Alkaloids.Tarek Kakhia.Pdf

Total Page:16

File Type:pdf, Size:1020Kb

Alkaloids.Tarek Kakhia.Pdf ADANA UNIVERSTY – INDUSTRY JOINT RESEARCH CENTER ALKALOIDS & ALKALOIDS PLANTS By TAREK ISMAIL KAKHIA 1 2 INDEX Itam Page Itam No 1 - Alkaloids : 1 Alkaloids 2 Atropine 3 Caffeine 4 Cocaine 5 Codaine 6 Heroine 7 Lidocaine 8 Morphin 9 Nicotine 10 Papaverine 11 Solanine 2 - Alkaliod Plants 1 Belladonna 2 Cannabis 3 Cannabis ( Drug ) 4 Cannabis ( Altivation ) 5 Coca 6 Coffee 7 Datura Stramonium 8 Datura 9 Hashish 10 Khat 11 Opium 12 Opium Poppy 3 13 Tea 14 Tobacco 15 Yerba Mate 3 - Alkaliod Plants Time Line 1 Time Line of Cannabis 1 2 Time Line of Cannabis 2 3 Time Line of Coca 4 Time Line of Coffee 5 Time Line of Datura 6 Time Line of Hashish 7 Time Line of Khat 8 Time Line of Poppy & Opium 9 Time Line of Tea 10 Time Line of Tobacco 11 Time Line of Yerba Mat 12 Time Line of 4 - Extension and Supplements 1 Night Shade Alkaloid Toxins Atropine , Scopolamine and Solanine 2 Hyoscyamus Niger 3 Nerium Oleander 4 PART – 1 ALKALOIDS 5 6 Alkaloid Chemical structure of ephedrine, a phenethylamine alkaloid Contents : 1 Introduction 2 Alkaloid Classifications 3 Physicochemical Properties 4 Category : Alkaloids 1 – Introduction : Alkaloids are naturally occurring chemical compounds containing basic nitrogen atoms . The name derives from the word alkaline and was used to describe any nitrogen - containing base. Alkaloids are produced by a large variety of organisms, including bacteria, fungi, plants, and animals and are part of the group of natural products (also called secondary metabolites ) . Many alkaloids can be purified from crude extracts by acid - base extraction. Many alkaloids are toxic to other organisms. They often have pharmacological effects and are used as medications, as recreational drugs, or in entheogenic rituals. Examples are the local anesthetic and stimulant cocaine, the stimulant caffeine, nicotine, the analgesic morphine, or the antimalarial drug quinine. Some alkaloids have a bitter taste . Caffeine 7 2 - Alkaloid classifications : The classification of the alkaloids is complex and may be guided by a set of rules that take into account the structure and other chemical features of the alkaloid molecule, its biological origin, as well as the biogenetic origin where known.[2][3] For example, where the biosynthesis pathway of an alkaloid is unknown, it may be grouped based on structural similarities with known compounds, including non-nitrogenous compounds, or by the organism (s) from which the alkaloid was isolated . Pyridine group : piperine , coniine , trigonelline , arecoline , arecaidine , guvacine, cytisine , lobeline , nicotine , anabasine , sparteine , pelletierine . Pyrrolidine group : hygrine , cuscohygrine , nicotine . Tropane group : atropine , cocaine , ecgonine , scopolamine , catuabine . Indolizidine group : senecionine , swainsonine . Quinoline group : quinine , quinidine , dihydroquinine, dihydroquinidine , strychnine , brucine , veratrine , cevadine . Isoquinoline group : opium alkaloids ( papaverine , narcotine , narceine ) , pancratistatin , sanguinarine , hydrastine , berberine , emetine , berbamine , oxyacanthine . Phenanthrene alkaloids : opium alkaloids ( morphine , codeine , thebaine , oripavine ) Phenethylamine group : mescaline , ephedrine , dopamine . 8 Indole group : Tryptamines : serotonin , bufotenine , psilocybin Ergolines : ergine , ergotamine , lysergic acid Beta - carbolines : harmine , harmaline , tetra hydro harmine Yohimbans : reserpine, yohimbine . Vinca alkaloids : vinblastine, vincristine . Kratom) alkaloids : mitragynine , 7- hydroxy mitragynine . Tabernanthe iboga : ibogaine , voacangine , coronaridine . Strychnos nux-vomica : strychnine , brucine . Purine group : Xanthines , caffeine , theobromine , theophylline . Terpenoid group : Aconitum alkaloids : aconitine . Steroid alkaloids : ( containing a steroid skeleton in a nitrogen containing structure) : Solanum alkaloids ( e.g. potato and tomato ) : ( solanidine , solanine , chaconine ) . Veratrum alkaloids : ( veratramine , cyclo pamine , cycloposine , jervine , muldamine ) .. Fire Salamander alkaloids : ( samandarin ) . thers : conessine . Quaternary ammonium compounds : muscarine , choline , neurine . Miscellaneous : capsaicin , cynarin , phytolaccine , phytolaccotoxin . 3 - Physicochemical properties : Low - molecular weight alkaloids without hydrogen bond donors such as hydroxy groups are often liquid at room temperature , examples are nicotine , sparteine , coniine , and phenethylamine . The basicity of alkaloids depends on the lone pairs of electrons on their nitrogen atoms. As organic bases, alkaloids form salts with mineral acids such as hydrochloric acid and sulfuric acid and organic acids such as tartaric acid or maleic acid. These salts are usually more water-soluble than their free base form . 9 4 - Category : Alkaloids : An alkaloid is a naturally occurring nitrogenous organic molecule that has a pharmacological effect on humans and other animals. The name derives from the word alkaline; originally, the term was used to describe any nitrogen - containing base (an amine in modern terms). Alkaloids are found in plants (e.g., in potatoes and tomatoes), animals (e.g., in shellfish) and fungi (e.g., in mushrooms), and can be extracted from their sources by treatment with acids ( usually hydrochloric acid or sulfuric acid, though organic acids such as maleic acid and citric acid are sometimes used ) . A : Acetylpsilocin . Aconitine . Ageliferin . Ajmalan . Ajmaline . Akuammine . Allopumiliotoxin . Allopumiliotoxin 267A . Anabasine . Anatoxin - a . Apomorphine . Aporphine B : Batrachotoxin . Benzyl isoquinoline . Berberine . Brucine . Bulbocapnine C : Calligonine . Camptothecin . Carpaine . Castanospermine . Cathinone . Chaconine . Chavicine . Chelerythrine . Cinchonidine . Cinchonine . Colchicine . Conessine . Conhydrine . Coniine . Coptisine . Coramsine . Cordycepin . Cryogenine . Cuscohygrine . Cylindrospermopsin . Cytisine . D : Dehydro emetine . Delphinine . Demecolcine . Dihydro ergocornine . Dihydro ergocristine . Dihydro quinidine . Dihydro quinine . Docetaxel E : Eletefine . Emetine . Epibatidine . Ergine E cont . Ergoline . Ethocybin . G : Glaucine . Glycoalkaloid . H : Harmine . Hasubanan . Hasubanonine . Himbacine . Histrio nicotoxin . Hodgkinsine . Horsfiline . Huperzine A . Hydrastine . Hydrastinine . Hygrine . I : Imidazole . Isovaleramide 10 L : Lennoxamine . Leonurine . Lobeline . Loline alkaloids . Lupinine . Lycorine . Lysergic acid hydroxy ethylamide . M : Methcathinone . Methoxy methyl enedioxy amphetamine . Methoxy coronaridine . 1-Methyl - 2,3,4,9 – tetra hydro -1H – pyrido - 3,4 – b - indole . Methyl benzo dioxolyl butanamine . N –Methyl coniine . Methyllycaconitine . Methylone . N : Nantenine . Narcotoline . Neurine . Nicotine . Norzoanthamine . O : Orellanine P : Paclitaxel . Pancratistatin . Pericine . Phenyl propanol amine . Phenyl tropane . Physostigmine . Piperine . Prajmaline . Pseudo aconitine . Pseudo pelletierine . Pukateine P cont . Pumiliotoxin . Pumiliotoxin 251D . Pyrrolizidine alkaloid . R : Rhynchophylline . Rodiasine . Ryanodine . S : Samandaridine . Samandarin . Sanguinarine . Saxitoxin . Scoulerine . Senecionine . Sinomenine . Solamargine . Solanine . Solanocapsine . Solasodamine . Solasodine . Solasonine . Solauricidine . Solauricine . Solenopsin . Sparteine . Spirotryprostatin. Staurosporine . Stepholidine . Strychnine . Swainsonine . T : Tetra hydro harman . Tetra hydro palmatine . Thebaine . Tri gonelline . Tri methoxy amphetamine . Tropane . Tropane alkaloid . Tropinone . Tryptoline . Tubocurarine V : Veracevine . Veratridine . Vinblastine . Vinburnine . Vincristine . Vindesine . Vinflunine . Vinorelbine . Voacangine . Y : Yuremamine 11 Atropine Contents : 1 Introduction 2 Physiological effects and uses o 2.1 Ophthalmic use o 2.2 Resuscitation o 2.3 Secretions and bronchoconstriction o 2.4 Treatment for organophosphate poisoning o 2.5 Optical penalization o 2.6 Side - effects and overdose 3 Chemistry and pharmacology 4 History 5 Natural sources 1 – Introduction : Atropine is a tropane alkaloid extracted from deadly nightshade ( Atropa belladonna ) , jimsonweed ( Datura stramonium ) , mandrake ( Mandragora officinarum ) and other plants of the family Solanaceae . It is a secondary metabolite of these plants and serves as a drug with a wide variety of effects. It is a competitive antagonist for the muscarinic acetylcholine receptor. It is classified as an anti cholinergic drug. Being potentially deadly, it derives its name from Atropos, one of the three Fates who, according to Greek mythology, chose how a person was to die. Atropine is a core medicine in the World Health Organization's "Essential Drugs List", which is a list of minimum medical needs for a basic health care system . 12 Systematic (IUPAC) name ( 8 – methyl – 8 – azabicyclo [ 3.2.1 ] oct – 3 – yl ) 3 – hydroxyl – 2 – phenyl propanoate Formula C17H23NO3 Mol Mass 289 Pharmacokinetic data Bioavailability 25 % Metabolism 50 % hydrolyzed to tropine and tropic acid Half life 2 hours Excretion 50 % excreted unchanged in urine 2 - Physiological effects and uses Atropine increases firing of the sinoatrial node (SA) and conduction through the atrioventricular node (AV) of the heart, opposes the actions of the vagus nerve , blocks acetylcholine receptor sites, and decreases bronchial secretions. In general, atropine lowers the parasympathetic activity of all muscles and glands regulated by the parasympathetic nervous system. This occurs because atropine is a competitive antagonist of the muscarinic acetylcholine
Recommended publications
  • Ethnobotanical Survey at Kolaroa Region of Satkhira District of Bangladesh
    Ethnobotanical Survey at Kolaroa region of Satkhira District of Bangladesh (This report presented in partial fulfillment of the requirements for the degree of Bachelor of Pharmacy) Supervised by: FARHANA ISRAT JAHAN Senior Lecturer DEPARTMENT OF PHARMACY Submitted By: Sarder Istiaque Ahmed ID: 111-29-308 Department of Pharmacy Faculty of Allied Health Sciences DAFFODIL INTERNATIONAL UNIVERSITY DHAKA, BANGLADESH Ethnobotanical Survey at Kolaroa region of Satkhira District of Bangladesh APPROVAL This Project,Ethnobotanical Survey at kolaroa region of Satkhira District of Bangladeshsubmitted by Sarder Istiaque Ahmed to the Department of Pharmacy, Daffodil International University, has been accepted as satisfactory for the partial fulfillment of the requirements for the degree of Bachelor of Pharmacy and approved as to it style and contents. BOARD OF EXAMINERS Head Internal Examiner-1 Internal Examiner-2 External Examiner ©DAFFODIL INTERNATIONAL UNIVERSITY i Ethnobotanical Survey at Kolaroa region of Satkhira District of Bangladesh Acknowledgement All praises and gratitude to almighty Allah, the most beneficent and the merciful who manages each and everything soundly and enables me to complete my project work. Then, I would like to take the opportunity to express my appreciation to my honorable supervisor for her proper guidelines and suggestions to complete the research. I wish to convey my thanks and heartiest regard to him for providing important data and extended cooperation. I am also thankful to the people of Bangladesh National Herbarium, Mirpur, Dhaka, Dr. Mahbuba Khanum (Director of National Herbarium centre). Also I am thankful to my grandfather Md. Afzal Hossain, without him my total study would be undone. Finally, I want to express my gratitude to my parents & all of people of Kolaroa Thana of Satkhira district who accepted to share their knowledge & experience also.
    [Show full text]
  • Hallucinogens - LSD, Peyote, Psilocybin, and PCP
    Hallucinogens - LSD, Peyote, Psilocybin, and PCP Hallucinogenic compounds found in some • Psilocybin (4-phosphoryloxy-N,N- plants and mushrooms (or their extracts) dimethyltryptamine) is obtained from have been used—mostly during religious certain types of mushrooms that are rituals—for centuries. Almost all indigenous to tropical and subtropical hallucinogens contain nitrogen and are regions of South America, Mexico, and classified as alkaloids. Many hallucinogens the United States. These mushrooms have chemical structures similar to those of typically contain less than 0.5 percent natural neurotransmitters (e.g., psilocybin plus trace amounts of acetylcholine-, serotonin-, or catecholamine- psilocin, another hallucinogenic like). While the exact mechanisms by which substance. hallucinogens exert their effects remain • PCP (phencyclidine) was developed in unclear, research suggests that these drugs the 1950s as an intravenous anesthetic. work, at least partially, by temporarily Its use has since been discontinued due interfering with neurotransmitter action or to serious adverse effects. by binding to their receptor sites. This DrugFacts will discuss four common types of How Are Hallucinogens Abused? hallucinogens: The very same characteristics that led to • LSD (d-lysergic acid diethylamide) is the incorporation of hallucinogens into one of the most potent mood-changing ritualistic or spiritual traditions have also chemicals. It was discovered in 1938 led to their propagation as drugs of abuse. and is manufactured from lysergic acid, Importantly, and unlike most other drugs, which is found in ergot, a fungus that the effects of hallucinogens are highly grows on rye and other grains. variable and unreliable, producing different • Peyote is a small, spineless cactus in effects in different people at different times.
    [Show full text]
  • Index Vol. 12-15
    353 INDEX VOL. 12-15 Die Stichworte des Sachregisters sind in der jeweiligen Sprache der einzelnen Beitrage aufgefiihrt. Les termes repris dans la Table des matieres sont donnes selon la langue dans laquelle l'ouvrage est ecrit. The references of the Subject Index are given in the language of the respective contribution. 14 AAG (Alpha-acid glycoprotein) 120 14 Adenosine 108 12 Abortion 151 12 Adenosine-phosphate 311 13 Abscisin 12, 46, 66 13 Adenosine-5'-phosphosulfate 148 14 Absorbierbarkeit 317 13 Adenosine triphosphate 358 14 Absorption 309, 350 15 S-Adenosylmethionine 261 13 Absorption of drugs 139 13 Adipaenin (Spasmolytin) 318 14 - 15 12 Adrenal atrophy 96 14 Absorptionsgeschwindigkeit 300, 306 14 - 163, 164 14 Absorptionsquote 324 13 Adrenal gland 362 14 ACAI (Anticorticocatabolic activity in­ 12 Adrenalin(e) 319 dex) 145 14 - 209, 210 12 Acalo 197 15 - 161 13 Aceclidine (3-Acetoxyquinuclidine) 307, 13 {i-Adrenergic blockers 119 308, 310, 311, 330, 332 13 Adrenergic-blocking activity 56 13 Acedapsone 193,195,197 14 O(-Adrenergic blocking drugs 36, 37, 43 13 Aceperone (Acetabutone) 121 14 {i-Adrenergic blocking drugs 38 12 Acepromazin (Plegizil) 200 14 Adrenergic drugs 90 15 Acetanilid 156 12 Adrenocorticosteroids 14, 30 15 Acetazolamide 219 12 Adrenocorticotropic hormone (ACTH) 13 Acetoacetyl-coenzyme A 258 16,30,155 12 Acetohexamide 16 14 - 149,153,163,165,167,171 15 1-Acetoxy-8-aminooctahydroindolizin 15 Adrenocorticotropin (ACTH) 216 (Slaframin) 168 14 Adrenosterone 153 13 4-Acetoxy-1-azabicyclo(3, 2, 2)-nonane 12 Adreson 252
    [Show full text]
  • The Use of Plants in the Traditional Management of Diabetes in Nigeria: Pharmacological and Toxicological Considerations
    Journal of Ethnopharmacology 155 (2014) 857–924 Contents lists available at ScienceDirect Journal of Ethnopharmacology journal homepage: www.elsevier.com/locate/jep Review The use of plants in the traditional management of diabetes in Nigeria: Pharmacological and toxicological considerations Udoamaka F. Ezuruike n, Jose M. Prieto 1 Center for Pharmacognosy and Phytotherapy, Department of Pharmaceutical and Biological Chemistry, School of Pharmacy, University College London, 29-39 Brunswick Square, WC1N 1AX London, United Kingdom article info abstract Article history: Ethnopharmacological relevance: The prevalence of diabetes is on a steady increase worldwide and it is Received 15 November 2013 now identified as one of the main threats to human health in the 21st century. In Nigeria, the use of Received in revised form herbal medicine alone or alongside prescription drugs for its management is quite common. We hereby 26 May 2014 carry out a review of medicinal plants traditionally used for diabetes management in Nigeria. Based on Accepted 26 May 2014 the available evidence on the species' pharmacology and safety, we highlight ways in which their Available online 12 June 2014 therapeutic potential can be properly harnessed for possible integration into the country's healthcare Keywords: system. Diabetes Materials and methods: Ethnobotanical information was obtained from a literature search of electronic Nigeria databases such as Google Scholar, Pubmed and Scopus up to 2013 for publications on medicinal plants Ethnopharmacology used in diabetes management, in which the place of use and/or sample collection was identified as Herb–drug interactions Nigeria. ‘Diabetes’ and ‘Nigeria’ were used as keywords for the primary searches; and then ‘Plant name – WHO Traditional Medicine Strategy accepted or synonyms’, ‘Constituents’, ‘Drug interaction’ and/or ‘Toxicity’ for the secondary searches.
    [Show full text]
  • Molecular Modeling of Major Tobacco Alkaloids in Mainstream Cigarette Smoke Caren Kurgat, Joshua Kibet* and Peter Cheplogoi
    Kurgat et al. Chemistry Central Journal (2016) 10:43 DOI 10.1186/s13065-016-0189-5 RESEARCH ARTICLE Open Access Molecular modeling of major tobacco alkaloids in mainstream cigarette smoke Caren Kurgat, Joshua Kibet* and Peter Cheplogoi Abstract Background: Consensus of opinion in literature regarding tobacco research has shown that cigarette smoke can cause irreparable damage to the genetic material, cell injury, and general respiratory landscape. The alkaloid family of tobacco has been implicated is a series of ailments including addiction, mental illnesses, psychological disorders, and cancer. Accordingly, this contribution describes the mechanistic degradation of major tobacco alkaloids including the widely studied nicotine and two other alkaloids which have received little attention in literature. The principal focus is to understand their energetics, their environmental fate, and the formation of intermediates considered harmful to tobacco consumers. Method: The intermediate components believed to originate from tobacco alkaloids in mainstream cigarette smoke were determined using as gas-chromatography hyphenated to a mass spectrometer fitted with a mass selective detector (MSD) while the energetics of intermediates were conducted using the density functional theory framework (DFT/B3LYP) using the 6-31G basis set. Results: The density functional theory calculations conducted using B3LYP correlation function established that the scission of the phenyl C–C bond in nicotine and β-nicotyrine, and C–N phenyl bond in 3,5-dimethyl-1-phenylpyrazole were respectively 87.40, 118.24 and 121.38 kcal/mol. The major by-products from the thermal degradation of nicotine, β-nicotyrine and 3,5-dimethyl-1-phenylpyrazole during cigarette smoking are predicted theoretically to be pyridine, 3-methylpyridine, toluene, and benzene.
    [Show full text]
  • Landmarks in the History of Neurosurgery
    PART 1 General Overview 1 Landmarks in the History of Neurosurgery JAMES TAIT GOODRICH “If a physician makes a wound and cures a freeman, he shall receive ten running complex 21st-century stereotaxic frameless guided pieces of silver, but only five if the patient is the son of a plebeian or two systems. if he is a slave. However it is decreed that if a physician treats a patient In many museum and academic collections around the with a metal knife for a severe wound and has caused the man to die—his world are examples of the earliest form of neurosurgery—skull hands shall be cut off.” trephination.1–4 A number of arguments and interpretations —Code of Hammurabi (1792–50 BC) have been advanced by scholars as to the origin and surgical reasons for this early operation—to date no satisfactory answers have been found. Issues of religion, treatment of head injuries, release of demons, and treatment of headaches have all been offered. Unfortunately, no adequate archaeological materials n the history of neurosurgery there have occurred a number have surfaced to provide us with an answer. In reviewing some of events and landmarks, and these will be the focus of this of the early skulls, the skills of these early surgeons were quite chapter. In understanding the history of our profession, remarkable. Many of the trephined skulls show evidence of Iperhaps the neurosurgeon will be able explore more carefully healing, proving that these early patients survived the surgery. the subsequent chapters in this volume to avoid having his or Fig.
    [Show full text]
  • Drugs Acting on Nervous System
    v DrugsActing on NervousSystem Hyoscyamus Synonym: Hyoscyamus herb, henbane B.S: It consists of dried leaves & flowering tops of the plant Hyoscyamus niger, family Solanaceae. It should contain not less than 0.05% of total alkaloids calculated as hyoscyamine. C.C: It contains alkaloids hyoscyamine, hyoscine ( scopolamine) & atropine. Uses: It is used to counteract gripping due to purgatives & also to relieve spasms of the urinary tract. It is also sedative & used to check salivary secretions. It is an antispasmodic & anti- asthamatic. Substitutes: Egyptian henbane. Datura Synonym: Datura herb B.S: It consists of dried leaves & flowering tops of the plant Datura metel variety fastuosa Safford, family Solanaceae. It should contain not less than 0.5% of total alkaloids calculated as hyoscyamine. C.C: It contains alkaloids ,hyoscine ( scopolamine) . Only small quantities of hyoscyamine& atropine are present. Uses: The drug is parasympathetic depressant. It is used in the treatment of asthma & cough. It is also an antispa smodic & a CNS depressant. Chemical test (Vitali-Morin Reaction) 1.Tropane alkaloid is treated with fuming nitric acid, followed by evaporation to dryness & addition of methanolic KoH solution to an acetone solution of nitrated residue. Violet coloration takes place due to tropane derivative. 2.On addition of silver nitrate soln to soln of hyoscine hydrobromide, yellowish white ppt is formed, which is insoluble in nitric acid, but soluble in dilute ammonia. Belladonna herb Synonym: Belladonna leaf, Deadly night shade B.S: It consists of dried leaves or the leaves & other aerial parts of the plant Atropa belladonna or Atropa acuminata or mixture of both the species collected when the plant are in flowering stage, family Solanaceae.
    [Show full text]
  • Defeating Surgical Anguish: a Worldwide Tale of Creativity
    Journal of Anesthesia and Patient Care Volume 3 | Issue 1 ISSN: 2456-5490 Research Article Open Access Defeating Surgical Anguish: A Worldwide Tale of Creativity, Hostility, and Discovery Iqbal Akhtar Khan*1 and Charles J Winters2 1Independent Scholar, Lahore, Pakistan 2Neurosurgeon, Washington County, 17-Western Maryland Parkway, Suit #100, Hagerstown, MD21740, United States *Corresponding author: Iqbal Akhtar Khan, MBBS, DTM, FACTM, PhD, Independent Scholar, Lahore, Pakistan, E-mail: [email protected] Citation: Iqbal Akhtar Khan, Charles J Winters (2018) Defeating Surgical Anguish: A Worldwide Tale of Creativity, Hostility, and Discovery. J Anesth Pati Care 3(1): 101 Received Date: March 01, 2018 Accepted Date: December 11, 2018 Published Date: December 13, 2018 In Memoria There are countless persons who have suffered through the ages around the world but not mentioned in any text or inscription. The following examples are sad but true tales of the journey through experimentation and torture. Ms. Eufame MacAlyane of Castle Hill Edinburg who, in 1591, was burned alive by order of the ruler of Scotland, King James I, who was an early opponent of “pain free labor”. Her “unforgivable offense” was to seek pain relief during labor [1]. Mrs. Kae Seishu volunteered as the brave first human subject to test “Tsusensan”, an oral anesthetic mixture formulated by her husband Dr. Seishu Hanaoka. The product met great success but she became permanently blind, presumably from repeated experimentation [2]. Their husbands’ agony and anguish is unimaginable! As such, it was a personalized, immeasurable, and unsharable experience. Apropos is a quote from an Urdu poet! Unknown remained their beloveds’ graves, Their nameless, traceless sanctuary.
    [Show full text]
  • Radiolabelled Molecules for Brain Imaging with PET and SPECT • Peter Brust Radiolabelled Molecules for Brain Imaging with PET and SPECT
    Radiolabelled Molecules for Brain Imaging with PET and SPECT Radiolabelled • Peter Brust Molecules for Brain Imaging with PET and SPECT Edited by Peter Brust Printed Edition of the Special Issue Published in Molecules www.mdpi.com/journal/molecules Radiolabelled Molecules for Brain Imaging with PET and SPECT Radiolabelled Molecules for Brain Imaging with PET and SPECT Editor Peter Brust MDPI • Basel • Beijing • Wuhan • Barcelona • Belgrade • Manchester • Tokyo • Cluj • Tianjin Editor Peter Brust Department of Neuroradiopharmaceuticals, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf Germany Editorial Office MDPI St. Alban-Anlage 66 4052 Basel, Switzerland This is a reprint of articles from the Special Issue published online in the open access journal Molecules (ISSN 1420-3049) (available at: https://www.mdpi.com/journal/molecules/special issues/PET SPECT). For citation purposes, cite each article independently as indicated on the article page online and as indicated below: LastName, A.A.; LastName, B.B.; LastName, C.C. Article Title. Journal Name Year, Article Number, Page Range. ISBN 978-3-03936-720-7 (Hbk) ISBN 978-3-03936-721-4 (PDF) c 2020 by the authors. Articles in this book are Open Access and distributed under the Creative Commons Attribution (CC BY) license, which allows users to download, copy and build upon published articles, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications. The book as a whole is distributed by MDPI under the terms and conditions of the Creative Commons license CC BY-NC-ND. Contents About the Editor .............................................. vii Preface to ”Radiolabelled Molecules for Brain Imaging with PET and SPECT” ........
    [Show full text]
  • Anti-Cholinergic Alkaloids As Potential Therapeutic Agents for Alzheimer's Disease
    Indian Journal of Biochemistry & Biophysics Vol. 50, April 2013, pp. 120-125 Anti-cholinergic alkaloids as potential therapeutic agents for Alzheimer’s disease: An in silico approach Huma Naaz, Swati Singh, Veda P Pandey, Priyanka Singh and Upendra N Dwivedi* Bioinformatics Infrastructure Facility, Center of Excellence in Bioinformatics, Department of Biochemistry, University of Lucknow, Lucknow 226 007, India Received 10 September 2012; revised 25 January 2013 Alzheimer’s disease (AD), a progressive neurodegenerative disorder with many cognitive and neuropsychiatric symptoms is biochemically characterized by a significant decrease in the brain neurotransmitter acetylcholine (ACh). Plant-derived metabolites, including alkaloids have been reported to possess neuroprotective properties and are considered to be safe, thus have potential for developing effective therapeutic molecules for neurological disorders, such as AD. Therefore, in the present study, thirteen plant-derived alkaloids, namely pleiocarpine, kopsinine, pleiocarpamine (from Pleiocarpa mutica, family: Annonaceae), oliveroline, noroliveroline, liridonine, isooncodine, polyfothine, darienine (from Polyalthia longifolia, family: Apocynaceae) and eburnamine, eburnamonine, eburnamenine and geissoschizol (from Hunteria zeylanica, family: Apocynaceae) were analyzed for their anti-cholinergic action through docking with acetylcholinesterase (AChE) as target. Among the alkaloids, pleiocarpine showed promising anti-cholinergic potential, while its amino derivative showed about six-fold
    [Show full text]
  • Pharmacognostic Study of Some Medicinal Plants from Goa
    PHARMACOGNOSTIC STUDY OF SOME MEDICINAL PLANTS FROM GOA A THESIS SUBMITTED TO GOA UNIVERSITY, GOA FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN APPLIED BIOLOGY BY RUDRAJI VISHVANATH GAITONDE, M. Pharm GOA COLLEGE OF PHARMACY PANAJI — GOA 64)4 ri.N RESEARCH GUIDE Dr. ARVIND G. UNTAWALE, M. Sc, Ph.D. SCIENTIST AND ASSISTANT DIRECTOR NATIONAL INSTITUTE OF OCEANOGRAPHY ( Council of Scientific and industrial Research ) DONA PAULA, GOA — 403 004, ( INDIA ) MAY, 1988 (1.51 32 pk a_ CONTENTS 0EAkTER PAGE I. INTRODUCTION AND LITERATURE REVIEW 1 - 21 A Literature Review of the Pharmacological and Phytochemical Aspects of the Medicinal plants. 22 - 46 Pharmacological Review 22 - 34 Phytochemical Review 35 — 46 II. MATERIALS AND METHODS 47 — 62 III. MORPHOLOGY AND TAXONOMY OF THE MEDICINAL PLANTS 63 - 112 IV. MICROSCOPICAL CHARACIERS OF THE CRUDE DRUGS 113 - 126 Microscopical characters of powdered roots and rhizomes 114 - 117 Microscopical characters of powdered seeds ,116 Microscopical characters of powdered leaves 119 - 122 Microscopical characters of powdered barks 123 - 126 V. CHEMOTAXONOMICAL STUDIES OF THE MEDICINAL PLANTS 127 - 190 TLC pattern of methanolic extract of the drugs using eight developing solvents for phenolic plant constituents. 129 - 168 Thin layer chromatographic study of root extracts 129 - 142 Thin layer chromatographic study of seed extracts 143 — 144 Thin layer chromatographic study of leaf extracts 145 — 157 Thin layer chromatographic study of bark extracts 158 — 168 TLC pattern and two dimensional paper chromato- graphic
    [Show full text]
  • What Are the Treatments for Heroin Addiction?
    How is heroin linked to prescription drug abuse? See page 3. from the director: Research Report Series Heroin is a highly addictive opioid drug, and its use has repercussions that extend far beyond the individual user. The medical and social consequences of drug use—such as hepatitis, HIV/AIDS, fetal effects, crime, violence, and disruptions in family, workplace, and educational environments—have a devastating impact on society and cost billions of dollars each year. Although heroin use in the general population is rather low, the numbers of people starting to use heroin have been steadily rising since 2007.1 This may be due in part to a shift from abuse of prescription pain relievers to heroin as a readily available, cheaper alternative2-5 and the misperception that highly pure heroin is safer than less pure forms because it does not need to be injected. Like many other chronic diseases, addiction can be treated. Medications HEROIN are available to treat heroin addiction while reducing drug cravings and withdrawal symptoms, improving the odds of achieving abstinence. There are now a variety of medications that can be tailored to a person’s recovery needs while taking into account co-occurring What is heroin and health conditions. Medication combined with behavioral therapy is particularly how is it used? effective, offering hope to individuals who suffer from addiction and for those around them. eroin is an illegal, highly addictive drug processed from morphine, a naturally occurring substance extracted from the seed pod of certain varieties The National Institute on Drug Abuse (NIDA) has developed this publication to Hof poppy plants.
    [Show full text]