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https://www.readbyqxmd.com/read/28829051/dopamine-transporter-and-reward-anticipation-in-a-dimensional-perspective-a-multimodal-brain-imaging-study
#1
Manon Dubol, Christian Trichard, Claire Leroy, Anca-Larisa Sandu, Mehdi Rahim, Bernard Granger, Eleni T Tzavara, Laurent Karila, Jean-Luc Martinot, Eric Artiges
Dopamine function and reward processing are highly interrelated and involve common brain regions afferent to the Nucleus Accumbens, within the mesolimbic pathway. While dopamine function and reward system neural activity are impaired in most psychiatric disorders, it is unknown if alterations in the dopamine system underlie variations in reward processing across a continuum encompassing health and these disorders. We explored the relationship between dopamine function and neural activity during reward anticipation in twenty-seven participants including healthy volunteers and psychiatric patients with schizophrenia, depression or cocaine addiction, using functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET) multimodal imaging with a voxel-based statistical approach...
August 22, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28828702/-intoxication-with-psychotropic-drugs
#2
R Bellmann, M Joannidis
Psychotropic drugs are medications that are indicated for treatment of psychiatric disorders. Attempted suicide is the major reason for intoxication but inadvertent overdosing may also occur. Other psychotropic agents are taken because of their stimulating and hallucinogenic effects and many have a high addictive potential. Poisoning is usually due to accidental overdosing. For treatment of benzodiazepine and opioid intoxication, flumazenil and naloxone, respectively, are used as specific antagonists. For intoxication by tricyclic antidepressants, sodium bicarbonate is the treatment of choice...
August 21, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28828322/inequality-in-addiction-and-mental-disorders-in-6818-suicide-attempts-determine-of-positive-contribution-of-determinants-by-decomposition-method
#3
Yousef Veisani, Ali Delpisheh, Ghobad Moradi, Jafar Hassanzadeh, Kourosh Sayehmiri
BACKGROUND: Unpleasant health outcomes are common in deprived communities and have been shown a direct connection between socioeconomic status and wellbeing but, the effect of the socioeconomic status on suicide is currently controversial. This study explored the relationship of the socioeconomic status and addiction and mental disorders in suicide attempts and decomposed inequalities into its determinants to calculating share of contribution to the inequality. METHODS: This cross-sectional study recognized 546 suicide deaths and 6818 attempted suicides from 1 Jan 2010 to 31 Dec 2014 in Ilam Province, West of Iran...
June 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28828257/the-age-of-onset-of-substance-use-is-related-to-the-coping-strategies-to-deal-with-treatment-in-men-with-substance-use-disorder
#4
Maria Del Mar Capella, Ana Adan
BACKGROUND: The age of onset of substance use (OSU) as well as the coping strategies (CS) influence both the development and the course of Substance Use Disorders (SUD). We aim to examine the differences in the CS applied to deal with treatment in men with SUD, considering whether the age of OSU had begun at age 16 or earlier (OSU ≤ 16) or at 17 years or later (OSU ≥ 17), as well as the associations of the CS with clinical variables were studied. METHODS: A total of 122 patients with at least three months of abstinence, 60 with OSU≤16 and 62 with OSU≥17, were evaluated through the Coping Strategies Inventory and clinical assessment tools...
2017: PeerJ
https://www.readbyqxmd.com/read/28828225/quantifying-absolute-glutamate-concentrations-in-nucleus-accumbens-of-prescription-opioid-addicts-by-using-1-h-mrs
#5
Xi-Long Liu, Long Li, Jian-Neng Li, Ji-Hua Tang, Jia-Hui Rong, Bo Liu, Ze-Xuan Hu
INTRODUCTION: The diagnosis of psychoactive substance use disorders has been based primarily on descriptive, symptomatic checklist criteria. In opioid addiction, there are no objective biological indicators specific enough to guide diagnosis, monitor disease status, and evaluate efficacy of therapeutic interventions. Proton magnetic resonance spectroscopy ((1)H MRS) of the brain has potential to identify and quantify biomarkers for the diagnosis of opioid dependence. The purpose of this study was to detect the absolute glutamate concentration in the nucleus accumbens (NAc) of patients with prescription opioid dependence using (1)H MRS, and to analyze its clinical associations...
August 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28827875/addiction-and-technology-plus-%C3%A3-a-change-plus-c-est-la-m%C3%A3%C2%AAme-the-more-things-change-the-more-they-remain-the-same
#6
Alok Sarin, Pratima Murthy, Sanjeev Jain
Excessive use of the internet for gambling, gaming and behavioural addiction, are a focus of contemporary interest. The authors delve into the archives to explore the connections between the growth of various forms of technology, commerce, addictive behaviours and responses of the State, in colonial India. The interplay between the growth of the telegraph network in 19th century India, and its influence on various forms of gambling, including speculation on opium prices, and the rain, as a theme of wager make interesting stories, as do the governmental responses to these...
April 2017: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/28827541/compulsive-methamphetamine-taking-in-the-presence-of-punishment-is-associated-with-increased-oxytocin-expression-in-the-nucleus-accumbens-of-rats
#7
Irina N Krasnova, Maria Carla Gerra, Donna Walther, Subramaniam Jayanthi, Bruce Ladenheim, Michael T McCoy, Christie Brannock, Jean Lud Cadet
Methamphetamine addiction is mimicked in rats that self-administer the drug. However, these self-administration (SA) models do not include adverse consequences that are necessary to reach a diagnosis of addiction in humans. Herein, we measured genome-wide transcriptional consequences of methamphetamine SA and footshocks in the rat brain. We trained rats to self-administer methamphetamine for 20 days. Thereafter, lever-presses for methamphetamine were punished by mild footshocks for 5 days. Response-contingent punishment significantly reduced methamphetamine taking in some rats (shock-sensitive, SS) but not in others (shock-resistant, SR)...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28827130/activation-of-tlr4-stat3-signaling-in-vta-contributes-to-the-acquisition-and-maintenance-of-morphine-induced-conditioned-place-preference
#8
Jia-Xin Chen, Kang-Mei Huang, Meng Liu, Jin-Xiang Jiang, Jian-Peng Liu, Yu-Xiang Zhang, Chen-Yang, Wen-Jun Xin, Xue-Qin Zhang
Morphine, commonly used to relieve the acute or chronic pain, has a high potential for addiction and exerts rewarding effects via a critical role for mesolimbic dopamine system. Studies suggest that addiction-related behavior is highly associated with inflammatory immune response, but the mechanisms are poorly understood. The present study showed that intra-VTA microinjection of TLR4 antagonist LPS-RS prevented the acquisition and maintenance, but not the expression, of morphine-induced CPP in rats. In addition, chronic morphine treatment significantly activated STAT3 on day 6 and 11 in VTA, and bilateral microinjection of STAT3 inhibitor S3I-201 into the VTA suppressed the acquisition and maintenance of morphine-induced CPP in rats...
August 18, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28826994/effectiveness-and-cost-effectiveness-of-nationwide-campaigns-for-awareness-and-case-finding-of-hepatitis-c-targeted-at-people-who-inject-drugs-and-the-general-population-in-the-netherlands
#9
Charles W Helsper, Mart P Janssen, Gerrit A van Essen, Esther A Croes, Clary van der Veen, Ardine G de Wit, Niek J de Wit
BACKGROUND: Hepatitis C virus infection (HCV) is a serious, but underdiagnosed disease that can generally be treated successfully. Therefore, a nationwide HCV awareness campaign was implemented in the Netherlands targeting people who inject drugs (PWID) in addiction care ('PWID intervention') and high-risk groups in the general population ('public intervention'). The objective of this study is to assess the effectiveness and cost-effectiveness of the interventions used in this campaign...
August 18, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28826827/role-of-orexin-type-1-receptors-in-paragiganto-coerulear-modulation-of-opioid-withdrawal-and-tolerance-a-site-specific-focus
#10
REVIEW
S Mohammad Ahmadi-Soleimani, Hossein Azizi, Heinrich S Gompf, Saeed Semnanian
Orexin-A and -B neuropeptides are exclusively synthesized in hypothalamic neurons. These have been implicated to play critical roles in the expression of various behavioral manifestations such as feeding, arousal, wakefulness, drug dependence and tolerance. Orexin ligands activate orexin type-1 and orexin type-2 receptors each displaying a distinct selectivity and distribution profile. Orexinergic neurons innervate various brain structures among which the locus coeruleus (LC) and the lateral paragigantocellularis (LPGi) nuclei are well established as the two key mediators of opiate dependence and tolerance...
August 18, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28826746/the-prevalence-of-food-addiction-in-a-large-sample-of-adolescents-and-its-association-with-addictive-substances
#11
Gabry W Mies, Jorien L Treur, Junilla K Larsen, Jutka Halberstadt, Joëlle A Pasman, Jacqueline M Vink
The prevalence of overweight and obesity is increasing, due to, among other factors, increased availability of highly palatable food (food high in fat, salt and/or sugar). It has been proposed that certain foods and/or eating behaviours may be addictive, to a degree comparable to substances of abuse. The Yale Food Addiction Scale (YFAS) measures 'food addiction' by translating the diagnostic criteria for substance use disorder to eating behaviour. So far, only a few studies have examined the prevalence of food addiction in children with the YFAS for children (YFAS-C)...
August 4, 2017: Appetite
https://www.readbyqxmd.com/read/28822321/neurostimulation-techniques-in-the-treatment-of-cocaine-dependence-a-review-of-the-literature
#12
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
#13
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/28821667/fibroblast-growth-factor-2-in-the-dorsomedial-striatum-is-a-novel-positive-regulator-of-alcohol-consumption
#14
Oren Even-Chen, Yossi Sadot-Sogrin, Ohad Shaham, Segev Barak
Repeated alcohol intake leads to mesostriatal neuroadaptations, resulting in drinking escalation and addiction phenotypes. Fibroblast growth factor 2 (FGF2) has been shown to interact with the mesostriatal dopaminergic system, and has been implicated in the actions of psychostimulants in the brain, and in several psychiatric disorders. Here, we report on a positive regulatory feedback loop of alcohol and FGF2 in rodent models. Specifically, we found that acute alcohol exposure (2.5 g/kg, i.p.) increased the mRNA expression of Fgf2 in the dorsal hippocampus, nucleus accumbens and dorsal striatum...
August 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28820734/characteristics-reasons-behavior-and-knowledge-towards-waterpipe-smoking-in-saudi-arabia
#15
Elluru Venkatesh, Mohammad Yousef Al Jemal, Abdullah Saleh Al Samani
Background The present scenario shows that waterpipe smoking, one of tobacco smoking methods, the practice off which dates back at least 400 year is appealing to the youth. Waterpipe tobacco smoking is frequently linked with nations of the Eastern Mediterranean Region (EMR) comprising Egypt, Kuwait, Lebanon and Syria. The present study shows the socio-demographic characteristics, behavior and knowledge of youth towards waterpipe smoking. Recognizing these features may help emphasize intervention methods. Methods A self-administered questionnaire was used to collect the data about waterpipe smoking comprising sociodemographic, behavior, reasons and knowledge from 230 university students...
August 18, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28820672/association-of-religion-and-cultural-tradition-with-alcohol-use-among-some-tribal-communities-of-arunachal-pradesh-india
#16
Himanshu K Chaturvedi, Ram C Bajpai, Preeti Tiwari
Arunachal Pradesh, a land of high mountains and dense forest, is home to many tribal communities, which comprise two thirds of the state's population. Alcohol is one of the common addictive substances used traditionally among them despite much awareness about its harmful effect on health. The present study is focused on finding the association of religion, ethnicity, and demographic characteristics with alcohol use among some tribal communities in Changlang district of Arunachal Pradesh. A cross-sectional household survey was conducted on substance use in Changlang district of Arunachal Pradesh, India...
August 18, 2017: Journal of Ethnicity in Substance Abuse
https://www.readbyqxmd.com/read/28818835/src-dependent-phosphorylation-of-%C3%AE-opioid-receptor-at-tyr-336-modulates-opiate-withdrawal
#17
Lei Zhang, Cherkaouia Kibaly, Yu-Jun Wang, Chi Xu, Kyu Young Song, Patrick W McGarrah, Horace H Loh, Jing-Gen Liu, Ping-Yee Law
Opiate withdrawal/negative reinforcement has been implicated as one of the mechanisms for the progression from impulsive to compulsive drug use. Increase in the intracellular cAMP level and protein kinase A (PKA) activities within the neurocircuitry of addiction has been a leading hypothesis for opiate addiction. This increase requires the phosphorylation of μ-opioid receptor (MOR) at Tyr(336) by Src after prolonged opiate treatment in vitro Here, we report that the Src-mediated MOR phosphorylation at Tyr(336) is a prerequisite for opiate withdrawal in mice...
August 17, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28818806/differences-in-the-relationship-between-traumatic-experiences-self-esteem-negative-cognition-and-internet-addiction-symptoms-among-north-korean-adolescent-defectors-and-south-korean-adolescents-a-preliminary-study
#18
Subin Park, Yeeun Lee, Jin Yong Jun
North Korean adolescent defectors experience adaptation difficulties along with a wide range of psychosocial problems, but no study has yet examined their Internet addiction symptoms. We compared early traumatic experiences, self-esteem, negative cognition, and Internet addiction symptoms, as well as the relationships between these variables, between North Korean adolescent defectors and South Korean adolescents. Fifty-six North Korean adolescent defectors and 112 age- and sex- matched South Korean adolescents participated...
July 31, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28818639/addictive-behaviors-and-healthcare-renunciation-for-economic-reasons-in-a-french-population-based-sample
#19
Stéphanie Baggio, Marc Dupuis, Jean-Baptiste Richard, François Beck
BACKGROUND: Healthcare renunciation for economic reasons is a major health concern, but it has been scarcely investigated among drug users, even if drug users constitute a vulnerable population in need of medical care. This study investigated associations of healthcare renunciation for economic reasons and addictive behaviors (alcohol, tobacco, cannabis, illicit drug use, and gambling) in a population-based sample of adults living in France, a country with universal health coverage. METHODS: Data were collected using the 2014 Health Barometer, a French cross-sectional survey conducted among a random representative sample of the general population aged 18-64 (n=12,852)...
August 14, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28818561/the-rise-and-fall-of-impulse-control-behavior-disorders
#20
Giovanni Cossu, Roberta Rinaldi, Carlo Colosimo
INTRODUCTION: Impulse control disorders (ICDs) are psychiatric disorders characterized by the failure to resist an impulse or by the temptation to perform an act that is harmful to oneself or to others. METHODS: ICDs, including pathological gambling, hypersexuality, compulsive eating and shopping, can occur as a complication of Parkinson's disease (PD) together with other behavioral disorders, including dopamine dysregulation syndrome. This review is based on a literature search updated to May 2017, focusing on the epidemiology, clinical features, and therapeutic options of ICDs associated with PD...
August 1, 2017: Parkinsonism & related Disorders
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