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https://www.readbyqxmd.com/read/28938182/the-genetic-epidemiology-of-substance-use-disorder-a-review
#1
REVIEW
Elizabeth C Prom-Wormley, Jane Ebejer, Danielle M Dick, M Scott Bowers
BACKGROUND: Substance use disorder (SUD) remains a significant public health issue. A greater understanding of how genes and environment interact to regulate phenotypes comprising SUD will facilitate directed treatments and prevention. METHODS: The literature studying the neurobiological correlates of SUD with a focus on the genetic and environmental influences underlying these mechanisms was reviewed. Results from twin/family, human genetic association, gene-environment interaction, epigenetic literature, phenome-wide association studies are summarized for alcohol, nicotine, cannabinoids, cocaine, and opioids...
August 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28919445/cognitive-effects-of-labeled-addictolytic-medications
#2
REVIEW
Camille Noélie Pujol, Cecilia Paasche, Vincent Laprevote, Benoit Trojak, Pierre Vidailhet, Elisabeth Bacon, Laurence Lalanne
INTRODUCTION: Alcohol, tobacco, and illegal drug usage is pervasive throughout the world, and abuse of these substances is a major contributor to the global disease burden. Many pharmacotherapies have been developed over the last 50years to target addictive disorders. While the efficacy of these pharmacotherapies is largely recognized, their cognitive impact is less known. However, all substance abuse disorders are known to promote cognitive disorders like executive dysfunction and memory impairment...
September 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28918668/current-status-and-future-prospects-for-the-development-of-substance-abuse-vaccines
#3
Thomas R Kosten, Daryl Shorter, David Heekin
Substance use disorders (SUD) are a significant threat to both individual and public health. To date, SUD pharmacotherapy has focused primarily on agonist medications (i.e., nicotine replacement therapy for tobacco use disorder; methadone and buprenorphine for opioid use disorder), antagonist medications (i.e., naltrexone for opioid use disorder), and aversive therapy (i.e., disulfiram for alcohol use disorder). Pharmacotherapeutic approaches utilizing an immunological framework for medication development represent an important focus of study for treatment of these illnesses...
September 18, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28901722/%C3%AE-6-subunit-containing-nicotinic-receptors-mediate-low-dose-ethanol-effects-on-ventral-tegmental-area-neurons-and-ethanol-reward
#4
Scott C Steffensen, Samuel I Shin, Ashley C Nelson, Stephanie S Pistorius, Stephanie B Williams, Taylor J Woodward, Hyun Jung Park, Lindsey Friend, Ming Gao, Fenfei Gao, Devin H Taylor, M Foster Olive, Jeffrey G Edwards, Sterling N Sudweeks, Lori M Buhlman, J Michael McIntosh, Jie Wu
Dopamine (DA) neuron excitability is regulated by inhibitory GABAergic synaptic transmission and modulated by nicotinic acetylcholine receptors (nAChRs). The aim of this study was to evaluate the role of α6 subunit-containing nAChRs (α6*-nAChRs) in acute ethanol effects on ventral tegmental area (VTA) GABA and DA neurons. α6*-nAChRs were visualized on GABA terminals on VTA GABA neurons, and α6*-nAChR transcripts were expressed in most DA neurons, but only a minority of VTA GABA neurons from GAD67 GFP mice...
September 13, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28892072/neuregulin-signaling-pathway-in-smoking-behavior
#5
R Gupta, B Qaiser, L He, T S Hiekkalinna, A B Zheutlin, S Therman, M Ollikainen, S Ripatti, M Perola, V Salomaa, L Milani, T D Cannon, P A F Madden, T Korhonen, J Kaprio, A Loukola
Understanding molecular processes that link comorbid traits such as addictions and mental disorders can provide novel therapeutic targets. Neuregulin signaling pathway (NSP) has previously been implicated in schizophrenia, a neurodevelopmental disorder with high comorbidity to smoking. Using a Finnish twin family sample, we have previously detected association between nicotine dependence and ERBB4 (a neuregulin receptor), and linkage for smoking initiation at the ERBB4 locus on 2q33. Further, Neuregulin3 has recently been shown to associate with nicotine withdrawal in a behavioral mouse model...
August 22, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28867606/similar-precipitated-withdrawal-effects-on-intracranial-self-stimulation-during-chronic-infusion-of-an-e-cigarette-liquid-or-nicotine-alone
#6
A C Harris, P Muelken, J R Smethells, M Krueger, M G LeSage
The FDA recently extended their regulatory authority to electronic cigarettes (ECs). Because the abuse liability of ECs is a leading concern of the FDA, animal models are urgently needed to identify factors that influence the relative abuse liability of these products. The ability of tobacco products to induce nicotine dependence, defined by the emergence of anhedonia and other symptoms of nicotine withdrawal following cessation of their use, contributes to tobacco abuse liability. The present study compared the severity of precipitated withdrawal during chronic infusion of nicotine alone or nicotine-dose equivalent concentrations of three different EC refill liquids in rats, as indicated by elevations in intracranial self-stimulation (ICSS) thresholds (anhedonia-like behavior)...
September 1, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28863003/varenicline-and-gz-793a-differentially-decrease-methamphetamine-self-administration-under-a-multiple-schedule-of-reinforcement-in-rats
#7
Megan M Kangiser, Linda P Dwoskin, Guangrong Zheng, Peter A Crooks, Dustin J Stairs
Methamphetamine is a potent psychostimulant with high abuse rates. Currently, there is no Food and Drug Administration-approved pharmacotherapy for methamphetamine addiction. Ideally, a pharmacotherapy should selectively decrease methamphetamine self-administration without affecting responding for other reinforcers. One way to test this is with the use of a multiple schedule of reinforcement, in which drug and food are available in alternating components within a session. The present study evaluated GZ-793A, a vesicular monoamine transporter-2 inhibitor, and varenicline, a partial agonist at α4β2 and full agonist at α7 nicotinic acetylcholine receptors, for their ability to decrease methamphetamine and food self-administration using a multiple schedule of reinforcement...
August 31, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28858694/recent-cannabis-use-among-veterans-in-the-united-states-results-from-a-national-sample
#8
Alan K Davis, Lewei A Lin, Mark A Ilgen, Kipling M Bohnert
BACKGROUND: Compared to civilians, little is known about cannabis use among Veterans in the general United States (US) population. This study aimed to examine the prevalence and correlates of recent medical and non-medical cannabis use among this important US sub-population. METHOD: Data came from the 2014 National Survey on Drug Use and Health. Bivariate and multivariable analyses were conducted that were weighted to account for the complex survey design. RESULTS: Approximately 9% of Veterans in the US reported past year cannabis use...
August 18, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28858691/pharmacological-challenge-studies-with-acute-psychosocial-stress
#9
REVIEW
Kathryne Van Hedger, Anya K Bershad, Harriet de Wit
Chronic stress is known to affect many psychiatric disorders, and studies of responses to acute stress may reveal processes that ultimately lead to maladaptive responses to chronic stress. Many studies have used simulated public speaking tasks to induce stress in the laboratory and, of interest to this review, the tasks have been used to assess the effects of both therapeutic and nonmedical drugs on stress reactivity. Here we review 38 studies that examined effects of single doses of drugs on subjective, cardiovascular and hormonal responses to an acute social stressor in healthy volunteers...
August 22, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28857330/increased-habenular-connectivity-in-opioid-users-is-associated-with-an-%C3%AE-5-subunit-nicotinic-receptor-genetic-variant
#10
Kaylah Curtis, Humsini Viswanath, Kenia M Velasquez, David L Molfese, Mark J Harding, Eduardo Aramayo, Philip R Baldwin, Elisa Ambrosi, Alok Madan, Michelle Patriquin, B Christopher Frueh, J Christopher Fowler, Thomas R Kosten, David A Nielsen, Ramiro Salas
BACKGROUND AND OBJECTIVES: Opioid use disorder (OUD) is a chronic disorder with relapse based on both desire for reinforcement (craving) and avoidance of withdrawal. The aversive aspect of dependence and relapse has been associated with a small brain structure called the habenula, which expresses large numbers of both opioid and nicotinic receptors. Additionally, opioid withdrawal symptoms can be induced in opioid-treated rodents by blocking not only opioid, but also nicotinic receptors...
August 31, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28833206/sonographic-differentiation-between-lymphatic-and-metastatic-diseases-in-cervical-lymphadenopathy
#11
Ulrich Strassen, Christina Geisweid, Benedikt Hofauer, Andreas Knopf
OBJECTIVES/HYPOTHESIS: The spectrum of differential diagnosis in cervical lymphadenopathy is extremely broad. In lymphoma and inflammatory diseases, surgical approaches are restricted to diagnostic lymph extirpation, whereas metastatic outgrowth into regional lymph nodes usually requires neck dissection. Lymph node surgery has to manage the balancing act between sufficient radicality and preservation of functional structures. The current study, therefore, aimed to identify parameters to differentiate between lymph nodes of lymphatic and metastatic origin...
August 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28818716/positron-emission-tomography-pet-imaging-of-nicotine-induced-dopamine-release-in-squirrel-monkeys-using-18-f-fallypride
#12
Jennifer E Naylor, Takato Hiranita, Katelin S Matazel, Xuan Zhang, Merle G Paule, Amy K Goodwin
BACKGROUND: Nicotine, the principal psychoactive tobacco constituent, is thought to produce its reinforcing effects via actions within the mesolimbic dopamine (DA) system. The objective of the current study was to examine the effect of nicotine on DA D2/D3 receptor availability in the nonhuman primate brain with the use of the radioligand [(18)F]fallypride and positron emission tomography (PET). METHODS: Ten adult male squirrel monkeys were used in the current study...
August 8, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28775316/efficient-functional-neutralization-of-lethal-peptide-toxins-in-vivo-by-oligonucleotides
#13
Tarek Mohamed Abd El-Aziz, Corinne Ravelet, Jordi Molgo, Emmanuelle Fiore, Simon Pale, Muriel Amar, Sawsan Al-Khoury, Jérôme Dejeu, Mahmoud Fadl, Michel Ronjat, Germain Sotoing Taiwe, Denis Servent, Eric Peyrin, Michel De Waard
Medical means to save the life of human patients affected by drug abuse, envenomation or critical poisoning are currently limited. While the compounds at risks are most often well identified, particularly for bioterrorism, chemical intervention to counteract the toxic effects of the ingested/injected compound(s) is restricted to the use of antibodies. Herein, we illustrate that DNA aptamers, targeted to block the pharmacophore of a poisonous compound, represent a fast-acting and reliable method of neutralization in vivo that possesses efficient and long-lasting life-saving properties...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28759616/altered-nicotine-reward-associated-behavior-following-%C3%AE-4-nachr-subunit-deletion-in-ventral-midbrain
#14
Can Peng, Staci E Engle, Yijin Yan, Marcus M Weera, Jennifer N Berry, Matthew C Arvin, Guiqing Zhao, J Michael McIntosh, Julia A Chester, Ryan M Drenan
Nicotinic acetylcholine receptors containing α4 subunits (α4β2* nAChRs) are critical for nicotinic cholinergic transmission and the addictive action of nicotine. To identify specific activities of these receptors in the adult mouse brain, we coupled targeted deletion of α4 nAChR subunits with behavioral and and electrophysiological measures of nicotine sensitivity. A viral-mediated Cre/lox approach allowed us to delete α4 from ventral midbrain (vMB) neurons. We used two behavioral assays commonly used to assess the motivational effects of drugs of abuse: home-cage oral self-administration, and place conditioning...
2017: PloS One
https://www.readbyqxmd.com/read/28750823/major-depressive-disorder-suicidal-thoughts-and-behaviours-and-cannabis-involvement-in-discordant-twins-a-retrospective-cohort-study
#15
Arpana Agrawal, Elliot C Nelson, Kathleen K Bucholz, Rebecca Tillman, Richard A Grucza, Dixie J Statham, Pamela Af Madden, Nicholas G Martin, Andrew C Heath, Michael T Lynskey
BACKGROUND: Early and frequent cannabis use are associated with an increased likelihood of major depressive disorder (MDD) as well as suicidal thoughts and behaviours. We identify associations between aspects of cannabis use, MDD, and suicidal thoughts and behaviours and examine whether such associations persist after accounting for those predisposing factors, including genetic liability and early family environment, that are shared by identical twins who are discordant for cannabis exposure...
September 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28732318/the-experimental-tobacco-marketplace-ii-substitutability-and-sex-effects-in-dual-electronic-cigarette-and-conventional-cigarette-users
#16
Amanda J Quisenberry, Mikhail N Koffarnus, Leonard H Epstein, Warren K Bickel
AIM: The aim of the current study was to evaluate tobacco product purchasing in the Experimental: Tobacco Marketplace (ETM) among male and female smokers who also use e-cigarettes. We hypothesized a high substitution profile for e-cigarettes and that males would purchase more Snus than females. METHODS: The ETM is an online market used in clinical abuse liability research to mimic real-world purchasing patterns. Tobacco products, including each participant's usual choice of conventional and e-cigarettes, were presented along with a price and description of nicotine content...
July 5, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28712749/nicotine-and-cocaine-triggered-methamphetamine-reinstatement-in-female-and-male-sprague-dawley-rats
#17
Steven T Pittenger, Shinnyi Chou, Scott T Barrett, Isabella Catalano, Maxwell Lydiatt, Rick A Bevins
Preclinical studies have demonstrated a return to methamphetamine (meth)-seeking behavior (reinstatement) induced by injections of meth administered by the experimenter (drug-prime). Notably, females tend to be more sensitive to drug-prime; often displaying more reinstatement behavior when compared to males. While meth-primed reinstatement of meth-seeking behavior has been established, little is known about the ability of other drugs of abuse to substitute for meth during drug-primed reinstatement; nicotine and cocaine were the focus of the present work...
August 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28704277/effects-of-ceftriaxone-on-conditioned-nicotine-reward-in-rats
#18
Helene L Philogene-Khalid, Steven J Simmons, John W Muschamp, Scott M Rawls
Nicotine is the addictive compound in tobacco products which exerts psychosomatic effects that contribute to abuse and to low rates of abstinence in treatment-seeking smokers. At present, the most successful smoking cessation aide helps one in four individuals quit smoking at 1 year postcessation. New adjunctive therapies are needed to improve status of smoking-related public health crises, and β-lactam antibiotics are one class of potential therapies as they favorably augment extrasynaptic glutamate clearance...
September 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28666811/%C3%AE-6%C3%AE-2-subunit-containing-nicotinic-acetylcholine-receptors-exert-opposing-actions-on-rapid-dopamine-signaling-in-the-nucleus-accumbens-of-rats-with-high-versus-low-response-to-novelty
#19
Cody A Siciliano, J Michael McIntosh, Sara R Jones, Mark J Ferris
Determining neurobiological factors that contribute to individual variance in drug addiction vulnerability allows for identification of at-risk populations, use of preventative measures and personalized medicine in the treatment of substance use disorders. Rodents that exhibit high locomotor activity when exploring an inescapable novel environment (high-responder; HR) are more susceptible to the reinforcing effects of many abused compounds, including nicotine, as compared to animals that exhibit low locomotor activity (low-responder; LR)...
June 27, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28647007/childhood-psychiatric-disorders-as-risk-factor-for-subsequent-substance-abuse-a-meta-analysis
#20
REVIEW
Annabeth P Groenman, Tieme W P Janssen, Jaap Oosterlaan
OBJECTIVE: To assess the prospective risk of developing substance-related disorders after childhood mental health disorders (i.e., attention-deficit/hyperactivity disorder [ADHD], oppositional defiant disorder [ODD] or conduct disorder [CD], anxiety disorder, and depression) using meta-analysis. METHOD: PubMed, Embase, and PsycInfo were searched for relevant longitudinal studies that described childhood (<18 years old) ADHD, ODD or CD, anxiety, or depression in relation to later alcohol-, nicotine-, or drug-related disorders or substance use disorders (SUDs) published in peer-reviewed journals in the English language from 1986 to May 2016...
July 2017: Journal of the American Academy of Child and Adolescent Psychiatry
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