s)
- Katarina Nikolic
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Belgrade, Belgrade, Serbia
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86
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Takagishi M, Gouraud SS, Bhuiyan MER, Kohsaka A, Maeda M, Waki H. Activation of histamine H1 receptors in the nucleus tractus solitarii attenuates cardiac baroreceptor reflex function in rats. Acta Physiol (Oxf) 2014; 211:73-81. [PMID: 24655789 DOI: 10.1111/apha.12278] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/09/2013] [Accepted: 03/11/2014] [Indexed: 11/28/2022]
Abstract
AIM The nucleus tractus solitarii (NTS) is a central brainstem structure that plays an important role in regulating cardiovascular homeostasis. In this study, we examined whether H1 receptors in the NTS can control the baroreceptor reflex function by modulating synaptic transmission. METHODS Cardiac baroreceptor reflex function was assessed before and after the microinjection of 2-pyridylethylamine (10-25 nmol), a histamine H1 receptor-specific agonist, into the NTS of urethane-anaesthetized Wistar rats. The cardiovascular responses induced by l-glutamate microinjection into the NTS were also examined before and after the NTS administration of 2-pyridylethylamine. RESULTS Nucleus tractus solitarii microinjections of 2-pyridylethylamine significantly inhibited the gain of the cardiac baroreceptor reflex and bradycardiac/depressor responses induced by l-glutamate microinjection into the NTS. These findings suggest that histamine H1 receptors regulate the cardiac baroreceptor reflex in a post-synaptic manner to inhibit barosensitive NTS neurons. CONCLUSION Taken together with our previous findings, the present results provide further evidence that histamine may play a role within the NTS in regulating cardiovascular homeostasis.
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Affiliation(s)
- M. Takagishi
- Department of Physiology; Wakayama Medical University School of Medicine; Wakayama Japan
- Department of Therapeutic Health Promotion; Kansai University of Health Sciences; Osaka Japan
| | - S. S. Gouraud
- Department of Physiology; Wakayama Medical University School of Medicine; Wakayama Japan
| | - M. E. R. Bhuiyan
- Department of Physiology; Wakayama Medical University School of Medicine; Wakayama Japan
| | - A. Kohsaka
- Department of Physiology; Wakayama Medical University School of Medicine; Wakayama Japan
| | - M. Maeda
- Department of Physiology; Wakayama Medical University School of Medicine; Wakayama Japan
| | - H. Waki
- Department of Physiology; Wakayama Medical University School of Medicine; Wakayama Japan
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87
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Panula P, Sundvik M, Karlstedt K. Developmental roles of brain histamine. Trends Neurosci 2014; 37:159-68. [PMID: 24486025 DOI: 10.1016/j.tins.2014.01.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/31/2013] [Accepted: 01/02/2014] [Indexed: 12/17/2022]
Abstract
Histamine appears early during brain development, has been shown to regulate fetal and adult brain-derived stem cells in a receptor type-dependent manner, and has widespread actions on systems involved in arousal and movement. Developmental studies in both rodents and zebrafish have elucidated the spatiotemporal patterning of the histaminergic system and, in zebrafish, have revealed the mechanisms whereby histamine regulates the number of hypocretin/orexin (hcrt) neurons, which in turn may regulate the number of histaminergic cells. Recent demonstrations of increased numbers of histaminergic neurons in patients with narcolepsy highlight the importance, for our understanding of both normal and pathological brain function, of understanding these interactions. Here, we review recent research into the developmental roles of histamine and suggest key areas for future research.
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Affiliation(s)
- Pertti Panula
- Neuroscience Center, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland; Institute of Biomedicine, Anatomy, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland.
| | - Maria Sundvik
- Neuroscience Center, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland; Institute of Biomedicine, Anatomy, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland
| | - Kaj Karlstedt
- Institute of Biomedicine, Physiology, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland
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88
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Valko PO, Gavrilov YV, Yamamoto M, Reddy H, Haybaeck J, Mignot E, Baumann CR, Scammell TE. Increase of histaminergic tuberomammillary neurons in narcolepsy. Ann Neurol 2014; 74:794-804. [PMID: 24006291 DOI: 10.1002/ana.24019] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 07/12/2013] [Accepted: 08/10/2013] [Indexed: 12/21/2022]
Affiliation(s)
- Philipp O. Valko
- Department of Neurology; Beth Israel Deaconess Medical Center; Boston MA
- Department of Neurology; University Hospital of Zurich; Zurich Switzerland
| | - Yury V. Gavrilov
- Department of Neurology; Beth Israel Deaconess Medical Center; Boston MA
- Department of Neurology; University Hospital of Zurich; Zurich Switzerland
- Department of General Pathology and Pathological Physiology; Institute of Experimental Medicine; St Petersburg Russia
| | - Mihoko Yamamoto
- Department of Neurology; Beth Israel Deaconess Medical Center; Boston MA
| | - Hasini Reddy
- Department of Neuropathology; Beth Israel Deaconess Medical Center; Boston MA
| | - Johannes Haybaeck
- Department of Neuropathology, Institute of Pathology; Medical University of Graz; Graz Austria
| | - Emmanuel Mignot
- Department of Psychiatry; Stanford University Center for Narcolepsy; Palo Alto CA
| | - Christian R. Baumann
- Department of Neurology; Beth Israel Deaconess Medical Center; Boston MA
- Department of Neurology; University Hospital of Zurich; Zurich Switzerland
| | - Thomas E. Scammell
- Department of Neurology; Beth Israel Deaconess Medical Center; Boston MA
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89
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Tighilet B, Mourre C, Lacour M. Plasticity of the histamine H3 receptors after acute vestibular lesion in the adult cat. Front Integr Neurosci 2014; 7:87. [PMID: 24427120 PMCID: PMC3879797 DOI: 10.3389/fnint.2013.00087] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 11/16/2013] [Indexed: 11/13/2022] Open
Abstract
After unilateral vestibular neurectomy (UVN) many molecular and neurochemical mechanisms underlie the neurophysiological reorganizations occurring in the vestibular nuclei (VN) complex, as well as the behavioral recovery process. As a key regulator, the histaminergic system appears to be a likely candidate because drugs interfering with histamine (HA) neurotransmission facilitate behavioral recovery after vestibular lesion. This study aimed at analyzing the post-lesion changes of the histaminergic system by quantifying binding to histamine H3 receptors (H3R; mediating namely histamine autoinhibition) using a histamine H3 receptor agonist ([3H]N-α-methylhistamine). Experiments were done in brain sections of control cats (N = 6) and cats submitted to UVN and killed 1 (N = 6) or 3 (N = 6) weeks after the lesion. UVN induced a bilateral decrease in binding density of the agonist [3H]N-α-methylhistamine to H3R in the tuberomammillary nuclei (TMN) at 1 week post-lesion, with a predominant down-regulation in the ipsilateral TMN. The bilateral decrease remained at the 3 weeks survival time and became symmetric. Concerning brainstem structures, binding density in the VN, the prepositus hypoglossi, the subdivisions of the inferior olive decreased unilaterally on the ipsilateral side at 1 week and bilaterally 3 weeks after UVN. Similar changes were observed in the subdivisions of the solitary nucleus only 1 week after the lesion. These findings indicate vestibular lesion induces plasticity of the histamine H3R, which could contribute to vestibular function recovery.
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Affiliation(s)
- Brahim Tighilet
- Laboratoire de Neurosciences Intégratives et Adaptatives, UMR 7260, FR - Comportement, Cerveau, Cognition (Behavior, Brain, and Cognition), Centre Saint-Charles, Case B, Centre National de la Recherche Scientifique, Aix-Marseille Université Marseille, France
| | - Christiane Mourre
- Laboratoire de Neurosciences Cognitives, UMR 7291, Centre Saint-Charles, Centre National de la Recherche Scientifique, Aix-Marseille Université Marseille, France
| | - Michel Lacour
- Laboratoire de Neurosciences Intégratives et Adaptatives, UMR 7260, FR - Comportement, Cerveau, Cognition (Behavior, Brain, and Cognition), Centre Saint-Charles, Case B, Centre National de la Recherche Scientifique, Aix-Marseille Université Marseille, France
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90
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Histamine H₁ receptor occupancy by the new-generation antidepressants fluvoxamine and mirtazapine: a positron emission tomography study in healthy volunteers. Psychopharmacology (Berl) 2013; 230:227-34. [PMID: 23728612 DOI: 10.1007/s00213-013-3146-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 05/08/2013] [Indexed: 10/26/2022]
Abstract
RATIONALE Histamine H₁ antagonists have hypnotic, appetite-promoting, and sedative effects. The affinities of various antidepressants for histamine receptors have only been partially determined in vitro and animal study. Positron emission tomography (PET) can clarify the in vivo dynamics of antidepressants at histamine receptors. OBJECTIVES We performed human PET imaging with [¹¹C]doxepin, a selective PET ligand of the histamine H₁ receptor (H₁R), to study the in vivo affinities of fluvoxamine and mirtazapine for the H₁R. METHODS The subjects were five male healthy Japanese volunteers. We performed cross-randomized PET imaging after single oral administration of fluvoxamine (25mg), mirtazapine (15 mg), or placebo. PET data were analyzed by region-of-interest and voxel-by-voxel analysis. We concurrently measured plasma drug concentrations, using liquid chromatography/tandem mass spectrometry and subjective sleepiness. RESULTS The binding potential ratio of mirtazapine in brain cortex was significantly lower than that of fluvoxamine or placebo. Fluvoxamine did not occupy the H₁R, whereas H₁R occupancy (H₁RO) of mirtazapine reached 80-90 % in the cerebral neocortex. In the voxel-by-voxel analysis, the binding potential of mirtazapine was significantly lower than placebo in the dorsolateral prefrontal cortex, lateral temporal cortex, anterior cingulate gyrus, and posterior cingulate gyrus. The H₁RO of mirtazapine depended on the plasma drug concentration (AUC(0-180 min)) and was related to subjective sleepiness. CONCLUSIONS Our results demonstrate a low affinity of fluvoxamine and a very high affinity of mirtazapine for the human brain H₁R in vivo. This study provides a basis for investigating the efficacy of new-generation antidepressants in central histamine systems.
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91
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Piri M, Ayazi E, Zarrindast MR. Involvement of the dorsal hippocampal dopamine D2 receptors in histamine-induced anxiogenic-like effects in mice. Neurosci Lett 2013; 550:139-44. [PMID: 23872092 DOI: 10.1016/j.neulet.2013.07.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 06/26/2013] [Accepted: 07/02/2013] [Indexed: 11/26/2022]
Abstract
Anxiety-related behaviors increase histamine and dopamine release in the brain. On the other hand, central histamine counteracts reward and reinforcement processes mediated by the mesolimbic dopamine system. We investigated the effects of the histaminergic system and dopamine D2 receptors agents and their interactions on anxiety-related behaviors using the elevated plus-maze (EPM). The intra-hippocampal (Intra-CA1) microinjection of histamine (10 μg/mouse) decreased the percentage of open arm time (%OAT) and open arm entries (%OAE) but not the locomotor activity, indicating an anxiogenic-like response. Quinpirole (0.5 and 2 μg/mouse) or sulpiride (0.3 and 1 μg/mouse) when injected into the dorsal hippocampus also induced anxiety-like behavior, however, the drugs reversed the anxiogenic response induced by the effective dose of histamine (10 μg/mouse). Taken together and under the present experimental design, our results indicate that activation of the dorsal hippocampal histaminergic receptors causes anxiety-like behaviors altered by dopamine D2 receptor agonist and antagonist. Histamine can decrease dopaminergic tone in the dorsal hippocampus through decreasing the endogenous dopamine release, whereas quinpirole does the same via the postsynaptic DA receptors' activation. Sulpiride however renders the same effect through autoreceptors' blockade and potentiated dopamine transmission. Thus, quinpirole and sulpiride seem to compensate the effects of the intra-CA1 injection of exogenous histamine, and tend to exert anxiolytic effects in the presence of histamine.
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Affiliation(s)
- Morteza Piri
- Department of Biology, Faculty of Basic Sciences, Islamic Azad University, Ardabil Branch, Ardabil, Iran
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92
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The histaminergic network in the brain: basic organization and role in disease. Nat Rev Neurosci 2013; 14:472-87. [DOI: 10.1038/nrn3526] [Citation(s) in RCA: 225] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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93
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He M, Deng C, Huang XF. The role of hypothalamic H1 receptor antagonism in antipsychotic-induced weight gain. CNS Drugs 2013; 27:423-34. [PMID: 23640535 DOI: 10.1007/s40263-013-0062-1] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Treatment with second generation antipsychotics (SGAs), notably olanzapine and clozapine, causes severe obesity side effects. Antagonism of histamine H1 receptors has been identified as a main cause of SGA-induced obesity, but the molecular mechanisms associated with this antagonism in different stages of SGA-induced weight gain remain unclear. This review aims to explore the potential role of hypothalamic histamine H1 receptors in different stages of SGA-induced weight gain/obesity and the molecular pathways related to SGA-induced antagonism of these receptors. Initial data have demonstrated the importance of hypothalamic H1 receptors in both short- and long-term SGA-induced obesity. Blocking hypothalamic H1 receptors by SGAs activates AMP-activated protein kinase (AMPK), a well-known feeding regulator. During short-term treatment, hypothalamic H1 receptor antagonism by SGAs may activate the AMPK-carnitine palmitoyltransferase 1 signaling to rapidly increase caloric intake and result in weight gain. During long-term SGA treatment, hypothalamic H1 receptor antagonism can reduce thermogenesis, possibly by inhibiting the sympathetic outflows to the brainstem rostral raphe pallidus and rostral ventrolateral medulla, therefore decreasing brown adipose tissue thermogenesis. Additionally, blocking of hypothalamic H1 receptors by SGAs may also contribute to fat accumulation by decreasing lipolysis but increasing lipogenesis in white adipose tissue. In summary, antagonism of hypothalamic H1 receptors by SGAs may time-dependently affect the hypothalamus-brainstem circuits to cause weight gain by stimulating appetite and fat accumulation but reducing energy expenditure. The H1 receptor and its downstream signaling molecules could be valuable targets for the design of new compounds for treating SGA-induced weight gain/obesity.
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Affiliation(s)
- Meng He
- Centre for Translational Neuroscience, School of Health Sciences, 32.305, Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
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94
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Kallweit U, Aritake K, Bassetti CL, Blumenthal S, Hayaishi O, Linnebank M, Baumann CR, Urade Y. Elevated CSF histamine levels in multiple sclerosis patients. Fluids Barriers CNS 2013; 10:19. [PMID: 23659456 PMCID: PMC3656773 DOI: 10.1186/2045-8118-10-19] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 04/22/2013] [Indexed: 11/10/2022] Open
Abstract
Background Histamine is an ubiquitous inflammatory mediator of numerous physiological processes. Histamine and its receptors have been implicated in multiple sclerosis (MS) disease pathogenesis. We prospectively enrolled 36 MS patients and 19 age and gender-matched healthy volunteers for cerebrospinal fluid (CSF) histamine analysis. Findings CSF histamine levels in MS patient samples were significantly higher (median: 35.6 pg/ml) than in controls (median: 5.5 pg/ml; Beta = 0.525, p < 0.001). In addition, histamine increased with age (Pearson’s correlation, p < 0.003). Conclusions Histamine may be an important factor for both the initiation and maintenance of chronic inflammatory diseases of the central nervous system. Our observation encourages a deeper investigation of the role of histamine in MS.
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Affiliation(s)
- Ulf Kallweit
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, CH, Switzerland
| | - Kosuke Aritake
- Department of Molecular Behavioral Biology, Osaka Bioscience Institute, Osaka, Japan
| | - Claudio L Bassetti
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, CH, Switzerland
| | - Stephan Blumenthal
- Department of Anesthesiology and Intensive Medicine, Triemli Hospital, Zurich, CH, Switzerland
| | - Osamu Hayaishi
- Department of Molecular Behavioral Biology, Osaka Bioscience Institute, Osaka, Japan
| | - Michael Linnebank
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, CH, Switzerland
| | - Christian R Baumann
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, 8091 Zurich, CH, Switzerland
| | - Yoshihiro Urade
- Department of Molecular Behavioral Biology, Osaka Bioscience Institute, Osaka, Japan
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95
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Chee SSA, Menard JL. The histaminergic H1, H2, and H3 receptors of the lateral septum differentially mediate the anxiolytic-like effects of histamine on rats' defensive behaviors in the elevated plus maze and novelty-induced suppression of feeding paradigm. Physiol Behav 2013; 116-117:66-74. [DOI: 10.1016/j.physbeh.2013.03.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 01/29/2013] [Accepted: 03/14/2013] [Indexed: 11/30/2022]
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96
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Gondard E, Anaclet C, Akaoka H, Guo RX, Zhang M, Buda C, Franco P, Kotani H, Lin JS. Enhanced histaminergic neurotransmission and sleep-wake alterations, a study in histamine H3-receptor knock-out mice. Neuropsychopharmacology 2013; 38:1015-31. [PMID: 23303066 PMCID: PMC3629391 DOI: 10.1038/npp.2012.266] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Long-term abolition of a brain arousal system impairs wakefulness (W), but little is known about the consequences of long-term enhancement. The brain histaminergic arousal system is under the negative control of H3-autoreceptors whose deletion results in permanent enhancement of histamine (HA) turnover. In order to determine the consequences of enhancement of the histaminergic system, we compared the cortical EEG and sleep-wake states of H3-receptor knockout (H3R-/-) and wild-type mouse littermates. We found that H3R-/-mice had rich phenotypes. On the one hand, they showed clear signs of enhanced HA neurotransmission and vigilance, i.e., a higher EEG θ power during spontaneous W and a greater extent of W or sleep restriction during behavioral tasks, including environmental change, locomotion, and motivation tests. On the other hand, during the baseline dark period, they displayed deficient W and signs of sleep deterioration, such as pronounced sleep fragmentation and reduced cortical slow activity during slow wave sleep (SWS), most likely due to a desensitization of postsynaptic histaminergic receptors as a result of constant HA release. Ciproxifan (H3-receptor inverse agonist) enhanced W in wild-type mice, but not in H3R-/-mice, indicating a functional deletion of H3-receptors, whereas triprolidine (postsynaptic H1-receptor antagonist) or α-fluoromethylhistidine (HA-synthesis inhibitor) caused a greater SWS increase in H3R-/- than in wild-type mice, consistent with enhanced HA neurotransmission. These sleep-wake characteristics and the obesity phenotypes previously reported in this animal model suggest that chronic enhancement of histaminergic neurotransmission eventually compromises the arousal system, leading to sleep-wake, behavioral, and metabolic disorders similar to those caused by voluntary sleep restriction in humans.
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Affiliation(s)
- Elise Gondard
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France
| | - Christelle Anaclet
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France
| | - Hidéo Akaoka
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France
| | - Rui-Xian Guo
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France
| | - Mei Zhang
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France
| | - Colette Buda
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France
| | - Patricia Franco
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France
| | | | - Jian-Sheng Lin
- Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, Lyon, France,Integrative Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Center, INSERM U1028-CNRS UMR 5292, Faculty of Medicine, Claude Bernard University, 8 av. Rockefeller, 69373, Lyon, Cedex 08 69373, France, Tel: (33) 478 777 116, Fax: (33) 478 777 150, E-mail:
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97
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Bhowmik M, Khanam R, Vohora D. Histamine H3 receptor antagonists in relation to epilepsy and neurodegeneration: a systemic consideration of recent progress and perspectives. Br J Pharmacol 2012; 167:1398-414. [PMID: 22758607 PMCID: PMC3514756 DOI: 10.1111/j.1476-5381.2012.02093.x] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 05/03/2012] [Accepted: 06/12/2012] [Indexed: 12/22/2022] Open
Abstract
The central histaminergic actions are mediated by H(1) , H(2) , H(3) and H(4) receptors. The histamine H(3) receptor regulates the release of histamine and a number of other neurotransmitters and thereby plays a role in cognitive and homeostatic processes. Elevated histamine levels suppress seizure activities and appear to confer neuroprotection. The H(3) receptors have a number of enigmatic features like constitutive activity, interspecies variation, distinct ligand binding affinities and differential distribution of prototypic splice variants in the CNS. Furthermore, this Gi/Go-protein-coupled receptor modulates several intracellular signalling pathways whose involvement in epilepsy and neurotoxicity are yet to be ascertained and hence represent an attractive target in the search for new anti-epileptogenic drugs. So far, H(3) receptor antagonists/inverse agonists have garnered a great deal of interest in view of their promising therapeutic properties in various CNS disorders including epilepsy and related neurotoxicity. However, a number of experiments have yielded opposing effects. This article reviews recent works that have provided evidence for diverse mechanisms of antiepileptic and neuroprotective effects that were observed in various experimental models both in vitro and in vivo. The likely reasons for the apparent disparities arising from the literature are also discussed with the aim of establishing a more reliable basis for the future use of H(3) receptor antagonists, thus improving their utility in epilepsy and associated neurotoxicity.
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Affiliation(s)
- M Bhowmik
- Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard (Hamdard University), New Delhi, India
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98
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Ji W, Suga N. Histaminergic modulation of nonspecific plasticity of the auditory system and differential gating. J Neurophysiol 2012; 109:792-802. [PMID: 23136340 DOI: 10.1152/jn.00930.2011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In the auditory system of the big brown bat (Eptesicus fuscus), paired conditioned tonal (CS) and unconditioned leg stimuli (US) for auditory fear conditioning elicit tone-specific plasticity represented by best-frequency (BF) shifts that are augmented by acetylcholine, whereas unpaired CS and US for pseudoconditioning elicit a small BF shift and prominent nonspecific plasticity at the same time. The latter represents the nonspecific augmentations of auditory responses accompanied by the broadening of frequency tuning and decrease in threshold. It is unknown which neuromodulators are important in evoking the nonspecific plasticity. We found that histamine (HA) and an HA3 receptor (HA3R) agonist (α-methyl-HA) decreased, but an HA3R antagonist (thioperamide) increased, cortical auditory responses; that the HA3R agonist applied to the primary auditory cortex before pseudoconditioning abolished the nonspecific augmentation in the cortex without affecting the small cortical BF shift; and that antagonists of acetylcholine, norepinephrine, dopamine, and serotonin receptors did not abolish the nonspecific augmentation elicited by pseudoconditioning. The histaminergic system plays an important role in eliciting the arousal and defensive behavior, possibly through nonspecific augmentation. Thus HA modulates the nonspecific augmentation, whereas acetylcholine amplifies the BF shifts. These two neuromodulators may mediate differential gating of cortical plasticity.
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Affiliation(s)
- Weiqing Ji
- Dept. of Biology, Washington Univ, St. Louis, MO 63130, USA.
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99
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Waki H, Gouraud SS, Bhuiyan MER, Takagishi M, Yamazaki T, Kohsaka A, Maeda M. Transcriptome of the NTS in exercise-trained spontaneously hypertensive rats: implications for NTS function and plasticity in regulating blood pressure. Physiol Genomics 2012; 45:58-67. [PMID: 23132760 DOI: 10.1152/physiolgenomics.00074.2012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The nucleus tractus solitarii (NTS) controls the cardiovascular system during exercise, and alteration of its function may underlie exercise-induced cardiovascular adaptation. To understand the molecular basis of the NTS's plasticity in regulating blood pressure (BP) and its potential contribution to the antihypertensive effects, we characterized the gene expression profiles at the level of the NTS after long-term daily wheel running in spontaneously hypertensive rats (SHRs). Genome-wide microarray analysis was performed to screen for differentially expressed genes in the NTS between exercise-trained (12 wk) and control SHRs. Pathway analysis using the Kyoto Encyclopedia of Genes and Genomes database revealed that daily exercise altered the expression levels of NTS genes that are functionally associated with metabolic pathways (5 genes), neuroactive ligand-receptor interactions (4 genes), cell adhesion molecules (3 genes), and cytokine-cytokine receptor interactions (3 genes). One of the genes that belonged to the neuroactive ligand-receptor interactions category was histamine receptor H(1). Since we confirmed that the pressor response induced by activation of this receptor is increased after long-term daily exercise, it is suggested that functional plasticity in the histaminergic system may mediate the facilitation of blood pressure control in response to exercise but may not be involved in the lowered basal BP level found in exercise-trained SHRs. Since abnormal inflammatory states in the NTS are known to be prohypertensive in SHRs, altered gene expression of the inflammatory molecules identified in this study may be related to the antihypertensive effects in exercise-trained SHRs, although such speculation awaits functional validation.
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Affiliation(s)
- Hidefumi Waki
- Department of Physiology, Wakayama Medical University School of Medicine, Wakayama, Japan.
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Sundvik M, Panula P. Organization of the histaminergic system in adult zebrafish (Danio rerio) brain: Neuron number, location, and cotransmitters. J Comp Neurol 2012; 520:3827-45. [DOI: 10.1002/cne.23126] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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