“Role of TRPA1 and TRPV1 in Propofol Induced Vasodilation”
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1 TRP About Online
a TR P to Spain International Workshop on Transient Receptor Potential Channels 12th – 14th September 2012 Valencia, Spain www.trp2012.com SCHEDULE and ABSTRACTS BOOK September 2012 Dear participants, Travelling to faraway places in search of spiritual or cultural enlightenment is a millennium old human activity. In their travels, pilgrims brought with them news, foods, music and traditions from distant lands. This friendly exchange led to the cultural enrichment of visitors and the economic flourishing of places, now iconic, such as Rome, Santiago, Jerusalem, Mecca, Varanasi or Angkor Thom. The dissemination of science and technology also benefited greatly from these travels to remote locations. The new pilgrims of the Transient Receptor Potential (TRP) community are also very fond of travelling. In the past years they have gathered at various locations around the globe: Breckenridge (USA), Eilat (Israel), Stockholm (Sweden) and Leuven (Belgium) come to mind. These meetings, each different and exciting, have been very important for the dissemination of TRP research. We are happy to welcome you in Valencia (Spain) for TRP2012. The response to our call has been extraordinary, surpassing all our expectations. The speakers, the modern bards, readily attended our request to communicate their new results. At last count we were already more than 170 participants, many of them students, and most presenting their recent work in the form of posters or short oral presentations. At least 25 countries are sending TRP ambassadors to Valencia, making this a truly international meeting. We like to thank the staff of the Cátedra Santiago Grisolía, Fundación Ciudad de las Artes y las Ciencias for their dedication and excellence in handling the administrative details of the workshop. -
Therapeutic Targets for the Treatment of Chronic Cough
Therapeutic Targets for the Treatment of Chronic Cough Roe, N., Lundy, F., Litherland, G. J., & McGarvey, L. (2019). Therapeutic Targets for the Treatment of Chronic Cough. Current Otorhinolaryngology Reports. https://doi.org/10.1007/s40136-019-00239-9 Published in: Current Otorhinolaryngology Reports Document Version: Publisher's PDF, also known as Version of record Queen's University Belfast - Research Portal: Link to publication record in Queen's University Belfast Research Portal Publisher rights Copyright 2019 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policy The Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. If you discover content in the Research Portal that you believe breaches copyright or violates any law, please contact [email protected]. Download date:25. Sep. 2021 Current Otorhinolaryngology Reports https://doi.org/10.1007/s40136-019-00239-9 CHRONIC COUGH (K ALTMAN, SECTION EDITOR) Therapeutic Targets for the Treatment of Chronic Cough N. -
Therapeutic Targets for the Treatment of Chronic Cough
Current Otorhinolaryngology Reports https://doi.org/10.1007/s40136-019-00239-9 CHRONIC COUGH (K ALTMAN, SECTION EDITOR) Therapeutic Targets for the Treatment of Chronic Cough N. A. Roe1 & F. T. Lundy1 & G. J. Litherland2 & L. P. A. McGarvey1 # The Author(s) 2019 Abstract Purpose of Review Chronic cough, defined in adults as one lasting longer than 8 weeks, is among the commonest clinical problems encountered by doctors both in general practice and in hospital. It can exist as a distinct clinical problem or as a prominent and troublesome symptom for patients with common pulmonary conditions including asthma, chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis. Recent Findings Chronic cough impacts considerably on patients’ daily-life activities and many patients are left frustrated by what they see as a complete lack of awareness among their doctors as how to treat their condition. Some of this arises from limited levels of physician knowledge about managing cough as a clinical problem but also because there are no very effective treatments that specifically target cough. Summary In this article, we review the current clinical thinking regarding cough and the treatments that are currently used and those undergoing clinical development. Keywords Cough . Cough receptor . Pharmacological targets . Novel . Ion channel Introduction and is likely due to a slowly resolving post-viral cough. In adult patients, a cough persisting for more than 8 weeks is Under normal physiological circumstances, coughing occurs termed ‘chronic’ and can occur as an isolated clinical problem with the primary purpose of protecting the lung from inhaled or associated with common respiratory and non-respiratory irritants and clearing unwanted airway secretions. -
The TRPV4 Agonist GSK1016790A Regulates the Membrane Expression of TRPV4 Channels
ORIGINAL RESEARCH published: 23 January 2019 doi: 10.3389/fphar.2019.00006 The TRPV4 Agonist GSK1016790A Regulates the Membrane Expression of TRPV4 Channels Sara Baratchi 1*, Peter Keov 1,2,3, William G. Darby 1, Austin Lai 1, Khashayar Khoshmanesh 4, Peter Thurgood 4, Parisa Vahidi 1, Karin Ejendal 5 and Peter McIntyre 1 1 School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia, 2 Molecular Pharmacology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia, 3 St Vincent’s Clinical School, University of New South Wales, Darlinghurst, NSW, Australia, 4 School of Engineering, RMIT University, Melbourne, VIC, Australia, 5 Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, United States TRPV4 is a non-selective cation channel that tunes the function of different tissues including the vascular endothelium, lung, chondrocytes, and neurons. GSK1016790A is the selective and potent agonist of TRPV4 and a pharmacological tool that is used to study the TRPV4 physiological function in vitro and in vivo. It remains unknown how the sensitivity of TRPV4 to this agonist is regulated. The spatial and temporal dynamics of receptors are the major determinants of cellular responses to stimuli. Membrane Edited by: Hugues Abriel, translocation has been shown to control the response of several members of the transient University of Bern, Switzerland receptor potential (TRP) family of ion channels to different stimuli. Here, we show that 2+ Reviewed by: TRPV4 stimulation with GSK1016790A caused an increase in [Ca ]i that is stable for Osama F. Harraz, a few minutes. Single molecule analysis of TRPV4 channels showed that the density University of Vermont, United States Irene Frischauf, of TRPV4 at the plasma membrane is controlled through two modes of membrane Johannes Kepler University of Linz, trafficking, complete, and partial vesicular fusion. -
Penitrem and Thomitrem Formation by Penicillium Crustosum
Mycopathologia 157: 349–357, 2004. 349 © 2004 Kluwer Academic Publishers. Printed in the Netherlands. Penitrem and thomitrem formation by Penicillium crustosum Thomas Rundberget1, Ida Skaar1, Oloff O’Brien2 & Arne Flåøyen1 1National Veterinary Institute, PO Box 8156 Dep., 0033 Oslo, Norway; 2ARC Plant Protection, Research Institute, Private Bag X134, Pretoria 0001, South Africa Received 9 September 2002; accepted in final form 16 July 2003 Abstract The levels of penitrems A, B, C, D, E, F, roquefortine C and thomitrem A and E recovered from extracts of 36 Norwegian, 2 American and one each of Japanese, German, South African, Danish and Fijian isolates of Penicillum crustosum Thom were quantitatively determined using high performance liquid chromatography-mass spectrometry (HPLC-MS). Forty-two of the 44 isolates of penitrem-producing isolates grown on rice, afforded levels of thomitrem A and E comparable to that of penitrem A. Thomitrems A and E were also found, but at lower levels, when cultures were grown on barley. No thomitrems were found when the isolates were grown on liquid media. The effects of time and temperature on mycotoxin formation were studied on rice over a 4 week period at 10, 15 and 25 ◦C, respectively. No mycotoxins could be detected after 1 week at 10 ◦C, but after 2 weeks at 10 ◦C levels were similar to those produced at 15 and 25 ◦C. Higher levels of thomitrems A and E were detected when media were maintained at lower pH. The possibility that thomitrems A and E might be derived by acid promoted conversion of penitrems A and E was explored in stability trials performed at pH 2, 3, 4, 5 and 7 in the presence and absence of media. -
(BK) Channel Antagonist Penitrem a As a Novel Breast Cancer-Targeted Therapeutic
marine drugs Article The Maxi-K (BK) Channel Antagonist Penitrem A as a Novel Breast Cancer-Targeted Therapeutic Amira A. Goda 1, Abu Bakar Siddique 1 ID , Mohamed Mohyeldin 1,3, Nehad M. Ayoub 2 ID and Khalid A. El Sayed 1,* ID 1 Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA; [email protected] (A.A.G.); [email protected] (A.B.S.); [email protected] (M.M.) 2 Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan; [email protected] 3 Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt * Correspondence: [email protected]; Tel.: +1-318-342-1725 Received: 6 April 2018; Accepted: 9 May 2018; Published: 11 May 2018 Abstract: Breast cancer (BC) is a heterogeneous disease with different molecular subtypes. The high conductance calcium-activated potassium channels (BK, Maxi-K channels) play an important role in the survival of some BC phenotypes, via membrane hyperpolarization and regulation of cell cycle. BK channels have been implicated in BC cell proliferation and invasion. Penitrems are indole diterpene alkaloids produced by various terrestrial and marine Penicillium species. Penitrem A (1) is a selective BK channel antagonist with reported antiproliferative and anti-invasive activities against multiple malignancies, including BC. This study reports the high expression of BK channel in different BC subtypes. In silico BK channel binding affinity correlates with the antiproliferative activities of selected penitrem analogs. 1 showed the best binding fitting at multiple BK channel crystal structures, targeting the calcium-sensing aspartic acid moieties at the calcium bowel and calcium binding sites. -
Veterinary Toxicology
GINTARAS DAUNORAS VETERINARY TOXICOLOGY Lecture notes and classes works Study kit for LUHS Veterinary Faculty Foreign Students LSMU LEIDYBOS NAMAI, KAUNAS 2012 Lietuvos sveikatos moksl ų universitetas Veterinarijos akademija Neužkre čiam ųjų lig ų katedra Gintaras Daunoras VETERINARIN Ė TOKSIKOLOGIJA Paskait ų konspektai ir praktikos darb ų aprašai Mokomoji knyga LSMU Veterinarijos fakulteto užsienio studentams LSMU LEIDYBOS NAMAI, KAUNAS 2012 UDK Dau Apsvarstyta: LSMU VA Veterinarijos fakulteto Neužkre čiam ųjų lig ų katedros pos ėdyje, 2012 m. rugs ėjo 20 d., protokolo Nr. 01 LSMU VA Veterinarijos fakulteto tarybos pos ėdyje, 2012 m. rugs ėjo 28 d., protokolo Nr. 08 Recenzavo: doc. dr. Alius Pockevi čius LSMU VA Užkre čiam ųjų lig ų katedra dr. Aidas Grigonis LSMU VA Neužkre čiam ųjų lig ų katedra CONTENTS Introduction ……………………………………………………………………………………… 7 SECTION I. Lecture notes ………………………………………………………………………. 8 1. GENERAL VETERINARY TOXICOLOGY ……….……………………………………….. 8 1.1. Veterinary toxicology aims and tasks ……………………………………………………... 8 1.2. EC and Lithuanian legal documents for hazardous substances and pollution ……………. 11 1.3. Classification of poisons ……………………………………………………………………. 12 1.4. Chemicals classification and labelling ……………………………………………………… 14 2. Toxicokinetics ………………………………………………………………………...………. 15 2.2. Migration of substances through biological membranes …………………………………… 15 2.3. ADME notion ………………………………………………………………………………. 15 2.4. Possibilities of poisons entering into an animal body and methods of absorption ……… 16 2.5. Poison distribution -
Note: the Letters 'F' and 'T' Following the Locators Refers to Figures and Tables
Index Note: The letters ‘f’ and ‘t’ following the locators refers to figures and tables cited in the text. A Acyl-lipid desaturas, 455 AA, see Arachidonic acid (AA) Adenophostin A, 71, 72t aa, see Amino acid (aa) Adenosine 5-diphosphoribose, 65, 789 AACOCF3, see Arachidonyl trifluoromethyl Adlea, 651 ketone (AACOCF3) ADP, 4t, 10, 155, 597, 598f, 599, 602, 669, α1A-adrenoceptor antagonist prazosin, 711t, 814–815, 890 553 ADPKD, see Autosomal dominant polycystic aa 723–928 fragment, 19 kidney disease (ADPKD) aa 839–873 fragment, 17, 19 ADPKD-causing mutations Aβ, see Amyloid β-peptide (Aβ) PKD1 ABC protein, see ATP-binding cassette protein L4224P, 17 (ABC transporter) R4227X, 17 Abeele, F. V., 715 TRPP2 Abbott Laboratories, 645 E837X, 17 ACA, see N-(p-amylcinnamoyl)anthranilic R742X, 17 acid (ACA) R807X, 17 Acetaldehyde, 68t, 69 R872X, 17 Acetic acid-induced nociceptive response, ADPR, see ADP-ribose (ADPR) 50 ADP-ribose (ADPR), 99, 112–113, 113f, Acetylcholine-secreting sympathetic neuron, 380–382, 464, 534–536, 535f, 179 537f, 538, 711t, 712–713, Acetylsalicylic acid, 49t, 55 717, 770, 784, 789, 816–820, Acrolein, 67t, 69, 867, 971–972 885 Acrosome reaction, 125, 130, 301, 325, β-Adrenergic agonists, 740 578, 881–882, 885, 888–889, α2 Adrenoreceptor, 49t, 55, 188 891–895 Adult polycystic kidney disease (ADPKD), Actinopterigy, 223 1023 Activation gate, 485–486 Aframomum daniellii (aframodial), 46t, 52 Leu681, amino acid residue, 485–486 Aframomum melegueta (Melegueta pepper), Tyr671, ion pathway, 486 45t, 51, 70 Acute myeloid leukaemia and myelodysplastic Agelenopsis aperta (American funnel web syndrome (AML/MDS), 949 spider), 48t, 54 Acylated phloroglucinol hyperforin, 71 Agonist-dependent vasorelaxation, 378 Acylation, 96 Ahern, G. -
Transient Receptor Potential Vanilloid 4 Channel Deficiency Aggravates Tubular Damage After Acute Renal Ischaemia Reperfusion
www.nature.com/scientificreports OPEN Transient Receptor Potential Vanilloid 4 Channel Defciency Aggravates Tubular Damage after Received: 29 March 2017 Accepted: 5 March 2018 Acute Renal Ischaemia Reperfusion Published: xx xx xxxx Marwan Mannaa1, Lajos Markó2, András Balogh2,3,4, Emilia Vigolo5, Gabriele N’diaye2, Mario Kaßmann1, Laura Michalick6, Ulrike Weichelt6, Kai M. Schmidt–Ott5, Wolfgang B. Liedtke7, Yu Huang8,9, Dominik N. Müller 2,5, Wolfgang M. Kuebler6 & Maik Gollasch1,2 Transient receptor potential vanilloid 4 (TRPV4) cation channels are functional in all renal vascular segments and mediate endothelium-dependent vasorelaxation. Moreover, they are expressed in distinct parts of the tubular system and activated by cell swelling. Ischaemia/reperfusion injury (IRI) is characterized by tubular injury and endothelial dysfunction. Therefore, we hypothesised a putative organ protective role of TRPV4 in acute renal IRI. IRI was induced in TRPV4 defcient (Trpv4 KO) and wild–type (WT) control mice by clipping the left renal pedicle after right–sided nephrectomy. Serum creatinine level was higher in Trpv4 KO mice 6 and 24 hours after ischaemia compared to WT mice. Detailed histological analysis revealed that IRI caused aggravated renal tubular damage in Trpv4 KO mice, especially in the renal cortex. Immunohistological and functional assessment confrmed TRPV4 expression in proximal tubular cells. Furthermore, the tubular damage could be attributed to enhanced necrosis rather than apoptosis. Surprisingly, the percentage of infltrating granulocytes and macrophages were comparable in IRI–damaged kidneys of Trpv4 KO and WT mice. The present results suggest a renoprotective role of TRPV4 during acute renal IRI. Further studies using cell–specifc TRPV4 defcient mice are needed to clarify cellular mechanisms of TRPV4 in IRI. -
TRP CHANNELS AS THERAPEUTIC TARGETS TRP CHANNELS AS THERAPEUTIC TARGETS from Basic Science to Clinical Use
TRP CHANNELS AS THERAPEUTIC TARGETS TRP CHANNELS AS THERAPEUTIC TARGETS From Basic Science to Clinical Use Edited by ARPAD SZALLASI MD, PHD Department of Pathology, Monmouth Medical Center, Long Branch, NJ, USA AMSTERDAM • BOSTON • HEIDELBERG • LONDON NEW YORK • OXFORD • PARIS • SAN DIEGO SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Academic Press is an imprint of Elsevier Academic Press is an imprint of Elsevier 125 London Wall, London, EC2Y 5AS, UK 525 B Street, Suite 1800, San Diego, CA 92101-4495, USA 225 Wyman Street, Waltham, MA 02451, USA The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, UK First published 2015 Copyright © 2015 Elsevier Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Details on how to seek permission, further information about the Publisher’s permissions policies and our arrangement with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/permissions This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information, methods, compounds, or experiments described herein. -
Application Note Activation and Inhibition of TRPV4 Using Different
Channel: hTRPV4 Application Note Cells: CHO Tools: Port-a-Patch Activation and inhibition of TRPV4 using different stimuli on the Port-a-Patch The electrophysiology team at Nanion Technologies GmbH, Munich. Summary Results TRPV4 is a member of the transient receptor potential TRPV4 can be activated by a number of stimuli, includ- channel (TRP) family. Transient receptor potential vanilloid ing warm temperature >27°C6,7. We activated hTRPV4 type 4 (TRPV4) shares approximately 40% identity with expressed in CHO cells using heated solution at 45°C. TRPV1 and TRPV21 and is a Ca2+-permeable non-selective There was some basal activity of TRPV4 at room tempera- cation channel1-3 expressed in a wide range of tissues ture but the current amplitude increased to 5.7 ± 0.8 nA including neurons of the central and peripheral nervous (n = 6) from control current of 2.7 ± 0.6 nM (n = 6; p<0.01, systems, and in non-neuronal tissue including human T Student’s t test). Figure 1 shows the activation of TRPV4 by cells, corneal and retinal epithelial cells, endothelial cells warm solution from an example cell and the timecourse of the eye, liver, heart, kidney, synoviocytes, epithelial of the experiment. lining of trachea and lung airways, stellate cells of the A RT pancreas, and many more2. TRPV4 is activated by a 45°C number of stimuli including endogenous ligands such as lipid arachidonic acid and its metabolites4, synthetic ligands such as GSK1016790A5, warm temperature >27- 35°C6,7, hypotonic extracellular solution (cell swelling)1,8, and mechanical stress2. Given its widespread distribution in many organs, this suggests that TRPV4 plays a major role in many physiological processes2,9. -
Tremorgenic Mycotoxin Intoxication by Mary M
Tremorgenic mycotoxin intoxication by Mary M. Schell, DVM Dogs allowed to roam or get into the trash may ingest tremorgenic mycotoxins, which are neorotoxins that produce varying degrees of muscle tremors or seizures that can last for hours or days. Since 1998, the ASPCA Animal Poison Control Center (APCC) has consulted on 25 cases of suspected tremorgenic mycotoxin intoxication in dogs and one in a squirrel. Sources of tremorgenic mycotoxins for household pets have included moldy dairy foods, moldy walnuts or peanuts, stored grains, and moldy spaghetti. 1-7 These toxic secondary metabolites of many fungi vary in quantity and in their ability to produce clinical effects. Toxin production depends on seasonal growing conditions as well as the genus and species of the mold. At least 20 mycotoxins have been identified as tremorgens (compounds capable of inducing serious muscle tremor in one or more vertebrates), although only a few have been shown to have clinical relevance.3,8 Penicillium species are most often incriminated in producing tremorgenic mycotoxins; the most common are penitrem-A and roquefortine C.1,3,6,8 Intoxication with these mycotoxins has been documented in many animals, including dogs, cattle, sheep, rabbits, poultry, and rodents. Several mechanisms of action have been proposed, and the mechanism may vary both between toxins and the individual susceptible species. Penitrem-A inhibits the inhibitory neurotransmitter glycine in mice. Studies in mice have shown that drugs such as mephenesin or nalorphine, which increase glycine