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https://www.readbyqxmd.com/read/28433649/chronic-nicotine-attenuates-behavioral-and-synaptic-plasticity-impairments-in-a-streptozotocin-model-of-alzheimer-s-disease
#1
Esteves Im, Lopes-Aguiar C, Rossignoli Mt, Ruggiero Rn, Broggini Acs, Bueno-Junior Ls, Kandratavicius L, Monteiro Mr, Romcy-Pereira Rn, Leite Jp
Brain glucose metabolism is altered in sporadic Alzheimer's disease (sAD), whose pathologies are reproduced in rodents by intracerebroventricular (icv) infusion of streptozotocin (STZ) in subdiabetogenic doses. The icv-STZ model also culminates in central cholinergic dysfunctions, which in turn are known to underlie both the sAD cognitive decline, and synaptic plasticity impairments. Considering the cognitive-enhancing potential of chronic nicotine (Nic), we investigated whether it attenuates icv-STZ-induced impairments in recognition memory and synaptic plasticity in a cognition-relevant substrate: the hippocampal CA1-medial prefrontal cortex (mPFC) pathway...
April 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/28433565/inhibitory-effects-of-pine-nodule-extract-and-its-component-sj-2-on-acetylcholine-induced-catecholamine-secretion-and-synthesis-in-bovine-adrenal-medullary-cells
#2
Xiaojia Li, Takafumi Horishita, Yumiko Toyohira, Hui Shao, Jie Bai, Haixia Bo, Xinbo Song, Shin Ishikane, Yukari Yoshinaga, Noriaki Satoh, Masato Tsutsui, Nobuyuki Yanagihara
Extract of pine nodules (matsufushi) formed by bark proliferation on the surface of trees of Pinus tabulaeformis or Pinus massoniana has been used as an analgesic for joint pain, rheumatism, neuralgia, dysmenorrhea and other complaints in Chinese traditional medicine. Here we report the effects of matsufushi extract and its components on catecholamine secretion and synthesis in cultured bovine adrenal medullary cells. We found that matsufushi extract (0.0003-0.005%) and its component, SJ-2 (5-hydroxy-3-methoxy-trans-stilbene) (0...
April 7, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28432340/phenome-wide-association-study-for-cyp2a6-alleles-rs113288603-is-associated-with-hearing-loss-symptoms-in-elderly-smokers
#3
Renato Polimanti, Kevin P Jensen, Joel Gelernter
To identify novel phenotypic associations related to Cytochrome P450 Family 2 Subfamily A Member 6 (CYP2A6), we investigated the human phenome in a total of 11,271 individuals. Initially, we conducted a phenome-wide association study in 3,401 nicotine-exposed elderly subjects considering 358 phenotypic traits. We identified a significant association between CYP2A6 rs113288603 and hearing loss symptoms (p = 5.75 × 10(-5)). No association was observed in a sample of 3,245 nicotine-unexposed individuals from the same discovery cohort, consistent with the conclusion that the finding is related to CYP2A6 involvement in nicotine metabolism...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432210/a-randomised-controlled-trial-of-a-complex-intervention-to-reduce-children-s-exposure-to-secondhand-smoke-in-the-home
#4
Elena Ratschen, Rebecca Thorley, Laura Jones, Magdalena Opazo Breton, Juliette Cook, Ann McNeill, John Britton, Tim Coleman, Sarah Lewis
OBJECTIVES: Exposing children to secondhand tobacco smoke (SHS) causes significant harm and occurs predominantly through smoking by caregivers in the family home. We report a trial of a complex intervention designed to reduce secondhand smoke exposure of children whose primary caregiver feels unable or unwilling to quit smoking. DESIGN: An open-label, parallel, randomised controlled trial. SETTING: Deprived communities in Nottingham City and County, England PARTICIPANTS: Caregivers resident in Nottingham City and County in England who were at least 18 years old, the main caregiver of a child aged under 5 years living in their household, and reported that they were smoking tobacco inside their home...
April 21, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28429843/pooled-analysis-of-three-randomized-double-blind-placebo-controlled-trials-with-rimonabant-for-smoking-cessation
#5
Jason D Robinson, Paul M Cinciripini, Maher Karam-Hage, Henri-Jean Aubin, Lowell C Dale, Raymond Niaura, Robert M Anthenelli
Despite the withdrawal of CB1 antagonists, such as rimonabant, from the market and from active clinical development because of concerns about their side effect profiles, research suggests that the endocannabinoid system may play an important role in modulating nicotine's effects. We report the combined results, using a pooled analysis, of three previously unpublished trials assessing rimonabant as a smoking cessation pharmacotherapy conducted between 2002 and 2004. Smokers (n = 2097) motivated to quit were enrolled in three randomized, double-blind, placebo-controlled trials, STRATUS EU, US, and META, which consisted of a 10-week treatment period with either rimonabant 20 mg (n = 789), 5 mg (n = 518; used in only two of the three studies), or placebo (n = 790), in conjunction with brief counseling...
April 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28429289/the-nature-and-consequences-of-cognitive-deficits-among-tobacco-smokers-with-hiv-a-comparison-to-tobacco-smokers-without-hiv
#6
Joseph D Harrison, Jessica A Dochney, Sonja Blazekovic, Frank Leone, David Metzger, Ian Frank, Robert Gross, Anita Hole, Karam Mounzer, Steven Siegel, Robert A Schnoll, Rebecca L Ashare
HIV-infected smokers lose more years of life to tobacco-related disease than HIV. Since neurocognitive deficits are common among those with HIV and are associated with smoking persistence, these deficits may be a unique barrier to smoking cessation among HIV-infected smokers. Documenting unique differences in and correlates of cognition among HIV-infected smokers is a critical step towards developing a population-specific tobacco cessation treatment. We compared neurocognitive function between HIV-infected (n = 103) and HIV-uninfected smokers (n = 70), accounting for demographic and smoking-related variables...
April 20, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28429068/nicotine-deprivation-elevates-neural-representation-of-smoking-related-cues-in-object-sensitive-visual-cortex-a-proof-of-concept-study
#7
Anne Havermans, Onno C P van Schayck, Eric F P M Vuurman, Wim J Riedel, Job van den Hurk
OBJECTIVE: In the current study, we use functional magnetic resonance imaging (fMRI) and multi-voxel pattern analysis (MVPA) to investigate whether tobacco addiction biases basic visual processing in favour of smoking-related images. We hypothesize that the neural representation of smoking-related stimuli in the lateral occipital complex (LOC) is elevated after a period of nicotine deprivation compared to a satiated state, but that this is not the case for object categories unrelated to smoking...
April 21, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28428763/adhd-lifestyles-and-comorbidities-a-call-for-an-holistic-perspective-from-medical-to-societal-intervening-factors
#8
REVIEW
Simon Weissenberger, Radek Ptacek, Martina Klicperova-Baker, Andreja Erman, Katerina Schonova, Jiri Raboch, Michal Goetz
The review examines Attention Deficit Hyperactivity Disorder (ADHD in its Child and Adult form) and its various presentations (Hyperactive Impulsive, Inattentive, and Combined) with a particular focus on environmental (incl. social factors), lifestyles and comorbidities. It is argued that ADHD is best understood in a holistic and interactive context and a vast empirical literature is presented to illustrate the point: Environmental factors include stress in general as well as exposure to toxins (phthalates, bisphenol A)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28428759/morphological-regeneration-and-functional-recovery-of-neuromuscular-junctions-after-tourniquet-induced-injuries-in-mouse-hindlimb
#9
Huiyin Tu, Dongze Zhang, Ryan M Corrick, Robert L Muelleman, Michael C Wadman, Yu-Long Li
Tourniquet application and its subsequent release cause serious injuries to the skeletal muscle, nerve, and neuromuscular junction (NMJ) due to mechanical compression and ischemia-reperfusion (IR). Monitoring structural and functional repair of the NMJ, nerve, and skeletal muscle after tourniquet-induced injuries is beneficial in exploring potential cellular and molecular mechanisms responsible for tourniquet-induced injuries, and for establishing effective therapeutic interventions. Here, we observed long-term morphological and functional changes of the NMJ in a murine model of tourniquet-induced hindlimb injuries...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28428666/linear-short-term-heart-rate-variability-parameters-of-subjects-tobacco-cigarette-smokers-and-subjects-nonsmokers-in-preoperative-period
#10
Meldijana Omerbegovic
BACKGROUND: Variations of heart cycles reflect complex dynamic cardiocirculatory regulatory systems in humans. Exposure to tobacco from cigarettes has been shown to elicit specific alterations of heart rate variability parameters leading to predominance of sympathetic and decreasing parameters of parasympathetic measures of cardiac autonomic nervous system tone. AIM: The aim of the trial was assessing differences of linear parameters of heart rate variability in subjects with habit of consuming of cigarettes tobacco in regard to subjects who are not consumers of tobacco...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28428175/flavored-e-cigarette-liquids-reduce-proliferation-and-viability-in-the-calu3-airway-epithelial-cell-line
#11
Temperance R Rowell, Steven L Reeber, Shernita L Lee, Rachel A Harris, Rachel C Nethery, Amy H Herring, Gary L Glish, Robert Tarran
E-cigarettes are generally thought of as a safer smoking alternative to traditional cigarettes. However, little is known about the effects of e-cigarette liquids (e-liquids) on the lung. Since over 7,000 unique flavors have been identified for purchase in the USA, our goal was to conduct a screen that would test whether different flavored e-liquids exhibited different toxicant profiles. We tested the effects of 13 different flavored e-liquids (with nicotine and propylene glycol/vegetable glycerin (PG/VG) serving as controls) on a lung epithelial cell line (CALU3)...
April 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28427366/network-analysis-of-global-tobacco-control-collaboration-data-from-the-world-conference-on-tobacco-or-health-wctoh
#12
Scott J Leischow, Janet Okamoto, Scott McIntosh, Deborah J Ossip, Harry A Lando
BACKGROUND: The World Conference on Tobacco or Health (WCTOH) is held every three years to foster communication and collaboration on global tobacco control. Very little is known about the nature of interactions between WCTOH attendees and their linkages to tobacco control organizations, so knowing this information could help improve tobacco control efforts. METHODS: At the 2015 WCTOH, we implemented an online survey to assess barriers to global tobacco control activities, which information sources they use for tobacco control information, and with whom they interact regarding tobacco control...
April 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28426990/concentration-of-perfluorinated-compounds-and-cotinine-in-human-foetal-organs-placenta-and-maternal-plasma
#13
Linn Salto Mamsen, Bo A G Jönsson, Christian H Lindh, Rasmus H Olesen, Agnete Larsen, Erik Ernst, Thomas W Kelsey, Claus Yding Andersen
BACKGROUND: Perfluoroalkyl substances (PFASs) are bio-accumulative pollutants, and prenatal exposure to PFASs is believed to impact human foetal development and may have long-term adverse health effects later in life. Additionally, maternal cigarette smoking may be associated with PFAS levels. Foetal exposure has previously been estimated from umbilical cord plasma, but the actual concentration in foetal organs has never been measured. OBJECTIVES: The concentrations of 5 PFASs and cotinine - the primary metabolite of nicotine - were measured in human foetuses, placentas, and maternal plasma to evaluate to what extent these compounds were transferred from mother to foetus and to determine if the PFAS concentrations were associated with maternal cigarette smoking...
April 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28426638/decreased-central-nervous-system-grey-matter-volume-gmv-in-smokers-affects-cognitive-abilities-a-systematic-review
#14
Martina Vňuková, Radek Ptáček, Jiří Raboch, George B Stefano
Although cigarette smoking is a leading cause of preventable mortality, tobacco is consumed by approximately 22% of the adult population worldwide. Smoking is also a risk factor for cardiovascular disease, affects brain processing, and is a recognized risk factor for Alzheimer disease (AD). Tobacco toxins (e.g., nicotine at high levels) inhaled in smoke may cause disorders resulting in preclinical brain changes. Researchers suggest that there are differences in brain volume between smokers and non-smokers. This review examines these differences in brain grey matter volume (GMV)...
April 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28426355/income-levels-and-response-to-contingency-management-for-smoking-cessation
#15
Carla López-Núñez, Roberto Secades-Villa, Elsa Peña-Suárez, Sergio Fernández-Artamendi, Sara Weidberg
BACKGROUND: Contingency management (CM) has demonstrated its efficacy in treating many drug addictions, including nicotine. However, one of the most commonly perceived limitations with regard to its dissemination into community settings is whether this protocol could be equally effective for treating patients across different income levels. OBJECTIVE: This study aimed to examine whether individuals' income levels affect treatment success in a cognitive behavioral treatment (CBT) that included a voucher-based CM protocol for smoking cessation...
June 7, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28426346/correlates-of-current-smoking-among-adults-served-by-the-public-mental-health-system
#16
Margaret A Swarbrick, Judith A Cook, Lisa A Razzano, Jessica A Jonikas, Ni Gao, Jill Williams, Jay Yudof
OBJECTIVE: As part of a study of health status among 457 adults with diagnostically heterogeneous serious mental illnesses served by the public mental health system in four U.S. states, we assessed predictors of current cigarette smoking. METHODS: We examined bivariate relationships between smoking status and risks for drug and alcohol use disorders, residential setting, parental status, and employment. Finally, we used multivariable logistic regression to predict current smoking, controlling for significant confounds...
April 20, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28425490/urinary-and-fecal-metabonomics-study-of-the-protective-effect-of-chaihu-shu-gan-san-on-antibiotic-induced-gut-microbiota-dysbiosis-in-rats
#17
Meng Yu, Hong-Mei Jia, Chao Zhou, Yong Yang, Li-Li Sun, Zhong-Mei Zou
Accumulating evidence suggests that the gut microbiota dysbiosis and their host metabolic phenotype alteration is an important factor in human disease development. A traditional Chinese herbal formula, Chaihu-Shu-Gan-San (CSGS), has been effectively used in the treatment of various gastrointestinal (GI) disorders. The present study was carried out to investigate whether CSGS modulates the host metabolic phenotype under the condition of gut microbiota dysbiosis. The metabonomics studies of biochemical changes in urine and feces of antibiotic-induced gut microbiota dysbiosis rats after treatment with CSGS were performed using UPLC-Q-TOF/MS...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425312/activation-of-spinal-alpha-7-nicotinic-acetylcholine-receptor-shortens-the-duration-of-remifentanil-induced-postoperative-hyperalgesia-by-upregulating-kcc2-in-the-spinal-dorsal-horn-in-rats
#18
Wei Gu, Wei Zhang, Yishan Lei, Yin Cui, Shuaishuai Chu, Xiaoping Gu, Zhengliang Ma
Background Accumulating evidence has shown that the signal from spinal brain-derived neurotrophic factor/tyrosine receptor kinase B-K(+)-Cl(-) cotransporter-2 plays a critical role in the process of pain hypersensitivity. The activation of alpha-7 nicotinic acetylcholine receptors could have an analgesic effect on remifentanil-induced postoperative hyperalgesia. Nevertheless, whether intrathecal administration of PNU-120596, an alpha-7 nicotinic acetylcholine receptors selective type II positive allosteric modulator, before surgery could affect the duration of remifentanil-induced postoperative hyperalgesia remains unknown, and the effects of alpha-7 nicotinic acetylcholine receptors activation on the brain-derived neurotrophic factor/tyrosine receptor kinase B-K(+)-Cl(-) cotransporter-2 signal in the spinal dorsal horn of rats with remifentanil-induced postoperative hyperalgesia is still enigmatic...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28424107/early-maturation-and-substance-use-across-adolescence-and-young-adulthood-a-longitudinal-study-of-finnish-twins
#19
Jeanne E Savage, Richard J Rose, Lea Pulkkinen, Karri Silventoinen, Tellervo Korhonen, Jaakko Kaprio, Nathan Gillespie, Danielle M Dick
Early maturation, indexed by pubertal development (PD), has been associated with earlier initiation and greater frequency of adolescent substance use, but this relationship may be biased by confounding factors and effects that change across development. Using a population-based Finnish twin sample (N = 3,632 individuals), we conducted twin modeling and multilevel structural equation modeling of the relationship between PD and substance use at ages 12-22. Shared environmental factors contributed to early PD and heavier substance use for females...
April 20, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28422717/c3orf21-ablation-promotes-the-proliferation-of-lung-adenocarcinoma-and-its-mutation-at-the-rs2131877-locus-may-serve-as-a-susceptibility-marker
#20
Litao Yang, Ying Wang, Meiyu Fang, Douhou Deng, Yongjun Zhang
In this study, we investigated the role of C3orf21 gene polymorphism at the rs2131877 locus and its contribution to lung adenocarcinoma pathogenesis. Normal lung and tumor tissue sections were collected from fifteen patients with lung adenocarcinoma for chromosome 3 open reading frame 21 (C3orf21) genotype analysis. In addition, a retrospective analysis was performed to assess the association between C3orf21 genotype and tumor markers from patient samples used in our previously published study. In parallel, we also manipulated C3orf21 gene expression either by overexpressing or ablating it in a MSTO-211H human lung cancer cell line to further understand its contribution to cell proliferation, apoptosis and migration...
April 3, 2017: Oncotarget
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