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Progress in Neuro-psychopharmacology & Biological Psychiatry

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https://www.readbyqxmd.com/read/28336497/intrinsic-disruption-of-white-matter-microarchitecture-in-first-episode-drug-naive-major-depressive-disorder-a-voxel-based-meta-analysis-of-diffusion-tensor-imaging
#1
REVIEW
Guangxiang Chen, Yi Guo, Hongyan Zhu, Weihong Kuang, Feng Bi, Hua Ai, Zhongwei Gu, Xiaoqi Huang, Su Lui, Qiyong Gong
Previous studies have demonstrated the influences of episodes and antidepressant drugs on white matter (WM) in patients with major depressive disorder (MDD). However, most diffusion tensor imaging (DTI) studies included highly heterogeneous individuals with different numbers of depressive episodes or medication status. To exclude the confounding effects of multiple episodes or medication, we conducted a quantitative voxel-based meta-analysis of fractional anisotropy (FA) in patients with first-episode, drug-naive MDD to identify the intrinsic WM alterations involved in the pathogenesis of MDD...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28336496/functional-eeg-network-analysis-in-schizophrenia-evidence-of-larger-segregation-and-deficit-of-modulation
#2
Javier Gomez-Pilar, Alba Lubeiro, Jesús Poza, Roberto Hornero, Marta Ayuso, César Valcárcel, Karim Haidar, José A Blanco, Vicente Molina
OBJECTIVE: Higher mental functions depend on global cerebral functional coordination. Our aim was to study fast modulation of functional networks in schizophrenia that has not been previously assessed. METHODS: Graph-theory was used to analyze the electroencephalographic (EEG) activity during an odd-ball task in 57 schizophrenia patients (18 first episode patients, FEPs) and 59 healthy controls. Clustering coefficient (CLC), characteristic path length (PL) and small-worldness (SW) were computed at baseline ([-300 0] ms prior to stimulus delivery) and response ([150 450] ms post-stimulus) windows...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28336495/genetic-variation-and-epigenetic-modification-of-the-prodynorphin-gene-in-peripheral-blood-cells-in-alcoholism
#3
Claudio D'Addario, Klementy Shchetynsky, Mariangela Pucci, Carlo Cifani, Agneta Gunnar, Vladana Vukojević, Leonid Padyukov, Lars Terenius
Dynorphins are critically involved in the development, maintenance and relapse of alcoholism. Alcohol-induced changes in the prodynorphin gene expression may be influenced by both gene polymorphisms and epigenetic modifications. The present study of human alcoholics aims to evaluate DNA methylation patterns in the prodynorphin gene (PDYN) promoter and to identify single nucleotide polymorphisms (SNPs) associated with alcohol dependence and with altered DNA methylation. Genomic DNA was isolated from peripheral blood cells of alcoholics and healthy controls, and DNA methylation was studied in the PDYN promoter by bisulfite pyrosequencing...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28336494/minocycline-reduces-inflammatory-parameters-in-the-brain-structures-and-serum-and-reverses-memory-impairment-caused-by-the-administration-of-amyloid-%C3%AE-1-42-in-mice
#4
Michelle Lima Garcez, Francielle Mina, Tatiani Bellettini-Santos, Franciellen Gonçalves Carneiro, Aline Pereira da Luz, Gustavo Luis Schiavo, Matheus Scopel Andrighetti, Maylton Grégori Scheid, Renan Pereira Bolfe, Josiane Budni
Alzheimer's disease (AD) is a neurodegenerative disorder and the most common type of age-related dementia. Cognitive decline, beta-amyloid (Aβ) accumulation, neurofibrillary tangles, and neuroinflammation are the main pathophysiological characteristics of AD. Minocycline is a tetracycline derivative with anti-inflammatory properties that has a neuroprotective effect. The aim of this study was to evaluate the effect of minocycline on memory, neurotrophins and neuroinflammation in an animal model of AD induced by the administration of Aβ (1-42) oligomer...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28336493/the-central-mechanism-of-risperidone-induced-hyperprolactinemia
#5
Wei-Wei Sun, Lin-Yu Li, Xu-Feng Huang, Yan-Chuan Shi, He-Qin Yang, Zhi-Yuan Song, Shu Lin
Risperidone is known to increase prolactin secretion in treating mental illness patients. This side-effect is thought to be mediated via central signaling pathway. However, the exact pathway involved between risperidone and hyperprolactinemia are still unknown. Therefore, we have treated mice with risperidone and investigate the central mechanisms. The present study showed that in risperidone treated group, the level of the serum prolactin significantly increased, which was consistent with increased positive prolactin staining in pituitary gland...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28336492/looking-into-the-brain-through-the-retinal-ganglion-cells-in-psychiatric-disorders-a-review-of-evidences
#6
REVIEW
Thomas Schwitzer, Raymund Schwan, Emanuel Bubl, Laurence Lalanne, Karine Angioi-Duprez, Vincent Laprevote
Psychiatry and neuroscience research need novel approaches to indirectly investigate brain function. As the retina is an anatomical and developmental extension of the central nervous system (CNS), changes in retinal function may reflect neurological dysfunctions in psychiatric disorders. The last and most integrated retinal relay before visual information transfer to the brain is the ganglion cell layer. Here, based on collected arguments, we argue that these cells offer a crucial site for indirectly investigating brain function...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28336491/neurobehavioral-effects-of-lithium-in-the-rat-investigation-of-the-effect-concentration-relationships-and-the-contribution-of-the-poisoning-pattern
#7
Anne-Sophie Hanak, Lucie Chevillard, Rodolphe Lebeau, Patricia Risède, Jean-Louis Laplanche, Nadia Benturquia, Bruno Mégarbane
Severity of lithium poisoning depends on the ingested dose, previous treatment duration and renal function. No animal study has investigated neurobehavioral differences in relation to the lithium poisoning pattern observed in humans, while differences in lithium pharmacokinetics have been reported in lithium-pretreated rats mimicking chronic poisonings with enhanced brain accumulation in rats with renal failure. Our objectives were: 1)-to investigate lithium-related effects in overdose on locomotor activity, anxiety-like behavior, spatial recognition memory and anhedonia in the rat; 2)-to model the relationships between lithium-induced effects on locomotion and plasma, erythrocyte, cerebrospinal fluid and brain concentrations previously obtained according to the poisoning pattern...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28330787/acute-impact-of-caffeinated-alcoholic-beverages-on-cognition-a-systematic-review
#8
REVIEW
Laurence Lalanne, Pierre-Eric Lutz, François Paille
INTRODUCTION: Energy drinks are popular beverages that are supposed to counteract sleepiness, increase energy, maintain alertness and reduce symptoms of hangover. Cognitive enhancing seems to be related to many compounds such as caffeine, taurine and vitamins. Currently, users mostly combine psychostimulant effects of energy drinks to counteract sedative effects of alcohol. However, recent literature suggests that this combination conducts to feel less intoxicated but still impaired. The goal of the present article is to review cognitive impact and subjective awareness in case of caffeinated alcoholic beverage (CAB) intoxication...
March 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28322982/toward-biomarkers-of-the-addicted-human-brain-using-neuroimaging-to-predict-relapse-and-sustained-abstinence-in-substance-use-disorder
#9
REVIEW
Scott J Moeller, Martin P Paulus
The ability to predict relapse is a major goal of drug addiction research. Clinical and diagnostic measures are useful in this regard, but these measures do not fully and consistently identify who will relapse and who will remain abstinent. Neuroimaging approaches have the potential to complement these standard clinical measures to optimize relapse prediction. The goal of this review was to survey the existing drug addiction literature that either used a baseline functional or structural neuroimaging phenotype to longitudinally predict a clinical outcome, or that examined test-retest of a neuroimaging phenotype during a course of abstinence or treatment...
March 16, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28322981/imaging-genetics-in-autism-spectrum-disorders-linking-genetics-and-brain-imaging-in-the-pursuit-of-the-underlying-neurobiological-mechanisms
#10
REVIEW
Marc Fakhoury
Autism spectrum disorders (ASD) include a wide range of heterogeneous neurodevelopmental conditions that affect an individual in several aspects of social communication and behavior. Recent advances in molecular genetic technologies have dramatically increased our understanding of ASD etiology through the identification of several autism risk genes, most of which serve important functions in synaptic plasticity and protein synthesis. However, despite significant progress in this field of research, the characterization of the neurobiological mechanisms by which common genetic risk variants might operate to give rise to ASD symptomatology has proven to be far more difficult than expected...
March 16, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28302501/pharmacokinetic-considerations-in-antipsychotic-augmentation-strategies-how-to-combine-risperidone-with-low-potency-antipsychotics
#11
Michael Paulzen, Georgios Schoretsanitis, Benedikt Stegmann, Christoph Hiemke, Gerhard Gründer, Koen R J Schruers, Sebastian Walther, Sarah E Lammertz, Ekkehard Haen
OBJECTIVES: To investigate in vivo the effect of low-potency antipsychotics on metabolism of risperidone (RIS). METHODS: A therapeutic drug monitoring database containing plasma concentrations of RIS and its metabolite 9-OH-RIS of 1584 patients was analyzed. Five groups were compared; a risperidone group (n=842) and four co- medication groups; a group co-medicated with chlorprothixene (n=67), a group with levomepromazine (n=32), a group with melperone (n=46), a group with pipamperone (n=63) and a group with prothipendyl (n=24)...
March 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28288856/environmental-enrichment-ameliorates-chronic-immobilisation-stress-induced-spatial-learning-deficits-and-restores-the-expression-of-bdnf-vegf-gfap-and-glucocorticoid-receptors
#12
B M Shilpa, V Bhagya, G Harish, M M Srinivas Bharath, B S Shankaranarayana Rao
Severe and prolonged stress is the main environmental factor that precipitates depression, anxiety and cognitive dysfunctions. On the other hand, exposure to environmental enrichment (EE) has been shown to induce progressive plasticity in the brain and improve learning and memory in various neurological and psychiatric disorders. It is not known whether exposure to enriched environment could ameliorate chronic immobilisation stress-induced cognitive deficits and altered molecular markers. Hence, in the present study we aimed to evaluate the effect of enriched environment on chronic immobilisation stress (CIS) associated changes in spatial learning and memory, behavioural measures of anxiety, depression and molecular markers as well as structural alterations...
March 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28288855/alterations-in-prefrontal-connectivity-in-schizophrenia-assessed-using-diffusion-magnetic-resonance-imaging
#13
Vicente Molina, Alba Lubeiro, Oscar Soto, Margarita Rodriguez, Aldara Álvarez, Rebeca Hernández, Rodrigo de Luis-García
BACKGROUND: Spatial and biological characteristics of structural frontal disconnectivity in schizophrenia remain incompletely understood. Simultaneous streamline count (SC) and fractional anisotropy (FA) analyses may yield relevant complementary information to this end. METHODS: Using 3T diffusion magnetic resonance imaging both SC and FA were calculated for the tracts linking lateral and medial subregions of prefrontal cortex (PFC) to cingulate, hippocampus, caudate and thalamus in 27 schizophrenia patients (14 first-episodes) and 27 controls...
March 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28284902/cognitive-behavioural-therapy-in-pain-and-psychological-disorders-towards-a-hybrid-future
#14
REVIEW
Nicole K Y Tang
Cognitive Behavioural Therapy (CBT) is a form of evidence-based talking therapy that emphasises the importance of behaviour and conscious thoughts in shaping our emotional experiences. As pain becomes increasingly accepted as not only a sensory but also an emotional experience, success in using CBT to treat emotional disorders has resulted in the incorporation of cognitive-behavioural principles into the management of chronic pain. Outcomes of CBT-informed interdisciplinary pain management programmes are modest at best, despite rapid methodological improvements in trial design and implementation...
March 8, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28282638/high-doses-of-antipsychotic-polypharmacy-are-related-to-an-increase-in-serum-levels-of-pentosidine-in-patients-with-schizophrenia
#15
Takahiro Sannohe, Tohru Ohnuma, Masayoshi Takeuchi, Eriko Tani, Yasue Miki, Mayu Takeda, Narimasa Katsuta, Yuto Takebayashi, Toru Nakamura, Shohei Nishimon, Ayako Kimoto, Ryoko Higashiyama, Nobuto Shibata, Tomohito Gohda, Yusuke Suzuki, Sho-Ichi Yamagishi, Yasuhiko Tomino, Heii Arai
BACKGROUND: Carbonyl stress in patients with schizophrenia has been reported to be reflected by an increase in peripheral pentosidine levels. This cohort study tested whether the accumulation of pentosidine was related to the disease severity or the treatment (routine administration of high antipsychotic doses). METHODS: We followed up our original investigation using a new group of 137 patients with acute schizophrenia and 45 healthy subjects, and then pooled the two cohorts to conduct the following analysis on a total of 274 patients...
March 7, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28263897/lewis-and-fischer-344-rats-as-a-model-for-genetic-differences-in-spatial-learning-and-memory-cocaine-effects
#16
Alberto Fole, Miguel Miguéns, Lidia Morales, Carmen González-Martín, Emilio Ambrosio, Nuria Del Olmo
Lewis (LEW) and Fischer 344 (F344) rats are considered a model of genetic vulnerability to drug addiction. We previously showed important differences in spatial learning and memory between them, but in contrast with previous experiments demonstrating cocaine-induced enhanced learning in Morris water maze (MWM) highly demanding tasks, the eight-arm radial maze (RAM) performance was not modified either in LEW or F344 rats after chronic cocaine treatment. In the present work, chronically cocaine-treated LEW and F344 adult rats have been evaluated in learning and memory performance using the Y-maze, two RAM protocols that differ in difficulty, and a reversal protocol that tests cognitive flexibility...
March 2, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28259723/influence-of-single-dose-quetiapine-on-fear-network-activity-a-pharmaco-imaging-study
#17
J Diemer, P Zwanzger, I Fohrbeck, M Zavorotnyy, S Notzon, K Silling, V Arolt, K Domschke, B Pfleiderer
OBJECTIVE: Anxiety disorders are among the most frequent psychiatric disorders. Current treatment guidelines recommend antidepressants, the calcium modulator gabapentin, and benzodiazepines as pharmacological treatments. However, delayed onset of action precludes the use of antidepressants as an acute treatment, while benzodiazepines can be recommended only as an emergency treatment due to their inherent risk of dependence. Therefore, an alternative pharmacological agent with acute efficacy is needed...
March 1, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28259722/oxytocin-mitigated-the-depressive-like-behaviors-of-maternal-separation-stress-through-modulating-mitochondrial-function-and-neuroinflammation
#18
Hossein Amini-Khoei, Ali Mohammadi-Asl, Shayan Amiri, Mir-Jamal Hosseini, Majid Momeny, Mahsa Hassanipour, Mojgan Rastegar, Arya Haj-Mirzaian, Arvin Haj Mirzaian, Hossein Sanjarimoghaddam, Shahram Ejtemaei Mehr, Ahmad Reza Dehpour
Mother-infant contact has a critical role on brain development and behavior. Experiencing early-life adversities (such as maternal separation stress or MS in rodents) results in adaptations of neurotransmission systems, which may subsequently increase the risk of depression symptoms later in life. In this study, we show that Oxytocin (OT) exerted antioxidant and anti-inflammatory properties. Previous studies indicate that neuroinflammation and mitochondrial dysfunction are associated with the pathophysiology of depression...
March 1, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28259721/neuroendocrinology-and-brain-imaging-of-reward-in-eating-disorders-a-possible-key-to-the-treatment-of-anorexia-nervosa-and-bulimia-nervosa
#19
REVIEW
Alessio Maria Monteleone, Giovanni Castellini, Umberto Volpe, Valdo Ricca, Lorenzo Lelli, Palmiero Monteleone, Mario Maj
Anorexia nervosa and bulimia nervosa are severe eating disorders whose etiopathogenesis is still unknown. Clinical features suggest that eating disorders may develop as reward-dependent syndromes, since eating less food is perceived as rewarding in anorexia nervosa while consumption of large amounts of food during binge episodes in bulimia nervosa aims at reducing the patient's negative emotional states. Therefore, brain reward mechanisms have been a major focus of research in the attempt to contribute to the comprehension of the pathophysiology of these disorders...
March 1, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28257853/cortical-features-of-distinct-developmental-trajectories-in-patients-with-delusional-infestation
#20
Dusan Hirjak, Markus Huber, Erwin Kirchler, Katharina M Kubera, Martin Karner, Fabio Sambataro, Roland W Freudenmann, Robert C Wolf
BACKGROUND: Although there is strong neuroimaging evidence that cortical alterations are a core feature of schizophrenia spectrum disorders, it still remains unclear to what extent such abnormalities occur in monothematic delusional disorders. In individuals with delusional infestation (DI), the delusional belief to be infested with pathogens, previous structural MRI studies have shown prefrontal, temporal, parietal, insular, thalamic and striatal gray matter volume changes. Differential contributions of cortical features of evolutionary and genetic origin (such as cortical thickness, area and folding) which may distinctly contribute to DI pathophysiology are unclear at present...
February 28, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
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