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Pharmacological treatment of addiction

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https://www.readbyqxmd.com/read/28432902/ayahuasca-s-entwined-efficacy-an-ethnographic-study-of-ritual-healing-from-addiction
#1
Piera Talin, Emilia Sanabria
BACKGROUND: A range of studies has demonstrated the efficacy of the psychoactive Amazonian brew ayahuasca in addressing substance addiction. These have revealed that physiological and psychological mechanisms are deeply enmeshed. This article focuses on how interactive ritual contexts support the healing effort. The study of psychedelic-assisted treatments for addiction has much to gain from ethnographic analyses of healing experiences within the particular ecologies of use and care, where these interventions are rendered efficacious...
April 19, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28429885/intravenous-self-administration-of-benzydamine-a-non-steroidal-anti-inflammatory-drug-with-a-central-cannabinoidergic-mechanism-of-action
#2
Riccardo Avvisati, Maria Meringolo, Emiliana Stendardo, Elisa Malavasi, Silvia Marinelli, Aldo Badiani
Benzydamine (BZY) is a non-steroidal anti-inflammatory drug used for the topical treatment of inflammations of the oral and vaginal mucosae. Virtually nothing is known about the central pharmacological actions of BZY. Yet there are reports of voluntary systemic overdosage of BZY in drug addicts, resulting in a euphoric, hallucinatory state. In the present study, we investigated the reinforcing properties of BZY in a rat self-administration paradigm. We found that BZY has a powerful reinforcing effect and that this effect is greatly facilitated in animals that already had substance experience, having previously self-administered heroin and cocaine, indicating cross sensitization between BZY and other common drugs of abuse...
April 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28412411/mirtazapine-and-ketanserin-alter-preference-for-gambling-like-schedules-of-reinforcement-in-rats
#3
Amanda L Persons, Stephanie E Tedford, T Celeste Napier
Drug and behavioral addictions have overlapping features, e.g., both manifest preference for larger, albeit costlier, reinforcement options in cost/benefit decision-making tasks. Our prior work revealed that the mixed-function serotonergic compound, mirtazapine, attenuates behaviors by rats motivated by abused drugs. To extend this work to behavioral addictions, here we determined if mirtazapine and/or ketanserin, another mixed-function serotonin-acting compound, can alter decision-making in rats that is independent of drug (or food)-motivated reward...
April 12, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28391178/mirtazapine-attenuates-cocaine-seeking-in-rats
#4
Susana Barbosa-Méndez, Phillipe Leff, Adriana Arías-Caballero, Ricardo Hernández-Miramontes, Gerardo Heinze, Alberto Salazar-Juárez
BACKGROUND: Relapse to cocaine use is a major problem in the clinical treatment of cocaine addiction. Antidepressants have been studied for their therapeutic potential to treat cocaine use disorder. Research has suggested that antidepressants attenuate both drug craving and the re-acquisition of drug-seeking and drug-taking behaviors. This study examined the efficacy of mirtazapine, an antidepressant/anxiolytic, in decreasing cocaine seeking in rats. METHODS: We used the cocaine self-administration paradigm to assess the effects of mirtazapine on rats trained to self-administer cocaine or food under a fixed-ratio schedule...
April 4, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28387530/combining-medically-assisted-treatment-and-twelve-step-programming-a-perspective-and-review
#5
Marc Galanter
BACKGROUND: People with severe substance use disorders require long-term rehabilitative care after the initial treatment. There is, however, a deficit in the availability of such care. This may be due both to inadequate medical coverage and insufficient use of community-based Twelve-Step programs in many treatment facilities. In order to address this deficit, rehabilitative care for severe substance use disorders could be promoted through collaboration between practitioners of medically assisted treatment, employing medications, and Twelve-Step-oriented practitioners...
April 7, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28378414/oxytocin-and-opioid-addiction-revisited-old-drug-new-applications
#6
REVIEW
Panos Zanos, Polymnia Georgiou, Carol Weber, Fiona Robinson, Christos Kouimtsidis, Ramin Niforooshan, Alexis Bailey
Opioid addiction has devastating health and socio-economic consequences, and current pharmacotherapy is limited and often accompanied by side effects, thus novel treatment is warranted. Traditionally, the neurohypophyseal peptide oxytocin (OT) is known for its effects on mediating reward, social affiliation and bonding, stress and learning and memory. There is now strong evidence that OT is a possible candidate for the treatment of drug addiction and depression-addiction co-morbidities. This review summarizes and critically discusses the preclinical evidence surrounding the consequences of pharmacological manipulation of the oxytocinergic system on opioid addiction-related processes, as well as the effects of opioids on the OT system at different stages of the addiction cycle...
April 5, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28367308/association-between-cannabis-use-and-methadone-maintenance-treatment-outcomes-an-investigation-into-sex-differences
#7
Laura Zielinski, Meha Bhatt, Nitika Sanger, Carolyn Plater, Andrew Worster, Michael Varenbut, Jeff Daiter, Guillaume Pare, David C Marsh, Dipika Desai, James MacKillop, Meir Steiner, Stephanie McDermid Vaz, Lehana Thabane, Zainab Samaan
BACKGROUND: Cannabis will soon become legalized in Canada, and it is currently unclear how this will impact public health. Methadone maintenance treatment (MMT) is the most common pharmacological treatment for opioid use disorder (OUD), and despite its documented effectiveness, a large number of patients respond poorly and experience relapse to illicit opioids. Some studies implicate cannabis use as a risk factor for poor MMT response. Although it is well established that substance-use behaviors differ by sex, few of these studies have considered sex as a potential moderator...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28348732/probuphine%C3%A2-buprenorphine-implant-a-promising-candidate-in-opioid-dependence
#8
REVIEW
Preeti Barnwal, Saibal Das, Somnath Mondal, Anand Ramasamy, Tanay Maiti, Arunava Saha
Opioid dependence leads to physical dependence and addiction which finally results in profound medical, psychological and social dysfunction. One of the useful medications for opioid dependence is buprenorphine, the partial opioid agonist, which is used alone or in combination with naloxone. However, buprenorphine is the victim of its own success due to its illicit use and accidental poisoning in children. Also, buprenorphine typically requires daily self-administration and its effectiveness heavily depends on patient adherence...
March 2017: Therapeutic Advances in Psychopharmacology
https://www.readbyqxmd.com/read/28332047/mechanisms-of-resistance-to-target-therapies-in-non-small-cell-lung-cancer
#9
Francesco Facchinetti, Claudia Proto, Roberta Minari, Marina Garassino, Marcello Tiseo
Targeted therapies are revolutionizing the treatment of advanced non-small cell lung cancer (NSCLC). The discovery of key oncogenic events mainly in lung adenocarcinoma, like EGFR mutations or ALK rearrangements, has changed the treatment landscape while improving the prognosis of lung cancer patients. Inevitably, virtually all patients initially treated with targeted therapies develop resistance because of the emergence of an insensitive cellular population, selected by pharmacologic pressure. Diverse mechanisms of resistance, in particular to EGFR, ALK and ROS1 tyrosine-kinase inhibitors (TKIs), have now been discovered and may be classified in three different groups: (1) alterations in the target (such as EGFR T790M and ALK or ROS1 mutations); (2) activation of alternative pathways (i...
March 23, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28327378/gender-related-psychopathology-in-opioid-use-disorder-results-from-a-representative-sample-of-italian-addiction-services
#10
Beniamino Leone, Marco Di Nicola, Lorenzo Moccia, Mauro Pettorruso, Luisa De Risio, Giuseppe Nucara, Lorenzo Zamboni, Antonino Callea, Luigi Janiri, Mauro Cibin, Fabio Lugoboni
AIMS: Gender and psychiatric comorbidity seem to influence patients' inter-individual response to Opioid Substitution Treatments (OST) in Opioid Use Disorder (OUD) management. The aim of the study was to assess psychopathological dimensions in an Italian sample of OUD individuals entering a methadone/buprenorphine maintenance program; secondary, we evaluated the possible gender-specific differences within the psychopathological profiles. METHODS: In a cross-sectional study, we recruited 1052 (792 male; 260 female) OUD subjects receiving OST...
March 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28326026/pre-clinical-studies-with-d-penicillamine-as-a-novel-pharmacological-strategy-to-treat-alcoholism-updated-evidences
#11
REVIEW
Alejandro Orrico, Lucía Martí-Prats, María J Cano-Cebrián, Luis Granero, Ana Polache, Teodoro Zornoza
Ethanol, as other drugs of abuse, is able to activate the ventral tegmental area dopamine (VTA-DA) neurons leading to positively motivational alcohol-seeking behavior and use, and, ultimately to ethanol addiction. In the last decades, the involvement of brain-derived acetaldehyde (ACD) in the ethanol actions in the mesolimbic pathway has been widely demonstrated. Consistent published results have provided a mechanistic support to the use of ACD inactivating agents to block the motivational and reinforcing properties of ethanol...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28319052/a-tail-of-opioid-receptor-variants
#12
Stephanie Puig, Howard B Gutstein
Opioids are the gold-standard treatment for severe pain. However, potentially life-threatening side effects decrease the safety and effectiveness of these compounds. The addiction liability of these drugs has led to the current epidemic of opioid abuse in the US. Extensive research efforts have focused on trying to dissociate the analgesic properties of opioids from their undesirable side effects. Splice variants of the mu opioid receptor (MOR), which mediates opioid actions, have unique pharmacological properties and anatomic distributions that make them attractive candidates for therapeutic pain relief...
April 3, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28315272/sigma-receptors-and-substance-use-disorders
#13
Valentina Sabino, Callum Hicks, Pietro Cottone
Thanks to advances in neuroscience, addiction is now recognized as a chronic brain disease with genetic, developmental, and cultural components. Drugs of abuse, including alcohol, are able to produce significant neuroplastic changes responsible for the profound disturbances shown by drug addicted individuals. The current lack of efficacious pharmacological treatments for substance use disorders has encouraged the search for novel and more effective pharmacotherapies. Growing evidence strongly suggests that Sigma Receptors are involved in the addictive and neurotoxic properties of abused drugs, including cocaine , methamphetamine , and alcohol...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28302509/binding-mode-analyses-of-nap-derivatives-as-mu-opioid-receptor-selective-ligands-through-docking-studies-and-molecular-dynamics-simulation
#14
Huiqun Wang, Saheem A Zaidi, Yan Zhang
Mu opioid receptor selective antagonists are highly desirable because of their utility as pharmacological probes for receptor characterization and functional studies. Furthermore, the mu opioid receptors act as an important target in drug abuse and addiction treatment. Previously, we reported NAP as a novel lead compound with high selectivity and affinity towards the mu opioid receptor. Based on NAP, we have synthesized its derivatives and further characterized their binding affinities and selectivity towards the receptor...
April 15, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28285325/mglu1-receptor-as-a-drug-target-for-treatment-of-substance-use-disorders-time-to-gather-stones-together
#15
REVIEW
Olga A Dravolina, Edwin Zvartau, Wojciech Danysz, Anton Y Bespalov
Modulation of the mGlu1 receptor was repeatedly shown to inhibit various phenomena associated with exposure to abused drugs. Efficacy in preclinical models was observed with both positive and negative allosteric modulators (PAMs and NAMs, respectively) using essentially non-overlapping sets of experimental methods. Taken together, these data indicate that the mGlu1 receptor certainly plays a significant role in the plasticity triggered by the exposure to abused drugs and is involved in the maintenance of drug-seeking and drug-taking behaviors...
March 11, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28277828/cultivating-change-door-to-door-educational-outreach-to-improve-prescribing-practices-in-rural-veterans-with-ptsd
#16
Macgregor Montaño, Nancy C Bernardy, Kathleen Sherrieb
BACKGROUND: Clinical guidelines for the management of posttraumatic stress disorder (PTSD) recommend against the use of benzodiazepines. Benzodiazepines and PTSD are both associated with addiction-related risks. VA prescribing trends show continued use of benzodiazepines and polysedative use in veterans with PTSD, particularly in rural areas. The authors examine the use of an educational intervention to improve pharmacologic management of veterans with PTSD in rural clinics. METHODS: The VA Academic Detailing Service Informatics Toolset provides prescribing, demographic and risk factor data for veterans with PTSD treated at the White River Junction VA Medical Center (WRJ VA) and affiliated rural clinics in Vermont and New Hampshire...
March 9, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28272130/pharmacological-treatment-of-adhd-in-addicted-patients-what-does-the-literature-tell-us
#17
Pieter-Jan Carpentier, Frances R Levin
LEARNING OBJECTIVES: After participating in this activity, learners should be better able to:• Evaluate pharmacologic treatment of attention deficit/hyperactivity disorder (ADHD) in patients with substance use disorder (SUD) • Assess the causes of the diminished efficacy of ADHD medication in patients with comorbid SUD OBJECTIVE: Substance use disorder (SUD) and attention-deficit/hyperactivity disorder (ADHD) frequently co-occur, and the presence of ADHD complicates the treatment of the addiction...
March 2017: Harvard Review of Psychiatry
https://www.readbyqxmd.com/read/28267152/effects-of-naltrexone-are-influenced-by-childhood-adversity-during-negative-emotional-processing-in-addiction-recovery
#18
G Savulich, R Riccelli, L Passamonti, M Correia, J F W Deakin, R Elliott, R S A Flechais, A R Lingford-Hughes, J McGonigle, A Murphy, D J Nutt, C Orban, L M Paterson, L J Reed, D G Smith, J Suckling, R Tait, E M Taylor, B J Sahakian, T W Robbins, K D Ersche
Naltrexone is an opioid receptor antagonist used in the management of alcohol dependence. Although the endogenous opioid system has been implicated in emotion regulation, the effects of mu-opioid receptor blockade on brain systems underlying negative emotional processing are not clear in addiction. Individuals meeting criteria for alcohol dependence alone (n=18, alcohol) and in combination with cocaine and/or opioid dependence (n=21, alcohol/drugs) and healthy individuals without a history of alcohol or drug dependence (n=21) were recruited...
March 7, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28265714/a-short-history-of-the-5-ht2c-receptor-from-the-choroid-plexus-to-depression-obesity-and-addiction-treatment
#19
REVIEW
Jose M Palacios, Angel Pazos, Daniel Hoyer
This paper is a personal account on the discovery and characterization of the 5-HT2C receptor (first known as the 5-HT1C receptor) over 30 years ago and how it translated into a number of unsuspected features for a G protein-coupled receptor (GPCR) and a diversity of clinical applications. The 5-HT2C receptor is one of the most intriguing members of the GPCR superfamily. Initially referred to as 5-HT1CR, the 5-HT2CR was discovered while studying the pharmacological features and the distribution of [(3)H]mesulergine-labelled sites, primarily in the brain using radioligand binding and slice autoradiography...
March 7, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28251946/-heterodimeric-d1-d2-dopamine-receptors-a-review
#20
REVIEW
N L Vekshina, P K Anokhin, A G Veretinskaya, I Yu Shamakina
This review summarizes modern data on the structure and functions ofheteromersformed by D1 and D2 dopamine receptors focusing on their role in the mechanisms of drug dependence. This article discusses potential functional significance of heterodimeric D1-D2 dopamine receptorsdue to their localization in the brain as well as unique pharmacological propertiesversus constituent monomers. It is shown that heteromerization results in dramatic changes in activated signaling pathways compare to the corresponding monomers...
January 2017: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
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