2003 AAZV Proceedings.Pdf
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Veterinary Emergency & Anaesthesia Pfizer
AVA ECVA & AVEF Thank all their sponsors for this spring edition PARIS 2007 On VETERINARY EMERGENCY & ANAESTHESIA PFIZER MERIAL FORT DODGE BAYER BOEHRINGER MEDISUR COVETO OPTOMED HALLOWELL SCIL JANSSEN SOGEVAL KRUSSE TECHNIBELT MILA TEM The Organisatiors 7th AVEF European Meeting- 10th March 2007-ROISSY 2 AVA – ECVA Spring Meeting 2007 on Veterinary Emergency & Anesthesia 7 – 10 March 2007, Paris, France AVA PARIS 2007 — Wednesday March 7th RESIDENT DAY RUMINANT ANAESTHESIA Hyatt Regency Hotel, Roissy CDG, France K OTTO, D HOLOPHERNE, G TOUZOT 8.30 REGISTRATIONS 9.00-9.45 Specific anatomo-physiology to consider for ruminant peri-anaesthetic period K OTTO 10.00-10.30 COFFEE BREAK 10.30-11.15 Post-anaesthetic and pain management in ruminants K OTTO 11.30-12.15 Physical restraint and sedation of ruminants D HOLOPHERNE 12.30-1.30 LUNCH 1.30-2.15 Anaesthesia of Lamas & Alpagas G TOUZOT 2.30-3.15 Regional & local anaesthesia for ruminants D HOLOPHERNE 3.30-4.00 COFFEE BREAK 4.00-4.45 Pharmacology and protocols for ruminant anaesthesia G TOUZOT AVA-ECVA PARIS 2007, Veterinary Emergency & Anaesthesia, 7-10th March AVA-ECVA PARIS 2007, Veterinary Emergency & Anaesthesia, 7-10th March AVA – ECVA Spring Meeting 2007 on Veterinary Emergency & Anesthesia 7 – 10 March 2007, Paris, France Specific anatomo-physiology to consider for ruminants peri-anaesthetic period Klaus A. Otto Institut für Versuchstierkunde und Zentrales Tierlaboratorium, Medizinische Hochschule Hannover, D-30623 Hannover, Germany The suborder “ruminantia” includes members of the family “bovidae” such as cattle (bos taurus), sheep (ovis spp) and goats (capra spp). Members of the family “camelidae” (camelus spp, llama spp, vicugna spp) belong to the suborder “tylopodia” and therefore are not true ruminants. -
Characterization of a Domoic Acid Binding Site from Pacific Razor Clam
Aquatic Toxicology 69 (2004) 125–132 Characterization of a domoic acid binding site from Pacific razor clam Vera L. Trainer∗, Brian D. Bill NOAA Fisheries, Northwest Fisheries Science Center, Marine Biotoxin Program, 2725 Montlake Blvd. E., Seattle, WA 98112, USA Received 5 November 2003; received in revised form 27 April 2004; accepted 27 April 2004 Abstract The Pacific razor clam, Siliqua patula, is known to retain domoic acid, a water-soluble glutamate receptor agonist produced by diatoms of the genus Pseudo-nitzschia. The mechanism by which razor clams tolerate high levels of the toxin, domoic acid, in their tissues while still retaining normal nerve function is unknown. In our study, a domoic acid binding site was solubilized from razor clam siphon using a combination of Triton X-100 and digitonin. In a Scatchard analysis using [3H]kainic acid, the partially-purified membrane showed two distinct receptor sites, a high affinity, low capacity site with a KD (mean ± S.E.) of 28 ± 9.4 nM and a maximal binding capacity of 12 ± 3.8 pmol/mg protein and a low affinity, high capacity site with a mM affinity for radiolabeled kainic acid, the latter site which was lost upon solubilization. Competition experiments showed that the rank order potency for competitive ligands in displacing [3H]kainate binding from the membrane-bound receptors was quisqualate > ibotenate > iodowillardiine = AMPA = fluorowillardiine > domoate > kainate > l-glutamate. At high micromolar concentrations, NBQX, NMDA and ATPA showed little or no ability to displace [3H]kainate. In contrast, Scatchard analysis 3 using [ H]glutamate showed linearity, indicating the presence of a single binding site with a KD and Bmax of 500 ± 50 nM and 14 ± 0.8 pmol/mg protein, respectively. -
Six Domoic Acid Related Compounds from the Red Alga, Chondria Armata
www.nature.com/scientificreports OPEN Six domoic acid related compounds from the red alga, Chondria armata, and domoic acid biosynthesis Received: 1 September 2017 Accepted: 15 December 2017 by the diatom, Pseudo-nitzschia Published: xx xx xxxx multiseries Yukari Maeno1, Yuichi Kotaki2, Ryuta Terada3, Yuko Cho1, Keiichi Konoki1 & Mari Yotsu-Yamashita1 Domoic acid (DA, 1), a potent neurotoxin that causes amnesic shellfsh poisoning, has been found in diatoms and red algae. While biosynthetic pathway towards DA from geranyl diphosphate and l-glutamate has been previously proposed, its late stage is still unclear. Here, six novel DA related compounds, 7′-methyl-isodomoic acid A (2) and B (3), N-geranyl-l-glutamic acid (4), 7′-hydroxymethyl- isodomoic acid A (5) and B (6), and N-geranyl-3(R)-hydroxy-l-glutamic acid (7), were isolated from the red alga, Chondria armata, and their structures were determined. The compounds 4 and 7, linear compounds, are predictable as the precursors to form the DA pyrrolidine ring. The compounds 2 and 3 are thought as the cyclized products of 7; therefore, dehydration and electron transfer from the internal olefn of 7 is a possible mechanism for the pyrrolidine ring formation. One terminal methyl group of the side chain of 2 and 3 is predicted to be oxidized to hydroxymethyl (5, 6), and then to carboxylic acids, forming isodomoic acids A and B. Finally, the terminal olefn of isodomoic acid A would be isomerized to form DA. In addition, [15N, D]-labeled 4 was incorporated into DA using the diatom, Pseudo-nitzschia multiseries, demonstrating that 4 is the genuine precursor of DA. -
Birds of Gunung Tambora, Sumbawa, Indonesia: Effects of Altitude, the 1815 Cataclysmic Volcanic Eruption and Trade
FORKTAIL 18 (2002): 49–61 Birds of Gunung Tambora, Sumbawa, Indonesia: effects of altitude, the 1815 cataclysmic volcanic eruption and trade COLIN R. TRAINOR In June-July 2000, a 10-day avifaunal survey on Gunung Tambora (2,850 m, site of the greatest volcanic eruption in recorded history), revealed an extraordinary mountain with a rather ordinary Sumbawan avifauna: low in total species number, with all species except two oriental montane specialists (Sunda Bush Warbler Cettia vulcania and Lesser Shortwing Brachypteryx leucophrys) occurring widely elsewhere on Sumbawa. Only 11 of 19 restricted-range bird species known for Sumbawa were recorded, with several exceptional absences speculated to result from the eruption. These included: Flores Green Pigeon Treron floris, Russet-capped Tesia Tesia everetti, Bare-throated Whistler Pachycephala nudigula, Flame-breasted Sunbird Nectarinia solaris, Yellow-browed White- eye Lophozosterops superciliaris and Scaly-crowned Honeyeater Lichmera lombokia. All 11 resticted- range species occurred at 1,200-1,600 m, and ten were found above 1,600 m, highlighting the conservation significance of hill and montane habitat. Populations of the Yellow-crested Cockatoo Cacatua sulphurea, Hill Myna Gracula religiosa, Chestnut-backed Thrush Zoothera dohertyi and Chestnut-capped Thrush Zoothera interpres have been greatly reduced by bird trade and hunting in the Tambora Important Bird Area, as has occurred through much of Nusa Tenggara. ‘in its fury, the eruption spared, of the inhabitants, not a although in other places some vegetation had re- single person, of the fauna, not a worm, of the flora, not a established (Vetter 1820 quoted in de Jong Boers 1995). blade of grass’ Francis (1831) in de Jong Boers (1995), Nine years after the eruption the former kingdoms of referring to the 1815 Tambora eruption. -
Evaluating the Translational Potential of Progesterone Treatment Following
Wong et al. BMC Neuroscience 2014, 15:131 http://www.biomedcentral.com/1471-2202/15/131 RESEARCH ARTICLE Open Access Evaluating the translational potential of progesterone treatment following transient cerebral ischaemia in male mice Raymond Wong1, Claire L Gibson2*, David A Kendall3 and Philip MW Bath1 Abstract Background: Progesterone is neuroprotective in numerous preclinical CNS injury models including cerebral ischaemia. The aim of this study was two-fold; firstly, we aimed to determine whether progesterone delivery via osmotic mini-pump would confer neuroprotective effects and whether such neuroprotection could be produced in co-morbid animals. Results: Animals underwent transient middle cerebral artery occlusion. At the onset of reperfusion, mice were injected intraperitoneally with progesterone (8 mg/kg in dimethylsulfoxide). Adult and aged C57 Bl/6 mice were dosed additionally with subcutaneous infusion (1.0 μl/h of a 50 mg/ml progesterone solution) via implanted osmotic minipumps. Mice were allowed to survive for up to 7 days post-ischaemia and assessed for general well-being (mass loss and survival), neurological score, foot fault and t-maze performance. Progesterone reduced neurological deficit [F(1,2) = 5.38, P = 0.027] and number of contralateral foot-faults [F(1,2) = 7.36, P = 0.0108] in adult, but not aged animals, following ischaemia. In hypertensive animals, progesterone treatment lowered neurological deficit [F(1,6) = 18.31, P = 0.0001], reduced contralateral/ipsilateral alternation ratio % [F(1,2) = 17.05, P = 0.0006] and time taken to complete trials [F(1,2) = 15.92, P = 0.0009] for t-maze. Conclusion: Post-ischemic progesterone administration via mini-pump delivery is effective in conferring functional improvement in a transient MCAO model in adult mice. -
Amnesic Shellfish Poisoning: Emergency Medical Management
nce: Res ie ea c rc S h e & n i Schroeder et al., J Marine Sci Res Dev 2015, 6:1 D r e Journal of a v M DOI; 10.4172/2155-9910.1000179 e f l o o p l m a ISSN:n 2155-9910 e r n u t o J Marine Science: Research & Development ResearchShort Communication Article OpenOpen Access Access Amnesic Shellfish Poisoning: Emergency Medical Management George Schroeder1*, Stephen S. Bates2 and John Spallino3 1American Academy of Urgent Care Medicine 2813 Hiawassee Road, Suite 206 Orlando, FL USA 32835 2Fisheries and Oceans Canada Gulf Fisheries Centre P.O. Box 5030 Moncton, NB E1C 9B6, Canada 3Laser Spine Institute 3001 N Rocky Point Dr. # 185 Tampa, FL 33607 USA Keywords: Amnesic shellfish poisoning; Diatom; Domoic acid; Blooms of toxigenic Pseudo-nitzschia have become more prevalent Excitotoxicity; Neurotoxin; Pseudo-nitzschia along coastal waters worldwide. The 2015 toxic bloom along the entire west coast of North America resulted in numerous harvesting closures Introduction and human health concerns. It is not known why this diatom produces Human consumption of shellfish and certain finfish contaminated domoic acid, as this biotoxin does not appear to harm its immediate with the neurotoxin domoic acid causes Amnesic Shellfish Poisoning predators. (ASP), a syndrome that results in preventable morbidity and mortality Humans become poisoned after consuming molluscan shellfish [1-5]. Although the incidence of ASP is rare around the world due to (e.g., mussels, clams, oysters, scallops, cockles) that have filtered the careful monitoring by government agencies since the original incident toxic diatom cells out of the water, therefore concentrating the toxin in in 1987, patients can still present with clinical symptoms (Table 1) that their digestive system (Figure 2). -
Lesser Sundas and Remote Moluccas
ISLANDS OF THE LESSER SUNDAS AND REMOTE MOLUCCAS 12 August – 7 October 2009 and 27 October - 7 November 2009 George Wagner [email protected] ISLANDS VISITED: Bali, Sumba, Timor, Flores, Komoto, Ambon, Tanimbars, Kais, Seram and Buru INTRODUCTION Indonesia, being a nation of islands, contains over 350 endemic species of birds. Of those, over 100 are only found in the Lesser Sundas and remote Moluccas. Having visited Indonesia in past years, I knew it to be safe and cheap for independent birders like myself. I decided to dedicate some four months to the process of birding these remote destinations. Richard Hopf, whom I have joined on other trips, also expressed interest in such a venture, at least for the Lesser Sundas. We started planning a trip for July 2009. Much of the most recent information in the birding public domain was in the form of tour trip reports, which are self- serving and don’t impart much information about specific sites or logistics. There are a few exceptions and one outstanding one is the trip report by Henk Hendriks for the Lesser Sundas (2008). It has all the information that anyone might need when planning such a trip, including maps. We followed it religiously and I would encourage others to consult it before all others. My modest contribution in the form of this trip report is to simply offer an independent approach to visiting some of the most out of the ordinary birding sites in the world. It became clear from the beginning that the best approach was simply to go and make arrangements along the way. -
Endangered Species
Not logged in Talk Contributions Create account Log in Article Talk Read Edit View history Endangered species From Wikipedia, the free encyclopedia Main page Contents For other uses, see Endangered species (disambiguation). Featured content "Endangered" redirects here. For other uses, see Endangered (disambiguation). Current events An endangered species is a species which has been categorized as likely to become Random article Conservation status extinct . Endangered (EN), as categorized by the International Union for Conservation of Donate to Wikipedia by IUCN Red List category Wikipedia store Nature (IUCN) Red List, is the second most severe conservation status for wild populations in the IUCN's schema after Critically Endangered (CR). Interaction In 2012, the IUCN Red List featured 3079 animal and 2655 plant species as endangered (EN) Help worldwide.[1] The figures for 1998 were, respectively, 1102 and 1197. About Wikipedia Community portal Many nations have laws that protect conservation-reliant species: for example, forbidding Recent changes hunting , restricting land development or creating preserves. Population numbers, trends and Contact page species' conservation status can be found in the lists of organisms by population. Tools Extinct Contents [hide] What links here Extinct (EX) (list) 1 Conservation status Related changes Extinct in the Wild (EW) (list) 2 IUCN Red List Upload file [7] Threatened Special pages 2.1 Criteria for 'Endangered (EN)' Critically Endangered (CR) (list) Permanent link 3 Endangered species in the United -
Pharmacology – Inhalant Anesthetics
Pharmacology- Inhalant Anesthetics Lyon Lee DVM PhD DACVA Introduction • Maintenance of general anesthesia is primarily carried out using inhalation anesthetics, although intravenous anesthetics may be used for short procedures. • Inhalation anesthetics provide quicker changes of anesthetic depth than injectable anesthetics, and reversal of central nervous depression is more readily achieved, explaining for its popularity in prolonged anesthesia (less risk of overdosing, less accumulation and quicker recovery) (see table 1) Table 1. Comparison of inhalant and injectable anesthetics Inhalant Technique Injectable Technique Expensive Equipment Cheap (needles, syringes) Patent Airway and high O2 Not necessarily Better control of anesthetic depth Once given, suffer the consequences Ease of elimination (ventilation) Only through metabolism & Excretion Pollution No • Commonly administered inhalant anesthetics include volatile liquids such as isoflurane, halothane, sevoflurane and desflurane, and inorganic gas, nitrous oxide (N2O). Except N2O, these volatile anesthetics are chemically ‘halogenated hydrocarbons’ and all are closely related. • Physical characteristics of volatile anesthetics govern their clinical effects and practicality associated with their use. Table 2. Physical characteristics of some volatile anesthetic agents. (MAC is for man) Name partition coefficient. boiling point MAC % blood /gas oil/gas (deg=C) Nitrous oxide 0.47 1.4 -89 105 Cyclopropane 0.55 11.5 -34 9.2 Halothane 2.4 220 50.2 0.75 Methoxyflurane 11.0 950 104.7 0.2 Enflurane 1.9 98 56.5 1.68 Isoflurane 1.4 97 48.5 1.15 Sevoflurane 0.6 53 58.5 2.5 Desflurane 0.42 18.7 25 5.72 Diethyl ether 12 65 34.6 1.92 Chloroform 8 400 61.2 0.77 Trichloroethylene 9 714 86.7 0.23 • The volatile anesthetics are administered as vapors after their evaporization in devices known as vaporizers. -
A Human Stem Cell-Derived Test System for Agents Modifying Neuronal N
Archives of Toxicology (2021) 95:1703–1722 https://doi.org/10.1007/s00204-021-03024-0 IN VITRO SYSTEMS A human stem cell‑derived test system for agents modifying neuronal 2+ N‑methyl‑D‑aspartate‑type glutamate receptor Ca ‑signalling Stefanie Klima1,2 · Markus Brüll1 · Anna‑Sophie Spreng1,3 · Ilinca Suciu1,3 · Tjalda Falt1 · Jens C. Schwamborn4 · Tanja Waldmann1 · Christiaan Karreman1 · Marcel Leist1,5 Received: 28 October 2020 / Accepted: 4 March 2021 / Published online: 13 March 2021 © The Author(s) 2021 Abstract Methods to assess neuronal receptor functions are needed in toxicology and for drug development. Human-based test systems that allow studies on glutamate signalling are still scarce. To address this issue, we developed and characterized pluripotent stem cell (PSC)-based neural cultures capable of forming a functional network. Starting from a stably proliferating neu- roepithelial stem cell (NESC) population, we generate “mixed cortical cultures” (MCC) within 24 days. Characterization by immunocytochemistry, gene expression profling and functional tests (multi-electrode arrays) showed that MCC contain various functional neurotransmitter receptors, and in particular, the N-methyl-D-aspartate subtype of ionotropic glutamate receptors (NMDA-R). As this important receptor is found neither on conventional neural cell lines nor on most stem cell- derived neurons, we focused here on the characterization of rapid glutamate-triggered Ca2+ signalling. Changes of the intra- 2+ cellular free calcium ion concentration ([Ca ]i) were measured by fuorescent imaging as the main endpoint, and a method to evaluate and quantify signals in hundreds of cells at the same time was developed. We observed responses to glutamate in the low µM range. -
Intravenous Palonosetron Increases the Incidence of Qtc Prolongation During Sevoflurane General Anesthesia for Laparotomy
Korean J Anesthesiol 2013 November 65(5): 397-402 Clinical Research Article http://dx.doi.org/10.4097/kjae.2013.65.5.397 Intravenous palonosetron increases the incidence of QTc prolongation during sevoflurane general anesthesia for laparotomy Jeong Jin Min, Yongjae Yoo, Tae Kyong Kim, and Jung-Man Lee Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea Background: Palonosetron is a recently introduced 5-hydroxytryptamine-3 (5-HT3) receptor antagonist useful for postoperative nausea and vomiting prophylaxis. However, 5-HT3 receptor antagonists increase the corrected QT (QTc) interval in patients who undergo general anesthesia. This retrospective study was performed to evaluate whether palono- setron would induce a QTc prolongation in patients undergoing general anesthesia with sevoflurane. Methods: We reviewed a database of 81 patients who underwent general anesthesia with sevoflurane. We divided the records into palonosetron (n = 41) and control (n = 40) groups according to the use of intraoperative palonosetron, and analyzed the electrocardiographic data before anesthesia and 30, 60, 90, and 120 min after skin incision. Changes in the QTc interval from baseline, mean blood pressure, heart rate, body temperature, and sevoflurane concentrations at each time point were compared between the two groups. Results: The QTc intervals at skin incision, and 30, 60, 90, and 120 min after the skin incision during general anesthesia were significantly longer than those at baseline in the two groups (P < 0.001). The changes in the QTc intervals were not different between the two groups (P = 0.41). However, six patients in the palonosetron group showed a QTc interval > 500 ms 30 min after skin incision, whereas no patient did in the control group (P = 0.01). -
Antibacterial Effect of Sevoflurane and Isoflurane Ángel Martínez-Monsalve3 María Dolores Crespo- Sánchez1
Original María Martínez-Serrano1 Manuel Gerónimo-Pardo2 Antibacterial effect of sevoflurane and isoflurane Ángel Martínez-Monsalve3 María Dolores Crespo- Sánchez1 1Servicio de Microbiología y Parasitología. Complejo Hospitalario Universitario de Albacete. 2Servicio de Anestesiología y Reanimación. Complejo Hospitalario Universitario de Albacete. 3Servicio de Cirugía Vascular. Complejo Hospitalario Universitario de Albacete. ABSTRACT property in vivo. This might then allow these agents to be con- sidered as rescue treatment against multidrug resistant patho- Introduction. Multidrug resistant bacteria are increasing gens, including a topical use in infected wounds. worldwide and therapeutic options are limited. Some anaes- Key words: Sevoflurane, Isoflurane, Anaesthetics, Inhala- thetics have shown antibacterial activity before. In this study, tion, Anti-Infective Agents. we have investigated the antibacterial effect of the halogen- ated anaesthetic agents sevoflurane and isoflurane against a range of resistant pathogens. Actividad antibacteriana de sevoflurano e Methods. Two experiments were conducted. In the first, isoflurano bacterial suspensions of both ATCC and resistant strains of Staphylococcus aureus, Escherichia coli and Pseudomonas RESUMEN aeruginosa were exposed to liquid sevoflurane and isoflurane during 15, 30 and 60 minutes. In the second experiment clinical Introducción. Las bacterias multirresistentes están au- resistant strains of E. coli, Klebsiella pneumoniae, Enterobac- mentando en todo el mundo y las opciones terapéuticas son ter cloacae, P. aeruginosa, Acinetobacter baumannii, S. aureus, limitadas. Algunos anestésicos han mostrado actividad an- and Enterococcus faecium were studied. Previously inoculated tibacteriana previamente. En este estudio hemos investigado agar plates were irrigated with the halogenated anaesthet- dicha actividad en los anestésicos halogenados sevoflurano e ic agents and these were left to evaporate before the plates isoflurano frente a un grupo de patógenos resistentes.