Nicotinic Acetylcholine Receptors
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Clinical Evaluation of Pipecuronium Bromide and Its Comparison With
Scholars Journal of Applied Medical Sciences (SJAMS) ISSN 2320-6691 (Online) Sch. J. App. Med. Sci., 2013; 1(6):943-950 ISSN 2347-954X (Print) ©Scholars Academic and Scientific Publisher (An International Publisher for Academic and Scientific Resources) www.saspublisher.com Research Article Clinical Evaluation of Pipecuronium Bromide and its Comparison with Pancuronium Bromide Kaushal RP Associate Professor, Department of cardiac anesthesia, Gandhi Medical College, Bhopal, India. *Corresponding author Kaushal RP Email: Abstract: The study was carried out to compare the intubating conditions, cardiovascular responses, neuro-muscular blocking properties and reversal characteristics of pipecuronium bromide and pancuronium bromide. This is a prospective hospital based study. 100 patients belonging to ASA grade I or II physical status aged 18 to 70 years were divided into two groups of 50 patients each. Group 1 received pipecuronium bromide in the dose of .08 mg / kg and group 2 patients received pancuronium bromide in dose of 0.1 mg/kg. Each patient was pre medicated uniformly. Time for onset of apnoea for pipecuronium and pancuronium were 91.64+ 3.59 sec. and 118.84 + 12.53 sec. respectively. The mean time for intubation was 126.60 +12.55 sec. and 144.60 + 22.87 sec. with pipecuronium and pancuronium respectively. Mean duration of block for pipecuronium was 78.64 + 8.97 min. the block for pancuronium lasted from +36-40 min with a mean duration of block 41.60+ 5.57 min. The mean duration of maintenance dose in pipecuronium cases was 45.08 + 7.19 min., while it was 27.06 + 5.01 min in pancuronium cases. -
Roger Lee Papke Box 100267 JHM Health Science Center Gainesville, Florida 32610
CURRICULUM VITAE Roger Lee Papke DEPARTMENT OF PHARMACOLOGY AND THERAPEUTICS UNIVERSITY OF FLORIDA SCHOOL OF MEDICINE Box 100267 J.H.M. Health Science Center Gainesville, Florida 32610 (352) 392-4712, FAX (352) 392-9696 [email protected] BIOGRAPHICAL DATA: Born: October 12, 1953, Kenmore, New York Married: December 24, 1980 to Clare Stokes Citizenship: U. S. A. EDUCATION: Starpoint Central School Pendleton, N. Y. Primary and Secondary N.Y.S. Regents Diploma 1971 New York University Washington Square College of Arts and Sciences 1971 - 1975 Majors in Biology and Classical Civilization Bachelor of Arts awarded May 1975 New York University Graduate school of Arts and Sciences 1975 - 1976 Thesis advisor: Dr. Fleur L. Strand Thesis title: An Alpha Adrenergic Response of Cardiac Muscle at an Alkaline pH Master of Science awarded May 1976 Cornell University Graduate School of Arts and Science 1976-1979: Section of Physiology Graduate Research Assistant in Reproductive Physiology Advisor: Dr. William Hansel Research topic: The endocrine control of delayed implantation in mink Cornell University Graduate School of Arts and Science 1979-1986: Section of Neurobiology and Behavior Thesis Advisor: Dr. Robert Oswald Primary research topic: Pharmacology of nicotinic acetylcholine receptors Thesis Title: The Gating of Single Channel Currents Through the Nicotinic Acetylcholine Receptors of BC3H-1 Cells: Effects of Agonists and Allosteric Ligands Ph.D. conferred January 1987 ACADEMIC APPOINTMENTS: 1987 Postdoctoral Research Associate: Department of Pharmacology, -
Differential Effects of Alkaloids on Memory in Rodents
www.nature.com/scientificreports OPEN Diferential efects of alkaloids on memory in rodents Patrick M. Callahan1,2, Alvin V. Terry Jr.1,2, Manuel C. Peitsch3, Julia Hoeng3* & Kyoko Koshibu3* Nicotinic acetylcholine receptors (nAChRs) play a critical role in the neuropharmacology of learning and memory. As such, naturally occurring alkaloids that regulate nAChR activity have gained interest for understanding and potentially improving memory function. In this study, we tested the acute efects of three known nicotinic alkaloids, nicotine, cotinine, and anatabine, in suppressing scopolamine-induced memory defcit in rodents by using two classic memory paradigms, Y-maze and novel object recognition (NOR) in mice and rats, respectively. We found that all compounds were able to suppress scopolamine-induced spatial memory defcit in the Y-maze spontaneous alternation paradigm. However, only nicotine was able to suppress the short-term object memory defcit in NOR, despite the higher doses of cotinine and anatabine used to account for their potential diferences in nAChR activity. These results indicate that cotinine and anatabine can uniquely regulate short-term spatial memory, while nicotine seems to have more robust and general role in memory regulation in rodents. Thus, nAChR-activating alkaloids may possess distinct procognitive properties in rodents, depending on the memory types examined. Te cholinergic system of the brain is a critical regulator of attention, memory, and higher-order cognitive processing, and its defcits are central to the etiology of dementia1. As such, nicotinic acetylcholine receptors (nAChRs) have gained much interest as a target of drug development 2. Neuronal nAChRs are pentameric pro- teins composed of various combinations of α (α2–α9) and β (β2–β4) nAChR subunits, diferentially expressed throughout the nervous system. -
Reversal of Pipecuronium-Induced Moderate Neuromuscular Block with Sugammadex in the Presence of a Sevoflurane Anesthetic: a Randomized Trial
RESEARCH REPORT Reversal of Pipecuronium-Induced Moderate Neuromuscular Block with Sugammadex in the Presence of a Sevoflurane Anesthetic: A Randomized Trial Edömér Tassonyi, MD, PhD, DSc, Adrienn Pongrácz, MD, Réka Nemes, MD, László Asztalos, MD, Szabolcs Lengyel, PhD, DSc, and Béla Fülesdi, MD, PhD, Dsc * * * * BACKGROUND: Pipecuronium† is a steroidal neuromuscular* blocking agent. Sugammadex, a relaxant binding γ-cyclodextrin derivative, reverses the effect of rocuronium, vecuronium, and pancuronium. We investigated whether sugammadex reverses moderate pipecuronium-induced neuromuscular blockade (NMB) and the doses required to achieve reversal. METHODS: This single-center, randomized, double-blind, 5-group parallel-arm study comprised 50 patients undergoing general anesthesia with propofol, sevoflurane, fentanyl, and pipe- curonium. Neuromuscular monitoring was performed with acceleromyography (TOF-Watch SX®) according to international standards. When the NMB recovered spontaneously to train-of-four count 2, patients randomly received 1.0, 2.0, 3.0, or 4.0 mg/kg of sugammadex or placebo. Recovery time from sugammadex injection to normalized train-of-four (TOF) ratio 0.9 was the primary outcome variable. The recovery time from the sugammadex injection to final T1 was the secondary end point. Postoperative neuromuscular functions were also assessed. RESULTS: Each patient who received sugammadex recovered to a normalized TOF ratio of 0.9 within 5.0 minutes (95% lower confidence interval for the lowest dose 70.1%; for all doses 90.8%) and 79% of these patients reached a normalized TOF ratio 0.9 within 2.0 minutes (95% lower confidence interval for the lowest dose 26.7%; for all doses 63.7%). T1 recovered several minutes after the TOF ratio. -
Chemicals in the Fourth Report and Updated Tables Pdf Icon[PDF
Chemicals in the Fourth National Report on Human Exposure to Environmental Chemicals: Updated Tables, March 2021 CDC’s Fourth National Report on Human Exposure to Environmental Chemicals: Updated Tables, March 2021 provides exposure data on the following chemicals or classes of chemicals. The Updated Tables contain cumulative data from national samples collected beginning in 1999–2000 and as recently as 2015-2016. Not all chemicals were measured in each national sample. The data tables are available at https://www.cdc.gov/exposurereport. An asterisk (*) indicates the chemical has been added since publication of the Fourth National Report on Human Exposure to Environmental Chemicals in 2009. Adducts of Hemoglobin Acrylamide Formaldehyde* Glycidamide Tobacco Alkaloids and Metabolites Anabasine* Anatabine* Cotinine Cotinine-n-oxide* Hydroxycotinine* Trans-3’-hydroxycotinine* 1-(3-Pyridyl)-1-butanol-4-carboxylic acid* Nicotine* Nicotine-N’-oxide* Nornicotine* Tobacco-Specific Nitrosamines (TSNAs) N’-Nitrosoanabasine (NAB)* N’-Nitrosoanatabine (NAT)* N’-Nitrosonornicotine (NNN)* Total 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol) (NNAL)* Volatile N-nitrosamines (VNAs) N-Nitrosodiethylamine (NDEA)* N-Nitrosoethylmethylamine (NMEA)* N-Nitrosomorpholine (NMOR)* N-Nitrosopiperidine (NPIP)* N-Nitrosopyrrolidine (NPYR)* Disinfection By-Products Bromodichloromethane Dibromochloromethane Tribromomethane (Bromoform) Trichloromethane (Chloroform) Personal Care and Consumer Product Chemicals and Metabolites Benzophenone-3 Bisphenol A Bisphenol F* Bisphenol -
Federal Register/Vol. 82, No. 13/Monday, January 23, 2017/Proposed Rules
8004 Federal Register / Vol. 82, No. 13 / Monday, January 23, 2017 / Proposed Rules DEPARTMENT OF HEALTH AND comment will be made public, you are www.regulations.gov. Submit both HUMAN SERVICES solely responsible for ensuring that your copies to the Division of Dockets comment does not include any Management. If you do not wish your Food and Drug Administration confidential information that you or a name and contact information to be third party may not wish to be posted, made publicly available, you can 21 CFR Part 1132 such as medical information, your or provide this information on the cover [Docket No. FDA–2016–N–2527] anyone else’s Social Security number, or sheet and not in the body of your confidential business information, such comments and you must identify this Tobacco Product Standard for N- as a manufacturing process. Please note information as ‘‘confidential.’’ Any Nitrosonornicotine Level in Finished that if you include your name, contact information marked as ‘‘confidential’’ Smokeless Tobacco Products information, or other information that will not be disclosed except in identifies you in the body of your accordance with 21 CFR 10.20 and other AGENCY: Food and Drug Administration, comments, that information will be applicable disclosure law. For more HHS. posted on http://www.regulations.gov. information about FDA’s posting of • ACTION: Proposed rule. If you want to submit a comment comments to public dockets, see 80 FR with confidential information that you 56469, September 18, 2015, or access SUMMARY: The Food and Drug do not wish to be made available to the the information at: http://www.fda.gov/ Administration (FDA) is proposing a public, submit the comment as a regulatoryinformation/dockets/ tobacco product standard that would written/paper submission and in the default.htm. -
Molecular Mechanisms Associated with Nicotine Pharmacology and Dependence
Molecular Mechanisms Associated with Nicotine Pharmacology and Dependence Christie D. Fowler, Jill R. Turner, and M. Imad Damaj Contents 1 Introduction 2 Basic Neurocircuitry of Nicotine Addiction 3 Role of Nicotinic Receptors in Nicotine Dependence and Brain Function 4 Modulatory Factors That Influence nAChR Expression and Signaling 5 Genomics and Genetics of Nicotine Dependence 5.1 Overview 5.2 Human and Animal Genetic Studies 5.3 Transcriptionally Adaptive Changes 6 Other Constituents in Nicotine and Tobacco Products Mediating Dependence 7 Therapeutic Approaches for Tobacco and Nicotine Dependence 7.1 Nicotine Replacement Therapies 7.2 Varenicline and Bupropion 7.3 Novel Approaches 8 Conclusion References Abstract Tobacco dependence is a leading cause of preventable disease and death world- wide. Nicotine, the main psychoactive component in tobacco cigarettes, has also C. D. Fowler Department of Neurobiology and Behavior, University of California Irvine, Irvine, CA, USA J. R. Turner Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA M. Imad Damaj (*) Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, USA Translational Research Initiative for Pain and Neuropathy at VCU, Richmond, VA, USA e-mail: [email protected] # Springer Nature Switzerland AG 2019 Handbook of Experimental Pharmacology, https://doi.org/10.1007/164_2019_252 C. D. Fowler et al. been garnering increased popularity in its vaporized form, as derived from e-cigarette devices. Thus, an understanding of the molecular mechanisms under- lying nicotine pharmacology and dependence is required to ascertain novel approaches to treat drug dependence. In this chapter, we review the field’s current understanding of nicotine’s actions in the brain, the neurocircuitry underlying drug dependence, factors that modulate the function of nicotinic acetylcholine receptors, and the role of specific genes in mitigating the vulnerability to develop nicotine dependence. -
Nootropics: Boost Body and Brain? Report #2445
NOOTROPICS: BOOST BODY AND BRAIN? REPORT #2445 BACKGROUND: Nootropics were first discovered in 1960s, and were used to help people with motion sickness and then later were tested for memory enhancement. In 1971, the nootropic drug piracetam was studied to help improve memory. Romanian doctor Corneliu Giurgea was the one to coin the term for this drug: nootropics. His idea after testing piracetam was to use a Greek combination of “nous” meaning mind and “trepein” meaning to bend. Therefore the meaning is literally to bend the mind. Since then, studies on this drug have been done all around the world. One test in particular studied neuroprotective benefits with Alzheimer’s patients. More tests were done with analogues of piracetam and were equally upbeat. This is a small fraction of nootropic drugs studied over the past decade. Studies were done first on animals and rats and later after results from toxicity reports, on willing humans. (Source: https://www.purenootropics.net/general-nootropics/history-of-nootropics/) A COGNITIVE EDGE: Many decades of tests have convinced some people of how important the drugs can be for people who want an enhancement in life. These neuro-enhancing drugs are being used more and more in the modern world. Nootropics come in many forms and the main one is caffeine. Caffeine reduces physical fatigue by stimulating the body’s metabolism. The molecules can pass through the blood brain barrier to affect the neurotransmitters that play a role in inhibition. These molecule messengers can produce muscle relaxation, stress reduction, and onset of sleep. Caffeine is great for short–term focus and alertness, but piracetam is shown to work for long-term memory. -
4695389.Pdf (3.200Mb)
Non-classical amine recognition evolved in a large clade of olfactory receptors The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Li, Qian, Yaw Tachie-Baffour, Zhikai Liu, Maude W Baldwin, Andrew C Kruse, and Stephen D Liberles. 2015. “Non-classical amine recognition evolved in a large clade of olfactory receptors.” eLife 4 (1): e10441. doi:10.7554/eLife.10441. http://dx.doi.org/10.7554/ eLife.10441. Published Version doi:10.7554/eLife.10441 Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:23993622 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#LAA RESEARCH ARTICLE Non-classical amine recognition evolved in a large clade of olfactory receptors Qian Li1, Yaw Tachie-Baffour1, Zhikai Liu1, Maude W Baldwin2, Andrew C Kruse3, Stephen D Liberles1* 1Department of Cell Biology, Harvard Medical School, Boston, United States; 2Department of Organismic and Evolutionary Biology, Museum of Comparative Zoology, Harvard University, Cambridge, United States; 3Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, United States Abstract Biogenic amines are important signaling molecules, and the structural basis for their recognition by G Protein-Coupled Receptors (GPCRs) is well understood. Amines are also potent odors, with some activating olfactory trace amine-associated receptors (TAARs). Here, we report that teleost TAARs evolved a new way to recognize amines in a non-classical orientation. -
Role of Prefrontal Cortex and Cholinergic Modulation in Attentional
Role of prefrontal cortex and cholinergic modulation in attentional performance in rats Beth Mary Fisher Department of Psychology Downing College University of Cambridge September 2017 This dissertation is submitted for the degree of Doctor of Philosophy Declaration This dissertation is the result of my own work and includes nothing which is the outcome of work done in collaboration except as declared in the Preface and specified in the text. It is not substantially the same as any that I have submitted, or, is being concurrently submitted for a degree or diploma or other qualification at the University of Cambridge or any other University or similar institution except as declared in the Preface and specified in the text. I further state that no substantial part of my dissertation has already been submitted, or, is being concurrently submitted for any such degree, diploma or other qualification at the University of Cambridge or any other University or similar institution except as declared in the Preface and specified in the text. It does not exceed the prescribed word limit of the degree committee for the faculty of biology of 60,000 words. i2 Acknowledgements Firstly, I would like to thank my supervisor Tim Bussey and advisor Trevor Robbins for their invaluable support, guidance and encouragement throughout my PhD. Their insightful scientific discussions, passion for the field and praise of me, have shaped me to become a scientist I am proud of, and given me an unknown confidence. Not only are they experts in the field, but they are down to earth, kind and fun. -
Nicotinic Receptors in Neurodegeneration
Send Orders of Reprints at [email protected] 298 Current Neuropharmacology, 2013, 11, 298-314 Nicotinic Receptors in Neurodegeneration Inmaculada Posadas, Beatriz López-Hernández and Valentín Ceña* Unidad Asociada Neurodeath. CSIC-Universidad de Castilla-La Mancha, Departamento de Ciencias Médicas. Albacete, Spain and CIBERNED, Instituto de Salud Carlos III, Spain Abstract: Many studies have focused on expanding our knowledge of the structure and diversity of peripheral and central nicotinic receptors. Nicotinic acetylcholine receptors (nAChRs) are members of the Cys-loop superfamily of pentameric ligand-gated ion channels, which include GABA (A and C), serotonin, and glycine receptors. Currently, 9 alpha (2-10) and 3 beta (2-4) subunits have been identified in the central nervous system (CNS), and these subunits assemble to form a variety of functional nAChRs. The pentameric combination of several alpha and beta subunits leads to a great number of nicotinic receptors that vary in their properties, including their sensitivity to nicotine, permeability to calcium and propensity to desensitize. In the CNS, nAChRs play crucial roles in modulating presynaptic, postsynaptic, and extrasynaptic signaling, and have been found to be involved in a complex range of CNS disorders including Alzheimer’s disease (AD), Parkinson’s disease (PD), schizophrenia, Tourette´s syndrome, anxiety, depression and epilepsy. Therefore, there is growing interest in the development of drugs that modulate nAChR functions with optimal benefits and minimal adverse effects. The present review describes the main characteristics of nAChRs in the CNS and focuses on the various compounds that have been tested and are currently in phase I and phase II trials for the treatment of neurodegenerative diseases including PD, AD and age-associated memory and mild cognitive impairment. -
(19) United States (12) Patent Application Publication (10) Pub
US 20130289061A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2013/0289061 A1 Bhide et al. (43) Pub. Date: Oct. 31, 2013 (54) METHODS AND COMPOSITIONS TO Publication Classi?cation PREVENT ADDICTION (51) Int. Cl. (71) Applicant: The General Hospital Corporation, A61K 31/485 (2006-01) Boston’ MA (Us) A61K 31/4458 (2006.01) (52) U.S. Cl. (72) Inventors: Pradeep G. Bhide; Peabody, MA (US); CPC """"" " A61K31/485 (201301); ‘4161223011? Jmm‘“ Zhu’ Ansm’ MA. (Us); USPC ......... .. 514/282; 514/317; 514/654; 514/618; Thomas J. Spencer; Carhsle; MA (US); 514/279 Joseph Biederman; Brookline; MA (Us) (57) ABSTRACT Disclosed herein is a method of reducing or preventing the development of aversion to a CNS stimulant in a subject (21) App1_ NO_; 13/924,815 comprising; administering a therapeutic amount of the neu rological stimulant and administering an antagonist of the kappa opioid receptor; to thereby reduce or prevent the devel - . opment of aversion to the CNS stimulant in the subject. Also (22) Flled' Jun‘ 24’ 2013 disclosed is a method of reducing or preventing the develop ment of addiction to a CNS stimulant in a subj ect; comprising; _ _ administering the CNS stimulant and administering a mu Related U‘s‘ Apphcatlon Data opioid receptor antagonist to thereby reduce or prevent the (63) Continuation of application NO 13/389,959, ?led on development of addiction to the CNS stimulant in the subject. Apt 27’ 2012’ ?led as application NO_ PCT/US2010/ Also disclosed are pharmaceutical compositions comprising 045486 on Aug' 13 2010' a central nervous system stimulant and an opioid receptor ’ antagonist.