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Progress in Neuro-psychopharmacology & Biological Psychiatry

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https://www.readbyqxmd.com/read/28093220/increased-oxytocin-levels-among-abstinent-heroin-addicts-association-with-aggressiveness-psychiatric-symptoms-and-perceived-childhood-neglect
#1
Lidia M Gerra, Gilberto Gerra, Laura Mercolini, Matteo Manfredini, Lorenzo Somaini, Chiara M Pieri, Maina Antonioni, Michele Protti, Paolo Ossola, Carlo Marchesi
A disruption of the oxytocin system seems to affect a variety of brain functions including emotions, mood and social behavior possibly underlying severe social deficits and susceptibility for substance use and mental health disorders. Early life adversity, such as insecure attachment in childhood, has been suggested to influence oxytocin tone contributing to a condition of neurobiological vulnerability. Aim of the present study was to investigate oxytocin serum levels in abstinent heroin addicted patients, in comparison with healthy controls, and the possible correlation with co-occurring psychiatric symptoms, aggressiveness and perception of parental neglect...
January 16, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28095309/microglia-under-psychosocial-stressors-along-the-aging-trajectory-consequences-on-neuronal-circuits-behavior-and-brain-diseases
#2
Li Tian, Chin Wai Hui, Kanchan Bisht, Yunlong Tan, Kaushik Sharma, Song Chen, Xiangyang Zhang, Marie-Eve Tremblay
Mounting evidence indicates the importance of microglia for proper brain development and function, as well as in complex stress-related neuropsychiatric disorders and cognitive decline along the aging trajectory. Considering that microglia are resident immune cells of the brain, a homeostatic maintenance of their effector functions that impact neuronal circuitry, such as phagocytosis and secretion of inflammatory factors, is critical to prevent the onset and progression of these pathological conditions. However, the molecular mechanisms by which microglial functions can be properly regulated under healthy and pathological conditions are still largely unknown...
January 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28095308/lithium-induced-malaise-does-not-interfere-with-adaptation-of-the-hypothalamic-pituitary-adrenal-axis-to-stress
#3
Maria Sanchís-Ollé, Juan Antonio Ortega-Sánchez, Xavier Belda, Humberto Gagliano, Roser Nadal, Antonio Armario
We have recently demonstrated that adaptation of the hypothalamic-pituitary-adrenal (HPA) axis to repeated exposure to a stressor does not follow the rules of habituation and can be fully expressed after a single experience with severe stressors. In the present work we tested the hypothesis that adaptation could be impaired if animals experience malaise during initial exposure to the stressor. To this end, animals were allowed to drink saccharin for 30min before being exposed for 3h to immobilization on boards (IMO), a severe stressor; then they were given either saline or lithium ip after the first hour of IMO...
January 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28089695/the-pharmacology-of-tacrine-at-n-methyl-d-aspartate-receptors
#4
REVIEW
Martin Horak, Kristina Holubova, Eugenie Nepovimova, Jan Krusek, Martina Kaniakova, Jan Korabecny, Ladislav Vyklicky, Kamil Kuca, Ales Stuchlik, Jan Ricny, Karel Vales, Ondrej Soukup
The mechanism of tacrine as a precognitive drug has been considered to be complex and not fully understood. It has been reported to involve a wide spectrum of targets involving cholinergic, gabaergic, nitrinergic and glutamatergic pathways. Here, we review the effect of tacrine and its derivatives on the NMDA receptors (NMDAR) with a focus on the mechanism of action and biological consequences related to the Alzheimer's disease treatment. Our findings indicate that effect of tacrine on glutamatergic neurons is both direct and indirect...
January 13, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28089694/affective-and-cognitive-correlates-of-ptsd-electrocortical-processing-of-threat-and-perseverative-errors-on-the-wcst-in-combat-related-ptsd
#5
Julia A DiGangi, Autumn Kujawa, Darrin M Aase, Joseph M Babione, Christopher Schroth, David M Levy, Amy E Kennedy, Justin E Greenstein, Eric Proescher, Robert Walters, Holly Passi, Scott A Langenecker, K Luan Phan
PTSD is characterized by both affective and cognitive dysfunction. Affectively, PTSD is associated with both heightened emotional reactivity and disengagement. Cognitively, perseverative thinking is a core feature of the disorder. In order to assess the interactive effects of affective and cognitive correlates of PTSD symptoms, 47 OEF/OIF/OND veterans completed an emotional faces matching task while EEG (i.e., late positive potential; LPP) was recorded, and separately completed the Wisconsin Card Sorting Test (WCST) to assess perseverative errors...
January 13, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28065843/alpha-7-nicotinic-agonists-for-cognitive-deficits-in-neuropsychiatric-disorders-a-translational-meta-analysis-of-rodent-and-human-studies
#6
Alan S Lewis, Gerrit I van Schalkwyk, Michael H Bloch
Cognitive dysfunction in schizophrenia (SCZ) and Alzheimer's disease (AD) is a major driver of functional disability but is largely unresponsive to current therapeutics. Animal models of cognitive dysfunction relevant to both disorders suggest the α7 nicotinic acetylcholine receptor (nAChR) may be a promising drug development target, with multiple clinical trials subsequently testing this hypothesis in individuals with SCZ and AD. However, the translational value of rodent cognitive tasks for predicting the overall efficacy of this therapeutic target in clinical trials is unknown...
January 5, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28062214/in-utero-exposure-to-atypical-antipsychotic-drug-risperidone-effects-on-fetal-neurotoxicity-in-hippocampal-region-and-cognitive-impairment-in-rat-offspring
#7
K P Singh, Manoj Kr Singh
Clinical studies indicate that about one-third of pregnant women with psychotic symptoms are exposed to either typical or atypical antipsychotic drugs (APDs). Reports on prenatal subject/model are lacking hence, the present study was undertaken to investigate the effect of prenatal exposure to risperidone (RIS) on the fetal hippocampus, and their related functional changes in young rat offspring. In this study, pregnant Wistar rats were exposed to equivalent therapeutic doses of RIS at 0.8mg/kg, 1.0mg/kg, and 2...
January 4, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28025020/epigenetic-and-genetic-variants-in-the-htr1b-gene-and-clinical-improvement-in-children-and-adolescents-treated-with-fluoxetine
#8
Patricia Gassó, Natalia Rodríguez, Ana Blázquez, Ana Monteagudo, Daniel Boloc, Maria Teresa Plana, Amalia Lafuente, Luisa Lázaro, Joan Albert Arnaiz, Sergi Mas
The serotonin 1B receptor (5-HT1B) is important to both the pathogenesis of major depressive disorder and the antidepressant effects of selective serotonin reuptake inhibitors. Although fluoxetine has been shown to be effective and safe in children and adolescents, not all patients experience a proper clinical response, which has led to further study into the main factors involved in this inter-individual variability. Our aim was to study the effect of epigenetic and genetic factors that could affect 5-hydroxytryptamine receptor 1B (HTR1B) gene expression, and thereby response to fluoxetine...
December 23, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28025019/time-dependent-interacting-effects-of-caffeine-diazepam-and-ethanol-on-zebrafish-behaviour
#9
Steven Tran, Niveen Fulcher, Magda Nowicki, Priyanka Desai, Benjamin Tsang, Amanda Facciol, Hayden Chow, Robert Gerlai
Zebrafish have become a popular animal model for behavioural pharmacology due to their small size, rapid development, and amenability to high throughput behavioural drug screens. Furthermore, water-soluble compounds can be administered via immersion of the fish in the drug solution, which provides a non-invasive drug delivery method. Numerous studies have demonstrated stimulant effects of alcohol. Diazepam and caffeine, on the other hand have been found to have inhibitory effect on locomotor activity in zebrafish...
December 23, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28007463/electroretinographic-anomalies-in-medicated-and-drug-free-patients-with-major-depression-tagging-the-developmental-roots-of-major-psychiatric-disorders
#10
Marc Hébert, Chantal Mérette, Thomas Paccalet, Anne-Marie Gagné, Michel Maziade
The retina is tagged as an approachable part of the brain due to its common embryonic origin and appears as a promising site of investigation for psychiatric disorders. Retinal function is assessed best with the electroretinogram (ERG), which was obtained in a large sample of patients with major depressive disorder and matched controls. ERG cone and rod luminance response functions were recorded in non-dilated eyes in 100 major depressive disorder patients (MDD) and 100 controls, (mean age of 42.8 and 40.9y...
December 19, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27890676/combined-in-vitro-and-in-silico-approaches-to-the-assessment-of-stimulant-properties-of-novel-psychoactive-substances-the-case-of-the-benzofuran-5-mapb
#11
Michelle A Sahai, Colin Davidson, George Khelashvili, Vincenzo Barrese, Neelakshi Dutta, Harel Weinstein, Jolanta Opacka-Juffry
Novel psychoactive substances (NPS) are increasingly prevalent world-wide although their pharmacological characteristics are largely unknown; those with stimulant properties, due to interactions with the dopamine transporter (DAT), have addictive potential which their users may not realise. We evaluated the binding of 1-(1-benzofuran-5-yl)-N-methylpropan-2-amine (5-MAPB) to rat striatal DAT by means of quantitative autoradiography with [(125)I]RTI-121, and the effects of 5-MAPB on electrically-evoked dopamine efflux by fast-cyclic voltammetry in rat brain slices...
November 24, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27889412/cannabidiol-reduces-neuroinflammation-and-promotes-neuroplasticity-and-functional-recovery-after-brain-ischemia
#12
Marco Aurélio Mori, Erika Meyer, Ligia Mendes Soares, Humberto Milani, Francisco Silveira Guimarães, Rúbia Maria Weffort de Oliveira
This study investigated the effects of cannabidiol (CBD), a non-psychotomimetic phytochemical present in Cannabis sativa, on the cognitive and emotional impairments induced by bilateral common carotid artery occlusion (BCCAO) in mice. Using a multi-tiered behavioral testing battery during 21days, we found that BCCAO mice exhibited long-lasting functional deficits reflected by increase in anxiety-like behavior (day 9), memory impairments (days 12-18) and despair-like behavior (day 21). Short-term CBD 10mg/kg treatment prevented the cognitive and emotional impairments, attenuated hippocampal neurodegeneration and white matter (WM) injury, and reduced glial response that were induced by BCCAO...
November 23, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27876669/ginsenoside-rg1-induced-antidepressant-effects-involve-the-protection-of-astrocyte-gap-junctions-within-the-prefrontal-cortex
#13
Can Jin, Zhen-Zhen Wang, Heng Zhou, Yu-Xia Lou, Jiao Chen, Wei Zuo, Man-Tong Tian, Zhi-Qi Wang, Guo-Hua Du, Ichiro Kawahata, Tohru Yamakuni, Yi Zhang, Nai-Hong Chen, Dan-Shen Zhang
Ginsenoside Rg1 (Rg1) exhibits antidepressant-like activity by increasing neurogenesis and dendritic spine density without discernible side effects. However, the molecular mechanisms underlying Rg1 antidepressant activity remain poorly understood. As the dysfunction of gap junctions between astrocytes in the prefrontal cortex (PFC) is implicated in major depression disorder, the aim of this study was to investigate the effects of Rg1 on astrocyte gap junctions in the PFC. Rats exposed to chronic unpredictable stress (CUS) were administered Rg1 (5, 10, and 20mg/kg) for 28days and analyzed for depressive symptoms using the sucrose preference and forced swimming tests...
November 19, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27825907/thiamine-and-benfotiamine-improve-cognition-and-ameliorate-gsk-3%C3%AE-associated-stress-induced-behaviours-in-mice
#14
Nataliia Markova, Nataliia Bazhenova, Daniel C Anthony, Julie Vignisse, Andrey Svistunov, Klaus-Peter Lesch, Lucien Bettendorff, Tatyana Strekalova
Thiamine (vitamin B1) deficiency in the brain has been implicated in the development of dementia and symptoms of depression. Indirect evidence suggests that thiamine may contribute to these pathologies by controlling the activities of glycogen synthase kinase (GSK)-3β. While decreased GSK-3β activity appears to impair memory, increased GSK-3β activity is associated with the distressed/depressed state. However, hitherto direct evidence for the effects of thiamine on GSK-3β function has not been reported...
November 4, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27984159/spectroscopy-markers-of-suicidal-risk-and-mental-pain-in-depressed-patients
#15
Fabrice Jollant, Jamie Near, Gustavo Turecki, Stéphane Richard-Devantoy
OBJECTIVE: Suicidal behavior has been associated with structural and functional impairments in neuroimaging studies, mainly localized in the prefrontal cortex. However, little is known of the in vivo biochemical alterations that could be markers of suicidal risk. METHODS: Proton magnetic resonance spectroscopy was used to measure at-rest levels of 9 metabolites (glutamate, glutamine, glutathione, GABA, N-acetylaspartate (NAA), N-acetylaspartylglutamate, myo-inositol, aspartate, total choline), in the right dorsal prefrontal cortex of 25 unmedicated depressed patients, including 15 with a history of suicidal behavior, and 33 healthy controls...
October 27, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27984158/association-of-norepinephrine-transporter-gene-polymorphisms-in-attention-deficit-hyperactivity-disorder-in-korean-population
#16
So-Young Oh, Yong-Ku Kim
We investigated the association of three single nucleotide polymorphisms(SNP) of the norepinephrine transporter (NET) gene SLC6A2, T-182C (rs2242446), A-3081T (rs28386840), and G-1287A (rs5569) with the prevalence of attention-deficit/hyperactivity disorder (ADHD), its clinical severity, and other disease-related characteristics in a Korean population. The genotype, allele frequency and haplotype of 103 ADHD patients and 173 controls were analyzed for these three SNPs. All participants completed the Korean version of the ADHD Rating Scale (K-ARS)...
October 27, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28063470/corrigendum-to-the-use-of-cannabinoids-as-anticancer-agents-prog-neuro-psychopharmacol-biol-psychiatry-64-2016-259-266
#17
Guillermo Velasco, Sonia Hernández-Tiedra, David Dávila, Mar Lorente
No abstract text is available yet for this article.
March 6, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27940252/the-relationship-between-the-striatal-dopamine-transporter-and-novelty-seeking-and-cognitive-flexibility-in-opioid-dependence
#18
Chih-Sung Liang, Pei-Shen Ho, Che-Hung Yen, Chun-Yen Chen, Shin-Chang Kuo, Chang-Chih Huang, Yi-Wei Yeh, Kuo-Hsing Ma, San-Yuan Huang
Novelty seeking (NS) is a core personality trait that primes the susceptibility to drug addiction. Striatal dopamine activity contributes to cognitive flexibility, an important cognitive strategy to inhibit impulsivity and compulsive drug-seeking behavior. Evidence supports the association between dopamine and NS. Opioid-dependent patients show higher levels of NS, and repeated opioid exposure can cause cognitive deficits including poor cognitive flexibility and impaired impulse control. However, in opioid-dependent patients, the link between NS, striatal dopamine activity, and cognitive flexibility is still unclear...
March 6, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27940200/polyunsaturated-fatty-acids-and-suicide-risk-in-mood-disorders-a-systematic-review
#19
REVIEW
Maurizio Pompili, Lucia Longo, Giovanni Dominici, Gianluca Serafini, Dorian A Lamis, Jerome Sarris, Mario Amore, Paolo Girardi
Deficiency of omega-3 polyunsaturated fatty acids (PUFAs) and an alteration between the ratio of omega-3 and omega-6 PUFAs may contribute to the pathogenesis of bipolar disorder and unipolar depression. Recent epidemiological studies have also demonstrated an association between the depletion of PUFAs and suicide. Our aim was to investigate the relationship between PUFAs and suicide; assess whether the depletion of PUFAs may be considered a risk factor for suicidal behavior; in addition to detailing the potential use of PUFAs in clinical practice...
March 6, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27919738/long-term-ethanol-self-administration-induces-%C3%AE-fosb-in-male-and-female-adolescent-but-not-in-adult-wistar-rats
#20
Aranza Wille-Bille, Soledad de Olmos, Leonardo Marengo, Florencia Chiner, Ricardo Marcos Pautassi
Early-onset ethanol consumption predicts later development of alcohol use disorders. Age-related differences in reactivity to ethanol's effects may underlie this effect. Adolescent rats are more sensitive and less sensitive than adults to the appetitive and aversive behavioral effects of ethanol, respectively, and more sensitive to the neurotoxic effects of experimenter-administered binge doses of ethanol. However, less is known about age-related differences in the neural consequences of self-administered ethanol...
March 6, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
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