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Report of the Advisory Group to Recommend Priorities for the IARC Monographs During 2020–2024
IARC Monographs on the Identification of Carcinogenic Hazards to Humans Report of the Advisory Group to Recommend Priorities for the IARC Monographs during 2020–2024 Report of the Advisory Group to Recommend Priorities for the IARC Monographs during 2020–2024 CONTENTS Introduction ................................................................................................................................... 1 Acetaldehyde (CAS No. 75-07-0) ................................................................................................. 3 Acrolein (CAS No. 107-02-8) ....................................................................................................... 4 Acrylamide (CAS No. 79-06-1) .................................................................................................... 5 Acrylonitrile (CAS No. 107-13-1) ................................................................................................ 6 Aflatoxins (CAS No. 1402-68-2) .................................................................................................. 8 Air pollutants and underlying mechanisms for breast cancer ....................................................... 9 Airborne gram-negative bacterial endotoxins ............................................................................. 10 Alachlor (chloroacetanilide herbicide) (CAS No. 15972-60-8) .................................................. 10 Aluminium (CAS No. 7429-90-5) .............................................................................................. 11 -
Protocol Title: Phase 2 Clinical Trial of SGS-742 Therapy in Succinic Semialdehyde Dehydrogenase Deficiency
Protocol Title: Phase 2 Clinical Trial of SGS-742 Therapy in Succinic Semialdehyde Dehydrogenase Deficiency NCT #: 02019667 Date: 02.13.2020 Explanation of dates: The protocol uploaded to the Documents Section of clinicaltrials.gov represents the final IRB approved version of the protocol. The study team submitted the final amended version of the protocol on March 26, 2019, which was approved by the IRB on April 3, 2019. This version of the protocol was submitted to the IRB for final Continuing Review and was approved by the IRB on August 8, 2019. Protocol Title: Clinical Trial of SGS-742 Therapy in Succinic Semialdehyde Dehydrogenase Deficiency Abbreviated Title: SGS-742 in SSADH Deficiency Protocol Number: 14-N-0033 Date of This Submission/Version: March 26, 2019/Version 17 Principal Investigator [email protected] Sara Inati M.D. OCD NINDS 10/7-5680 301-435-6269 Adjunct Principal Investigator Phillip L. Pearl, M.D Boston 300 Longwood 202- 884-5439 [email protected] Children’s Avenue Hospital, 9th floor Boston, MA Boston, MA 02115 Lead Associate Investigator William H Theodore CES/NINDS 10/7D-43 301-496-1505 [email protected] MD Associate Investigators Rosemarie NINDS CTU 10-CRC [email protected] Cuento CRNP 7-5644 301-451-9284 John CNMC NEUROLOGY [email protected] Schreiber MD Washington DC 202-884-5439 Eric BNU DIR NINDS 10/7D-41 [email protected] Wassermann MD K Michael Professor and Chair) PBS Building [email protected] Gibson PhD WSU College of room 347 Pharmacy 412 E. Spokane Falls Blvd Spokane, WA 99202 -
Behavior of Α-Tomatine and Tomatidine Against Several Genera of Trypanosomatids from Insects and Plants and Trypanosoma Cruzi
Acta Scientiarum http://periodicos.uem.br/ojs/acta ISSN on-line: 1807-863X Doi: 10.4025/actascibiolsci.v40i1.41853 BIOTECHNOLOGY Behavior of α-tomatine and tomatidine against several genera of trypanosomatids from insects and plants and Trypanosoma cruzi Adriane Feijó Evangelista1, Erica Akemi Kavati2, Jose Vitor Jankevicius3 and Rafael Andrade Menolli4* 1Centro de Pesquisa em Oncologia Molecular, Hospital de Câncer de Barretos, Barretos, São Paulo, Brazil. 2Laboratório de Genética, Instituto Butantan, São Paulo, São Paulo, Brazil. 3Departamento de Microbiologia, Universidade Estadual de Londrina, Londrina, Paraná, Brazil. 4Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, 85819-110, Cascavel, Paraná, Brazil. *Author for correspondence. E-mail: [email protected] ABSTRACT. Glycoalkaloids are important secondary metabolites accumulated by plants as protection against pathogens. One of them, α-tomatine, is found in high concentrations in green tomato fruits, while in the ripe fruits, its aglycone form, tomatidine, does not present a protective effect, and it is usual to find parasites of tomatoes like Phytomonas serpens in these ripe fruits. To investigate the sensitivity of trypanosomatids to the action of α-tomatine, we used logarithmic growth phase culture of 20 trypanosomatids from insects and plants and Trypanosoma cruzi. The lethal dose 50% (LD50) was determined by mixing 107 cells of the different isolates with α-tomatine at concentrations ranging from 10-3 to 10-8 M for 30 min at room temperature. The same tests performed with the tomatidine as a control showed no detectable toxicity against the same trypanosomatid cultures. The tests involved determination of the percentage (%) survival of the protozoan cultures in a Neubauer chamber using optical microscopy. -
Chloroform 18.08.2020.Pdf
Chloroform Chloroform, or trichloromethane, is an organic compound with formula CHCl3. It is a colorless, sweet-smelling, dense liquid that is produced on a large scale as a precursor to PTFE. It is also a precursor to various refrigerants. It is one of the four chloromethanes and a trihalomethane. It is a powerful anesthetic, euphoriant, anxiolytic and sedative when inhaled or ingested. Formula: CHCl₃ IUPAC ID: Trichloromethane Molar mass: 119.38 g/mol Boiling point: 61.2 °C Density: 1.49 g/cm³ Melting point: -63.5 °C The molecule adopts a tetrahedral molecular geometry with C3v symmetry. Chloroform volatilizes readily from soil and surface water and undergoes degradation in air to produce phosgene, dichloromethane, formyl chloride, carbon monoxide, carbon dioxide, and hydrogen chloride. Its half-life in air ranges from 55 to 620 days. Biodegradation in water and soil is slow. Chloroform does not significantly bioaccumulate in aquatic organisms. Production:- In industry production, chloroform is produced by heating a mixture of chlorine and either chloromethane (CH3Cl) or methane (CH4). At 400–500 °C, a free radical halogenation occurs, converting these precursors to progressively more chlorinated compounds: CH4 + Cl2 → CH3Cl + HCl CH3Cl + Cl2 → CH2Cl2 + HCl CH2Cl2 + Cl2 → CHCl3 + HCl Chloroform undergoes further chlorination to yield carbon tetrachloride (CCl4): CHCl3 + Cl2 → CCl4 + HCl The output of this process is a mixture of the four chloromethanes (chloromethane, dichloromethane, chloroform, and carbon tetrachloride), which can then be separated by distillation. Chloroform may also be produced on a small scale via the haloform reaction between acetone and sodium hypochlorite: 3 NaClO + (CH3)2CO → CHCl3 + 2 NaOH + CH3COONa Deuterochloroform[ Deuterated chloroform is an isotopologue of chloroform with a single deuterium atom. -
Alpha-Tomatine Content in Tomato and Tomato Products Determined By
J. Agric. Food Chem. 1995, 43, 1507-151 1 1507 a-Tomatine Content in Tomato and Tomato Products Determined by HPLC with Pulsed Amperometric Detection Mendel Friedman* and Carol E. Levin Food Safety and Health Research Unit, Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 800 Buchanan Street, Albany, California 94710 Tomato plants (Lycopersicon esculentum) synthesize the glycoalkaloid a-tomatine, possibly as a defense against insects and other pests. As part of an effort to improve the safety of plant foods, the usefulness of a new HPLC pulsed amperometric detection (PAD) method for the direct analysis of a-tomatine in different parts of the tomato plant; in store-bought and field-grown, including transgenic, tomatoes; in a variety of commercial and home-processed tomato products; and in eggplant and tomatillos was evaluated. The method was found to be useful for analysis of a variety of products including high-tomatine calyxes, flowers, leaves, roots, and stems of the tomato plant (14-130 mg/100 g of fresh weight), low-tomatine red tomatoes (0.03-0.08 mg/100 g), intermediate- tomatine tomatoes (0.1-0.8 mg/100 g), and high-tomatine fresh and processed green, including pickled and fried, tomatoes (0.9-55 mg/100 g). No experimental difficulties were encountered with extraction and analysis of tomatine in complex foods such as tomato juice, ketchup, salsa, sauce, and sun-dried tomatoes. Microwaving and frying did not significantly affect tomatine levels of tomato foods. The tomatine content of fresh market and transgenic delayed-ripening varieties was not different from the range ordinarily seen in tomato. -
Tomatine Adjuvantation of Protective Immunity to a Major Pre-Erythrocytic Vaccine Candidate of Malaria Is Mediated Via CD8+ T Cell Release of IFN-Γ
Hindawi Publishing Corporation Journal of Biomedicine and Biotechnology Volume 2010, Article ID 834326, 7 pages doi:10.1155/2010/834326 Research Article Tomatine Adjuvantation of Protective Immunity to a Major Pre-erythrocytic Vaccine Candidate of Malaria is Mediated via CD8+ T Cell Release of IFN-γ Karen G. Heal1, 2 and Andrew W. Taylor-Robinson1 1 Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK 2 Department of Biology, University of York, York YO10 5YW, UK Correspondence should be addressed to Andrew W. Taylor-Robinson, [email protected] Received 1 August 2009; Revised 26 October 2009; Accepted 8 January 2010 Academic Editor: Abhay R. Satoskar Copyright © 2010 K. G. Heal and A. W. Taylor-Robinson. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The glycoalkaloid tomatine, derived from the wild tomato, can act as a powerful adjuvant to elicit an antigen-specific cell-mediated immune response to the circumsporozoite (CS) protein, a major pre-erythrocytic stage malaria vaccine candidate antigen. Using a defined MHC-class-I-restricted CS epitope in a Plasmodium berghei rodent model, antigen-specific cytotoxic T lymphocyte activity and IFN-γ secretion ex vivo were both significantly enhanced compared to responses detected from similarly stimulated splenocytes from naive and tomatine-saline-immunized mice. Further, through lymphocyte depletion it is demonstrated that antigen-specific IFN-γ is produced exclusively by the CD8+ T cell subset. -
Figure 1. Metabolism of Glucoraphanin and Glucobrassicin to Biologically Active Metabolites
Legend to Figures: Figure 1. Metabolism of glucoraphanin and glucobrassicin to biologically active metabolites. (A) Sulforaphane is released from glucoraphanin by the plant enzyme myrosinase. Red dashed arrow marks the reactive carbon atom subject to glutathione conjugation. (B) Sulforaphane is metabolized via the mercapturic acid pathway into active metabolites. Glutathione-S-transferase (GST) first conjugates a GSH molecule (Glu-Cys-Gly) to the reactive carbon on sulforaphane. Glutamate is then removed by γ- glutamyltranspeptidase (GTP), followed by removal of the glycine residue by cysteinylglycinase (CGase). Cysteine is then acetylated by an acetyltransferase (AT) to sulforaphane-N-acetylcysteine, which is excreted in the urine. (C) Indole-3-carbinol is released from the glucosinolate glucobrassicin by myrosinase and undergoes spontaneous condensation in the acidic environment of the gut. Diindolylmethane (DIM) is the most abundant post-absorption acid condensation product. Acid condensation products can be modified further post-absorption. LTr1: Linear trimer 1. LTr2: Linear trimer 2. Structures from PubChem at National Center for Biotechnology Information (NCBI). Figure 2. Selected non-epigenetic effects of sulforaphane and I3C/DIM on prostate cancer cells. Sulforaphane (SFN) and I3C/DIM inhibit the Akt signaling axis, a signaling pathway often hyperactive in prostate cancer. Inhibition of this pathway decreases pro-survival signaling by mTOR, Akt, and NFkB. Sulforaphane and I3C/DIM treatment also lead to changes in gene expression (blue arrow) that trigger growth arrest and apoptosis. The expression of proteins controlling the cell cycle (e.g. p21, p27, CDK6) are altered to effect growth arrest, and apoptosis is finally induced through the mitochondrial pathway. Abbreviations: AR – Androgen Receptor, CDK6 – cyclin dependant kinase 6, IAP – inhibitors of apoptosis. -
Bioinorganic Chemistry Content
Bioinorganic Chemistry Content 1. What is bioinorganic chemistry? 2. Evolution of elements 3. Elements and molecules of life 4. Phylogeny 5. Metals in biochemistry 6. Ligands in biochemistry 7. Principals of coordination chemistry 8. Properties of bio molecules 9. Biochemistry of main group elements 10. Biochemistry of transition metals 11. Biochemistry of lanthanides and actinides 12. Modell complexes 13. Analytical methods in bioinorganic 14. Applications areas of bioinorganic chemistry "Simplicity is the ultimate sophistication" Leonardo Da Vinci Bioinorganic Chemistry Slide 1 Prof. Dr. Thomas Jüstel Literature • C. Elschenbroich, A. Salzer, Organometallchemie, 2. Auflage, Teubner, 1988 • S.J. Lippard, J.N. Berg, Bioinorganic Chemistry, Spektrum Akademischer Verlag, 1995 • J.E. Huheey, E. Keiter, R. Keiter, Anorganische Chemie – Prinzipien von Struktur und Reaktivität, 3. Auflage, Walter de Gruyter, 2003 • W. Kaim, B. Schwederski: Bioinorganic Chemistry, 4. Auflage, Vieweg-Teubner, 2005 • H. Rauchfuß, Chemische Evolution und der Ursprung des Lebens, Springer, 2005 • A.F. Hollemann, N. Wiberg, Lehrbuch der Anorganischen Chemie, 102. Auflage, de Gruyter, 2007 • I. Bertini, H.B. Gray, E.I. Stiefel, J.S. Valentine, Biological Chemistry, University Science Books, 2007 • N. Metzler-Nolte, U. Schatzschneier, Bioinorganic Chemistry: A Practical Course, Walter de Gruyter, 2009 • W. Ternes, Biochemie der Elemente, Springer, 2013 • D. Rabinovich, Bioinorganic Chemistry, Walter de Gruyter, 2020 Bioinorganic Chemistry Slide 2 Prof. Dr. Thomas Jüstel 1. What is Bioinorganic Chemistry? A Highly Interdisciplinary Science at the Verge of Biology, Chemistry, Physics, and Medicine Biochemistry Inorganic Chemistry (Micro)- Physics & Biology Spectroscopy Bioinorganic Chemistry Pharmacy & Medicine & Toxicology Physiology Diagnostics Bioinorganic Chemistry Slide 3 Prof. Dr. Thomas Jüstel 2. Evolution of the Elements Most Abundant Elements in the Universe According to Atomic Fraction Are: 1. -
Shilin Yang Doctor of Philosophy
PHYTOCHEMICAL STUDIES OF ARTEMISIA ANNUA L. THESIS Presented by SHILIN YANG For the Degree of DOCTOR OF PHILOSOPHY of the UNIVERSITY OF LONDON DEPARTMENT OF PHARMACOGNOSY THE SCHOOL OF PHARMACY THE UNIVERSITY OF LONDON BRUNSWICK SQUARE, LONDON WC1N 1AX ProQuest Number: U063742 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a com plete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. uest ProQuest U063742 Published by ProQuest LLC(2017). Copyright of the Dissertation is held by the Author. All rights reserved. This work is protected against unauthorized copying under Title 17, United States C ode Microform Edition © ProQuest LLC. ProQuest LLC. 789 East Eisenhower Parkway P.O. Box 1346 Ann Arbor, Ml 48106- 1346 ACKNOWLEDGEMENT I wish to express my sincere gratitude to Professor J.D. Phillipson and Dr. M.J.O’Neill for their supervision throughout the course of studies. I would especially like to thank Dr. M.F.Roberts for her great help. I like to thank Dr. K.C.S.C.Liu and B.C.Homeyer for their great help. My sincere thanks to Mrs.J.B.Hallsworth for her help. I am very grateful to the staff of the MS Spectroscopy Unit and NMR Unit of the School of Pharmacy, and the staff of the NMR Unit, King’s College, University of London, for running the MS and NMR spectra. -
Novel Reactions of Ceph-3-Ems
NOVEL REACTIONS OF CEPH-3-EMS Jacqueline M Torrance B.Sc. (Hons) A thesis submitted in partial fulfilment of the requirements of the University of Abertay Dundee for the degree of Doctor of Philosophy June 1995 I certify that this thesis is the true and accurate version of the thesis approved by the examiners. Signed Date (Director of Studies) DECLARATION I hereby declare that the work presented in this thesis was carried out by me at University of Abertay Dundee, Dundee, except where due acknowledgement is made, and has not been submitted by me for any other degree. Signed Date CONTENTS 1 INTRODUCTION 1 1.1 INTRODUCTION 2 1.1.1 History of Penicillin 2 1.1.2 History of Cephalosporins 4 1.2 REACTIONS AT SULPHUR 7 1.2.1 Oxidation 7 1.2.2 De-oxygenation 13 1.3 REACTIONS AT C-2 15 1.3.1 2-Alkylcephems 15 1.3.2 2-Alkoxycephems 17 1.3.3 2-Exocyclic Cephems 22 1.4 REACTIONS AT C-3 30 1.4.1 3-Exomethylene 30 1.4.2 3-Vinyl-and 3-Allylcephalosporins 38 1.4.3 3-Azidocephems 42 1.4.4 3-Alkoxy- and 3-Alkylcephems 44 1.5 REACTIONS AT C-4 46 1.5.1 A2-Cephems 46 1.5.2 Addition to the A3-Double Bond 51 1.5.3 Reactions at the C-4 Carboxyl Group 54 1.5.4 Ester Formation and Deprotection 59 1.6 REACTIONS AT C-7 62 1.6.1 7a-Methoxycephalosporins 62 1.6.2 7a-Formamidocephalosporins 66 1.6.3 Other 7a-Substituents 69 ii 1.6.4 7-Spirocyclic Cephalosporins 71 1.6.5 Reactions at N-7 73 1.7 MISCELLANEOUS CEPHALOSPORIN REACTIONS 74 1.7.1 Conversion of Penicillin to Cephalosporins 74 1.7.2 Conversion of Cephalosporins to Penicillins 78 1.7.3 Tricyclics and Tetracyclics -
Isothiocyanates from Cruciferous Vegetables
Isothiocyanates from Cruciferous Vegetables: Kinetics, Biomarkers and Effects Martijn Vermeulen Promotoren Prof. dr. Peter J. van Bladeren Hoogleraar Toxicokinetiek en Biotransformatie, leerstoelgroep Toxicologie, Wageningen Universiteit Prof. dr. ir. Ivonne M.C.M. Rietjens Hoogleraar Toxicologie, Wageningen Universiteit Copromotor Dr. Wouter H.J. Vaes Productmanager Nutriënten en Biomarker analyse, TNO Kwaliteit van Leven, Zeist Promotiecommissie Prof. dr. Aalt Bast Universiteit Maastricht Prof. dr. ir. M.A.J.S. (Tiny) van Boekel Wageningen Universiteit Prof. dr. Renger Witkamp Wageningen Universiteit Prof. dr. Ruud A. Woutersen Wageningen Universiteit / TNO, Zeist Dit onderzoek is uitgevoerd binnen de onderzoeksschool VLAG (Voeding, Levensmiddelen- technologie, Agrobiotechnologie en Gezondheid) Isothiocyanates from Cruciferous Vegetables: Kinetics, Biomarkers and Effects Martijn Vermeulen Proefschrift ter verkrijging van de graad van doctor op gezag van de rector magnificus van Wageningen Universiteit, prof. dr. M.J. Kropff, in het openbaar te verdedigen op vrijdag 13 februari 2009 des namiddags te half twee in de Aula. Title Isothiocyanates from cruciferous vegetables: kinetics, biomarkers and effects Author Martijn Vermeulen Thesis Wageningen University, Wageningen, The Netherlands (2009) with abstract-with references-with summary in Dutch ISBN 978-90-8585-312-1 ABSTRACT Cruciferous vegetables like cabbages, broccoli, mustard and cress, have been reported to be beneficial for human health. They contain glucosinolates, which are hydrolysed into isothiocyanates that have shown anticarcinogenic properties in animal experiments. To study the bioavailability, kinetics and effects of isothiocyanates from cruciferous vegetables, biomarkers of exposure and for selected beneficial effects were developed and validated. As a biomarker for intake and bioavailability, isothiocyanate mercapturic acids were chemically synthesised as reference compounds and a method for their quantification in urine was developed. -
Analysis of the Binding and Interaction Patterns of 100 Flavonoids with the Pneumococcal Virulent Protein Pneumolysin: an in Silico Virtual Screening Approach
Available online a t www.scholarsresearchlibrary.com Scholars Research Library Der Pharmacia Lettre, 2016, 8 (16):40-51 (http://scholarsresearchlibrary.com/archive.html) ISSN 0975-5071 USA CODEN: DPLEB4 Analysis of the binding and interaction patterns of 100 flavonoids with the Pneumococcal virulent protein pneumolysin: An in silico virtual screening approach Udhaya Lavinya B., Manisha P., Sangeetha N., Premkumar N., Asha Devi S., Gunaseelan D. and Sabina E. P.* 1School of Biosciences and Technology, VIT University, Vellore - 632014, Tamilnadu, India 2Department of Computer Science, College of Computer Science & Information Systems, JAZAN University, JAZAN-82822-6694, Kingdom of Saudi Arabia. _____________________________________________________________________________________________ ABSTRACT Pneumococcal infection is one of the major causes of morbidity and mortality among children below 2 years of age in under-developed countries. Current study involves the screening and identification of potent inhibitors of the pneumococcal virulence factor pneumolysin. About 100 flavonoids were chosen from scientific literature and docked with pnuemolysin (PDB Id.: 4QQA) using Patch Dockprogram for molecular docking. The results obtained were analysed and the docked structures visualized using LigPlus software. It was found that flavonoids amurensin, diosmin, robinin, rutin, sophoroflavonoloside, spiraeoside and icariin had hydrogen bond interactions with the receptor protein pneumolysin (4QQA). Among others, robinin had the highest score (7710) revealing that it had the best geometrical fit to the receptor molecule forming 12 hydrogen bonds ranging from 0.8-3.3 Å. Keywords : Pneumococci, pneumolysin, flavonoids, antimicrobial, virtual screening _____________________________________________________________________________________________ INTRODUCTION Streptococcus pneumoniae is a gram positive pathogenic bacterium causing opportunistic infections that may be life-threating[1]. Pneumococcus is the causative agent of pneumonia and is the most common agent causing meningitis.