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https://www.readbyqxmd.com/read/28543418/reconciling-patient-safety-and-epistemic-humility-an-ethical-use-of-opioid-treatment-plans
#1
Anita Ho
In this issue of the Hastings Center Report, Joshua Rager and Peter Schwartz suggest using opioid treatment agreements as public health monitoring tools to inform patients about "the requirements entailed by undergoing opioid therapy," rather than as contractual agreements to alter patients' individual behavior or to benefit them directly. Because Rager and Schwartz's argument presents suspected OTA violations as a justification to stop providing opioids yet does not highlight the broader epistemic and systemic context within which clinicians prescribe these medications, their proposal may perpetuate a climate of distrust and stigmatization without correcting systemic factors that may have placed patients and others at risk in the first place...
May 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28539894/modulation-of-brain-activity-with-noninvasive-transcranial-direct-current-stimulation-tdcs-clinical-applications-and-safety-concerns
#2
REVIEW
Haichao Zhao, Lei Qiao, Dongqiong Fan, Shuyue Zhang, Ofir Turel, Yonghui Li, Jun Li, Gui Xue, Antao Chen, Qinghua He
Transcranial direct current stimulation (tDCS) is a widely-used tool to induce neuroplasticity and modulate cortical function by applying weak direct current over the scalp. In this review, we first introduce the underlying mechanism of action, the brief history from discovery to clinical scientific research, electrode positioning and montages, and parameter setup of tDCS. Then, we review tDCS application in clinical samples including people with drug addiction, major depression disorder, Alzheimer's disease, as well as in children...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28537967/nortriptyline-enhances-morphine-conditioned-place-preference-in-neuropathic-rats-role-of-the-central-noradrenergic-system
#3
Wenli Mi, Shuxing Wang, Zerong You, Grewo Lim, Michael F McCabe, Hyangin Kim, Lucy Chen, Jianren Mao
BACKGROUND: Combination drug therapy is commonly used to treat chronic pain conditions such as neuropathic pain, and antidepressant is often used together with opioid analgesics. While rewarding is an intrinsic property of opioid analgesics, it is unknown whether the use of an antidepressant would influence opioid reward, which may contribute to opioid addiction. In this study, we examined whether nortriptyline (a tricyclic antidepressant and a first-line medication for neuropathic pain) would enhance the morphine rewarding property in both naive and chronic constriction sciatic nerve injury (CCI) rats...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28536692/wistar-kyoto-female-rats-are-more-susceptible-to-develop-sugar-binging-a-comparison-with-wistar-rats
#4
Helena Papacostas-Quintanilla, Víctor Manuel Ortiz-Ortega, Carolina López-Rubalcava
The hedonic component of the feeding behavior involves the mesolimbic reward system and resembles addictions. Nowadays, the excessive consumption of sucrose is considered addictive. The Wistar-Kyoto (WKY) rat strain is prone to develop anxiety and addiction-like behavior; nevertheless, a lack of information regarding their vulnerability to develop sugar binging-like behavior (SBLB) and how it affects the reward system persist. Therefore, the first aim of the present study was to compare the different predisposition of two rat strains, Wistar (W) and WKY to develop the SBLB in female and male rats...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28536051/altered-thalamo-cortical-resting-state-functional-connectivity-in-smokers
#5
Chaoyan Wang, Jie Bai, Caihong Wang, Karen M von Deneen, Kai Yuan, Jingliang Cheng
The thalamus has widespread connections with the prefrontal cortex (PFC) and modulates communication between the striatum and PFC, which is crucial to the neural mechanisms of smoking. However, relatively few studies focused on the thalamic resting state functional connectivity (RSFC) patterns and their association with smoking behaviors in smokers. 24 young male smokers and 24 non-smokers were enrolled in our study. Fagerström Test for Nicotine Dependence (FTND) was used to assess the nicotine dependence level...
May 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28534263/n-acetylaspartylglutamate-inhibits-heroin-self-administration-and-heroin-seeking-behaviors-induced-by-cue-or-priming-in-rats
#6
Huaqiang Zhu, Miaojun Lai, Weisheng Chen, Disen Mei, Fuqiang Zhang, Huifeng Liu, Wenhua Zhou
Activation of presynaptic group II metabotropic glutamate receptors (mGluR2/3) inhibits drug reward and drug-seeking behavior, but the role of N-acetylaspartylglutamate (NAAG), an agonist of endogenous mGluR2/3, in heroin reward and heroin-seeking behavior remained unclear. Here, we aimed to explore the effects of exogenous NAAG on heroin self-administration and heroin-seeking behavior. First, rats were trained to self-administer heroin under a fixed ratio 1 (FR1) schedule for 10 days, then received NAAG (50 or 100 μg/10 μL in each nostril) in the absence or presence of LY341495 (1 mg/kg, i...
May 22, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28533660/genes-emotions-and-gut-microbiota-the-next-frontier-for-the-gastroenterologist
#7
REVIEW
Arturo Panduro, Ingrid Rivera-Iñiguez, Maricruz Sepulveda-Villegas, Sonia Roman
Most medical specialties including the field of gastroenterology are mainly aimed at treating diseases rather than preventing them. Genomic medicine studies the health/disease process based on the interaction of the human genes with the environment. The gastrointestinal (GI) system is an ideal model to analyze the interaction between our genes, emotions and the gut microbiota. Based on the current knowledge, this mini-review aims to provide an integrated synopsis of this interaction to achieve a better understanding of the GI disorders related to bad eating habits and stress-related disease...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28533147/diversities-of-behavioral-traits-and-neuropsychological-function-in-different-substance-addiction
#8
Hui-Yi Wang, Tzong-Shi Wang, Yi-Chyan Chen
OBJECTIVE: There are various temperaments and personality characters that modulate the development of substance addiction. The pharmacological properties of substances would alter the homeostasis of brain function and influence the neuropsychological performance through different neurotransmissions which then facilitate diverse emotional and behavioral responses. Our goal is to assess the interaction between personality characteristics, neuropsychological performances and Stroop interference in alcoholics, heroin and amphetamine dependent persons...
May 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28531770/treatment-consumption-and-treatment-re-enrollment-in-ghb-dependent-patients-in-the-netherlands
#9
Martijn S van Noorden, Ton Mol, Jeroen Wisselink, Wil Kuijpers, Boukje A G Dijkstra
BACKGROUND: The objective of this study was to assess treatment consumption and re-enrollment in treatment in patients with gamma-hydroxybutyrate (GHB)-dependence in Dutch Addiction Treatment Centers (ATCs) in comparison with other addictions. METHODS: A cohort-study using nationwide administrative data from regular Dutch ATCs associated with the Dutch National Alcohol and Drugs Information System (LADIS), covering an estimated 95% of ATCs. We selected in- and out-patients with alcohol, drug and/or behavioral addictions with a first treatment episode in 2008-2011 and consecutive treatments until 2013 (n=71,679)...
May 16, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28531297/mechanisms-of-kappa-opioid-receptor-potentiation-of-dopamine-d2-receptor-function-in-quinpirole-induced-locomotor-sensitization-in-rats
#10
Angélica P Escobar, Marcela P González, Rodrigo C Meza, Verónica Noches, Pablo Henny, Katia Gysling, Rodrigo A España, José A Fuentealba, María E Andrés
Background: Increased locomotor activity in response to the same stimulus is an index of behavioral sensitization observed in preclinical models of drug addiction and compulsive behaviors. Repeated administration of Quinpirole (QNP), a D2/D3 dopamine agonist, induces locomotor sensitization. This effect is potentiated and accelerated by co-administration of U69593, a kappa opioid receptor agonist (KOR). The mechanism underlying KOR potentiation of QNP-induced locomotor sensitization remains to be elucidated...
May 22, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28531265/utility-of-nonhuman-primates-in-substance-use-disorders-research
#11
Matthew L Banks, Paul W Czoty, Sidney S Negus
Substance use disorders (i.e., drug addiction) constitute a global and insidious public health issue. Preclinical biomedical research has been invaluable in elucidating the environmental, biological, and pharmacological determinants of drug abuse and in the process of developing innovative pharmacological and behavioral treatment strategies. For more than 70 years, nonhuman primates have been utilized as research subjects in biomedical research related to drug addiction. There are already several excellent published reviews highlighting species differences in both pharmacodynamics and pharmacokinetics between rodents and nonhuman primates in preclinical substance abuse research...
May 20, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28529494/sensation-seeking-and-online-gaming-addiction-in-adolescents-a-moderated-mediation-model-of-positive-affective-associations-and-impulsivity
#12
Jianping Hu, Shuangju Zhen, Chengfu Yu, Qiuyan Zhang, Wei Zhang
Based on the Dual Systems Model (Somerville et al., 2010; Steinberg, 2010a) and the biosocial-affect model (Romer and Hennessy, 2007) of adolescent sensation seeking and problem behaviors, the present study examined how (affective associations with online games as a mediator) and when (impulsivity as a moderator) did sensation seeking influence online gaming addiction in adolescence. A total of 375 Chinese male adolescents (mean age = 16.02 years, SD = 0.85) from southern China completed anonymous questionnaires regarding sensation seeking, positive affective associations with online games, impulsivity, and online gaming addiction...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28528203/changes-in-resting-state-functional-brain-connectivity-and-withdrawal-symptoms-are-associated-with-acute-electronic-cigarette-use
#13
Andréa L Hobkirk, Travis T Nichols, Jonathan Foulds, Jessica M Yingst, Susan Veldheer, Shari Hrabovsky, John Richie, Thomas Eissenberg, Stephen J Wilson
Resting state functional brain connectivity (rsFC) may be an important neuromarker of smoking behavior. Prior research has shown, among cigarette smokers, that nicotine administration alters rsFC within frontal and parietal cortices involved in executive control, as well as striatal regions that drive reward processing. These changes in rsFC have been associated with reductions in withdrawal symptom severity. We currently have a limited understanding of how rsFC is affected by the use of electronic cigarettes (ecigs), an increasingly popular class of products, the members of which deliver nicotine with varying effectiveness...
May 17, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28527717/inhibition-of-the-lateral-habenular-camk%C3%A2-abolishes-naloxone-precipitated-conditioned-place-aversion-in-morphine-dependent-mice
#14
Jing Wang, Min Li, Ping Wang, Yunhong Zha, Zhi He, Zicheng Li
Addictive substances mediate positive and negative states promoting compulsive drug use. However, substrates for aversive effects of drugs are not fully understood. We found that inactivation of the lateral habenula (LHb) by microinjection of tetrodotoxin (TTX) abolished naloxone-precipitated conditioned place aversion (CPA) in morphine-dependent mice. We also found that lateral habenular administration of KN-62, a specific inhibitor for calcium/calmodulin dependent protein kinase II (CaMKII), abolished naloxone-precipitated CPA in morphine-dependent mice...
May 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28523735/variability-in-prescription-opioid-intake-and-reinforcement-amongst-129-substrains
#15
Susan M Jimenez, Aiden F Healy, Michal A Coelho, Chelsea N Brown, Tod E Kippin, Karen K Szumlinski
Opioid abuse in the United States has reached epidemic proportions, with treatment admissions and deaths associated with prescription opioid abuse quadrupling over the past 10 years. Although genetics are theorized to contribute substantially to inter-individual variability in the development, severity, and treatment outcomes of opioid abuse/addiction, little direct preclinical study has focused on the behavioral genetics of prescription opioid reinforcement and drug-taking. Herein, we employed different 129 substrains of mice currently available from The Jackson Laboratory (129S1/SvlmJ, 129X1/SvJ, 129S4/SvJaeJ and 129P3/J) as a model system of genetic variation and assayed mice for oral opioid intake and reinforcement, as well as behavioral and somatic signs of dependence...
May 19, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28523287/modeling-risky-decision-making-in-nonhuman-animals-shared-core-features
#16
Sarah R Heilbronner
Understanding the neural mechanisms of risky decision-making is critical to developing appropriate treatments for psychiatric disorders, problem gambling, and addiction to drugs of abuse. Probing neurobiological mechanisms requires the use of nonhuman animal models (particularly rhesus macaques, rats, and mice). However, there is considerable variation across species in risk preferences. Nevertheless, there are shared core features of risky decision-making present across species. As demonstrated with a wide variety of behavioral paradigms, modulators of risk preference observed in humans are readily replicated in model species...
August 2017: Current Opinion in Behavioral Sciences
https://www.readbyqxmd.com/read/28523226/interpersonal-early-life-trauma-alters-amygdala-connectivity-and-sustained-attention-performance
#17
Francesca C Fortenbaugh, Vincent Corbo, Victoria Poole, Regina McGlinchey, William Milberg, David Salat, Joseph DeGutis, Michael Esterman
INTRODUCTION: Interpersonal early life trauma (I-ELT) is associated with a myriad of functional impairments in adulthood, increased risk of drug addiction, and neuropsychiatric disorders. While deficits in emotional regulation and amygdala functioning are well characterized, deficits in general cognitive functioning have also been documented. However, the neural underpinnings of cognitive dysfunction in adults with a history of I-ELT and the potential relationship between amygdala-based functional connectivity and behavioral performance are currently poorly understood...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28521732/the-berlin-inventory-of-gambling-behavior-screening-big-s-validation-using-a-clinical-sample
#18
Martin Wejbera, Kai W Müller, Jan Becker, Manfred E Beutel
BACKGROUND: Published diagnostic questionnaires for gambling disorder in German are either based on DSM-III criteria or focus on aspects other than life time prevalence. This study was designed to assess the usability of the DSM-IV criteria based Berlin Inventory of Gambling Behavior Screening tool in a clinical sample and adapt it to DSM-5 criteria. METHODS: In a sample of 432 patients presenting for behavioral addiction assessment at the University Medical Center Mainz, we checked the screening tool's results against clinical diagnosis and compared a subsample of n=300 clinically diagnosed gambling disorder patients with a comparison group of n=132...
May 18, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28521241/cognitive-avoidance-and-aversive-cues-related-to-tobacco-in-male-smokers
#19
Ji Sun Hong, Sun Mi Kim, Hye Yeon Jung, Kyoung Doo Kang, Kyung Joon Min, Doug Hyun Han
BACKGROUND: Treatment using aversive conditioning has been suggested for smoking cessation. The efficacy of this method is thought to be associated with cognitive avoidance. We compare differences in avoidance traits and patterns of associated brain activation in response to cues that induce cravings versus aversion between smokers and non-smokers. METHODS: Fifteen smokers and fifteen non-smokers completed cue reactivity tasks while undergoing functional magnetic resonance imaging (fMRI) to examine brain responses to craving-inducing cues (Cr) and aversion-inducing cues (Av)...
May 11, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28520985/warning-statements-and-safety-practices-among-manufacturers-and-distributors-of-electronic-cigarette-liquids-in-the-united-states
#20
Pebbles Fagan, Pallav Pokhrel, Thaddeus A Herzog, Mignonne C Guy, Kari-Lyn K Sakuma, Dennis R Trinidad, Kevin Cassel, Dorothy Jorgensen, Tania Lynch, Jamie Q Felicitas-Perkins, Sherilyn Palafox, Faith Hamamura, Sarah Maloney, Kaylah Degree, Kymberle Sterling, Eric Moolchan, Mark S Clanton, Thomas Eissenberg
Introduction.: Prior to the Food and Drug Administration's (FDA) regulation of electronic cigarettes and warning statements related to nicotine addiction, there was no critical examination of manufacturer/distributor voluntary practices that could potentially inform FDA actions aimed to protect consumers. This study examined the content of warning statements and safety characteristics of electronic cigarette liquid bottles using a national sample. Methods.: Research staff randomly selected four electronic cigarette liquid manufacturers/distributors from four U...
May 18, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
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