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https://www.readbyqxmd.com/read/28528232/a-mathematical-and-biological-plausible-model-of-decision-execution-regulation-in-go-no-go-tasks-focusing-on-the-fronto-striatal-thalamic-pathway
#1
Golnaz Baghdadi, Farzad Towhidkhah, Reza Rostami
Discovering factors influencing the speed and accuracy of responses in tasks such as "Go/No-Go" is one of issues which have been raised in neurocognitive studies. Mathematical models are considered as tools to identify and to study decision making procedure from different aspects. In this paper, a mathematical model has been presented to show several factors can alter the output of decision making procedure before execution in a "Go/No-Go" task. The dynamic of this model has two stable fixed points, each of them corresponds to the "Press" and "Not-press" responses...
May 13, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28528196/a-review-of-psychiatric-co-morbidity-described-in-genetic-and-immune-mediated-movement-disorders
#2
REVIEW
K J Peall, M S Lorentzos, I Heyman, M A J Tijssen, M J Owen, R C Dale, M A Kurian
Psychiatric symptoms are an increasingly recognised feature of movement disorders. Recent identification of causative genes and autoantibodies has allowed detailed analysis of aetiologically homogenous subgroups, thereby enabling determination of the spectrum of psychiatric symptoms in these disorders. This review evaluates the incidence and type of psychiatric symptoms encountered in patients with movement disorders. A broad spectrum of psychiatric symptoms was identified across all subtypes of movement disorder, with depression, generalised anxiety disorder and obsessive-compulsive disorder being most common...
May 17, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28527579/the-role-of-coup-tfii-in-striated-muscle-development-and-disease
#3
Xin Xie, San-Pin Wu, Ming-Jer Tsai, Sophia Tsai
Skeletal and cardiac muscles are the only striated muscles in the body. Although sharing many structural and functional similarities, skeletal and cardiac muscles have intrinsic differences in terms of physiology and regenerative potential. While skeletal muscle possesses a robust regenerative response, the mammalian heart has limited repair capacity after birth. In this review, we provide an updated view regarding chicken ovalbumin upstream promoter-transcription factor II (COUP-TFII) function in vertebrate myogenesis, with particular emphasis on the skeletal and cardiac muscles...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28527321/short-term-exposure-to-gold-nanoparticle-suspension-impairs-swimming-behavior-in-a-widespread-calanoid-copepod
#4
François-Gaël Michalec, Markus Holzner, Alexandre Barras, Anne-Sophie Lacoste, Loïc Brunet, Jae-Seong Lee, Christian Slomianny, Rabah Boukherroub, Sami Souissi
Calanoid copepods play an important role in the functioning of marine and brackish ecosystems. Information is scarce on the behavioral toxicity of engineered nanoparticles to these abundant planktonic organisms. We assessed the effects of short-term exposure to nonfunctionalized gold nanoparticles on the swimming behavior of the widespread estuarine copepod Eurytemora affinis. By means of three-dimensional particle tracking velocimetry, we reconstructed the trajectories of males, ovigerous and non-ovigerous females...
May 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28527020/changes-in-serum-levels-of-kynurenine-metabolites-in-paediatric-patients-affected-by-adhd
#5
Melania Evangelisti, Pietro De Rossi, Jole Rabasco, Renato Donfrancesco, Luana Lionetto, Matilde Capi, Gabriele Sani, Maurizio Simmaco, Ferdinando Nicoletti, Maria Pia Villa
This study aims at determining serum levels of tryptophan and other metabolites of the kynurenine pathway in children with attention deficit hyperactivity disorder (ADHD) compared to healthy controls. Such metabolites interact with glutamate receptors in the central nervous system, potentially modulating mechanisms that are pivotal in ADHD and thus potentially representing peripheral biomarkers of the disorder. We measured serum levels of tryptophan and some metabolites of the kynurenine pathway in 102 children with ADHD and 62 healthy controls by liquid chromatography-tandem mass spectrometry (LC-MS/MS)...
May 19, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28527018/predicting-academic-impairment-and-internalizing-psychopathology-using-a-multidimensional-framework-of-sluggish-cognitive-tempo-with-parent-and-adolescent-reports
#6
Zoe R Smith, Joshua M Langberg
Adolescents with Sluggish Cognitive Tempo (SCT) exhibit symptoms of slowness, mental confusion, excessive daydreaming, low motivation, and drowsiness/sleepiness. Although many symptoms of SCT reflect internalizing states, no study has evaluated the clinical utility of self-report of SCT in an attention-deficit/hyperactivity disorder (ADHD) sample. Furthermore, it remains unclear whether SCT is best conceptualized as a unidimensional or multidimensional construct. In a sample of 262 adolescents comprehensively diagnosed with ADHD, the present study used adolescent- and parent reports of SCT to evaluate the predictive utility of a general SCT factor from a bifactor modeling approach compared the utility of three specific SCT factors (slow, sleepy, and daydreamer) for predicting academic impairment and internalizing psychopathology...
May 19, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28526935/diabetes-induced-abnormalities-of-mitochondrial-function-in-rat-brain-cortex-the-effect-of-n-3-fatty-acid-diet
#7
Maria Chomova, Maria Balazova, Jana Muchova
Diabetic encephalopathy, a proven complication of diabetes is associated with gradually developing end-organ damage in the CNS increasing the risk of stroke, cognitive dysfunction or Alzheimer's disease. This study investigated the response of rat cortical mitochondria to streptozotocin-induced diabetes and the potential for fish oil emulsion (FOE) to modulate mitochondrial function. Diabetes-induced deregulation of the respiratory chain function as a result of diminished complex I activity (CI) and cytochrome c oxidase hyperactivity was associated with attenuation of antioxidant defense of isolated cortical mitochondria, monitored by SOD activity, the thiol content, the dityrosine and protein-lipid peroxidation adduct formation...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28524461/editorial-the-continuing-contributions-of-multimodal-treatment-of-attention-over-nearly-two-decades-to-initial-attention-deficit-hyperactivity-disorder-pharmacotherapy-and-long-term-clinical-course
#8
EDITORIAL
Michael H Bloch
The initial results of the Multimodal Treatment of Attention Deficit Hyperactivity Disorder (MTA) trial had profound effects on the way that Attention-Deficit Hyperactivity Disorder (ADHD) is managed clinically. Children from the original MTA cohort as well as a control group have been followed longitudinally for well over a decade and are beginning to provide important data regarding the long-term clinical course, treatment and consequences of ADHD into adulthood. Two articles in this issue of JCPP highlight important contributions from the MTA cohort...
June 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28523385/attention-deficit-hyperactivity-disorder-adhd-symptoms-in-children-adopted-from-poland-and-their-atypical-association-patterns-a-bayesian-approach
#9
Donna A de Maat, Sandra Knuiman, Catharina H A M Rijk, René A C Hoksbergen, Anneloes L van Baar
Although high rates of attention-deficit hyperactivity disorder (ADHD) symptoms have been observed among internationally adopted children, research on these symptoms in Polish adoptees is lacking. Therefore, we examined ADHD symptoms in Polish adoptees and their relationship to pre-adoptive risk factors, that is, time in institutional care, early deprivation, and prenatal alcohol exposure. We further compared the association patterns and gender distribution of ADHD symptoms in children adopted from Poland to those reported in the literature for ADHD symptoms in non-adopted children...
May 18, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28522678/cigarette-smoking-associated-alterations-in-serotonin-adrenalin-signaling-pathways-of-platelets
#10
Curtis Lee Lowery, Clay Elliott, Anthonya Cooper, Coedy Hadden, Roberto N Sonon, Parastoo Azadi, D Keith Williams, James D Marsh, Donna S Woulfe, Fusun Kilic
BACKGROUND: Cigarette smoking plays a major role in cardiovascular diseases. The acute effects of cigarette smoking produce central nervous system-mediated activation of the sympathetic nervous system. The overactive sympathetic nervous system stimulates the secretion of serotonin (5-HT) and catecholamine into blood at supraphysiological levels. The correlation between these pathological conditions induced by smoking and the increased risk of thrombosis has not been thoroughly investigated...
May 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28522087/mazindol-a-risk-factor-for-pulmonary-arterial-hypertension
#11
Eric Konofal, Cherine Benzouid, Christophe Delclaux, Michel Lecendreux, Elizabeth Hussey
Mazindol is an imidazo-isoindole derivative, a tricyclic compound and a non-amphetamine central nervous system stimulant that blocks dopamine and norepinephrine reuptake. Mazindol was withdrawn from the US and European markets in 1999 for reasons unrelated to its efficacy or safety around a time when other anorexic drugs were found to be associated with the development of pulmonary arterial hypertension (PAH). Despite the use of mazindol for decades, reports of PAH due to mazindol intake have been extremely rare...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28521251/the-protective-effect-of-character-maturity-in-child-aggressive-antisocial-behavior
#12
Nóra Kerekes, Örjan Falk, Sven Brändström, Henrik Anckarsäter, Maria Råstam, Björn Hofvander
BACKGROUND: Childhood aggressive antisocial behavior (CD) is one of the strongest predictors of mental health problems and criminal behavior in adulthood. The aims of this study were to describe personality profiles in children with CD, and to determine the strength of association between defined neurodevelopmental symptoms, dimensions of character maturity and CD. METHODS: A sample of 1886 children with a close to equal distribution of age (9 or 12) and gender, enriched for neurodevelopmental and psychiatric problems were selected from the nationwide Child and Adolescent Twin Study in Sweden...
April 29, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28521112/prevalence-of-externalizing-disorders-and-autism-spectrum-disorder-among-children-with-fetal-alcohol-spectrum-disorder-systematic-review-and-meta-analysis
#13
Shannon Lange, Jürgen Rehm, Evdokia Anagnostou, Svetlana Popova
Due to their central nervous system impairments, children with Fetal Alcohol Spectrum Disorder (FASD) commonly exhibit externalizing behaviours such as hyperactivity, impulsivity, and/or delinquency. The purpose of the current study was to estimate the prevalence of neurodevelopmental disorders with prominent externalizing behaviours, namely Attention-Deficit Hyperactivity Disorder (ADHD), Conduct Disorder (CD), Oppositional Defiant Disorder (ODD), as well as Autism Spectrum Disorder (ASD) among children with FASD...
May 18, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28520552/prestimulus-inhibition-of-saccades-in-adults-with-and-without-attention-deficit-hyperactivity-disorder-as-an-index-of-temporal-expectations
#14
Yarden Dankner, Lilach Shalev, Marisa Carrasco, Shlomit Yuval-Greenberg
Knowing when to expect important events to occur is critical for preparing context-appropriate behavior. However, anticipation is inherently complicated to assess because conventional measurements of behavior, such as accuracy and reaction time, are available only after the predicted event has occurred. Anticipatory processes, which occur prior to target onset, are typically measured only retrospectively by these methods. In this study, we utilized a novel approach for assessing temporal expectations through the dynamics of prestimulus saccades...
May 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28516914/adenylate-kinase-hcinap-determines-self-renewal-of-colorectal-cancer-stem-cells-by-facilitating-ldha-phosphorylation
#15
Yapeng Ji, Chuanzhen Yang, Zefang Tang, Yongfeng Yang, Yonglu Tian, Hongwei Yao, Xi Zhu, Zeming Zhang, Jiafu Ji, Xiaofeng Zheng
Targeting the specific metabolic phenotypes of colorectal cancer stem cells (CRCSCs) is an innovative therapeutic strategy for colorectal cancer (CRC) patients with poor prognosis and relapse. However, the context-dependent metabolic traits of CRCSCs remain poorly elucidated. Here we report that adenylate kinase hCINAP is overexpressed in CRC tissues. Depletion of hCINAP inhibits invasion, self-renewal, tumorigenesis and chemoresistance of CRCSCs with a loss of mesenchymal signature. Mechanistically, hCINAP binds to the C-terminal domain of LDHA, the key regulator of glycolysis, and depends on its adenylate kinase activity to promote LDHA phosphorylation at tyrosine 10, resulting in the hyperactive Warburg effect and the lower cellular ROS level and conferring metabolic advantage to CRCSC invasion...
May 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28516731/alopecia-areata-hyperactivity-of-the-hypothalamic-pituitary-adrenal-axis-is-a-myth
#16
Beata Bergler-Czop, Bartosz Miziołek, Ligia Brzezińska-Wcisło
INTRODUCTION: Psychological stress is known to cause exacerbation of different skin pathologies including alopecia areata (AA). A hyperactivity of the HPA axis in patients affected by AA (AA-patients) was proposed to be a neuroendocrine response to stress. Still little is known about MSH and cortisol production in AA settings. AIM: The aim of the study was to compare trends in a production of melanocyte-stimulating hormone (MSH) and cortisol in patients with AA-patients and healthy controls...
May 18, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28515562/leukodystrophy-presenting-as-hyperactivity-and-bipolarity-with-uncommon-adverse-drug-reaction
#17
Roshan Sutar, Anirban Ray, Shekhar P Sheshadri
Leukodystrophy is a group of demyelinating neurodegenerative diseases of brain with varied presentation and multiple etiologies. Prognosis is predominantly dismal. Misdiagnosis and wrong treatment are common in this group of rare neurological disorders, especially when it presents with psychiatric symptoms. In this case, importance of neurological and radiological evaluation and need for high diagnostic suspicion in treatment-resistant psychiatric disorders is highlighted.
March 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28514967/at1-receptor-response-to-non-saturating-ang-ii-concentrations-is-amplified-by-calcium-channel-blockers
#18
Kristoffer Bernhem, Kalaiselvan Krishnan, Alexander Bondar, Hjalmar Brismar, Anita Aperia, Lena Scott
BACKGROUND: Blockers of angiotensin II type 1 receptor (AT1R) and the voltage gated calcium channel 1.2 (CaV1.2) are commonly used for treatment of hypertension. Yet there is little information about the effect of physiological concentrations of angiotensin II (AngII) on AT1R signaling and whether there is a reciprocal regulation of AT1R signaling by CaV1.2. METHODS: To elucidate these questions, we have studied the Ca(2+) signaling response to physiological and pharmacological AngII doses in HEK293a cells, vascular smooth muscle cells and cardiomyocytes using a Ca(2+) sensitive dye as the principal sensor...
May 17, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28513760/cell-therapy-in-the-treatment-of-bipolar-mania-in-an-animal-model-a-proof-of-concept-study
#19
Bruna M Ascoli, Rafael Colombo, Luiza P Géa, Paula B Terraciano, Sabrina B Pizzato, Fernanda S de Oliveira, Elizabeth Cirne-Lima, Flávio Kapczinski, Adriane R Rosa
Introduction: The rationale of mesenchymal stem cells (MSCs) as a novel therapeutic approach in certain neurodegenerative diseases is based on their ability to promote neurogenesis. Hippocampal atrophy has been related to bipolar disorder (BD) in preclinical, imaging and postmortem studies. Therefore, the development of new strategies to stimulate the neurogenesis process in BD is crucial. Objectives: To investigate the behavioral and neurochemical changes induced by transplantation of MSCs in a model of mania-like behavior induced by lisdexamfetamine dimesylate (LDX)...
May 15, 2017: Trends in Psychiatry and Psychotherapy
https://www.readbyqxmd.com/read/28513190/prevalence-and-correlates-of-bullying-victimisation-and-perpetration-in-a-nationally-representative-sample-of-australian-youth
#20
Hannah J Thomas, Jason P Connor, David M Lawrence, Jennifer M Hafekost, Stephen R Zubrick, James G Scott
OBJECTIVE: Bullying prevalence studies are limited by varied measurement methods and a lack of representative samples. This study estimated the national prevalence of bullying victimisation, perpetration and combined victim-perpetration experiences in a representative population-based sample of Australian youth. The relationships between the three types of bullying involvement with a range of mental health symptoms and diagnoses were also examined. METHODS: A randomly selected nationally representative sample aged 11-17 years ( N = 2967, Mage = 14...
May 1, 2017: Australian and New Zealand Journal of Psychiatry
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