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https://www.readbyqxmd.com/read/29684892/effects-of-anxiety-and-mood-disorders-on-craving-and-substance-use-among-patients-with-substance-use-disorder-an-ecological-momentary-assessment-study
#1
Melina Fatseas, Fuschia Serre, Joel Swendsen, Marc Auriacombe
BACKGROUND: Despite recognition of the negative impact of psychiatric comorbidity on addictive disorders, the mechanisms underlying this association remain poorly understood. The present investigation applied mobile technologies to examine the effect of comorbid mood or anxiety disorders on craving intensity and substance use within the natural conditions of daily life. METHODS: A total of 159 participants were recruited from a French outpatient addiction clinic and completed two weeks of computerized ambulatory monitoring of daily life experiences using Ecological Momentary Assessment (EMA)...
April 12, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29684749/aqueous-polythiophene-electrosynthesis-a-new-route-to-an-efficient-electrode-coupling-of-pqq-dependent-glucose-dehydrogenase-for-sensing-and-bioenergetic-applications
#2
Giovanni Fusco, Gero Göbel, Robertino Zanoni, Maria Paola Bracciale, Gabriele Favero, Franco Mazzei, Fred Lisdat
In this study, polythiophene copolymers have been used as modifier for electrode surfaces in order to allow the immobilization of active pyrroloquinoline quinone dependent glucose dehydrogenase (PQQ-GDH) and to simultaneously improve the direct electrical connection of the enzyme with the electrode. Polymer films are electrosynthesized in aqueous solution without the need of surfactants onto carbon nanotubes modified gold electrodes from mixtures of 3-thiopheneacetic acid (ThCH2 CO2 H) and 3-methoxythiophene (ThOCH3 ) using a potentiostatic pulse method...
April 7, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29683847/psychoactive-substances-alcohol-and-tobacco-consumption-in-hiv-infected-outpatients
#3
Jean-Marc Jacquet, Hélène Peyriere, Alain Makinson, Marianne Peries, Nicolas Nagot, Hélène Donnadieu-Rigole, Jacques Reynes
OBJECTIVES: To assess the alcohol consumption, tobacco addiction and psychoactive substance use (PSU) of people living with HIV (PLHIV). DESIGN: Cross-sectional study in an HIV outpatient unit. METHODS: Autoquestionnaire systematically proposed to all patients during their usual clinical care visit during a 6-months period, for alcohol (AUDIT test), tobacco (Short Fagerstrom Test) and PSU (ASSIST V3.0 test). RESULTS: Of 1334 distributed questionnaires, 1018 PLHIV responded: 76...
April 19, 2018: AIDS
https://www.readbyqxmd.com/read/29682661/environment-and-human-friendly-colored-materials-prepared-using-black-and-white-components
#4
Yukikazu Takeoka
Our lives in the present age are full of colorful items. However, when many coloring materials cannot be used due to environmental concerns, this colorful life that has been constructed will be diminished. Maintaining our rich lifestyle necessitates the development of technologies that can make safe and secure color materials from materials with less burden on people and the environment. Herein, the author reveals that structural colored materials with little angle dependence can be prepared using various materials with short-range order in the refractive index, which is comparable to the wavelength of visible light, and with the aid of a black substance...
April 23, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29682627/a-complier-average-causal-effect-analysis-of-the-stimulant-reduction-intervention-using-dosed-exercise-study
#5
Thomas Carmody, Tracy L Greer, Robrina Walker, Chad D Rethorst, Madhukar H Trivedi
Objective: Exercise is a promising treatment for substance use disorders, yet an intention-to-treat analysis of a large, multi-site study found no reduction in stimulant use for exercise versus health education. Exercise adherence was sub-optimal; therefore, secondary post-hoc complier average causal effects (CACE) analysis was conducted to determine the potential effectiveness of adequately dosed exercise. Method: The STimulant use Reduction Intervention using Dosed Exercise study was a randomized controlled trial comparing a 12 kcal/kg/week (KKW) exercise dose versus a health education control conducted at nine residential substance use treatment settings across the U...
June 2018: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29681865/quercetin-increases-muc2-and-muc5ac-gene-expression-and-secretion-in-intestinal-goblet-cell-like-ls174t-via-plc-pkc%C3%AE-erk1-2-pathway
#6
Simona Damiano, Anna Sasso, Bruna De Felice, Ilaria Di Gregorio, Giuliana La Rosa, Gelsi A Lupoli, Anna Belfiore, Paolo Mondola, Mariarosaria Santillo
The main dietary flavonoid quercetin, is known to preserve the integrity of gastrointestinal barrier and to have anti-inflammatory, anti-cancer, anti-fibrotic, and other beneficial properties. Many of the biological effects of quercetin appear to be associated to the modulation of cell signaling pathways, rather than to its antioxidant activity. In spite of the large number of data available on the molecular and cellular mechanisms by which quercetin exerts its biological effects, including protection of intestinal barrier function, there is a lack of data about the role of this substance on the expression and/or the secretion of mucins released by intestinal goblet cells...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29680677/nicotine-dependence-predicts-cannabis-use-disorder-symptoms-among-adolescents-and-young-adults
#7
Lisa Dierker, Jessica Braymiller, Jennifer Rose, Renee Goodwin, Arielle Selya
PURPOSE: We evaluate if cigarette smoking and/or nicotine dependence predicts cannabis use disorder symptoms among adolescent and young adult cannabis users and whether the relationships differ based on frequency of cannabis use. METHODS: Data were drawn from seven annual surveys of the NSDUH to include adolescents and young adults (age 12-21) who reported using cannabis at least once in the past 30 days (n = 21,928). Cannabis use frequency trends in the association between cigarette smoking, nicotine dependence and cannabis use disorder symptoms were assessed using Varying Coefficient Models (VCM's)...
April 16, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29679785/implications-in-studies-of-environmental-risk-assessments-does-culture-medium-influence-the-results-of-toxicity-tests-of-marine-bacteria
#8
Alejandra Díaz-García, Ana R Borrero-Santiago, Inmaculada Riba
Two marine bacterial populations (Roseobacter sp. and Pseudomonas litoralis) were exposed to different concentrations of zinc (300, 625, 1250, 2000, 2500 and 5000 mg L-1 ) and cadmium (75, 250, 340, 500 and 1000 mg L-1 ) using two culture media (full nutrient Marine Broth 2216 "MB" and 1:10 (vol/vol) dilution with seawater of Marine Broth 2216 "MBSW "), in order to assess population responses depending on the culture medium and also potential adverse effects associated with these two metals...
April 14, 2018: Chemosphere
https://www.readbyqxmd.com/read/29679609/cannabis-sativa-marijuana-alters-blood-chemistry-and-the-cytoarchitecture-of-some-organs-in-sprague-dawley-rat-models
#9
Nosarieme Omoregie Abey
There is evidence that Cannabis whose active ingredient is tetrahydrocannabinol (THC) is the most commonly abused neuroactive substance, among young adults. This work investigated the effects of Cannabis sativa on the cytoarchitecture of some key organs and the blood chemistry of rat models. Twenty-one (21) male Sprague Dawley rats were fed different percentage of cannabis chow (0%, 5% and 10%) for a period of seven (7) weeks. Rats were subjected to intermittent cognitive function test and sacrificed after the seventh week, collecting the blood, brain and other important tissues for analysis which include; brain total protein and nitric oxide concentration, blood chemistry and histopathology...
April 18, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29676145/identifying-and-quantifying-the-intermediate-processes-during-nitrate-dependent-iron-ii-oxidation
#10
James Jamieson, Henning Prommer, Anna Kaksonen, Jing Sun, Adam Siade, Anna Yusov, Benjamin C Bostick
Microbially driven nitrate-dependent iron (Fe) oxidation (NDFO) in subsurface environments has been intensively studied. However, the extent to which Fe(II) oxidation is biologically catalyzed remains unclear because no neutrophilic iron-oxidizing and nitrate reducing autotroph has been isolated to confirm the existence of an enzymatic pathway. While mixotrophic NDFO bacteria have been isolated, understanding the process is complicated by simultaneous abiotic oxidation due to nitrite produced during denitrification...
April 20, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29675707/a-rapid-solution-based-method-for-determining-the-affinity-of-heroin-hapten-induced-antibodies-to-heroin-its-metabolites-and-other-opioids
#11
Oscar B Torres, Alexander J Duval, Agnieszka Sulima, Joshua F G Antoline, Arthur E Jacobson, Kenner C Rice, Carl R Alving, Gary R Matyas
We describe for the first time a method that utilizes microscale thermophoresis (MST) technology to determine polyclonal antibody affinities to small molecules. Using a novel type of heterologous MST, we have accurately measured a solution-based binding affinity of serum antibodies to heroin which was previously impossible with other currently available methods. Moreover, this mismatch approach (i.e., using a cross-reactive hapten tracer) has never been reported in the literature. When compared with equilibrium dialysis combined with ultra-performance liquid chromatography/tandem mass spectrometry (ED-UPLC/MS/MS), this novel MST method yields similar binding affinity values for polyclonal antibodies to the major heroin metabolites 6-AM and morphine...
April 19, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29674802/dried-urine-spots-for-detection-of-benzodiazepines
#12
Raka Jain, Rizwana Quraishi, Atul Ambekar, Arpita Verma, Pratibha Gupta
BACKGROUND AND AIM: Benzodiazepines (BZD) are widely prescribed to substance users. However, the nonmedical use of prescription BZD often leads to abuse and dependence. Therefore, it is important to detect BZD among substance users seeking treatment. The aim of the present study was to develop an efficient method for testing BZD on dried urine spot (DUS) and evaluating its clinical applicability. METHODS: This involved optimization of conditions for the detection, recovery, and stability of BZD from dried urine, spotted on filter paper...
November 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/29674380/odor-discrimination-learning-in-the-indian-greater-short-nosed-fruit-bat-cynopterus-sphinx-differential-expression-of-egr-1-c-fos-and-pp-1-in-the-olfactory-bulb-amygdala-and-hippocampus
#13
Murugan Mukilan, Wieslaw Bogdanowicz, Ganapathy Marimuthu, Koilmani Emmanuvel Rajan
Activity-dependent expression of immediate-early genes (IEGs) is induced by exposure to odor. The present study was designed to investigate whether there is differential expression of IEGs ( Egr-1 , C-fos ) in the brain region mediating olfactory memory in the Indian greater short-nosed fruit bat Cynopterus sphinx We assumed that differential expression of IEGs in different brain regions may orchestrate a preference odor (PO) and aversive odor (AO) memory in C. sphinx We used preferred (0.8% wt/wt of cinnamon powder) and aversive (0...
April 19, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29674092/humic-acid-attenuation-of-silver-nanoparticle-toxicity-by-ion-complexation-and-the-formation-of-a-ag-3-coating
#14
Paolin Rocio Cáceres-Vélez, Maria Luiza Fascineli, Marcelo Henrique Sousa, Cesar Koppe Grisolia, Luis Yate, Paulo Eduardo Narcizo de Souza, Irina Estrela-Lopis, Sergio Moya, Ricardo Bentes Azevedo
The use of silver nanoparticles (AgNPs) result in an inevitable contact with aquatic environments. Here we study the behavior of AgNPs and the developmental toxicity in zebrafish embryos exposed to these nanoparticles (0-10 mg/L) with and without the presence of HA (20 mg/L), using zebrafish facility water (ZFW) and zebrafish growing media (ZGM). The presence of cations and HA gave rise to a decrease in Ag ion release and ζ-potential, an increase in the hydrodynamic diameter and oxidation of the AgNP surface...
April 11, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29672876/regional-brain-volume-changes-in-alcohol-dependent-individuals-during-short-term-and-long-term-abstinence
#15
Xiaowei Zou, Timothy C Durazzo, Dieter J Meyerhoff
BACKGROUND: Widespread brain atrophy in alcohol-dependent individuals (ALC) has been consistently documented in pathological and magnetic resonance imaging (MRI) studies. Longitudinal MRI studies have shown that the regional brain volume losses in ALC are partially reversible during abstinence from alcohol. The goal of this study was to determine volume reductions in cortical and subcortical regions functionally important to substance use behavior and their changes during short-term (1 week to 1 month) and long-term abstinence (1 month to 7 months) from alcohol...
April 19, 2018: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29671814/sex-specific-alterations-in-%C3%AE-4-nicotinic-receptor-expression-in-the-nucleus-accumbens
#16
Joan Y Holgate, Josephine R Tarren, Selena E Bartlett
Background : The mechanisms leading from traumatic stress to social, emotional and cognitive impairment and the development of mental illnesses are still undetermined and consequently there remains a critical need to develop therapies for preventing the adverse consequences of traumatic stress. Research indicates nicotinic acetylcholine receptors containing α4 subunits (α4*nAChRs) are both impacted by stress and capable of modulating the stress response. In this study, we investigated whether varenicline, a partial α4β2*nAChR agonist which reduces nicotine, alcohol and sucrose consumption, can reduce stress, a driving factor in substance use disorders...
April 19, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29671376/desistance-and-treatment-seeking-among-women-with-substance-use-disorders
#17
Blythe E Rhodes, Nisha C Gottfredson, Lauren M Hill
Addiction rates are rising faster among women than men. However, women with substance use disorders are less likely to enter treatment than males. This study seeks to understand how turning-point events and other maturational processes affect "life course persistent" women's motivations for seeking treatment for their disorder. We conducted semi-structured in-depth interviews with 30 women who were receiving treatment for addiction using thematic analysis. Recurring themes were as follows: experiences of rock-bottom events prior to entering treatment, feeling "sick and tired" in regard to both their physical and mental health, and shifting identities or perceptions of themselves...
April 1, 2018: Qualitative Health Research
https://www.readbyqxmd.com/read/29667798/delusional-infestation-in-psychodermatology
#18
Monica Rosales Santillan, Dustin L Taylor, Jason S Reichenberg
Delusional infestation (DI), also known as delusional parasitosis, consists of a patient's strong belief that he or she is infested with a nonliving substance or living organism despite lack of medical evidence to support this belief. The most commonly reported sources of infestation include insects, fibrous strands, worms, and scabies. Delusional infestation is predominantly seen in women and older patients. This disorder has a variable course and prognosis in patients. Delusional infestation can be a primary psychiatric problem, or secondary to underlying medical conditions or other psychiatric disorders...
April 18, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29667182/breathing-regulation-and-blood-gas-homeostasis-after-near-complete-lesions-of-the-retrotrapezoid-nucleus-in-adult-rats
#19
George M P R Souza, Roy Kanbar, Daniel S Stornetta, Stephen B G Abbott, Ruth L Stornetta, Patrice G Guyenet
The retrotrapezoid nucleus (RTN) is one of several CNS nuclei that contribute, in various capacities (e.g. CO2 detection, neuronal modulation) to the central respiratory chemoreflex (CRC). Here we test how important the RTN is to PCO2 homeostasis and breathing during sleep or wake. RTN Nmb positive neurons were killed with targeted microinjections of substance-P-saporin conjugate in adult rats. Under normoxia, rats with large RTN lesions (92 ± 4 % cell loss) had normal blood pressure (BP) and arterial pH but were hypoxic (-8 mmHg PaO2 ) and hypercapnic (+10 mmHg PaCO2 )...
April 18, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29664050/association-between-perceived-stressfulness-of-stressful-life-events-and-the-suicidal-risk-in-chinese-patients-with-major-depressive-disorder
#20
Jing-Yu Lin, Yu Huang, Yun-Ai Su, Xin Yu, Xiao-Zhen Lyu, Qi Liu, Tian-Mei Si
Background: Patients with major depressive disorder (MDD) usually have high risk of suicidality. Few studies have investigated the effects of stressful life events (SLEs) on the risk of suicide in Chinese patients who have developed MDD. This study aimed to investigate the impact of SLEs on suicidal risk in Chinese patients with MDD. Methods: In total, 1029 patients with MDD were included from nine psychiatric hospitals to evaluate the impact of SLEs on suicidal risk...
April 20, 2018: Chinese Medical Journal
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