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https://www.readbyqxmd.com/read/28732352/cerebral-blood-flow-changes-in-remitted-early-and-late-onset-depression-patients
#1
Wenxiang Liao, Ze Wang, Xiangrong Zhang, Hao Shu, Zan Wang, Duan Liu, Zhijun Zhang
Abnormal cerebral blood flow (CBF) is reportedly associated with major depressive disorder (MDD). We have investigated CBF changes in early-onset depression (EOD) and late-onset depression (LOD), and their impact on cognitive function. Thirty-two remitted EOD patients, 32 remitted LOD patients, and 43 age-matched healthy controls were recruited, and the pulsed arterial spin labeling data were scanned under 3.0T MRI and processed through voxel-by-voxel statistical analysis. Compared to healthy controls, LOD patients had decreased normalized CBF in the bilateral precuneus, cuneus, right fronto-cingulate-striatal areas, and right temporal, occipital and parietal lobes, but increased normalized CBF in the left frontal and temporal cortices and the cingulate gyrus...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732259/dravet-syndrome-characteristics-comorbidities-and-caregiver-concerns
#2
Nicole Villas, Mary Anne Meskis, Sue Goodliffe
The Dravet Syndrome Foundation (DSF) conducted the largest in-depth survey of parents and caregivers of patients with Dravet syndrome (DS) to date, in order to (1) identify top concerns among caregivers, (2) establish an approximate frequency of characteristics and comorbidities of DS beyond seizures, and (3) provide direction for clinicians and researchers looking to study the effects of DS on the patient and family unit. Two hundred fifty-six responses were received representing a patient age range of 9months to 32years with a median age group of 7-10years (IQR=8)...
July 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28731040/er-stress-and-the-unfolded-protein-response-in-neurodegeneration
#3
REVIEW
Claudio Hetz, Smita Saxena
The clinical manifestation of neurodegenerative diseases is initiated by the selective alteration in the functionality of distinct neuronal populations. The pathology of many neurodegenerative diseases includes accumulation of misfolded proteins in the brain. In physiological conditions, the proteostasis network maintains normal protein folding, trafficking and degradation; alterations in this network - particularly disturbances to the function of endoplasmic reticulum (ER) - are thought to contribute to abnormal protein aggregation...
July 21, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28730563/functional-connectivity-and-cognitive-impairment-in-migraine-with-and-without-aura
#4
Viviana Lo Buono, Lilla Bonanno, Francesco Corallo, Laura Rosa Pisani, Riccardo Lo Presti, Rosario Grugno, Giuseppe Di Lorenzo, Placido Bramanti, Silvia Marino
BACKGROUND: Several fMRI studies in migraine assessed resting state functional connectivity in different networks suggesting that this neurological condition was associated with brain functional alteration. The aim of present study was to explore the association between cognitive functions and cerebral functional connectivity, in default mode network, in migraine patients without and with aura, during interictal episodic attack. METHODS: Twenty-eight migraine patients (14 without and 14 with aura) and 14 matched normal controls, were consecutively recruited...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28730183/aberrant-cerebellar-connectivity-in-bipolar-disorder-with-psychosis
#5
Ann K Shinn, Youkyung S Roh, Caitlin T Ravichandran, Justin T Baker, Dost Öngür, Bruce M Cohen
BACKGROUND: The cerebellum, which modulates affect and cognition in addition to motor functions, may contribute substantially to the pathophysiology of mood and psychotic disorders, such as bipolar disorder. A growing literature points to cerebellar abnormalities in bipolar disorder. However, no studies have investigated the topographic representations of resting state cerebellar networks in bipolar disorder, specifically their functional connectivity to cerebral cortical networks. METHODS: Using a well-defined cerebral cortical parcellation scheme as functional connectivity seeds, we compared ten cerebellar resting state networks in 49 patients with bipolar disorder and a lifetime history of psychotic features and 55 healthy control participants matched for age, sex, and image signal-to-noise ratio...
July 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/28729445/preferential-disruption-of-prefrontal-gabaergic-function-by-nanomolar-concentrations-of-the-%C3%AE-7nach-negative-modulator-kynurenic-acid
#6
Eden Flores-Barrera, Daniel R Thomases, Daryn K Cass, Ajay Bhandari, Robert Schwarcz, John P Bruno, Kuei Y Tseng
Increased concentrations of kynurenic acid (KYNA) in the prefrontal cortex (PFC) are thought to contribute to the development of cognitive deficits observed in schizophrenia. Although this view is consistent with pre-clinical studies showing a negative impact of prefrontal KYNA elevation on executive function, the mechanism underlying such a disruption remains unclear. Here we measured changes in local field potential responses to ventral hippocampal stimulation in vivo, and conducted whole-cell patch-clamp recordings in brain slices to reveal how nanomolar concentrations of KYNA alter synaptic transmission in the PFC of male adult rats...
July 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28728097/nonlinear-modulation-of-interacting-between-comt-and-depression-on-brain-function
#7
L Gong, C He, Y Yin, Q Ye, F Bai, Y Yuan, H Zhang, L Lv, H Zhang, Z Zhang, C Xie
BACKGROUND: The catechol-O-methyltransferase (COMT) gene is related to dopamine degradation and has been suggested to be involved in the pathogenesis of major depressive disorder (MDD). However, how this gene affects brain function properties in MDD is still unclear. METHODS: Fifty patients with MDD and 35 cognitively normal participants underwent a resting-state functional magnetic resonance imaging scan. A voxelwise and data-drive global functional connectivity density (gFCD) analysis was used to investigate the main effects and the interactions of disease states and COMT rs4680 gene polymorphism on brain function...
June 9, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28726543/differences-in-brain-architecture-in-remote-mild-traumatic-brain-injury
#8
Aishwarya Rajesh, Gillian E Cooke, Jim M Monti, Andrew Jahn, Ana M Daugherty, Arthur Kramer
Mild TBI (mTBI) is brain trauma from an external impact with a loss of consciousness less than 30 minutes. MTBI results in several biopsychosocial impairments with pronounced cognitive deficits, thought to resolve within three months of injury. Previous research suggests that these impairments are due to a temporary inability to appropriately allocate neural resources in response to cognitive demands. Our study questioned this assumption and instead hypothesized that mTBI was associated with long-term neural disruptions and compromised brain structure integrity...
July 20, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28726442/ptsd-and-autism-spectrum-disorder-co-morbidity-gaps-in-research-and-potential-shared-mechanisms
#9
Nirit Haruvi-Lamdan, Danny Horesh, Ofer Golan
BACKGROUND: While autism and trauma were often linked in psychoanalytic theory, very few scientific attempts have been made to explore the associations and comorbidity between the two. Instead, each area has grown separately, yielding large bodies of theoretical and clinical knowledge. THEORETICAL FRAMEWORK: In this article, we suggest several possible pathways that may link trauma and autism. First, autism spectrum disorder (ASD) may serve as a vulnerability marker for posttraumatic stress disorder (PTSD), specifically by increasing the risk for exposure to traumatic events...
July 20, 2017: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/28725190/reliability-of-eeg-interactions-differs-between-measures-and-is-specific-for-neurological-diseases
#10
Yvonne Höller, Kevin Butz, Aljoscha Thomschewski, Elisabeth Schmid, Andreas Uhl, Arne C Bathke, Georg Zimmermann, Santino O Tomasi, Raffaele Nardone, Wolfgang Staffen, Peter Höller, Markus Leitinger, Julia Höfler, Gudrun Kalss, Alexandra C Taylor, Giorgi Kuchukhidze, Eugen Trinka
Alterations of interaction (connectivity) of the EEG reflect pathological processes in patients with neurologic disorders. Nevertheless, it is questionable whether these patterns are reliable over time in different measures of interaction and whether this reliability of the measures is the same across different patient populations. In order to address this topic we examined 22 patients with mild cognitive impairment, five patients with subjective cognitive complaints, six patients with right-lateralized temporal lobe epilepsy, seven patients with left lateralized temporal lobe epilepsy, and 20 healthy controls...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28724796/host-interleukin-6-production-regulates-inflammation-but-not-tryptophan-metabolism-in-the-brain-during-murine-gvhd
#11
Ludovic Belle, Vivian Zhou, Kara L Stuhr, Margaret Beatka, Emily M Siebers, Jennifer M Knight, Michael W Lawlor, Casey Weaver, Misato Hashizume, Cecilia J Hillard, William R Drobyski
Graft-versus-host disease (GVHD) induces pathological damage in peripheral target organs leading to well-characterized, organ-specific clinical manifestations. Patients with GVHD, however, can also have behavioral alterations that affect overall cognitive function, but the extent to which GVHD alters inflammatory and biochemical pathways in the brain remain poorly understood. In the current study, we employed complementary murine GVHD models to demonstrate that alloreactive donor T cells accumulate in the brain and affect a proinflammatory cytokine milieu that is associated with specific behavioral abnormalities...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28724747/interleukin-1-receptor-in-seizure-susceptibility-after-traumatic-injury-to-the-pediatric-brain
#12
Bridgette D Semple, Terence J O'Brien, Kayleen Gimlin, David K Wright, Shi Eun Kim, Pablo M Casillas-Espinosa, Kyria M Webster, Steven Petrou, Linda J Noble-Haeusslein
Epilepsy after pediatric traumatic brain injury (TBI) is associated with poor quality of life. This study aimed to characterize post-traumatic epilepsy in a mouse model of pediatric brain injury, and to evaluate the role of interleukin-1 (IL-1) signaling as a target for pharmacological intervention. Male mice received a controlled cortical impact or sham surgery at postnatal day 21, approximating a toddler-aged child. Mice were treated acutely with an IL-1 receptor antagonist (IL-1Ra; 100 mg/kg s.c.) or vehicle...
July 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28724385/increase-of-cytosolic-phospholipase-a2-as-hydrolytic-enzyme-of-phospholipids-and-autism-cognitive-social-and-sensory-dysfunction-severity
#13
Hanan Qasem, Laila Al-Ayadhi, Hussain Al Dera, Afaf El-Ansary
BACKGROUND: Autism is neurodevelopmental disorder that is characterized by developmental, behavioral, social and sensory abnormalities. Researchers have focused in last years in immunological alteration and inflammation as a hot subject in autism field. This work aims to study the alteration in phospholipids (PE, PS, and PC) together with the change in cPLA2 concentration as the main phospholipid hydrolytic enzyme in autistic patients compared to control. It was also extended to find a correlation between these biomarkers and severity of autism measured as childhood autism rating scale (CARS), Social responsiveness scale (SRS), and Short sensory profile (SSP)...
June 15, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28721430/two-way-bridge-between-muscular-dysfunction-and-cognitive-impairment-secondary-analyses-of-sabe-bogota-study
#14
E Garcia-Cifuentes, D G David-Pardo, M G Borda, M U Perez-Zepeda, C A Cano-Gutiérrez
BACKGROUND AND OBJECTIVE: Muscular dysfunction and cognitive impairment are both disabling states, affecting especially the elderly. Thus, are important subjects of research. Our goal is to describe the association between these two entities in the elderly. METHODS: This is a secondary analysis from the SABE 2012 Bogota survey, which is a cross-sectional study. We define muscular dysfunction as an abnormal result in gait speed and/or handgrip strength tasks. Cognitive impairment was defined as an abnormal result in Mini Mental State Examination...
2017: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/28721057/safety-tolerability-and-risks-associated-with-first-and-second-generation-antipsychotics-a-state-of-the-art-clinical-review
#15
REVIEW
Marco Solmi, Andrea Murru, Isabella Pacchiarotti, Juan Undurraga, Nicola Veronese, Michele Fornaro, Brendon Stubbs, Francesco Monaco, Eduard Vieta, Mary V Seeman, Christoph U Correll, André F Carvalho
Since the discovery of chlorpromazine (CPZ) in 1952, first-generation antipsychotics (FGAs) have revolutionized psychiatric care in terms of facilitating discharge from hospital and enabling large numbers of patients with severe mental illness (SMI) to be treated in the community. Second-generation antipsychotics (SGAs) ushered in a progressive shift from the paternalistic management of SMI symptoms to a patient-centered approach, which emphasized targets important to patients - psychosocial functioning, quality of life, and recovery...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28720860/altered-hippocampal-volume-and-functional-connectivity-in-males-with-internet-gaming-disorder-comparing-to-those-with-alcohol-use-disorder
#16
Eun Jin Yoon, Jung-Seok Choi, Heejung Kim, Bo Kyung Sohn, Hee Yeon Jung, Jun-Young Lee, Dai-Jin Kim, Sun-Won Park, Yu Kyeong Kim
Internet gaming disorder (IGD) has been conceptualized as a behavioral addiction and shares clinical, neuropsychological, and personality characteristics with alcohol use disorder (AUD), but IGD dose not entail brain exposure to toxic agents, which renders it different from AUD. To achieve a clear understanding of the neurobiological features of IGD, we aimed to identify morphological and functional changes in IGD and compare them with those in AUD. Individuals with IGD showed larger volume in the hippocampus/amygdala and precuneus than healthy controls (HCs)...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720486/loss-of-synaptic-zinc-transport-in-progranulin-deficient-mice-may-contribute-to-progranulin-associated-psychopathology-and-chronic-pain
#17
Stefanie Hardt, Juliana Heidler, Boris Albuquerque, Lucie Valek, Christine Altmann, Annett Wilken-Schmitz, Michael K E Schäfer, Ilka Wittig, Irmgard Tegeder
Affective and cognitive processing of nociception contributes to the development of chronic pain and vice versa, pain may precipitate psychopathologic symptoms. We hypothesized a higher risk for the latter with immanent neurologic diseases and studied this potential interrelationship in progranulin-deficient mice, which are a model for frontotemporal dementia, a disease dominated by behavioral abnormalities in humans. Young naïve progranulin deficient mice behaved normal in tests of short-term memory, anxiety, depression and nociception, but after peripheral nerve injury, they showed attention-deficit and depression-like behavior, over-activity, loss of shelter-seeking, reduced impulse control and compulsive feeding behavior, which did not occur in equally injured controls...
July 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28720405/persistent-cognitive-and-morphological-alterations-induced-by-repeated-exposure-of-adolescent-rats-to-the-abused-inhalant-toluene
#18
K M Braunscheidel, J T Gass, P J Mulholland, S B Floresco, J J Woodward
While thepsychoactive inhalant toluene causes behavioral effects similarto those produced by other drugs of abuse, the persistent behavioral and anatomical abnormalities induced by toluene exposure are not well known. To mimic human "binge-like" inhalant intoxication, adolescent, male Sprague-Dawley rats were exposed to toluene vapor (57000 ppm) twice daily for five consecutive days. These rats remained in their home cages until adulthood (P60), when they were trained in operant boxes to respond to a palatable food reward and then challenged with several different cognitive tasks...
July 15, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28720215/autoimmune-meningitis-and-encephalitis-in-adult-onset-still-disease-case-report
#19
Bożek Milena, Konopko Magdalena, Wierzba-Bobrowicz Teresa, Witkowski Grzegorz, Makowicz Grzegorz, Sienkiewicz-Jarosz Halina
INTRODUCTION: Adult-onset Still disease (AOSD) is a rare systemic inflammatory disease of unknown cause. Its symptoms usually include persistent fever, fugitive salmon-colored rash, arthritis, sore throat (not specific), but it may also lead to internal organs' involvement, which presents with enlargement of the liver and spleen, swollen lymph nodes, carditis or pleuritis - potentially life-threatening complications. In rare cases, AOSD can cause aseptic meningitis or/and encephalitis...
July 8, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28719298/cognitive-outcomes-and-psychiatric-symptoms-of-retinopathy-positive-cerebral-malaria-cohort-description-and-baseline-results
#20
Rachel Brim, Sebastian Mboma, Margaret Semrud-Clikeman, Sam Kampondeni, Jed Magen, Terrie Taylor, John Langfitt
Cerebral malaria (CM) is a common cause of death and disability among children in sub-Saharan Africa. Many prior studies of neuropsychiatric morbidity have been limited by a cross-sectional design or a short duration of follow-up. Most have included subjects who may have presented with coma due to a disease process other than CM. No studies have assessed the relationship between magnetic resonance imaging (MRI) findings and long-term outcomes. The Cognitive Outcomes and Psychiatric symptoms of retinopathy-positive CM (COPS) cohort is the first large (N = 221) prospectively recruited cohort of stringently defined cases of CM and hospital-based, age-matched, non-CM controls in whom cognitive and psychiatric outcomes are assessed with standardized measures semi-annually for up to 5 years...
July 2017: American Journal of Tropical Medicine and Hygiene
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