04A-Agents of Synaptic Transmission
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Neurotransmitter Resource Guide
NEUROTRANSMITTER RESOURCE GUIDE Science + Insight doctorsdata.com Doctor’s Data, Inc. Neurotransmitter RESOURCE GUIDE Table of Contents Sample Report Sample Report ........................................................................................................................................................................... 1 Analyte Considerations Phenylethylamine (B-phenylethylamine or PEA) ................................................................................................. 1 Tyrosine .......................................................................................................................................................................................... 3 Tyramine ........................................................................................................................................................................................4 Dopamine .....................................................................................................................................................................................6 3, 4-Dihydroxyphenylacetic Acid (DOPAC) ............................................................................................................... 7 3-Methoxytyramine (3-MT) ............................................................................................................................................... 9 Norepinephrine ........................................................................................................................................................................ -
Review Paper Monoamine Oxidase Inhibitors: a Review Concerning Dietary Tyramine and Drug Interactions
PsychoTropical Commentaries (2016) 1:1 – 90 © Fernwell Publications Review Paper Monoamine Oxidase Inhibitors: a Review Concerning Dietary Tyramine and Drug Interactions PK Gillman PsychoTropical Research, Bucasia, Queensland, Australia Abstract This comprehensive monograph surveys original data on the subject of both dietary tyramine and drug interactions relevant to Monoamine Oxidase Inhibitors (MAOIs), about which there is much outdated, incorrect and incomplete information in the medical literature and elsewhere. Fewer foods than previously supposed have problematically high tyramine levels because international food hygiene regulations have improved both production and handling. Cheese is the only food that has, in the past, been associated with documented fatalities from hypertension, and now almost all ‘supermarket’ cheeses are perfectly safe in healthy-sized portions. The variability of sensitivity to tyramine between individuals, and the sometimes unpredictable amount of tyramine content in foods, means a little knowledge and care are still advised. The interactions between MAOIs and other drugs are now well understood, are quite straightforward, and are briefly summarized here (by a recognised expert). MAOIs have no apparently clinically relevant pharmaco-kinetic interactions, and the only significant pharmaco-dynamic interaction, other than the ‘cheese reaction’ (caused by indirect sympatho-mimetic activity [ISA], is serotonin toxicity ST (aka serotonin syndrome) which is now well defined and straightforward to avoid by not co-administering any drug with serotonin re-uptake inhibitor (SRI) potency. There are no therapeutically used drugs, other than SRIs, that are capable of inducing serious ST with MAOIs. Anaesthesia is not contra- indicated if a patient is taking MAOIs. Most of the previously held concerns about MAOIs turn out to be mythical: they are either incorrect, or over-rated in importance, or stem from apprehensions born out of insufficient knowledge. -
S41598-021-90243-1.Pdf
www.nature.com/scientificreports OPEN Metabolomics and computational analysis of the role of monoamine oxidase activity in delirium and SARS‑COV‑2 infection Miroslava Cuperlovic‑Culf1,2*, Emma L. Cunningham3, Hossen Teimoorinia4, Anuradha Surendra1, Xiaobei Pan5, Stefany A. L. Bennett2,6, Mijin Jung5, Bernadette McGuiness3, Anthony Peter Passmore3, David Beverland7 & Brian D. Green5* Delirium is an acute change in attention and cognition occurring in ~ 65% of severe SARS‑CoV‑2 cases. It is also common following surgery and an indicator of brain vulnerability and risk for the development of dementia. In this work we analyzed the underlying role of metabolism in delirium‑ susceptibility in the postoperative setting using metabolomic profling of cerebrospinal fuid and blood taken from the same patients prior to planned orthopaedic surgery. Distance correlation analysis and Random Forest (RF) feature selection were used to determine changes in metabolic networks. We found signifcant concentration diferences in several amino acids, acylcarnitines and polyamines linking delirium‑prone patients to known factors in Alzheimer’s disease such as monoamine oxidase B (MAOB) protein. Subsequent computational structural comparison between MAOB and angiotensin converting enzyme 2 as well as protein–protein docking analysis showed that there potentially is strong binding of SARS‑CoV‑2 spike protein to MAOB. The possibility that SARS‑CoV‑2 infuences MAOB activity leading to the observed neurological and platelet‑based complications of SARS‑CoV‑2 infection requires further investigation. COVID-19 is an ongoing major global health emergency caused by severe acute respiratory syndrome coro- navirus SARS-CoV-2. Patients admitted to hospital with COVID-19 show a range of features including fever, anosmia, acute respiratory failure, kidney failure and gastrointestinal issues and the death rate of infected patients is estimated at 2.2%1. -
The Effects of Phenelzine and Other Monoamine Oxidase Inhibitor
British Journal of Phammcology (1995) 114. 837-845 B 1995 Stockton Press All rights reserved 0007-1188/95 $9.00 The effects of phenelzine and other monoamine oxidase inhibitor antidepressants on brain and liver 12 imidazoline-preferring receptors Regina Alemany, Gabriel Olmos & 'Jesu's A. Garcia-Sevilla Laboratory of Neuropharmacology, Department of Fundamental Biology and Health Sciences, University of the Balearic Islands, E-07071 Palma de Mallorca, Spain 1 The binding of [3H]-idazoxan in the presence of 106 M (-)-adrenaline was used to quantitate 12 imidazoline-preferring receptors in the rat brain and liver after chronic treatment with various irre- versible and reversible monoamine oxidase (MAO) inhibitors. 2 Chronic treatment (7-14 days) with the irreversible MAO inhibitors, phenelzine (1-20 mg kg-', i.p.), isocarboxazid (10 mg kg-', i.p.), clorgyline (3 mg kg-', i.p.) and tranylcypromine (10mg kg-', i.p.) markedly decreased (21-71%) the density of 12 imidazoline-preferring receptors in the rat brain and liver. In contrast, chronic treatment (7 days) with the reversible MAO-A inhibitors, moclobemide (1 and 10 mg kg-', i.p.) or chlordimeform (10 mg kg-', i.p.) or with the reversible MAO-B inhibitor Ro 16-6491 (1 and 10 mg kg-', i.p.) did not alter the density of 12 imidazoline-preferring receptors in the rat brain and liver; except for the higher dose of Ro 16-6491 which only decreased the density of these putative receptors in the liver (38%). 3 In vitro, phenelzine, clorgyline, 3-phenylpropargylamine, tranylcypromine and chlordimeform dis- placed the binding of [3H]-idazoxan to brain and liver I2 imidazoline-preferring receptors from two distinct binding sites. -
Catecholamine Levels and Activity of Monoamine Oxidase in Some Hypothalamic Structures and in the Pineal Gland of Sheep After Administration of FSH
Physiol. Res. 45:131-136, 1996 Catecholamine Levels and Activity of Monoamine Oxidase in Some Hypothalamic Structures and in the Pineal Gland of Sheep after Administration of FSH B. PASTOROVA, J. VARADY Department of Comparative Physiology , University of Veterinary Medicine, Kosice, Slovak Republic Receded March 6, 1995 Accepted November 13, 1995 Summary The influence of hormonal preparations of FSH in a dose of 24 mg (480 IU) on levels of catecholamine (dopamine, norepinephrine and epinephrine) and the activity of their degradation enzyme monoamine oxidase (MAO) in the hypothalamic regions regulating the reproductive system of sheep (area preoptica, eminentia mediana, corpus mamillare) and pineal gland were investigated in the ocstrous period employing radiochemical methods. The administration of FSH resulted in significant (p<0.001) increases of dopamine levels in the area preoptica and corpus mamillare of the hypothalamus of sheep as compared to control groups with synchronized oestrus. Hormonal stimulation with FSH increased the levels of hypothalamic norepinephrine in the areas studied and these differences were significant in the eminentia mediana (p<0.05) and corpus mamillare (p<0.05). Significant (p<0.001) changes in epinephrine levels were found in the corpus mamillare and area preoptica (p<0.05). Our results indicate that the administration of FSH caused the most pronounced decrease of MAO activity in corpus mamillare (p<0.001). The pineal gland reacted to the hormonal preparation by decreased levels of norepinephrine and dopamine (p<0.001) and by an increase in MAO activity (p<0.01). We suggest that FSH administration affects catecholamine levels and the activity of monoamine oxidase in the studied areas of the brain of sheep by means of a feedback mechanism. -
Food and Mood: Eating Plants to Fight the Blues P H Y S I C I a N S C O M M I T T E E F O R R E S P O N S I B L E M E D I C I N E 5 1 0 0 W I S C O N S I N a V E., N
Food and Mood: Eating Plants to Fight the Blues P H Y S I C I A N S C O M M I T T E E F O R R E S P O N S I B L E M E D I C I N E 5 1 0 0 W I S C O N S I N A V E., N. W., S U I T E 4 0 0 • W A S H I N G T O N, D C 2 0 0 1 6 P H O N E ( 2 0 2 ) 6 8 6 - 2 2 1 0 • F A X ( 2 0 2 ) 6 8 6 - 2 2 1 6 • P C R M @ P C R M . O R G • W W W . PHYSICIANSCOMMITTEE . O R G suffering from depression have elevated levels of an enzyme called monoamine oxidase (MAO).4 This enzyme breaks down serotonin, dopamine, and norepinephrine—neurotransmitters which help regulate mood. High MAO levels lead to low levels of these specific neurotransmitters, causing depression. The phytochemical quercetin, found only in plant foods, acts as an MAO inhibitor.5 Working much like a natural antidepressant, quercetin can increase the amount of serotonin, dopamine, and norepinephrine in the brain. Foods with high levels of quercetin include apples, kale, berries, grapes, onion, and green tea.6 Arachidonic acid, a type of fat found only in animals, serves as a precursor to inflammatory chemicals in our bodies. By eating foods high in arachidonic acid, such as chicken, eggs, and other animal products, we set off a cascade of chemical reactions in our body. -
Biogenic Amine Reference Materials
Biogenic Amine reference materials Epinephrine (adrenaline), Vanillylmandelic acid (VMA) and homovanillic norepinephrine (noradrenaline) and acid (HVA) are end products of catecholamine metabolism. Increased urinary excretion of VMA dopamine are a group of biogenic and HVA is a diagnostic marker for neuroblastoma, amines known as catecholamines. one of the most common solid cancers in early childhood. They are produced mainly by the chromaffin cells in the medulla of the adrenal gland. Under The biogenic amine, serotonin, is a neurotransmitter normal circumstances catecholamines cause in the central nervous system. A number of disorders general physiological changes that prepare the are associated with pathological changes in body for fight-or-flight. However, significantly serotonin concentrations. Serotonin deficiency is raised levels of catecholamines and their primary related to depression, schizophrenia and Parkinson’s metabolites ‘metanephrines’ (metanephrine, disease. Serotonin excess on the other hand is normetanephrine, and 3-methoxytyramine) are attributed to carcinoid tumours. The determination used diagnostically as markers for the presence of of serotonin or its metabolite 5-hydroxyindoleacetic a pheochromocytoma, a neuroendocrine tumor of acid (5-HIAA) is a standard diagnostic test when the adrenal medulla. carcinoid syndrome is suspected. LGC Quality - ISO Guide 34 • GMP/GLP • ISO 9001 • ISO/IEC 17025 • ISO/IEC 17043 Reference materials Product code Description Pack size Epinephrines and metabolites TRC-E588585 (±)-Epinephrine -
Plasma Dopamine-Beta-Hydroxylase and Platelet Monoamine Oxidase
Plasma dopamine-beta-hydroxylase and platelet monoamine oxidase activities in pigs with different susceptibility to the malignant hyperthermia syndrome induced by halothane R. Dantzer, F. Hatey, R. M. Bluthé To cite this version: R. Dantzer, F. Hatey, R. M. Bluthé. Plasma dopamine-beta-hydroxylase and platelet monoamine oxidase activities in pigs with different susceptibility to the malignant hyperthermia syndrome induced by halothane. Reproduction Nutrition Développement, 1981, 21 (1), pp.103-108. hal-00897802 HAL Id: hal-00897802 https://hal.archives-ouvertes.fr/hal-00897802 Submitted on 1 Jan 1981 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Plasma dopamine-beta-hydroxylase and platelet monoamine oxidase activities in pigs with different susceptibility to the malignant hyperthermia syndrome induced by halothane R. DANTZER F. HATEY R. M. BLUTHÉ Station de Pharmacologie, LN.R.A., 180, Chemin de Tournefeuille, 31300 Toulouse, France. Summary. Plasma DBH and platelet MAO activities were measured by radioenzymatic assay in 10 Large-White and 20 Piétrain pigs 9 to 11 weeks old. Pi6train pigs within the same litter, challenged by halothane, were classifed as malignant hyperthermia (MH) susceptible or not according to their reaction. -
Hormonal Regulation of Oligodendrogenesis I: Effects Across the Lifespan
biomolecules Review Hormonal Regulation of Oligodendrogenesis I: Effects across the Lifespan Kimberly L. P. Long 1,*,†,‡ , Jocelyn M. Breton 1,‡,§ , Matthew K. Barraza 2 , Olga S. Perloff 3 and Daniela Kaufer 1,4,5 1 Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA; [email protected] (J.M.B.); [email protected] (D.K.) 2 Department of Molecular and Cellular Biology, University of California, Berkeley, CA 94720, USA; [email protected] 3 Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA 94143, USA; [email protected] 4 Department of Integrative Biology, University of California, Berkeley, CA 94720, USA 5 Canadian Institute for Advanced Research, Toronto, ON M5G 1M1, Canada * Correspondence: [email protected] † Current address: Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA 94143, USA. ‡ These authors contributed equally to this work. § Current address: Department of Psychiatry, Columbia University, New York, NY 10027, USA. Abstract: The brain’s capacity to respond to changing environments via hormonal signaling is critical to fine-tuned function. An emerging body of literature highlights a role for myelin plasticity as a prominent type of experience-dependent plasticity in the adult brain. Myelin plasticity is driven by oligodendrocytes (OLs) and their precursor cells (OPCs). OPC differentiation regulates the trajectory of myelin production throughout development, and importantly, OPCs maintain the ability to proliferate and generate new OLs throughout adulthood. The process of oligodendrogenesis, Citation: Long, K.L.P.; Breton, J.M.; the‘creation of new OLs, can be dramatically influenced during early development and in adulthood Barraza, M.K.; Perloff, O.S.; Kaufer, D. -
Differential Inhibition of Neuronal and Extraneuronal Monoamine Oxidase Graeme Eisenhofer, Ph.D., Jacques W
Differential Inhibition of Neuronal and Extraneuronal Monoamine Oxidase Graeme Eisenhofer, Ph.D., Jacques W. M. Lenders, M.D., Ph.D., Judith Harvey-White, B.S., Monique Ernst, M.D., Ph.D., Alan Zametkin, M.O., Dennis L. Murphy, M.O., and Irwin J. Kopin, M.D. Tiiis study examined wlzetlzcr tile neuronal and 1-dcprcnyl tlzan with dcbrisoquin (255'¼, compared to a cxtmneuronal sites of action of two 1110110a111i11e oxidase 27% increase). Tlze comparable decreases in plasma (MAO) inlzibitors, 1-deprenyl and debrisoq11i11, could be concentrations of DHPG indicate a similar inhibition of disti11g11islzcd by their effects 011 plasma concentrations of intmncuronal MAO by both drugs. Much larger increases cateclw/a111ine metabolites. Plas111a co11centratio11s of tlzc in 110m1ct11nephrine after 1-deprenyl than after debrisoquin i11tra11euro11al dea111inatcd metabolite of" 11orepi11eplzrine, arc consistent with a site of action of the latter drug directed diiiydroxypiienylglycol WHPG), were decreased by 77'½, at the neuronal rather than the extraneuronal compartment. after debrisoquin and by 64'½, after l-dcpm1yl ad111i11istmtio11. Thus, differential changes in deaminated and O-methylated Plasma conccntmtions of the extmneuronal O-111etlzyl11tcd 11111i11c metabolites allm:us identification of neuronal and 111etabolitc of 11orcpineplzri11e, normctaneplzrine, were extra neuronal sites of action of MAO inhibitors. incrrnsed s11bst11ntiall11 more during treatment zpitfz [Neuropsychopharmacology 15:296-301, 1996] KEY IVORDS: Monoa111inc oxidase; Monomnine oxidase a family with an X-linked point mutation of the MAO-A inhibitors; Catec/10/11mi11es; Met11bolis111; Norcpincplzrine; gene where afflicted males exhibit impaired impulse Non11et1111cpl1ri11c control provides the most compelling evidence for a The monoamine oxidases (MAO) A and B catalyze the role of MAO in the expression of behavior (Brunner et deamination of biogenic amines and represent targets al. -
The Activation of Α1-Adrenoceptors Is Implicated in the Antidepressant-Like Effect of Creatine in the Tail Suspension Test
CORE Metadata, citation and similar papers at core.ac.uk Provided by Elsevier - Publisher Connector Progress in Neuro-Psychopharmacology & Biological Psychiatry 44 (2013) 39–50 Contents lists available at SciVerse ScienceDirect Progress in Neuro-Psychopharmacology & Biological Psychiatry journal homepage: www.elsevier.com/locate/pnp The activation of α1-adrenoceptors is implicated in the antidepressant-like effect of creatine in the tail suspension test Mauricio P. Cunha, Francis L. Pazini, Ágatha Oliveira, Luis E.B. Bettio, Julia M. Rosa, Daniele G. Machado, Ana Lúcia S. Rodrigues ⁎ Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, SC, Brazil article info abstract Article history: The antidepressant-like activity of creatine in the tail suspension test (TST) was demonstrated previously by Received 5 September 2012 our group. In this study we investigated the involvement of the noradrenergic system in the Received in revised form 8 January 2013 antidepressant-like effect of creatine in the mouse TST. In the first set of experiments, creatine administered Accepted 18 January 2013 by i.c.v. route (1 μg/site) decreased the immobility time in the TST, suggesting the central effect of this com- Available online 26 January 2013 pound. The anti-immobility effect of peripheral administration of creatine (1 mg/kg, p.o.) was prevented by the pretreatment of mice with α-methyl-p-tyrosine (100 mg/kg, i.p., inhibitor of tyrosine hydroxylase), Keywords: α α Antidepressant prazosin -
Tyrosine Hydroxylase Inhibition in Substantia Nigra Decreases Movement Frequency
Molecular Neurobiology (2019) 56:2728–2740 https://doi.org/10.1007/s12035-018-1256-9 Tyrosine Hydroxylase Inhibition in Substantia Nigra Decreases Movement Frequency Michael F. Salvatore1 & Tamara R. McInnis1 & Mark A. Cantu1 & Deana M. Apple2 & Brandon S. Pruett3,4 Received: 23 May 2018 /Accepted: 17 July 2018 /Published online: 28 July 2018 # Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract Reduced movement frequency or physical activity (bradykinesia) occurs with high prevalence in the elderly. However, loss of striatal tyrosine hydroxylase (TH) in aging humans, non-human primates, or rodents does not reach the ~ 80% loss threshold associated with bradykinesia onset in Parkinson’s disease. Moderate striatal dopamine (DA) loss, either following TH inhibition or decreased TH expression, may not affect movement frequency. In contrast, moderate DA or TH loss in the substantia nigra (SN), as occurs in aging, is of similar magnitude (~ 40%) to nigral TH loss at bradykinesia onset in Parkinson’sdisease.Inaged rats, increased TH expression and DA in SN alone increases movement frequency, suggesting aging-related TH and DA loss in the SN contributes to aging-related bradykinesia or decreased physical activity. To test this hypothesis, the SN was targeted with bilateral guide cannula in young (6 months old) rats, in a within-subjects design, to evaluate the impact of nigral TH inhibition on movement frequency and speed. The TH inhibitor, α-methyl-p-tyrosine (AMPT) reduced nigral DA (~ 40%) 45–150 min following infusion, without affecting DA in striatum, nucleus accumbens, or adjacent ventral tegmental area. Locomotor activity in the open-field was recorded up to 3 h following nigral saline or AMPT infusion in each test subject.