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https://www.readbyqxmd.com/read/29239239/depressive-disorders-in-patients-with-pharmaco-resistant-mesial-temporal-lobe-epilepsy
#1
Eleonora Borges Gonçalves, Tania Aparecida Marchiori de Oliveira Cardoso, Clarissa Lin Yasuda, Fernando Cendes
Objectives To assess depressive disorders in patients with mesial temporal lobe epilepsy (MTLE) refractory to medical treatment. Methods Adult patients with refractory MTLE completed two questionnaires (Mini International Neuropsychiatric Interview (MINI) and the Beck Depression Inventory (BDI) had a semi-structured psychiatric interview and a high resolution MRI scan. For complete neuropsychiatric diagnosis, as per International Classification of Diseases (ICD-10), the results were combined with clinical history and additional information from the patients' family...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29238972/the-functional-anatomy-of-the-cerebrocerebellar-circuit-a-review-and-new-concepts
#2
REVIEW
Vincenzo Benagiano, Anna Rizzi, Loredana Lorusso, Paolo Flace, Matteo Saccia, Raffaele Cagiano, Domenico Ribatti, Luisa Roncali, Glauco Ambrosi
The cerebrocerebellar circuit is a feedback circuit that bidirectionally connects the neocortex and the cerebellum. According to the classic view, the cerebrocerebellar circuit is specifically involved in the functional regulation of the motor areas of the neocortex. In recent years, studies carried out in experimental animals by morphological and physiological methods, and in humans by magnetic resonance imaging, have indicated that the cerebrocerebellar circuit is also involved in the functional regulation of the non-motor areas of the neocortex, including the prefrontal, associative, sensory and limbic areas...
December 14, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/29238291/modulation-of-neocortical-development-by-early-neuronal-activity-physiology-and-pathophysiology
#3
REVIEW
Sergei Kirischuk, Anne Sinning, Oriane Blanquie, Jenq-Wei Yang, Heiko J Luhmann, Werner Kilb
Animal and human studies revealed that patterned neuronal activity is an inherent feature of developing nervous systems. This review summarizes our current knowledge about the mechanisms generating early electrical activity patterns and their impact on structural and functional development of the cerebral cortex. All neocortical areas display distinct spontaneous and sensory-driven neuronal activity patterns already at early phases of development. At embryonic stages, intermittent spontaneous activity is synchronized within small neuronal networks, becoming more complex with further development...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29236921/intermittent-theta-burst-transcranial-magnetic-stimulation-for-autism-spectrum-disorder-an-open-label-pilot-study
#4
Caio Abujadi, Paul E Croarkin, Bianca B Bellini, Helena Brentani, Marco A Marcolin
OBJECTIVE: Theta-burst stimulation (TBS) modulates synaptic plasticity more efficiently than standard repetitive transcranial magnetic stimulation delivery and may be a promising modality for neuropsychiatric disorders such as autism spectrum disorder (ASD). At present there are few effective interventions for prefrontal cortex dysfunction in ASD. We report on an open-label, pilot study of intermittent TBS (iTBS) to target executive function deficits and restricted, repetitive behaviors in male children and adolescents with ASD...
December 11, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/29235430/prevalence-and-risk-factors-for-delirium-diagnosis-in-patients-followed-in-general-practices-in-germany
#5
Jens Bohlken, Karel Kostev
BACKGROUND: The aim of this study is to identify the prevalence and risk factors of documented delirium in general practices in Germany. METHODS: The present study includes 2,194 patients over the age of 65 years with delirium and 2,194 controls without delirium from a sample of 6,180,042 patients from 1,262 general practices. Multivariate logistic regression models were fitted with delirium as a dependent variable and other disorders and drugs as potential predictors...
December 13, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/29235398/antipsychotic-treatment-of-community-dwelling-and-institutionalised-patients-with-dementia-in-germany
#6
Philipp Hessmann, Richard Dodel, Erika Baum, Matthias J Müller, Greta Paschke, Bernhard Kis, Jan Zeidler, Mike Klora, Jens-Peter Reese, Monika Balzer-Geldsetzer
OBJECTIVE: A restrictive use of antipsychotic drugs in patients with Alzheimer's disease (AD) is recommended due to an increased risk of cerebrovascular events and mortality. We hypothesise that the prescription of antipsychotics is associated with the patients' socio-demographic and clinical status (e.g., dementia severity). METHODS: The prescription of antipsychotics was cross-sectionally evaluated in 272 community-dwelling and 123 institutionalised patients with AD across all severity stages of dementia...
December 13, 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/29235190/intrinsic-functional-connectivity-of-the-central-extended-amygdala
#7
Rachael M Tillman, Melissa D Stockbridge, Brendon M Nacewicz, Salvatore Torrisi, Andrew S Fox, Jason F Smith, Alexander J Shackman
The central extended amygdala (EAc)-including the bed nucleus of the stria terminalis (BST) and central nucleus of the amygdala (Ce)-plays a critical role in triggering fear and anxiety and is implicated in the development of a range of debilitating neuropsychiatric disorders. Although it is widely believed that these disorders reflect the coordinated activity of distributed neural circuits, the functional architecture of the EAc network and the degree to which the BST and the Ce show distinct patterns of functional connectivity is unclear...
December 12, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/29235100/embryonic-exposure-to-valproic-acid-affects-the-histaminergic-system-and-the-social-behavior-of-adult-zebrafish-danio-rerio
#8
Diego Baronio, Henri A J Puttonen, Maria Sundvik, Svetlana Semenova, Essi Lehtonen, Pertti Panula
BACKGROUND AND PURPOSE: Histamine modulates several behaviors and physiological functions and its deficiency is associated with neuropsychiatric disorders. Gestational intake of valproic acid (VPA) is linked to Autism Spectrum Disorder (ASD), which is characterized by impaired sociability and stereotypies. VPA effects on the neurochemistry and functional morphology of the histaminergic system in ASD are unclear. Zebrafish are highly social and given the similarities between zebrafish and human neurotransmitter systems, we decided to use zebrafish to study VPA effects on histamine...
December 12, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29235089/early-life-adversity-induced-third-ventricular-enlargement-in-young-adult-male-patients-suffered-from-major-depressive-disorder-a-study-of-brain-morphology
#9
Hongyi Zhao, Tingying Wei, Xiuzhen Li, Ter Ba
BACKGROUND: Early life adversity (ELA) is not uncommon in Major Depressive Disorder (MDD) patients. Childhood trauma has been reported more frequently in adult MDD patients relative to healthy control. Recent researches have demonstrated that ELA could result in changes in brain morphology which might be an etiological factor of MDD development. MATERIALS AND METHODS: We recruited 40 young adult patients suffered from MDD and made CT scan. Subjects were divided in two groups: MDD patients with ELA experience (E+D) vs MDD patients without ELA experience (E-D) according to Chinese version-Childhood Trauma Questionnaire (CTQ)...
December 13, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29234599/selecting-the-most-relevant-brain-regions-to-discriminate-alzheimer-s-disease-patients-from-healthy-controls-using-multiple-kernel-learning-a-comparison-across-functional-and-structural-imaging-modalities-and-atlases
#10
Jane Maryam Rondina, Luiz Kobuti Ferreira, Fabio Luis de Souza Duran, Rodrigo Kubo, Carla Rachel Ono, Claudia Costa Leite, Jerusa Smid, Ricardo Nitrini, Carlos Alberto Buchpiguel, Geraldo F Busatto
Background: Machine learning techniques such as support vector machine (SVM) have been applied recently in order to accurately classify individuals with neuropsychiatric disorders such as Alzheimer's disease (AD) based on neuroimaging data. However, the multivariate nature of the SVM approach often precludes the identification of the brain regions that contribute most to classification accuracy. Multiple kernel learning (MKL) is a sparse machine learning method that allows the identification of the most relevant sources for the classification...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29233751/differential-binding-of-antibodies-in-pandas-patients-to-cholinergic-interneurons-in-the-striatum
#11
Luciana Frick, Maximiliano Rapanelli, Kantiya Jindachomthong, Paul Grant, James F Leckman, Susan Swedo, Kyle Williams, Christopher Pittenger
Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcus, or PANDAS, is a syndrome of acute childhood onset of obsessive-compulsive disorder and other neuropsychiatric symptoms in the aftermath of an infection with Group A beta-hemolytic Streptococcus (GABHS). Its pathophysiology remains unclear. PANDAS has been proposed to result from cross-reactivity of antibodies raised against GABHS with brain antigens, but the targets of these antibodies are unclear and may be heterogeneous. We developed an in vivo assay in mice to characterize the cellular targets of antibodies in serum from individuals with PANDAS...
December 9, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29233469/olfactory-dysfunctions-in-drug-na%C3%A3-ve-parkinson-s-disease-with-mild-cognitive-impairment
#12
Jin-Woo Park, Do-Young Kwon, Ji Ho Choi, Moon-Ho Park, Ho-Kyoung Yoon
BACKGROUND: Evaluation of olfactory function is valuable for the detection of pre-motor state of Parkinson's disease (PD). PD patients have an increased risk of associated dementia and one-third of PD patients have mild cognitive impairment (MCI) at the time of diagnosis. However, the characteristics of olfactory dysfunction in PD-MCI patients are unclear. This study examined the relationship between olfactory dysfunction and cognitive function in drug-naïve PD at the time of diagnosis with the patterns of olfactory function in PD-MCI patients using the Korean version of the Sniffin' stick test II (KVSS II)...
November 14, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29233262/medicinal-chemistry-strategies-for-pet-tracer-discovery
#13
REVIEW
José Ignacio Andrés, Mark Schmidt
The detection of gamma rays, resulting from decay of positron emitting isotopes, allows exquisitely sensitive detection of probes radiolabeled with such isotopes. These probes can be designed for high affinity binding to specific molecular targets and be used as tools in the early development of drugs, particularly for neuropsychiatric disorders. Availability of novel tracers requires dedicated resources and selection assays. Many of the selection assays are similar to those used for discovery of clinical compounds, although the distribution and clearance of target specific radioligands requires different in vitro and in vivo methods and new derivatives...
November 2017: Drug Discovery Today. Technologies
https://www.readbyqxmd.com/read/29232967/a-latent-class-analysis-of-psychotic-symptoms-in-the-general-population
#14
Baptiste Pignon, Hugo Peyre, Andrei Szöke, Pierre A Geoffroy, Benjamin Rolland, Renaud Jardri, Pierre Thomas, Guillaume Vaiva, Jean-Luc Roelandt, Imane Benradia, Hélène Behal, Franck Schürhoff, Ali Amad
OBJECTIVE: Individuals with psychotic symptoms may actually correspond to various subgroups, characterized by different patterns of psychotic symptoms as well as specific sociodemographic and clinical correlates. We aimed to identify groups of individuals from the general population with specific patterns of psychotic symptoms. METHODS: In a 38,694-subject survey, a latent class analysis was performed to identify subgroups based on the distribution of seven psychotic symptoms taken from the Mini International Neuropsychiatric Interview...
December 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/29232493/-carboxyl-11c-labeling-of-four-high-affinity-cpla2a-inhibitors-and-their-evaluation-as-radioligands-in-mice-with-positron-emission-tomography
#15
Martin J Fisher, Lindsay McMurray, Shuiyu Lu, Cheryl L Morse, Jeih-San Liow, Sami S Zoghbi, Aneta Kowalski, Geroge L Tye, Robert B Innis, Franklin I Aigbirhio, Victor W Pike
Cytosolic phospholipase A2α (cPLA2α) may play a critical role in neuropsychiatric and neurodegenerative disorders associated with oxidative stress and neuroinflammation. An effective PET radioligand for imaging cPLA2α in living brain might prove useful for biomedical research, especially on neuroinflammation. We selected four high-affinity (IC50 2.1 to 12 nM) indole-5-carboxylic acid-based inhibitors of cPLA2α (1-4), for labelling in carboxyl position with carbon-11 (t1/2 = 20.4 min) to provide candidate PET radioligands for imaging brain cPLA2α...
December 12, 2017: ChemMedChem
https://www.readbyqxmd.com/read/29231139/catechol-o-methyltransferase-cognition-and-alzheimer-s-disease
#16
Matea Nikolac Perkovic, Dubravka Svob Strac, Lucija Tudor, Marcela Konjevod, Gordana Nedic Erjavec, Nela Pivac
OBJECTIVE: Cognition is a complex trait representing a set of all mental abilities and processes related to knowledge. Although diverse brain regions are involved, most cognitive processes appear to engage cortical regions. The activity of dopaminergic neurons in prefrontal cortex represents a biological substrate underlying cognitive functions. Alzheimer's disease (AD) is the most frequent dementia associated with cognitive impairments. Cognitive impairment in AD starts slow with discrete deterioration in memory, language, thinking and reasoning, but it progresses into more severe and debilitating cognitive dysfunction...
December 11, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/29230395/thc-treatment-alters-glutamate-receptor-gene-expression-in-human-stem-cell-derived-neurons
#17
Ifeanyi V Obiorah, Hamza Muhammad, Khalifa Stafford, Erin K Flaherty, Kristen J Brennand
Given the cognitive and behavioral effects following in utero Δ9-tetrahydrocannabinol (THC) exposure that have been reported in humans and rodents, it is critical to understand the precise consequences of THC on developing human neurons. Here, we utilize excitatory neurons derived from human-induced pluripotent stem cells (hiPSCs), and report that in vitro THC exposure reduced expression of glutamate receptor subunit genes (GRIA1, GRIA2, GRIN2A, and GRIN2B). By expanding these studies across hiPSC-derived neurons from individuals with a variety of genotypes, we believe that a hiPSC-based model will facilitate studies of the interaction of THC exposure and the genetic risk factors underlying neuropsychiatric disease vulnerability...
November 2017: Molecular Neuropsychiatry
https://www.readbyqxmd.com/read/29230145/practical-issues-in-the-management-of-overt-hepatic-encephalopathy
#18
Ganesh Pantham, Kevin D Mullen
Hepatic encephalopathy (HE) is a condition that encompasses a range of neuropsychiatric abnormalities in patients with significant liver disease. Overt HE occurs in approximately 30% to 45% of patients with cirrhosis. This article discusses practical issues in the management of patients with overt HE and cirrhosis, including a recently developed 4-pronged approach that consists of identifying and correcting precipitating factors, recognizing and treating concomitant medical conditions, commencing empiric treatment, and caring for the unconscious patient...
November 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29230022/trained-innate-immunity-a-salient-factor-in-the-pathogenesis-of-neuroimmune-psychiatric-disorders
#19
A P Salam, A Borsini, P A Zunszain
Historically, only cells of the adaptive immune system have been considered capable of retaining memory for infectious challenges. Recently, however, cells of the innate immune system have been shown to be capable of displaying long-term functional memory following a single immunostimulatory challenge, leading to enhanced production of proinflammatory molecules upon other subsequent, and temporally distant, immunostimulatory challenges. This effect has been termed 'trained innate immunity', and is underwritten by stable epigenetic changes in immune and metabolic pathways...
December 12, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29229589/the-effect-of-group-support-psychotherapy-delivered-by-trained-lay-health-workers-for-depression-treatment-among-people-with-hiv-in-uganda-protocol-of-a-pragmatic-cluster-randomized-trial
#20
Etheldreda Nakimuli-Mpungu, Seggane Musisi, Kizito Wamala, James Okello, Sheila Ndyanabangi, Ramin Mojtabai, Jean Nachega, Ofir Harari, Edward Mills
BACKGROUND: There is limited information on the effectiveness of task shifting of mental health services in populations with HIV. OBJECTIVE: This trial aims to evaluate the effectiveness of group support psychotherapy delivered by trained lay health workers to persons living with HIV (PLWH) with depression in primary care. METHODS: Thirty eligible primary care health centers across three districts were randomly allocated to have their lay health workers trained to deliver group support psychotherapy (intervention arm) or group HIV education and treatment as usual (control arm) to PLWH with depression...
December 11, 2017: JMIR Research Protocols
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