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https://www.readbyqxmd.com/read/27914771/overview-of-electronic-nicotine-delivery-systems-a-systematic-review
#1
REVIEW
Allison M Glasser, Lauren Collins, Jennifer L Pearson, Haneen Abudayyeh, Raymond S Niaura, David B Abrams, Andrea C Villanti
CONTEXT: Rapid developments in e-cigarettes, or electronic nicotine delivery systems (ENDS), and the evolution of the overall tobacco product marketplace warrant frequent evaluation of the published literature. The purpose of this article is to report updated findings from a comprehensive review of the published scientific literature on ENDS. EVIDENCE ACQUISITION: The authors conducted a systematic review of published empirical research literature on ENDS through May 31, 2016, using a detailed search strategy in the PubMed electronic database, expert review, and additional targeted searches...
November 30, 2016: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27913689/how-is-low-parental-socioeconomic-status-associated-with-future-smoking-and-nicotine-dependence-in-offspring-a-population-based-longitudinal-13-year-follow-up
#2
Willy Pedersen, Tilmann Von Soest
AIMS: Low socioeconomic status (SES) characterizes smoking and nicotine dependence in adult samples. However, less is known about how parental SES is linked to smoking in offspring and the potential mechanisms at work. METHODS: A population-based longitudinal study (n=1380) from Norway was used. Participants were followed from their mid-teens until their late 20s using survey and register data. Data were collected on parental education, parental smoking, educational aspirations and expectations, school grades and school-related conduct problems...
December 1, 2016: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/27913166/dose-dependent-effect-of-donepezil-administration-on-long-term-enhancement-of-visually-evoked-potentials-and-cholinergic-receptor-overexpression-in-rat-visual-cortex
#3
Mira Chamoun, Marianne Groleau, Menakshi Bhat, Elvire Vaucher
Stimulation of the cholinergic system tightly coupled with periods of visual stimulation boosts the processing of specific visual stimuli via muscarinic and nicotinic receptors in terms of intensity, priority and long-term effect. However, it is not known whether more diffuse pharmacological stimulation with donepezil, a cholinesterase inhibitor, is an efficient tool for enhancing visual processing and perception. The goal of the present study was to potentiate cholinergic transmission with donepezil treatment (0...
November 29, 2016: Journal of Physiology, Paris
https://www.readbyqxmd.com/read/27910771/induction-of-flavin-containing-monooxygenase-in-mice-by-oral-administration-of-phellinus-baumii-agaricomycetes-extract
#4
Batbayar Sainkhuu, Beom Su Park, Ha Won Kim
Phellinus baumii is a yellow mushroom long used in alternative medicine in Korea and other central Asian countries. To identify genes affected by a single or 7-day oral administration of a water extract of Ph. Baumii, mouse liver tissue was analyzed using microarrays. The results showed that 8 and 23 genes were upregulated and 3 and 11 genes downregulated more than 3-fold by single and multiple oral administrations of 100 mg/kg PBE, respectively. Among the upregulated genes, the expression of 3 flavin-containing monooxygenase (Fmo) family genes, Fmo2-4, was upregulated in a concentration-dependent manner...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27909988/predicting-the-abuse-liability-of-entactogen-class-new-and-emerging-psychoactive-substances-via-preclinical-models-of-drug-self-administration
#5
Shawn M Aarde, Michael A Taffe
Animal models of drug self-administration are currently the gold standard for making predictions regarding the relative likelihood that a recreational drug substance will lead to continued use and addiction. Such models have been found to have high predictive accuracy and discriminative validity for a number of drug classes including ethanol, nicotine, opioids, and psychostimulants such as cocaine and methamphetamine. Members of the entactogen class of psychostimulants (drugs that produce an "open mind state" including feelings of interpersonal closeness, intimacy and empathy) have been less frequently studied in self-administration models...
December 2, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/27907050/when-is-the-brain-dead-living-like-electrophysiological-responses-and-photon-emissions-from-applications-of-neurotransmitters-in-fixed-post-mortem-human-brains
#6
Michael A Persinger, Nicolas Rouleau, Nirosha J Murugan, Lucas W E Tessaro, Justin N Costa
The structure of the post-mortem human brain can be preserved by immersing the organ within a fixative solution. Once the brain is perfused, cellular and histological features are maintained over extended periods of time. However, functions of the human brain are not assumed to be preserved beyond death and subsequent chemical fixation. Here we present a series of experiments which, together, refute this assumption. Instead, we suggest that chemical preservation of brain structure results in some retained functional capacity...
2016: PloS One
https://www.readbyqxmd.com/read/27905916/study-protocol-a-dose-escalating-phase-2-study-of-oral-lisdexamfetamine-in-adults-with-methamphetamine-dependence
#7
Nadine Ezard, Adrian Dunlop, Brendan Clifford, Raimondo Bruno, Andrew Carr, Alexandra Bissaker, Nicholas Lintzeris
BACKGROUND: The treatment of methamphetamine dependence is a continuing global health problem. Agonist type pharmacotherapies have been used successfully to treat opioid and nicotine dependence and are being studied for the treatment of methamphetamine dependence. One potential candidate is lisdexamfetamine, a pro-drug for dexamphetamine, which has a longer lasting therapeutic action with a lowered abuse potential. The purpose of this study is to determine the safety of lisdexamfetamine in this population at doses higher than those currently approved for attention deficit hyperactivity disorder or binge eating disorder...
December 1, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27903957/medicalisation-smoking-and-e-cigarettes-evidence-and-implications
#8
Kylie Morphett, Adrian Carter, Wayne Hall, Coral Gartner
There is debate in the tobacco control literature about the value of a medical model in reducing smoking-related harm. The variety of medical treatments for smoking cessation has increased, health professionals are encouraged to use them to assist smoking cessation and tobacco dependence is being described as a 'chronic disease'. Some critics suggest that the medicalisation of smoking undermines the tobacco industry's responsibility for the harms of smoking. Others worry that it will lead smokers to deny personal responsibility for cessation, create beliefs in 'magic bullets' for smoking cessation, or erode smokers' confidence in their ability to quit...
November 30, 2016: Tobacco Control
https://www.readbyqxmd.com/read/27901240/prevalence-of-chronic-spinal-pain-and-identification-of-associated-factors-in-a-sample-of-the-population-of-s%C3%A3-o-paulo-brazil-cross-sectional-study
#9
Jidiene Dylese Presecatan Depintor, Eduardo Sawaya Botelho Bracher, Dayane Maia Costa Cabral, José Eluf-Neto
CONTEXT AND OBJECTIVE: Chronic spinal pain, especially low-back pain and neck pain, is a leading cause of years of life with disability. The aim of the present study was to estimate the prevalence of chronic spinal pain among individuals aged 15 years or older and to identify the factors associated with it. DESIGN AND SETTING: Cross-sectional epidemiological study on a sample of the population of the city of São Paulo. METHOD: Participants were selected using random probabilistic sampling and data were collected via face-to-face interviews...
September 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/27901080/block-of-nicotinic-acetylcholine-receptors-by-philanthotoxins-is-strongly-dependent-on-their-subunit-composition
#10
Hamid S Kachel, Rohit N Patel, Henrik Franzyk, Ian R Mellor
Philanthotoxin-433 (PhTX-433) is an active component of the venom from the Egyptian digger wasp, Philanthus triangulum. PhTX-433 inhibits several excitatory ligand-gated ion channels, and to improve selectivity two synthetic analogues, PhTX-343 and PhTX-12, were developed. Previous work showed a 22-fold selectivity of PhTX-12 over PhTX-343 for embryonic muscle-type nicotinic acetylcholine receptors (nAChRs) in TE671 cells. We investigated their inhibition of different neuronal nAChR subunit combinations as well as of embryonic muscle receptors expressed in Xenopus oocytes...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27898458/smoking-status-and-opioid-related-problems-and-concerns-among-men-and-women-on-chronic-opioid-therapy
#11
Kelly C Young-Wolff, Daniella Klebaner, Constance Weisner, Michael Von Korff, Cynthia I Campbell
OBJECTIVES: Smokers on chronic opioid therapy for non-cancer pain use prescription opioids at higher dosages and are at increased risk for opioid misuse and dependence relative to non-smokers. The current study aims to assess whether smoking is associated with problems and concerns with chronic opioid therapy from the perspective of the patient. METHODS: In a large sample (N=972) of adult patients prescribed opioids for chronic noncancer pain, we examined sex-specific associations between smoking status and patient perceptions of problems and concerns with chronic opioid therapy using regression analyses, adjusting for covariates...
November 28, 2016: Clinical Journal of Pain
https://www.readbyqxmd.com/read/27895161/the-e-loop-of-the-transmitter-binding-site-is-a-key-determinant-of-the-modulatory-effects-of-physostigmine-on-neuronal-nicotinic-%C3%AE-4%C3%AE-2-receptors
#12
Xiaochun Jin, Megan M McCollum, Allison L Germann, Gustav Akk, Joseph H Steinbach
Physostigmine is a well-known inhibitor of acetylcholinesterase, which can also activate, potentiate and inhibit acetylcholine receptors, including neuronal nicotinic receptors comprising α4 and β2 subunits. We have found that the two stoichiometric forms of this receptor differ in the effects of physostigmine. The form containing 3 copies of α4 and 2 of β2 was potentiated at low concentrations of ACh and physostigmine, while the form containing 2 copies of α4 and 3 of β2 was inhibited. Chimeric constructs of subunits indicated that the presence of inhibition or potentiation depended on the source of the extracellular ligand-binding domain of the subunit...
November 28, 2016: Molecular Pharmacology
https://www.readbyqxmd.com/read/27894160/cue-induced-nicotine-seeking-behavior-after-withdrawal-with-or-without-extinction-in-rats
#13
Athina Markou, Jie Li, Kearny Tse, Xia Li
Exposure to smoking-associated environmental cues during smoke cessation elicits self-reported urge/craving to smoke, which precipitates relapse even after prolonged abstinence. Incubation of cue-induced cigarettes craving during abstinence has been observed in human smokers recently. The present studies assessed cue-induced nicotine-seeking behavior under different withdrawal conditions in rats with a history of nicotine self-administration. We found that non-reinforced operant responding during cue-induced nicotine seeking after different periods of withdrawal from nicotine exhibited an inverted U-shaped curve, with higher levels of responding after 7-21 days of withdrawal than those after 1-day withdrawal...
November 28, 2016: Addiction Biology
https://www.readbyqxmd.com/read/27893843/comparative-effectiveness-of-smoking-cessation-medications-a-national-prospective-cohort-from-taiwan
#14
Po-Yin Chang, Po-Ching Lo, Hui-Chin Chang, Kuang-Chieh Hsueh, Yi-Wen Tsai
BACKGROUND AND OBJECTIVE: Relative effectiveness of smoking cessation medications-varenicline, bupropion and nicotine replacement therapy (NRT)-remains unclear among smokers in real-world settings. Evidence in females and smokers with light/moderate nicotine dependence is particularly insufficient. This study compared the effectiveness of varenicline, bupropion or NRT gum relative to NRT patch, in achieving abstinence among recent quitters. METHODS: In a national smoking cessation program in Taiwan (2012-2015), a cohort of 11,968 participants received varenicline (n = 5,052), bupropion (n = 823), NRT gum (n = 1944) or NRT patch (n = 4,149)...
2016: PloS One
https://www.readbyqxmd.com/read/27891376/smokeless-tobacco-and-stroke-a-clinico-epidemiological-follow-up-study-in-a-tertiary-care-hospital
#15
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/27890648/bupropion-sustained-release-for-pregnant-smokers-a%C3%A2-randomized-placebo-controlled-trial
#16
Tatiana N Nanovskaya, Cheryl Oncken, Valentina M Fokina, Richard S Feinn, Shannon M Clark, Holly West, Sunil K Jain, Mahmoud S Ahmed, Gary D V Hankins
BACKGROUND: Bupropion is used to treat depression during pregnancy. However, its usefulness as a smoking cessation aid for pregnant women is not fully known. OBJECTIVE: The objective of the study was to evaluate the preliminary efficacy of bupropion sustained release for smoking cessation during pregnancy. STUDY DESIGN: We conducted a randomized, prospective, double-blind, placebo-controlled, pilot trial. Pregnant women who smoked daily received individualized behavior counseling and were randomly assigned to a 12 week, twice-a-day treatment with 150 mg bupropion sustained release or placebo...
November 25, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27890353/anxiety-and-nicotine-dependence-emerging-role-of-the-habenulo-interpeduncular-axis
#17
REVIEW
Susanna Molas, Steven R DeGroot, Rubing Zhao-Shea, Andrew R Tapper
While innovative modern neuroscience approaches have aided in discerning brain circuitry underlying negative emotional behaviors including fear and anxiety responses, how these circuits are recruited in normal and pathological conditions remains poorly understood. Recently, genetic tools that selectively manipulate single neuronal populations have uncovered an understudied circuit, the medial habenula (mHb)-interpeduncular (IPN) axis, that modulates basal negative emotional responses. Interestingly, the mHb-IPN pathway also represents an essential circuit that signals heightened anxiety induced by nicotine withdrawal...
November 24, 2016: Trends in Pharmacological Sciences
https://www.readbyqxmd.com/read/27888969/smoking-behaviors-and-medical-co-morbidities-in-patients-with-mental-illnesses
#18
Peggy El-Mallakh, Danielle McPeak, Milan Khara, Chizimuzo T Okoli
Correlations among smoking behaviors and co-morbid medical illnesses were examined among 982 smokers with mental illnesses enrolled in a smoking cessation program within Mental Health and Addictions Services in Vancouver, Canada. Significant correlates among individuals with psychotic disorders included associations between a history of emphysema/chronic obstructive pulmonary (COPD) disease and cigarettes smoked per day (r's=.35, p≤.01), Confidence in quitting (r's=-.33, p≤.01), and nicotine dependence (r's=...
December 2016: Archives of Psychiatric Nursing
https://www.readbyqxmd.com/read/27886263/nicotinic-and-opioid-receptor-regulation-of-striatal-dopamine-d2-receptor-mediated-transmission
#19
Aphroditi A Mamaligas, Yuan Cai, Christopher P Ford
In addition to dopamine neuron firing, cholinergic interneurons (ChIs) regulate dopamine release in the striatum via presynaptic nicotinic receptors (nAChRs) on dopamine axon terminals. Synchronous activity of ChIs is necessary to evoke dopamine release through this pathway. The frequency-dependence of disynaptic nicotinic modulation has led to the hypothesis that nAChRs act as a high-pass filter in the dopaminergic microcircuit. Here, we used optogenetics to selectively stimulate either ChIs or dopamine terminals directly in the striatum...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27884089/an-animal-model-of-effects-of-nicotine-exposure-on-endometrial-receptivity-and-embryo-implantation-in-pregnancy
#20
Yaşam Kemal Akpak, Yasemin Çekmez, Aslı Erdoğan Çakır, Nilay Karaca, Gonca Batmaz, Serdar Gülşen, Esra Tuştaş Haberal
OBJECTIVE: This study aims at evaluating the endometrial receptivity in uterus of pregnant rats exposed to nicotine via examination of integrin expression by immunohistochemical effect. METHODS: In this study, 16 healthy pregnant rats were divided into two groups of control and study groups each comprising 8 rats. The rats randomised to study group were given a certain amount of nicotine before and during the pregnancy. Integrin expression was detected in uterus of all rats by immunohistochemical staining...
November 24, 2016: Journal of Maternal-fetal & Neonatal Medicine
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