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https://www.readbyqxmd.com/read/29706868/the-blood-brain-barrier-and-the-ephr-ephrin-system-perspectives-on-a-link-between-neurovascular-and-neuropsychiatric-disorders
#1
REVIEW
Victoria A Malik, Barbara Di Benedetto
Interactions among endothelial cells (EC) forming blood vessels and their surrounding cell types are essential to establish the blood-brain barrier (BBB), an integral part of the neurovascular unit (NVU). Research on the NVU has recently seen a renaissance to especially understand the neurobiology of vascular and brain pathologies and their frequently occurring comorbidities. Diverse signaling molecules activated in the near proximity of blood vessels trigger paracellular pathways which regulate the formation and stabilization of tight junctions (TJ) between EC and thereby influence BBB permeability...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29698918/work-intensity-in-men-and-work-related-emotional-demands-in-women-are-associated-with-increased-suicidality-among-persons-attending-primary-care
#2
N Younès, M Rivière, L Plancke, A Leroyer, T Blanchon, M Azevedo Da Silva, M Melchior
BACKGROUND: A large proportion of persons died by suicide are employed at the time of death and work-related factors partly contribute to suicide risk. Our aim was to examine the association between multiple aspects of work organization and suicidal ideation in a study conducted in primary care. METHODS: Data came from a study of 2027 working patients attending a GP representative of patients in the Nord Pas-de-Calais region in France (April-August 2014). Suicidality was assessed using the MINI (Mini International Neuropsychiatric Interview)...
April 14, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29684438/the-cytoskeleton-in-couch-potato-ism-insights-from-a-murine-model-of-impaired-actin-dynamics
#3
Karen Gertz, Ria Uhlemann, Anna Foryst-Ludwig, Ruben Marquina Barrientos, Kai Kappert, Christa Thöne-Reineke, Pierre Djoufack, Clemens Kirschbaum, Klaus B Fink, Andreas Heinz, Ulrich Kintscher, Matthias Endres, Golo Kronenberg
Evidence for a critical pathophysiological role of aberrant cytoskeletal dynamics is being uncovered in a growing number of neuropsychiatric syndromes. A sedentary lifestyle as well as overt psychopathology is prevalent in patients with the metabolic syndrome. Using mice deficient in gelsolin (Gsn-/- ), a crucial actin-severing protein, we here investigated reduced actin turnover as a potential common driver of metabolic disturbances, sedentary behavior, and an anxious/depressive phenotype. Gelsolin deficiency resulted in reduced lifespan...
April 20, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29682232/neuropsychiatric-symptoms-in-vascular-dementia-epidemiologic-and-clinical-aspects
#4
Marcelo Antônio Oliveira Santos, Lucas Soares Bezerra, Carolina da Cunha Correia, Igor Silvestre Bruscky
Dementia is a general term for a heterogeneous group of organic neurodegenerative diseases. Cerebrovascular causes account for 20% of cases. Objective: To describe the clinical and epidemiological features of individuals aged >60 years diagnosed with vascular dementia (VD) or mixed dementia (MxD) in a referral hospital for dementia. Methods: A descriptive, retrospective study was carried out from 2014 to 2017 involving elderly individuals (≥60 years) with VA or MxD...
January 2018: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29616702/identifying-better-outcome-measures-to-improve-treatment-of-agitation-in-dementia-a-report-from-the-eu-us-ctad-task-force
#5
M Sano, M Soto, M Carrillo, J Cummings, S Hendrix, J Mintzer, A Porsteinsson, P Rosenberg, L Schneider, J Touchon, P Aisen, B Vellas, C Lyketsos
For the second time in the past 3 years, the EU-US CTAD Task Force addressed challenges related to designing clinical trials for agitation in dementia, which is one of the most disruptive aspects of the condition for both patients and caregivers. Six recommendations emerged from the Task Force meeting: 1 - Operationalizing agitation criteria established by the IPA; 2 - Combining clinician- and caregiver-derived outcomes as primary outcome measures; 3 - Using global ratings to define clinically meaningful effects and power studies; 4 - Improving the accuracy of caregiver reports by better training and education of caregivers; 5 - Employing emerging technologies to collect near real-time behavioral data; and 6 - Utilizing innovative trial designs and increasing the use of biomarkers to maximize the productivity of clinical trials for neuropsychiatric symptoms...
2018: Journal of Prevention of Alzheimer's Disease
https://www.readbyqxmd.com/read/29606904/4q21-2q21-3-duplication-molecular-and-neuropsychological-aspects
#6
REVIEW
Ivan Y Iourov, Maria A Zelenova, Svetlana G Vorsanova, Victoria V Voinova, Yuri B Yurov
During the last decades, a large amount of newly described microduplications and microdeletions associated with intellectual disability (ID) and related neuropsychiatric diseases have been discovered. However, due to natural limitations, a significant part of them has not been the focus of multidisciplinary approaches. Here, we address previously undescribed chromosome 4q21.2q21.3 microduplication for gene prioritization, evaluation of cognitive abilities and estimation of genomic mechanisms for brain dysfunction by molecular cytogenetic (cytogenomic) and gene expression (meta-) analyses as well as for neuropsychological assessment...
April 2018: Current Genomics
https://www.readbyqxmd.com/read/29606372/meeting-report-can-we-make-animal-models-of-human-mental-illness
#7
Lisa M Monteggia, Hakon Heimer, Eric J Nestler
Modeling aspects of the human condition in animals has provided invaluable information on the physiology of all organ systems and has assisted in the development of virtually all new therapeutics. Research in cardiovascular disease, cancer, immunology, and other disciplines has benefited substantially from the availability of animal models that capture aspects of specific human diseases and that have been used effectively to advance new treatments. By comparison, animal models for neurological and psychiatric disorders have faced several unique obstacles...
February 22, 2018: Biological Psychiatry
https://www.readbyqxmd.com/read/29596328/performance-of-the-adult-adhd-self-report-scale-v1-1-in-adults-with-major-depressive-disorder
#8
Boadie W Dunlop, Ruizhe Wu, Kathleen Helms
Attention deficit/hyperactivity disorder (ADHD) is an under-recognized comorbid disorder among patients with mood disorders. ADHD is an independent risk factor for suicidal ideation and behavior and contributes to many aspects of impaired function in adults. Diagnosis of ADHD in Major Depressive Disorder (MDD) patients is challenging due to the overlap in cognitive symptoms between the two disorders. The ADHD Self-Report Scale, version 1.1 (ASRS-v1.1) is a widely used screening instrument for ADHD in adults but its accuracy has not been evaluated previously in treatment-seeking MDD patients...
March 29, 2018: Behavioral Sciences
https://www.readbyqxmd.com/read/29551491/nav1-1-overexpressing-interneuron-transplants-restore-brain-rhythms-and-cognition-in-a-mouse-model-of-alzheimer-s-disease
#9
Magdalena Martinez-Losa, Tara E Tracy, Keran Ma, Laure Verret, Alexandra Clemente-Perez, Abdullah S Khan, Inma Cobos, Kaitlyn Ho, Li Gan, Lennart Mucke, Manuel Alvarez-Dolado, Jorge J Palop
Inhibitory interneurons regulate the oscillatory rhythms and network synchrony that are required for cognitive functions and disrupted in Alzheimer's disease (AD). Network dysrhythmias in AD and multiple neuropsychiatric disorders are associated with hypofunction of Nav1.1, a voltage-gated sodium channel subunit predominantly expressed in interneurons. We show that Nav1.1-overexpressing, but not wild-type, interneuron transplants derived from the embryonic medial ganglionic eminence (MGE) enhance behavior-dependent gamma oscillatory activity, reduce network hypersynchrony, and improve cognitive functions in human amyloid precursor protein (hAPP)-transgenic mice, which simulate key aspects of AD...
March 15, 2018: Neuron
https://www.readbyqxmd.com/read/29550981/combining-drug-and-music-therapy-in-patients-with-moderate-alzheimer-s-disease-a-randomized-study
#10
Anna Rita Giovagnoli, Valentina Manfredi, Letizia Schifano, Chiara Paterlini, Annalisa Parente, Fabrizio Tagliavini
Alzheimer's disease (AD) can impair language, but active music therapy (AMT) and memantine (M) can improve communication. This study aimed to clarify whether adding AMT to M may improve language in comparison with drugs alone in patients with moderate AD on stable therapy with acetylcholinesterase inhibitors (AchEI). Forty-five AD patients treated with stable dose of AchEI were randomized to receive AMT plus M 20 mg/day or M 20 mg/day for 24 weeks. The Severe Impairment Battery-Language (SIB-l), SIB, Mini Mental State Examination, Neuropsychiatric Inventory (NPI), Lubben Social Network Scale, Activities of Daily Living, and Instrumental Activities of Daily Living scores at baseline and 12 and 24 weeks assessed language (primary variable) and overall cognitive, psycho-behavior, social, and functional aspects (secondary variables)...
March 17, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/29507598/undetected-psychiatric-morbidity-among-hiv-aids-patients-attending-comprehensive-care-clinic-ccc-in-nairobi-kenya-towards-an-integrated-mental-health-care
#11
Pauline W Ng'ang'a, Muthoni Mathai, Anne Obondo, Teresia Mutavi, Manasi Kumar
Background: Psychiatric morbidity is commonly associated with HIV disease and may have adverse effects. This aspect may be overlooked at comprehensive HIV care centers in Low and Middle-Income Countries. Objectives: The aim of this study was to determine the prevalence of undetected psychiatric morbidity among HIV/AIDS adult patients attending Comprehensive Care Centre in a semi-urban clinic, in Nairobi, Kenya. Design: Descriptive cross-sectional study of adult HIV patients not receiving any psychiatric treatment was conducted...
2018: Annals of General Psychiatry
https://www.readbyqxmd.com/read/29486006/sexual-dysfunctions-in-ms-in-relation-to-neuropsychiatric-aspects-and-its-psychological-treatment-a-scoping-review
#12
Jana Pöttgen, Anita Rose, Wim van de Vis, Jannie Engelbrecht, Michelle Pirard, Stefanie Lau, Christoph Heesen, Sascha Köpke
OBJECTIVE: Sexual dysfunction in multiple sclerosis (MS) is a significant, but often underestimated and overlooked suffering. Interventions to treat sexual dysfunction in MS are rare. The relation between sexual dysfunction in MS and psychological as well as neuropsychological aspects is evident. However, this field of research remains markedly underdeveloped in this severe chronic illness. The aim of this scoping review is to describe the relevant knowledge in this area and to identify psychological interventions to treat sexual dysfunctions in MS...
2018: PloS One
https://www.readbyqxmd.com/read/29478718/determination-of-neurotensin-projections-to-the-ventral-tegmental-area-in-mice
#13
Hillary L Woodworth, Juliette A Brown, Hannah M Batchelor, Raluca Bugescu, Gina M Leinninger
Pharmacologic treatment with the neuropeptide neurotensin (Nts) modifies motivated behaviors such as feeding, locomotor activity, and reproduction. Dopamine (DA) neurons of the ventral tegmental area (VTA) control these behaviors, and Nts directly modulates the activity of DA neurons via Nts receptor-1. While Nts sources to the VTA have been described in starlings and rats, the endogenous sources of Nts to the VTA of mice remain incompletely understood, impeding determination of which Nts circuits orchestrate specific behaviors in this model...
April 2018: Neuropeptides
https://www.readbyqxmd.com/read/29478595/genetics-of-migraine
#14
Verneri Anttila, Maija Wessman, Mikko Kallela, Aarno Palotie
Genetics of migraine has recently undergone a major shift, moving in the space of a few years from having only a few known genes for rare Mendelian forms to 47 known common variant loci affecting the susceptibility of the common forms of migraine. This has largely been achieved by rapidly increasing sample sizes for genomewide association studies (GWAS), soon to be followed by the first wave of large-scale exome-sequencing studies. The large number of detected loci, chief among them TRPM8, PRDM16, and LRP1, have enabled a number of in silico analyses, which have shed light on the functional and tissue-level aspects of the common risk variants for migraine, including evidence for involvement of both vascular and neuronal mechanisms...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29475229/empathy-study-in-rodent-model-of-autism-spectrum-disorders
#15
REVIEW
Tamanna Jahan Mony, Minha Hong, Hee Jae Lee
There is a highly cognitive and social context to empathy behavior in human. In various social contexts, rodents also display remarkable affective sensitivity and exhibit primitive forms of empathy similar to human. Therefore, we aimed to elaborate the concept of empathy about various components of empathetic behavior in rodents with the similar contexts of a human. In this review, we highlighted the behavioral paradigm that already examined different aspects of rodent empathetic behavior in response to conspecific distress...
February 2018: Psychiatry Investigation
https://www.readbyqxmd.com/read/29474315/antibodies-and-the-brain-anti-n-methyl-d-aspartate-receptor-antibody-and-the-clinical-effects-in-patients-with-systemic-lupus-erythematosus
#16
Yoshiyuki Arinuma
PURPOSE OF REVIEW: Neuropsychiatric manifestations are one of the fatal complications in patients with systemic lupus erythematosus (SLE). However, the diagnosis and monitoring of that aspect of SLE is still challenging, as there are no reliable biomarkers linked to central nervous system (CNS) damage. This review emphasizes potential candidate autoantibodies that appear to be associated with development of behavioral and psychiatric manifestations in SLE patients. RECENT FINDINGS: Developments in the pathogenesis in SLE, not surprising for this immune disorder, point to specific, autoantibody toxicity...
June 2018: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29473169/animal-models-of-wilson-disease
#17
REVIEW
Emily Reed, Svetlana Lutsenko, Oliver Bandmann
Wilson disease (WD) is an autosomal recessive disorder of copper metabolism manifesting with hepatic, neurological and psychiatric symptoms. The limitations of the currently available therapy for WD (particularly in the management of neuropsychiatric disease), together with our limited understanding of key aspects of this illness (e.g. neurological vs hepatic presentation) justify the ongoing need to study WD in suitable animal models. Four animal models of WD have been established: the Long-Evans Cinnamon rat, the toxic-milk mouse, the Atp7b knockout mouse and the Labrador retriever...
February 23, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29420565/catecholamines-alter-the-intrinsic-variability-of-cortical-population-activity-and-perception
#18
Thomas Pfeffer, Arthur-Ervin Avramiea, Guido Nolte, Andreas K Engel, Klaus Linkenkaer-Hansen, Tobias H Donner
The ascending modulatory systems of the brain stem are powerful regulators of global brain state. Disturbances of these systems are implicated in several major neuropsychiatric disorders. Yet, how these systems interact with specific neural computations in the cerebral cortex to shape perception, cognition, and behavior remains poorly understood. Here, we probed into the effect of two such systems, the catecholaminergic (dopaminergic and noradrenergic) and cholinergic systems, on an important aspect of cortical computation: its intrinsic variability...
February 2018: PLoS Biology
https://www.readbyqxmd.com/read/29413516/multiple-pathways-mediate-microrna-degradation-focus-on-the-translin-trax-rnase-complex
#19
Jay M Baraban, Aparna Shah, Xiuping Fu
The discovery of the microRNA system has revolutionized our understanding of translational control. Furthermore, growing appreciation of the pivotal role that de novo translation plays in activity-dependent synaptic plasticity has fueled interest among neuroscientists in deciphering how the microRNA system impacts neuronal signaling and the pathophysiology of neuropsychiatric disorders. Although we have a general understanding of how the microRNA system operates, many key questions remain. In particular, the biosynthesis of microRNAs and their role in translational silencing are fairly well understood...
2018: Advances in Pharmacology
https://www.readbyqxmd.com/read/29392087/role-of-dietary-protein-and-muscular-fitness-on-longevity-and-aging
#20
REVIEW
Barbara Strasser, Konstantinos Volaklis, Dietmar Fuchs, Martin Burtscher
Muscle atrophy is an unfortunate effect of aging and many diseases and can compromise physical function and impair vital metabolic processes. Low levels of muscular fitness together with insufficient dietary intake are major risk factors for illness and mortality from all causes. Ultimately, muscle wasting contributes significantly to weakness, disability, increased hospitalization, immobility, and loss of independence. However, the extent of muscle wasting differs greatly between individuals due to differences in the aging process per se as well as physical activity levels...
February 2018: Aging and Disease
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