Molecular Mechanisms of Addiction
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Amphetamine Sensitization Alters Hippocampal Neuronal Morphology and Memory and Learning Behaviors
Molecular Psychiatry https://doi.org/10.1038/s41380-020-0809-2 ARTICLE Amphetamine sensitization alters hippocampal neuronal morphology and memory and learning behaviors 1,2,5 1,2 1 Luis Enrique Arroyo-García ● Hiram Tendilla-Beltrán ● Rubén Antonio Vázquez-Roque ● 1 3 3 3 1 Erick Ernesto Jurado-Tapia ● Alfonso Díaz ● Patricia Aguilar-Alonso ● Eduardo Brambila ● Eduardo Monjaraz ● 2 4 1 Fidel De La Cruz ● Antonio Rodríguez-Moreno ● Gonzalo Flores Received: 12 November 2019 / Revised: 29 May 2020 / Accepted: 3 June 2020 © The Author(s), under exclusive licence to Springer Nature Limited 2020 Abstract It is known that continuous abuse of amphetamine (AMPH) results in alterations in neuronal structure and cognitive behaviors related to the reward system. However, the impact of AMPH abuse on the hippocampus remains unknown. The aim of this study was to determine the damage caused by AMPH in the hippocampus in an addiction model. We reproduced the AMPH sensitization model proposed by Robinson et al. in 1997 and performed the novel object recognition test (NORt) to evaluate learning and memory behaviors. After the NORt, we performed Golgi–Cox staining, a 1234567890();,: 1234567890();,: stereological cell count, immunohistochemistry to determine the presence of GFAP, CASP3, and MT-III, and evaluated oxidative stress in the hippocampus. We found that AMPH treatment generates impairment in short- and long-term memories and a decrease in neuronal density in the CA1 region of the hippocampus. The morphological test showed an increase in the total dendritic length, but a decrease in the number of mature spines in the CA1 region. GFAP labeling increased in the CA1 region and MT-III increased in the CA1 and CA3 regions. -
Medications to Treat Opioid Use Disorder Research Report
Research Report Revised Junio 2018 Medications to Treat Opioid Use Disorder Research Report Table of Contents Medications to Treat Opioid Use Disorder Research Report Overview How do medications to treat opioid use disorder work? How effective are medications to treat opioid use disorder? What are misconceptions about maintenance treatment? What is the treatment need versus the diversion risk for opioid use disorder treatment? What is the impact of medication for opioid use disorder treatment on HIV/HCV outcomes? How is opioid use disorder treated in the criminal justice system? Is medication to treat opioid use disorder available in the military? What treatment is available for pregnant mothers and their babies? How much does opioid treatment cost? Is naloxone accessible? References Page 1 Medications to Treat Opioid Use Disorder Research Report Discusses effective medications used to treat opioid use disorders: methadone, buprenorphine, and naltrexone. Overview An estimated 1.4 million people in the United States had a substance use disorder related to prescription opioids in 2019.1 However, only a fraction of people with prescription opioid use disorders receive tailored treatment (22 percent in 2019).1 Overdose deaths involving prescription opioids more than quadrupled from 1999 through 2016 followed by significant declines reported in both 2018 and 2019.2,3 Besides overdose, consequences of the opioid crisis include a rising incidence of infants born dependent on opioids because their mothers used these substances during pregnancy4,5 and increased spread of infectious diseases, including HIV and hepatitis C (HCV), as was seen in 2015 in southern Indiana.6 Effective prevention and treatment strategies exist for opioid misuse and use disorder but are highly underutilized across the United States. -
Adverse Reactions to Hallucinogenic Drugs. 1Rnstttutton National Test
DOCUMENT RESUME ED 034 696 SE 007 743 AUTROP Meyer, Roger E. , Fd. TITLE Adverse Reactions to Hallucinogenic Drugs. 1rNSTTTUTTON National Test. of Mental Health (DHEW), Bethesda, Md. PUB DATP Sep 67 NOTE 118p.; Conference held at the National Institute of Mental Health, Chevy Chase, Maryland, September 29, 1967 AVATLABLE FROM Superintendent of Documents, Government Printing Office, Washington, D. C. 20402 ($1.25). FDPS PRICE FDPS Price MFc0.50 HC Not Available from EDRS. DESCPTPTOPS Conference Reports, *Drug Abuse, Health Education, *Lysergic Acid Diethylamide, *Medical Research, *Mental Health IDENTIFIEPS Hallucinogenic Drugs ABSTPACT This reports a conference of psychologists, psychiatrists, geneticists and others concerned with the biological and psychological effects of lysergic acid diethylamide and other hallucinogenic drugs. Clinical data are presented on adverse drug reactions. The difficulty of determining the causes of adverse reactions is discussed, as are different methods of therapy. Data are also presented on the psychological and physiolcgical effects of L.S.D. given as a treatment under controlled medical conditions. Possible genetic effects of L.S.D. and other drugs are discussed on the basis of data from laboratory animals and humans. Also discussed are needs for futher research. The necessity to aviod scare techniques in disseminating information about drugs is emphasized. An aprentlix includes seven background papers reprinted from professional journals, and a bibliography of current articles on the possible genetic effects of drugs. (EB) National Clearinghouse for Mental Health Information VA-w. Alb alb !bAm I.S. MOMS Of NAM MON tMAN IONE Of NMI 105 NUNN NU IN WINES UAWAS RCM NIN 01 NUN N ONMININI 01011110 0. -
Understanding Addiction, Helping Clients and Colleagues
ALABAMA LAWYER ASSISTANCE PROGRAM Understanding Addiction, Helping Clients and Colleagues By Jeanne Marie Leslie rugs change the brain–they according to the American Bar change its structure and how it Association, is 15 to 18 percent.3 D works.1 Many of these changes Lawyers rank high in the incidences of are responsible for the behaviors we see depression compared to other professions in individuals addicted to drugs. and a disproportionate number of Neuroscience has made significant lawyers commit suicide;4 in Alabama advances in our ability to identify and there are about a dozen lawyer suicides understand the mechanisms involved in every year. And these are only the ones the addicted brain. These advancements about which we know. Many lawyers, clearly confirm what many in the addic- including some you know, may be strug- tion medicine field have known for some gling with an addiction or mental health time: the obsession and compulsion to problem when help is readily available use drugs in the addicted brain is instinc- through ALAP. tual and paramount to survival.2 Ignorance and stigma have contributed Addiction Facts to the confusion, moral judgments and Dr. Nora D. Volkow, director of the poor understanding of this destructive National Institute of Drug Abuse and often fatal disease. Our courts are (NIDA), explains how the neuro-chemi- overwhelmed by the behaviors, criminal cal mechanisms of drug abuse catalyze and civil, associated with addiction. and accelerate the onset addiction: Therefore, understanding addiction is “Recognizing drug addiction as a chron- essential for lawyers. Lawyers are in ic, relapsing disease characterized by com- unique positions to initiate change, to pulsive drug seeking and use is critical to advocate for medical treatment over tra- being able to identify and help those who ditional sanctions and to refer individuals have it. -
Comparison Between Two Methodological Paradigms of Conditioned Place Preference with Methlyphenidate
East Tennessee State University Digital Commons @ East Tennessee State University Undergraduate Honors Theses Student Works 12-2013 Comparison between Two Methodological Paradigms of Conditioned Place Preference with Methlyphenidate. Bryce D. Watson East Tennessee State University Follow this and additional works at: https://dc.etsu.edu/honors Part of the Psychiatry and Psychology Commons Recommended Citation Watson, Bryce D., "Comparison between Two Methodological Paradigms of Conditioned Place Preference with Methlyphenidate." (2013). Undergraduate Honors Theses. Paper 89. https://dc.etsu.edu/honors/89 This Honors Thesis - Open Access is brought to you for free and open access by the Student Works at Digital Commons @ East Tennessee State University. It has been accepted for inclusion in Undergraduate Honors Theses by an authorized administrator of Digital Commons @ East Tennessee State University. For more information, please contact [email protected]. Watson 1 Comparison between Two Methodological Paradigms of Conditioned Place Preference with Methlyphenidate By Bryce Watson The Honors College Honors in Discipline Program East Tennessee State University Department of Psychology December 9, 2013 Russell Brown, Faculty Mentor David Harker, Faculty Reader Eric Sellers, Faculty Reader Watson 2 Abstract The aim of this thesis is to examine the mechanisms of Methylphenidate (MPH) on Conditioned Place Preference (CPP), a behavioral test of reward. The psychostimulant MPH is therapeutically used in the treatment of ADHD, but has been implicated in many pharmacological actions related to drug addiction and is considered to have abuse potential. Past work in our lab and others have shown substantial sex-differences in the neuropharmacological profile of MPH. Here a discussion of the relevant mechanisms of action of MPH and its relationship to neurotrophins and CPP are reviewed. -
D, Dopamine Receptor Activation Is Necessary for the Induction of Sensitization by Amphetamine in the Ventral Tegmental Area
The Journal of Neuroscience, April 1, 1996, 76(7):241 l-2420 D, Dopamine Receptor Activation Is Necessary for the Induction of Sensitization by Amphetamine in the Ventral Tegmental Area Paul Vezina Department of Psychiatry, The University of Chicago, Chicago, Illinois 6063 7 Repeated intermittent exposure to amphetamine produces injections of amphetamine. In the second experiment, locomo- long-term enhancements in the ability of this drug to produce tor sensitization induced by infusion of amphetamine into the locomotion and increase extracellular dopamine (DA) in the ventral tegmental area (WA) was blocked when these injections nucleus accumbens (NAcc). Three experiments were con- were preceded by systemic injections of SCH23390. Finally, in ducted to evaluate the role played by D, DA receptors in the experiment three, co-injecting SCH23390, but not its inactive production of these changes in response to amphetamine. Rats enantiomer, with amphetamine into the VTA during preexpo- were preexposed to amphetamine, alone or with a DA receptor sure prevented sensitization of the NAcc DA response to this antagonist, and tested for sensitization l-3 weeks after the last drug. These results indicate that while D, DA receptor activa- drug injection. On the test for sensitization, locomotor (experi- tion is not necessary for the induction of locomotor sensitiza- ments 1 and 2) and NAcc DA (experiment 3) responses of the tion to amphetamine, D, DA receptors located in the VTA play animals to a systemic amphetamine injection were assessed. In a critical role in the development of sensitized locomotor and the first experiment, systemic injections of the D, DA receptor NAcc DA response to this drug. -
ASAM National Practice Guideline for the Treatment of Opioid Use Disorder: 2020 Focused Update
The ASAM NATIONAL The ASAM National Practice Guideline 2020 Focused Update Guideline 2020 Focused National Practice The ASAM PRACTICE GUIDELINE For the Treatment of Opioid Use Disorder 2020 Focused Update Adopted by the ASAM Board of Directors December 18, 2019. © Copyright 2020. American Society of Addiction Medicine, Inc. All rights reserved. Permission to make digital or hard copies of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for commercial, advertising or promotional purposes, and that copies bear this notice and the full citation on the fi rst page. Republication, systematic reproduction, posting in electronic form on servers, redistribution to lists, or other uses of this material, require prior specifi c written permission or license from the Society. American Society of Addiction Medicine 11400 Rockville Pike, Suite 200 Rockville, MD 20852 Phone: (301) 656-3920 Fax (301) 656-3815 E-mail: [email protected] www.asam.org CLINICAL PRACTICE GUIDELINE The ASAM National Practice Guideline for the Treatment of Opioid Use Disorder: 2020 Focused Update 2020 Focused Update Guideline Committee members Kyle Kampman, MD, Chair (alpha order): Daniel Langleben, MD Chinazo Cunningham, MD, MS, FASAM Ben Nordstrom, MD, PhD Mark J. Edlund, MD, PhD David Oslin, MD Marc Fishman, MD, DFASAM George Woody, MD Adam J. Gordon, MD, MPH, FACP, DFASAM Tricia Wright, MD, MS Hendre´e E. Jones, PhD Stephen Wyatt, DO Kyle M. Kampman, MD, FASAM, Chair 2015 ASAM Quality Improvement Council (alpha order): Daniel Langleben, MD John Femino, MD, FASAM Marjorie Meyer, MD Margaret Jarvis, MD, FASAM, Chair Sandra Springer, MD, FASAM Margaret Kotz, DO, FASAM George Woody, MD Sandrine Pirard, MD, MPH, PhD Tricia E. -
Neuroreceptor Activation by Vibration-Assisted Tunneling
OPEN Neuroreceptor Activation by SUBJECT AREAS: Vibration-Assisted Tunneling BIOPHYSICAL CHEMISTRY Ross D. Hoehn1, David Nichols2, Hartmut Neven3 & Sabre Kais4,5,6 MECHANISM OF ACTION 1Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA, 2Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907, USA,3 Google, Venice, CA 90291, USA,4 Department of Received 5 20 October 2014 Chemistry, Purdue University, West Lafayette, IN 47907, USA, Departments of Physics, Purdue University, West Lafayette, IN 47907, USA,6 Qatar Environment and Energy Research Institute, Qatar Foundation, Doha, Qatar. Accepted 20 March 2015 G protein-coupled receptors (GPCRs) constitute a large family of receptor proteins that sense molecular Published signals on the exterior of a cell and activate signal transduction pathways within the cell. Modeling how an 24 April 2015 agonist activates such a receptor is fundamental for an understanding of a wide variety of physiological processes and it is of tremendous value for pharmacology and drug design. Inelastic electron tunneling spectroscopy (IETS) has been proposed as a model for the mechanism by which olfactory GPCRs are activated by a bound agonist. We apply this hyothesis to GPCRs within the mammalian nervous system Correspondence and using quantum chemical modeling. We found that non-endogenous agonists of the serotonin receptor share requests for materials a particular IET spectral aspect both amongst each other and with the serotonin molecule: a peak whose should be addressed to intensity scales with the known agonist potencies. We propose an experiential validation of this model by S.K. (kais@purdue. utilizing lysergic acid dimethylamide (DAM-57), an ergot derivative, and its deuterated isotopologues; we also provide theoretical predictions for comparison to experiment. -
Nonparaphilic Sexual Addiction Mark Kahabka
The Linacre Quarterly Volume 63 | Number 4 Article 2 11-1-1996 Nonparaphilic Sexual Addiction Mark Kahabka Follow this and additional works at: http://epublications.marquette.edu/lnq Part of the Ethics and Political Philosophy Commons, and the Medicine and Health Sciences Commons Recommended Citation Kahabka, Mark (1996) "Nonparaphilic Sexual Addiction," The Linacre Quarterly: Vol. 63: No. 4, Article 2. Available at: http://epublications.marquette.edu/lnq/vol63/iss4/2 Nonparaphilic Sexual Addiction by Mr. Mark Kahabka The author is a recent graduate from the Master's program in Pastoral Counseling at Saint Paul University in Ottawa, Ontario, Canada. Impulse control disorders of a sexual nature have probably plagued humankind from its beginnings. Sometimes classified today as "sexual addiction" or "nonparaphilic sexual addiction,"l it has been labeled by at least one professional working within the field as "'The World's Oldest/Newest Perplexity."'2 Newest, because for the most part, the only available data until recently has come from those working within the criminal justice system and as Patrick Carnes points out, "they never see the many addicts who have not been arrested."3 By definition, both paraphilic4 and nonparaphilic sexual disorders "involve intense sexual urges and fantasies" and which the "individual repeatedly acts on these urges or is highly distressed by them .. "5 Such disorders were at one time categorized under the classification of neurotic obsessions and compulsions, and thus were usually labeled as disorders of an obsessive compulsive nature. Since those falling into this latter category, however, perceive such obessions and compulsions as "an unwanted invasion of consciousness"6 (in contrast to sexual impulse control disorders, which are "inherently pleasurable and consciously desired"7) they are now placed under the "impulse control disorder" category.s To help clarify the distinction: The purpose of the compulsions is to reduce anxiety, which often stems from unwanted but intrusive thoughts. -
Amphetamines Help People Struggling with Amphetamine Addiction
Reducing Harm & Finding Help, Continued detox facilities, and addiction treatment programs can help with withdrawal. Amphetamine addiction can be treated in a residential setting (often called “rehab”) or in an outpatient setting (when the patient lives at home, but goes to treatment appointments 1-7 times per week). Effective types of counseling for benzodiazepine addiction include cognitive behavioral therapy, motivational interviewing, and twelve- step facilitation. There are also recovery support groups and online forums that can Amphetamines help people struggling with amphetamine addiction. Narcotics Anonymous, Alcoholics Anonymous, and groups like SMART Recovery or LifeRing are all available to support people with Information about amphetamine addiction. Recovery apps specific to amphetamine addiction can be downloaded to your smart phone that Your Health provide lists of recovery support meetings, reading material, tools like sobriety counters, and more. © 2016 Institute for Research, Education and Training in Addictions Amphetamines – Amphetamines & who inject amphetamines and/or share equipment can develop injection site What Are They? My Health, Continued infections, damage to their veins, Hepatitis B & C, HIV, and blood clots. Amphetamines are a category of drug that decisions. For some people, amphetamine include prescription medications (like intoxication can create or worsen mental Adderall), methamphetamine (often illness symptoms like anxiety, paranoia, and shortened to “meth”), and MDMA (often hallucinations. called “ecstasy” or “Molly”). Although these drugs are not identical, they are all included Unknown drugs: Because some amphetamines in the category of amphetamines. are illegal, they carry additional risks. Users of methamphetamine and MDMA cannot be Amphetamines are stimulants. They can sure of the drug’s contents or dose. -
The Addictive Potential of Sexual Behavior (Impulse) Review2
Page 1 of 9 Impulse: The Premier Journal for Undergraduate Publications in the Neurosciences Submitted for Publication January, 2018 The Addictive Potential of Sexual Behavior Heather Bool D’Youville College, Buffalo, New York This paper examines the addictive potential of sexual behavior through behavioral and neurophysiological mechanisms analogous to other formalized addictions. Sexual behavior refers to any action or thought preformed with the intention of sexual gratification, such as the consumption of explicit material, masturbation, fantasizing of sexual scenarios, and sexual intercourse. Addiction is defined by the presence of tolerance, preoccupation, withdrawal, dependence, and the continuation of behavior despite risk and/or harm. Sexual addiction demonstrates high relapse potential due to the frequency of reward-associated cues encountered in daily life, and the low effort and risk required for sexual pleasure. Currently, sexual addiction lacks a formal diagnosis despite behavioral, psychological, and physiological evidence. An official diagnosis recognized by a governing authority, such as the American Psychological Association, would offer greater access to treatment, funding for research, and exposure and education for the general public about this disorder. Abbreviations: None Keywords: Sexual Behavior; Addiction; Sexual Addiction; Neurophysiology; Behavioral Neuroscience Introduction “Sexual addiction” is an umbrella term Confusion remains regarding the for sexual impulsivity, sexual compulsivity, out- etiology and nosology of sexual addiction, of-control sexual behavior, hypersexual which has led to the lack of a universally behavior or disorder, sexually excessive accepted criterion and, more importantly, the behavior or disorder, Don Jaunism, satyriasis, absence of a formal diagnosis. A lack of and obsessive-compulsive sexual behavior operationalization of the disorder has severe (Beech et al., 2009; Karila et al., 2014; effects on research; due to the use of Rosenberg et al., 2014). -
Everything You Wanted to Know but May Have Been Afraid to Ask
Wellness Tip Sheet Maryland State Bar Association’s Lawyer Assistance Program Everything you wanted to know but may have been afraid to ask What is Sexual Addiction? According to Dr. Founder of the International Institute for Trauma and Addiction Professionals (IITAP), sexual addiction is defined as any sexually related compulsive behavior which interferes with normal living and causes severe stress on family, friends, loved ones, or one’s work environment. Sexual addiction is sometimes referred to as sexual dependency or sexual compulsivity. By any name it is a compulsive behavior that completely dominates the addict’s life. Sexual addicts make sex a priority, making it more important than family, friends and work. Sex becomes the organizing principle of addicts’ lives. They are willing to sacrifice what they cherish most in order to preserve and continue their unhealthy behavior. Background Information: • It is estimated that 3 to 6% of the US population suffer from sexual addiction. That’s about 17 to 37 million people • Although it has traditionally been considered a middle aged male dominant addiction, females now represent more than 20% of the affected population. • Sex addiction does not discriminate. It crosses all educational, socioeconomic, racial and sexual-orientation lines, but one commonality among addicts is a sense of shame. • There has been progress in the medical field which includes sexual addiction being diagnosed as a disorder and having treatment options available. • In the past ten years treatment options have gone from fewer than 100 therapists to over 1,500, with treatment centers specializing in sexual addiction. What Causes Sexual Addiction? Sexual addiction, just like any addiction, is very complex.