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addiction etiology

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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
#1
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
#2
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
#3
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 11, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28283392/addictions-neuroclinical-assessment-a-reverse-translational-approach
#4
REVIEW
Laura E Kwako, Reza Momenan, Erica N Grodin, Raye Z Litten, 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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
https://www.readbyqxmd.com/read/27907082/gender-differences-in-compulsive-buying-disorder-assessment-of-demographic-and-psychiatric-co-morbidities
#17
Cristiana Nicoli de Mattos, Hyoun S Kim, Marinalva G Requião, Renata F Marasaldi, Tatiana Z Filomensky, David C Hodgins, Hermano Tavares
Compulsive buying is a common disorder found worldwide. Although recent research has shed light into the prevalence, etiology and clinical correlates of compulsive buying disorder, less is known about gender differences. To address this empirical gap, we assessed potential gender differences in demographic and psychiatric co-morbidities in a sample of 171 compulsive buyers (20 men and 151 women) voluntarily seeking treatment in São Paulo, Brazil. A structured clinical interview confirmed the diagnosis of compulsive buying...
2016: PloS One
https://www.readbyqxmd.com/read/27900824/mandibular-angle-fractures-a-comparative-study-between-one-and-two-plate-fixation
#18
Marcelo Silva Monnazzi, Marisa Ap Cabrini Gabrielli, Mário Francisco Real Gabrielli, Alexandre Elias Trivellato
BACKGROUND/AIM: The mandibular angle fracture is a challenging fracture to manage. Over time, the literature has shown many types of treatment modalities and different kinds of internal fixation. The aim of this study was to evaluate the outcomes and complications of mandibular angle fractures managed by Champy's technique and two-plate fixation, over a period of 20 years. MATERIAL AND METHODS: The files of 149 patients with 155 angle fractures fulfilled the inclusion criteria and were chosen for this study...
April 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/27891376/smokeless-tobacco-and-stroke-a-clinico-epidemiological-follow-up-study-in-a-tertiary-care-hospital
#19
Subhransu Sekhar Jena, Shobhitendu Kabi, Baikuntha Nath Panda, B C Kameswari, Payal, Ishwar Chandra Behera, Subrat Kumar Tripathy, Seemanchana Mahanta
INTRODUCTION: Among the modifiable risk factors for stroke, tobacco smoking is well recognized. In some studies the use of Smokeless Tobacco (ST) has also been contributed as a risk factor for ischemic stroke. Use of ST is very common in South-East Asia. The form of ST varies according to the geographical and cultural variation. AIM: To study the various clinical symptoms and radiological findings of stroke due to different types of ST. MATERIALS AND METHODS: This was a prospective hospital based study carried out over a period of 2 years...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890469/methamphetamine-addiction-vulnerability-the-glutamate-the-bad-and-the-ugly
#20
Karen K Szumlinski, Kevin D Lominac, Rianne R Campbell, Matan Cohen, Elissa K Fultz, Chelsea N Brown, Bailey W Miller, Sema G Quadir, Douglas Martin, Andrew B Thompson, Georg von Jonquieres, Matthias Klugmann, Tamara J Phillips, Tod E Kippin
BACKGROUND: The high prevalence and severity of methamphetamine (MA) abuse demands greater neurobiological understanding of its etiology. METHODS: We conducted immunoblotting and in vivo microdialysis procedures in MA high/low drinking mice, as well as in isogenic C57BL/6J mice that varied in their MA preference/taking, to examine the glutamate underpinnings of MA abuse vulnerability. Neuropharmacological and Homer2 knockdown approaches were also used in C57BL/6J mice to confirm the role for nucleus accumbens (NAC) glutamate/Homer2 expression in MA preference/aversion...
October 13, 2016: Biological Psychiatry
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