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Pharmacological treatment of addiction

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https://www.readbyqxmd.com/read/28923912/exploiting-drug-addiction-mechanisms-to-select-against-mapki-resistant-melanoma
#1
Aayoung Hong, Gatien Moriceau, Lu Sun, Shirley Lomeli, Marco Piva, Robert Damoiseaux, Sheri L Holmen, Norman E Sharpless, Willy Hugo, Roger S Lo
Melanoma resistant to MAPK inhibitor(s) (MAPKi) displays loss-of-fitness upon experimental MAPKi withdrawal and, clinically, may be re-sensitized to MAPKi therapy after a drug holiday. Here, we uncovered and therapeutically exploited the mechanisms of MAPKi-addiction in MAPKi-resistant MUTBRAF or MUTNRAS melanoma. MAPKi-addiction phenotypes evident upon drug-withdrawal spanned transient cell-cycle slow-down to cell-death responses, the latter of which required a robust p-ERK rebound. Generally, drug withdrawal-induced p-ERK rebound up-regulated p38-FRA1-JUNB-CDKN1A and down-regulated proliferation, but only a robust p-ERK rebound resulted in DNA damage and parthanatos-related cell death...
September 18, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28903322/evaluation-of-a-community-based-integrated-heroin-addiction-treatment-model-in-chinese-patients
#2
Hong-He Zhang, Lin-Xiang Tan, Wei Hao, Qi-Jian Deng
In this study, we analyzed the efficacy and feasibility of a community-based integrated heroin addiction treatment model in Chinese patients. The 210 heroin addicts belonging to six Chinese communities received an integrated biopsychosocial intervention that included pharmacological treatment, counseling and social assistance. High proportions of study participants were retained at the 12-month (91.9%; 193/210) and 24-month (88.1%; 185/210) follow-up visits. The number of morphine-positive subjects declined from 61...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28898403/healthcare-financing-systems-for-increasing-the-use-of-tobacco-dependence-treatment
#3
REVIEW
Floor A van den Brand, Gera E Nagelhout, Ayalu A Reda, Bjorn Winkens, Silvia M A A Evers, Daniel Kotz, Onno Cp van Schayck
BACKGROUND: Tobacco smoking is the leading preventable cause of death worldwide, which makes it essential to stimulate smoking cessation. The financial cost of smoking cessation treatment can act as a barrier to those seeking support. We hypothesised that provision of financial assistance for people trying to quit smoking, or reimbursement of their care providers, could lead to an increased rate of successful quit attempts. This is an update of the original 2005 review. OBJECTIVES: The primary objective of this review was to assess the impact of reducing the costs for tobacco smokers or healthcare providers for using or providing smoking cessation treatment through healthcare financing interventions on abstinence from smoking...
September 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28889008/the-interplay-between-ventro-striatal-bdnf-levels-and-the-effects-of-valproic-acid-on-the-acquisition-of-ethanol-induced-conditioned-place-preference-in-mice
#4
Manuel Alves Dos Santos, Sarah Sousa Escudeiro, Germana Silva Vasconcelos, Natália Castelo Branco Matos, Marcos Romário Matos de Souza, Manoel Cláudio Azevedo Patrocínio, Leonardo Pimentel Dantas, Danielle Macêdo, Silvânia Maria Mendes Vasconcelos
Alcohol addiction is a chronic, relapsing and progressive brain disease with serious consequences for health. Compulsive use of alcohol is associated with the capacity to change brain structures involved with the reward pathway, such as ventral striatum. Recent evidence suggests a role of chromatin remodeling in the pathophysiology of alcohol dependence and addictive-like behaviors. In addition, neuroadaptive changes mediated by the brain-derived neurotrophic factor (BDNF) seems to be an interesting pharmacological target for alcoholism treatment...
September 6, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28870523/antagonism-of-mglu2-3-receptors-in-the-nucleus-accumbens-prevents-oxytocin-from-reducing-cued-methamphetamine-seeking-in-male-and-female-rats
#5
Aurelien Bernheim, Kah-Chung Leong, Carole Berini, Carmela M Reichel
Methamphetamine (meth) addiction is a prevalent health concern worldwide, yet remains without approved pharmacological treatments. Preclinical evidence suggests that oxytocin may decrease relapse, but the neuronal underpinnings driving this effect remain unknown. Here we investigate whether oxytocin's effect is dependent on presynaptic glutamatergic regulation in the nucleus accumbens core (NAcore) by blocking metabotropic glutamate receptors 2/3 (mGluR2/3). Male and female Sprague-Dawley rats self-administered meth or sucrose on an escalating fixed ratio, followed by extinction and cue-induced reinstatement sessions...
September 1, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28867701/a-metabolic-study-on-the-biochemical-effects-of-chiral-illegal-drugs-in-rats-using-1-h-nmr-spectroscopy
#6
Kiyoshi Fukuhara, Akiko Ohno, Ruri Kikura-Hanajiri
 Considering the pharmacological effects of chiral drugs, enantiopure drugs may differ from their racemic mixture formulation in efficacy, potency, or adverse effects. Levomethorphan (LVM) and Dextromethorphan (DXM) act on the central nervous system and exhibit different pharmacological features. LVM, the l-stereoisomer of methorphan, shows many similarities to opiates such as heroin, morphine and codeine, including the potential for addiction, while the d-stereoisomer, DXM, does not have the same opioid effect...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
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/28822321/neurostimulation-techniques-in-the-treatment-of-cocaine-dependence-a-review-of-the-literature
#8
REVIEW
Fady Rachid
OBJECTIVE: Cocaine use disorder is a very common condition that represents a substantial public health problem, and no effective pharmacological or psychological therapies have been identified to date. Urgent therapeutic alternatives are therefore needed such as neurostimulation techniques. The purpose of this review is to describe and discuss studies that have evaluated the safety and efficacy of these techniques for the treatment of cocaine dependence. METHODS: The electronic literature on repetitive transcranial magnetic stimulation, theta-burst stimulation, deep transcranial magnetic stimulation, transcranial direct current stimulation, magnetic seizure therapy, electroconvulsive therapy, cranial electro-stimulation, and deep brain stimulation in the treatment of cocaine addiction were reviewed...
August 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28822300/drinking-water-to-reduce-alcohol-craving-a-randomized-controlled-study-on-the-impact-of-ghrelin-in-mediating-the-effects-of-forced-water-intake-in-alcohol-addiction
#9
Anne Koopmann, Katharina Lippmann, Rilana Schuster, Iris Reinhard, Patrick Bach, Georg Weil, Marcella Rietschel, Stephanie H Witt, Klaus Wiedemann, Falk Kiefer
BACKGROUND: Recent data suggest that ghrelin is involved in the pathophysiology of alcohol use disorders, affecting alcohol self-administration and craving. Gastric ghrelin secretion is reduced by stomach distension. We now tested the hypothesis whether the clinically well-known effects of high-volume water intake on craving reduction in alcoholism is mediated by acute changes in ghrelin secretion. METHODS: In this randomized human laboratory study, we included 23 alcohol-dependent male inpatient subjects who underwent alcohol cue exposure...
August 5, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28812378/bevacizumab-in-advanced-lung-cancer-state-of-the-art
#10
Sandra Assoun, Solenn Brosseau, Christelle Steinmetz, Valérie Gounant, Gérard Zalcman
Despite recent advances in metastatic lung cancer treatment with the advent of immune checkpoint inhibitors and molecules targeting addictive genomic abnormalities, prognosis of most of the patients remains unfavorable. Combination approaches with older drugs, such as bevacizumab, should be thus envisioned. Bevacizumab is a monoclonal anti-VEGF antibody, approved by the US FDA and the EMA in first-line and maintenance settings of advanced nonsquamous non-small-cell lung cancer (NSCLC) treatment, in association with platinum-based chemotherapy...
August 16, 2017: Future Oncology
https://www.readbyqxmd.com/read/28806638/patient-preferences-and-extended-release-naltrexone-a-new-opportunity-to-treat-opioid-use-disorders-in-ukraine
#11
Ruthanne Marcus, Iuliia Makarenko, Alyona Mazhnaya, Alexei Zelenev, Maxim Polonsky, Lynn Madden, Sergii Filippovych, Sergii Dvoriak, Sandra A Springer, Frederick L Altice
BACKGROUND: Scaling up HIV prevention for people who inject drugs (PWID) using opioid agonist therapies (OAT) in Ukraine has been restricted by individual and structural factors. Extended-release naltrexone (XR-NTX), however, provides new opportunities for treating opioid use disorders (OUDs) in this region, where both HIV incidence and mortality continue to increase. METHODS: Survey results from 1613 randomly selected PWID from 5 regions in Ukraine who were currently, previously or never on OAT were analyzed for their preference of pharmacological therapies for treating OUDs...
October 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28806585/relationship-between-craving-and-plasma-leptin-concentrations-in-patients-with-cocaine-addiction
#12
Giovanni Martinotti, Chiara Montemitro, Gaia Baroni, Sara Andreoli, Flaminia Alimonti, Marco Di Nicola, Federico Tonioni, Lorenzo Leggio, Massimo di Giannantonio, Luigi Janiri
BACKGROUND: There is robust evidence indicating an overlap between neurobiological circuitry and pathways that regulate addictions and those that regulate appetite and food intake. Rodent work suggests a role of the appetitive peptide leptin in cocaine-seeking behaviours. The goal of this study was to investigate the possible relationship between plasma leptin concentrations and cocaine craving and use in patients seeking treatment for cocaine dependence. METHODS: Patients (N=43) with a DSM-IV diagnosis of cocaine dependence were studied before starting detoxification (baseline; T0) and then again 14days after (T1; only those patients who abstained from cocaine during the study)...
August 5, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28800803/addictive-disorders-in-adolescents
#13
REVIEW
Anh Truong, Nidal Moukaddam, Alexander Toledo, Edore Onigu-Otite
Addictive disorders in youth represent a dynamic field characterized by shifting patterns of substance use and high rates of experimentation, while retaining the risky behaviors and negative outcomes associated with established drug classes. Youth/adolescents are also at the forefront of use of new technologies, and non-substance-related disorders are pertinent. These disorders present with similar pictures of impairment, and can be diagnosed following the same principles. An underlying mental disorder and the possibility of a dual diagnosis need to be assessed carefully, and optimal treatment includes psychosocial treatments with applicable pharmacologic management, the latter representing an expanding field...
September 2017: Psychiatric Clinics of North America
https://www.readbyqxmd.com/read/28800184/use-of-non-pharmacological-strategies-for-pain-relief-in-addiction-treatment-patients-with-chronic-pain
#14
Lewei Allison Lin, Amy S B Bohnert, Mary Jannausch, Jenna Goesling, Mark A Ilgen
BACKGROUND AND OBJECTIVES: We examined use of non-pharmacological treatments for pain in addiction treatment patients. METHODS: Patients in addiction treatment with chronic pain (N = 501) were classified based on use of non-pharmacological pain treatments. Demographic and clinical correlates were compared. RESULTS: A total of 49% (N = 243) of patients used a non-pharmacological treatment in the past year versus 72% (N = 361) who used opioids...
September 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28797614/delayed-varenicline-administration-reduces-inflammation-and-improves-forelimb-use-following-experimental-stroke
#15
Siyi Chen, Laura Bennet, Ailsa L McGregor
BACKGROUND: Pharmacological activation of the cholinergic anti-inflammatory pathway (CAP), specifically by activating α7 nicotinic acetylcholine receptors, has been shown to confer short-term improvements in outcome. Most studies have investigated administration within 24 hours of stroke, and few have investigated drugs approved for use in human patients. We investigated whether delayed administration of varenicline, a high-affinity agonist at α7 nicotinic receptors and an established therapy for nicotine addiction, decreased brain inflammation and improved functional performance in a mouse model of experimental stroke...
August 7, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28782217/predicting-drug-interactions-in-addiction-treatment
#16
Catherine J Lucas, Joanne Patel, Jennifer H Martin
It is not uncommon to be treating people with addiction who also have significant other health problems, including heart, renal or liver failure, diabetes and vascular disease. These conditions require regular medications to be taken. This can be a problem for people living with addiction and difficult social circumstances affecting compliance, among other issues. Our perspective provides a summary of general pharmacological factors affecting medicine taking in people with addiction problems, to provide a guide for hospital doctors in this setting...
August 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28772011/brain-molecular-changes-and-behavioral-alterations-induced-by-propofol-anesthesia-exposure-in-peripubertal-rats
#17
Željko Pavković, Kosara Smiljanić, Selma Kanazir, Desanka Milanović, Vesna Pešić, Sabera Ruždijić
BACKGROUND: Propofol is commonly used in modern anesthesiology. Some findings suggest that it is highly addictive. AIM: In this study it was examined whether propofol anesthesia exposure was able to induce behavioral alterations and brain molecular changes already described in addictive drug usage in peripubertal rats, during the onset of mid/periadolescence as a developmental period with increasing vulnerability to drug addiction. METHODS: The expression of D1 dopamine receptor, a dopamine, and cAMP-regulated phosphoprotein with a Mr 32 000; Ca(2+) /calmodulin-dependent protein kinase IIα; and Finkel-Biskis-Jinkins murine osteosarcoma viral oncogene homolog-B was examined in peripubertal rats 4, 24, and 48 hour after propofol anesthesia exposure by Western blot and immunohistochemistry...
September 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28763183/-the-most-cited-themes-in-the-research-in-the-field-of-mental-health-analyses-of-six-international-nursing-and-medical-journals
#18
Laura Cunico, Susanna Fredo, Massimo Bernini
INTRODUCTION: The review aimed to identify and analyse the future development on the topic by analysing the main themes discussed in number of scientific journal focused on Mental Health both by nurses and physicians.. METHOD: 4 international journals focused on Mental health and psychiatry International Journal of Mental Health Nursing, Archives of Psychiatric Nursing, American Journal of Psychiatry, Australian and New Zeland Journal of Psychiatry as well as two journal focused generically on health, Journal of Advanced Nursing and Lancet were scrutinized...
April 2017: Professioni Infermieristiche
https://www.readbyqxmd.com/read/28762314/insights-into-nicotinic-receptor-signaling-in-nicotine-addiction-implications-for-prevention-and-treatment
#19
Wuyi Liu, Ming D Li
Nicotinic acetylcholine receptors (nAChRs) belong to the Cys-loop ligand-gated ion-channel (LGIC) superfamily, which also includes the GABA, glycine, and serotonin receptors. Many nAChR subunits have been identified and shown to be involved in signal transduction on binding to them of either the neurotransmitter acetylcholine or exogenous ligands such as nicotine. The nAChRs are pentameric assemblies of homologous subunits surrounding a central pore that gates cation flux, and they are expressed at neuromuscular junctions throughout the nervous system...
August 1, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28757154/the-central-serotonin2b-receptor-as-a-new-pharmacological-target-for-the-treatment-of-dopamine-related-neuropsychiatric-disorders-rationale-and-current-status-of-research
#20
REVIEW
Céline Devroye, Adeline Cathala, Pier Vincenzo Piazza, Umberto Spampinato
The serotonin2B receptor (5-HT2BR), which was first cloned and characterized in the rat stomach fundus, is the most recent addition to the 5-HT2R family. While its involvement in the regulation of gastrointestinal, vascular, pulmonary and cardiac physiology has been widely investigated, its functional role within the central nervous system (CNS) has received much less attention. Nevertheless, when considering the data available in the literature with regards to the regulatory control exerted by the central 5-HT2BR on dopamine (DA) and serotonin (5-HT) neuron activity, a very interesting picture emerges and highlights the key role of these receptors for future therapeutic strategies of DA-related neuropsychiatric disorders...
July 27, 2017: Pharmacology & Therapeutics
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