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https://www.readbyqxmd.com/read/29156690/abnormal-amplitude-of-low-frequency-fluctuations-associated-with-rapid-eye-movement-in-chronic-primary-insomnia-patients
#1
Qian Ran, Jia Chen, Chuan Li, Li Wen, Faguo Yue, Tongsheng Shu, Jianxun Mi, Guangxian Wang, Lei Zhang, Dong Gao, Dong Zhang
Purpose: Chronic primary insomnia (CPI) is the most prevalent sleep disorder worldwide. CPI manifests as difficulties in sleep onset, maintaining sleep, prolonged sleep latency, and daytime impairment and is often accompanied by cognitive problems such as poor academic performance, poor attention, and decreased memory. The most popular explanation of insomnia is hyperarousal or increased activities of neurons. Rapid eye movement (REM) sleep detected by polysomnography (PSG) exhibits a positive relationship with brain homeostasis and can be helpful for optimally preparing an organism for emotional and social function...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156684/a-prenatal-interruption-of-disc1-function-in-the-brain-exhibits-a-lasting-impact-on-adult-behaviors-brain-metabolism-and-interneuron-development
#2
Dazhi Deng, Chongdong Jian, Ling Lei, Yijing Zhou, Colleen McSweeney, Fengping Dong, Yilun Shen, Donghua Zou, Yonggang Wang, Yuan Wu, Limin Zhang, Yingwei Mao
Mental illnesses like schizophrenia (SCZ) and major depression disorder (MDD) are devastating brain disorders. The SCZ risk gene, disrupted in schizophrenia 1 (DISC1), has been associated with neuropsychiatric conditions. However, little is known regarding the long-lasting impacts on brain metabolism and behavioral outcomes from genetic insults on fetal NPCs during early life. We have established a new mouse model that specifically interrupts DISC1 functions in NPCs in vivo by a dominant-negative DISC1 (DN-DISC1) with a precise temporal and spatial regulation...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156419/segmentation-of-the-hippocampus-by-transferring-algorithmic-knowledge-for-large-cohort-processing
#3
Benjamin Thyreau, Kazunori Sato, Hiroshi Fukuda, Yasuyuki Taki
The hippocampus is a particularly interesting target for neuroscience research studies due to its essential role within the human brain. In large human cohort studies, bilateral hippocampal structures are frequently identified and measured to gain insight into human behaviour or genomic variability in neuropsychiatric disorders of interest. Automatic segmentation is performed using various algorithms, with FreeSurfer being a popular option. In this manuscript, we present a method to segment the bilateral hippocampus using a deep-learned appearance model...
November 10, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/29156364/pattern-recognition-of-magnetic-resonance-imaging-based-gray-matter-volume-measurements-classifies-bipolar-disorder-and-major-depressive-disorder
#4
Harry Rubin-Falcone, Francesca Zanderigo, Binod Thapa-Chhetry, Martin Lan, Jeffrey M Miller, M Elizabeth Sublette, Maria A Oquendo, David J Hellerstein, Patrick J McGrath, Johnathan W Stewart, J John Mann
BACKGROUND: Bipolar Disorder (BD) cannot be reliably distinguished from Major Depressive Disorder (MDD) until the first manic or hypomanic episode. Consequently, many patients with BD are treated with antidepressants without mood stabilizers, a strategy that is often ineffective and carries a risk of inducing a manic episode. We previously reported reduced cortical thickness in right precuneus, right caudal middle-frontal cortex and left inferior parietal cortex in BD compared with MDD...
November 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29156319/large-scale-analysis-of-herpesviridae-in-epilepsy-patients-with-signs-of-autoimmune-encephalitis
#5
Freya Poulheim, Laura Esposito, Christian E Elger, Anna M Eis-Hübinger, Albert J Becker, Pitt Niehusmann
PURPOSE: Epilepsy is one of the most common primary brain disorders. Nonparaneoplastic autoimmune encephalitis is increasingly recognized as an important cause of adult onset epilepsy. However, only in rare cases an initiating factor of the syndrome can be identified. Autoantibody detection after central nervous herpesvirus infection indicates a postviral etiology in a subgroup of patients. In order to analyze a possible underrecognition of postinfectious autoimmunity we performed a large-scale analysis of herpesvirus DNA in cerebrospinal fluid samples from patients with clinical signs of autoimmune encephalitis...
November 17, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29156226/frequency-of-brain-mri-abnormalities-in-neuromyelitis-optica-spectrum-disorder-at-presentation-a-cohort-of-latin-american-patients
#6
Edgar Carnero Contentti, Vanessa Daccach Marques, Ibis Soto de Castillo, Veronica Tkachuk, Amilton Antunes Barreira, Elizabeth Armas, Edson Chiganer, Camila de Aquino Cruz, José Luis Di Pace, Javier Pablo Hryb, Carolina Lavigne Moreira, Carmen Lessa, Omaira Molina, Monica Perassolo, Arnoldo Soto, Alejandro Caride
BACKGROUND: Brain magnetic resonance imaging (BMRI) lesions were classically not reported in neuromyelitis optica (NMO). However, BMRI lesions are not uncommon in NMO spectrum disorder (NMOSD) patients. OBJECTIVE: To report BMRI characteristic abnormalities (location and configuration) in NMOSD patients at presentation. METHODS: Medical records and BMRI characteristics of 79 patients with NMOSD (during the first documented attack) in Argentina, Brazil and Venezuela were reviewed retrospectively...
November 8, 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29155938/cerebral-autoregulation-in-cardiopulmonary-bypass-surgery-a-systematic-review
#7
Juliana R Caldas, Victoria J Haunton, Ronney B Panerai, Ludhmila A Hajjar, Thompson G Robinson
Cardiopulmonary bypass surgery is associated with a high incidence of neurological complications, including stroke, delirium and cognitive impairment. The development of strategies to reduce the incidence of such neurological events has been hampered by the lack of a clear understanding of their pathophysiology. Cerebral autoregulation (CA), which describes the ability of the brain to maintain a stable cerebral blood flow over a wide range of cerebral perfusion pressures despite changes in blood pressure, is known to be impaired in various neurological disorders...
November 16, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29155801/a-comparative-expression-analysis-of-isocitrate-dehydrogenase-3-gene-and-protein-levels-in-postmortem-brain-tissues-from-subjects-with-bipolar-disorder
#8
G Scola, A C Andreazza, L T Young
No abstract text is available yet for this article.
July 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29155766/assessment-of-blood-brain-barrier-permeability-by-intravenous-infusion-of-fitc-labeled-albumin-in-a-mouse-model-of-neurodegenerative-disease
#9
Alba Di Pardo, Salvatore Castaldo, Luca Capocci, Enrico Amico, Maglione Vittorio
Disruption of blood-brain barrier (BBB) integrity is a common feature for different neurological and neurodegenerative diseases. Although the interplay between perturbed BBB homeostasis and the pathogenesis of brain disorders needs further investigation, the development and validation of a reliable procedure to accurately detect BBB alterations may be crucial and represent a useful tool for potentially predicting disease progression and developing targeted therapeutic strategies. Here, we present an easy and efficient procedure for evaluating BBB leakage in a neurodegenerative condition like that occurring in a preclinical mouse model of Huntington disease, in which defects in the permeability of BBB are clearly detectable precociously in the disease...
November 8, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155259/polyi-c-model-of-schizophrenia-in-rats-induces-functional-brain-changes-detected-by-mri-irreversible-by-aripiprazole-treatment
#10
Eva Drazanova, Jana Ruda-Kucerova, Lucie Kratka, Katerina Horska, Regina Demlova, Zenon Starcuk, Tomas Kasparek
BACKGROUND AND PURPOSE: One of the hallmarks of schizophrenia is altered brain structure, potentially due to antipsychotic treatment, the disorder itself or both. It was proposed that functional changes may precede the structural ones. In order to understand and potentially prevent this unwanted process, brain function assessment should be validated as a diagnostic tool. METHODS: We used Arterial Spin Labelling MRI technique for the evaluation of brain perfusion in several brain regions in a neurodevelopmental poly(I:C) model of schizophrenia (8 mg/kg on a gestational day 15) in rats taking into account sex-dependent effects and chronic treatment with aripiprazole (30 days), an atypical antipsychotic acting as a partial agonist on dopaminergic receptors...
November 16, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29155254/association-of-riluzole-and-dantrolene-improves-significant-recovery-after-acute-spinal-cord-injury-in-rats
#11
Bernardo De Caro Martins, Bruno Benetti Junta Torres, Karen Maciel de Oliveira, Mario Sergio Lavor, Carla Maria Osório, Fabiola Bono Fukushima, Isabel Rodrigues Rosado, Eliane Gonçalves de Melo
BACKGROUND CONTEXT: Damage to the spinal cord can result in irreversible impairment or complete loss of motor, sensory, and autonomic functions. Riluzole and dantrolene have been shown to provide neuroprotection by reducing neuronal apoptosis after brain and spinal cord injury (SCI) in several animal models of neurological disorders. As these drugs protect the injured spinal cord through different mechanisms, we investigated the cumulative effects of riluzole and dantrolene. PURPOSE: This study aimed to investigate the neuroprotective efficacy of the combined administration of riluzole and dantrolene in experimental thoracic SCI...
November 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29155224/medical-encounter-mental-health-diagnoses-non-fatal-injury-and-polypharmacy-indicators-of-risk-for-accident-death-in-the-us-army-enlisted-soldiers-2004-2009
#12
Lisa Lewandowski-Romps, Heather M Schroeder, Patricia A Berglund, Lisa J Colpe, Kenneth Cox, Keith Hauret, Jeffrey D Hay, Bruce Jones, Roderick J A Little, Colter Mitchell, Michael Schoenbaum, Paul Schulz, Murray B Stein, Robert J Ursano, Steven G Heeringa
Accidents are a leading cause of deaths in U.S. active duty personnel. Understanding accident deaths during wartime could facilitate future operational planning and inform risk prevention efforts. This study expands prior research, identifying health risk factors associated with U.S. Army accident deaths during the Afghanistan and Iraq war. Military records for 2004-2009 enlisted, active duty, Regular Army soldiers were analyzed using logistic regression modeling to identify mental health, injury, and polypharmacy (multiple narcotic and/or psychotropic medications) predictors of accident deaths for current, previously, and never deployed groups...
November 16, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/29154937/effect-of-human-recombinant-prourokinase-rhpro-uk-on-thromboembolic-stroke-in-rats
#13
Chun-Hua Hao, Wen-Xia Ding, Qian Sun, Xin-Xin Li, Wei-Ting Wang, Zhuan-You Zhao, Li-da Tang
We evaluated the efficacy and safety of human recombinant prourokinase ( rhpro-UK) on thromboembolic stroke in rats. 60 rats with thromboembolic stroke were divided into 6 groups(n=10). The model group was given saline, the reagent groups were given rhpro-UK (5, 10, 20×10(4) U/kg), and positive control groups were given urokinase (UK) 10×10(4) U/kg and recombinant tissue plasminogen activator (rt-PA) 9mg/kg through intravenous infusion at 1.5h after embolism. And other 10 rats without occluded by autologous blood clots as the sham group were given saline...
November 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29154696/applied-machine-learning-method-to-predict-children-with-adhd-using-prefrontal-cortex-activity-a-multicenter-study-in-japan
#14
Akira Yasumura, Mikimasa Omori, Ayako Fukuda, Junichi Takahashi, Yukiko Yasumura, Eiji Nakagawa, Toshihide Koike, Yushiro Yamashita, Tasuku Miyajima, Tatsuya Koeda, Masao Aihara, Hisateru Tachimori, Masumi Inagaki
OBJECTIVE: To establish valid, objective biomarkers for ADHD using machine learning. METHOD: Machine learning was used to predict disorder severity from new brain function data, using a support vector machine (SVM). A multicenter approach was used to collect data for machine learning training, including behavioral and physiological indicators, age, and reverse Stroop task (RST) data from 108 children with ADHD and 108 typically developing (TD) children. Near-infrared spectroscopy (NIRS) was used to quantify change in prefrontal cortex oxygenated hemoglobin during RST...
November 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/29154684/brain-functional-connectivity-in-headache-disorders-a-narrative-review-of-mri-investigations
#15
Catherine D Chong, Todd J Schwedt, Anders Hougaard
Resting-state functional magnetic resonance imaging (rs-fMRI) is used to interrogate the functional connectivity and network organization amongst brain regions. Functional connectivity is determined by measuring the extent of synchronization in the spontaneous fluctuations of blood oxygenation level dependent (BOLD) signal. Here, we review current rs-fMRI studies in headache disorders including migraine, trigeminal autonomic cephalalgias, and medication overuse headache. We discuss (1) brain network alterations that are shared amongst the different headache disorders and (2) network abnormalities distinct to each headache disorder...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29154484/memantine-loaded-pegylated-biodegradable-nanoparticles-for-the-treatment-of-glaucoma
#16
Elena Sánchez-López, Maria Antonia Egea, Benjamin Michael Davis, Li Guo, Marta Espina, Amelia Maria Silva, Ana Cristina Calpena, Eliana Maria Barbosa Souto, Nivedita Ravindran, Miren Ettcheto, Antonio Camins, Maria Luisa García, Maria Francesca Cordeiro
Glaucoma is a multifactorial neurodegenerative disease associated with retinal ganglion cells (RGC) loss. Increasing reports of similarities in glaucoma and other neurodegenerative conditions have led to speculation that therapies for brain neurodegenerative disorders may also have potential as glaucoma therapies. Memantine is an N-methyl-d-aspartate (NMDA) antagonist approved for Alzheimer's disease treatment. Glutamate-induced excitotoxicity is implicated in glaucoma and NMDA receptor antagonism is advocated as a potential strategy for RGC preservation...
November 20, 2017: Small
https://www.readbyqxmd.com/read/29154458/epigenetic-mechanisms-of-major-depression-targeting-neuronal-plasticity
#17
REVIEW
Shusaku Uchida, Hirotaka Yamagata, Tomoe Seki, Yoshifumi Watanabe
Major depressive disorder is one of the most common mental illnesses as it affects more than 350 million people globally. Major depressive disorder is etiologically complex and disabling. Genetic factors play a role in the etiology of major depression. However, identical twin studies have shown high rates of discordance, indicating non-genetic mechanisms as well. For instance, stressful life events increase the risk of depression. Environmental stressors also induce stable changes in gene expression within the brain that may lead to maladaptive neuronal plasticity in regions implicated in disease pathogenesis...
November 20, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/29154365/is-neural-processing-of-negative-stimuli-altered-in-addiction-independent-of-drug-effects-findings-from-drug-na%C3%A3-ve-youth-with-internet-gaming-disorder
#18
Sarah W Yip, James J Gross, Megha Chawla, Shan-Shan Ma, Xing-Hui Shi, Lu Liu, Yuan-Wei Yao, Lei Zhu, Patrick D Worhunsky, Jintao Zhang
Difficulties in emotion regulation are commonly reported among individuals with alcohol and drug addictions and contribute to the acquisition and maintenance of addictive behaviors. Alterations in neural processing of negative affective stimuli have further been demonstrated among individuals with addictions. However, it is unclear whether these alterations are a general feature of addictions or are a result of prolonged exposure to drugs-of-abuse. To test the hypothesis of altered negative affect processing independent of drug effects, this study assessed neural function among drug-naïve youth with a behavioral addiction-Internet gaming disorder (IGD)...
November 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29154247/diagnostic-evaluation-of-neck-torsion-test-in-objective-examination-in-patients-with-vertigo-and-or-hearing-impairment
#19
Piotr Niewiadomski, Marzena Bielińska, Piotr Pietkiewicz, Jurek Olszewski
INTRODUCTION: The aim of the study was to evaluate the neck torsion test in objective examinations of patients with vertigo and/or hearing loss. MATERIAL AND METHODS: The study was conducted in 100 patients, including 54 women and 46 men aged 17-79 years, who were divided into two groups: I - 50 patients, including 30 women and 20 men aged 17-79 years (mean age 49.92 years) with dizziness and/or hearing impairments, and confirmed asymmetry of intracranial vessels, II - 50 patients - the control group, including 24 women and 26 men aged 20-71 years without dizziness and/or hearing disorders and without disturbance in the construction of intracranial vessels...
October 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29154155/the-dynamic-characteristics-of-the-anterior-cingulate-cortex-in-resting-state-fmri-of-patients-with-depression
#20
Hongna Zheng, Feng Li, Qijing Bo, Xianbin Li, Li Yao, Zhijun Yao, Chuanyue Wang, Xia Wu
BACKGROUND: The anterior cingulate cortex (ACC) is part of the limbic system of the brain. It is a bridge between attentional and emotional processing, which is responsible for the integration of visceral, attentional, and affective information. Lesioning of the ACC, which produces striking changes, is used to treat major depression disorder (MDD). Moreover, the brain dynamically integrates and coordinates functions of its different subparts to realize its cognitive capability. Hence, the spatio-temporal community distribution of the ACC is necessary to completely understand MDD...
November 8, 2017: Journal of Affective Disorders
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