Problems of Drug Dependence 1999: Proceedings of the 61St Annual Scientific Meeting the College on Problems
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Drug Development for the Irritable Bowel Syndrome: Current Challenges and Future Perspectives
REVIEW ARTICLE published: 01 February 2013 doi: 10.3389/fphar.2013.00007 Drug development for the irritable bowel syndrome: current challenges and future perspectives Fabrizio De Ponti* Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy Edited by: Medications are frequently used for the treatment of patients with the irritable bowel syn- Angelo A. Izzo, University of Naples drome (IBS), although their actual benefit is often debated. In fact, the recent progress in Federico II, Italy our understanding of the pathophysiology of IBS, accompanied by a large number of preclin- Reviewed by: Elisabetta Barocelli, University of ical and clinical studies of new drugs, has not been matched by a significant improvement Parma, Italy of the armamentarium of medications available to treat IBS. The aim of this review is to Raffaele Capasso, University of outline the current challenges in drug development for IBS, taking advantage of what we Naples Federico II, Italy have learnt through the Rome process (Rome I, Rome II, and Rome III). The key questions *Correspondence: that will be addressed are: (a) do we still believe in the “magic bullet,” i.e., a very selective Fabrizio De Ponti, Pharmacology Unit, Department of Medical and Surgical drug displaying a single receptor mechanism capable of controlling IBS symptoms? (b) IBS Sciences, University of Bologna, Via is a “functional disorder” where complex neuroimmune and brain-gut interactions occur Irnerio, 48, 40126 Bologna, Italy. and minimal inflammation is often documented: -
INVESTIGATION of NATURAL PRODUCT SCAFFOLDS for the DEVELOPMENT of OPIOID RECEPTOR LIGANDS by Katherine M
INVESTIGATION OF NATURAL PRODUCT SCAFFOLDS FOR THE DEVELOPMENT OF OPIOID RECEPTOR LIGANDS By Katherine M. Prevatt-Smith Submitted to the graduate degree program in Medicinal Chemistry and the Graduate Faculty of the University of Kansas in partial fulfillment of the requirements for the degree of Doctor of Philosophy. _________________________________ Chairperson: Dr. Thomas E. Prisinzano _________________________________ Dr. Brian S. J. Blagg _________________________________ Dr. Michael F. Rafferty _________________________________ Dr. Paul R. Hanson _________________________________ Dr. Susan M. Lunte Date Defended: July 18, 2012 The Dissertation Committee for Katherine M. Prevatt-Smith certifies that this is the approved version of the following dissertation: INVESTIGATION OF NATURAL PRODUCT SCAFFOLDS FOR THE DEVELOPMENT OF OPIOID RECEPTOR LIGANDS _________________________________ Chairperson: Dr. Thomas E. Prisinzano Date approved: July 18, 2012 ii ABSTRACT Kappa opioid (KOP) receptors have been suggested as an alternative target to the mu opioid (MOP) receptor for the treatment of pain because KOP activation is associated with fewer negative side-effects (respiratory depression, constipation, tolerance, and dependence). The KOP receptor has also been implicated in several abuse-related effects in the central nervous system (CNS). KOP ligands have been investigated as pharmacotherapies for drug abuse; KOP agonists have been shown to modulate dopamine concentrations in the CNS as well as attenuate the self-administration of cocaine in a variety of species, and KOP antagonists have potential in the treatment of relapse. One drawback of current opioid ligand investigation is that many compounds are based on the morphine scaffold and thus have similar properties, both positive and negative, to the parent molecule. Thus there is increasing need to discover new chemical scaffolds with opioid receptor activity. -
Minnesota Statutes 1979 Supplement
MINNESOTA STATUTES 1979 SUPPLEMENT 152.01 PROHIBITED DRUGS CHAPTER 152. PROHIBITED DRUGS Sec. 152.01 Definitions. 152.02 Schedules of controlled substances; admin istration of chapter. 152.01 Definitions. [For text of subds 1 to 8, see M.S.1978] Subd. 9. Marijuana. "Marijuana" means all parts of the plant of any species of the genus Cannabis, including all agronomical varieties, whether growing or not; the seeds thereof; the resin extracted from any part of such plant; and every compound, manufacture, salt, derivative, mixture, or preparation of such plant, its seeds or resin, but shall not include the mature stalks of such plant, fiber from such stalks, oil or cake made from the seeds of such plant, any other compound, manufacture, salt, derivative, mix ture, or preparation of such mature stalks, except the resin extracted therefrom, fiber, oil, or cake, or the sterilized seed of such plant which is incapable of germination. [For text of subds 10 to 17, see M.S.1978] [ 1979 c 157 s 1 ] 152.02 Schedules of controlled substances; administration of chapter. [For text of subd 1, see M.S.1978) Subd. 2. The following items are listed in Schedule I: (1) Any of the following substances, including their isomers, esters, ethers, salts, and salts of isomers, esters, and ethers, unless specifically excepted, whenever the exis tence of such isomers, esters, ethers and salts is possible within the specific chemical des ignation: Acetylmethadol; Allylprodine; Alphacetylmethadol; Alphameprodine; Alpham- ethadol; Benzethidine; Betacetylmethadol; Betameprodine; Betamethadol; Betaprodine; Clonitazene; Dextromoramide; Dextrorphan; Diampromide; Diethyliambutene; Dime- noxadol; Dimepheptanol; Dimethyliambutene; Dioxaphetyl butyrate; Dipipanone; Ethylmethylthiambutene; Etonitazene; Etoxeridine; Furethidine; Hydroxypethidine; Ke- tobemidone; Levomoramide; Levophenacylmorphan; Morpheridine; Noracymethadol; Norlevorphanol; Normethadone; Norpipanone; Phenadoxone; Phenampromide; Pheno- morphan; Phenoperidine; Piritramide; Proheptazine; Properidine; Racemoramide; Tri meperidine. -
In Vivo and in Vitro Characterization of Naltrindole-Derived
Journal of Psychopharmacology http://jop.sagepub.com/ In vivo and in vitro characterization of naltrindole-derived ligands at the κ-opioid receptor Joseph J Casal-Dominguez, Mary Clark, John R Traynor, Stephen M Husbands and Sarah J Bailey J Psychopharmacol 2013 27: 192 originally published online 31 October 2012 DOI: 10.1177/0269881112464828 The online version of this article can be found at: http://jop.sagepub.com/content/27/2/192 Published by: http://www.sagepublications.com On behalf of: British Association for Psychopharmacology Additional services and information for Journal of Psychopharmacology can be found at: Email Alerts: http://jop.sagepub.com/cgi/alerts Subscriptions: http://jop.sagepub.com/subscriptions Reprints: http://www.sagepub.com/journalsReprints.nav Permissions: http://www.sagepub.com/journalsPermissions.nav >> Version of Record - Jan 23, 2013 OnlineFirst Version of Record - Oct 31, 2012 What is This? Downloaded from jop.sagepub.com at University of Bath on May 14, 2013 JOP27210.1177/0269881112464828Journal of PsychopharmacologyCasal-Dominguez et al. 4648282013 Original Paper In vivo and in vitro characterization of naltrindole-derived ligands at the κ-opioid receptor Journal of Psychopharmacology 27(2) 192 –202 © The Author(s) 2013 Reprints and permission: sagepub.co.uk/journalsPermissions.nav 1 2 2 DOI: 10.1177/0269881112464828 Joseph J Casal-Dominguez , Mary Clark , John R Traynor , jop.sagepub.com Stephen M Husbands1 and Sarah J Bailey1 Abstract Accumulating evidence supports a role for κ−opioid receptor antagonists in the treatment of mood disorders. Standard κ-antagonists have an unusual pharmacodynamic action, with a single injection blocking receptor signaling for several weeks. Here, we have characterized the κ-selective properties of two ligands, 5’-(2-aminomethyl) naltrindole (5’-AMN) and N-((Naltrindol-5-yl) methyl) pentanimidamide (5’-MABN), to identify whether modifications of the naltrindole side chain produces short-acting κ-antagonists. -
Screening/Spot Test of Narcotics
Indian Journal of Forensic and Community Medicine 2020;7(4):160–165 Content available at: https://www.ipinnovative.com/open-access-journals Indian Journal of Forensic and Community Medicine Journal homepage: https://www.ipinnovative.com/journals/IJFCM Review Article Screening/spot test of narcotics A K Jaiswal1,*, Kamna Sharma2, Rohit Kanojia3, Sally Lukose4 1Dept. of Forensic Medicine & Toxicology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India 2Galgotias University, Greater Noida, Uttar Pradesh, India 3Dept. of Chemistry, University of Delhi, New Delhi, India 4CTM-IRTE, Faridabad, Haryana, India ARTICLEINFO ABSTRACT Article history: Narcotics are the substances used to treat moderate to severe pain. They could be natural like opiates such Received 25-11-2020 as morphine, codeine etc., synthetic like fentanyl, methadone etc., and semi-synthetic like oxycodone, Accepted 02-12-2020 hydrocodone etc. These drugs act as pain relievers, induces the state of stupor or sleep, and increase Available online 08-01-2021 the physical dependence on them. In forensic autopsy case, the forensic pathologist may require a complete toxicological investigation for different poisons including stimulants. In India, Forensic Science Laboratories run by Government under the Home ministry usually carry out this. The samples must be Keywords: analysed by the forensic toxicologist/chemists/scientist. This article deals with the screening/spot test for Narcotics narcotics. It attempts to simplify the standard procedures in a step-wise manner, which can be of handy Screening reference for the forensic toxicologist. Spot test Drugs © This is an open access article distributed under the terms of the Creative Commons Attribution Opioids etc License (https://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. -
Peripheral Kappa Opioid Receptor Activation Drives Cold Hypersensitivity in Mice
bioRxiv preprint doi: https://doi.org/10.1101/2020.10.04.325118; this version posted October 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Peripheral kappa opioid receptor activation drives cold hypersensitivity in mice Manish K. Madasu1,2,3, Loc V. Thang1,2,3, Priyanka Chilukuri1,3, Sree Palanisamy1,2, Joel S. Arackal1,2, Tayler D. Sheahan3,4, Audra M. Foshage3, Richard A. Houghten6, Jay P. McLaughlin5.6, Jordan G. McCall1,2,3, Ream Al-Hasani1,2,3 1Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA. 2Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA 3Department of Anesthesiology, Pain Center, Washington University. St. Louis, MO, USA. 4 Division of Biology and Biomedical Science, Washington University in St. Louis, MO, USA 5Department of Pharmacodynamics, University of Florida, Gainesville, FL, USA 6Torrey Pines Institute for Molecular Studies, Port St. Lucie, FL, USA Corresponding Author: Dr. Ream Al-Hasani Center for Clinical Pharmacology St. Louis College of Pharmacy Washington University School of Medicine 660 South Euclid Campus Box 8054 St. Louis MO, 63110 [email protected] bioRxiv preprint doi: https://doi.org/10.1101/2020.10.04.325118; this version posted October 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. -
Preliminary Effects of Pagoclone, a Partial GABA Agonist, On
ORIGINAL RESEARCH Preliminary effects of pagoclone, a partial GABAA agonist, on neuropsychological performance 1 Angela F Caveney Abstract: Pagoclone is a novel cyclopyrrolone that acts as a partial GABAA receptor agonist. Bruno Giordani1 Preclinical studies suggest that pagoclone may have clinical utility as an anxiolytic agent, as George M Haig2 well as a reduced incidence of side-effects. The present study was conducted to determine whether pagoclone would affect healthy individuals’ performances on neuropsychological 1Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA; measures as a function of dose within the projected therapeutic range. Twelve healthy adult 2Neurosciences Development, Abbott subjects were randomly assigned to dosage groups in a 3-way crossover study. Participants Laboratories, Abbott Park, IL, USA were administered neuropsychological measures six hours following dosing on Day 1 and Day 6 of administration of the drug. Dose effects were noted on measures of alertness, learning, and memory and movement time. Signifi cant effects were also noted on measures of alertness, learning and memory, information processing and psychomotor speed. Overall, the results of this small, preliminary study do not support a fi nding of behavioral toxicity for these doses of pagoclone. Rather, a pattern was found of transient and mild negative effects on learning and memory scores at the highest dose administered, though these changes were small and no longer evident by the sixth day of use. Keywords: pagoclone, cyclopyrrolone, neuropsychological, memory, generalized anxiety disorder Introduction Behavioral toxicity refers to the extent to which a drug affects an individual’s ability to perform the psychomotor and cognitive tasks of everyday life (Ramaekers 1998). -
INTERNATIONAL COLLABORATIVE EXERCISES (ICE) Summary Report
INTERNATIONAL QUALITY ASSURANCE PROGRAMME (IQAP) INTERNATIONAL COLLABORATIVE EXERCISES (ICE) Summary Report SEIZED MATERIALS 2016/1 INTERNATIONAL QUALITY ASSURANCE PROGRAMME (IQAP) INTERNATIONAL COLLABORATIVE EXERCISES (ICE) Table of contents Sample 1 Analysis Page 6 Identified substances Page 6 Statement of findings Page 11 Identification methods Page 20 False positives Page 26 Z-Scores Page 27 Sample 2 Analysis Page 31 Identified substances Page 31 Statement of findings Page 36 Identification methods Page 46 False positives Page 52 Z-Scores Page 53 Sample 3 Analysis Page 56 Identified substances Page 56 Statement of findings Page 61 Identification methods Page 70 False positives Page 76 Z-Scores Page 77 Sample 4 Analysis Page 80 Identified substances Page 80 Statement of findings Page 82 Identification methods Page 88 False positives Page 94 Z-Scores Page 95 Test Samples Information Samples Comments on samples Sample 1 SM-1 was prepared from a seizure containing 50.5 % (w/w) Cocaine base. The test sample also contained caffeine and levamisole. Benzoylecgonine and cinnamoyl cocaine were also detected as minor components. Sample 2 SM-2 was prepared from a seizure containing 13.8 % (w/w) MDMA. The test sample also contained lactose. Sample 3 SM-3 was prepared from a seizure containing 5.5 % (w/w) Amfetamine base. The test sample also contained caffeine and creatine. Sample 4 SM-4 wss a blank test sample prepared from plant material and contained no substances from the ICE menu Samples Substances Concentrations Comments on substances Sample 1 Caffeine - Quantification not required Cocaine 50.5 % Sample 2 3,4-Methylenedioxymetamfetamine (MDMA) 13.8 % Lactose - Quantification not required Sample 3 Amfetamine 5.5 % Caffeine - Quantification not required Sample 4 [blank sample] 2 2016/1-SM Copyright (c) 2016 UNODC Introduction An important element of the UNODC International Quality Assurance Programme (IQAP) is the implementation of the International Collaborative Exercises (ICE). -
GABA Receptors
D Reviews • BIOTREND Reviews • BIOTREND Reviews • BIOTREND Reviews • BIOTREND Reviews Review No.7 / 1-2011 GABA receptors Wolfgang Froestl , CNS & Chemistry Expert, AC Immune SA, PSE Building B - EPFL, CH-1015 Lausanne, Phone: +41 21 693 91 43, FAX: +41 21 693 91 20, E-mail: [email protected] GABA Activation of the GABA A receptor leads to an influx of chloride GABA ( -aminobutyric acid; Figure 1) is the most important and ions and to a hyperpolarization of the membrane. 16 subunits with γ most abundant inhibitory neurotransmitter in the mammalian molecular weights between 50 and 65 kD have been identified brain 1,2 , where it was first discovered in 1950 3-5 . It is a small achiral so far, 6 subunits, 3 subunits, 3 subunits, and the , , α β γ δ ε θ molecule with molecular weight of 103 g/mol and high water solu - and subunits 8,9 . π bility. At 25°C one gram of water can dissolve 1.3 grams of GABA. 2 Such a hydrophilic molecule (log P = -2.13, PSA = 63.3 Å ) cannot In the meantime all GABA A receptor binding sites have been eluci - cross the blood brain barrier. It is produced in the brain by decarb- dated in great detail. The GABA site is located at the interface oxylation of L-glutamic acid by the enzyme glutamic acid decarb- between and subunits. Benzodiazepines interact with subunit α β oxylase (GAD, EC 4.1.1.15). It is a neutral amino acid with pK = combinations ( ) ( ) , which is the most abundant combi - 1 α1 2 β2 2 γ2 4.23 and pK = 10.43. -
Discriminative Stimulus Effects of Cyclorphan: Selective Antagonism with Naltrexone
Psychopharmacology (1992) 106:189-194 Psychopharmacology Springer-Verlag 1992 Discriminative stimulus effects of cyclorphan: selective antagonism with naltrexone Albert J. Berta|mio and James H. Woods Departments of Psychology and Pharmacology, University of Michigan, Ann Arbor, MI 48109-0626, USA Received June 4, 1990 / Final version September 13, 1990 Abstract. The opioid antagonist, naltrexone, was used to to discriminate ethylketazocine (EKC) yielded high levels identify some of the receptor mechanisms responsible for of EKC-appropriate responding. Nevertheless, the levels the discriminative stimulus effects of cyclorphan in the that were attained with/-cyclorphan were not as high as pigeon. Subjects were trained to discriminate 10 mg/kg those that were readily obtainable with EKC itself, i.e., IM injections of either morphine or dextrorphan from there was a "ceiling" effect. Thus, that study suggested saline injections in a two key drug discrimination that /-cyclorphan shares some properties with opioid procedure in which responding was maintained by food agonists, but it also suggested that/ocyclorphan differs presentation. The dextrorphan-trained birds generalized from drugs in the opioid agonist class in some way. In to/-cyclorphan at 10 mg/kg; naltrexone did not alter the another phase of the previous study pigeons were chron- /-cyclorphan dose-response curve for this effect. In the ically treated with morphine and trained to discriminate morphine-trained group, l-cyclorphan produced only injections of naltrexone. The morphine-treated nal- partial generalization, and naltrexone greatly increased trexone-trained pigeons generalized fully to /-cyclor- the dose of/-cyclorphan necessary to produce this effect. phan, indicating that /-cyclorphan also shares some These results are consistent with the conclusion that in properties with drugs in the opioid antagonist class. -
United States Patent (10) Patent No.: US 8,916,581 B2 Boyd Et Al
USOO891 6581 B2 (12) United States Patent (10) Patent No.: US 8,916,581 B2 Boyd et al. (45) Date of Patent: *Dec. 23, 2014 (54) (S)-N-METHYLNALTREXONE 4,194,045 A 3, 1980 Adelstein 4,203,920 A 5, 1980 Diamond et al. (75) Inventors: Thomas A. Boyd, Grandview, NY (US); 4,241,066 A 12, 1980 Kobylecki et al. H OW d Wagoner,goner, Warwick,s NY (US);s 4,311,833.4,277,605 A T.1/1982 1981 NamikoshiBuyniski et etal. al. Suketu P. Sanghvi, Kendall Park, NJ 4.322,426 A 3/1982 Hermann et al. (US); Christopher Verbicky, 4.326,074 A 4, 1982 Diamond et al. Broadalbin, NY (US); Stephen 4.326,075 A 4, 1982 Diamond et al. “. s 4,377.568 A 3/1983 Chopra et al. Andruski, Clifton Park, NY (US) 4.385,078 A 5/1983 Onda et al. 4.427,676 A 1/1984 White et al. (73) Assignee: Progenics Pharmaceuticals, Inc., 4,430,327 A 2, 1984 Frederickson et al. Tarrytown, NY (US) 4,452,775 A 6/1984 Kent 4,457,907 A 7/1984 Porteret al. (*) Notice: Subject to any disclaimer, the term of this 4,462.839 A 7/1984 McGinley et al. patent is extended or adjusted under 35 4,518.4334,466,968 A 5/19858, 1984 McGinleyBernstein et al. U.S.C. 154(b) by 344 days. 4,533,739 A 8/1985 Pitzele et al. This patent is Subject to a terminal dis- 4,606,9094,556,552 A 12/19858/1986 PorterBechgaard et al. -
(12) United States Patent (10) Patent No.: US 9,687,445 B2 Li (45) Date of Patent: Jun
USOO9687445B2 (12) United States Patent (10) Patent No.: US 9,687,445 B2 Li (45) Date of Patent: Jun. 27, 2017 (54) ORAL FILM CONTAINING OPIATE (56) References Cited ENTERC-RELEASE BEADS U.S. PATENT DOCUMENTS (75) Inventor: Michael Hsin Chwen Li, Warren, NJ 7,871,645 B2 1/2011 Hall et al. (US) 2010/0285.130 A1* 11/2010 Sanghvi ........................ 424/484 2011 0033541 A1 2/2011 Myers et al. 2011/0195989 A1* 8, 2011 Rudnic et al. ................ 514,282 (73) Assignee: LTS Lohmann Therapie-Systeme AG, Andernach (DE) FOREIGN PATENT DOCUMENTS CN 101703,777 A 2, 2001 (*) Notice: Subject to any disclaimer, the term of this DE 10 2006 O27 796 A1 12/2007 patent is extended or adjusted under 35 WO WOOO,32255 A1 6, 2000 U.S.C. 154(b) by 338 days. WO WO O1/378O8 A1 5, 2001 WO WO 2007 144080 A2 12/2007 (21) Appl. No.: 13/445,716 (Continued) OTHER PUBLICATIONS (22) Filed: Apr. 12, 2012 Pharmaceutics, edited by Cui Fude, the fifth edition, People's Medical Publishing House, Feb. 29, 2004, pp. 156-157. (65) Prior Publication Data Primary Examiner — Bethany Barham US 2013/0273.162 A1 Oct. 17, 2013 Assistant Examiner — Barbara Frazier (74) Attorney, Agent, or Firm — ProPat, L.L.C. (51) Int. Cl. (57) ABSTRACT A6 IK 9/00 (2006.01) A control release and abuse-resistant opiate drug delivery A6 IK 47/38 (2006.01) oral wafer or edible oral film dosage to treat pain and A6 IK 47/32 (2006.01) substance abuse is provided.