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Varenicline

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https://www.readbyqxmd.com/read/28525877/functional-network-connectivity-predicts-treatment-outcome-during-treatment-of-nicotine-use-disorder
#1
Claire E Wilcox, Vince D Calhoun, Srinivas Rachakonda, Eric D Claus, Rae A Littlewood, Jessica Mickey, Pamela B Arenella, Kent E Hutchison
Altered resting state functional connectivity (rsFC) and functional network connectivity (FNC), which is a measure of coherence between brain networks, may be associated with nicotine use disorder (NUD). We hypothesized that higher connectivity between insula and 1) dorsal anterior cingulate cortex (dACC) and 2) dorsolateral prefrontal cortex (dlPFC) would predict better treatment outcomes. We also performed an exploratory analysis of the associations between FNC values between additional key frontal and striatal regions and treatment outcomes...
April 30, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28522745/randomised-controlled-trial-of-stand-alone-tailored-emails-for-smoking-cessation
#2
J Lee Westmaas, Jeuneviette Bontemps-Jones, Peter S Hendricks, Jihye Kim, Lorien C Abroms
INTRODUCTION: Digital technology has created opportunities for delivering smoking cessation assistance at the population level. However, the efficacy of sending multiple, automated, tailored emails providing motivation, support and information for quitting is unknown. METHODS: Smokers planning to quit (n=1070) were randomly assigned to (1) 27 tailored cessation emails (deluxe email group (DEG)), (2) 3 to 4 tailored emails with links to downloadable booklets (basic email group (BEG)) or (3) a single non-tailored email (single email group (SEG))...
May 18, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28521015/changes-in-alcohol-consumption-during-a-stop-smoking-attempt-and-differences-between-smokers-using-nicotine-replacement-and-smokers-using-varenicline
#3
Dunja Przulj, Peter Hajek, Sarah Snuggs, Hayden McRobbie
Introduction: Little is known about effects of smoking cessation on alcohol consumption. Varenicline reduces enjoyment of smoking and cigarette consumption and may also reduce enjoyment and consumption of alcohol. We conducted the first prospective examination of the effects of stopping smoking on alcohol enjoyment and consumption, and compared clients using varenicline and clients using nicotine replacement treatment (NRT). Methods: Audit of records from clients undergoing routine smoking cessation treatment inthree stop-smoking services in London, UK...
May 17, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28505296/varenicline-is-associated-with-a-modest-limitation-in-weight-gain-in-smokers-after-smoking-cessation-a-meta-analysis
#4
Yanxin Sun, Wenhou Duan, Xin Meng, Huijie Li, Chongqi Jia
Objective: To assess the effect of treatment on limiting weight gain in abstainers using and not using varenicline and during the nontreatment phase. Methods: The PubMed, Medline, EMBASE and Cochrane Library databases were searched to identify relevant studies published in English or Chinese. A meta-analysis was performed to calculate pooled weighted mean differences (WMDs) in weight gain in smokers after smoking cessation between varenicline and control groups and their corresponding 95% CIs...
May 15, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/28500373/effects-of-varenicline-versus-transdermal-nicotine-replacement-therapy-on-cigarette-demand-on-quit-day-in-individuals-with-substance-use-disorders
#5
Cara M Murphy, James MacKillop, Rosemarie A Martin, Jennifer W Tidey, Suzanne M Colby, Damaris J Rohsenow
RATIONALE: Cigarette demand is a behavioral economic measure of the relative value of cigarettes. Decreasing the value of cigarette reinforcement may help with quitting smoking. OBJECTIVES: This study aimed to evaluate the effects of initial use of varenicline (VAR) versus nicotine replacement therapy (NRT) on demand for cigarettes on quit day among smokers with substance use disorders (SUD) and to determine whether reduced demand was associated with subsequent abstinence from smoking at 1 and 3 months...
May 13, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28498504/varenicline-versus-nicotine-patch-with-brief-advice-for-smokers-with-substance-use-disorders-with-or-without-depression-effects-on-smoking-substance-use-and-depressive-symptoms
#6
Damaris J Rohsenow, Jennifer W Tidey, Rosemarie A Martin, Suzanne M Colby, Robert M Swift, Lorenzo Leggio, Peter M Monti
AIMS: Varenicline was compared with transdermal nicotine (NRT) for smokers with current substance use disorders (SUD) for effects on 3-month smoking abstinence (primary outcome) and, secondarily, on 3 and 6 month abstinence while adjusting for medication adherence, and on additional smoking and substance use outcomes. Moderation by major depressive disorder history (MDD) and adherence were investigated. DESIGN: Double-blind double-placebo controlled randomized design, stratifying by MDD, gender and nicotine dependence, with 3 and 6 months follow up...
May 12, 2017: Addiction
https://www.readbyqxmd.com/read/28476276/the-clinical-utility-of-the-medication-adherence-questionnaire-maq-in-an-alcohol-pharmacotherapy-trial
#7
A Zweben, M E Piepmeier, L Fucito, S S O'Malley
BACKGROUND: Medication nonadherence is a ubiquitous problem in pharmacology treatment for alcohol use disorders. Unintentional and purposeful nonadherence as measured by the Medication Adherence Questionnaire (MAQ) has been shown to predict problems with medication adherence; however, feedback from the MAQ has never been incorporated into a behavioral intervention to facilitate medication adherence. We assessed the integration of the MAQ into medical management (MM), a counseling approach frequently employed in conjunction with alcohol pharmacotherapy, to determine whether prior patterns of nonadherence could be addressed effectively to promote medication adherence...
June 2017: Journal of Substance Abuse Treatment
https://www.readbyqxmd.com/read/28473506/cardiovascular-and-neuropsychiatric-risks-of-varenicline-and-bupropion-in-smokers-with-chronic-obstructive-pulmonary-disease
#8
Daniel Kotz, Wolfgang Viechtbauer, Colin R Simpson, Onno C P van Schayck, Robert West, Aziz Sheikh
BACKGROUND: Varenicline and bupropion are effective smoking cessation treatments, but there are concerns about their safety in smokers with COPD. OBJECTIVE: To investigate whether varenicline and bupropion are associated with serious adverse cardiovascular and neuropsychiatric events in smokers with COPD. METHODS: In a retrospective cohort study, we used data from 14 350 patients with COPD included in the QResearch database, which holds data from 753 National Health Service general practices across England...
May 4, 2017: Thorax
https://www.readbyqxmd.com/read/28469204/compromised-neuroplasticity-in-cigarette-smokers-under-nicotine-withdrawal-is-restituted-by-the-nicotinic-%C3%AE-4%C3%AE-2-receptor-partial-agonist-varenicline
#9
G Batsikadze, W Paulus, A Hasan, J Grundey, M-F Kuo, M A Nitsche
Nicotine modulates neuroplasticity and improves cognitive functions in animals and humans. In the brain of smoking individuals, calcium-dependent plasticity induced by non-invasive brain stimulation methods such as transcranial direct current stimulation (tDCS) and paired associative stimulation (PAS) is impaired by nicotine withdrawal, but partially re-established after nicotine re-administration. In order to investigate the underlying mechanism further, we tested the impact of the α4β2-nicotinic receptor partial agonist varenicline on focal and non-focal plasticity in smokers during nicotine withdrawal, induced by PAS and tDCS, respectively...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28454746/involvement-of-proton-coupled-organic-cation-antiporter-in-varenicline-transport-at-blood-brain-barrier-of-rats-and-in-human-brain-capillary-endothelial-cells
#10
Toshiki Kurosawa, Kei Higuchi, Takashi Okura, Kazumasa Kobayashi, Hiroyuki Kusuhara, Yoshiharu Deguchi
Varenicline is a selective partial α4β2 nicotinic acetylcholine receptor agonist, which is used to help achieve smoking cessation. Here, we investigated varenicline transport at the blood-brain barrier (BBB) by means of in vivo microdialysis, in situ brain perfusion, and brain efflux index (BEI) measurements in rats and in vitro uptake studies in human brain capillary endothelial (hCMEC/D3) cells. Microdialysis demonstrated that varenicline is actively transported from blood to brain in rats. Blood-to-brain uptake transport of varenicline, as measured by the in situ brain perfusion technique, was strongly inhibited by diphenhydramine, a potent inhibitor of proton-coupled organic cation (H(+)/OC) antiporter...
April 25, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28449281/effect-of-0-5%C3%A2-mg-vs-1%C3%A2-mg-varenicline-for-smoking-cessation-a-randomized-controlled-trial
#11
Natalia Fouz-Rosón, Teodoro Montemayor-Rubio, Virginia Almadana-Pacheco, Soledad Montserrat-García, Ana Paulina Gómez-Bastero, Concepción Romero-Muñoz, Juan Polo-Padillo
AIMS: Varenicline is used in smoking cessation. The aims of the trial were to test for differences between standard 1 mg and 0.5 mg dose (both twice daily during 8 weeks) in 1) abstinence 2) adherence 3) side effects. DESIGN: Open-label randomized parallel-group controlled trial with 1-year follow-up. All those randomized were included in the final sample using an intention-to-treat (ITT) approach. SETTING: Stop-Smoking Clinic of the Virgen Macarena University Hospital in Seville, Spain...
April 27, 2017: Addiction
https://www.readbyqxmd.com/read/28420644/smokers-and-postcessation-weight-gain-after-acute-coronary-syndrome
#12
Payam Dehghani, Bettina Habib, Sarah B Windle, Nathalie Roy, Wayne Old, François R Grondin, Iqbal Bata, Ayman Iskander, Claude Lauzon, Nalin Srivastava, Adam Clarke, Daniel Cassavar, Danielle Dion, Herbert Haught, Shamir R Mehta, Jean-François Baril, Charles Lambert, Mina Madan, Beth L Abramson, Mark J Eisenberg
BACKGROUND: Smoking cessation and weight management are recommended after acute coronary syndrome (ACS); however, little is known about the effects of smoking cessation on weight change after ACS. We aimed to assess the effect of smoking cessation after ACS on weight over a 12-month follow-up period. METHODS AND RESULTS: Data were prospectively collected from the EVITA (Evaluation of Varenicline in Smoking Cessation for Patients Post-Acute Coronary Syndrome) trial...
April 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28420395/characteristics-of-first-time-varenicline-users-a-cross-sectional-study-in-finnish-quitters
#13
Hanna E Tervonen, Juha H O Turunen, Christine L Baker, Juha Laine, Kari Linden
BACKGROUND: Varenicline is an efficacious medicine for smoking cessation (SC) but little is known about the characteristics of varenicline users. This study examined the characteristics of first-time (naïve) varenicline users in Finland and compared those who had previously used SC pharmacotherapy to those who were trying SC pharmacotherapy for the first time. METHODS: A cross-sectional survey was conducted in Finnish community pharmacies between February 2014 and January 2015...
April 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28414583/improved-depressive-symptoms-in-adults-with-schizophrenia-during-a-smoking-cessation-attempt-with-varenicline-and-behavioral-therapy
#14
Corinne Cather, Susanne Hoeppner, Gladys Pachas, Sarah Pratt, Eric Achtyes, Kristina M Cieslak, A Eden Evins
OBJECTIVE: Smoking prevalence rates are elevated in individuals with schizophrenia spectrum disorders (SSD) compared with the general population, with attendant disproportionate smoking-related morbidity and mortality. Pharmacotherapies that improve abstinence rates in this population are underutilized, partly due to concerns about neuropsychiatric safety, particularly for those with comorbid depression or prior suicide attempt. Prospective assessment of the psychiatric safety profile of varenicline in those with SSD is needed...
April 17, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28403462/medicaid-coverage-of-smoking-cessation-counseling-and-medication-is-underutilized-for-pregnant-women
#15
Taneisha S Scheuermann, Kimber P Richter, Lisette T Jacobson, Theresa I Shireman
Introduction: Policies to promote smoking cessation among Medicaid-insured pregnant women have the potential to assist a significant proportion of pregnant smokers. In 2010, Kansas Medicaid began covering smoking cessation counseling for pregnant smokers. Our aim was to evaluate the use of smoking cessation benefits provided to pregnant women as a result of the Kansas Medicaid policy change that provided reimbursement for physician-provided smoking cessation counseling. Methods: We examined Kansas Medicaid claims data to estimate rates of delivery of smoking cessation treatment to Medicaid-insured pregnant women in Kansas from fiscal year 2010 through 2013...
May 1, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28403383/neural-signatures-of-cognitive-flexibility-and-reward-sensitivity-following-nicotinic-receptor-stimulation-in-dependent-smokers-a-randomized-trial
#16
Elise Lesage, Sarah E Aronson, Matthew T Sutherland, Thomas J Ross, Betty Jo Salmeron, Elliot A Stein
Importance: Withdrawal from nicotine is an important contributor to smoking relapse. Understanding how reward-based decision making is affected by abstinence and by pharmacotherapies such as nicotine replacement therapy and varenicline tartrate may aid cessation treatment. Objective: To independently assess the effects of nicotine dependence and stimulation of the nicotinic acetylcholine receptor on the ability to interpret valence information (reward sensitivity) and subsequently alter behavior as reward contingencies change (cognitive flexibility) in a probabilistic reversal learning task...
April 12, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28398582/how-to-compare-instrumental-variable-and-conventional-regression-analyses-using-negative-controls-and-bias-plots
#17
Neil M Davies, Kyla H Thomas, Amy E Taylor, Gemma M J Taylor, Richard M Martin, Marcus R Munafò, Frank Windmeijer
There is increasing interest in the use of instrumental variable analysis to overcome unmeasured confounding in observational pharmacoepidemiological studies. This is partly because instrumental variable analyses are potentially less biased than conventional regression analyses. However, instrumental variable analyses are less precise, and regulators and clinicians find it difficult to interpret conflicting evidence from instrumental variable compared with conventional regression analyses. In this paper, we describe three techniques to assess which approach (instrumental variable versus conventional regression analyses) is least biased...
April 7, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28391535/discriminative-stimulus-properties-of-s-nicotine-a-drug-for-all-seasons
#18
John A Rosecrans, Richard Young
S(-)-Nicotine is the major pharmacologically active substance in tobacco and can function as an effective discriminative stimulus in both experimental animals and humans. In this model, subjects must detect and communicate the nicotine drug state versus the non-drug state. This review describes the usefulness of the procedure to study nicotine, presents a general overview of the model, and provides some relevant methodological details for the establishment of this drug as a stimulus. Once established, the (-)-nicotine stimulus can be characterized for dose response and time course effects...
April 9, 2017: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28376818/smokers-making-a-quit-attempt-using-e-cigarettes-with-or-without-nicotine-or-prescription-nicotine-replacement-therapy-impact-on-cardiovascular-function-isme-nrt-a-study-protocol
#19
Markos Klonizakis, Helen Crank, Anil Gumber, Leonie S Brose
BACKGROUND: The estimated number of cigarette smokers in the world is 1.3 billion, expected to rise to 1.7 billion by 2025, with 10 million smokers living in the U.K. Smoking is the leading, preventable death-cause worldwide, being responsible for almost 650,000 deaths in the E.U. annually. A combination of pharmacological interventions, including nicotine replacement therapy, bupropion and varenicline, and behavioural support is the most effective approach to smoking cessation. However, even the best methods have high relapse rates of approximately 75% within 6 months...
April 4, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28367632/subtle-differences-among-5-ht3ac-5-ht3ad-and-5-ht3ae-receptors-are-revealed-by-partial-agonists
#20
Kerry L Price, Yuri Hirayama, Sarah C R Lummis
5-HT3 receptors are members of the Cys-loop family of ligand-gated ion channels, and, like most members of this family, there are multiple subunits that can contribute to functional pentameric receptors. 5-HT3A and 5-HT3AB receptors have been extensively characterized, but there are few studies on 5-HT3AC, 5-HT3AD, and 5-HT3AE receptors. Here we explore the properties of a range of partial agonists at 5-HT3AC, 5-HT3AD, and 5-HT3AE receptors following expression in Xenopus oocytes. The data show that the characteristics of receptor activation differ in the different heteromeric receptors when they are challenged with 5-HT, m-chlorophenylbiguanide (mCPBG), varenicline, 5-fluorotryptamine (5-FT), or thymol...
April 3, 2017: ACS Chemical Neuroscience
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