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Drug and Alcohol Dependence

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https://www.readbyqxmd.com/read/28641132/heritability-of-lifetime-ecstasy-use
#1
Karin J H Verweij, Jorien L Treur, Annabel Vreeker, Tibor M Brunt, Gonneke Willemsen, Dorret I Boomsma, Jacqueline M Vink
BACKGROUND: Ecstasy is a widely used psychoactive drug that users often take because they experience positive effects such as increased euphoria, sociability, elevated mood, and heightened sensations. Ecstasy use is not harmless and several immediate and long term side effects have been identified. Lifetime ecstasy use is likely to be partly influenced by genetic factors, but no twin study has determined the heritability. Here, we apply a classical twin design to a large sample of twins and siblings to estimate the heritability of lifetime ecstasy use...
June 15, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28624747/who-is-most-affected-by-prenatal-alcohol-exposure-boys-or-girls
#2
Philip A May, Barbara Tabachnick, Julie M Hasken, Anna-Susan Marais, Marlene M de Vries, Ronel Barnard, Belinda Joubert, Marise Cloete, Isobel Botha, Wendy O Kalberg, David Buckley, Zachary R Burroughs, Heidre Bezuidenhout, Luther K Robinson, Melanie A Manning, Colleen M Adnams, Soraya Seedat, Charles D H Parry, H Eugene Hoyme
OBJECTIVE: To examine outcomes among boys and girls that are associated with prenatal alcohol exposure. METHODS: Boys and girls with fetal alcohol spectrum disorders (FASD) and randomly-selected controls were compared on a variety of physical and neurobehavioral traits. RESULTS: Sex ratios indicated that heavy maternal binge drinking may have significantly diminished viability to birth and survival of boys postpartum more than girls by age seven...
June 15, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28624602/the-mediating-effects-of-depressive-symptoms-and-sleep-quality-on-the-relationship-between-the-non-medical-use-of-prescription-drugs-and-suicidal-behaviors-among-chinese-adolescents
#3
Juan Wang, Yan Xu, Lan Guo, Jian-Xiong Deng, Jing-Hui Huang, Guo-Liang Huang, Xue Gao, Hong Wu, Si-Yuan Pan, Ci-Yong Lu
BACKGROUND: The nature of the relationship between the non-medical use of prescription drugs (NMUPD) and suicide has not been clearly elucidated. Some studies have suggested that the relationship between substance use and suicidal ideation may be spurious and could be explained by other variables. METHODS: A school-based cross-sectional study was performed in Guangzhou. A total of 5853 students completed questionnaires and were included in the study. NMUPD, alcohol use, illicit drug use, depressive symptoms, sleep quality, and suicidal behaviors were assessed...
June 15, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28641129/moderate-and-vigorous-physical-activity-patterns-among-marijuana-users-results-from-the-2007-2014-national-health-and-nutrition-examination-surveys
#4
Denise C Vidot, Jordan B Bispo, WayWay M Hlaing, Guillermo Prado, Sarah E Messiah
The relationship between marijuana use and recreational physical activity has yet to be explored in the United States. Our aim was to examine this relationship in a population-based sample of 20-to-59-year olds (N=12,618) using 2007-2014 National Health and Nutrition Examination Surveys. Marijuana use was categorized as never (reference group), past (previously but not within the last 30-days), and current (>1day in the last 30-days) use. Current users were further categorized based on frequency of use (light, moderate, and heavy users)...
June 13, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28641128/expectancy-of-impairment-attenuates-marijuana-induced-risk-taking
#5
Rachel L Gunn, Linda Skalski, Jane Metrik
BACKGROUND: Marijuana use has been associated with increased risk-taking and impulsive behavior. While pharmacologic effects of marijuana can lead to inhibitory impairment, expectancy of potential impairment may result in compensatory behavioral response by decreasing impulsive decisions and risky behaviors. With the increases in marijuana use and related problems, a better understanding of the individual characteristics associated with marijuana intoxication and risky behavior is needed...
June 13, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28618284/differences-in-biomarkers-of-crack-cocaine-adolescent-users-before-after-abstinence
#6
Thiago Gatti Pianca, Ronaldo Lopes Rosa, Keila Maria Mendes Ceresér, Bianca Wollenhaupt de Aguiar, Rafaela Carvalho de Abrahão, Patrícia Mafra Lazzari, Flávio Kapczinski, Flávio Pechansky, Luis Augusto Rohde, Cláudia Maciel Szobot
AIMS: To measure the variation in Brain-Derived Neurotrophic Factor (BDNF), Thiobarbituric Acid Reactive Substances (TBARS) and interleukin (IL) levels in crack-cocaine dependent adolescents after 21days of abstinence, comparing to levels found in a group of healthy controls. DESIGN: Cross-sectional nested on a short follow-up study. SETTING: Two inpatient treatment units for adolescents, and a low-income neighborhood. PARTICIPANTS: 90 adolescents, of both genders, with diagnosis of crack cocaine dependence, and 81 healthy adolescents...
June 12, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28624603/an-intensive-assessment-of-alcohol-use-and-emergency-department-utilization-in-homeless-alcohol-dependent-adults
#7
August F Holtyn, Brantley P Jarvis, Shrinidhi Subramaniam, Conrad J Wong, Michael Fingerhood, George E Bigelow, Kenneth Silverman
BACKGROUND: Excessive alcohol use among the homeless may contribute to their high rates of emergency department use. Survey-based studies have provided some information on the relation between alcohol and emergency department use among the homeless. METHODS: This study used an intensive schedule of random breath collections and self-report assessments to examine the relation between emergency department utilization and alcohol use in homeless alcohol-dependent adults...
June 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28623823/a-randomized-placebo-controlled-trial-of-n-acetylcysteine-for-cannabis-use-disorder-in-adults
#8
Kevin M Gray, Susan C Sonne, Erin A McClure, Udi E Ghitza, Abigail G Matthews, Aimee L McRae-Clark, Kathleen M Carroll, Jennifer S Potter, Katharina Wiest, Larissa J Mooney, Albert Hasson, Sharon L Walsh, Michelle R Lofwall, Shanna Babalonis, Robert W Lindblad, Steven Sparenborg, Aimee Wahle, Jacqueline S King, Nathaniel L Baker, Rachel L Tomko, Louise F Haynes, Ryan G Vandrey, Frances R Levin
BACKGROUND: Cannabis use disorder (CUD) is a prevalent and impairing condition, and established psychosocial treatments convey limited efficacy. In light of recent findings supporting the efficacy of N-acetylcysteine (NAC) for CUD in adolescents, the objective of this trial was to evaluate its efficacy in adults. METHODS: In a 12-week double-blind randomized placebo-controlled trial, treatment-seeking adults ages 18-50 with CUD (N=302), enrolled across six National Drug Abuse Treatment Clinical Trials Network-affiliated clinical sites, were randomized in a 1:1 ratio to a 12-week course of NAC 1200mg (n=153) or placebo (n=149) twice daily...
June 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28623806/prevalence-and-correlates-of-light-and-non-daily-smoking-in-brazil-results-from-a-nationwide-representative-survey
#9
Taynara Dutra Batista Formagini, Henrique Pinto Gomide, Jaime Perales, Fernando Antonio Basile Colugnati
BACKGROUND: The research of light (≤10 cigarettes per day) and non-daily smokers in developing countries including Brazil is scarce despite the high prevalence of these groups among smokers and health risks associated to low-level smoking. OBJECTIVE: To describe health and smoking characteristics of Brazilian adult light and non-daily smokers. METHODS: We analyzed data from the 2013 Brazilian National Health Research survey (n=48,282). RESULTS: The prevalence of current manufactured cigarette smoking in the total sample was 12...
June 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28623805/heroin-and-pharmaceutical-opioid-overdose-events-emergency-medical-response-characteristics
#10
Caleb J Banta-Green, Phillip O Coffin, Jennie A Schoeppe, Joseph O Merrill, Lauren K Whiteside, Abigail K Ebersol
BACKGROUND: Emergency Medical Services (EMS) data may provide insight into opioid overdose incidence, clinical characteristics, and medical response. This analysis describes patient characteristics, clinical features, and EMS response to opioid overdoses, comparing heroin and pharmaceutical opioid (PO) overdoses, using a structured opioid overdose case criteria definition. METHODS: A case series study was conducted. EMS medical staff screened cases for possible overdoses and study staff categorized the likelihood of opioid overdose...
June 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28641130/sexual-orientation-minority-stress-social-norms-and-substance-use-among-racially-diverse-adolescents
#11
Ethan H Mereish, Jeremy T Goldbach, Claire Burgess, Angelo M DiBello
BACKGROUND: Sexual minority adolescents are more likely than their heterosexual peers to use substances. This study tested factors that contribute to sexual orientation disparities in substance use among racially and ethnically diverse adolescents. Specifically, we examined how both minority stress (i.e., homophobic bullying) and social norms (i.e., descriptive and injunctive norms) may account for sexual orientation disparities in recent and lifetime use of four substances: tobacco, alcohol, marijuana, and prescription drugs...
June 8, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28624604/user-characteristics-and-effect-profile-of-butane-hash-oil-an-extremely-high-potency-cannabis-concentrate
#12
Gary C K Chan, Wayne Hall, Tom P Freeman, Jason Ferris, Adrian B Kelly, Adam Winstock
BACKGROUND: Recent reports suggest an increase in use of extremely potent cannabis concentrates such as Butane Hash Oil (BHO) in some developed countries. The aims of this study were to examine the characteristics of BHO users and the effect profiles of BHO. DESIGN: Anonymous online survey in over 20 countries in 2014 and 2015. Participants aged 18 years or older were recruited through onward promotion and online social networks. The overall sample size was 181,870...
June 8, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28623807/hiv-tat-excites-d1-receptor-like-expressing-neurons-from-rat-nucleus-accumbens
#13
G Cristina Brailoiu, Elena Deliu, Jeffrey L Barr, Linda M Console-Bram, Alexandra M Ciuciu, Mary E Abood, Ellen M Unterwald, Eugen Brailoiu
BACKGROUND: HIV-1 infection and drug abuse are frequently co-morbid and their association greatly increases the severity of HIV-1-induced neuropathology. While nucleus accumbens (NAcc) function is severely perturbed by drugs of abuse, little is known about how HIV-1 infection affects NAcc. METHODS: We used calcium and voltage imaging to investigate the effect of HIV-1 trans-activator of transcription (Tat) on rat NAcc. Based on previous neuronal studies, we hypothesized that Tat modulates intracellular Ca(2+) homeostasis of NAcc neurons...
June 8, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28622625/cigarette-smoking-is-associated-with-amplified-age-related-volume-loss-in-subcortical-brain-regions
#14
Timothy C Durazzo, Dieter J Meyerhoff, Karmen K Yoder, Donna E Murray
BACKGROUND: Magnetic resonance imaging studies of cigarette smoking-related effects on human brain structure have primarily employed voxel-based morphometry, and the most consistently reported finding was smaller volumes or lower density in anterior frontal regions and the insula. Much less is known about the effects of smoking on subcortical regions. We compared smokers and non-smokers on regional subcortical volumes, and predicted that smokers demonstrate greater age-related volume loss across subcortical regions than non-smokers...
June 7, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28609722/examining-the-influence-of-adolescent-marijuana-use-on-adult-intelligence-further-evidence-in-the-causation-versus-spuriousness-debate
#15
Cashen M Boccio, Kevin M Beaver
OBJECTIVES: There is conflicting evidence regarding the association between adolescent marijuana use and adult intelligence, with some studies suggesting adolescent marijuana use can lead to declines in intelligence. The purpose of this study is to shed additional light on the potential link between marijuana use and changes in intelligence. METHODS: We employed change scores and ordinary least squares (OLS) analysis to test for associations between marijuana use and changes in intelligence scores from adolescence (ages 12-21) to adulthood (ages 18-26) using data drawn from the National Longitudinal Study of Adolescent to Adult Health...
June 6, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28609721/broken-lives-fights-fractures-and-motor-vehicle-accidents-among-heroin-users-entering-detoxification
#16
Michael D Stein, Bradley J Anderson, Genie L Bailey
BACKGROUND: The lives of persons who use illicit substances are filled with physical adversities and negative outcomes. OBJECTIVES: The purpose of this study was to determine: 1) the frequency of substance-related fights, fractures, and driving accidents in the past year among heroin users entering an inpatient detoxification program, and 2) to determine demographic and recent substance use factors associated with the most common of these physical traumas. METHODS: Between May 2015 and December 2015, we surveyed 433 persons entering a short-term inpatient detoxification program that reported heroin use in the last month and recorded their experiences of physical traumas in the last year...
June 6, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28641131/children-s-brain-activation-during-risky-decision-making-a-contributor-to-substance-problems
#17
Thomas J Crowley, Manish S Dalwani, Joseph T Sakai, Kristen M Raymond, Shannon K McWilliams, Marie T Banich, Susan K Mikulich-Gilbertson
OBJECTIVE: Among young children excessive externalizing behaviors often predict adolescent conduct and substance use disorders. Adolescents with those disorders show aberrant brain function when choosing between risky or cautious options. We therefore asked whether similarly aberrant brain function during risky decision-making accompanies excessive externalizing behaviors among children, hypothesizing an association between externalizing severity and regional intensity of brain activation during risky decision-making...
June 4, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28600929/detrimental-effects-of-self-administered-methamphetamine-during-pregnancy-on-offspring-development-in-the-rat
#18
Daniela Rüedi-Bettschen, Donna M Platt
BACKGROUND: Methamphetamine (METH) abuse by pregnant women is a commonly observed phenomenon. While the harmful effects of METH are well described for adults, there is only limited knowledge of the effects of METH use during pregnancy on the developing child. In the present study, we investigated how intraveneous (iv) METH self-administration throughout pregnancy affected rat dams and their offspring through weaning, compared to controls. METHODS: Female rats (n=16) were trained to self-administer METH iv; every drug infusion by a dam also resulted in a saline injection to a yoked control (n=16)...
June 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28600928/development-and-initial-validation-of-a-marijuana-cessation-expectancies-questionnaire
#19
Jane Metrik, Samantha G Farris, Elizabeth R Aston, Christopher W Kahler
BACKGROUND: The present research examines anticipated consequences of ceasing or reducing marijuana use with initial development and psychometric validation of a measure of marijuana cessation expectancies. METHODS: The 46-item Marijuana Cessation Expectancies Questionnaire (MCEQ) was initially developed from the content validity analysis of free responses about expected outcomes of stopping and decreasing marijuana use generated by 94 participants. The closed-ended MCEQ was subsequently administered to 151 non-treatment seeking regular marijuana users (used on M=64...
June 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28622627/changes-in-nonhuman-primate-brain-function-following-chronic-alcohol-consumption-in-previously-na%C3%A3-ve-animals
#20
Jared A Rowland, Jennifer R Stapleton-Kotloski, Greg E Alberto, April T Davenport, Robert J Kotloski, David P Friedman, Dwayne W Godwin, James B Daunais
INTRODUCTION: Chronic alcohol abuse is associated with neurophysiological changes in brain activity; however, these changes are not well localized in humans. Non-human primate models of alcohol abuse enable control over many potential confounding variables associated with human studies. The present study utilized high-resolution magnetoencephalography (MEG) to quantify the effects of chronic EtOH self-administration on resting state (RS) brain function in vervet monkeys. METHODS: Adolescent male vervet monkeys were trained to self-administer ethanol (n=7) or an isocaloric malto-dextrin solution (n=3)...
May 30, 2017: Drug and Alcohol Dependence
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