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https://www.readbyqxmd.com/read/29301614/metabotropic-glutamate-receptors-2-and-3-as-targets-for-treating-nicotine-addiction
#1
REVIEW
Alan J Cross, Robert Anthenelli, Xia Li
Tobacco smoking, driven by the addictive properties of nicotine, continues to be a worldwide health problem. Based on the well-established role of glutamatergic neurotransmission in drug addiction, novel medication development strategies seek to halt nicotine consumption and prevent relapse to tobacco smoking by modulating glutamate transmission. The presynaptic inhibitory metabotropic glutamate receptors 2 and 3 (mGluR2/3) are key autoreceptors on glutamatergic terminals that maintain glutamate homeostasis...
November 21, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29286389/differentiation-of-mouse-embryonic-stem-cells-into-cortical-interneuron-precursors
#2
David J Tischfield, Stewart A Anderson
GABAergic cortical interneurons are a heterogeneous population of cells that play critical roles in regulating the output of excitatory pyramidal neurons as well as synchronizing the outputs of pyramidal neuron ensembles. Deficits in interneuron function have been implicated in a variety of neuropsychiatric disorders, including schizophrenia, autism, and epilepsy. The derivation of cortical interneurons from embryonic stem cells not only allows for the study of their development and function, but provides insight into the molecular mechanisms underlying the pathogenesis of cortical interneuron-related disorders...
December 3, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29283064/glycogen-synthase-kinase-3%C3%AE-as-a-putative-therapeutic-target-for-bipolar-disorder
#3
Manoj P Dandekar, Samira S Valvassori, Gustavo Colombo Dal-Pont, Joao L DeQuevedo
BACKGROUND: Bipolar disorder (BD) is a debilitating mental ailment characterized by recurrent episodes of mania and depression. Primary mood-stabilizing drugs like lithium and valproate alleviate the hypomanic or mild to moderate manic episodes in patients with BD. One of the extensively studied underlying mechanisms for these pharmacological interventions is inhibition of intracellular signaling cascades associated with glycogen synthase kinase-3 beta (GSK-3β), a multi-functional serine-threonine kinase...
December 27, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/29250591/shank-proteins-differentially-regulate-synaptic-transmission
#4
Rebecca Shi, Patrick Redman, Dipanwita Ghose, Yan Liu, Xiaobai Ren, Lei J Ding, Mingna Liu, Kendrick J Jones, Weifeng Xu
Shank proteins, one of the principal scaffolds in the postsynaptic density (PSD) of the glutamatergic synapses, have been associated with autism spectrum disorders and neuropsychiatric diseases. However, it is not known whether different Shank family proteins have distinct functions in regulating synaptic transmission, and how they differ from other scaffold proteins in this aspect. Here, we investigate the role of Shanks in regulating glutamatergic synaptic transmission at rat hippocampal SC-CA1 synapses, using lentivirus-mediated knockdown and molecular replacement combined with dual whole-cell patch clamp in hippocampal slice culture...
November 2017: ENeuro
https://www.readbyqxmd.com/read/29201025/regulation-of-neuroinflammation-what-role-for-the-tumor-necrosis-factor-like-weak-inducer-of-apoptosis-fn14-pathway
#5
REVIEW
Audrey Boulamery, Sophie Desplat-Jégo
Observed in many central nervous system diseases, neuroinflammation (NI) proceeds from peripheral immune cell infiltration into the parenchyma, from cytokine secretion and from oxidative stress. Astrocytes and microglia also get activated and proliferate. NI manifestations and consequences depend on its context and on the acute or chronic aspect of the disease. The tumor necrosis factor-like weak inducer of apoptosis (TWEAK)/Fn14 pathway has been involved in chronic human inflammatory pathologies such as neurodegenerative, autoimmune, or malignant diseases...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29197740/gene-set-enrichment-analysis-and-expression-pattern-exploration-implicate-an-involvement-of-neurodevelopmental-processes-in-bipolar-disorder
#6
Thomas W Mühleisen, Céline S Reinbold, Andreas J Forstner, Lilia I Abramova, Martin Alda, Gulja Babadjanova, Michael Bauer, Paul Brennan, Alexander Chuchalin, Cristiana Cruceanu, Piotr M Czerski, Franziska Degenhardt, Sascha B Fischer, Janice M Fullerton, Scott D Gordon, Maria Grigoroiu-Serbanescu, Paul Grof, Joanna Hauser, Martin Hautzinger, Stefan Herms, Per Hoffmann, Jutta Kammerer-Ciernioch, Elza Khusnutdinova, Manolis Kogevinas, Valery Krasnov, André Lacour, Catherine Laprise, Markus Leber, Jolanta Lissowska, Susanne Lucae, Anna Maaser, Wolfgang Maier, Nicholas G Martin, Manuel Mattheisen, Fermin Mayoral, James D McKay, Sarah E Medland, Philip B Mitchell, Susanne Moebus, Grant W Montgomery, Bertram Müller-Myhsok, Lilijana Oruc, Galina Pantelejeva, Andrea Pfennig, Lejla Pojskic, Alexey Polonikov, Andreas Reif, Fabio Rivas, Guy A Rouleau, Lorena M Schenk, Peter R Schofield, Markus Schwarz, Fabian Streit, Jana Strohmaier, Neonila Szeszenia-Dabrowska, Alexander S Tiganov, Jens Treutlein, Gustavo Turecki, Helmut Vedder, Stephanie H Witt, Thomas G Schulze, Marcella Rietschel, Markus M Nöthen, Sven Cichon
BACKGROUND: Bipolar disorder (BD) is a common and highly heritable disorder of mood. Genome-wide association studies (GWAS) have identified several independent susceptibility loci. In order to extract more biological information from GWAS data, multi-locus approaches represent powerful tools since they utilize knowledge about biological processes to integrate functional sets of genes at strongly to moderately associated loci. METHODS: We conducted gene set enrichment analyses (GSEA) using 2...
November 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29166585/brain-immunity-gut-big-links-between-pregnancy-and-autism
#7
Myka L Estes, A Kimberley McAllister
Although dysregulation of brain, immune, and gut physiology during pregnancy have each been implicated in neuropsychiatric disorders, whether and how these presumably distinct systems are linked to cause disease is unclear. Kim et al. (2017) and Shin Yim et al. (2017) identify a pathway to explain how these aspects of our physiology are deeply and inextricably connected.
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29163089/the-bachd-rat-model-of-huntington-disease-shows-specific-deficits-in-a-test-battery-of-motor-function
#8
Giuseppe Manfré, Erik K H Clemensson, Elisavet I Kyriakou, Laura E Clemensson, Johanneke E van der Harst, Judith R Homberg, Huu Phuc Nguyen
Rationale: Huntington disease (HD) is a progressive neurodegenerative disorder characterized by motor, cognitive and neuropsychiatric symptoms. HD is usually diagnosed by the appearance of motor deficits, resulting in skilled hand use disruption, gait abnormality, muscle wasting and choreatic movements. The BACHD transgenic rat model for HD represents a well-established transgenic rodent model of HD, offering the prospect of an in-depth characterization of the motor phenotype. Objective: The present study aims to characterize different aspects of motor function in BACHD rats, combining classical paradigms with novel high-throughput behavioral phenotyping...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29147139/insights-into-the-management-of-wilson-s-disease
#9
REVIEW
Mohmadshakil Kathawala, Gideon M Hirschfield
Wilson's disease is a rare, inherited autosomal recessive disease of copper metabolism, in which the causative gene, ATP7B, results in absent or reduced function of the ATP7B transporter important for biliary excretion of copper and incorporation of copper into caeruloplasmin. Affected patients accumulate excessive copper within the liver, brain and other tissues. A disease mainly of children, adolescents and young adults; clinical features vary from the asymptomatic state to chronic liver disease, acute liver failure, and neuropsychiatric manifestations...
November 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29125499/mast-cells-in-the-brain%C3%A2-old-cells-new-target
#10
Giovanna Traina
Mast cells (MCs) are mainly known for their involvement on allergic reactions through degranulation and release of vasoactive, inflammatory and nociceptive mediators. Upon encountering an allergen, MCs are first responders, true sensors of the environment, actually they respond to a wide range of "danger" signals both immunological and non-immunological in rapid and selective manner. They secrete both preformed and newly synthesized mediators acting as effectors in relationship between nervous, vascular and immune systems...
November 7, 2017: Journal of Integrative Neuroscience
https://www.readbyqxmd.com/read/29104810/management-of-psychosis-in-parkinson-s-disease-emphasizing-clinical-subtypes-and-pathophysiological-mechanisms-of-the-condition
#11
REVIEW
Raquel N Taddei, Seyda Cankaya, Sandeep Dhaliwal, K Ray Chaudhuri
Investigation into neuropsychiatric symptoms in Parkinson's disease (PD) is sparse and current drug development is mainly focused on the motor aspect of PD. The tight association of psychosis with an impaired quality of life in PD, together with an important underreporting of this comorbid condition, contributes to its actual insufficient assessment and management. Furthermore, the withdrawal from access to readily available treatment interventions is unacceptable and has an impact on PD prognosis. Despite its impact, to date no standardized guidelines to the adequate management of PD psychosis are available and they are therefore highly needed...
2017: Parkinson's Disease
https://www.readbyqxmd.com/read/29102367/-the-psychiatric-comorbidity-of-anorexia-nervosa-a-comparative-study-in-a-population-of-french-and-greek-anorexic-patients
#12
M Kountza, G Garyfallos, D Ploumpidis, E Varsou, I Gkiouzepas
OBJECTIVE: The current study had two objectives: (1) to access the psychiatric comorbidity in axis I and axis II (according to DSM-IV) of anorexia nervosa in a sample of 60 anorexic patients; (2) to compare the features of the psychiatric comorbidity between the two groups of French and Greek anorexic patients who participated in the study, as well as to compare some psychological and behavioral aspects of their anorectic psychopathology. METHOD: Sixty anorexic patients, thirty French and thirty Greek, aged between 18 and 60 years, referred for evaluation and therapy at the unit of eating disorders at the "Institut national Marcel-Rivière of the MGEN" (hôpital de La Verrière, France) and at the unit of eating disorders of the First Department of Psychiatry of EGINITIO University Psychiatric Hospital in Athens (Greece), were accessed with the Eating Attitudes Test-26 (EAT26), Eating Disorder Inventory (EDI), Symptom Checklist-90-Revised (SCL90R), Mini International Neuropsychiatric Interview, Version 5...
November 1, 2017: L'Encéphale
https://www.readbyqxmd.com/read/29099544/catatonia-update
#13
Kanwarjeet Brar, Sachin S Kaushik, Steven Lippmann
Catatonia is a neuropsychiatric condition characterized by physical presentations ranging from profound immobility to excessive motor activity. Emotional aspects of catatonia vary clinically between psychomotor retardation and extreme excitability. In the past, catatonia was considered to be a variant of schizophrenia. However, the disorder actually occurs as a clinical expression of many different psychiatric, neurologic, or medical diagnoses. A prompt diagnostic evaluation should identify any underlying diseases with consideration of somatic pathologies, especially those affecting central nervous system function...
October 26, 2017: Primary Care Companion to CNS Disorders
https://www.readbyqxmd.com/read/29064807/-central-nervous-system-involvement-in-systemic-lupus-erythematosus-diagnosis-and-therapy
#14
Magdalena Szmyrka
Nervous system involvement in lupus belongs to its severe complications and significantly impacts its prognosis. Neuropsychiatric lupus includes 19 disease manifestations concerning both central and peripheral nervous system. This paper presents clinical aspects of central nervous system involvement in lupus. It reviews its epidemiology, risk factors and principles of diagnosis and therapy.
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29037340/-neuropsychiatry-of-movement-disorders
#15
Juan Manuel Orjuela-Rojas, Gustavo Adolfo Barrios Vincos, Melisa Alejandra Martínez Gallego
Movement disorders can be defined as neurological syndromes presenting with excessive or diminished automatic or voluntary movements not related to weakness or spasticity. Both Parkinson's disease (PD) and Huntington's disease (HD) are well-known examples of these syndromes. The high prevalence of comorbid psychiatric symptoms like depression, anxiety, obsessive-compulsive symptoms, hallucinations, delusions, impulsivity, sleep disorders, apathy and cognitive impairment mean that these conditions must be regarded as neuropsychiatric diseases...
October 2017: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/29037336/neuropsychiatry-towards-a-philosophy-of-praxis
#16
Jesús Ramirez-Bermudez, Rodrigo Perez-Esparza, Luis Carlos Aguilar-Venegas, Perminder Sachdev
Neuropsychiatry is a specialized clinical, academic and scientific discipline with its field located in the borderland territory between neurology and psychiatry. In this article, we approach the theoretical definition of neuropsychiatry, and in order to address the practical aspects of the discipline, we describe the profile of a neuropsychiatric liaison service in the setting of a large hospital for neurological diseases in a middle-income country. An audit of consecutive in-patients requiring neuropsychiatric assessment at the National Institute of Neurology and Neurosurgery of Mexico is reported, comprising a total of 1212 patients...
October 2017: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/29033604/chronic-pain-and-adult-hippocampal-neurogenesis-translational-implications-from-preclinical-studies
#17
Mariagrazia Grilli
Adult hippocampal neurogenesis (ahNG) occurs in the human brain. Adult generated neurons have been proposed to functionally contribute to relevant hippocampal functions such as learning and memory, mood regulation, and stress response. Learning, environmental enrichment, and physical exercise exert positive effects on ahNG. In parallel, these proneurogenic stimuli have been shown to ameliorate cognitive performance and/or depressive-like behavior in animal models. Conversely, aging, social isolation, and chronic stress exert negative effects on ahNG...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28994786/touchscreen-sustained-attention-task-sat-for-rats
#18
Debra A Bangasser, Brittany Wicks, David E Waxler, Samantha R Eck
Sustained attention is the ability to monitor intermittent and unpredictable events over a prolonged period of time. This attentional process subserves other aspects of cognition and is disrupted in certain neurodevelopmental, neuropsychiatric, and neurodegenerative disorders. Thus, it is clinically important to identify mechanisms that impair and improve sustained attention. Such mechanisms are often first discovered using rodent models. Therefore, several behavior procedures for testing aspects of sustained attention have been developed for rodents...
September 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28987462/the-developing-utility-of-zebrafish-models-of-neurological-and-neuropsychiatric-disorders-a-critical-review
#19
REVIEW
Barbara D Fontana, Nathana J Mezzomo, Allan V Kalueff, Denis B Rosemberg
Zebrafish (Danio rerio) have become a powerful tool in neuroscience research due to their genetic tractability, molecular/physiological conservation, small body size, ease of experimental manipulations in vivo, and rich behavioral repertoire. Zebrafish models and tests are particularly useful in genetics research, neurophenotyping, CNS drug screening, as well as in modeling complex neurological and psychiatric disorders. Here, we discuss selected examples of successful application of zebrafish models to mimicking various aspects of brain pathology, and emphasize their developing utility for studying the underlying molecular and genetic mechanisms...
October 5, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28984590/disinhibition-in-alzheimer-s-disease-is%C3%A2-associated-with-reduced-right-frontal-pole-cortical-thickness
#20
Elizabeth Finger, Jing Zhang, Bradford Dickerson, Yves Bureau, Mario Masellis
Neuropsychiatric symptoms in Alzheimer's disease are among the most disabling and difficult aspects for caregivers and treating health professionals to manage. Despite the high prevalence of these behaviors, little is known about the factors which lead some patients to develop florid behavioral symptoms while others may progress to severe dementia without such phenomenon. We examined whether regional brain volumes as measured by cortical thickness would predict the presence or absence of disinhibition in patients with Alzheimer's disease...
2017: Journal of Alzheimer's Disease: JAD
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