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https://www.readbyqxmd.com/read/28394145/increased-startle-potentiation-to-unpredictable-stressors-in-alcohol-dependence-possible-stress-neuroadaptation-in-humans
#1
Christine A Moberg, Daniel E Bradford, Jesse T Kaye, John J Curtin
Stress plays a key role in addiction etiology and relapse. Rodent models posit that following repeated periods of alcohol and other drug intoxication, compensatory allostatic changes occur in the central nervous system (CNS) circuits involved in behavioral and emotional response to stressors. We examine a predicted manifestation of this neuroadaptation in recently abstinent alcohol-dependent humans. Participants completed a translational laboratory task that uses startle potentiation to unpredictable (vs. predictable) stressors implicated in the putative CNS mechanisms that mediate this neuroadaptation...
April 10, 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/28363516/vascular-disease-in-cocaine-addiction
#2
REVIEW
Keren Bachi, Venkatesh Mani, Devi Jeyachandran, Zahi A Fayad, Rita Z Goldstein, Nelly Alia-Klein
Cocaine, a powerful vasoconstrictor, induces immune responses including cytokine elevations. Chronic cocaine use is associated with functional brain impairments potentially mediated by vascular pathology. Although the Crack-Cocaine epidemic has declined, its vascular consequences are increasingly becoming evident among individuals with cocaine use disorder of that period, now aging. Paradoxically, during the period when prevention efforts could make a difference, this population receives psychosocial treatment at best...
March 14, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28361213/food-addiction-as-a-proxy-for-eating-disorder-and-obesity-severity-trauma-history-ptsd-symptoms-and-comorbidity
#3
REVIEW
Timothy D Brewerton
PURPOSE: Food addiction (FA) is a newly defined yet still controversial condition that has important etiological, developmental, treatment, prevention, and social policy implications. In this review, the case is made that FA (or high scores on the Yale Food Addiction Scale) may be used as a proxy measure for a matrix of interrelated clinical features, including greater eating disorder severity, greater obesity severity, more severe trauma histories, greater symptoms of posttraumatic stress disorder (PTSD), greater psychiatric comorbidity, as well as greater medical morbidity and mortality...
March 30, 2017: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/28345528/genetic-and-psychosocial-factors-for-benzodiazepine-addiction-an-analysis-based-on-the-results-of-the-authors-own-research-conducted-in-a-group-of-benzodiazepine-addicted-and-non-addicted-individuals
#4
Anna Konopka, Monika Mak, Anna Grzywacz, Sławomir Murawiec, Jerzy Samochowiec
PURPOSE: In spite of the fact that the addictive potential of benzodiazepine (BDZ) drugs has been known for a long time, benzodiazepine addiction remains a common problem for psychiatry to deal with. The etiology of benzodiazepine addiction is very complex. Among the risk factors, the course of the treatment, demographic status and psychological features of a patient seem to play an important role. The aim of this study was to investigate both psychological and genetic factors differentiating benzodiazepine addicts from non-addicted users...
March 13, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28322978/delta-opioid-receptor-antagonism-leads-to-excessive-ethanol-consumption-in-mice-with-enhanced-activity-of-the-endogenous-opioid-system
#5
Piotr Poznanski, Anna Lesniak, Michal Korostynski, Klaudia Szklarczyk, Marzena Lazarczyk, Piotr Religa, Magdalena Bujalska-Zadrozny, Bogdan Sadowski, Mariusz Sacharczuk
The opioid system modulates the central reinforcing effects of ethanol and participates in the etiology of addiction. However, the pharmacotherapy of ethanol dependence targeted on the opioid system is little effective and varies due to individual patients' sensitivity. In the present study, we used two mouse lines with high (HA) and low (LA) activity of the endogenous opioid system to analyze the effect of opioid receptor blockade on ethanol drinking behavior. We found that LA and HA lines characterized by divergent magnitudes of swim stress-induced analgesia also differ in ethanol intake and preference...
March 18, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28315549/substance-abuse-and-addiction-implications-for-pain-management-in-patients-with-cancer%C3%A2
#6
Yu-Ping Chang
BACKGROUND: Substance use disorders (SUDs) are chronic diseases that may complicate the nursing care of patients with cancer, affecting their ability to adhere to treatment protocols, responses to cancer pain, and use of opioids for analgesia. OBJECTIVES: This article explores how the presence of an SUD may affect oncology nursing care and pain management. METHODS: The PubMed and CINAHL® databases were searched for articles from 1980-2016 using the keywords cancer, cancer pain, addiction, substance abuse, and alcoholism...
April 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28300615/heritability-of-brain-activity-related-to-response-inhibition-a-longitudinal-genetic-study-in-adolescent-twins
#7
Andrey P Anokhin, Simon Golosheykin, Julia D Grant, Andrew C Heath
The ability to inhibit prepotent but context- or goal-inappropriate responses is essential for adaptive self-regulation of behavior. Deficits in response inhibition, a key component of impulsivity, have been implicated as a core dysfunction in a range of neuropsychiatric disorders such as ADHD and addictions. Identification of genetically transmitted variation in the neural underpinnings of response inhibition can help to elucidate etiological pathways to these disorders and establish the links between genes, brain, and behavior...
March 12, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28283392/addictions-neuroclinical-assessment-a-reverse-translational-approach
#8
REVIEW
Laura E Kwako, Reza Momenan, Erica N Grodin, Raye Z Litten, George F Koob, David Goldman
Incentive salience, negative emotionality, and executive function are functional domains that are etiologic in the initiation and progression of addictive disorders, having been implicated in humans with addictive disorders and in animal models of addictions. Measures of these three neuroscience-based functional domains can capture much of the effects of inheritance and early exposures that lead to trait vulnerability shared across different addictive disorders. For specific addictive disorders, these measures can be supplemented by agent specific measures such as those that access pharmacodynamic and pharmacokinetic variation attributable to agent-specific gatekeeper molecules including receptors and drug-metabolizing enzymes...
March 7, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28264500/geneanalytics-pathway-analysis-and-genetic-overlap-among-autism-spectrum-disorder-bipolar-disorder-and-schizophrenia
#9
Naveen S Khanzada, Merlin G Butler, Ann M Manzardo
Bipolar disorder (BPD) and schizophrenia (SCH) show similar neuropsychiatric behavioral disturbances, including impaired social interaction and communication, seen in autism spectrum disorder (ASD) with multiple overlapping genetic and environmental influences implicated in risk and course of illness. GeneAnalytics software was used for pathway analysis and genetic profiling to characterize common susceptibility genes obtained from published lists for ASD (792 genes), BPD (290 genes) and SCH (560 genes). Rank scores were derived from the number and nature of overlapping genes, gene-disease association, tissue specificity and gene functions subdivided into categories (e...
February 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28255755/epigenetics-a-link-between-addiction-and-social-environment
#10
REVIEW
Duyilemi C Ajonijebu, Oualid Abboussi, Vivienne A Russell, Musa V Mabandla, William M U Daniels
The detrimental effects of drug abuse are apparently not limited to individuals but may also impact the vulnerability of their progenies to develop addictive behaviours. Epigenetic signatures, early life experience and environmental factors, converge to influence gene expression patterns in addiction phenotypes and consequently may serve as mediators of behavioural trait transmission between generations. The majority of studies investigating the role of epigenetics in addiction do not consider the influence of social interactions...
March 2, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28251590/towards-precision-addiction-treatment-new-findings-in-co-morbid-substance-use-and-attention-deficit-hyperactivity-disorders
#11
REVIEW
Sean X Luo, Frances R Levin
Attention-deficit hyperactivity disorder (ADHD) and substance use disorders (SUDs) may have common etiologies. ADHD is more prevalent in patients with substance use disorders, and this pattern is consistent across different substances of abuse. Individuals with SUDs and ADHD exhibit significant variations in their clinical presentations. The developmental trajectory of ADHD to SUDs is complex: ADHD symptoms appear first in some patients but not in others. Many patients present with a heterogeneous collection of psychiatric and substance use co-morbidities, and these symptoms change over time...
March 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28240821/-invited-review-genetic-research-on-alcohol-use-outcomes-in-african-american-populations-a-review-of-the-literature-associated-challenges-and-implications
#12
REVIEW
Danielle M Dick, Peter Barr, Mignonne Guy, Aashir Nasim, Denise Scott
BACKGROUND AND OBJECTIVES: There have been remarkable advances in understanding genetic influences on complex traits; however, individuals of African descent have been underrepresented in genetic research. METHODS: We review the limitations of existing genetic research on alcohol phenotypes in African Americans (AA) including both twin and gene identification studies, possible reasons for underrepresentation of AAs in genetic research, the implications of the lack of racially diverse samples, and special considerations regarding conducting genetic research in AA populations...
February 27, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28231610/polygenic-risk-scores-for-schizophrenia-and-bipolar-disorder-associate-with-addiction
#13
Gunnar W Reginsson, Andres Ingason, Jack Euesden, Gyda Bjornsdottir, Sigurgeir Olafsson, Engilbert Sigurdsson, Hogni Oskarsson, Thorarinn Tyrfingsson, Valgerdur Runarsdottir, Ingunn Hansdottir, Stacy Steinberg, Hreinn Stefansson, Daniel F Gudbjartsson, Thorgeir E Thorgeirsson, Kari Stefansson
We use polygenic risk scores (PRSs) for schizophrenia (SCZ) and bipolar disorder (BPD) to predict smoking, and addiction to nicotine, alcohol or drugs in individuals not diagnosed with psychotic disorders. Using PRSs for 144 609 subjects, including 10 036 individuals admitted for in-patient addiction treatment and 35 754 smokers, we find that diagnoses of various substance use disorders and smoking associate strongly with PRSs for SCZ (P = 5.3 × 10(-50) -1.4 × 10(-6) ) and BPD (P = 1.7 × 10(-9) -1...
February 23, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28225877/synthetic-cannabinoids-in-the-kidneys
#14
Alper Alp, Hakan Akdam, Banu Yılmaz Avcıoğlu, Sibel Ersan
Acute kidney injury is an important cause of mortality and morbidity today and can occur due to several reasons. As time, geographic regions, and living conditions change, various etiological agents arise with nephrotoxic effects. Awareness of such nephrotoxic effects has been raised with the increasing frequency of addictive substance use, especially among young people in society.
January 1, 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28191914/relative-contribution-of-genetic-individual-and-self-efficacy-factors-to-smoking-cessation-in-a-chinese-rural-population
#15
Qiang Wang, Suyun Li, Huijie Li, Xiaorong Yang, Fan Jiang, Nan Zhang, Mingkui Han, Chongqi Jia
BACKGROUND AND OBJECTIVES: Nicotine dependence is influenced by genetic, individual, and psychological factors. We aimed to examine whether nicotinic acetylcholine receptor genes (CHRN) were associated with smoking cessation (SC) using genetic risk score and compare the relative contribution of genetic, individual and self-efficacy factors to SC. METHODS: Eight hundred and nineteen male smokers (mean age: 59.62) were recruited from 17 villages of three counties in Shandong province, China...
February 13, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28176155/genetic-counseling-for-alcohol-addiction-assessing-perceptions-and-potential-utility-in-individuals-with-lived-experience-and-their-family-members
#16
Fayth M Kalb, Victoria Vincent, Teresa Herzog, Jehannine Austin
Though addictions to substances including alcohol are highly heritable, there have been no studies regarding the possible applicability of genetic counseling to this set of conditions. Adults (≥18 years old) with a personal and/or family history of alcohol addiction were recruited to participate in an online survey-based study comprising 43 questions about beliefs/concern about recurrence risk and etiology of alcohol addiction and its impact on childbearing decisions, and perceptions of potential utility of genetic counseling for alcohol addiction...
February 7, 2017: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/28127518/the-lack-of-association-between-angiotensin-converting-enzyme-gene-insertion-deletion-polymorphism-and-nicotine-dependence-in-multiple-sclerosis
#17
Sergej Nadalin, Alena Buretić-Tomljanović, Polona Lavtar, Nada Starčević Čizmarević, Alenka Hodžić, Juraj Sepčić, Miljenko Kapović, Borut Peterlin, Smiljana Ristić
OBJECTIVE: Blood-borne angiotensin II is generated from angiotensinogen via cleavage by renin and angiotensin-converting enzyme (ACE), an enzymatic cascade known as the renin-angiotensin system (RAS). Several lines of evidence indicate that ACE, beyond its classical role of mediating blood pressure regulation, might contribute to the etiology of substance addictions by influencing dopaminergic signaling. A functional insertion/deletion (I/D) polymorphism of the ACE gene was associated with risk for being a smoker among individuals with depression and with smoking severity in studies comprising patients with depression and healthy controls...
January 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28087369/multidimensional-assessment-of-impulsivity-in-relation-to-obesity-and-food-addiction
#18
Lauren VanderBroek-Stice, Monika K Stojek, Steven R H Beach, Michelle R vanDellen, James MacKillop
Based on similarities between overconsumption of food and addictive drugs, there is increasing interest in "food addiction," a compulsive eating pattern defined using symptoms parallel to substance use disorders. Impulsivity, a multidimensional construct robustly linked to drug addiction, has been increasingly examined as an obesity determinant, but with mixed findings. This study sought to clarify relations between three major domains of impulsivity (i.e., impulsive personality traits, discounting of delayed rewards, and behavioral inhibition) in both obesity and food addiction...
May 1, 2017: Appetite
https://www.readbyqxmd.com/read/28044061/in-silico-identification-and-in-vivo-validation-of-mir-495-as-a-novel-regulator-of-motivation-for-cocaine-that-targets-multiple-addiction-related-networks-in-the-nucleus-accumbens
#19
R M Bastle, R J Oliver, A S Gardiner, N S Pentkowski, F Bolognani, A M Allan, T Chaudhury, M St Peter, N Galles, C Smith, J L Neisewander, N I Perrone-Bizzozero
MicroRNAs (miRNAs) are important post-transcriptional regulators of gene expression and are implicated in the etiology of several neuropsychiatric disorders, including substance use disorders (SUDs). Using in silico genome-wide sequence analyses, we identified miR-495 as a miRNA whose predicted targets are significantly enriched in the Knowledgebase for Addiction Related Genes (ARG) database (KARG; http://karg.cbi.pku.edu.cn). This small non-coding RNA is also highly expressed within the nucleus accumbens (NAc), a pivotal brain region underlying reward and motivation...
January 3, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/27920734/role-of-stressful-life-events-avoidant-coping-styles-and-neuroticism-in-online-game-addiction-among-college-students-a-moderated-mediation-model
#20
Huanhuan Li, Yingmin Zou, Jiaqi Wang, Xuelin Yang
Online game addiction (OGA) is becoming a significant problem worldwide. The aim of this study was to explore the incidence of OGA and the roles of stressful life events, avoidant coping styles (ACSs), and neuroticism in OGA. A total of 651 Chinese college students were selected by random cluster sampling. Subjects completed the Chinese version of Young's eight-item Internet Addiction Scale (CIAS), Online Game Cognition Addiction Scale (OGCAS), Revised Eysenck Personality Questionnaire Short Scale in Chinese (EPQ-RSC), Chinese College-student Stress Questionnaire, and Coping Style Questionnaire...
2016: Frontiers in Psychology
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