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https://www.readbyqxmd.com/read/28732318/the-experimental-tobacco-marketplace-ii-substitutability-and-sex-effects-in-dual-electronic-cigarette-and-conventional-cigarette-users
#1
Amanda J Quisenberry, Mikhail N Koffarnus, Leonard H Epstein, Warren K Bickel
AIM: The aim of the current study was to evaluate tobacco product purchasing in the Experimental: Tobacco Marketplace (ETM) among male and female smokers who also use e-cigarettes. We hypothesized a high substitution profile for e-cigarettes and that males would purchase more Snus than females. METHODS: The ETM is an online market used in clinical abuse liability research to mimic real-world purchasing patterns. Tobacco products, including each participant's usual choice of conventional and e-cigarettes, were presented along with a price and description of nicotine content...
July 5, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28729062/pharmacological-activation-of-ampk-inhibits-incision-evoked-mechanical-hypersensitivity-and-the-development-of-hyperalgesic-priming-in-mice
#2
Michael D Burton, Dipti V Tillu, Khadijah Mazhar, Galo L Mejia, Marina N Asiedu, Kufreobong Inyang, Travis Hughes, Bo Lian, Gregory Dussor, Theodore J Price
New therapeutics to manage post-surgical pain are needed to mitigate the liabilities of opioid and other analgesics. Our previous work shows that key modulators of excitability in peripheral nociceptors, such as extracellular signal-regulated kinases (ERK) are inhibited by activation of adenosine monophosphate activated protein kinase (AMPK). We hypothesized that AMPK activation would attenuate acute incision-evoked mechanical hypersensitivity and the development of hyperalgesic priming caused by surgery in mice...
July 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28716530/genetic-association-analysis-of-serotonin-and-signal-transduction-pathways-in-suicide-attempters-from-an-italian-sample-of-psychiatric-patients
#3
Maurizio Pompili, Giovanna Gentile, Catia Scassellati, Cristian Bonvicini, Marco Innamorati, Denise Erbuto, Franco Montebovi, Giuseppe Ducci, Alberto Forte, Eleonora De Pisa, Stefano Ferracuti, Gianluca Serafini, Vincenzo De Luca, Mario Amore, Maurizio Simmaco, Paolo Girardi
Genetic factors have been reported to contribute to the liability of suicide. We aimed to investigate functional polymorphisms in eight genes (serotonin transporter, SLC6A4; receptors, 5HTR1A, 1B, 5HTR2A; Tryptophan Hydroxylase, TPH1, TPH2; Monoamine Oxidase, MAOA and G Protein Subunit Beta 3, GNB3) to investigate their predictive value for suicide. The possible confounding effects of gender and phenotypic patients dissection were also valued. A sample of 111 consecutive psychiatric inpatients was recruited and assessed using specific psychometric instruments...
July 14, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28714051/contributions-of-genes-and-environment-to-developmental-change-in-alcohol-use
#4
E C Long, B Verhulst, S H Aggen, K S Kendler, N A Gillespie
The precise nature of how genetic and environmental risk factors influence changes in alcohol use (AU) over time has not yet been investigated. Therefore, the aim of the present study is to examine the nature of longitudinal changes in these risk factors to AU from mid-adolescence through young adulthood. Using a large sample of male twins, we compared five developmental models that each makes different predictions regarding the longitudinal changes in genetic and environmental risks for AU. The best-fitting model indicated that genetic influences were consistent with a gradual growth in the liability to AU, whereas unique environmental risk factors were consistent with an accumulation of risks across time...
July 17, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/28712933/measuring-drug-absorption-improves-interpretation-of-behavioral-responses-in-a-larval-zebrafish-locomotor-assay-for-predicting-seizure-liability
#5
Steven Cassar, Laura Breidenbach, Amanda Olson, Xin Huang, Heather Britton, Clarissa Woody, Pankajkumar Sancheti, DeAnne Stolarik, Karsten Wicke, Katja Hempel, Bruce LeRoy
INTRODUCTION: Unanticipated effects on the central nervous system are a concern during new drug development. A larval zebrafish locomotor assay can reveal seizure liability of experimental molecules before testing in mammals. Relative absorption of compounds by larvae is lacking in prior reports of such assays; having those data may be valuable for interpreting seizure liability assay performance. METHODS: Twenty-eight reference drugs were tested at multiple dose levels in fish water and analyzed by a blinded investigator...
July 13, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28712365/psychoneurometric-assessment-of-dispositional-liabilities-for-suicidal-behavior-phenotypic-and-etiological-associations
#6
N C Venables, J R Yancey, M D Kramer, B M Hicks, R F Krueger, W G Iacono, T E Joiner, C J Patrick
BACKGROUND: Can core genetic liabilities for suicidal behavior be indexed using psychological and neural indicators combined? The current work addressed this question by examining phenotypic and genetic associations of two biobehavioral traits, threat sensitivity (THT) and disinhibition (DIS) - operationalized as psychoneurometric variables (i.e., composites of psychological-scale and neurophysiological measures) - with suicidal behaviors in a sample of adult twins. METHODS: Participants were 444 identical and fraternal twins recruited from an urban community...
July 17, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28712364/the-structure-of-schizotypal-personality-traits-a-cross-national-study
#7
E Fonseca-Pedrero, M Debbané, J Ortuño-Sierra, R C K Chan, D C Cicero, L C Zhang, C Brenner, E Barkus, R J Linscott, T Kwapil, N Barrantes-Vidal, A Cohen, A Raine, M T Compton, E B Tone, J Suhr, J Muñiz, A Fumero, S Giakoumaki, I Tsaousis, A Preti, M Chmielewski, J Laloyaux, A Mechri, M A Lahmar, V Wuthrich, F Larøi, J C Badcock, A Jablensky
BACKGROUND: Schizotypal traits are considered a phenotypic-indicator of schizotypy, a latent personality organization reflecting a putative liability for psychosis. To date, no previous study has examined the comparability of factorial structures across samples originating from different countries and cultures. The main goal was to evaluate the factorial structure and reliability of the Schizotypal Personality Questionnaire (SPQ) scores by amalgamating data from studies conducted in 12 countries and across 21 sites...
July 17, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28706201/genotypic-variability-based-association-identifies-novel-non-additive-loci-dhcr7-and-irf4-in-sero-negative-rheumatoid-arthritis
#8
Wen-Hua Wei, Sebastien Viatte, Tony R Merriman, Anne Barton, Jane Worthington
Sero-negative rheumatoid arthritis (RA) is a highly heterogeneous disorder with only a few additive loci identified to date. We report a genotypic variability-based genome-wide association study (vGWAS) of six cohorts of sero-negative RA recruited in Europe and the US that were genotyped with the Immunochip. A two-stage approach was used: (1) a mixed model to partition dichotomous phenotypes into an additive component and non-additive residuals on the liability scale and (2) the Levene's test to assess equality of the residual variances across genotype groups...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28699841/co-digestion-of-agricultural-and-municipal-waste-to-produce-energy-and-soil-amendment
#9
Maritza A Macias-Corral, Zohrab A Samani, Adrian T Hanson, Paul A Funk
In agriculture, manure and cotton gin waste are major environmental liabilities. Likewise, grass is an important organic component of municipal waste. These wastes were combined and used as substrates in a two-phase, pilot-scale anaerobic digester to evaluate the potential for biogas (methane) production, waste minimisation, and the digestate value as soil amendment. The anaerobic digestion process did not show signs of inhibition. Biogas production increased during the first 2 weeks of operation, when chemical oxygen demand and volatile fatty acid concentrations and the organic loading rate to the system were high...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28699698/reduced-dosing-and-liability-in-methadone-maintenance-treatment-by-targeting-oestrogen-signal-for-morphine-addiction
#10
Yao-Chang Chiang, Ruey-Yun Wang, Chieh-Liang Huang, Shue-Hwa Chen, Wen-Jing Ho, Hsien-Yuan Lane, Ing-Kang Ho, Hwei-Ting Yang, Wen-Lung Ma
Methadone maintenance treatment (MMT) is the major tapering therapy for morphine addictive patients. There have gender differences reported in response to MMT. This study discovered that the estrogen-response element single nucleotide polymorphism (ERE-SNP; rs16974799, C/T) of cytochrome 2B6 gene (cyp2b6; methadone catabolic enzyme) responded differently to MMT dosing. Oestradiol was associated with high MMT dosing, high enantiomer (R- or S-) of 2-ethylidene-1,5-dimethyl-3,3-dipheny-pyrrolidine (EDDP; methadone metabolite) to methadone ratio and increased drug-seeking behaviour, implicating oestradiol-CYP-EDDP/methadone axis decreasing MMT efficacy...
July 12, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28697302/discovery-and-characterization-of-1h-pyrazol-5-yl-2-phenylacetamides-as-novel-non-urea-containing-girk1-2-potassium-channel-activators
#11
Joshua M Wieting, Anish K Vadukoot, Swagat H Sharma, Kristopher K Abney, Thomas M Bridges, J Scott Daniels, Ryan D Morrison, Kevin Wickman, C David Weaver, Corey R Hopkins
The G protein regulated inwardly rectifying potassium channels (GIRK, Kir3) are a family of inward-rectifying potassium channels, and there is significant evidence supporting the roles of GIRKs in a number of physiological processes and as potential targets for numerous indications. Previously reported urea containing molecules as GIRK1/2 preferring activators have had significant pharmacokinetic liabilities. Here we report a novel series of 1H-pyrazolo-5-yl-2-phenylacetamides in an effort to improve upon the PK properties...
July 11, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28696435/a-direct-test-of-the-diathesis-stress-model-for-depression
#12
L Colodro-Conde, B Couvy-Duchesne, G Zhu, W L Coventry, E M Byrne, S Gordon, M J Wright, G W Montgomery, P A F Madden, S Ripke, L J Eaves, A C Heath, N R Wray, S E Medland, N G Martin
The diathesis-stress theory for depression states that the effects of stress on the depression risk are dependent on the diathesis or vulnerability, implying multiplicative interactive effects on the liability scale. We used polygenic risk scores for major depressive disorder (MDD) calculated from the results of the most recent analysis from the Psychiatric Genomics Consortium as a direct measure of the vulnerability for depression in a sample of 5221 individuals from 3083 families. In the same we also had measures of stressful life events and social support and a depression symptom score, as well as DSM-IV MDD diagnoses for most individuals...
July 11, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28691361/impact-of-childhood-trauma-on-cognitive-profile-in-bipolar-disorder
#13
Esther Jiménez, Brisa Solé, Bárbara Arias, Marina Mitjans, Cristina Varo, María Reinares, Caterina Del Mar Bonnín, Victoria Ruíz, Pilar Alejandra Saiz, M Paz García-Portilla, Patricia Burón, Julio Bobes, Benedikt L Amann, Anabel Martínez-Arán, Carla Torrent, Eduard Vieta, Antoni Benabarre
OBJECTIVES: Bipolar Disorder (BD) is associated with cognitive impairment even during remission periods. Nonetheless, this impairment seems to adjust to different profiles of severity. Our aim was to examine the potential impact of childhood trauma (CT) on cognitive performance and, more specifically, on neurocognitive profile membership. METHODS: Using a data-driven strategy, 113 euthymic bipolar patients were grouped according to their cognitive performance using a hierarchical clustering technique...
July 10, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28689386/surgical-informed-consent-process-in-neurosurgery
#14
REVIEW
Jaechan Park, Hyojin Park
The doctrine of informed consent, as opposed to medical paternalism, is intended to facilitate patient autonomy by allowing patient participation in the medical decision-making process. However, regrettably, the surgical informed consent (SIC) process is invariably underestimated and reduced to a documentary procedure to protect physicians from legal liability. Moreover, residents are rarely trained in the clinical and communicative skills required for the SIC process. Accordingly, to increase professional awareness of the SIC process, a brief history and introduction to the current elements of SIC, the obstacles to patient autonomy and SIC, benefits and drawbacks of SIC, planning of an optimal SIC process, and its application to cases of an unruptured intracranial aneurysm are all presented...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28688296/effects-of-ibudilast-on-oxycodone-induced-analgesia-and-subjective-effects-in-opioid-dependent-volunteers
#15
Z D Cooper, K W Johnson, S K Vosburg, M A Sullivan, J Manubay, D Martinez, J D Jones, P A Saccone, S D Comer
Opioid-induced glial activation is hypothesized to contribute to the development of tolerance to opioid-induced analgesia. This inpatient, double-blind, placebo-controlled, within-subject and between-groups pilot study investigated the dose-dependent effects of ibudilast, a glial cell modulator, on oxycodone-induced analgesia. Opioid-dependent volunteers were maintained on morphine (30mg, PO, QID) for two weeks and received placebo ibudilast (0mg, PO, BID) during the 1st week (days 1-7). On day 8, participants (N=10/group) were randomized to receive ibudilast (20 or 40mg, PO, BID) or placebo for the remainder of the study...
June 17, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28687704/synergistic-cytotoxicity-from-drugs-and-cytokines-in-vitro-as-an-approach-to-classify-drugs-according-to-their-potential-to-cause-idiosyncratic-hepatotoxicity-a-proof-of-concept-study
#16
Ashley R Maiuri, Bronlyn Wassink, Jonathan D Turkus, Anna B Breier, Theresa Lansdell, Gurpreet Kaur, Sarah L Hession, Patricia E Ganey, Robert A Roth
Idiosyncratic, drug-induced liver injury (IDILI) typically occurs in a small fraction of patients and has resulted in removal of otherwise efficacious drugs from the market. Current preclinical testing methods are ineffective in predicting which drug candidates have IDILI liability. Recent results suggest that immune mediators such as tumor necrosis factor-alpha (TNF) and interferon-gamma (IFN) interact with drugs that cause IDILI to kill hepatocytes. This proof-of-concept study was designed to test the hypothesis that drugs can be classified according to their ability to cause IDILI in humans using logistic regression modeling with covariates derived from concentration-response relationships that describe cytotoxic interaction with cytokines...
July 7, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28685622/induction-of-human-cytochrome-p450-3a4-by-the-irreversible-myeloperoxidase-inactivator-pf-06282999-is-mediated-by-the-pregnane-x-receptor
#17
Jamie E Moscovitz, Zhiwu Lin, Nathaniel Johnson, Meihua Tu, Theunis Goosen, Yan Weng, Amit S Kalgutkar
1. 2-(6-(5-Chloro-2-methoxyphenyl)-4-oxo-2-thioxo-3,4-dihydropyrimidin-1(2H)-yl) acetamide (PF-06282999) is a member of the thiouracil class of irreversible inactivators of human myeloperoxidase enzyme and a candidate for the treatment of cardiovascular disease. PF-06282999 is an inducer of CYP3A4 mRNA and midazolam-1'-hydroxylase activity in human hepatocytes, which is consistent with PF-06282999-dose dependent decreases in mean maximal plasma concentrations (Cmax) and area under the plasma concentration time curve (AUC) of midazolam in humans following 14-day treatment with PF-06282999...
July 7, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28680353/patient-and-sample-identification-out-of-the-maze
#18
Giuseppe Lippi, Laura Chiozza, Camilla Mattiuzzi, Mario Plebani
Patient and sample misidentification may cause significant harm or discomfort to the patients, especially when incorrect data is used for performing specific healthcare activities. It is hence obvious that efficient and quality care can only start from accurate patient identification. There are many opportunities for misidentification in healthcare and laboratory medicine, including homonymy, incorrect patient registration, reliance on wrong patient data, mistakes in order entry, collection of biological specimens from wrong patients, inappropriate sample labeling and inaccurate entry or erroneous transmission of test results through the laboratory information system...
April 2017: Journal of Medical Biochemistry
https://www.readbyqxmd.com/read/28678847/comparing-distributions-of-polygenic-risk-scores-of-type-2-diabetes-and-coronary-heart-disease-within-different-populations
#19
Sulev Reisberg, Tatjana Iljasenko, Kristi Läll, Krista Fischer, Jaak Vilo
Polygenic risk scores are gaining more and more attention for estimating genetic risks for liabilities, especially for noncommunicable diseases. They are now calculated using thousands of DNA markers. In this paper, we compare the score distributions of two previously published very large risk score models within different populations. We show that the risk score model together with its risk stratification thresholds, built upon the data of one population, cannot be applied to another population without taking into account the target population's structure...
2017: PloS One
https://www.readbyqxmd.com/read/28677867/thwarted-belongingness-in-relation-to-face-to-face-and-online-interactions
#20
Fallon B Ringer, Michael D Anestis
Suicide is ranked as the tenth leading cause of death for all ages in the United States (Centers for Disease Control and Prevention, 2012). Joiner's (2005) interpersonal theory of suicide stated thwarted belongingness-the feeling of being alienated from others-and perceived burdensomeness-the feeling of being a liability to others-are the primary proximal factors leading to suicidal desire. The current study focused on thwarted belongingness and examined its relationship to face-to-face interactions and online interactions in both an undergraduate and community sample...
July 5, 2017: Suicide & Life-threatening Behavior
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