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Behavioral addictions

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https://www.readbyqxmd.com/read/28441678/the-addiction-recovery-clinic-a-novel-primary-care-based-approach-to-teaching-addiction-medicine
#1
Stephen R Holt, Nora Segar, Dana A Cavallo, Jeanette M Tetrault
PROBLEM: Substance use is highly prevalent in the United States, but little time in the curriculum is devoted to training internal medicine residents in addiction medicine. APPROACH: In 2014, the authors developed and launched the Addiction Recovery Clinic (ARC) to address this educational gap while also providing outpatient clinical services to patients with substance use disorders. The ARC is embedded within the residency primary care practice and is staffed by three to four internal medicine residents, two board-certified addiction medicine specialists, one chief resident, and one psychologist...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441119/comparable-efficacy-of-behavioral-and-pharmacological-treatments-among-african-american-and-white-cocaine-users
#2
LaTrice Montgomery, Kathleen M Carroll
Multiple randomized clinical trials (RCTs) have evaluated a range of treatments for cocaine dependence, but few of these have focused specifically on the racial diversity observed among cocaine-dependent patients. The present analyses evaluated racial variation in cocaine use and addiction-related psychosocial outcomes at baseline and follow-up among 388 African American and White adults participating in 1 of 5 RCTs evaluating a range of pharmacological and behavioral treatments for cocaine use disorders. General linear modeling (GLM) indicated significant racial variation in cocaine and psychosocial indicators at baseline...
April 25, 2017: Journal of Ethnicity in Substance Abuse
https://www.readbyqxmd.com/read/28440102/smoking-addiction-the-shift-from-head-to-hands-approach-bias-towards-smoking-related-cues-in-low-dependent-versus-dependent-smokers
#3
Sandrine Detandt, Ariane Bazan, Etienne Quertemont, Paul Verbanck
The dual process theory is central to several models of addiction, implying both an increase of stimulus salience and deficits in inhibitory control. Our major aim is to provide behavioral evidence for an approach bias tendency in smokers and more specifically during smoking cue exposure. The second aim is to examine whether this bias differs in low-dependent versus dependent smokers. Thirty-two smokers (17 low dependent and 15 dependent; cut-off FTND of 4) and 28 non-smokers performed a modified Go/NoGo task using tobacco-related words and neutral words as stimuli...
March 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28440084/prevalence-and-co-occurrence-of-addictive-behaviors-among-russian-and-spanish-youth
#4
Jennifer Tsai, Jimi Huh, Bulat Idrisov, Artur Galimov, Jose P Espada, María T Gonzálvez, Steve Sussman
Recently, an addiction matrix measure was assessed among U.S. former alternative high school youth. This presentation seeks to examine the generalizability of findings using this measure among Russian and Spanish high school adolescents. Latent class analysis was used to explore addiction subgroups among adolescents in Russia (average age = 16.27; n = 715) and Spain (average age = 14.9; n = 811). Last 30-day prevalence of one or more of 11 addictions reviewed in the previous work was the primary focus (i...
January 1, 2017: Journal of Drug Education
https://www.readbyqxmd.com/read/28439100/ventral-striatal-regulation-of-crem-mediates-impulsive-action-and-drug-addiction-vulnerability
#5
M L Miller, Y Ren, H Szutorisz, N A Warren, C Tessereau, G Egervari, A Mlodnicka, M Kapoor, B Chaarani, C V Morris, G Schumann, H Garavan, A M Goate, M J Bannon, J M Halperin, Y L Hurd
Impulsivity, a multifaceted behavioral hallmark of attention-deficit/hyperactivity disorder (ADHD), strongly influences addiction vulnerability and other psychiatric disorders that incur enormous medical and societal burdens yet the neurobiological underpinnings linking impulsivity to disease remain poorly understood. Here we report the critical role of ventral striatal cAMP-response element modulator (CREM) in mediating impulsivity relevant to drug abuse vulnerability. Using an ADHD rat model, we demonstrate that impulsive animals are neurochemically and behaviorally more sensitive to heroin and exhibit reduced Crem expression in the nucleus accumbens core...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28436559/dopamine-d1-or-d2-receptor-expressing-neurons-in-the-central-nervous-system
#6
Xiaoyan Wei, Tengfei Ma, Yifeng Cheng, Cathy C Y Huang, Xuehua Wang, Jiayi Lu, Jun Wang
Dopamine signals mainly through D1 receptors (D1Rs) and D2 receptors (D2Rs); D1R-expressing or D2R-expressing neurons contribute to distinct reward and addictive behaviors. Traditionally, transgenic mice expressing green fluorescent protein (GFP) under D1R or D2R promoters are used for fluorescent verification in electrophysiology studies, whereas Cre mice are employed for behavioral research. However, it is unknown whether the same neuronal populations are targeted in GFP and Cre mice. Additionally, while D1Rs and D2Rs are known to be expressed in different striatal neurons, their expression patterns outside the striatum remain unclear...
April 24, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28436446/opioid-self-administration-is-attenuated-by-early-life-experience-and-gene-therapy-for-anti-inflammatory-il-10-in-the-nucleus-accumbens-of-male-rats
#7
Michael J Lacagnina, Ashley M Kopec, Stewart S Cox, Richa Hanamsagar, Corinne Wells, Susan Slade, Peter M Grace, Linda R Watkins, Edward D Levin, Staci D Bilbo
Early-life conditions can contribute to the propensity for developing neuropsychiatric disease, including substance abuse disorders. However, the long-lasting mechanisms that shape risk or resilience for drug addiction remain unclear. Previous work has shown that a neonatal handling procedure in rats (which promotes enriched maternal care) attenuates morphine conditioning, reduces morphine-induced glial activation, and increases microglial expression of the anti-inflammatory cytokine interleukin-10 (IL-10)...
April 24, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28436309/corticotropin-releasing-hormone-binding-protein-and-stress-from-invertebrates-to-humans
#8
Kyle D Ketchesin, Gwen S Stinnett, Audrey F Seasholtz
Corticotropin-releasing hormone (CRH) is a key regulator of the stress response. This peptide controls the hypothalamic-pituitary adrenal (HPA) axis as well as a variety of behavioral and autonomic stress responses via the two CRH receptors, CRH-R1 and CRH-R2. The CRH system also includes an evolutionarily conserved CRH-binding protein (CRH-BP), a secreted glycoprotein that binds CRH with subnanomolar affinity to modulate CRH receptor activity. In this review, we discuss the current literature on CRH-BP and stress across multiple species, from insects to humans...
April 23, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28435008/cortical-and-amygdalar-neuronal-ensembles-in-alcohol-seeking-drinking-and-withdrawal
#9
REVIEW
Olivier George, Bruce T Hope
Alcohol induces many alterations in the brain that are thought to contribute to alcohol addiction. Most of the known alterations are induced in all neurons of a brain area or all neurons of a given cell type, regardless of whether they were activated during behavior. While these alterations can have important modulatory effects on behavior, they cannot explain why animals respond specifically to alcohol-paired cues as opposed to all other non-paired cues, and evoke highly specific goal-directed learned responses in models of drug craving...
April 20, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28434654/compulsive-addiction-like-aggressive-behavior-in-mice
#10
Sam A Golden, Conor Heins, Marco Venniro, Daniele Caprioli, Michelle Zhang, David H Epstein, Yavin Shaham
BACKGROUND: Some people are highly motivated to seek aggressive encounters, and among those who have been incarcerated for such behavior, recidivism rates are high. These observations echo two core features of drug addiction: high motivation to seek addictive substances, despite adverse consequences, and high relapse rates. Here we used established rodent models of drug addiction to determine whether they would be sensitive to "addiction-like" features of aggression in CD-1 mice. METHODS: In experiments 1 and 2, we trained older CD-1 mice to lever press for opportunities to attack younger C57BL6/J mice...
March 17, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28434253/risky-sexual-behaviors-as-correlates-of-depression-and-suicidal-ideation-among-male-hiv-test-seekers-at-a-voluntary-counseling-and-testing-facility-in-taiwan
#11
Chia-Chun Lin, Yuan-Ti Lee, Hao-Jan Yang
This study aims at determining the level of depression and suicidal status of adult HIV test-seekers. Of the total enrolled 850 males, almost 50% reported some risk behaviors, 38.9% experienced depression, and 7.2% had suicidal ideation. Subjects with risky sexual behaviors in terms of repeated HIV test, had a history of sexually transmitted disease, engaged in one-night stands, or did not use condoms all the time with causal sexual partners were more likely to have depression. Furthermore, subjects who were bisexual/homosexual, engaged in Internet sex, engaged in one-night stands, or used addictive drugs within the past 6 months were more likely to experience suicidal ideation...
April 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28433417/mechanistic-insights-into-epigenetic-modulation-of-ethanol-consumption
#12
Igor Ponomarev, Claire E Stelly, Hitoshi Morikawa, Yuri A Blednov, R Dayne Mayfield, R Adron Harris
There is growing evidence that small-molecule inhibitors of epigenetic modulators, such as histone deacetylases (HDAC) and DNA methyltransferases (DNMT), can reduce voluntary ethanol consumption in animal models, but molecular and cellular processes underlying this behavioral effect are poorly understood. We used C57BL/6J male mice to investigate the effects of two FDA-approved drugs, decitabine (a DNMT inhibitor) and SAHA (an HDAC inhibitor), on ethanol consumption using two tests: binge-like drinking in the dark (DID) and chronic intermittent every other day (EOD) drinking...
March 12, 2017: Alcohol
https://www.readbyqxmd.com/read/28432846/pathological-internet-use-cyberbullying-and-mobile-phone-use-in-adolescence-a-school-based-study-in-greece
#13
Zoi Tsimtsiou, Anna-Bettina Haidich, Anastasios Drontsos, Fotini Dantsi, Zafiria Sekeri, Evangelos Drosos, Nikolaos Trikilis, Theodoros Dardavesis, Panagiotis Nanos, Malamatenia Arvanitidou
Purpose This study investigated the prevalence of Internet addiction (IA) and cyberbullying and examined profiles of adolescents with increased risk to develop pathological behaviors. Methods In this cross-sectional, school-based study, 8053 students of 30 middle and 21 high schools (12-18 years old) were invited to participate, based on a multistage stratified random sampling technique. The Internet aiddiction test (IAT) was used along with information on socio-demographics, Internet activities and cyberbullying experience...
April 22, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28432009/the-lateral-hypothalamus-to-lateral-habenula-projection-but-not-the-ventral-pallidum-to-lateral-habenula-projection-regulates-voluntary-ethanol-consumption
#14
Chandni Sheth, Teri M Furlong, Kristen A Keefe, Sharif A Taha
The lateral habenula (LHb) is an epithalamic brain region implicated in aversive processing via negative modulation of midbrain dopamine (DA) and serotonin (5-HT) systems. Given the role of the LHb in inhibiting DA and 5-HT systems, it is thought to be involved in various psychiatric pathologies, including drug addiction. In support, it has been shown that LHb plays a critical role in cocaine- and ethanol-related behaviors, most likely by mediating drug-induced aversive conditioning. In our previous work, we showed that LHb lesions increased voluntary ethanol consumption and operant ethanol self-administration and blocked yohimbine-induced reinstatement of ethanol self-administration...
April 18, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28431971/influence-of-stress-associated-with-chronic-alcohol-exposure-on-drinking
#15
REVIEW
Howard C Becker
Stress is commonly regarded as an important trigger for relapse and a significant factor that promotes increased motivation to drink in some individuals. However, the relationship between stress and alcohol is complex, likely changing in form during the transition from early moderated alcohol use to more heavy uncontrolled alcohol intake. A growing body of evidence indicates that prolonged excessive alcohol consumption serves as a potent stressor, producing persistent dysregulation of brain reward and stress systems beyond normal homeostatic limits...
April 18, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28431456/substance-and-behavioral-addictions-may-share-a-similar-underlying-process-of-dysregulation
#16
Steve Sussman, Dmitri Rozgonjuk, Regina J J M van den Eijnden
No abstract text is available yet for this article.
April 21, 2017: Addiction
https://www.readbyqxmd.com/read/28429835/levodopa-prevents-the-reinstatement-of-cocaine-self-administration-in-rats-via-potentiation-of-dopamine-release-in-the-medial-prefrontal-cortex
#17
Silvia Antinori, Liana Fattore, Pierluigi Saba, Walter Fratta, Gian Luigi Gessa, Paola Devoto
Dopamine agonists have been proposed as therapeutic tools for cocaine addiction. We have recently demonstrated that indirect dopamine agonists, including levodopa (L-DOPA), markedly increase cocaine-induced dopamine release in the medial prefrontal cortex (mPFC) of rats leading to the suppression of cocaine-seeking behavior. This study was aimed to understand the behavioral and neurochemical effects of L-DOPA on cocaine-taking and cocaine-seeking in rats. After reaching a stable pattern of intravenous cocaine self-administration under a continuous fixed ratio (FR-1) schedule of reinforcement, male rats were treated with L-DOPA at different steps of the self-administration protocol...
April 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28428763/adhd-lifestyles-and-comorbidities-a-call-for-an-holistic-perspective-from-medical-to-societal-intervening-factors
#18
REVIEW
Simon Weissenberger, Radek Ptacek, Martina Klicperova-Baker, Andreja Erman, Katerina Schonova, Jiri Raboch, Michal Goetz
The review examines Attention Deficit Hyperactivity Disorder (ADHD in its Child and Adult form) and its various presentations (Hyperactive Impulsive, Inattentive, and Combined) with a particular focus on environmental (incl. social factors), lifestyles and comorbidities. It is argued that ADHD is best understood in a holistic and interactive context and a vast empirical literature is presented to illustrate the point: Environmental factors include stress in general as well as exposure to toxins (phthalates, bisphenol A)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28428748/resting-state-neuroimaging-and-neuropsychological-findings-in-opioid-use-disorder-during-abstinence-a-review
#19
REVIEW
Hada Fong-Ha Ieong, Zhen Yuan
Dependence to opiates, including illicit heroin and prescription pain killers, and treatment of the opioid use disorder (OUD) have been longstanding problems over the world. Despite intense efforts to scientific investigation and public health care, treatment outcomes have not significantly improved for the past 50 years. One reason behind the continuing use of heroin worldwide despite such efforts is its highly addictive nature. Brain imaging studies over the past two decades have made significant contribution to the understanding of the addictive properties as to be due in part to biological processes, specifically those in the brain structure and function...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28427996/no-evidence-that-environmental-enrichment-during-rearing-protects-against-cocaine-behavioral-effects-but-as-an-intervention-reduces-an-already-established-cocaine-conditioned-place-preference
#20
E Galaj, A Shukur, M Manuszak, K Newman, R Ranaldi
OBJECTIVES: Environmental enrichment (EE) produces differential effects on psychostimulant-related behaviors. Therefore, we investigated whether the timing of EE exposure - during rearing and before cocaine exposure versus in adulthood and after cocaine exposure might be a determining factor. METHODS: In Experiment 1, rats reared with EE or not (non-EE) were conditioned with cocaine (5, 10 or 20mg/kg) in one compartment of a CPP apparatus and saline in the other, and later tested for cocaine CPP...
April 17, 2017: Pharmacology, Biochemistry, and Behavior
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