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https://www.readbyqxmd.com/read/28546648/differences-in-delay-but-not-probability-discounting-in-current-smokers-e-cigarette-users-and-never-smokers
#1
Wojciech Białaszek, Przemysław Marcowski, David J Cox
Steeper delay discounting in substance abuse populations, compared to non-abusing populations, has been well-established in prior studies. Despite the growing interest in e-cigarettes as a novel and relatively understudied form of nicotine consumption, relatively little is known as to how e-cigarette users discount rewards compared to traditional cigarette smokers and never smokers. In the present study, we measured delay and probability discounting rates, as well as perceived risk inherent to a delayed reward, in current traditional cigarette smokers, e-cigarette users, and never smokers...
2017: Psychological Record
https://www.readbyqxmd.com/read/28498868/a-drosophila-model-for-developmental-nicotine-exposure
#2
Norma Andrea Velazquez-Ulloa
Despite the known health risks of tobacco smoking, many people including pregnant women continue smoking. The effects of developmental nicotine exposure are known, but the underlying mechanisms are not well understood. Drosophila melanogaster is a model organism that can be used for uncovering genetic and molecular mechanisms for drugs of abuse. Here I show that Drosophila can be a model to elucidate the mechanisms for nicotine's effects on a developing organism. Drosophila reared on nicotine food display developmental and behavioral effects similar to those in mammals including decreased survival and weight, increased developmental time, and decreased sensitivity to acute nicotine and ethanol...
2017: PloS One
https://www.readbyqxmd.com/read/28492955/the-association-of-self-concept-with-substance-abuse-and-problematic-use-of-video-games-in-university-students-a-structural-equation-model
#3
Ramón Chacón Cuberos, Félix Zurita Ortega, Manuel Castro Sánchez, Tamara Espejo Garcés, Asunción Martínez Martínez, Gerardo Ruiz-Rico Ruiz
This study aims to define and contrast an explanatory model of consumption of alcohol, tobacco consumption, and problematic use of video games based on self-concept and its dimensions in a sample of university students. The research was conducted with a sample of 490 students from the province of Granada (Spain), aged between 20 and 29 years (M = 22.80 ± 3.63), with a homogeneous distribution by gender. The instruments used were the Self-concept Form-5 Questionnaire (García & Musitu, 1999), the Alcohol Use Disorders Identification Test (Saunders, Aasland, Babor, De la Fuente, & Grant, 1993), the Fagerström Test for Nicotine Dependence (Heatherton, Kozlowski, Frecker, & Fagerström, 1991) and the Questionnaire for Experiences Related to Video Games (Chamarro et al...
April 12, 2017: Adicciones
https://www.readbyqxmd.com/read/28487076/evidence-for-differential-opioid-use-disorder-in-schizophrenia-in-an-addiction-treatment-population
#4
Joshua Chiappelli, Shuo Chen, Ann Hackman, L Elliot Hong
Although people diagnosed with schizophrenia are known to have elevated risks of abuse and dependence for nicotine, alcohol, cocaine, and cannabis, it is less clear if schizophrenia is associated with higher rates of opioid use disorders compared to either the general population or individuals with other major psychiatric disorders. Here we examine a large publicly available database from substance abuse treatment centers to compare how frequently patients with schizophrenia report problems with heroin or other opioid drugs compared to other major drugs of abuse...
May 6, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28486710/association-between-reward-reactivity-and-drug-use-severity-is-substance-dependent-preliminary-evidence-from-the-human-connectome-project
#5
Alyssa L Peechatka, Amy C Janes
Introduction: Blunted nucleus accumbens (NAc) reactivity to reward is common across drug users. One theory is that individuals abuse substances due to this reward deficit. However, whether there is a relationship between the amount an individual uses and the severity of NAc dysfunction is unclear. It also is possible that such a relationship is substance specific, as nicotine transiently increases reward system sensitivity while alcohol, another commonly used substance, does not. As smokers may use nicotine to bolster NAc reward function, we hypothesize that NAc reactivity to reward will be related to volume of cigarette use, but not volume of alcohol use...
June 1, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28460123/use-of-electronic-cigarettes-leads-to-significant-beta2-nicotinic-acetylcholine-receptor-occupancy-evidence-from-a-pet-imaging-study
#6
Stephen R Baldassarri, Ansel T Hillmer, Jon Mikael Anderson, Peter Jatlow, Nabeel Nabulsi, David Labaree, Kelly P Cosgrove, Stephanie S O'Malley, Thomas Eissenberg, Suchitra Krishnan-Sarin, Irina Esterlis
Background: Electronic cigarettes (ECs) can influence nicotine addiction by delivering aerosolized nicotine. We investigated if nicotine from ECs is delivered to the brain β2*-nicotinic-acetylcholine receptors (β2*-nAChR) and how this relates to the behavioral effects and nicotine delivery from cigarettes. Methods: Seven nicotine users participated in positron emission tomography (PET) studies with (-)-[18F]Flubatine before and after nicotine challenge with 0, 8 mg/ml, and 36 mg/ml nicotine in a 3...
April 29, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28428763/adhd-lifestyles-and-comorbidities-a-call-for-an-holistic-perspective-from-medical-to-societal-intervening-factors
#7
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/28412920/neuropsychiatric-and-general-interactions-of-natural-and-synthetic-cannabinoids-with-drugs-of-abuse-and-medicines
#8
Ana Lucia Arellano, Esther Papaseit, Anna Romaguera, Marta Torrens, Magi Farré
Cannabis is the most widely used illicit drug. The two most important natural cannabinoids are delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). The THC content of cannabis has been increasing during the last years and recently appeared in the market a series of synthetic cannabinoids with potent agonist activity. Recreational users frequently combine cannabis with other drugs of abuse as alcohol, amphetamines and derivatives, nicotine and cocaine. In addition these subjects can be taking medicines for acute and chronic medical conditions...
April 13, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28406266/the-3-year-course-of-multiple-substance-use-disorders-in-the-united-states-a-national-longitudinal-study
#9
Sean Esteban McCabe, Brady T West
OBJECTIVE: To examine the 3-year course of multiple co-occurring substance use disorders (SUDs) based on longitudinal survey data from a large, nationally representative sample. METHODS: National estimates of the prevalence of DSM-IV SUDs were derived by analyzing data from structured, face-to-face diagnostic interviews as part of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC), which collected data from a large, nationally representative sample of noninstitutionalized US adults at 2 waves (2001-2002 and 2004-2005; N = 34,653)...
April 11, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28391109/attention-deficit-hyperactivity-disorder-and-substance-abuse-an-investigation-in-young-austrian-males
#10
Anita Riegler, Sabine Völkl-Kernstock, Otto Lesch, Henriette Walter, Katrin Skala
BACKGROUND: Many studies have found an association between Substance Use Disorders (SUDs) and Attention Deficit Hyperactivity Disorder (ADHD) in children, adolescents and adults. We intended to determine whether substance abuse and SUDs are associated with former and current ADHD symptomatology in a non-clinical sample of 17 and 18 year old males. METHOD: A representative sample of 3280 young men (6.8% of all males born in Austria in the respective year) was investigated during the examination for military service...
April 4, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28382542/kk-92a-a-novel-gabab-receptor-positive-allosteric-modulator-attenuates-nicotine-self-administration-and-cue-induced-nicotine-seeking-in-rats
#11
Xia Li, Emmanuel Sturchler, Katarzyna Kaczanowska, Michael Cameron, M G Finn, Patrick Griffin, Patricia McDonald, Athina Markou
RATIONALE: GABAB receptors (GABABR) play a critical role in GABAergic neurotransmission in the brain and are thought to be one of the most promising targets for the treatment of drug addiction. GABABR positive allosteric modulators (PAMs) have shown promise as potential anti-addictive therapies, as they lack the sedative and muscle relaxant properties of full GABAB receptor agonists such as baclofen. OBJECTIVES: The present study was aimed at developing novel, selective, and potent GABABR PAMs with efficacy on abuse-related effects of nicotine...
May 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28348540/new-empirical-evidence-on-the-validity-and-the-reliability-of-the-early-life-stress-questionnaire-in-a-polish-sample
#12
Andrzej Sokołowski, Wojciech Ł Dragan
Background: The Early Life Stress Questionnaire (ELSQ) is widely used to estimate the prevalence of negative events during childhood, including emotional, physical, verbal, sexual abuse, negligence, severe conflicts, separation, parental divorce, substance abuse, poverty, and so forth. Objective: This study presents the psychometric properties of the Polish adaptation of the ELSQ. It also verifies if early life stress (ELS) is a good predictor of psychopathology symptoms during adulthood. Materials and Methods: We analyzed data from two samples...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28347687/effects-of-chronic-inhalation-of-electronic-cigarettes-containing-nicotine-on-glial-glutamate-transporters-and-%C3%AE-7-nicotinic-acetylcholine-receptor-in-female-cd-1-mice
#13
Fawaz Alasmari, Laura E Crotty Alexander, Jessica A Nelson, Isaac T Schiefer, Ellen Breen, Christopher A Drummond, Youssef Sari
Alteration in glutamate neurotransmission has been found to mediate the development of drug dependence, including nicotine. We and others, through using western blotting, have reported that exposure to drugs of abuse reduced the expression of glutamate transporter-1 (GLT-1) as well as cystine/glutamate antiporter (xCT), which consequently increased extracellular glutamate concentrations in the mesocorticolimbic area. However, our previous studies did not reveal any changes in glutamate/aspartate transporter (GLAST) following exposure to drugs of abuse...
March 27, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28340022/nicotine-content-and-physical-properties-of-large-cigars-and-cigarillos-in-the-united-states
#14
Bartosz Koszowski, Meridith Hill Thanner, Wallace B Pickworth, Kenneth M Taylor, Lynn C Hull, Megan J Schroeder
Introduction: Cigars are combusted tobacco products consisting of filler, binder, and wrapper, which are derived from tobacco. Despite the abundance of literature on the composition of traditional combusted cigarettes, research is limited on the physical and chemical properties of cigars. Therefore, research on cigar properties may be useful to better understand their health impact. Methods: In this study, twenty large cigar and cigarillo products were characterized for physical properties (ie, weight, length, and diameter), filler nicotine content, and tobacco pH...
March 4, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28339662/hiv-1-proteins-influence-novelty-seeking-behavior-and-alter-region-specific-transcriptional-responses-to-chronic-nicotine-treatment-in-hiv-1tg-rats
#15
Zhongli Yang, Tanseli Nesil, Taylor Wingo, Sulie L Chang, Ming D Li
Introduction: Clinical studies suggest that HIV-1-infected patients are more likely to use or abuse addictive drugs than is the general population. We hypothesized that HIV-1 proteins impact novelty-seeking behavior and enhance the transcriptional response to nicotine in genes implicated in both novelty-seeking behavior and drug addiction. Methods: We assessed the effects of HIV-1 proteins on novelty-seeking behavior by comparing baseline activity differences of HIV-1Tg and F344 control rats in the open-field test...
February 17, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28336465/smoking-and-the-risk-of-type-2-diabetes
#16
REVIEW
Judith Maddatu, Emily Anderson-Baucum, Carmella Evans-Molina
Despite accumulating evidence demonstrating strong epidemiologic and mechanistic associations between cigarette smoking, hyperglycemia, and the development of type 2 diabetes, tobacco abuse has not been uniformly recognized as a modifiable risk factor in diabetes prevention or screening strategies. In this review, we highlight population-based studies that have linked cigarette smoking with an increased risk of type 2 diabetes and summarize clinical and preclinical studies offering insight into mechanisms through which cigarette smoking and nicotine exposure impact body composition, insulin sensitivity, and pancreatic β cell function...
June 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28332590/nicotine-enhances-alcohol-intake-and-dopaminergic-responses-through-%C3%AE-2-and-%C3%AE-4-nicotinic-acetylcholine-receptors
#17
Stefania Tolu, Fabio Marti, Carole Morel, Carole Perrier, Nicolas Torquet, Stephanie Pons, Renaud de Beaurepaire, Philippe Faure
Alcohol and nicotine are the most widely co-abused drugs. Both modify the activity of dopaminergic (DA) neurons of the Ventral Tegmental Area (VTA) and lead to an increase in DA release in the Nucleus Accumbens, thereby affecting the reward system. Evidences support the hypothesis that distinct nicotinic acetylcholine receptors (nAChRs), the molecular target of acetylcholine (ACh) and exogenous nicotine, are also in addition implicated in the response to alcohol. The precise molecular and neuronal substrates of this interaction are however not well understood...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28329660/predictors-of-tanning-dependence-in-white-non-hispanic-females-and-males
#18
Brenda Cartmel, Susan T Mayne, Allen E Bale, Joel Gelernter, Andrew DeWan, David J Leffell, Sherry Pagoto, Peter Spain, Leah M Ferrucci
Growing evidence suggests some individuals may exhibit dependence to ultraviolet light, a known carcinogen; however, few studies have investigated predictors of tanning dependence (TD).A sub-set of early-onset basal cell carcinoma case-control study participants completed an online survey. The modified-Cut down, Annoyed, Guilty, Eye-opener (mCAGE) and a questionnaire based on the addiction criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (mDSM-IV-TR) were used to classify participants having'Symptoms of TD' if they met criteria for TD on both questionnaires, 'Tendency for TD' if met criteria on only one questionnaire, or 'Not TD'...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28296947/the-dual-orexin-receptor-antagonist-tcs1102-does-not-affect-reinstatement-of-nicotine-seeking
#19
Shaun Yon-Seng Khoo, Gavan P McNally, Kelly J Clemens
The orexin/hypocretin system is important for appetitive motivation towards multiple drugs of abuse, including nicotine. Both OX1 and OX2 receptors individually have been shown to influence nicotine self-administration and reinstatement. Due to the increasing clinical use of dual orexin receptor antagonists in the treatment of disorders such as insomnia, we examined whether a dual orexin receptor antagonist may also be effective in reducing nicotine seeking. We tested the effect of intracerebroventricular (i...
2017: PloS One
https://www.readbyqxmd.com/read/28287404/mutations-in-%C3%AE-secretase-subunit-encoding-psenen-underlie-dowling-degos-disease-associated-with-acne-inversa
#20
Damian J Ralser, F Buket Ü Basmanav, Aylar Tafazzoli, Jade Wititsuwannakul, Sarah Delker, Sumita Danda, Holger Thiele, Sabrina Wolf, Michélle Busch, Susanne A Pulimood, Janine Altmüller, Peter Nürnberg, Didier Lacombe, Uwe Hillen, Jörg Wenzel, Jorge Frank, Benjamin Odermatt, Regina C Betz
Dowling-Degos disease (DDD) is an autosomal-dominant disorder of skin pigmentation associated with mutations in keratin 5 (KRT5), protein O-fucosyltransferase 1 (POFUT1), or protein O-glucosyltransferase 1 (POGLUT1). Here, we have identified 6 heterozygous truncating mutations in PSENEN, encoding presenilin enhancer protein 2, in 6 unrelated patients and families with DDD in whom mutations in KRT5, POFUT1, and POGLUT1 have been excluded. Further examination revealed that the histopathologic feature of follicular hyperkeratosis distinguished these 6 patients from previously studied individuals with DDD...
April 3, 2017: Journal of Clinical Investigation
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