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https://www.readbyqxmd.com/read/28327799/prevalence-and-factors-associated-with-syphilis-in-a-reference-center
#1
Natália Carolina Rodrigues Colombo Gomes, Denise Andrade Pereira Meier, Flávia Meneguetti Pieri, Elaine Alves, Silvia Paulino Ribeiro Albanese, Edvilson Cristiano Lentine, Ricardo Alexandre Arcêncio, Elma Mathias Dessunti
INTRODUCTION: The implementation of the rapid test (RT) for syphilis increases access of vulnerable populations to early diagnosis and treatment, impacting the outcomes of infection. We aimed to assess the prevalence of and factors associated with syphilis in a Center for Testing and Counseling (CTC). METHODS: We conducted a cross-sectional study at a Reference Center for sexually transmitted disease (STD) and acquired immune deficiency syndrome in Londrina, Northern Paraná State, Southern Brazil...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28327432/feedback-from-arctic-charr-feed-flavour-stimulation-and-re-feeding-after-feed-deprivation-stimulate-genes-encoding-both-orexigenic-and-anorexigenic-neuropeptides
#2
Anja Striberny, Even H Jørgensen
Despite vast research attention, the knowledge about central mechanisms of appetite regulation in teleost remains inconclusive. A common strategy in studies on appetite regulating mechanisms is to measure the response to feed restriction or - deprivation, but responses vary between fish species and between experiments, and are also likely dependent on the degree of energy perturbation. The anadromous Arctic charr is an interesting model for studying appetite regulation as its feeding cycle comprises months of winter anorexia, and hyperphagia during summer...
March 18, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28325790/dopamine-terminals-from-the-ventral-tegmental-area-gate-intrinsic-inhibition-in-the-prefrontal-cortex
#3
William C Buchta, Stephen V Mahler, Benjamin Harlan, Gary S Aston-Jones, Arthur C Riegel
Spike frequency adaptation (SFA or accommodation) and calcium-activated potassium channels that underlie after-hyperpolarization potentials (AHP) regulate repetitive firing of neurons. Precisely how neuromodulators such as dopamine from the ventral tegmental area (VTA) regulate SFA and AHP (together referred to as intrinsic inhibition) in the prefrontal cortex (PFC) remains unclear. Using whole cell electrophysiology, we measured intrinsic inhibition in prelimbic (PL) layer 5 pyramidal cells of male adult rats...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28324454/reward-circuitry-in-addiction
#4
REVIEW
Sarah Cooper, A J Robison, Michelle S Mazei-Robison
Understanding the brain circuitry that underlies reward is critical to improve treatment for many common health issues, including obesity, depression, and addiction. Here we focus on insights into the organization and function of reward circuitry and its synaptic and structural adaptations in response to cocaine exposure. While the importance of certain circuits, such as the mesocorticolimbic dopamine pathway, are well established in drug reward, recent studies using genetics-based tools have revealed functional changes throughout the reward circuitry that contribute to different facets of addiction, such as relapse and craving...
March 21, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28322980/role-of-perineuronal-nets-in-the-anterior-dorsal-lateral-hypothalamic-area-in-the-acquisition-of-cocaine-induced-conditioned-place-preference-and-self-administration
#5
Jordan M Blacktop, Ryan P Todd, Barbara A Sorg
Addiction involves drug-induced neuroplasticity in the circuitry of motivated behavior, which includes the medial forebrain bundle and the lateral hypothalamic area. Emerging at the forefront of neuroplasticity regulation are specialized extracellular matrix (ECM) structures that form perineuronal nets (PNNs) around certain neurons, mainly parvalbumin positive (PV(+)), fast-spiking interneurons (FSINs), making them a promising target for the regulation of drug-induced neuroplasticity. Despite the emerging significance of PNNs in drug-induced neuroplasticity and the well-established role of the lateral hypothalamic area (LHA) in reward, reinforcement, and motivation, very little is known about how PNN-expressing neurons control drug-seeking behavior...
March 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28319785/the-long-and-complex-road-in-the-search-for-treatment-for-mental-disorders-an-analysis-of-the-process-in-five-groups-of-patients
#6
Gema Del Valle, Amparo Belloch, Carmen Carrió
Seeking treatment for mental-health problems is a complex process, with different underlying motives in each stage. However, the entire process and these motives have hardly been investigated. This study aims to analyze the different stages of the help-seeking process and their underlying motives in five groups of patients with different mental disorders. In all, 156 patients seeking treatment in outpatient mental health clinics were individually interviewed: 71 had Obsessive-Compulsive Disorder (OCD), 21 had Agoraphobia (AGO), 18 had Major Depressive Disorder (MDD), 20 had Anorexia Nervosa (AN), and 22 had Cocaine Dependence (COC)...
March 15, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28317506/theory-of-mind-impairments-in-women-with-cocaine-addiction
#7
Breno Sanvicente-Vieira, Bruno Kluwe-Schiavon, Rhiannon Corcoran, Rodrigo Grassi-Oliveira
OBJECTIVE: This study investigates the Theory of Mind performance of female cocaine-dependent users (CDUs) and possible associations between theory of mind performance and features of cocaine use. METHOD: Sixty women controlled for age, education, individual income, and IQ participated in this study: 30 in the CDU group and 30 in the healthy control group. Participants were assessed for theory of mind with the Reading the Mind in the Eyes Test (RMET), a test of understanding of first-order and second-order false beliefs, and the Hinting task...
March 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28314885/adverse-effects-of-levamisole-in-cocaine-users-a-review-and-risk-assessment
#8
REVIEW
Tibor Markus Brunt, Jorrit van den Berg, Ed Pennings, Bastiaan Venhuis
The immunomodulatory adjuvant and antihelminth levamisole is increasingly used as an adulterant in cocaine worldwide. An accumulating body of clinical and toxicological literature has appeared since 2010 describing neutropenia, agranulocytosis, leukoencephalopathy and vasculitis in cases associated with levamisole-adulterated cocaine. Mostly, neutropenia and agranulocytosis were reported, characterized by a decimation of neutrophils. A large proportion of cases also involved vasculopathy, characterized by pronounced black and purple skin purpura with cutaneous necrosis...
March 17, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28297025/association-of-stimulant-use-with-dopaminergic-alterations-in-users-of-cocaine-amphetamine-or-methamphetamine-a-systematic-review-and-meta-analysis
#9
Abhishekh H Ashok, Yuya Mizuno, Nora D Volkow, Oliver D Howes
Importance: Stimulant use disorder is common, affecting between 0.3% and 1.1% of the population, and costs more than $85 billion per year globally. There are no licensed treatments to date. Several lines of evidence implicate the dopamine system in the pathogenesis of substance use disorder. Therefore, understanding the nature of dopamine dysfunction seen in stimulant users has the potential to aid the development of new therapeutics. Objective: To comprehensively review the in vivo imaging evidence for dopaminergic alterations in stimulant (cocaine, amphetamine, or methamphetamine) abuse or dependence...
March 15, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28296627/predictors-of-early-relapse-among-adolescent-crack-users
#10
Ronaldo Lopes-Rosa, Félix P Kessler, Thiago G Pianca, Luciano Guimarães, Pedro Ferronato, Esequiel Pagnussat, Helena Moura, Flavio Pechansky, Lisia von Diemen
Relapse is associated with a poor prognosis among drug users. Crack cocaine users are more prone to severe dependence because of the intensity of use. Additionally, initiating drug use during adolescence worsens users' prognosis due to the increased rates of impulsivity and other risk behaviors. This study aimed to identify the predictors of early relapse among adolescent crack users discharged from inpatient treatment. A cohort study was conducted with 89 psychiatric inpatients aged 12-17 years from two different hospitals in southern Brazil who met the criteria for crack abuse or dependence...
February 15, 2017: Journal of Addictive Diseases
https://www.readbyqxmd.com/read/28295758/internet-interventions-for-adult-illicit-substance-users-a-meta-analysis
#11
REVIEW
Nikolaos Boumparis, Eirini Karyotaki, Michael P Schaub, Pim Cuijpers, Heleen Riper
BACKGROUND AND AIMS: Research has shown that internet interventions can be effective for dependent users of various substances. However, less is known about the effects of these interventions on users of opioids, cocaine, and amphetamines than for other substances. We aimed to investigate the effectiveness of internet interventions in decreasing the usage of these types of substances. METHODS: We conducted a systematic literature search in the databases of PubMed, PsycINFO, Embase, and the Cochrane Library to identify randomized controlled trials examining the effectiveness of internet interventions compared with control conditions in reducing the use of opioids, cocaine, and amphetamines...
March 10, 2017: Addiction
https://www.readbyqxmd.com/read/28290530/identifying-life-threatening-admissions-for-drug-dependence-or-abuse-iliadda-derivation-and-validation-of-a-model
#12
Tri-Long Nguyen, Thierry Boudemaghe, Géraldine Leguelinel-Blache, Céline Eiden, Jean-Marie Kinowski, Yannick Le Manach, Hélène Peyrière, Paul Landais
Given that drug abuse and dependence are common reasons for hospitalization, we aimed to derive and validate a model allowing early identification of life-threatening hospital admissions for drug dependence or abuse. Using the French National Hospital Discharge Data Base, we extracted 66,101 acute inpatient stays for substance abuse, dependence, mental disorders or poisoning associated with medicines or illicit drugs intake, recorded between January 1(st), 2009 and December 31(st), 2014. We split our study cohort at the center level to create a derivation cohort and a validation cohort...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28281685/myocardial-oxidative-damage-is-induced-by-cardiac-fas-dependent-and-mitochondria-dependent-apoptotic-pathways-in-human-cocaine-related-overdose
#13
Emanuela Turillazzi, Daniela Cerretani, Santina Cantatore, Anna Ida Fiaschi, Paola Frati, Lucia Micheli, Margherita Neri, Luigi Cipolloni, Marco Di Paolo, Enrica Pinchi, Irene Riezzo, Alessandro Santurro, Annamaria Vullo, Vittorio Fineschi
The aim of this study is to analyse cardiac specimens from human cocaine-related overdose, to verify the hypothesis that cardiac toxicity by acute exposure to high dosage of cocaine could be mediated by unbalanced myocardial oxidative stress, and to evaluate the apoptotic response. To address these issues, biochemical and immunohistological markers of oxidative/nitrosative stress were evaluated. We found that i-NOS, NOX2 and nitrotyrosine expression were significantly higher in the hearts of subjects who had died from high doses of cocaine, compared to the control group...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28271626/acupuncture-reduces-relapse-to-cocaine-seeking-behavior-via-activation-of-gaba-neurons-in-the-ventral-tegmental-area
#14
Wyju Jin, Min Sun Kim, Eun Young Jang, Jun Yeon Lee, Jin Gyeom Lee, Hong Yu Kim, Seong Shoon Yoon, Bong Hyo Lee, Suchan Chang, Jae Hyo Kim, Kwang H Choi, Ho Koo, Young Seob Gwak, Scott C Steffensen, Yeon-Hee Ryu, Hee Young Kim, Chae Ha Yang
There is growing public interest in alternative approaches to addiction treatment and scientific interest in elucidating the neurobiological underpinnings of acupuncture. Our previous studies showed that acupuncture at a specific Shenmen (HT7) points reduced dopamine (DA) release in the nucleus accumbens (NAc) induced by drugs of abuse. The present study was carried out to evaluate the effects of HT7 acupuncture on γ-aminobutyric acid (GABA) neuronal activity in the ventral tegmental area (VTA) and the reinstatement of cocaine-seeking behavior...
March 7, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28270570/baf53b-a-neuron-specific-nucleosome-remodeling-factor-is-induced-after-learning-and-facilitates-long-term-memory-consolidation
#15
Miran Yoo, Kwang-Yeon Choi, Jieun Kim, Mujun Kim, Jaehoon Shim, Jun-Hyeok Choi, Hye-Yeon Cho, Jungpyo Oh, Hyung-Su Kim, Bong-Kiun Kaang, Jin-Hee Han
Although epigenetic mechanisms of gene expression regulation have recently been implicated in memory consolidation and persistence, the role of nucleosome-remodeling is largely unexplored. Recent studies show that the functional loss of BAF53b, a post-mitotic neuron-specific subunit of the BAF nucleosome-remodeling complex, results in the deficit of consolidation of hippocampus-dependent memory and cocaine-associated memory in the rodent brain. However, it is unclear whether BAF53b expression is regulated during memory formation and how BAF53b regulates fear memory in the amygdala, a key brain site for fear memory encoding and storage...
March 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28270566/orbitofrontal-neuroadaptations-and-cross-species-synaptic-biomarkers-in-heavy-drinking-macaques
#16
Sudarat Nimitvilai, Joachim D Uys, John J Woodward, Patrick K Randall, Lauren E Ball, Robert W Williams, Byron C Jones, Lu Lu, Kathleen A Grant, Patrick J Mulholland
Cognitive impairments, uncontrolled drinking, and neuropathological cortical changes characterize alcohol use disorder. Dysfunction of the orbitofrontal cortex (OFC), a critical cortical sub-region that controls learning, decision-making, and prediction of reward outcomes, contributes to executive cognitive function deficits in alcoholics. Electrophysiological and quantitative synaptomics techniques were used to test the hypothesis that heavy drinking produces neuroadaptations in the macaque OFC. Integrative bioinformatics and reverse genetic approaches were used to identify and validate synaptic proteins with novel links to heavy drinking in BXD mice...
March 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28268215/randomised-comparison-of-a-novel-buprenorphine-oral-lyophilisate-versus-existing-buprenorphine-sublingual-tablets-in-opioid-dependent-patients-a-first-in-patient-phase-ii-randomised-open-label-safety-study
#17
John Strang, Kylie Reed, Karolina Bogdanowicz, James Bell, Rob van der Waal, Jenny Keen, Pete Beavan, Shelagh Baillie, Alastair Knight
AIMS: To test the safety of new buprenorphine oral lyophilisate wafer ("bup-lyo") versus standard sub-lingual buprenorphine ("bup-SL"). DESIGN: Randomised (2:1) open-label study; opioid-dependent subjects; subsequent partial cross-over. SETTINGS: Specialised clinical trials facility and addictions treatment facility. PARTICIPANTS: Opioid-dependent subjects (n = 36) commencing buprenorphine maintenance (personalised dose-titration) including patients co-using alcohol, cocaine and benzodiazepines (below thresholds)...
March 8, 2017: European Addiction Research
https://www.readbyqxmd.com/read/28267152/effects-of-naltrexone-are-influenced-by-childhood-adversity-during-negative-emotional-processing-in-addiction-recovery
#18
G Savulich, R Riccelli, L Passamonti, M Correia, J F W Deakin, R Elliott, R S A Flechais, A R Lingford-Hughes, J McGonigle, A Murphy, D J Nutt, C Orban, L M Paterson, L J Reed, D G Smith, J Suckling, R Tait, E M Taylor, B J Sahakian, T W Robbins, K D Ersche
Naltrexone is an opioid receptor antagonist used in the management of alcohol dependence. Although the endogenous opioid system has been implicated in emotion regulation, the effects of mu-opioid receptor blockade on brain systems underlying negative emotional processing are not clear in addiction. Individuals meeting criteria for alcohol dependence alone (n=18, alcohol) and in combination with cocaine and/or opioid dependence (n=21, alcohol/drugs) and healthy individuals without a history of alcohol or drug dependence (n=21) were recruited...
March 7, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28266501/the-novel-modafinil-analog-jjc8-016-as-a-potential-cocaine-abuse-pharmacotherapeutic
#19
Hai-Ying Zhang, Guo-Hua Bi, Hong-Ju Yang, Yi He, Gilbert Xue, Jian-Jing Cao, Gianluigi Tanda, Eliot L Gardner, Amy Hauck Newman, Zheng-Xiong Xi
(±)Modafinil ((±)MOD) and its R-enantiomer (R-modafinil; R-MOD) have been investigated for their potential as treatments for psychostimulant addiction. We recently reported a series of (±)MOD analogues, of which JJC8-016 (N-(2-((bis(4-fluorophenyl)methyl)thio)ethyl)-3-phenylpropan-1-amine) was selected for further development. JJC8-016 and R-MOD were evaluated for binding across ~70 receptors, transporters and enzymes. Although at a concentration of 10 μM, there were many hits for JJC8-016, binding affinities in the range of its DAT affinity were only observed at the serotonin transporter (SERT), dopamine D2-like and sigma1 receptors...
March 7, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28260681/the-effect-of-task-difficulty-on-motor-performance-and-frontal-striatal-connectivity-in-cocaine-users
#20
Daniel H Lench, William DeVries, Colleen A Hanlon
BACKGROUND: There is growing recognition that chronic cocaine users have alterations in sensorimotor control that are positively related to low frontal-striatal connectivity within the motor system. These frontal-striatal motor circuits however, are modulated by circuits governing attention, which are also disrupted in cocaine users. This study's aim was to determine if sensorimotor control deficits are positively related to the difficulty of a motor task or exist independent of the increasing cognitive demand...
January 21, 2017: Drug and Alcohol Dependence
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