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WADA Technical Letter – TL07 ANDARINE
WADA Technical Letter – TL07 Document Number: TL07 Version Number: 3.0 Written by: WADA Science Approved by: WADA Executive Committee Reviewed by: WADA Laboratory Expert Group Date: 21 December 2020 Effective Date: 1 January 2021 ANDARINE - FLUTAMIDE 1.0 Introduction WADA wishes to draw the attention of the Laboratories to the following observations and instructions on the analysis and reporting of SARM S4 (Andarine) Metabolites O-dephenylandarine and O- dephenylandarine glucuronide. The andarine Metabolites O-dephenylandarine and of O-dephenylandarine glucuronide may also be present in a Sample as a Metabolite of the anti-androgen Flutamide (Drogenil®, Eulexin®, Euflex®, Flutamin®, Flugere®), used primarily in the treatment of prostate cancer [1]. Since flutamide is not a Prohibited Substance in sports, the Laboratories shall not report an Adverse Analytical Finding (AAF) for andarine based on the monitoring of O-dephenylandarine [2]. Figure 1. Proposed metabolic pathway of flutamide and andarine (adapted from Perrenoud et al. [1]). 2.0 Analysis and Reporting Requirements Report the result as an AAF for andarine only when the presence of andarine (parent compound), and/or its glucuronic acid conjugate, and/or its deacetylated and/or hydroxylated Metabolites, and/or its bishydroxylated product [2] are confirmed in the Sample (regardless of the presence of flutamide and/or its Metabolite 2-hydroxyflutamide); [Comment: Laboratories shall not report an AAF for andarine based only on the presence of O- dephenylandarine.] 3.0 References [1] Perrenoud L. et al. Risk of false positive results to SARM S4 in case of therapeutic use of antineoplastic/antiandrogen drug containing flutamide: a case study. -
615 Neuroscience-Cayman-Bertin
Thomas G. Brock, Ph.D. Introduction to Neuroscience In our first Biology classes, we learned that lipids form the membranes around cells. For many students, interests quickly moved to the intracellular constituents ‘that really matter’, or to how cells or systems work in health and disease. If there was further thought about lipids, it might have been limited to more personal issues, like an expanding waistline. It was easy to forget about lipids in the complexities of, say, Alzheimer’s Disease, where tau protein is hyperphosphorylated by a host of kinases before forming neurofibrillary tangles and amyloid precursor protein is processed by assorted secretases, ultimately aggregating to form neurodegenerating plaques. What possible role could lipids have in all this? After all, lipids just form the membranes around cells. Fortunately, neuroscientists study complex systems. Whether working at the molecular, cellular, or organismal level, the research focus always returns to the intricately interconnected bigger picture. Perhaps surprisingly, lipids keep emerging as part of the bigger picture. At least, the smaller lipids do. Many of the smaller lipids, including the cannabinoids and eicosanoids, act as paracrine hormones, modulating cell functions in a receptor-mediated fashion. In this sense, they are rather like the peptide hormones in their diversity and actions. In the neurosystem, this means that these signaling lipids determine if synapses fire or not, when cells differentiate or die, and whether tissues remain healthy or become inflamed. Returning to the question posed above about lipids in Alzheimer’s, these mediators have roles at many levels in the course of the disease, as presented in an article on page 42 of this catalog. -
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. -
Opportunities and Pharmacotherapeutic Perspectives
biomolecules Review Anticoronavirus and Immunomodulatory Phenolic Compounds: Opportunities and Pharmacotherapeutic Perspectives Naiara Naiana Dejani 1 , Hatem A. Elshabrawy 2 , Carlos da Silva Maia Bezerra Filho 3,4 and Damião Pergentino de Sousa 3,4,* 1 Department of Physiology and Pathology, Federal University of Paraíba, João Pessoa 58051-900, Brazil; [email protected] 2 Department of Molecular and Cellular Biology, College of Osteopathic Medicine, Sam Houston State University, Conroe, TX 77304, USA; [email protected] 3 Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, Brazil; [email protected] 4 Postgraduate Program in Bioactive Natural and Synthetic Products, Federal University of Paraíba, João Pessoa 58051-900, Brazil * Correspondence: [email protected]; Tel.: +55-83-3216-7347 Abstract: In 2019, COVID-19 emerged as a severe respiratory disease that is caused by the novel coronavirus, Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). The disease has been associated with high mortality rate, especially in patients with comorbidities such as diabetes, cardiovascular and kidney diseases. This could be attributed to dysregulated immune responses and severe systemic inflammation in COVID-19 patients. The use of effective antiviral drugs against SARS-CoV-2 and modulation of the immune responses could be a potential therapeutic strategy for Citation: Dejani, N.N.; Elshabrawy, COVID-19. Studies have shown that natural phenolic compounds have several pharmacological H.A.; Bezerra Filho, C.d.S.M.; properties, including anticoronavirus and immunomodulatory activities. Therefore, this review de Sousa, D.P. Anticoronavirus and discusses the dual action of these natural products from the perspective of applicability at COVID-19. -
Ilamycin C Induces Apoptosis and Inhibits Migration and Invasion In
Xie et al. Journal of Hematology & Oncology (2019) 12:60 https://doi.org/10.1186/s13045-019-0744-3 RESEARCH Open Access Ilamycin C induces apoptosis and inhibits migration and invasion in triple-negative breast cancer by suppressing IL-6/STAT3 pathway Qing Xie1†, Zhijie Yang2†, Xuanmei Huang1, Zikang Zhang1, Jiangbin Li1, Jianhua Ju2*, Hua Zhang1* and Junying Ma2* Abstract Background: Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer with poor prognosis, and its treatment remains a challenge due to few targeted medicines and high risk of relapse, metastasis, and drug resistance. Thus, more effective drugs and new regimens for the therapy of TNBC are urgently needed. Ilamycins are a kind of cyclic peptides and produced by Streptomyces atratus and Streptomyces islandicus with effective anti-tuberculosis activity. Ilamycin C is a novel compound isolated from the deep South China Sea- derived Streptomyces atratus SCSIO ZH16 and exhibited a strong cytotoxic activity against several cancers including breast cancer cell line MCF7. However, the cytotoxic activity of Ilamycin C to TNBC cells and a detailed antitumor mechanism have not been reported. Methods: CCK-8 assays were used to examine cell viability and cytotoxic activity of Ilamycin C to TNBC, non-TNBC MCF7, and nonmalignant MCF10A cells. EdU assays and flow cytometry were performed to assess cell proliferation and cell apoptosis. Transwell migration and Matrigel invasion assays were utilized to assess the migratory and invading capacity of TNBC cells following the treatment of Ilamycin C. The expressions of proteins were detected by western blot. Results: In this study, we found that Ilamycin C has more preferential cytotoxicity in TNBC cells than non-TNBC MCF7 and nonmalignant MCF10A cells. -
Cannabinoids and Endocannabinoid System Changes in Intestinal Inflammation and Colorectal Cancer
cancers Review Cannabinoids and Endocannabinoid System Changes in Intestinal Inflammation and Colorectal Cancer Viktoriia Cherkasova, Olga Kovalchuk * and Igor Kovalchuk * Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 7X8, Canada; [email protected] * Correspondence: [email protected] (O.K.); [email protected] (I.K.) Simple Summary: In recent years, multiple preclinical studies have shown that changes in endo- cannabinoid system signaling may have various effects on intestinal inflammation and colorectal cancer. However, not all tumors can respond to cannabinoid therapy in the same manner. Given that colorectal cancer is a heterogeneous disease with different genomic landscapes, experiments with cannabinoids should involve different molecular subtypes, emerging mutations, and various stages of the disease. We hope that this review can help researchers form a comprehensive understanding of cannabinoid interactions in colorectal cancer and intestinal bowel diseases. We believe that selecting a particular experimental model based on the disease’s genetic landscape is a crucial step in the drug discovery, which eventually may tremendously benefit patient’s treatment outcomes and bring us one step closer to individualized medicine. Abstract: Despite the multiple preventive measures and treatment options, colorectal cancer holds a significant place in the world’s disease and mortality rates. The development of novel therapy is in Citation: Cherkasova, V.; Kovalchuk, critical need, and based on recent experimental data, cannabinoids could become excellent candidates. O.; Kovalchuk, I. Cannabinoids and This review covered known experimental studies regarding the effects of cannabinoids on intestinal Endocannabinoid System Changes in inflammation and colorectal cancer. In our opinion, because colorectal cancer is a heterogeneous Intestinal Inflammation and disease with different genomic landscapes, the choice of cannabinoids for tumor prevention and Colorectal Cancer. -
Specifications of Approved Drug Compound Library
Annexure-I : Specifications of Approved drug compound library The compounds should be structurally diverse, medicinally active, and cell permeable Compounds should have rich documentation with structure, Target, Activity and IC50 should be known Compounds which are supplied should have been validated by NMR and HPLC to ensure high purity Each compound should be supplied as 10mM solution in DMSO and at least 100µl of each compound should be supplied. Compounds should be supplied in screw capped vial arranged as 96 well plate format. -
Thromboxane A2 Receptor Antagonist SQ29548 Attenuates SH‑SY5Y Neuroblastoma Cell Impairments Induced by Oxidative Stress
INTERNATIONAL JOURNAL OF MOleCular meDICine 42: 479-488, 2018 Thromboxane A2 receptor antagonist SQ29548 attenuates SH‑SY5Y neuroblastoma cell impairments induced by oxidative stress GAOYU CAI1*, AIJUAN YAN2*, NINGZHEN FU3 and YI FU1 1Department of Neurology, Rui Jin Hospital, Shanghai Jiao Tong University, Shanghai 200025; 2Department of Neurology, Xin Hua Hospital, Shanghai Jiao Tong University, Shanghai 200082; 3Department of Pancreatic Surgery, Rui Jin College of Clinical Medicine, Rui Jin Hospital, Shanghai Jiao Tong University, Shanghai 200025, P.R. China Received September 28, 2017; Accepted March 21, 2018 DOI: 10.3892/ijmm.2018.3589 Abstract. Thromboxane A2 receptor (TXA2R) serves a vital SQ29548, an antagonist of TXA2R, improved the antioxidant role in numerous neurological disorders. Our previous study capacities of SH-SY5Y cells and reduced the cell apoptosis indicated that SQ29548, an antagonist of TXA2R, attenuated through the inhibition of MAPK pathways. the induced neuron damage in cerebral infarction animals; however, the underlying mechanism remains unknown. Introduction Certain studies revealed a new role of TXA2R in the regula- tion of oxidative stress, which is one of the basic pathological Thromboxane A2 receptor (TXA2R), a member of the G processes in neurological disorders. Thus, the present study protein-coupled receptor family (1), is broadly distributed attempted to examine whether the inhibition of TXA2R with in platelets (2), as well as epithelial (3), smooth muscle (4), SQ29548 helped to protect the nerve cells against oxidative glial and nerve cells in the brain (5). TXA2R is regarded as a stress. SQ29548 was utilized as a TXA2R antagonist, and traditional coagulation and inflammation‑associated receptor, relevant assays were performed to detect the cell viability, which is also closely associated with neurological disorders. -
The Detection and Determination of Esters
Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1958 The etD ection and Determination of Esters. Mohd. Mohsin Qureshi Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Qureshi, Mohd. Mohsin, "The eD tection and Determination of Esters." (1958). LSU Historical Dissertations and Theses. 501. https://digitalcommons.lsu.edu/gradschool_disstheses/501 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. Copright by Mohcl Mohsin Qureshi 1959 THE DETECTION AND DETERMINATION OF ESTERS A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Department of Chemistry by Mohd. Mohsin Qureshi M.Sc., Aligarh University, 1944 August, 1958 ACKNOWLEDGMENT The author wishes to express his sincere apprecia tion and gratitude to Dr. Philip W. West under whose guidance this research was carried out. He is grateful to Dr. James G. Traynham for sup plying him with a number of esters and for his many helpful suggestions. The financial support given to him by the Continental Oil Company is gratefully acknowledged. He offers his sincere thanks to Miss Magdalena Usategul for her valuable suggestions and her ungrudging help during the course of this investigation. Dr. Anil K. -
Analytical Performance of an Immunoassay to Measure Proenkephalin ⁎ Leslie J
Clinical Biochemistry xxx (xxxx) xxx–xxx Contents lists available at ScienceDirect Clinical Biochemistry journal homepage: www.elsevier.com/locate/clinbiochem Analytical performance of an immunoassay to measure proenkephalin ⁎ Leslie J. Donatoa, ,Jeffrey W. Meeusena, John C. Lieskea, Deborah Bergmannc, Andrea Sparwaßerc, Allan S. Jaffea,b a Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, United States b Division of Cardiology, Mayo Clinic, Rochester, MN 55905, United States c Sphingotec GmbH, Hennigsdorf, Germany ARTICLE INFO ABSTRACT Keywords: Background: Endogenous opioids, enkephalins, are known to increase with acute kidney injury. Since the mature Biomarkers pentapeptides are unstable, we evaluated the performance of an assay that measures proenkephalin 119–159 Proenkephalin (PENK), a stable peptide formed concomitantly with mature enkephalins. Enkephalin Methods: PENK assay performance was evaluated on two microtiterplate/chemiluminescence sandwich im- Pro-enkephalin munoassay formats that required 18 or 1 h incubation times. PENK concentration was measured in plasma from penKid healthy individuals to establish a reference interval and in patients with varied levels of kidney function and Assay validation comorbidities to assess the association with measured glomerular filtration rate (mGFR) using iothalamate clearance. Results: Assay performance characteristics in plasma were similar between the assay formats. Limit of quanti- tation was 26.0 pmol/L (CV = 20%) for the 1 h assay and 17.3 pmol/L (CV = 3%) for the 18 h assay. Measurable ranges were 26–1540 pmol/L (1 h assay) and 18–2300 pmol/L (18 h assay). PENK concentrations are stable in plasma stored ambient to 10 days, refrigerated to at least 15 days, and frozen to at least 90 days. -
Molecular Dynamics Simulations in Drug Discovery and Pharmaceutical Development
processes Review Molecular Dynamics Simulations in Drug Discovery and Pharmaceutical Development Outi M. H. Salo-Ahen 1,2,* , Ida Alanko 1,2, Rajendra Bhadane 1,2 , Alexandre M. J. J. Bonvin 3,* , Rodrigo Vargas Honorato 3, Shakhawath Hossain 4 , André H. Juffer 5 , Aleksei Kabedev 4, Maija Lahtela-Kakkonen 6, Anders Støttrup Larsen 7, Eveline Lescrinier 8 , Parthiban Marimuthu 1,2 , Muhammad Usman Mirza 8 , Ghulam Mustafa 9, Ariane Nunes-Alves 10,11,* , Tatu Pantsar 6,12, Atefeh Saadabadi 1,2 , Kalaimathy Singaravelu 13 and Michiel Vanmeert 8 1 Pharmaceutical Sciences Laboratory (Pharmacy), Åbo Akademi University, Tykistökatu 6 A, Biocity, FI-20520 Turku, Finland; ida.alanko@abo.fi (I.A.); rajendra.bhadane@abo.fi (R.B.); parthiban.marimuthu@abo.fi (P.M.); atefeh.saadabadi@abo.fi (A.S.) 2 Structural Bioinformatics Laboratory (Biochemistry), Åbo Akademi University, Tykistökatu 6 A, Biocity, FI-20520 Turku, Finland 3 Faculty of Science-Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, 3584 CH Utrecht, The Netherlands; [email protected] 4 Swedish Drug Delivery Forum (SDDF), Department of Pharmacy, Uppsala Biomedical Center, Uppsala University, 751 23 Uppsala, Sweden; [email protected] (S.H.); [email protected] (A.K.) 5 Biocenter Oulu & Faculty of Biochemistry and Molecular Medicine, University of Oulu, Aapistie 7 A, FI-90014 Oulu, Finland; andre.juffer@oulu.fi 6 School of Pharmacy, University of Eastern Finland, FI-70210 Kuopio, Finland; maija.lahtela-kakkonen@uef.fi (M.L.-K.); tatu.pantsar@uef.fi -
204569Orig1s000
CENTER FOR DRUG EVALUATION AND RESEARCH APPLICATION NUMBER: 204569Orig1s000 MEDICAL REVIEW(S) Cross Discipline Team Leader Review 3. CMC/Device Dr. Khairuzzaman found the drug product portion of the NDA to be acceptable, and without need for phase 4 commitments. Dr. Sapru’s review stated that with the exception of a pending issue concerning the control of potential genotoxic impurity (b) (4) the NDA was approvable in terms of drug substance. Dr. Suarez found that the NDA was acceptable from a biopharmaceutics perspective. The Office of Compliance issuance of an acceptable recommendation for drug substance manufacturing and testing facilities was pending at the time of this review. 4. Nonclinical Pharmacology/Toxicology Dr. Richard Siarey completed the primary nonclinical review, and Dr. Lois Freed completed a supervisory memo. Dr. Siarey’s overall conclusion was that from a nonclinical perspective, approval of the suvorexant NDA was recommended. However, he found evidence that catapelxy was observed in dogs exposed to MK-4305 (suvorexant) near Tmax, although he concluded that additional information could have been gained by studying the drug in an experimental model that has been used for diagnosing cataplexy in dogs. Dr. Siarey suggested that since cataplexy occurred in dogs near Tmax, a time at which if used for insomnia patients would ordinarily be in bed, safety concern for humans was reduced. Dr. Siarey also found that the neurobehavioral assessment in the pre- and post-natal developmental study was not complete, as the passive avoidance tests was performed too early in development, while learning/acquisition tests and retention/memory tests were not conducted.