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https://www.readbyqxmd.com/read/28528402/impact-of-brown-rice-specific-%C3%AE-oryzanol-on-epigenetic-modulation-of-dopamine-d2-receptors-in-brain-striatum-in-high-fat-diet-induced-obesity-in-mice
#1
Chisayo Kozuka, Tadashi Kaname, Chigusa Shimizu-Okabe, Chitoshi Takayama, Masato Tsutsui, Masayuki Matsushita, Keiko Abe, Hiroaki Masuzaki
AIMS/HYPOTHESIS: Overeating of dietary fats causes obesity in humans and rodents. Recent studies in humans and rodents have demonstrated that addiction to fats shares a common mechanism with addiction to alcohol, nicotine and narcotics in terms of a dysfunction of brain reward systems. It has been highlighted that a high-fat diet (HFD) attenuates dopamine D2 receptor (D2R) signalling in the striatum, a pivotal regulator of the brain reward system, resulting in hedonic overeating. We previously reported that the brown rice-specific bioactive constituent γ-oryzanol attenuated the preference for an HFD via hypothalamic control...
May 20, 2017: Diabetologia
https://www.readbyqxmd.com/read/28528203/changes-in-resting-state-functional-brain-connectivity-and-withdrawal-symptoms-are-associated-with-acute-electronic-cigarette-use
#2
Andréa L Hobkirk, Travis T Nichols, Jonathan Foulds, Jessica M Yingst, Susan Veldheer, Shari Hrabovsky, John Richie, Thomas Eissenberg, Stephen J Wilson
Resting state functional brain connectivity (rsFC) may be an important neuromarker of smoking behavior. Prior research has shown, among cigarette smokers, that nicotine administration alters rsFC within frontal and parietal cortices involved in executive control, as well as striatal regions that drive reward processing. These changes in rsFC have been associated with reductions in withdrawal symptom severity. We currently have a limited understanding of how rsFC is affected by the use of electronic cigarettes (ecigs), an increasingly popular class of products, the members of which deliver nicotine with varying effectiveness...
May 17, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28527373/-i-don-t-believe-it-acceptance-and-skepticism-of-genetic-health-information-among-african-american-and-white-smokers
#3
Erika A Waters, Linda Ball, Sarah Gehlert
RATIONALE: Effective translation of genomics research into practice depends on public acceptance of genomics-related health information. OBJECTIVE: To explore how smokers come to accept or reject information about the relationship between genetics and nicotine addiction. METHODS: Thirteen focus groups (N = 84) were stratified by education (seven < Bachelor's degree, six ≥ Bachelor's degree) and race (eight black, five white). Participants viewed a 1-min video describing the discovery of a genetic variant associated with increased risk of nicotine addiction and lung cancer...
May 3, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28521782/combining-alcohol-interventions-with-tobacco-addictions-treatment-in-primary-care-the-combat-study-a-pragmatic-cluster-randomized-trial
#4
Nadia Minian, Dolly Baliunas, Laurie Zawertailo, Aliya Noormohamed, Norman Giesbrecht, Christian S Hendershot, Bernard Le Foll, Jürgen Rehm, Andriy Samokhvalov, Peter L Selby
BACKGROUND: Tobacco and alcohol use present multiplicative risk for aerodigestive cancers. Reducing alcohol consumption improves smoking cessation outcomes and reduces cancer risk. Risky alcohol consumption and smoking are often treated separately despite concurrent treatment potentially leading to better outcomes for each. However, no rapidly scalable program exists for combined interventions in primary care clinics spread across wide geographic areas. This cluster randomized trial aims to report on the effects of a novel clinical decision support system (CDSS) on intervention rates by primary care practitioners addressing risky alcohol use in a smoking cessation program...
May 18, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28521241/cognitive-avoidance-and-aversive-cues-related-to-tobacco-in-male-smokers
#5
Ji Sun Hong, Sun Mi Kim, Hye Yeon Jung, Kyoung Doo Kang, Kyung Joon Min, Doug Hyun Han
BACKGROUND: Treatment using aversive conditioning has been suggested for smoking cessation. The efficacy of this method is thought to be associated with cognitive avoidance. We compare differences in avoidance traits and patterns of associated brain activation in response to cues that induce cravings versus aversion between smokers and non-smokers. METHODS: Fifteen smokers and fifteen non-smokers completed cue reactivity tasks while undergoing functional magnetic resonance imaging (fMRI) to examine brain responses to craving-inducing cues (Cr) and aversion-inducing cues (Av)...
May 11, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28520985/warning-statements-and-safety-practices-among-manufacturers-and-distributors-of-electronic-cigarette-liquids-in-the-united-states
#6
Pebbles Fagan, Pallav Pokhrel, Thaddeus A Herzog, Mignonne C Guy, Kari-Lyn K Sakuma, Dennis R Trinidad, Kevin Cassel, Dorothy Jorgensen, Tania Lynch, Jamie Q Felicitas-Perkins, Sherilyn Palafox, Faith Hamamura, Sarah Maloney, Kaylah Degree, Kymberle Sterling, Eric Moolchan, Mark S Clanton, Thomas Eissenberg
Introduction.: Prior to the Food and Drug Administration's (FDA) regulation of electronic cigarettes and warning statements related to nicotine addiction, there was no critical examination of manufacturer/distributor voluntary practices that could potentially inform FDA actions aimed to protect consumers. This study examined the content of warning statements and safety characteristics of electronic cigarette liquid bottles using a national sample. Methods.: Research staff randomly selected four electronic cigarette liquid manufacturers/distributors from four U...
May 18, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28512684/therapeutic-applications-of-classic-hallucinogens
#7
Michael P Bogenschutz, Stephen Ross
This chapter reviews what is known about the therapeutic uses of the serotonergic or classic hallucinogens, i.e., psychoactive drugs such as LSD and psilocybin that exert their effects primarily through agonist activity at serotonin 2A (5HT2A) receptors. Following a review of the history of human use and scientific study of these drugs, the data from clinical research are summarized, including extensive work on the use of classic hallucinogens in the treatment of alcoholism and other addictions, studies of the use of LSD and psilocybin to relieve distress concerning death, particularly in patients with advanced or terminal cancer, and more limited data concerning the use of classic hallucinogens to treat mood and anxiety disorders...
May 18, 2017: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28508106/differential-effects-of-pair-housing-on-voluntary-nicotine-consumption-a-comparison-between-male-and-female-adolescent-rats
#8
Hyunchan Lee, Minji Jang, Woonhee Kim, Jihyun Noh
RATIONALE: Tobacco smoking occurs in a wide array of social circumstances. Social support for quitting is generally used to stop smoking, while peer interactions may be a crucial factor in triggering tobacco use among adolescents. OBJECTIVES: To determine the role of social factors on nicotine dependence, we compared single- and pair-housed rats subjected to voluntary oral nicotine consumption tests. METHODS: Six-week-old adolescent rats were subjected to experimental procedures and assigned to one of the following groups: a male single group, a male pair group with a sibling, a female single group, and a female pair group with a sibling...
May 15, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28507526/behavioral-and-neural-manifestations-of-reward-memory-in-carriers-of-low-expressing-versus-high-expressing-genetic-variants-of-the-dopamine-d2-receptor
#9
Anni Richter, Adriana Barman, Torsten Wüstenberg, Joram Soch, Denny Schanze, Anna Deibele, Gusalija Behnisch, Anne Assmann, Marieke Klein, Martin Zenker, Constanze Seidenbecher, Björn H Schott
Dopamine is critically important in the neural manifestation of motivated behavior, and alterations in the human dopaminergic system have been implicated in the etiology of motivation-related psychiatric disorders, most prominently addiction. Patients with chronic addiction exhibit reduced dopamine D2 receptor (DRD2) availability in the striatum, and the DRD2 TaqIA (rs1800497) and C957T (rs6277) genetic polymorphisms have previously been linked to individual differences in striatal dopamine metabolism and clinical risk for alcohol and nicotine dependence...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28507465/distribution-of-polymorphic-variants-of-cyp2a6-and-their-involvement-in-nicotine-addiction
#10
REVIEW
Luis A López-Flores, Gloria Pérez-Rubio, Ramcés Falfán-Valencia
Tobacco consumption has become a major public health issue, which has motivated studies to identify and understand the biological processes involved in the smoking behavior for prevention and smoking cessation treatments. CYP2A6 has been identified as the main gene that codifies the enzyme that metabolizes nicotine. Many alleles have been identified after the discovery of CYP2A6, suggesting a wide interethnic variability and a diverse smoking behavior of the allele carrying individuals. The main purpose of this review is to update and highlight the effects of the CYP2A6 gene variability related to tobacco consumption reported from diverse human populations...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28503193/correlates-comorbidities-and-suicidal-tendencies-of-problematic-game-use-in-a-national-wide-sample-of-korean-adults
#11
Subin Park, Hong Jin Jeon, Jung Woo Son, Haesoo Kim, Jin Pyo Hong
BACKGROUND: This study aimed to investigate the prevalence, correlates, comorbidities, and suicidal tendencies of problematic game use in a nationally representative sample of Korean adults. METHODS: Of the 6022 subjects who participated in the 2011 Korean Epidemiologic Catchment Area study and completed the Composite International Diagnostic Interview 2.1, 1397 game users were evaluated for problematic game use using 9-item DSM-5 proposed criteria for Internet gaming disorder...
2017: International Journal of Mental Health Systems
https://www.readbyqxmd.com/read/28498560/deletion-of-%C3%AE-5-nicotine-receptor-subunits-abolishes-nicotinic-aversive-motivational-effects-in-a-manner-that-phenocopies-dopamine-receptor-antagonism
#12
Taryn E Grieder, Olivier George, Mandy Yee, Michael A Bergamini, Michal Chwalek, Geith Maal-Bared, Hector Vargas-Perez, Derek van der Kooy
Nicotine addiction is a worldwide epidemic that claims millions of lives each year. Genetic deletion of α5 nicotinic acetylcholine receptor (nAChR) subunits has been associated with increased nicotine intake, however, it remains unclear whether acute nicotine is less aversive or more rewarding, and whether mice lacking the α5 nAChR subunit can experience withdrawal from chronic nicotine. We used place conditioning and conditioned taste avoidance paradigms to examine the effect of α5 subunit-containing nAChR deletion (α5 -/-) on conditioned approach and avoidance behaviour in nondependent and nicotine-dependent and -withdrawn mice, and compared these motivational effects with those elicited after dopamine receptor antagonism...
May 12, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28497655/nicotine-self-administration-reverses-cognitive-deficits-in-a-rat-model-for-schizophrenia
#13
Uta Waterhouse, Katharine A Brennan, Bart A Ellenbroek
High comorbidity between schizophrenia and tobacco addiction has been well established. Explanatory theories include nicotine as a cognitive enhancer ameliorating symptoms of schizophrenia and underlying shared substrates increasing susceptibility to addiction in these individuals. To test these non-mutually exclusive theories, the maternal immune activation (MIA) model was utilized. To this end, pregnant Sprague Dawley rats were subcutaneously injected with a bacterial endotoxin, lipopolysaccharide (0.5 mg/kg), on gestation days 10 and 11...
May 12, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28489501/smoking-cessation-treatment-for-patients-with-mental-disorders-using-cbt-and-combined-pharmacotherapy
#14
Aline Rodrigues Loreto, Carlos Felipe Cavalcanti Carvalho, Fernanda Piotto Fralonardo, Flavia Ismael, Arthur Guerra de Andrade, João Maurício Castaldelli-Maia
OBJECTIVES: To investigate smoking treatment effectiveness and retention in a population with and without mental disorders (MD). Participants received cognitive-behavioral therapy (CBT) plus nicotine patch alone or in combination with other medications (i.e., gum, bupropion, or nortriptyline) for smoking cessation treatment in a Brazilian Psychosocial Care Center unit (CAPS), taking into account sociodemographics and smoking profile covariates. METHODS: Comparison of treatment success (7-day point prevalence abstinence at the end of the treatment) and retention (presence of the individual in all of the 4 medical consultations and 6 group sessions) in two subsamples of patients with MD (n = 267) and without MD (n = 397) who were included in a 6-week treatment provided by a CAPS from 2007 to 2013...
May 10, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28487076/evidence-for-differential-opioid-use-disorder-in-schizophrenia-in-an-addiction-treatment-population
#15
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
#16
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/28484990/behavioral-and-biochemical-impact-of-chronic-unpredictable-mild-stress-on-the-acquisition-of-nicotine-conditioned-place-preference-in-rats
#17
G Biala, K Pekala, A Boguszewska-Czubara, A Michalak, M Kruk-Slomka, K Grot, B Budzynska
Addiction is a chronic psychiatric disease which represents a global problem, and stress can increase drug addiction and relapse. Taking into account frequent concomitance of nicotine dependence and stress, the purpose of the present study was to assess behavioral and biochemical effects of chronic unpredictable mild stress (CUMS) exposure on nicotine reward in rats measured in the conditioned place preference (CPP) paradigm. Rats were submitted to the CUMS for 3 weeks and conditioned with nicotine (0.175 mg/kg) for 2 or 3 days...
May 8, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28480578/protecting-children-and-families-from-tobacco-and-tobacco-related-ncds-in-the-western-pacific-good-practice-examples-from-malaysia-philippines-and-singapore
#18
A M David, S P Mercado, J D Klein, M S/O K Kaundan, H N Koong, E Garcia
BACKGROUND: Non-communicable diseases (NCDs) are generally considered diseases of adulthood, but NCD risk factors like tobacco use often are taken up during childhood and adolescence, and second-hand smoke exposure affects child survival and development. METHODS: At a regional meeting of the Asia Pacific Child and Family Health Alliance for Tobacco Control, members reviewed existing good practices of child-focused tobacco control approaches using health promotion strategies...
May 7, 2017: Child: Care, Health and Development
https://www.readbyqxmd.com/read/28476409/differential-behavioral-effects-of-nicotine-in-adult-male-and-female-rats-with-a-history-of-prenatal-methamphetamine-exposure
#19
Boyd Rorabaugh, Sarah Seeley, Mary Evans, Christina Marengo, Manoranjan D'Souza
The goal of the current study was to assess the effects of prenatal methamphetamine (MA)/saline exposure on nicotine-induced stimulant and aversive effects in both male and female adult rats. The aversive effects of nicotine were assessed using the nicotine-induced conditioned taste aversion model (0.4mg/kg, base), while the stimulant effects of nicotine were measured by assessing changes in spontaneous locomotor activity after subcutaneous administration of different doses of nicotine (0, 0.1 & 0.4mg/kg, base)...
May 2, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28462940/chronic-nicotine-alters-corticostriatal-plasticity-in-the-striatopallidal-pathway-mediated-by-nr2b-containing-silent-synapses
#20
Jianxun Xia, Allison M Meyers, Jeff A Beeler
Smoking is the leading cause of preventable death in the U.S. and success rates for quitting remain low. High relapse rates are attributed to pervasive nicotine-reinforced associative learning of incentive cues that is highly resistant to extinction. Why such learning is so persistent is poorly understood but may arise as a consequence of neuroadaptations in synaptic plasticity induced by chronic nicotine. We used whole-cell patch clamp recording to investigate the effect of chronic nicotine (cNIC) on synaptic plasticity in dopamine D2 receptor-expressing medium spiny neurons in the indirect, striatopallidal pathway in dorsolateral striatum...
May 2, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
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