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Benoy A, Ramaswamy S. Histamine in the neocortex: Towards integrating multiscale effectors. Eur J Neurosci 2024; 60:4597-4623. [PMID: 39032115 DOI: 10.1111/ejn.16447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 05/10/2024] [Accepted: 06/05/2024] [Indexed: 07/22/2024]
Abstract
Histamine is a modulatory neurotransmitter, which has received relatively less attention in the central nervous system than other neurotransmitters. The functional role of histamine in the neocortex, the brain region that controls higher-order cognitive functions such as attention, learning and memory, remains largely unknown. This article focuses on the emerging roles and mechanisms of histamine release in the neocortex. We describe gaps in current knowledge and propose the application of interdisciplinary tools to dissect the detailed multiscale functional logic of histaminergic action in the neocortex ranging from sub-cellular, cellular, dendritic and synaptic levels to microcircuits and mesoscale effects.
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Affiliation(s)
- Amrita Benoy
- Neural Circuits Laboratory, Biosciences Institute, Newcastle University, Newcastle, UK
| | - Srikanth Ramaswamy
- Neural Circuits Laboratory, Biosciences Institute, Newcastle University, Newcastle, UK
- Theoretical Sciences Visiting Program (TSVP), Okinawa Institute of Science and Technology Graduate University, Onna, Japan
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Zandt MV, Pittenger C. Sexual dimorphism in histamine regulation of striatal dopamine. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.20.595049. [PMID: 38826392 PMCID: PMC11142073 DOI: 10.1101/2024.05.20.595049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Background Many neuropsychiatric disorders show sex differences in prevalence and presentation. For example, Tourette's Syndrome (TS) is diagnosed 3-5 times more often in males. Dopamine modulation of the basal ganglia is implicated in numerous neuropsychiatric conditions, including TS. Motivated by an unexpected genetic finding in a family with TS, we previously characterized the modulation of striatal dopamine by histamine. Methods We used microdialysis to analyze striatal dopamine response to the targeted infusion of histamine and histamine agonists. siRNA knockdown of histamine receptors was used to identify the cellular mediators of observed effects. Results Intracerebroventricular histamine reduced striatal dopamine in male mice, replicating previous work. Unexpectedly, histamine increased striatal dopamine in females. Targeted infusion of selected agonists revealed that the effect in males depends on H2R receptors in the substantia nigra pars compacta (SNc). Knockdown of H2R in SNc GABAergic neurons abrogated the effect, identifying these cells as a key locus of histamine's regulation of dopamine in males. In females, in contrast, H2R had no role; instead, H3R agonists in the striatum increased striatal dopamine. Strikingly, the effect of histamine on dopamine in females was modulated by the estrous cycle, appearing in estrus/proestrus but not in metestrus/diestrus. Conclusions These findings confirm the regulation of striatal dopamine by histamine but identify marked sexual dimorphism in and estrous modulation of this effect. These findings may shed light on the mechanistic underpinnings of other sex differences in the striatal circuitry, perhaps including the marked sex differences seen in TS and related neuropsychiatric conditions.
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Affiliation(s)
- Meghan Van Zandt
- Pittenger Laboratory, Yale University School of Medicine, Department of Psychiatry, New Haven, CT, USA
| | - Christopher Pittenger
- Pittenger Laboratory, Yale University School of Medicine, Department of Psychiatry, New Haven, CT, USA
- Yale Child Study Center, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychology, Yale School of Arts and Sciences, New Haven, USA
- Center for Brain and Mind Health, Yale University School of Medicine, New Haven, USA
- Wu-Tsai Institute, Yale University, New Haven, CT, USA
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Khouma A, Moeini MM, Plamondon J, Richard D, Caron A, Michael NJ. Histaminergic regulation of food intake. Front Endocrinol (Lausanne) 2023; 14:1202089. [PMID: 37448468 PMCID: PMC10338010 DOI: 10.3389/fendo.2023.1202089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/06/2023] [Indexed: 07/15/2023] Open
Abstract
Histamine is a biogenic amine that acts as a neuromodulator within the brain. In the hypothalamus, histaminergic signaling contributes to the regulation of numerous physiological and homeostatic processes, including the regulation of energy balance. Histaminergic neurons project extensively throughout the hypothalamus and two histamine receptors (H1R, H3R) are strongly expressed in key hypothalamic nuclei known to regulate energy homeostasis, including the paraventricular (PVH), ventromedial (VMH), dorsomedial (DMH), and arcuate (ARC) nuclei. The activation of different histamine receptors is associated with differential effects on neuronal activity, mediated by their different G protein-coupling. Consequently, activation of H1R has opposing effects on food intake to that of H3R: H1R activation suppresses food intake, while H3R activation mediates an orexigenic response. The central histaminergic system has been implicated in atypical antipsychotic-induced weight gain and has been proposed as a potential therapeutic target for the treatment of obesity. It has also been demonstrated to interact with other major regulators of energy homeostasis, including the central melanocortin system and the adipose-derived hormone leptin. However, the exact mechanisms by which the histaminergic system contributes to the modification of these satiety signals remain underexplored. The present review focuses on recent advances in our understanding of the central histaminergic system's role in regulating feeding and highlights unanswered questions remaining in our knowledge of the functionality of this system.
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Affiliation(s)
- Axelle Khouma
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - Moein Minbashi Moeini
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - Julie Plamondon
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
| | - Denis Richard
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Medicine, Université Laval, Québec, QC, Canada
| | - Alexandre Caron
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
- Montreal Diabetes Research Center, Montreal, QC, Canada
| | - Natalie Jane Michael
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
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Manz KM, Brady LJ, Calipari ES, Grueter BA. Accumbal Histamine Signaling Engages Discrete Interneuron Microcircuits. Biol Psychiatry 2023; 93:1041-1052. [PMID: 34953589 PMCID: PMC9012818 DOI: 10.1016/j.biopsych.2021.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 10/04/2021] [Accepted: 10/05/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Central histamine (HA) signaling modulates diverse cortical and subcortical circuits throughout the brain, including the nucleus accumbens (NAc). The NAc, a key striatal subregion directing reward-related behavior, expresses diverse HA receptor subtypes that elicit cellular and synaptic plasticity. However, the neuromodulatory capacity of HA within interneuron microcircuits in the NAc remains unknown. METHODS We combined electrophysiology, pharmacology, voltammetry, and optogenetics in male transgenic reporter mice to determine how HA influences microcircuit motifs controlled by parvalbumin-expressing fast-spiking interneurons (PV-INs) and tonically active cholinergic interneurons (CINs) in the NAc shell. RESULTS HA enhanced CIN output through an H2 receptor (H2R)-dependent effector pathway requiring Ca2+-activated small-conductance K+ channels, with a small but discernible contribution from H1Rs and synaptic H3Rs. While PV-IN excitability was unaffected by HA, presynaptic H3Rs decreased feedforward drive onto PV-INs via AC-cAMP-PKA (adenylyl cyclase-cyclic adenosine monophosphate-protein kinase A) signaling. H3R-dependent plasticity was differentially expressed at mediodorsal thalamus and prefrontal cortex synapses onto PV-INs, with mediodorsal thalamus synapses undergoing HA-induced long-term depression. These effects triggered downstream shifts in PV-IN- and CIN-controlled microcircuits, including near-complete collapse of mediodorsal thalamus-evoked feedforward inhibition and increased mesoaccumbens dopamine release. CONCLUSIONS HA targets H1R, H2R, and H3Rs in the NAc shell to engage synapse- and cell type-specific mechanisms that bidirectionally regulate PV-IN and CIN microcircuit activity. These findings extend the current conceptual framework of HA signaling and offer critical insight into the modulatory potential of HA in the brain.
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Affiliation(s)
- Kevin M Manz
- Medical Scientist Training Program, Vanderbilt University, Nashville, Tennessee; Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee; Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - Lillian J Brady
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee
| | - Erin S Calipari
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee; Department of Pharmacology, Vanderbilt University, Nashville, Tennessee
| | - Brad A Grueter
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee; Department of Pharmacology, Vanderbilt University, Nashville, Tennessee; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee; Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee.
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Histamine Release in the Prefrontal Cortex Excites Fast-Spiking Interneurons while GABA Released from the Same Axons Inhibits Pyramidal Cells. J Neurosci 2023; 43:187-198. [PMID: 36639899 PMCID: PMC9838703 DOI: 10.1523/jneurosci.0936-22.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 09/06/2022] [Accepted: 11/03/2022] [Indexed: 12/13/2022] Open
Abstract
We studied how histamine and GABA release from axons originating from the hypothalamic tuberomammillary nucleus (TMN) and projecting to the prefrontal cortex (PFC) influence circuit processing. We optostimulated histamine/GABA from genetically defined TMN axons that express the histidine decarboxylase gene (TMNHDC axons). Whole-cell recordings from PFC neurons in layer 2/3 of prelimbic, anterior cingulate, and infralimbic regions were used to monitor excitability before and after optostimulated histamine/GABA release in male and female mice. We found that histamine-GABA release influences the PFC through actions on distinct neuronal types: the histamine stimulates fast-spiking interneurons; and the released GABA enhances tonic (extrasynaptic) inhibition on pyramidal cells (PyrNs). For fast-spiking nonaccommodating interneurons, histamine released from TMNHDC axons induced additive gain changes, which were blocked by histamine H1 and H2 receptor antagonists. The excitability of other fast-spiking interneurons in the PFC was not altered. In contrast, the GABA released from TMNHDC axons predominantly produced divisive gain changes in PyrNs, increasing their resting input conductance, and decreasing the slope of the input-output relationship. This inhibitory effect on PyrNs was not blocked by histamine receptor antagonists but was blocked by GABAA receptor antagonists. Across the adult life span (from 3 to 18 months of age), the GABA released from TMNHDC axons in the PFC inhibited PyrN excitability significantly more in older mice. For individuals who maintain cognitive performance into later life, the increases in TMNHDC GABA modulation of PyrNs during aging could enhance information processing and be an adaptive mechanism to buttress cognition.SIGNIFICANCE STATEMENT The hypothalamus controls arousal state by releasing chemical neurotransmitters throughout the brain to modulate neuronal excitability. Evidence is emerging that the release of multiple types of neurotransmitters may have opposing actions on neuronal populations in key cortical regions. This study demonstrates for the first time that the neurotransmitters histamine and GABA are released in the prefrontal cortex from axons originating from the tuberomammillary nucleus of the hypothalamus. This work demonstrates how hypothalamic modulation of neuronal excitability is maintained throughout adult life, highlighting an unexpected aspect of the aging process that may help maintain cognitive abilities.
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Caniceiro AB, Bueschbell B, Schiedel AC, Moreira IS. Class A and C GPCR Dimers in Neurodegenerative Diseases. Curr Neuropharmacol 2022; 20:2081-2141. [PMID: 35339177 PMCID: PMC9886835 DOI: 10.2174/1570159x20666220327221830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/21/2022] [Accepted: 03/23/2022] [Indexed: 11/22/2022] Open
Abstract
Neurodegenerative diseases affect over 30 million people worldwide with an ascending trend. Most individuals suffering from these irreversible brain damages belong to the elderly population, with onset between 50 and 60 years. Although the pathophysiology of such diseases is partially known, it remains unclear upon which point a disease turns degenerative. Moreover, current therapeutics can treat some of the symptoms but often have severe side effects and become less effective in long-term treatment. For many neurodegenerative diseases, the involvement of G proteincoupled receptors (GPCRs), which are key players of neuronal transmission and plasticity, has become clearer and holds great promise in elucidating their biological mechanism. With this review, we introduce and summarize class A and class C GPCRs, known to form heterodimers or oligomers to increase their signalling repertoire. Additionally, the examples discussed here were shown to display relevant alterations in brain signalling and had already been associated with the pathophysiology of certain neurodegenerative diseases. Lastly, we classified the heterodimers into two categories of crosstalk, positive or negative, for which there is known evidence.
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Affiliation(s)
- Ana B. Caniceiro
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; ,These authors contributed equally to this work.
| | - Beatriz Bueschbell
- PhD Programme in Experimental Biology and Biomedicine, Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Casa Costa Alemão, 3030-789 Coimbra, Portugal; ,These authors contributed equally to this work.
| | - Anke C. Schiedel
- Department of Pharmaceutical & Medicinal Chemistry, Pharmaceutical Institute, University of Bonn, D-53121 Bonn, Germany;
| | - Irina S. Moreira
- University of Coimbra, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; ,Center for Neuroscience and Cell Biology, Center for Innovative Biomedicine and Biotechnology, 3004-504 Coimbra, Portugal,Address correspondence to this author at the Center for Neuroscience and Cell Biology, Center for Innovative Biomedicine and Biotechnology, 3004-504 Coimbra, Portugal; E-mail:
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Midzyanovskaya IS, Birioukova LM, Storvik M, Luijtelaar GV, Tuomisto LM. The prefrontal cortex shows widespread decrease in H3 histamine receptor binding densities in rats with genetic generalized epilepsies. Epilepsy Res 2022; 182:106921. [DOI: 10.1016/j.eplepsyres.2022.106921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/19/2022] [Accepted: 04/01/2022] [Indexed: 11/03/2022]
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Aceto G, Nardella L, Nanni S, Pecci V, Bertozzi A, Colussi C, D'Ascenzo M, Grassi C. Activation of histamine type 2 receptors enhances intrinsic excitability of medium spiny neurons in the nucleus accumbens. J Physiol 2022; 600:2225-2243. [PMID: 35343587 PMCID: PMC9325548 DOI: 10.1113/jp282962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/21/2022] [Indexed: 11/14/2022] Open
Abstract
Abstract Histaminergic neurons are exclusively located in the hypothalamic tuberomammillary nucleus, from where they project to many brain areas including the nucleus accumbens (NAc), a brain area that integrates diverse monoaminergic inputs to coordinate motivated behaviours. While the NAc expresses various histamine receptor subtypes, the mechanisms by which histamine modulates NAc activity are still poorly understood. Using whole‐cell patch‐clamp recordings, we found that pharmacological activation of histamine 2 (H2) receptors elevates the excitability of NAc medium spiny neurons (MSNs), while activation of H1 receptors failed to significantly affect MSN excitability. The evoked firing of MSNs increased after seconds of local H2 agonist administration and remained elevated for minutes. H2 receptor (H2R) activation accelerated subthreshold depolarization in response to current injection, reduced the latency to fire, diminished action potential afterhyperpolarization and increased the action potential half‐width. The increased excitability was protein kinase A‐dependent and associated with decreased A‐type K+ currents. In addition, selective pharmacological inhibition of the Kv4.2 channel, the main molecular determinant of A‐type K+ currents in MSNs, mimicked and occluded the increased excitability induced by H2R activation. Our results indicate that histaminergic transmission in the NAc increases MSN intrinsic excitability through H2R‐dependent modulation of Kv4.2 channels. Activation of H2R will significantly alter spike firing in MSNs in vivo, and this effect could be an important mechanism by which these receptors mediate certain aspects of goal‐induced behaviours. Key points Histamine is synthesized and released by hypothalamic neurons of the tuberomammillary nucleus and serves as a general modulator for whole‐brain activity including the nucleus accumbens. Histamine receptors type 2 (HR2), which are expressed in the nucleus accumbens, couple to Gαs/off proteins which elevate cyclic adenosine monophosphate levels and activate protein kinase A. Whole‐cell patch‐clamp recordings revealed that H2R activation increased the evoked firing in medium spiny neurons of the nucleus accumbens via protein kinase A‐dependent mechanisms. HR2 activation accelerated subthreshold depolarization in response to current injection, reduced the latency to fire, diminished action potential medium after‐hyperpolarization and increased the action potential half‐width. HR2 activation also reduced A‐type potassium current. Selective pharmacological inhibition of the Kv4.2 channel mimicked and occluded the increased excitability induced by H2R activation.
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Affiliation(s)
- Giuseppe Aceto
- Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Roma, Italia.,Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Luca Nardella
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Simona Nanni
- Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Roma, Italia.,Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Valeria Pecci
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Alessia Bertozzi
- Istituto di Analisi dei Sistemi ed Informatica "Antonio Ruberti", National Research Council, Rome, Italy
| | - Claudia Colussi
- Istituto di Analisi dei Sistemi ed Informatica "Antonio Ruberti", National Research Council, Rome, Italy
| | - Marcello D'Ascenzo
- Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Roma, Italia.,Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Claudio Grassi
- Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Roma, Italia.,Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy
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9
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Arrigoni E, Fuller PM. The Role of the Central Histaminergic System in Behavioral State Control. Curr Top Behav Neurosci 2022; 59:447-468. [PMID: 34595740 DOI: 10.1007/7854_2021_263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Histamine is a small monoamine signaling molecule that plays a role in many peripheral and central physiological processes, including the regulation of wakefulness. The tuberomammillary nucleus is the sole neuronal source of histamine in the brain, and histamine neurons are thought to promote wakefulness and vigilance maintenance - under certain environmental and/or behavioral contexts - through their diffuse innervation of the cortex and other wake-promoting brain circuits. Histamine neurons also contain a number of other putative neurotransmitters, although the functional role of these co-transmitters remains incompletely understood. Within the brain histamine operates through three receptor subtypes that are located on pre- and post-synaptic membranes. Some histamine receptors exhibit constitutive activity, and hence exist in an activated state even in the absence of histamine. Newer medications used to reduce sleepiness in narcolepsy patients in fact enhance histamine signaling by blunting the constitutive activity of these histamine receptors. In this chapter, we provide an overview of the central histamine system with an emphasis on its role in behavioral state regulation and how drugs targeting histamine receptors are used clinically to treat a wide range of sleep-wake disorders.
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Affiliation(s)
- Elda Arrigoni
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
| | - Patrick M Fuller
- Department of Neurological Surgery, University of California Davis School of Medicine, Davis, CA, USA
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Different Peas in the Same Pod: The Histaminergic Neuronal Heterogeneity. Curr Top Behav Neurosci 2021; 59:303-327. [PMID: 34455575 DOI: 10.1007/7854_2021_241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The histaminergic neuronal system is recently receiving increasing attention, as much has been learned over the past 25 years about histamine role as a neurotransmitter. Indeed, this amine is crucial in maintaining arousal and provides important contributions to regulate circadian rhythms, energy, endocrine homeostasis, motor behavior, and cognition. The extent to which these distinct physiological functions are operated by independent histamine neuronal subpopulation is unclear. In the rat brain histamine neuronal cell bodies are grouped within the tuberomamillary nucleus of the posterior hypothalamus in five clusters, E1-E5, each sending overlapping axons throughout the entire central nervous system with no strict topographical pattern. These features lead to the concept that histamine regulation of a wide range of functions in the central nervous system is achieved by the histaminergic neuronal system as a whole. However, increasing experimental evidence suggesting that the histaminergic system is organized into distinct pathways modulated by selective mechanisms challenges this view. In this review, we summarized experimental evidence supporting the heterogeneity of histamine neurons, and their organization in functionally distinct circuits impinging on separate brain regions and displaying selective control mechanisms. This implies independent functions of subsets of histaminergic neurons according to their respective origin and terminal projections with relevant consequences for the development of specific compounds that affect only subsets of histamine neurons, thus increasing the target specificity.
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Misganaw D. Heteromerization of dopaminergic receptors in the brain: Pharmacological implications. Pharmacol Res 2021; 170:105600. [PMID: 33836279 DOI: 10.1016/j.phrs.2021.105600] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/17/2021] [Accepted: 04/02/2021] [Indexed: 12/15/2022]
Abstract
Dopamine exerts its physiological effects through two subtypes of receptors, i.e. the receptors of the D1 family (D1R and D5R) and the D2 family (D2R, D3R, and D4R), which differ in their pattern of distribution, affinity, and signaling. The D1-like subfamily (D1R and D5R) are coupled to Gαs/olf proteins to activate adenylyl cyclase whereas the D2-like receptors are coupled to Gαi/o subunits and suppress the activity of adenylyl cyclase. Dopamine receptors are capable of forming homodimers, heterodimers, and higher-order oligomeric complexes, resulting in a change in the individual protomers' recognition, signaling, and pharmacology. Heteromerization has the potential to modify the canonical pharmacological features of individual monomeric units such as ligand affinity, activation, signaling, and cellular trafficking through allosteric interactions, reviving the field and introducing a new pharmacological target. Since heteromers are expressed and formed in a tissue-specific manner, they could provide the framework to design selective and effective drug candidates, such as brain-penetrant heterobivalent drugs and interfering peptides, with limited side effects. Therefore, heteromerization could be a promising area of pharmacology research, as it could contribute to the development of novel pharmacological interventions for dopamine dysregulated brain disorders such as addiction, schizophrenia, cognition, Parkinson's disease, and other motor-related disorders. This review is articulated based on the three criteria established by the International Union of Basic and Clinical Pharmacology for GPCR heterodimers (IUPHAR): evidence of co-localization and physical interactions in native or primary tissue, presence of a new physiological and functional property than the individual protomers, and loss of interaction and functional fingerprints upon heterodimer disruption.
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Affiliation(s)
- Desye Misganaw
- Pharmacology and Toxicology Unit, Department of Pharmacy, College of Medicine and Health Science, Wollo University, P.O. Box 1145, Dessie, Ethiopia.
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12
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Manz KM, Becker JC, Grueter CA, Grueter BA. Histamine H 3 Receptor Function Biases Excitatory Gain in the Nucleus Accumbens. Biol Psychiatry 2021; 89:588-599. [PMID: 33012522 PMCID: PMC7865000 DOI: 10.1016/j.biopsych.2020.07.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 01/04/2023]
Abstract
BACKGROUND Histamine (HA), a wake-promoting monoamine implicated in stress-related arousal states, is synthesized in histidine decarboxylase-expressing hypothalamic neurons of the tuberomammillary nucleus. Histidine decarboxylase-containing varicosities diffusely innervate striatal and mesolimbic networks, including the nucleus accumbens (NAc). The NAc integrates diverse monoaminergic inputs to coordinate motivated behavior. While the NAc expresses various HA receptor subtypes, mechanisms by which HA modulates NAc circuit dynamics are undefined. METHODS Using male D1tdTomato transgenic reporter mice, whole-cell patch-clamp electrophysiology, and input-specific optogenetics, we employed a targeted pharmacological approach to interrogate synaptic mechanisms recruited by HA signaling at glutamatergic synapses in the NAc. We incorporated an immobilization stress protocol to assess whether acute stress engages these mechanisms at glutamatergic synapses onto D1 receptor-expressing [D1(+)] medium spiny neurons (MSNs) in the NAc core. RESULTS HA negatively regulates excitatory gain onto D1(+)-MSNs via presynaptic H3 receptor-dependent long-term depression that requires Gβγ-directed Akt-GSK3β signaling. Furthermore, HA asymmetrically regulates glutamatergic transmission from the prefrontal cortex and mediodorsal thalamus, with inputs from the prefrontal cortex undergoing robust HA-induced long-term depression. Finally, we report that acute immobilization stress attenuates this long-term depression by recruiting endogenous H3 receptor signaling in the NAc at glutamatergic synapses onto D1(+)-MSNs. CONCLUSIONS Stress-evoked HA signaling in the NAc recruits H3 heteroreceptor signaling to shift thalamocortical input onto D1(+)-MSNs in the NAc. Our findings provide novel insight into an understudied neuromodulatory system within the NAc and implicate HA in stress-associated physiological states.
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Affiliation(s)
- Kevin M Manz
- Medical Scientist Training Program, Vanderbilt University, Nashville, Tennessee; Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee; Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jennifer C Becker
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Carrie A Grueter
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee; Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Brad A Grueter
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee; Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee.
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13
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Atencio ASM, de Manzo FAP, Velasco M. Role of Histamine as a Peripheral Sympathetic Neuromediator and its Interrelation with Substance P. Curr Pharm Des 2020; 26:4486-4495. [DOI: 10.2174/1381612826666200813132951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/29/2020] [Indexed: 11/22/2022]
Abstract
This article is an educational review about the fundamental aspects related to the proposal of the existence
of a peripheral sympathetic reflex regulated by histamine, through its effect on presynaptic H3 type receptors,
under the interaction of a sensory neuron that would be mediated by Substance P. In this respect, we consider
it useful to highlight the role of histamine, so we discuss some aspects about its history, metabolism, and
function, as well as its interaction with H3 type receptors that are considered as neuroreceptors, which define and
typify it as a neuromediator at both levels of the nervous system, central and peripheral.
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Affiliation(s)
- Augusto S. Manzo Atencio
- Clinical Pharmacology Unit, Vargas Medical School, Central University of Venezuela, Caracas, Venezuela
| | | | - Manuel Velasco
- Clinical Pharmacology Unit, Vargas Medical School, Central University of Venezuela, Caracas, Venezuela
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14
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Han S, Márquez-Gómez R, Woodman M, Ellender T. Histaminergic Control of Corticostriatal Synaptic Plasticity during Early Postnatal Development. J Neurosci 2020; 40:6557-6571. [PMID: 32709692 PMCID: PMC7486653 DOI: 10.1523/jneurosci.0740-20.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/30/2020] [Accepted: 07/03/2020] [Indexed: 11/21/2022] Open
Abstract
A reduction in the synthesis of the neuromodulator histamine has been associated with Tourette's syndrome and obsessive-compulsive disorder. Symptoms of these disorders are thought to arise from a dysfunction or aberrant development ofcorticostriatal circuits. Here, we investigated how histamine affects developing corticostriatal circuits, both acutely and longer-term, during the first postnatal weeks, using patch-clamp and field recordings in mouse brain slices (C57Bl/6, male and female). Immunohistochemistry for histamine-containing axons reveals striatal histaminergic innervation by the second postnatal week, and qRT-PCR shows transcripts for H1, H2, and H3 histamine receptors in striatum from the first postnatal week onwards, with pronounced developmental increases in H3 receptor expression. Whole-cell patch-clamp recordings of striatal spiny projection neurons and histamine superfusion demonstrates expression of functional histamine receptors from the first postnatal week onwards, with histamine having diverse effects on their electrical properties, including depolarization of the membrane potential while simultaneously decreasing action potential output. Striatal field recordings and electrical stimulation of corticostriatal afferents revealed that histamine, acting at H3 receptors, negatively modulates corticostriatal synaptic transmission from the first postnatal week onwards. Last, we investigated effects of histamine on longer-term changes at developing corticostriatal synapses and show that histamine facilitates NMDA receptor-dependent LTP via H3 receptors during the second postnatal week, but inhibits synaptic plasticity at later developmental stages. Together, these results show that histamine acutely modulates developing striatal neurons and synapses and controls longer-term changes in developing corticostriatal circuits, thus providing insight into the possible etiology underlying neurodevelopmental disorders resulting from histamine dysregulation.SIGNIFICANCE STATEMENT Monogenic causes of neurologic disorders, although rare, can provide opportunities to both study and understand the brain. For example, a nonsense mutation in the coding gene for the histamine-synthesizing enzyme has been associated with Tourette's syndrome and obsessive-compulsive disorder, and dysfunction of corticostriatal circuits. Nevertheless, the etiology of these neurodevelopmental disorders and histamine's role in the development of corticostriatal circuits have remained understudied. Here we show that histamine is an active neuromodulator during the earliest periods of postnatal life and acts at developing striatal neurons and synapses. Crucially, we show that histamine permits NMDA receptor-dependent corticostriatal synaptic plasticity during an early critical period of postnatal development, which suggests that genetic or environmental perturbations of histamine levels can impact striatal development.
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Affiliation(s)
- Sungwon Han
- Department of Pharmacology, University of Oxford, OX1 3QT, Oxford, United Kingdom
| | | | - Myles Woodman
- Department of Pharmacology, University of Oxford, OX1 3QT, Oxford, United Kingdom
| | - Tommas Ellender
- Department of Pharmacology, University of Oxford, OX1 3QT, Oxford, United Kingdom
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15
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Abdurakhmanova S, Grotell M, Kauhanen J, Linden AM, Korpi ER, Panula P. Increased Sensitivity of Mice Lacking Extrasynaptic δ-Containing GABA A Receptors to Histamine Receptor 3 Antagonists. Front Pharmacol 2020; 11:594. [PMID: 32435195 PMCID: PMC7218123 DOI: 10.3389/fphar.2020.00594] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/17/2020] [Indexed: 11/13/2022] Open
Abstract
Histamine/gamma-aminobutyric acid (GABA) neurons of posterior hypothalamus send wide projections to many brain areas and participate in stabilizing the wake state. Recent research has suggested that GABA released from the histamine/GABA neurons acts on extrasynaptic GABAA receptors and balances the excitatory effect of histamine. In the current study, we show the presence of vesicular GABA transporter mRNA in a majority of quantified hypothalamic histaminergic neurons, which suggest vesicular release of GABA. As histamine/GABA neurons form conventional synapses infrequently, it is possible that GABA released from these neurons diffuses to target areas by volume transmission and acts on extrasynaptic GABA receptors. To investigate this hypothesis, mice lacking extrasynaptic GABAA receptor δ subunit (Gabrd KO) were used. A pharmacological approach was employed to activate histamine/GABA neurons and induce histamine and presumably, GABA, release. Control and Gabrd KO mice were treated with histamine receptor 3 (Hrh3) inverse agonists ciproxifan and pitolisant, which block Hrh3 autoreceptors on histamine/GABA neurons and histamine-dependently promote wakefulness. Low doses of ciproxifan (1 mg/kg) and pitolisant (5 mg/kg) reduced locomotion in Gabrd KO, but not in WT mice. EEG recording showed that Gabrd KO mice were also more sensitive to the wake-promoting effect of ciproxifan (3 mg/kg) than control mice. Low frequency delta waves, associated with NREM sleep, were significantly suppressed in Gabrd KO mice compared with the WT group. Ciproxifan-induced wakefulness was blocked by histamine synthesis inhibitor α-fluoromethylhistidine (αFMH). The findings indicate that both histamine and GABA, released from histamine/GABA neurons, are involved in regulation of brain arousal states and δ-containing subunit GABAA receptors are involved in mediating GABA response.
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Affiliation(s)
| | - Milo Grotell
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Jenna Kauhanen
- Department of Anatomy, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anni-Maija Linden
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Esa R Korpi
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Pertti Panula
- Department of Anatomy, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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16
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Ma S, Hangya B, Leonard CS, Wisden W, Gundlach AL. Dual-transmitter systems regulating arousal, attention, learning and memory. Neurosci Biobehav Rev 2018; 85:21-33. [PMID: 28757457 PMCID: PMC5747977 DOI: 10.1016/j.neubiorev.2017.07.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 07/16/2017] [Indexed: 01/12/2023]
Abstract
An array of neuromodulators, including monoamines and neuropeptides, regulate most behavioural and physiological traits. In the past decade, dramatic progress has been made in mapping neuromodulatory circuits, in analysing circuit dynamics, and interrogating circuit function using pharmacogenetic, optogenetic and imaging methods This review will focus on several distinct neural networks (acetylcholine/GABA/glutamate; histamine/GABA; orexin/glutamate; and relaxin-3/GABA) that originate from neural hubs that regulate wakefulness and related attentional and cognitive processes, and highlight approaches that have identified dual transmitter roles in these behavioural functions. Modulation of these different neural networks might be effective treatments of diseases related to arousal/sleep dysfunction and of cognitive dysfunction in psychiatric and neurodegenerative disorders.
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Affiliation(s)
- Sherie Ma
- The Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia; Florey Department of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia.
| | - Balázs Hangya
- 'Lendület' Laboratory of Systems Neuroscience, Department of Cellular and Network Neurobiology, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest, Hungary
| | | | - William Wisden
- Department of Life Sciences, Imperial College London, London, UK
| | - Andrew L Gundlach
- The Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia; Florey Department of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia; Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, Australia.
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17
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Yu X, Franks NP, Wisden W. Sleep and Sedative States Induced by Targeting the Histamine and Noradrenergic Systems. Front Neural Circuits 2018; 12:4. [PMID: 29434539 PMCID: PMC5790777 DOI: 10.3389/fncir.2018.00004] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 01/11/2018] [Indexed: 01/07/2023] Open
Abstract
Sedatives target just a handful of receptors and ion channels. But we have no satisfying explanation for how activating these receptors produces sedation. In particular, do sedatives act at restricted brain locations and circuitries or more widely? Two prominent sedative drugs in clinical use are zolpidem, a GABAA receptor positive allosteric modulator, and dexmedetomidine (DEX), a selective α2 adrenergic receptor agonist. By targeting hypothalamic neuromodulatory systems both drugs induce a sleep-like state, but in different ways: zolpidem primarily reduces the latency to NREM sleep, and is a controlled substance taken by many people to help them sleep; DEX produces prominent slow wave activity in the electroencephalogram (EEG) resembling stage 2 NREM sleep, but with complications of hypothermia and lowered blood pressure—it is used for long term sedation in hospital intensive care units—under DEX-induced sedation patients are arousable and responsive, and this drug reduces the risk of delirium. DEX, and another α2 adrenergic agonist xylazine, are also widely used in veterinary clinics to sedate animals. Here we review how these two different classes of sedatives, zolpidem and dexmedetomideine, can selectively interact with some nodal points of the circuitry that promote wakefulness allowing the transition to NREM sleep. Zolpidem enhances GABAergic transmission onto histamine neurons in the hypothalamic tuberomammillary nucleus (TMN) to hasten the transition to NREM sleep, and DEX interacts with neurons in the preoptic hypothalamic area that induce sleep and body cooling. This knowledge may aid the design of more precise acting sedatives, and at the same time, reveal more about the natural sleep-wake circuitry.
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Affiliation(s)
- Xiao Yu
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Nicholas P Franks
- Department of Life Sciences, Imperial College London, London, United Kingdom.,Centre for Neurotechnology, Imperial College London, London, United Kingdom.,UK Dementia Research Institute, Imperial College London, London, United Kingdom
| | - William Wisden
- Department of Life Sciences, Imperial College London, London, United Kingdom.,Centre for Neurotechnology, Imperial College London, London, United Kingdom.,UK Dementia Research Institute, Imperial College London, London, United Kingdom
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18
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Hypothalamic Tuberomammillary Nucleus Neurons: Electrophysiological Diversity and Essential Role in Arousal Stability. J Neurosci 2017; 37:9574-9592. [PMID: 28874450 DOI: 10.1523/jneurosci.0580-17.2017] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 08/10/2017] [Accepted: 08/19/2017] [Indexed: 11/21/2022] Open
Abstract
Histaminergic (HA) neurons, found in the posterior hypothalamic tuberomammillary nucleus (TMN), extend fibers throughout the brain and exert modulatory influence over numerous physiological systems. Multiple lines of evidence suggest that the activity of HA neurons is important in the regulation of vigilance despite the lack of direct, causal evidence demonstrating its requirement for the maintenance of arousal during wakefulness. Given the strong correlation between HA neuron excitability and behavioral arousal, we investigated both the electrophysiological diversity of HA neurons in brain slices and the effect of their acute silencing in vivo in male mice. For this purpose, we first validated a transgenic mouse line expressing cre recombinase in histidine decarboxylase-expressing neurons (Hdc-Cre) followed by a systematic census of the membrane properties of both HA and non-HA neurons in the ventral TMN (TMNv) region. Through unsupervised hierarchical cluster analysis, we found electrophysiological diversity both between TMNv HA and non-HA neurons, and among HA neurons. To directly determine the impact of acute cessation of HA neuron activity on sleep-wake states in awake and behaving mice, we examined the effects of optogenetic silencing of TMNv HA neurons in vivo We found that acute silencing of HA neurons during wakefulness promotes slow-wave sleep, but not rapid eye movement sleep, during a period of low sleep pressure. Together, these data suggest that the tonic firing of HA neurons is necessary for the maintenance of wakefulness, and their silencing not only impairs arousal but is sufficient to rapidly and selectively induce slow-wave sleep.SIGNIFICANCE STATEMENT The function of monoaminergic systems and circuits that regulate sleep and wakefulness is often disrupted as part of the pathophysiology of many neuropsychiatric disorders. One such circuit is the posterior hypothalamic histamine (HA) system, implicated in supporting wakefulness and higher brain function, but has been difficult to selectively manipulate owing to cellular heterogeneity in this region. Here we use a transgenic mouse to interrogate both the characteristic firing properties of HA neurons and their specific role in maintaining wakefulness. Our results demonstrate that the acute, cell type-specific silencing of HA neurons during wakefulness is sufficient to not only impair arousal but to rapidly and selectively induce slow-wave sleep. This work furthers our understanding of HA-mediated mechanisms that regulate behavioral arousal.
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19
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Hu W, Chen Z. The roles of histamine and its receptor ligands in central nervous system disorders: An update. Pharmacol Ther 2017; 175:116-132. [DOI: 10.1016/j.pharmthera.2017.02.039] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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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: 118] [Impact Index Per Article: 14.8] [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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21
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Bolam JP, Ellender TJ. Histamine and the striatum. Neuropharmacology 2016; 106:74-84. [PMID: 26275849 PMCID: PMC4917894 DOI: 10.1016/j.neuropharm.2015.08.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/30/2015] [Accepted: 08/06/2015] [Indexed: 12/25/2022]
Abstract
The neuromodulator histamine is released throughout the brain during periods of wakefulness. Combined with an abundant expression of histamine receptors, this suggests potential widespread histaminergic control of neural circuit activity. However, the effect of histamine on many of these circuits is unknown. In this review we will discuss recent evidence for histaminergic modulation of the basal ganglia circuitry, and specifically its main input nucleus; the striatum. Furthermore, we will discuss recent findings of histaminergic dysfunction in several basal ganglia disorders, including in Parkinson's disease and most prominently, in Tourette's syndrome, which has led to a resurgence of interest in this neuromodulator. Combined, these recent observations not only suggest a central role for histamine in modulating basal ganglia activity and behaviour, but also as a possible target in treating basal ganglia disorders. This article is part of the Special Issue entitled 'Histamine Receptors'.
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Affiliation(s)
- J Paul Bolam
- Department of Pharmacology, MRC Brain Network Dynamics Unit, Mansfield Road, OX1 3TH Oxford, United Kingdom
| | - Tommas J Ellender
- Department of Pharmacology, MRC Brain Network Dynamics Unit, Mansfield Road, OX1 3TH Oxford, United Kingdom.
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22
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Wakefulness Is Governed by GABA and Histamine Cotransmission. Neuron 2015; 87:164-78. [PMID: 26094607 PMCID: PMC4509551 DOI: 10.1016/j.neuron.2015.06.003] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 04/29/2015] [Accepted: 05/27/2015] [Indexed: 12/17/2022]
Abstract
Histaminergic neurons in the tuberomammilary nucleus (TMN) of the hypothalamus form a widely projecting, wake-active network that sustains arousal. Yet most histaminergic neurons contain GABA. Selective siRNA knockdown of the vesicular GABA transporter (vgat, SLC32A1) in histaminergic neurons produced hyperactive mice with an exceptional amount of sustained wakefulness. Ablation of the vgat gene throughout the TMN further sharpened this phenotype. Optogenetic stimulation in the caudate-putamen and neocortex of “histaminergic” axonal projections from the TMN evoked tonic (extrasynaptic) GABAA receptor Cl− currents onto medium spiny neurons and pyramidal neurons. These currents were abolished following vgat gene removal from the TMN area. Thus wake-active histaminergic neurons generate a paracrine GABAergic signal that serves to provide a brake on overactivation from histamine, but could also increase the precision of neocortical processing. The long range of histamine-GABA axonal projections suggests that extrasynaptic inhibition will be coordinated over large neocortical and striatal areas. Histaminergic axons corelease GABA into the neocortex and striatum The released GABA produces slow tonic inhibition Reducing vgat expression in histaminergic neurons increases wakefulness Histamine-GABA axons will coordinate tonic inhibition over large cortical areas
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23
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He C, Luo F, Chen X, Chen F, Li C, Ren S, Qiao Q, Zhang J, de Lecea L, Gao D, Hu Z. Superficial Layer-Specific Histaminergic Modulation of Medial Entorhinal Cortex Required for Spatial Learning. Cereb Cortex 2015; 26:1590-1608. [PMID: 25595181 DOI: 10.1093/cercor/bhu322] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The medial entorhinal cortex (MEC) plays a crucial role in spatial learning and memory. Whereas the MEC receives a dense histaminergic innervation from the tuberomamillary nucleus of the hypothalamus, the functions of histamine in this brain region remain unclear. Here, we show that histamine acts via H1Rs to directly depolarize the principal neurons in the superficial, but not deep, layers of the MEC when recording at somata. Moreover, histamine decreases the spontaneous GABA, but not glutamate, release onto principal neurons in the superficial layers by acting at presynaptic H3Rs without effect on synaptic release in the deep layers. Histamine-induced depolarization is mediated via inhibition of Kir channels and requires the activation of protein kinase C, whereas the inhibition of spontaneous GABA release by histamine depends on voltage-gated Ca(2+) channels and extracellular Ca(2+). Furthermore, microinjection of the H1R or H3R, but not H2R, antagonist respectively into the superficial, but not deep, layers of MEC impairs rat spatial learning as assessed by water maze tasks but does not affect the motor function and exploratory activity in an open field. Together, our study indicates that histamine plays an essential role in spatial learning by selectively regulating neuronal excitability and synaptic transmission in the superficial layers of the MEC.
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Affiliation(s)
- Chao He
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Fenlan Luo
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Xingshu Chen
- Department of Histology and Embryology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Fang Chen
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Chao Li
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Shuancheng Ren
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Qicheng Qiao
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Jun Zhang
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Luis de Lecea
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, CA 94304, USA
| | - Dong Gao
- Department of Sleep and Psychology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
| | - Zhian Hu
- Department of Physiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, PR China
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24
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Baldan LC, Williams KA, Gallezot JD, Pogorelov V, Rapanelli M, Crowley M, Anderson GM, Loring E, Gorczyca R, Billingslea E, Wasylink S, Panza KE, Ercan-Sencicek AG, Krusong K, Leventhal BL, Ohtsu H, Bloch MH, Hughes ZA, Krystal JH, Mayes L, de Araujo I, Ding YS, State MW, Pittenger C. Histidine decarboxylase deficiency causes tourette syndrome: parallel findings in humans and mice. Neuron 2014; 81:77-90. [PMID: 24411733 DOI: 10.1016/j.neuron.2013.10.052] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2013] [Indexed: 11/25/2022]
Abstract
Tourette syndrome (TS) is characterized by tics, sensorimotor gating deficiencies, and abnormalities of cortico-basal ganglia circuits. A mutation in histidine decarboxylase (Hdc), the key enzyme for the biosynthesis of histamine (HA), has been implicated as a rare genetic cause. Hdc knockout mice exhibited potentiated tic-like stereotypies, recapitulating core phenomenology of TS; these were mitigated by the dopamine (DA) D2 antagonist haloperidol, a proven pharmacotherapy, and by HA infusion into the brain. Prepulse inhibition was impaired in both mice and humans carrying Hdc mutations. HA infusion reduced striatal DA levels; in Hdc knockout mice, striatal DA was increased and the DA-regulated immediate early gene Fos was upregulated. DA D2/D3 receptor binding was altered both in mice and in humans carrying the Hdc mutation. These data confirm histidine decarboxylase deficiency as a rare cause of TS and identify HA-DA interactions in the basal ganglia as an important locus of pathology.
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Affiliation(s)
| | - Kyle A Williams
- Department of Psychiatry, Yale University School of Medicine.,Department of Child Study Center, Yale University School of Medicine
| | | | | | | | - Michael Crowley
- Department of Child Study Center, Yale University School of Medicine
| | - George M Anderson
- Department of Child Study Center, Yale University School of Medicine.,Department of Laboratory Medicine, Yale University School of Medicine
| | - Erin Loring
- Department of Child Study Center, Yale University School of Medicine.,Department of Genetics, Yale University School of Medicine.,Department of Program on Neurogenetics, Yale University School of Medicine
| | | | | | | | - Kaitlyn E Panza
- Department of Child Study Center, Yale University School of Medicine
| | - A Gulhan Ercan-Sencicek
- Department of Child Study Center, Yale University School of Medicine.,Department of Genetics, Yale University School of Medicine
| | - Kuakarun Krusong
- Department of Psychiatry, Yale University School of Medicine.,Dept. of Biochem., Faculty of Science, Chulalongkorn Univ., Bangkok, Thailand
| | - Bennett L Leventhal
- Nathan S. Kline Institute for Psychiatric Research.,New York University Dept of Child and Adolescent Psychiatry
| | - Hiroshi Ohtsu
- Tohoku University, Graduate School of Engineering, Sendai, Japan
| | - Michael H Bloch
- Department of Psychiatry, Yale University School of Medicine.,Department of Child Study Center, Yale University School of Medicine
| | - Zoë A Hughes
- Neuroscience Research Unit, Pfizer, Inc., Cambridge, MA
| | - John H Krystal
- Department of Psychiatry, Yale University School of Medicine
| | - Linda Mayes
- Department of Psychiatry, Yale University School of Medicine.,Department of Child Study Center, Yale University School of Medicine.,Department of Pediatrics, Yale University School of Medicine.,Department of Psychology, Yale University School of Medicine
| | - Ivan de Araujo
- Department of Psychiatry, Yale University School of Medicine.,John B. Pierce Laboratory, New Haven, CT
| | - Yu-Shin Ding
- Department of Diagnostic Radiology, Yale University School of Medicine
| | - Matthew W State
- Department of Psychiatry, Yale University School of Medicine.,Department of Child Study Center, Yale University School of Medicine.,Department of Genetics, Yale University School of Medicine.,Department of Program on Neurogenetics, Yale University School of Medicine
| | - Christopher Pittenger
- Department of Psychiatry, Yale University School of Medicine.,Department of Child Study Center, Yale University School of Medicine.,Department of Psychology, Yale University School of Medicine.,Integrated Neuroscience Research Program; New Haven, CT 06520
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25
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Moreno E, Moreno-Delgado D, Navarro G, Hoffmann HM, Fuentes S, Rosell-Vilar S, Gasperini P, Rodríguez-Ruiz M, Medrano M, Mallol J, Cortés A, Casadó V, Lluís C, Ferré S, Ortiz J, Canela E, McCormick PJ. Cocaine disrupts histamine H3 receptor modulation of dopamine D1 receptor signaling: σ1-D1-H3 receptor complexes as key targets for reducing cocaine's effects. J Neurosci 2014; 34:3545-58. [PMID: 24599455 PMCID: PMC3942573 DOI: 10.1523/jneurosci.4147-13.2014] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 01/16/2014] [Accepted: 01/27/2014] [Indexed: 01/19/2023] Open
Abstract
The general effects of cocaine are not well understood at the molecular level. What is known is that the dopamine D1 receptor plays an important role. Here we show that a key mechanism may be cocaine's blockade of the histamine H3 receptor-mediated inhibition of D1 receptor function. This blockade requires the σ1 receptor and occurs upon cocaine binding to σ1-D1-H3 receptor complexes. The cocaine-mediated disruption leaves an uninhibited D1 receptor that activates Gs, freely recruits β-arrestin, increases p-ERK 1/2 levels, and induces cell death when over activated. Using in vitro assays with transfected cells and in ex vivo experiments using both rats acutely treated or self-administered with cocaine along with mice depleted of σ1 receptor, we show that blockade of σ1 receptor by an antagonist restores the protective H3 receptor-mediated brake on D1 receptor signaling and prevents the cell death from elevated D1 receptor signaling. These findings suggest that a combination therapy of σ1R antagonists with H3 receptor agonists could serve to reduce some effects of cocaine.
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Affiliation(s)
- Estefanía Moreno
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - David Moreno-Delgado
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Gemma Navarro
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Hanne M. Hoffmann
- Neuroscience Institute and Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Silvia Fuentes
- Neuroscience Institute and Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Santi Rosell-Vilar
- Neuroscience Institute and Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Paola Gasperini
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Mar Rodríguez-Ruiz
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Mireia Medrano
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Josefa Mallol
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Antoni Cortés
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Vicent Casadó
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Carme Lluís
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Sergi Ferré
- National Institute on Drug Abuse, Intramural Research Program, National Institutes of Health, Department of Health and Human Services, Baltimore, Maryland 21224, and
| | - Jordi Ortiz
- Neuroscience Institute and Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Enric Canela
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
| | - Peter J. McCormick
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)
- Institute of Biomedicine of the University of Barcelona (IBUB) and
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, 08028 Spain
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, United Kingdom NR4 7TJ
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Yan H, Zhang X, Hu W, Ma J, Hou W, Zhang X, Wang X, Gao J, Shen Y, Lv J, Ohtsu H, Han F, Wang G, Chen Z. Histamine H3 receptors aggravate cerebral ischaemic injury by histamine-independent mechanisms. Nat Commun 2014; 5:3334. [PMID: 24566390 PMCID: PMC3948077 DOI: 10.1038/ncomms4334] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 01/28/2014] [Indexed: 12/17/2022] Open
Abstract
The role of the histamine H3 receptor (H3R) in cerebral ischaemia/reperfusion (I/R) injury remains unknown. Here we show that H3R expression is upregulated after I/R in two mouse models. H3R antagonists and H3R knockout attenuate I/R injury, which is reversed by an H3R-selective agonist. Interestingly, H1R and H2R antagonists, a histidine decarboxylase (HDC) inhibitor and HDC knockout all fail to compromise the protection by H3R blockade. H3R blockade inhibits mTOR phosphorylation and reinforces autophagy. The neuroprotection by H3R antagonism is reversed by 3-methyladenine and siRNA for Atg7, and is diminished in Atg5−/− mouse embryonic fibroblasts. Furthermore, the peptide Tat-H3RCT414-436, which blocks CLIC4 binding with H3Rs, or siRNA for CLIC4, further increases I/R-induced autophagy and protects against I/R injury. Therefore, H3R promotes I/R injury while its antagonism protects against ischaemic injury via histamine-independent mechanisms that involve suppressing H3R/CLIC4 binding-activated autophagy, suggesting that H3R inhibition is a therapeutic target for cerebral ischaemia. Histamine H3 receptor dysregulation is a hallmark of pathological conditions in the central nervous system, and H3 receptor antagonism is neuroprotective. Here Chen et al. show that histamine-independent H3 receptor activation can enhance neuronal cell death during cerebral ischaemia by suppressing autophagy.
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Affiliation(s)
- Haijing Yan
- 1] Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China [2]
| | - Xiangnan Zhang
- 1] Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China [2] Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, Zhejiang, China [3]
| | - Weiwei Hu
- 1] Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China [2] Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, Zhejiang, China [3]
| | - Jing Ma
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Weiwei Hou
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xingzhou Zhang
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaofen Wang
- 1] Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China [2] Zhejiang Provincial Key Laboratory of Medical Genetics, School of Life Sciences, Wenzhou Medical College, Wenzhou 325035, China
| | - Jieqiong Gao
- 1] Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China [2] Zhejiang Provincial Key Laboratory of Medical Genetics, School of Life Sciences, Wenzhou Medical College, Wenzhou 325035, China
| | - Yao Shen
- 1] Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China [2] Zhejiang Provincial Key Laboratory of Medical Genetics, School of Life Sciences, Wenzhou Medical College, Wenzhou 325035, China
| | - Jianxin Lv
- Zhejiang Provincial Key Laboratory of Medical Genetics, School of Life Sciences, Wenzhou Medical College, Wenzhou 325035, China
| | - Hiroshi Ohtsu
- Department of Engineering, School of Medicine, Tohoku University, Aoba-ku, Sendai 980-8775, Japan
| | - Feng Han
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Guanghui Wang
- Laboratory of Molecular Neuropathology, Department of Pharmacology, Soochow University, College of Pharmaceutical Sciences, Suzhou 215123, China
| | - Zhong Chen
- 1] Department of Pharmacology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China [2] Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, Zhejiang, China
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Blandina P, Munari L, Provensi G, Passani MB. Histamine neurons in the tuberomamillary nucleus: a whole center or distinct subpopulations? Front Syst Neurosci 2012; 6:33. [PMID: 22586376 PMCID: PMC3343474 DOI: 10.3389/fnsys.2012.00033] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 04/16/2012] [Indexed: 11/13/2022] Open
Abstract
Histamine axons originate from a single source, the tuberomamillary nucleus (TMN) of the posterior hypothalamus, to innervate almost all central nervous system (CNS) regions. This feature, a compact cell group with widely distributed fibers, resembles that of other amine systems, such as noradrenaline or serotonin, and is consistent with a function for histamine over a host of physiological processes, including the regulation of the sleep-wake cycle, appetite, endocrine homeostasis, body temperature, pain perception, learning, memory, and emotion. An important question is whether these diverse physiological roles are served by different histamine neuronal subpopulation. While the histamine system is generally regarded as one single functional unit that provides histamine throughout the brain, evidence is beginning to accumulate in favor of heterogeneity of histamine neurons. The aim of this review is to summarize experimental evidence demonstrating that histamine neurons are heterogeneous, organized into functionally distinct circuits, impinging on different brain regions, and displaying selective control mechanisms. This could imply independent functions of subsets of histamine neurons according to their respective origin and terminal projections.
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Affiliation(s)
- Patrizio Blandina
- Dipartimento di Farmacologia Preclinica e Clinica, Universitá degli Studi di Firenze Firenze, Italy
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28
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Hu WW, Chen Z. Role of histamine and its receptors in cerebral ischemia. ACS Chem Neurosci 2012; 3:238-47. [PMID: 22860191 DOI: 10.1021/cn200126p] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 02/10/2012] [Indexed: 12/25/2022] Open
Abstract
Histamine is recognized as a neurotransmitter or neuromodulator in the brain, and it plays a major role in the pathogenic progression after cerebral ischemia. Extracellular histamine increases gradually after ischemia, and this may come from histaminergic neurons or mast cells. Histamine alleviates neuronal damage and infarct volume, and it promotes recovery of neurological function after ischemia; the H1, H2, and H3 receptors are all involved. Further studies suggest that histamine alleviates excitotoxicity, suppresses the release of glutamate and dopamine, and inhibits inflammation and glial scar formation. Histamine may also affect cerebral blood flow by targeting to vascular smooth muscle cells, and promote neurogenesis. Moreover, endogenous histamine is an essential mediator in the cerebral ischemic tolerance. Due to its multiple actions, affecting neurons, glia, vascular cells, and inflammatory cells, histamine is likely to be an important target in cerebral ischemia. But due to its low penetration of the blood-brain barrier and its wide actions in the periphery, histamine-related agents, like H3 antagonists and carnosine, show potential for cerebral ischemia therapy. However, important questions about the molecular aspects and pathophysiology of histamine and related agents in cerebral ischemia remain to be answered to form a solid scientific basis for therapeutic application.
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Affiliation(s)
- Wei-Wei Hu
- Department of Pharmacology, Key Laboratory of Medical
Neurobiology of the Ministry of Health of China, Zhejiang Province
Key Laboratory of Neurobiology, School of Basic Medical Sciences,
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Zhong Chen
- Department of Pharmacology, Key Laboratory of Medical
Neurobiology of the Ministry of Health of China, Zhejiang Province
Key Laboratory of Neurobiology, School of Basic Medical Sciences,
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
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29
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Differential modulation of excitatory and inhibitory striatal synaptic transmission by histamine. J Neurosci 2011; 31:15340-51. [PMID: 22031880 DOI: 10.1523/jneurosci.3144-11.2011] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Information processing in the striatum is critical for basal ganglia function and strongly influenced by neuromodulators (e.g., dopamine). The striatum also receives modulatory afferents from the histaminergic neurons in the hypothalamus which exhibit a distinct diurnal rhythm with high activity during wakefulness, and little or no activity during sleep. In view of the fact that the striatum also expresses a high density of histamine receptors, we hypothesized that released histamine will affect striatal function. We studied the role of histamine on striatal microcircuit function by performing whole-cell patch-clamp recordings of neurochemically identified striatal neurons combined with electrical and optogenetic stimulation of striatal afferents in mouse brain slices. Bath applied histamine had many effects on striatal microcircuits. Histamine, acting at H(2) receptors, depolarized both the direct and indirect pathway medium spiny projection neurons (MSNs). Excitatory, glutamatergic input to both classes of MSNs from both the cortex and thalamus was negatively modulated by histamine acting at presynaptic H(3) receptors. The dynamics of thalamostriatal, but not corticostriatal, synapses were modulated by histamine leading to a facilitation of thalamic input. Furthermore, local inhibitory input to both classes of MSNs was negatively modulated by histamine. Subsequent dual whole-cell patch-clamp recordings of connected pairs of striatal neurons revealed that only lateral inhibition between MSNs is negatively modulated, whereas feedforward inhibition from fast-spiking GABAergic interneurons onto MSNs is unaffected by histamine. These findings suggest that the diurnal rhythm of histamine release entrains striatal function which, during wakefulness, is dominated by feedforward inhibition and a suppression of excitatory drive.
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30
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Iravani MM, Jenner P. Mechanisms underlying the onset and expression of levodopa-induced dyskinesia and their pharmacological manipulation. J Neural Transm (Vienna) 2011; 118:1661-90. [DOI: 10.1007/s00702-011-0698-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Accepted: 08/06/2011] [Indexed: 12/18/2022]
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31
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Hong EY, Lee HS. Retrograde study of projections from the tuberomammillary nucleus to the mesopontine cholinergic complex in the rat. Brain Res 2011; 1383:169-78. [DOI: 10.1016/j.brainres.2011.01.077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 01/21/2011] [Accepted: 01/22/2011] [Indexed: 01/29/2023]
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Horii Y, Nikaido Y, Nagai K, Nakashima T. Exposure to TMT odor affects adrenal sympathetic nerve activity and behavioral consequences in rats. Behav Brain Res 2010; 214:317-22. [DOI: 10.1016/j.bbr.2010.05.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 05/25/2010] [Accepted: 05/26/2010] [Indexed: 10/19/2022]
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33
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Maximino C, Herculano AM. A Review of Monoaminergic Neuropsychopharmacology in Zebrafish. Zebrafish 2010; 7:359-78. [DOI: 10.1089/zeb.2010.0669] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Caio Maximino
- Laboratório de Neuroendocrinologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém/PA, Brazil
- Zebrafish Neuroscience Research Consortium
| | - Anderson Manoel Herculano
- Laboratório de Neuroendocrinologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém/PA, Brazil
- Zebrafish Neuroscience Research Consortium
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34
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Blandina P, Munari L, Giannoni P, Mariottini C, Passani MB. Histamine neuronal system as a therapeutic target for the treatment of cognitive disorders. FUTURE NEUROLOGY 2010. [DOI: 10.2217/fnl.10.30] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Much has been learned over the past 20 years about the role of histamine as a neurotransmitter. This brief article attempts to evaluate the progress accomplished in this field, and discusses the therapeutic potential of the H3 receptor (H3R). All histaminergic neurons are localized in the tuberomammillary nucleus of the posterior hypothalamus and project to almost all regions of the CNS. Histamine exerts its effect via interaction with specific receptors (H1R, H2R, H3R and H4R). Antagonists of both H1R and H2R have been successful as blockbuster drugs for treating allergic conditions and gastric ulcers. H4R is still awaiting better functional characterization, but the H3R is an attractive target for potential therapies of CNS disorders. Indeed, considerable interest was raised by reports that pharmacological blockade of H3Rs exerted procognitive effects in a variety of animal tasks analyzing different types of memory. In addition, blockade of H3Rs increased wakefulness and reduced bodyweight in animal models. Such findings hint at the potential use of H3R antagonists/inverse agonists for the treatment of Alzheimer’s disease and other dementias, attention-deficit hyperactivity disorder, obesity and sleep disorders. As a result, an increasing number of H3R antagonists/inverse agonists progress through the clinic for the treatment of a variety of conditions, including attention-deficit hyperactivity disorder, cognitive disorders, narcolepsy and schizophrenia. Moreover, the use of H3R antagonists/inverse agonists that weaken traumatic memories may alleviate disorders such as post-traumatic stress syndrome, panic attacks, specific phobias and generalized anxiety. The use of H3R ligands for the treatment of neurodegenerative disorders is demonstrated in several studies, indicating a role of the histamine neurons and H3Rs in neuroprotection. Recently, direct evidence demonstrated that histaminergic neurons are organized into functionally distinct circuits, impinging on different brain regions, and displaying selective control mechanisms. This could imply independent functions of subsets of histaminergic neurons according to their respective origin and terminal projections. The possibility that H3Rs control only some of those functions implies that H3R-directed therapies may achieve selective effects, with minimal side effects, and this may increase the interest regarding this class of drugs.
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Affiliation(s)
| | - Leonardo Munari
- Dipartimento di Farmacologia Preclinica e Clinica, Universitá di Firenze, Italy
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35
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Effect of histamine on regional cerebral blood flow of the parietal lobe in rats. Lasers Med Sci 2010; 25:711-7. [PMID: 20428912 DOI: 10.1007/s10103-010-0783-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2009] [Accepted: 03/22/2010] [Indexed: 11/27/2022]
Abstract
Histamine is a powerful modulator that regulates blood vessels and blood flow. The effect of histamine on the extracortical vessels has been well described, while much less is known about the effect of histamine on intracortical vessels. In this study, we investigated the effect of histamine on regional cerebral blood flow in rat parietal lobe with laser Doppler flowmetry. The pharmacological characteristics of distinct ways (intracerebroventricular injection, intraperitoneal injection, and cranial window infusion) in applying histamine to the brain were also obtained and compared. Histamine applied in three ways all produced a decrease of rCBF in parietal lobe in a concentration-dependent manner. Cranial window infusion was the most effective way and intraperitoneal injection of L-histidine was the most ineffective, although it is a simple and applied way. To determine which type of receptor takes part in the vessel contraction induced by histamine, H1 receptor antagonist, diphenhydramine, and H2 receptor antagonist, cimetidine, were applied, respectively, before histamine administration. When the injection of cimetidine was conducted in advance, histamine still resulted in a decrease of infusion amount; while the injection of diphenhydramine was conducted in advance, the infusion of blood amount wasn't changed. These findings indicated that histamine could result in a reduction of rCBF in the rat parietal lobe and this effect of histamine may attribute partly to its combination with H1 receptor.
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Ogawa S, Yanai K, Watanabe T, Wang ZM, Akaike H, Ito Y, Akaike N. Histamine responses of large neostriatal interneurons in histamine H1 and H2 receptor knock-out mice. Brain Res Bull 2008; 78:189-94. [PMID: 19063949 DOI: 10.1016/j.brainresbull.2008.10.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Revised: 10/25/2008] [Accepted: 10/30/2008] [Indexed: 11/26/2022]
Abstract
Histamine (HA) is an important neuro-modulator, contributing to a variety of physiological responses in the mammalian central nervous system (CNS). However there is little information about the cell/signaling mechanism underlying its role. In the present study, we characterized HA responses in single large neostriatal neurons acutely dissociated from wild type (WT) and HA receptor knock-out (KO) mice, with a particular emphasis on identifying the role of HA receptor subtypes. HA (10 microM) and a selective H(2) receptor agonist dimaprit (1 microM) both evoked an inward current in H(1)-KO mice, and HA and a selective H(1) receptor agonist HTMT (10 microM) both evoked an inward current in H(2)-KO mice. In the H(1) and H(2) double (H(1/2)) KO mice, there was no response to either the application of HA or the selective H(1), H(2) receptor agonists. Hence we have confirmed that the targeted genes were indeed absent in these KO mice and that both receptor subtypes contribute to HA's excitatory actions. Furthermore the HA-induced inward currents were mediated by a decrease in current through K(+) channels. In addition, we observed the effects of methamphetamine (METH) on the locomotor activity of WT and HA receptor KO mice, and found that METH-induced behavioral sensitization is evident in H(1/2)-KO mice, but not in H(1)- or H(2)-KO mice. These observations suggest that suppressive roles of HA on methamphetamine-induced behavioral sensitization would be mediated through both H(1) and H(2) receptors in the CNS including neostriatum.
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Affiliation(s)
- Sachie Ogawa
- Research Division for Life Sciences, Kumamoto Health Science University, Kumamoto 861-5598, Japan
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37
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Greferath U, Kambourakis M, Barth C, Fletcher EL, Murphy M. Characterization of histamine projections and their potential cellular targets in the mouse retina. Neuroscience 2008; 158:932-44. [PMID: 19015005 DOI: 10.1016/j.neuroscience.2008.10.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2007] [Revised: 10/14/2008] [Accepted: 10/20/2008] [Indexed: 11/19/2022]
Abstract
The vertebrate retina receives histaminergic input from the brain via retinopetal axons that originate from perikarya in the posterior hypothalamus. In the nervous system, histamine acts on three G-protein-coupled receptors, histamine receptor (HR) 1, HR2 and HR3. In order to look for potential cellular targets of histamine in the mouse retina, we have examined the retina for the expression of histamine and the presence of these three receptors. Consistent with studies of retina from other vertebrates, histamine was only found in retinopetal axons, which coursed extensively through the ganglion cell and inner plexiform layers. mRNA for all three receptors was expressed in the mouse retina, and immunohistochemical studies further localized HR1 and HR2. HR1 immunoreactivity was observed on dopaminergic amacrine cells, calretinin-positive ganglion cells and axon bundles in the ganglion cell layer. Furthermore, a distinct group of processes in the inner plexiform layer was labeled, which most likely represents the processes of cholinergic amacrine cells. HR2 immunoreactivity was observed on the processes and cell bodies of the primary glial cells of the mammalian retina, the Müller cells. This distribution of histamine and its receptors is consistent with a brain-derived source of histamine acting on diverse populations of cells in the retina, including both neurons and glia.
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Affiliation(s)
- U Greferath
- Department of Anatomy and Cell Biology, University of Melbourne, Grattan Street, Melbourne, Victoria 3010, Australia
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38
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Descarries L, Bérubé-Carrière N, Riad M, Bo GD, Mendez JA, Trudeau LÉ. Glutamate in dopamine neurons: Synaptic versus diffuse transmission. ACTA ACUST UNITED AC 2008; 58:290-302. [DOI: 10.1016/j.brainresrev.2007.10.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2007] [Revised: 10/16/2007] [Accepted: 10/18/2007] [Indexed: 10/22/2022]
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39
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Affiliation(s)
- Patrizio Blandina
- Dipartimento di Farmacologia Preclinica e Clinica, Università di Firenze, Italy.
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40
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GASTINGER MATTHEWJ, BARBER ALISTAIRJ, VARDI NOGA, MARSHAK DAVIDW. Histamine receptors in mammalian retinas. J Comp Neurol 2006; 495:658-67. [PMID: 16506196 PMCID: PMC3348866 DOI: 10.1002/cne.20902] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Mammalian retinas are innervated by histaminergic axons that originate from perikarya in the posterior hypothalamus. To identify the targets of these retinopetal axons, we localized histamine receptors (HR) in monkey and rat retinas by light and electron microscopy. In monkeys, puncta containing HR3 were found at the tips of ON-bipolar cell dendrites in cone pedicles and rod spherules, closer to the photoreceptors than the other neurotransmitter receptors. This is the first ultrastructural localization of any histamine receptor and the first direct evidence that HR3 is present on postsynaptic membranes in the central nervous system. In rat retinas, most HR1 were localized to dopaminergic amacrine cells. The differences in histamine receptor localization may reflect the differences in the activity patterns of the two species.
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Affiliation(s)
- MATTHEW J. GASTINGER
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center Houston, Houston, Texas 77225
- Department of Neurobiology and Anatomy, University of Texas Medical School at Houston, Houston, Texas 77225
| | - ALISTAIR J. BARBER
- Penn State Retina Research Group, Department of Ophthalmology, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania 17033
| | - NOGA VARDI
- Department of Neuroscience, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - DAVID W. MARSHAK
- Department of Neurobiology and Anatomy, University of Texas Medical School at Houston, Houston, Texas 77225
- Correspondence to: David W. Marshak, Department of Neurobiology and Anatomy, University of Texas Medical School at Houston, P.O. Box 20708, Houston, TX 77225.
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41
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Adachi N. Cerebral ischemia and brain histamine. ACTA ACUST UNITED AC 2005; 50:275-86. [PMID: 16181682 DOI: 10.1016/j.brainresrev.2005.08.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2005] [Revised: 07/31/2005] [Accepted: 08/02/2005] [Indexed: 10/25/2022]
Abstract
Cerebral ischemia induces excess release of glutamate and an increase in the intracellular Ca(2+) concentration in neurons, which provokes enzymatic process leading to irreversible neuronal injury. Histamine plays a role as a neurotransmitter in the mammalian brain, and histamine release from nerve endings is enhanced in ischemia by facilitation of histaminergic activity. Dissimilar to ischemia-induced release of glutamate, histamine release is gradual and long lasting. The enhancement may contribute to neuroprotection against ischemic damage, because suppression of histaminergic activity aggravates the histologic outcome caused by ischemia. Preischemic administration of histamine (i.c.v.) suppresses ischemic release of glutamate and ameliorates neuronal damage, whereas blockade of central histamine H(2) receptors aggravates ischemic injury. These suggest that histamine provides beneficial effects against ischemic damage through histamine H(2) receptors, when administered before induction of ischemia. Postischemic loading with histidine, a precursor of histamine, alleviates both brain infarction and delayed neuronal death. Since the alleviation is abolished by blockade of central histamine H(2) receptors, facilitation of central histamine H(2) action caused by histidine may prevent reperfusion injury after ischemic events. Because the ischemia-induced increase in the glutamate level rapidly resumes after reperfusion of cerebral blood flow, beneficial effects caused by postischemic loading with histidine may be due to other mechanisms besides suppression of excitatory neurotransmitter release. Anti-inflammatory action by histamine H(2) receptor stimulation is a likely mechanism responsible for the improvement.
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Affiliation(s)
- Naoto Adachi
- Department of Anesthesiology and Resuscitology, Ehime University School of Medicine, Shitsukawa, Touon-shi, Ehime 791-0295, Japan.
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Torrealba F, Carrasco MA. A review on electron microscopy and neurotransmitter systems. ACTA ACUST UNITED AC 2005; 47:5-17. [PMID: 15572159 DOI: 10.1016/j.brainresrev.2004.06.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2004] [Indexed: 10/26/2022]
Abstract
The purpose of this article is to review the contributions of transmission electron microscopy studies to the understanding of brain circuits and neurotransmitter systems. Our views on the microstructure of connections between neurons have gradually changed, and now we recognize that the classical mental image we had on a chemical synapse is no longer applicable to every neuronal connection. We highlight studies that converge to point out that, while the most prevalent fast transmitters in the brain, glutamate and GABA, are stored in small, clear synaptic vesicles (SSV) and released at synapses, neuropeptides are exclusively stored in large dense core vesicles (LDCV) and released extrasynaptically. Amine transmitters are preferentially, but not exclusively, accumulated in LDCV and may be released at synaptic or extrasynaptic sites. We discuss evidence suggesting that axon terminals from pyramidal cortical neurons and dorsal thalamic neurons lack LDCV and therefore could not use neuropeptides as transmitters. This idea fits with the fast, high temporal resolution information processing that characterizes cortical and thalamic function.
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Affiliation(s)
- Fernando Torrealba
- Departamento de Ciencias Fisiológicas, Fac. Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile.
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Miklós IH, Kovács KJ. Functional heterogeneity of the responses of histaminergic neuron subpopulations to various stress challenges. Eur J Neurosci 2004; 18:3069-79. [PMID: 14656302 DOI: 10.1111/j.1460-9568.2003.03033.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In rats, the cell bodies of the histaminergic neuronal system are clustered in five distinct cell groups (E1-E5) within the posterior hypothalamus. On the basis of tract tracing studies, these histaminergic subgroups have been regarded as one functional unit. In addition to its well-characterized role in arousal, locomotor activity, metabolism, feeding, drinking and behaviour, as well as in coordination of autonomic functions, histamine has been implicated in regulation of the hypothalamo-pituitary-adrenocortical axis during stress. To address the capacity of different histaminergic subgroups to respond to various challenges, we revealed c-Fos, the immediate early gene marker of activated neurons, in histamine synthesizing neurons by combining c-Fos immunocytochemistry with in situ hybridization of histidine decarboxylase (HDC) mRNA. Compared to the negligible colocalization of these markers in control rats, restraint, insulin-induced hypoglycaemia and foot shock resulted in specific activation of histamine synthesizing neurons of the E4 and E5 subgroup in the tuberomammillary region. Up to 36% of HDC mRNA-expressing cells show c-Fos immunoreactivity in the E5 region. In addition, some neurons of the E1, E2 and E3 histaminergic groups were activated after restraint stress. Many less c-Fos-positive histaminergic neurons were detected after immobilization and dehydration. Ether stress, acute hyperosmotic stimulus or injection of bacterial lipopolysaccharide did not activate hypothalamic HDC-positive neurons. These results suggest, for the first time, the functional heterogeneity of histaminergic neuron population, the components of which are recruited in a stressor- and subgroup-specific manner.
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MESH Headings
- Animals
- Behavior, Animal
- Cell Count
- Dehydration
- Electroshock
- Histamine/metabolism
- Histidine Decarboxylase/genetics
- Histidine Decarboxylase/metabolism
- History, Ancient
- Hypoglycemia/chemically induced
- Hypoglycemia/metabolism
- Hypoglycemia/physiopathology
- Hypothalamic Area, Lateral/cytology
- Hypothalamic Area, Lateral/metabolism
- Hypothalamic Area, Lateral/physiopathology
- Immobilization
- Immunohistochemistry/methods
- In Situ Hybridization/methods
- Insulin
- Lipopolysaccharides/toxicity
- Male
- Neurons/classification
- Neurons/metabolism
- Paraventricular Hypothalamic Nucleus/cytology
- Paraventricular Hypothalamic Nucleus/metabolism
- Paraventricular Hypothalamic Nucleus/physiopathology
- Proto-Oncogene Proteins c-fos/genetics
- Proto-Oncogene Proteins c-fos/metabolism
- RNA, Messenger/metabolism
- Rats
- Rats, Wistar
- Restraint, Physical/methods
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Saline Solution, Hypertonic/pharmacology
- Stress, Physiological/chemically induced
- Stress, Physiological/metabolism
- Stress, Physiological/physiopathology
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Affiliation(s)
- I H Miklós
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Szigony u. 43. H-1083, Budapest, Hungary
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Hamami G, Adachi N, Liu K, Arai T. Alleviation of ischemic neuronal damage by histamine H2 receptor stimulation in the rat striatum. Eur J Pharmacol 2004; 484:167-73. [PMID: 14744600 DOI: 10.1016/j.ejphar.2003.11.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Transient ischemia was produced for 15 min by occlusion of the middle cerebral artery in halothane-anesthetized rats, and changes in the extracellular concentrations of neurotransmitter monoamines and amino acids were examined in the striatum. The occlusion produced marked increases in the extracellular concentrations of both dopamine and glutamate in the striatum in the saline-injected control group, the peak values being 148 and 5.2 times those before ischemia, respectively. Preischemic administration of histamine (200 nmol, i.c.v.) suppressed the increase in dopamine and glutamate levels during ischemia, the peak values being 38% and 40% of those in the control group, respectively. Neither the dopamine nor glutamate level was affected by 6-[2-(4-imidazolyl)ethylamino]-N-(trifluoromethylphenyl)heptanecarboxamide (HTMT), an H(1) agonist (100 nmol, i.c.v.). However, dimaprit, an H(2) agonist (100 nmol, i.c.v.) suppressed the peak values to 42% and 32%, respectively. Most neurons were degenerated 7 days after ischemia in control animals. Histologic outcome was alleviated by either histamine or dimaprit treatment, whereas HTMT did not affect the outcome. Although postischemic administration of mepyramine, an H(1) antagonist (5 nmol, i.c.v.), did not affect the histologic alleviation caused by preischemic treatment with histamine, ranitidine, an H(2) antagonist (30 nmol, i.c.v.), partly abolished the improvement caused by histamine. These results suggest that suppression of ischemic release of excitatory neurotransmitters by histamine H(2) action is a contributing factor in alleviation of histologic outcome.
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Affiliation(s)
- Gen Hamami
- Department of Anesthesiology and Resuscitology, Ehime University School of Medicine, Shitsukawa, Shigenobu-cho, Onsen-gun, Ehime 791-0295, Japan
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Abstract
Cerebral ischemia induces excess release of glutamate and an increase in the intracellular Ca2+ concentration, which provoke catastrophic enzymatic processes leading to irreversible neuronal injury. Histamine plays the role of neurotransmitter in the central nervous system, and histaminergic fibers are widely distributed in the brain. In cerebral ischemia, release of histamine from nerve endings has been shown to be enhanced by facilitation of its activity. An inhibition of the histaminergic activity in ischemia aggravates the histologic outcome. In contrast, intracerebroventricular administration of histamine improves the aggravation, whereas blockade of histamine H2 receptors aggravates ischemic injury. Furthermore, H2 blockade enhances ischemic release of glutamate and dopamine. These findings suggest that central histamine provides beneficial effects against ischemic neuronal damage by suppressing release of excitatory neurotransmitters. However, histaminergic H2 action facilitates the permeability of the blood-brain barrier and shows deleterious effects on cerebral edema.
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Affiliation(s)
- Naoto Adachi
- Department of Anesthesiology and Resuscitology, Ehime University School of Medicine, Ehime 791-0295, Japan.
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Langlais PJ, McRee RC, Nalwalk JA, Hough LB. Depletion of brain histamine produces regionally selective protection against thiamine deficiency-induced lesions in the rat. Metab Brain Dis 2002; 17:199-210. [PMID: 12322789 DOI: 10.1023/a:1019930206196] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Breakdown of the blood brain barrier and the subsequent accumulation of free radicals, lactate, and glutamate appear to be the immediate causes of thiamine deficiency (TD)-induced damage to thalamus. The mechanisms triggering these events are unknown but recent evidence suggests an important role of histamine. We therefore studied the effects of histamine depletion on thalamic lesions in the pyrithiamine-induced thiamine deficient (PTD) rat. Chronic intracerebroventricular (i.c.v., 7 days) infusion of alpha-fluoromethylhistidine (FMH), combined with bilateral ibotenate destruction of the histamine-containing neurons in the tuberomammillary (TM) nucleus and bolus i.c.v. infusion of 48/80, a potent mast cell degranulating agent, was used to deplete brain histamine levels. PTD rats receiving combined FMH + 48/80 + TM lesions developed acute neurological symptoms, including spontaneous seizures, approximately 1 day earlier than PTD rats treated with i.c.v. infusion of vehicle and sham lesions of the TM. When examined 1 week after restoration of thiamine, the PTD vehicle + sham lesion animals contained severe neuronal loss and gliosis in midline, intralaminar, ventral, lateral, and posterior nuclei. PTD animals treated with FMH + 48/80 + TM lesions had little evidence of neuronal loss or microglial proliferation in thalamus except in the gelatinosus and anteroventral nuclei, in which there was complete neuronal loss. These data demonstrate a significant and regionally selective role of histamine in the development of thalamic lesions in a rat model of Wernicke's encephalopathy. Furthermore, these data suggest either a dissociation between seizures and thalamic lesions or a significant role of histamine in seizure-related damage to the thalamus.
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Affiliation(s)
- Philip J Langlais
- Behavioral Neurobiology Section, Department of Psychology, San Diego State University, California 92182, USA.
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Dai Y, Zhang JH. Manipulation of chloride flux affects histamine-induced contraction in rabbit basilar artery. Am J Physiol Heart Circ Physiol 2002; 282:H1427-36. [PMID: 11893580 DOI: 10.1152/ajpheart.00837.2001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cl(-) efflux induces depolarization and contraction of smooth muscle cells. This study was undertaken to explore the role of Cl(-) flux in histamine-induced contraction in the rabbit basilar artery. Male New Zealand White rabbits (n = 16) weighing 1.8-2.5 kg were euthanized by an overdose of pentobarbital sodium. The basilar arteries were removed for isometric tension recording. Histamine produced a concentration-dependent contraction that was attenuated by the H(1) receptor antagonist chlorpheniramine (10(-8) M) but not by the H(2) receptor antagonist cimetidine (3 x 10(-6) M) in normal Cl(-) Krebs-Henseleit bicarbonate solution (123 mM Cl(-)). The histamine-induced contraction was reduced by the following manipulations: 1) inhibition of Na(+)-K(+)-2Cl(-) cotransporter with bumetanide (3 x 10(-5) and 10(-4) M), 2) bicarbonate-free HEPES solution to disable Cl(-)/HCO exchanger, and 3) blockade of Cl(-) channels with the use of niflumic acid, 5-nitro-2-(3-phenylpropylamino) benzoic acid, and indoleacetic acid 94 R-(+)-methylindazone. In addition, substitution of extracellular Cl(-) (10 mM) with methanesulfonate acid (113 mM) transiently enhanced histamine-induced contraction. Manipulation of Cl(-) flux affects histamine-induced contraction in the rabbit basilar artery.
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Affiliation(s)
- Yun Dai
- Department of Neurosurgery, University of Mississippi Medical Center, Jackson, Mississippi 39216, USA
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Effects of activation of the histaminergic tuberomammillary nucleus on visual responses of neurons in the dorsal lateral geniculate nucleus. J Neurosci 2002. [PMID: 11826138 DOI: 10.1523/jneurosci.22-03-01098.2002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We investigated the effects of the central histaminergic system on afferent sensory signals in the retinogeniculocortical pathway in the intact brain. Extracellular physiological recordings in vivo were obtained from neurons in the cat dorsal lateral geniculate nucleus (LGN) in conjunction with electrical activation of the histamine-containing cells in the tuberomammillary nucleus of the hypothalamus. Tuberomammillary activation resulted in a rapid and significant increase in the amplitude of baseline activity and visual responses in LGN neurons. Geniculate X- and Y-cells were affected similarly. LGN cells that exhibited a burst pattern of activity in the control condition switched to a tonic firing pattern during tuberomammillary activation. Effects on visual response properties were assessed using drifting sinusoidal gratings of varied spatial frequency. The resultant spatial tuning curves were elevated by tuberomammillary activation, but there was no change in tuning curve shape. Rather, the effect was proportionate to the control response, with the greatest tuberomammillary effects at spatial frequencies already optimal for the cell. Tuberomammillary activation caused a small phase lag in the visual response that was similar at all spatial frequencies, consistent with the induced shift from burst to tonic firing mode. These results indicate a significant histaminergic effect on LGN thalamocortical cells, with no clear effect on thalamic inhibitory neurons. The histaminergic system appears to strengthen central transmission of afferent information, intensifying but not transforming the retinally derived signals. Promoting sensory input may be one way in which the histaminergic system plays a role in arousal.
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Adachi N, Terao K, Otsuka R, Arai T. Histaminergic H(2) blockade facilitates ischemic release of dopamine in gerbil striatum. Brain Res 2002; 926:172-5. [PMID: 11814420 DOI: 10.1016/s0006-8993(01)03107-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The blockade of central histaminergic H(2) receptors has been reported to aggravate ischemic neuronal damage. Since excess release of excitatory neurotransmitters is closely related to ischemic neuronal damage, the effects of ranitidine on ischemic release of dopamine were investigated in gerbil striatum. Changes in the extracellular concentration of dopamine produced by transient forebrain ischemia for 4 min were investigated by a microdialysis procedure, and the effect of intracerebroventricular administration of ranitidine (10 nmol) was evaluated. The histologic outcome was examined 7 days after ischemia by light microscopy. Forebrain ischemia produced a marked increase in the dopamine concentration in dialysates, and the level returned to the basal level after reperfusion. The preischemic administration of ranitidine enhanced the increase in the dopamine level during ischemia, and the peak value in the ranitidine group was 203% of that in the saline group. The histologic outcome was aggravated by the ranitidine treatment in the striatum, although aggravation was not observed in the cerebral cortex. The facilitation of the ischemic release of dopamine may be a contributing factor in the aggravation of ischemic damage by H(2) blockade.
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Affiliation(s)
- Naoto Adachi
- Department of Anesthesiology and Resuscitology, Ehime University School of Medicine, Shitsukawa, Shigenobu-cho, Onsen-gun, Ehime, Japan.
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Adachi N, Seyfried FJ, Arai T. Blockade of central histaminergic H2 receptors aggravates ischemic neuronal damage in gerbil hippocampus. Crit Care Med 2001; 29:1189-94. [PMID: 11395601 DOI: 10.1097/00003246-200106000-00021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Histaminergic H2 antagonists have been reported to provoke central nervous system dysfunction in humans. They also aggravate ischemic neuronal damage in experimental animals. Because energy failure and glutamate release are crucial factors in ischemic neuronal damage, the effects of ranitidine on energy state and the extracellular concentration of glutamate were investigated in gerbil brain. DESIGN Prospective, randomized, controlled animal study. SETTING University animal laboratory. SUBJECTS Male Mongolian gerbils. INTERVENTIONS The changes in the direct-current potential shift in the hippocampal CA1 area produced by transient forebrain ischemia for 2.5 mins were compared in gerbils pretreated with saline or ranitidine (10 nmol) intracerebroventricularly. The histologic outcome was evaluated 7 days after ischemia by observing the delayed neuronal death in these animals. In a second study, brain concentrations of adenosine 5'-triphosphate after various durations of decapitation ischemia were determined, and the effect of ranitidine was evaluated. In a third experiment, changes in the extracellular concentrations of excitatory amino acids during forebrain ischemia were examined by a microdialysis procedure. MEASUREMENTS AND MAIN RESULTS The forebrain ischemia produced a sudden shift in the membrane potential 62 +/- 5 secs (mean +/- sd, n = 6) after the start of ischemia. The preischemic administration of ranitidine facilitated onset of depolarization (38 +/- 8 secs; p <.01). The histologic outcome was aggravated by ranitidine (p <.01). Decapitation ischemia reduced brain adenosine 5'-triphosphate concentration rapidly. Ranitidine facilitated the ischemic reduction in adenosine 5'-triphosphate, and the value after 1 min was 55% of that in the corresponding saline group (p <.01). Ranitidine enhanced the ischemic increase in the glutamate concentration, and the peak value in the ranitidine group was 316% of that in the saline group (p <.05). CONCLUSION The deleterious effect of ranitidine on ischemic neuronal damage may involve the increase in the extracellular concentration of glutamate and facilitation of energy depletion in an anaerobic state.
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Affiliation(s)
- N Adachi
- Department of Anesthesiology and Resuscitology, Ehime University School of Medicine, Shitsukawa, Shigenobu-cho, Onsen-gun, Ehime 791-0295, Japan
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