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https://www.readbyqxmd.com/read/28742414/neural-correlates-of-depressive-symptoms-in-smokers-a-systematic-review-of-imaging-studies
#1
Michele de Oliveira Gonzalez, Anna E Goudriaan, Cíntia de Azevedo-Marques Périco, Marcela Waisman Campos, Arthur Guerra de Andrade, Dinesh Bhugra, João Mauricio Castaldelli-Maia
This review aims to summarize neuroimaging studies in order to better understand the neural correlates of depressive symptoms in tobacco smokers. Using the keywords "depressive OR depression" AND "tobacco OR nicotine OR smok(*) OR cigarette" AND "neuroimage OR magnetic resonance OR smri OR structural magnetic resonance OR fmri OR functional magnetic resonance OR pet OR positron emission tomography", literature search was conducted in PubMed, Web of Science and PsycINFO databases. The first and the last author read the abstracts of all the studies found in the search (n = 179)...
July 25, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28742413/association-of-current-and-lifetime-dsm-iv-drug-use-disorder-diagnoses-to-6-month-changes-in-smoking-behavior-in-risky-drinking-smokers-a-pilot-study
#2
Amy Cohn, Sarah Ehlke
BACKGROUND: Alcohol and other drug use disorders co-occur with cigarette smoking and negatively impact cessation outcomes. OBJECTIVES: This study examined the differential effects of current and lifetime DSM-IV drug diagnoses on the 6-month smoking outcomes of 84 untreated heavy drinking smokers who were motivated to quit smoking in the next 6-months. METHODS: Generalized estimating equations (GEE) assessed changes in nicotine dependence, readiness to quit smoking, and prevalence of heavy smoking from baseline to 6-months as a function of time, baseline drinking severity, and drug diagnosis...
July 25, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28742076/altered-neurite-morphology-and-cholinergic-function-of-induced-pluripotent-stem-cell-derived-neurons-from-a-patient-with-kleefstra-syndrome-and-autism
#3
J Nagy, J Kobolák, S Berzsenyi, Z Ábrahám, H X Avci, I Bock, Z Bekes, B Hodoscsek, A Chandrasekaran, A Téglási, P Dezső, B Koványi, E T Vörös, L Fodor, T Szél, K Németh, A Balázs, A Dinnyés, B Lendvai, G Lévay, V Román
The aim of the present study was to establish an in vitro Kleefstra syndrome (KS) disease model using the human induced pluripotent stem cell (hiPSC) technology. Previously, an autism spectrum disorder (ASD) patient with Kleefstra syndrome (KS-ASD) carrying a deleterious premature termination codon mutation in the EHMT1 gene was identified. Patient specific hiPSCs generated from peripheral blood mononuclear cells of the KS-ASD patient were differentiated into post-mitotic cortical neurons. Lower levels of EHMT1 mRNA as well as protein expression were confirmed in these cells...
July 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28741144/tobacco-use-and-smoke-exposure-in-children-new-trends-harm-and-strategies-to-improve-health-outcomes
#4
REVIEW
Luv D Makadia, P Jervey Roper, Jeannette O Andrews, Martha S Tingen
PURPOSE OF REVIEW: Every day in the USA, approximately 4000 adolescents begin smoking and the adolescent brain is particularly susceptible to nicotine addiction. We present current pediatric trends on tobacco use and exposures, various new products used by adolescents, the adverse biological and behavioral effects of tobacco use and exposures, and tobacco control strategies to eliminate tobacco-related illnesses and deaths in the pediatric population. RECENT FINDINGS: Twelve-20% of women continue to smoke during pregnancy...
August 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28740424/risk-and-protective-factors-in-the-clinical-rehabilitation-of-chronic-back-pain
#5
Pia-Maria Wippert, Michael Fliesser, Matthias Krause
OBJECTIVES: Chronic back pain (CBP) can lead to disability and burden. In addition to its medical causes, its development is influenced by psychosocial risk factors, the so-called flag factors, which are categorized and integrated into many treatment guidelines. Currently, most studies investigate single flag factors, which limit the estimation of individual factor significance in the development of chronic pain. Furthermore, factors concerning patients' lifestyle, biography and treatment history are often neglected...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28739690/nicotine-exposure-augments-renal-toxicity-of-5-aza-cytidine-through-p66shc-prevention-by-resveratrol
#6
Istvan Arany, Samuel Hall, Amir Faisal, Mehul Dixit
BACKGROUND/AIM: We have shown that either chronic nicotine (NIC) exposure or 5-aza-cytidine (AZA) augments oxidative stress-dependent injury through stimulating p66shc in renal cells. Hence, NIC could exacerbate adverse effects of AZA while antioxidants such as resveratrol (RES) could prevent it. MATERIALS AND METHODS: Renal proximal tubule cells (NRK52E) were treated with 20 μM RES prior to 200 μM NIC plus 100 nM AZA and cell injury (LDH release) was determined...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28739213/association-between-substance-use-disorder-and-polygenic-liability-to-schizophrenia
#7
Sarah M Hartz, Amy C Horton, Mary Oehlert, Caitlin E Carey, Arpana Agrawal, Ryan Bogdan, Li-Shiun Chen, Dana B Hancock, Eric O Johnson, Carlos N Pato, Michele T Pato, John P Rice, Laura J Bierut
BACKGROUND: There are high levels of comorbidity between schizophrenia and substance use disorder, but little is known about the genetic etiology of this comorbidity. METHODS: We tested the hypothesis that shared genetic liability contributes to the high rates of comorbidity between schizophrenia and substance use disorder. To do this, polygenic risk scores for schizophrenia derived from a large meta-analysis by the Psychiatric Genomics Consortium were computed in three substance use disorder datasets: the Collaborative Genetic Study of Nicotine Dependence (ascertained for tobacco use disorder; n = 918 cases; 988 control subjects), the Collaborative Study on the Genetics of Alcoholism (ascertained for alcohol use disorder; n = 643 cases; 384 control subjects), and the Family Study of Cocaine Dependence (ascertained for cocaine use disorder; n = 210 cases; 317 control subjects)...
June 6, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28738266/adhd-symptoms-impact-smoking-outcomes-and-withdrawal-in-response-to-varenicline-treatment-for-smoking-cessation
#8
L Cinnamon Bidwell, Hollis C Karoly, Kent E Hutchison, Angela D Bryan
INTRODUCTION: Attention-Deficit/Hyperactivity Disorder (ADHD) is associated with nicotine dependence and difficulty quitting smoking. Few cessation trials specifically consider the impact of ADHD on treatment outcomes, including those testing established pharmacological therapies, such as varenicline. METHODS: The current study focused on the impact of pretreatment ADHD inattention (IN) and hyperactivity-impulsivity (HI) symptoms on treatment outcome in a randomized controlled trial of varenicline [N=205, average age=34...
July 18, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28737354/-do-electronic-cigarettes-increase-the-risk-of-smoking-among-adolescents-and-young-adults
#9
Sylvain Gautier, Shérazade Kinouani, Chantal Raherison
Introduction: Electronic cigarette use is significantly higher among 15-24-year-olds than in other age-groups. Electronic cigarettes, which may contain nicotine, could be a gateway to smoking initiation among young people. In this article, we reviewed the literature on smoking initiation or smoking enhancement by the use of e-cigarettes. Methods: We carried out a qualitative analysis in January 2016. We selected all longitudinal studies among adolescents or young adults using electronic cigarettes. Results: The analysis focused on 5 of the 544 articles identified, corresponding to five prospective observational studies...
July 10, 2017: Santé Publique: Revue Multidisciplinaire Pour la Recherche et L'action
https://www.readbyqxmd.com/read/28736944/short-term-acipimox-treatment-is-associated-with-decreased-cardiac-parasympathetic-modulation
#10
Esben Thyssen Vestergaard, Simon Lebech Cichosz, Niels Møller, Jens Otto Lunde Jørgensen, Jesper Fleischer
AIM: The nicotinic acid analogue acipimox is an anti-lipolytic agent, which acutely inhibits lipolysis, and suppresses systemic levels of free fatty acids (FFA) and improves insulin sensitivity in obese patients. These effects of acipimox are transient due to a counter-regulatory increase in growth hormone (GH) levels that reverse the anti-lipolytic effect of acipimox. Hypopituitary patients constitute a viable model to study the GH-independent effects of acipimox and the impact of isolated changes in FFA concentrations and insulin sensitivity on parasympathetic nervous activity...
July 23, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28736802/psychotropic-substances-in-house-dusts-a-preliminary-assessment
#11
Angelo Cecinato, Paola Romagnoli, Mattia Perilli, Catia Balducci
Psychotropic substances (PSs) are known to affect air and waters, while scarce attention has been paid to their occurrence in settled dusts although they can reach important concentrations there; moreover, no procedures have been developed for this specific purpose. In this study, a list of PSs (i.e., nicotine, cotinine, caffeine, cocaine, cannabinol, Δ(9)-tetrahydrocannabinol, cannabidiol, amphetamine, heroin, and methadone) were characterized in dusts from Rome and Fiumicino international airport, Italy, and from Ouargla city, Algeria...
July 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28736287/novel-approach-for-selective-reduction-of-nnn-in-cigarette-tobacco-filler-and-mainstream-smoke
#12
M Lusso, I Gunduz, A Kondylis, G Jaccard, L Ruffieux, F Gadani, K Lion, A Adams, W Morris, T Danielson, U Warek, J Strickland
Research conducted during past decades to reduce the level of the tobacco specific nitrosamine N-nitrosonornicotine (NNN) and its precursor nornicotine in tobacco yielded identification of three tobacco genes encoding for cytochrome P450 nicotine demethylases converting nicotine to nornicotine. We carried out trials to investigate the effect of using tobaccos containing three non-functional nicotine demethylase genes on the selective reduction of NNN in cigarette tobacco filler and mainstream smoke. Our results indicate that the presence of non-functional alleles of the three genes reduces the level of nornicotine and NNN in Burley tobacco by 70% compared to the level observed in currently available low converter (LC) Burley tobacco varieties...
July 20, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28736097/alcoholic-pellagra-as-a-cause-of-altered-mental-status-in-the-emergency-department
#13
Sarah Luthe Kyuragi, Ryota Sato
BACKGROUND: Pellagra, which is caused by a deficiency of niacin and tryptophan, the precursor of niacin, is a rare disease in developed countries where alcoholism is a major risk factor due to malnutrition and lack of B vitamins. Although pellagra involves treatable dementia and psychosis, it is often underdiagnosed, especially in developed countries. CASE REPORT: In Japan, a 37-year-old man presented to the emergency department with altered mental status and seizures...
July 20, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28735686/nicotine-pretreatment-reduced-cocaine-induced-cpp-and-its-reinstatement-in-a-sex-and-dose-related-manner-in-adult-c57bl-6j-mice
#14
Prableen K Singh, Kabirullah Lutfy
Previous preclinical studies have shown that nicotine pretreatment during adolescence increases the reinforcing actions of cocaine. However, little is known about the effect of prior nicotine administration on cocaine-induced conditioned place preference (CPP) and its reinstatement in adult mice. Besides, little information is available regarding the role of sex in this cross-talk between nicotine and cocaine. Thus, we examined if nicotine administration during adulthood would differentially alter cocaine-induced CPP, its extinction and reinstatement in male versus female mice and if the dose of nicotine is important in this regard...
July 20, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28735558/nicotinic-receptor-abnormalities-in-the-cerebellar-cortex-of-sudden-unexplained-fetal-and-infant-death-victims-possible-correlation-with-maternal-smoking
#15
Anna M Lavezzi, Stefano Ferrero, Luca Roncati, Francesco Piscioli, Luigi Matturri, Teresa Pusiol
Nicotinic acetylcholine receptors (nAChRs) are cationic channels of the neuronal cell membrane, differentially expressed in the central nervous system which, when activated by endogenous acetylcholine or exogenous nicotine, are able to enhance cholinergic transmission. The aim of this study was to investigate in human perinatal age the immunohistochemical expression of the α7-nAChR subtype, given its involvement in neuronal differentiation and its significant vulnerability to the toxic effects of nicotine...
July 2017: ASN Neuro
https://www.readbyqxmd.com/read/28735272/perceived-nicotine-content-of-reduced-nicotine-content-cigarettes-is-a-correlate-of-perceived-health-risks
#16
Lauren R Pacek, F Joseph McClernon, Rachel L Denlinger-Apte, Melissa Mercincavage, Andrew A Strasser, Sarah S Dermody, Ryan Vandrey, Tracy T Smith, Natalie Nardone, Dorothy K Hatsukami, Joseph S Koopmeiners, Rachel V Kozink, Eric C Donny
BACKGROUND: Reducing cigarette nicotine content may reduce smoking. Studies suggest that smokers believe that nicotine plays a role in smoking-related morbidity. This may lead smokers to assume that reduced nicotine means reduced risk, and attenuate potential positive effects on smoking behaviour. METHODS: Data came from a multisite randomised trial in which smokers were assigned to use cigarettes varying in nicotine content for 6 weeks. We evaluated associations between perceived and actual nicotine content with perceived health risks using linear regression, and associations between perceived nicotine content and perceived health risks with smoking outcomes using linear and logistic regression...
July 22, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28735149/smoking-relapse-situations-among-a-community-recruited-sample-of-spanish-daily-smokers
#17
Bárbara Piñeiro, Ana López-Durán, Carmela Martínez-Vispo, Elena Fernández Del Río, Úrsula Martínez, Rubén Rodríguez-Cano, M Carmen Míguez, Elisardo Becoña
INTRODUCTION: Relapse is a common factor within the behavior change process. However, there is scarce and limited knowledge of smoking relapse situations in population-based samples. The aim of this study was to identify smoking relapse situations among a sample of Spanish relapsers from the general population. METHODS: A sample of 775 relapsers was recruited among the general population using a snowball method. Participants completed a survey including sociodemographic, smoking-related and psychopathology variables...
July 14, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28735078/revisiting-the-role-of-the-insula-and-smoking-cue-reactivity-in-relapse-a-replication-and-extension-of-neuroimaging-findings
#18
A C Janes, J M Gilman, M Radoman, G Pachas, M Fava, A E Evins
INTRODUCTION: The ability to direct smoking cessation treatment based on neuroscientific findings holds incredible promise. However, there is a strong need for consistency across studies to confirm neurobiological targets. While our prior work implicated enhanced insula reactivity to smoking cues in tobacco smoking relapse vulnerability, this finding has not been confirmed. METHOD: Using functional magnetic resonance imaging (fMRI), we evaluated the pre-cessation brain reactivity to smoking vs...
July 12, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28734893/genetic-polymorphisms-in-cyp2a6-are-associated-with-a-risk-of-cigarette-smoking-and-predispose-to-smoking-at-younger-ages
#19
Gloria Pérez-Rubio, Luis Alberto López-Flores, Alejandra Ramírez-Venegas, Valeri Noé-Díaz, Leonor García-Gómez, Enrique Ambrocio-Ortiz, Candelaria Sánchez-Romero, Rafael De Jesús Hernández-Zenteno, Raúl Humberto Sansores, Ramcés Falfán-Valencia
Nicotine is the main component of cigarettes that causes addiction, which is considered a complex disease, and genetic factors have been proposed to be involved in the development of addiction. The CYP2A6 gene encodes the main enzyme responsible for nicotine metabolism. Depending on the study population, different genetic variants of CYP2A6 associated with cigarette smoking have been described. Therefore, we evaluated the possible association between SNPs in CYP2A6 with cigarette smoking and nicotine addiction-related variables in Mexican mestizo smokers...
July 19, 2017: Gene
https://www.readbyqxmd.com/read/28734255/use-of-electronic-cigarettes-in-public-and-private-settings-in-barcelona-spain
#20
Nuria Matilla-Santander, Marcela Fu, Montse Ballbè, Kailey Bunch, Cristina Lidón-Moyano, Juan Carlos Martín-Sánchez, Esteve Fernández, Jose M Martínez-Sánchez
OBJECTIVES: To describe the prevalence of e-cigarette users who use them in selected indoor public and workplaces, and private venues in Barcelona (Spain) in 2015. METHODS: This is a cross-sectional study of a sample of e-cigarette users (≥ 18 years) from Barcelona (n = 600). We calculated the proportion of e-cigarette users who used the device in public and private settings (in the last 30 days). We fit multivariate logistic regression models adjusted for sex and age to calculate the odds ratios (OR) with their 95% confidence intervals (CI) of e-cigarette use by socio-demographic factors, dual use and nicotine-containing e-cigarettes...
July 19, 2017: Environmental Research
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