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Behavioral addictions

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https://www.readbyqxmd.com/read/29227790/interpersonal-and-intrapersonal-emotional-processes-in-individuals-treated-for-alcohol-use-disorder-and-non-addicted-healthy-individuals
#1
Maciej Kopera, Elisa M Trucco, Andrzej Jakubczyk, Hubert Suszek, Aneta Michalska, Aleksandra Majewska, Natalia Szejko, Agata Łoczewska, Aleksandra Krasowska, Anna Klimkiewicz, Kirk J Brower, Robert A Zucker, Marcin Wojnar
INTRODUCTION: Prior work largely confirms the presence of various emotional processing deficits among individuals with an alcohol use disorder (AUD); however, their specificity and relevance still warrant investigation. The aim of the current study was to compare selected aspects of emotional processing (i.e., mental state recognition, alexithymia, and emotional intelligence) between individuals treated for an AUD and healthy individuals. METHODS: The AUD sample consisted of 92 abstinent men with AUD who were participating in an 8-week inpatient abstinence-based treatment program in Warsaw, Poland...
December 5, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/29227676/studying-sex-differences-in-animal-models-of-addiction-an-emphasis-on-alcohol-related-behaviors
#2
Elisa R Hilderbrand, Amy W Lasek
Animal models are essential for understanding the biological factors that contribute to drug and alcohol addiction and discovering new pharmacotherapies to treat these disorders. Alcohol (ethanol) is the most commonly abused drug in the world, and as the prevalence of alcohol use disorder (AUD) increases, so does the need for effective pharmacotherapies. In particular, treatments with high efficacy in the growing number of female AUD sufferers are needed. Female animals remain underrepresented in biomedical research and sex differences in the brain's response to alcohol are poorly understood...
December 11, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29227643/structure-activity-relationship-studies-on-a-series-of-3%C3%AE-bis-4-fluorophenyl-methoxy-tropanes-and-3%C3%AE-bis-4-fluorophenyl-methylamino-tropanes-as-novel-atypical-dopamine-transporter-dat-inhibitors-for-the-treatment-of-cocaine-use-disorders
#3
Mu-Fa Zou, Jianjing Cao, Ara M Abramyan, Theresa Kopajtic, Claudio Zanettini, Daryl A Guthrie, Rana Rais, Barbara S Slusher, Lei Shi, Claus J Loland, Amy Hauck Newman
The development of medications to treat cocaine use disorders has thus far defied success, leaving this patient population without pharmacotherapeutic options. As the dopamine transporter (DAT) plays a prominent role in the reinforcing effects of cocaine that can lead to addiction, atypical DAT inhibitors have been developed that prevent cocaine from binding to DAT, but they themselves are not cocaine-like. Herein, a series of novel DAT inhibitors were synthesized, and based on its pharmacological profile, the lead compound 10a was evaluated in phase I metabolic stability studies in mouse liver microsomes and compared to cocaine in locomotor activity and drug discrimination paradigms in mice...
December 11, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29225043/neurogranin-in-the-nucleus-accumbens-regulates-nmda-receptor-tolerance-and-motivation-for-ethanol-seeking
#4
Ashlie N Reker, Alfredo Oliveros, John M Sullivan, Lailun Nahar, David J Hinton, Taehyun Kim, Robert C Bruner, Doo-Sup Choi, Nicholas E Goeders, Hyung W Nam
Dysfunction of N-methyl-D-aspartate receptor (NMDAR) signaling in the nucleus accumbens (NAc) has been implicated in the pathophysiology of alcohol use disorders (AUD). Neurogranin (Ng), a calmodulin-binding protein, is exclusively expressed in the post-synapse, and mediates NMDAR driven synaptic plasticity by regulating the calcium-calmodulin (Ca2+-CaM) pathway. To study the functional role of Ng in AUD, we administrated behavior tests including Pavlovian instrument transfer (PIT), operant conditioning, and rotarod test using Ng null mice (Ng-/- mice)...
December 7, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29223527/low-doses-of-prenatal-ethanol-exposure-and-maternal-separation-alter-hpa-axis-function-and-ethanol-consumption-in-adult-male-rats
#5
F Biggio, G Talani, V Locci, M G Pisu, G Boero, B Ciarlo, D R Grayson, M Serra
Adverse maternal behaviors during pregnancy and unfavorable postnatal experiences during development are associated with an increased risk of developing psychiatric disorders, as well as, a vulnerability to alcohol addiction in adulthood. Here, we examined the effects of combined ethanol exposure during late pregnancy and postnatal maternal separation (MS) on HPA responsiveness, anxiety behavior and preference for alcohol consumption in adult male rats. Animals exposed to both conditions revealed a decrease in blood levels of allopregnanolone accompanied by increased anxiety behavior...
December 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29221791/online-effects-of-transcranial-direct-current-stimulation-on-prefrontal-metabolites-in-gambling-disorder
#6
Maya Dickler, Christophe Lenglos, Emmanuelle Renauld, Francine Ferland, Richard A Edden, Jean Leblond, Shirley Fecteau
Gambling disorder is characterized by persistent maladaptive gambling behaviors and is now considered among substance-related and addictive disorders. There is still unmet therapeutic need for these clinical populations, however recent advances indicate that interventions targeting the Glutamatergic/GABAergic system hold promise in reducing symptoms in substance-related and addictive disorders, including gambling disorder. There is some data indicating that transcranial direct current stimulation may hold clinical benefits in substance use disorders and modulate levels of brain metabolites including glutamate and GABA...
December 5, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29217682/overexpression-of-the-histone-dimethyltransferase-g9a-in-nucleus-accumbens-shell-increases-cocaine-self-administration-stress-induced-reinstatement-and-anxiety
#7
Ethan M Anderson, Erin B Larson, Daniel Guzman, Anne Marie Wissman, Rachael L Neve, Eric J Nestler, David W Self
Repeated exposure to cocaine induces lasting epigenetic changes in neurons that promote the development and persistence of addiction. One epigenetic alteration involves reductions in levels of the histone dimethyltransferase, G9a, in nucleus accumbens (NAc) after chronic cocaine administration. This reduction in G9a may enhance cocaine reward since overexpressing G9a in the NAc decreases cocaine-conditioned place preference. Thus, we hypothesized that HSV-mediated G9a overexpression in the NAc shell (NAcSh) would attenuate cocaine self-administration and cocaine-seeking behavior...
December 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29217409/proteasome-phosphorylation-regulates-cocaine-induced-sensitization
#8
Frankie R Gonzales, Kristin K Howell, Lara E Dozier, Stephan G Anagnostaras, Gentry N Patrick
Repeated exposure to cocaine produces structural and functional modifications at synapses from neurons in several brain regions including the nucleus accumbens. These changes are thought to underlie cocaine-induced sensitization. The ubiquitin proteasome system plays a crucial role in the remodeling of synapses and has recently been implicated in addiction-related behavior. The ATPase Rpt6 subunit of the 26S proteasome is phosphorylated by Ca2+/calmodulin-dependent protein kinases II alpha at ser120 which is thought to regulate proteasome activity and distribution in neurons...
December 4, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29216892/opiate-agonist-treatment-to-improve-health-of-individuals-with-opioid-use-disorder-in-lebanon
#9
Ali Ghaddar, Zeinab Abbas, Ramzi Haddad
BACKGROUND: Opioid agonist therapy has been widely used to reduce harms among individuals with opioid use disorder but its effectiveness has not been evaluated in the Middle East North African (MENA) region. This study aims to evaluate the effectiveness of a program using opioid agonist therapy in combination with psychosocial support on improving psychological and social well-being, reducing arrest, and reducing risky behavior in individuals with opioid use disorder in Lebanon. METHODS: A one-group pre-test post-test design study was performed at SKOUN Lebanese Addiction Centre between January 2013 and December 2014...
December 8, 2017: Harm Reduction Journal
https://www.readbyqxmd.com/read/29216351/1-adrenoceptor-in-the-central-amygdala-is-required-for-unconditioned-stimulus-induced-drug-memory-reconsolidation
#10
Huiwen Zhu, Yiming Zhou, Zhiyuan Liu, Xi Chen, Yanqing Li, Xing Liu, Lan Ma
Background: Drug memories become labile and reconsolidated after retrieval by presentation of environmental cues (conditioned stimulus, CS) or drugs (unconditioned stimulus, US). Whether CS- and US-retrieval trigger different memory reconsolidation processes is not clear. Methods: Protein synthesis inhibitor or β-AR antagonist was systemically administrated or intra-central amygdala (CeA) infused immediately after cocaine re-exposure in cocaine-conditioned place preference (CPP) or self-administration (SA) mice models...
December 5, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29214467/different-functional-domains-measured-by-cocaine-self-administration-under-the-progressive-ratio-and-punishment-schedules-in-male-wistar-rats
#11
Udita Datta, Mariangela Martini, WenLin Sun
BACKGROUND: Current diagnosis of drug addiction like other mental disorders is based on clinical symptoms not on neural pathophysiology and consequently, does not provide useful information on the underlying pathophysiology and may impede the efforts to identify the underlying mechanisms. Identifying the functional deficits that are relevant to addiction and can be traced to the neural systems will greatly facilitate our understanding of the heterogeneity of the condition and improve future diagnosis and treatment...
December 6, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/29211831/towards-standardizing-the-alcoholism-evaluation-of-potential-liver-transplant-recipients
#12
Thomas P Beresford, Michael R Lucey
Aims: For teams around the world, alcoholic liver disease patients comprise the largest, and clinically most controversial, group applying for liver transplant. And yet evaluation decisions for them remain highly variable by locale. Methods: Targeting standardized assessment, we provide guidelines on what information the transplant team should seek, from what sources, and how best to make use of it. This report focuses on 'what to do and how to do it' in providing appropriate assessments for this complex patient group...
December 4, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/29209752/-addiction-as-an-attachment-disorder
#13
REVIEW
H F Unterrainer, M Hiebler-Ragger, L Rogen, H P Kapfhammer
BACKGROUND: There is no commonly accepted model for describing the development and treatment of substance use disorders (SUD); however, over several decades the attachment theory has represented an important basis for the clinical handling of SUD. This study gives a systematic review of empirical studies regarding the relationship between SUD and disorders of attachment behavior. OBJECTIVE: Is there a positive relationship between disorders of attachment behavior and the presence of SUD? METHOD: Various databases (PsychInfo, Web of Science, PubMed) were systematically searched in order to pinpoint relevant studies in books and articles published in English or German...
December 5, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/29209170/noradrenaline-modulates-the-membrane-potential-and-holding-current-of-medial-prefrontal-cortex-pyramidal-neurons-via-%C3%AE-1-adrenergic-receptors-and-hcn-channels
#14
Katarzyna Grzelka, Przemysław Kurowski, Maciej Gawlak, Paweł Szulczyk
The medial prefrontal cortex (mPFC) receives dense noradrenergic projections from the locus coeruleus. Adrenergic innervation of mPFC pyramidal neurons plays an essential role in both physiology (control of memory formation, attention, working memory, and cognitive behavior) and pathophysiology (attention deficit hyperactivity disorder, posttraumatic stress disorder, cognitive deterioration after traumatic brain injury, behavioral changes related to addiction, Alzheimer's disease and depression). The aim of this study was to elucidate the mechanism responsible for adrenergic receptor-mediated control of the resting membrane potential in layer V mPFC pyramidal neurons...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29207107/modular-organization-of-a-hypocretin-gene-minimal-promoter
#15
Adriana Sánchez-García, Griselda A Cabral-Pacheco, Viviana C Zomosa-Signoret, Rocío Ortiz-López, Alberto Camacho, Paulo M Tabera-Tarello, José A Garnica-López, Román Vidaltamayo
Orexins or hypocretins are neurotransmitters produced by a small population of neurons in the lateral hypothalamus. This family of peptides modulates sleep‑wake cycle, arousal and feeding behaviors; however, the mechanisms regulating their expression remain to be fully elucidated. There is an interest in defining the key molecular elements in orexin regulation, as these may serve to identify targets for generating novel therapies for sleep disorders, obesity and addiction. Our previous studies showed that the expression of orexin was decreased in mice carrying null‑mutations of the transcription factor early B‑cell factor 2 (ebf2) and that the promoter region of the prepro‑orexin (Hcrt) gene contained two putative ebf‑binding sites, termed olf‑1 sites...
November 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29206881/deletion-of-lynx1-reduces-the-function-of-%C3%AE-6-nicotinic-receptors
#16
Rell L Parker, Heidi C O'Neill, Beverley M Henley, Charles R Wageman, Ryan M Drenan, Michael J Marks, Julie M Miwa, Sharon R Grady, Henry A Lester
The α6 nicotinic acetylcholine receptor (nAChR) subunit is an attractive drug target for treating nicotine addiction because it is present at limited sites in the brain including the reward pathway. Lynx1 modulates several nAChR subtypes; lynx1-nAChR interaction sites could possibly provide drug targets. We found that dopaminergic cells from the substantia nigra pars compacta (SNc) express lynx1 mRNA transcripts and, as assessed by co-immunoprecipitation, α6 receptors form stable complexes with lynx1 protein, although co-transfection with lynx1 did not affect nicotine-induced currents from cell lines transfected with α6 and β2...
2017: PloS One
https://www.readbyqxmd.com/read/29206183/gaming-device-usage-patterns-predict-internet-gaming-disorder-comparison-across-different-gaming-device-usage-patterns
#17
Soo-Hyun Paik, Hyun Cho, Ji-Won Chun, Jo-Eun Jeong, Dai-Jin Kim
Gaming behaviors have been significantly influenced by smartphones. This study was designed to explore gaming behaviors and clinical characteristics across different gaming device usage patterns and the role of the patterns on Internet gaming disorder (IGD). Responders of an online survey regarding smartphone and online game usage were classified by different gaming device usage patterns: (1) individuals who played only computer games; (2) individuals who played computer games more than smartphone games; (3) individuals who played computer and smartphone games evenly; (4) individuals who played smartphone games more than computer games; (5) individuals who played only smartphone games...
December 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29204977/managing-concerning-behaviors-in-patients-prescribed-opioids-for-chronic-pain-a-delphi-study
#18
Jessica S Merlin, Sarah R Young, Joanna L Starrels, Soraya Azari, E Jennifer Edelman, Jamie Pomeranz, Payel Roy, Shalini Saini, William C Becker, Jane M Liebschutz
BACKGROUND: Current guideline-recommended monitoring of patients prescribed long-term opioid therapy (LTOT) for chronic pain will likely result in increased identification of behaviors of concern for misuse and addiction, but there is a dearth of empiric evidence about how these behaviors should be managed. OBJECTIVE: To establish expert consensus about treatment approaches for common and challenging concerning behaviors that arise among patients on LTOT. DESIGN: We used a Delphi approach, which allows for generation of consensus...
December 4, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/29203423/compulsivity-related-neurocognitive-performance-deficits-in-gambling-disorder-a-systematic-review-and-meta-analysis
#19
REVIEW
Tim van Timmeren, Joost G Daams, Ruth J van Holst, Anna E Goudriaan
Compulsivity is a core feature of addictive disorders, including gambling disorder. However, it is unclear to what extent this compulsive behavior in gambling disorder is associated with abnormal compulsivity-related neurocognitive functioning. Here, we summarize and synthesize the evidence for compulsive behavior, as assessed by compulsivity-related neurocognitive tasks, in individuals with gambling disorder compared to healthy controls (HCs). A total of 29 studies, comprising 41 task-results, were included in the systematic review; 32 datasets (n=1,072 individuals with gambling disorder; n=1,312 HCs) were also included in the meta-analyses, conducted for each cognitive task separately...
December 1, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29199843/motivational-interviewing-enhancement-and-brief-interventions-over-the-last-decade-a-review-of-reviews-of-efficacy-and-effectiveness
#20
Carlo C DiClemente, Catherine M Corno, Meagan M Graydon, Alicia E Wiprovnick, Daniel J Knoblach
Motivation is a well-established predictor of recovery for addictive behaviors. Treatments aimed at changing substance use and gambling frequently employ motivational enhancing strategies, based in the principles of Motivational Interviewing (MI). Evidence for these approaches across addictive behaviors does not always paint a clear picture. The purpose of this review was to examine existing reviews of motivational-based interventions for various substances of abuse and gambling in the last decade to gain a deeper understanding of the current evidence and implications for future research and clinical practice...
December 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
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