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https://www.readbyqxmd.com/read/28809398/precision-medicine-for-suicidality-from-universality-to-subtypes-and-personalization
#1
A B Niculescu, H Le-Niculescu, D F Levey, P L Phalen, H L Dainton, K Roseberry, E M Niculescu, J O Niezer, A Williams, D L Graham, T J Jones, V Venugopal, A Ballew, M Yard, T Gelbart, S M Kurian, A Shekhar, N J Schork, G E Sandusky, D R Salomon
Suicide remains a clear, present and increasing public health problem, despite being a potentially preventable tragedy. Its incidence is particularly high in people with overt or un(der)diagnosed psychiatric disorders. Objective and precise identification of individuals at risk, ways of monitoring response to treatments and novel preventive therapeutics need to be discovered, employed and widely deployed. We sought to investigate whether blood gene expression biomarkers for suicide (that is, a 'liquid biopsy' approach) can be identified that are more universal in nature, working across psychiatric diagnoses and genders, using larger cohorts than in previous studies...
August 15, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28807025/changes-in-tibialis-anterior-architecture-affect-the-amplitude-of-surface-electromyograms
#2
Taian M Vieira, Maria Cristina Bisi, Rita Stagni, Alberto Botter
BACKGROUND: Variations in the amplitude of surface electromyograms (EMGs) are typically considered to advance inferences on the timing and degree of muscle activation in different circumstances. Surface EMGs are however affected by factors other than the muscle neural drive. In this study, we use electrical stimulation to investigate whether architectural changes in tibialis anterior (TA), a key muscle for balance and gait, affect the amplitude of surface EMGs. METHODS: Current pulses (500 μs; 2 pps) were applied to the fibular nerve of ten participants, with the ankle at neutral, full dorsi and full plantar flexion positions...
August 14, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28803680/corrigendum-to-analysis-of-association-between-common-snps-in-erbb4-and-bipolar-affective-disorder-major-depressive-disorder-and-schizophrenia-in-the-han-chinese-population-prog-neuro-psychopharmacol-biol-psychiatry-36-2012-17-21
#3
P Chen, J Chen, K Huang, W Ji, T Wang, T Li, Y Wang, H Wang, L He, G Feng, Y Shi
No abstract text is available yet for this article.
August 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28802190/alcohol-use-and-bipolar-disorders-risk-factors-associated-with-their-co-occurrence-and-sequence-of-onsets
#4
Jean-Michel Azorin, Léa C Perret, Eric Fakra, Sébastien Tassy, Nicolas Simon, Marc Adida, Raoul Belzeaux
BACKGROUND: Little is known about the sequence of onsets in patients affected by comorbid alcohol use and bipolar disorder. This study examines the risk factors associated with their co-occurrence and order of onset. METHOD: The demographic, clinical, and temperament characteristics as well as the course of illness were analyzed within our sample of 1090 DSM-IV bipolar I manic patients. Our sample was categorized according to the presence of comorbid alcohol use disorder and the sequence of onsets of bipolar and alcohol use disorders i...
August 3, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28797874/factors-affecting-articular-cartilage-repair-after-open-wedge-high-tibial-osteotomy
#5
Chang-Wan Kim, Seung-Suk Seo, Chang-Rack Lee, Heui-Chul Gwak, Jung-Han Kim, Sun-Gyu Jung
BACKGROUND: To evaluate the factors that affect articular cartilage repair after open-wedge high tibial osteotomy (OWHTO) and the relationship between regeneration of articular cartilage repair and clinical outcomes. METHODS: Among the cases of OWHTO that were performed from March 2005 to February 2012, the patients who followed up for >2years and received a second-look arthroscopy were retrospectively reviewed. For clinical evaluation, the Knee Society scores and Western Ontario and McMaster Universities Osteoarthritis Index score were measured...
August 8, 2017: Knee
https://www.readbyqxmd.com/read/28797167/electron-transfer-gated-ion-transport-in-carbon-nanopipettes
#6
Dengchao Wang, Michael V Mirkin
Coating the inner wall of a quartz nanopipette with a thin layer of carbon yields a nanopore with the tunable surface charge and chemical state for resistive-pulse and rectification sensing. Herein we report the experimental study and modeling of the electron-transfer gated ion transport processes in carbon nanopipettes. The potential of the unbiased carbon layer can be tuned by adding very low (sub-nM) concentrations of redox species to the solution via bipolar electrochemistry. The potential of carbon determines the electrical double layer structure that, in turn, affects the ionic transport processes...
August 11, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28796636/effect-of-tms-coil-orientation-on-the-spatial-distribution-of-motor-evoked-potentials-in-an-intrinsic-hand-muscle
#7
Victor Hugo Souza, Taian Martins Vieira, André Salles Cunha Peres, Marco Antonio Cavalcanti Garcia, Claudia Domingues Vargas, Oswaldo Baffa
Previous reports on the relationship between coil orientation and amplitude of motor evoked potential (MEP) in transcranial magnetic stimulation (TMS) did not consider the effect of electrode arrangement. Here we explore this open issue by investigating whether TMS coil orientation affects the amplitude distribution of MEPs recorded from the abductor pollicis brevis (APB) muscle with a bi-dimensional grid of 61 electrodes. Moreover, we test whether conventional mono- and bipolar montages provide representative MEPs compared to those from the grid of electrodes...
August 10, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28794445/igf-1-receptor-regulates-dynamic-changes-in-neuronal-polarity-during-cerebral-cortical-migration
#8
Álvaro F Nieto Guil, Mariana Oksdath, Linnea A Weiss, Diego J Grassi, Lucas J Sosa, Marta Nieto, Santiago Quiroga
During cortical development, neurons undergo polarization, oriented migration and layer-type differentiation. The biological and biochemical mechanisms underlying these processes are not completely understood. In neurons in culture we showed that IGF-1 receptor activation is important for growth cone assembly and axonal formation. However, the possible roles of the insulin like growth factor-1 receptor (IGF-1R) on neuronal differentiation and polarization in vivo in mammals have not yet been studied. Using in utero electroporation, we show here that the IGF-1R is essential for neocortical development...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28793231/association-of-mitochondrial-dna-10398-a-g-polymorphism-with-attention-deficit-and-hyperactivity-disorder-in-korean-children
#9
In Wook Hwang, Jun Ho Hong, Bit Na Kwon, Hyung Jun Kim, Nu Ri Lee, Myung Ho Lim, Ho Jang Kwon, Han Jun Jin
Mitochondria are subcellular organelles that contribute to aerobic ATP generation by oxidative phosphorylation (OXPHOS). Previous studies reported that mitochondrial dysfunction and deficiency caused by mitochondrial DNA polymorphisms is associated with various diseases. Especially, mitochondrial DNA 10398 A/G polymorphism is known to affect the regulation of mitochondrial calcium levels related to energy production, and its association with psychiatric disorders such as schizophrenia and bipolar disorder has been reported...
August 6, 2017: Gene
https://www.readbyqxmd.com/read/28792954/variants-in-calcium-voltage-gated-channel-subunit-alpha1-c-gene-cacna1c-are-associated-with-sleep-latency-in-infants
#10
Katri Kantojärvi, Johanna Liuhanen, Outi Saarenpää-Heikkilä, Anna-Liisa Satomaa, Anneli Kylliäinen, Pirjo Pölkki, Julia Jaatela, Auli Toivola, Lili Milani, Sari-Leena Himanen, Tarja Porkka-Heiskanen, Juulia Paavonen, Tiina Paunio
Genetic variants in CACNA1C (calcium voltage-gated channel subunit alpha1 C) are associated with bipolar disorder and schizophrenia where sleep disturbances are common. In an experimental model, Cacna1c has been found to modulate the electrophysiological architecture of sleep. There are strong genetic influences for consolidation of sleep in infancy, but only a few studies have thus far researched the genetic factors underlying the process. We hypothesized that genetic variants in CACNA1C affect the regulation of sleep in early development...
2017: PloS One
https://www.readbyqxmd.com/read/28790543/haemorrhage-rates-after-two-commonly-used-tonsillectomy-methods-a-multicenter-study
#11
Faris Brkic, Majda Mujic, Sekib Umihanic, Nermin Hrncic, Amna Goga, Ermin Goretic
INTRODUCTION: Tonsillectomy is a frequently used, low-risk surgical procedure. The post-tonsillectomy haemorrhage occurs rarely, but is a life-threatening complication. Some studies show that the surgical technique affects the haemorrhage rate. AIMS: To analyse the post-tonsillectomy haemorrhage rate, and to determine whether the effect of the surgical technique on the haemorrhage rate exists. METHODS: We retrospectively reviewed data of all patients who underwent a tonsillectomy in three regional ENT departments in Bosnia and Herzegovina (Tuzla, Zenica and Bihac) between January 1(st) 2015 and October 31(st) 2016...
April 2017: Medical Archives
https://www.readbyqxmd.com/read/28777981/childhood-trauma-dimensions-of-psychopathology-and-the-clinical-expression-of-bipolar-disorders-a-pathway-analysis
#12
B Etain, M Lajnef, C Henry, V Aubin, J M Azorin, F Bellivier, T Bougerol, P Courtet, S Gard, J P Kahn, C Passerieux, M Leboyer
BACKGROUND: This study aims at testing for paths from childhood abuse to clinical indicators of complexity in bipolar disorder (BD), through dimensions of affective dysregulation, impulsivity and hostility. METHOD: 485 euthymic patients with BD from the FACE-BD cohort were included from 2009 to 2014. We collect clinical indicators of complexity/severity: age and polarity at onset, suicide attempt, rapid cycling and substance misuse. Patients completed questionnaires to assess childhood emotional, sexual and physical abuses, affective lability, affect intensity, impulsivity, motor and attitudinal hostility...
July 29, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28777507/the-medicare-chronic-disease-dental-scheme-historical-scientific-socio-political-origins
#13
Harry Francis Akers, Arosha Tania Weerakoon, Michael Anthony Foley, Andrew James McAuliffe
While evidence and expert opinion are the foundations of effective policy, the politics, economics, and timing of a proposal can affect outcome. Australian government involvement in the planning, funding and delivery of dental services has been minimal and inconsistent. Many believe that the hybrid dispersal model of shared constitutional power has intermittently led to poor administration of national health policy. Throughout the decade-long prelude to the introduction of the Chronic Disease Dental Scheme, a landmark health policy in Australia, Parliamentarians moved responsibility for public dental services of disadvantaged Australians into an impasse between the Federal, State, and Territorial Governments...
July 2017: Journal of the History of Dentistry
https://www.readbyqxmd.com/read/28776766/utility-of-functioning-measures-in-the-prediction-of-independent-living-status-in-older-adults-with-serious-mental-illness
#14
Karen L Fortuna, Matthew C Lohman, Martha L Bruce, Stephen J Bartels
OBJECTIVE: The objective of the study was to compare the predictive utility of three commonly used functioning measures for people with serious mental illness in the prediction of independent living status. METHODS: We conducted a secondary data analysis from the Helping Older People Experience Success study with adults aged 50 years and older with a diagnosis of bipolar disorder, schizoaffective disorder, schizophrenia, or major depressive disorder (N = 183)...
August 4, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28765756/wavefront-direction-and-cycle-length-affect-left-atrial-electrogram-amplitude
#15
Kazuki Iso, Ichiro Watanabe, Rikitake Kogawa, Yasuo Okumura, Koichi Nagashima, Keiko Takahashi, Ryuta Watanabe, Masaru Arai, Kimie Ohkubo, Toshiko Nakai, Atsushi Hirayama, Mizuki Nikaido
BACKGROUND: The relationship between atrial electrogram (EGM) characteristics in atrial fibrillation (AF) and those in sinus rhythm (SR) are generally unknown. The activation rate and direction may affect EGM characteristics. We examined characteristics of left atrial (LA) EGMs obtained during pacing from different sites. METHODS: The study included 10 patients undergoing pulmonary vein isolation for AF. Atrial EGMs were recorded from a 64-pole basket catheter placed in the LA, and bipolar EGM amplitudes from the distal electrode pair (1-2) and proximal electrode pair (6-7) from 8 splines were averaged...
August 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28763060/bace1-inhibition-by-microdose-lithium-formulation-np03-rescues-memory-loss-and-early-stage-amyloid-neuropathology
#16
E N Wilson, S Do Carmo, M F Iulita, H Hall, A Ducatenzeiler, A R Marks, S Allard, D T Jia, J Windheim, A C Cuello
Lithium is first-line therapy for bipolar affective disorder and has recently been shown to have protective effects in populations at risk for Alzheimer's disease (AD). However, the mechanism underlying this protection is poorly understood and consequently limits its possible therapeutic application in AD. Moreover, conventional lithium formulations have a narrow therapeutic window and are associated with a severe side effect profile. Here we evaluated a novel microdose formulation of lithium, coded NP03, in a well-characterized rat model of progressive AD-like amyloid pathology...
August 1, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28755604/perceived-expressed-emotions-in-relatives-of-patients-with-severe-mental-illness-a-comparative-study
#17
Olaniyi Ayilara, Adegboyega Ogunwale, Emmanuel Babalola
There is paucity of studies on expressed emotion (EE) in families of patients with severe mental illness in sub-Saharan Africa. This study aimed to assess and compare the levels of expressed emotion (LEE) in relatives of patients with schizophrenia and bipolar affective disorder attending an out-patient clinic in Southwestern Nigeria. One hundred and forty consecutive clinic attendees with Mini-Plus diagnosis of schizophrenia and bipolar affective disorder and 140 accompanying relatives were recruited. The patients and relatives were interviewed using a socio-demographic questionnaire...
July 20, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28754344/the-effect-of-childhood-trauma-on-serum-bdnf-in-bipolar-depression-is-modulated-by-the-serotonin-promoter-genotype
#18
Francesco Benedetti, Oliver Ambrée, Clara Locatelli, Cristina Lorenzi, Sara Poletti, Cristina Colombo, Volker Arolt
In healthy humans, both childhood trauma and the short form of the serotonin promoter transporter genotype (5-HTTLPR) are associated with lower levels of brain-derived neurotrophic factor (BDNF). In subjects with bipolar disorder (BD), lower levels of BDNF and a higher degree of childhood trauma were observed compared with healthy controls. However, is still unknown if the functional 5-HTTLPR polymorphisms exerts an effect on both abnormalities. In 40 inpatients affected by a major depressive episode in the course of BD, we genotyped 5-HTTLPR, measured serum BDNF with ELISA, and assessed early adversities by the childhood trauma questionnaire (CTQ)...
July 25, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28754273/effects-of-psychopharmacological-treatment-with-antidepressants-on-the-vascular-system
#19
REVIEW
Kai G Kahl, Mechthild Westhoff-Bleck, Tillmann H C Krüger
Psychopharmacological treatment with antidepressants is an essential part of guideline-based treatment strategies in affective disorders, such as major depressive disorder, persistent depressive disorder, and bipolar disorder. Furthermore, antidepressants are frequently prescribed in patients with physical disorders, such as cardiovascular diseases, and comorbid depression. The type of association between physical diseases, particularly chronic diseases, and depression is bidirectional, meaning that affective disorders enhance the risk for the development of cardiovascular and metabolic disorders, and that cardiovascular/metabolic disorders enhance the risk for the development of depressive disorders...
July 25, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28751151/development-of-refractive-errors-what-can-we-learn-from-inherited-retinal-dystrophies
#20
Michelle Hendriks, Virginie J M Verhoeven, Gabriëlle H S Buitendijk, Jan Roelof Polling, Magda A Meester-Smoor, Albert Hofman, Maarten Kamermans, L Ingeborgh van den Born, Caroline C W Klaver
PURPOSE: It is unknown which retinal cells are involved in the retina-to-sclera signaling cascade causing myopia. As inherited retinal dystrophies (IRD) are characterized by dysfunction of a single retinal cell type and have a high risk of refractive errors, a study investigating the affected cell type, causal gene and refractive error in IRDs may provide insight herein. DESIGN: Case-control study. METHODS: Study population: 302 patients with IRD from two ophthalmogenetic centers in the Netherlands...
July 24, 2017: American Journal of Ophthalmology
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