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https://www.readbyqxmd.com/read/29323198/paroxysmal-nocturnal-hemoglobinuria-pnh-brain-mri-ischemic-lesions-in-neurologically-asymtomatic-patients
#1
Wilma Barcellini, Elisa Scola, Silvia Lanfranconi, Marika Grottaroli, Francesca Binda, Bruno Fattizzo, Anna Zaninoni, Gloria Valcamonica, Claudia Maria Cinnante, Carla Boschetti, Massimiliano Buoli, Carlo Alfredo Altamura, Nereo Bresolin, Fabio Triulzi, Alberto Zanella, Agostino Cortelezzi
This study investigated for the first time brain ischemic involvement in 19 consecutive neurologically asymptomatic PNH patients by non-enhanced cerebral MRI, and by intracranial arterial and venous angio-MRI. Eleven cases (58%, 7 aged <65) showed pathological findings: 9 white matter (WM) abnormalities related to chronic ischemic small vessel disease, 2 a focal abnormality >5 mm, and 5 cases a score >4 by the age-related white matter changes (ARWMC) scale. Compared with age and sex-matched controls (1:2 ratio), patients showed an increased frequency of periventricular WM vascular degeneration (32% versus 5...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29289171/comparison-of-the-leading-edge-timing-walk-in-pulsed-tof-laser-range-finding-with-avalanche-bipolar-junction-transistor-bjt-and-metal-oxide-semiconductor-mos-switch-based-laser-diode-drivers
#2
Mikko Hintikka, Lauri Hallman, Juha Kostamovaara
Timing walk error in pulsed time-of-flight based laser range finding was studied using two different types of laser diode drivers. The study compares avalanche bipolar junction transistor (BJT) and metal-oxide-semiconductor field-effect transistor switch based laser pulse drivers, both producing 1.35 ns current pulse length (full width at half maximum), and investigates how the slowly rising part of the current pulse of the avalanche BJT based driver affects the leading edge timing walk. The walk error was measured to be very similar with both drivers within an input signal dynamic range of 1:10 000 (receiver bandwidth of 700 MHz) but increased rapidly with the avalanche BJT based driver at higher values of dynamic range...
December 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29282470/efficacy-and-safety-of-transcranial-direct-current-stimulation-as-an-add-on-treatment-for-bipolar-depression-a-randomized-clinical-trial
#3
Bernardo Sampaio-Junior, Gabriel Tortella, Lucas Borrione, Adriano H Moffa, Rodrigo Machado-Vieira, Eric Cretaz, Adriano Fernandes da Silva, Renério Fraguas, Luana V Aparício, Izio Klein, Beny Lafer, Stephan Goerigk, Isabela Martins Benseñor, Paulo Andrade Lotufo, Wagner F Gattaz, André Russowsky Brunoni
Importance: More effective, tolerable interventions for bipolar depression treatment are needed. Transcranial direct current stimulation (tDCS) is a novel therapeutic modality with few severe adverse events that showed promising results for unipolar depression. Objective: To determine the efficacy and safety of tDCS as an add-on treatment for bipolar depression. Design, Setting, and Participants: A randomized, sham-controlled, double-blind trial (the Bipolar Depression Electrical Treatment Trial [BETTER]) was conducted from July 1, 2014, to March 30, 2016, at an outpatient, single-center academic setting...
December 27, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/29275886/the-extent-of-left-atrial-low-voltage-areas-included-in-pulmonary-vein-isolation-is-associated-with-freedom-from-recurrent-atrial-arrhythmia
#4
Dong Huang, Jing-Bo Li, Tarek Zghaib, Esra Gucuk Ipek, Muhammad Balouch, David D Spragg, Hiroshi Ashikaga, Harikrishna Tandri, Sunil K Sinha, Joseph E Marine, Ronald D Berger, Hugh Calkins, Saman Nazarian
BACKGROUND: The extent of left atrial (LA) baseline low-voltage areas (LVA-B), which may be a surrogate for fibrosis, is associated with recurrent atrial fibrillation (AF) after ablation. This study aimed to assess the relationship between the extent of LVA-B isolated by ablation (LVA-I) and AF recurrence. METHODS: The study cohort included 159 consecutive patients with drug-refractory AF who underwent an initial AF ablation with LA voltage mapping during sinus rhythm...
January 2018: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29275593/-impact-on-the-incidence-of-postoperative-ventricular-arrhythmias-after-cardiac-resynchronization-therapy-defibrillator-with-quadripolar-lead
#5
G H Wu, K Y Chen, F Yu, Q Wang, J Xu, H Su, D M Yang, J Yan
Objective: To evaluate incidence of postoperative ventricular arrhythmias in patients who received cardiac resynchronization therapy defibrillator (CRT-D ) with left ventricular quadripolar lead. Methods: The patients received CRT-D who had complete follow-up data in Anhui Provincial Hospital from June 2013 to June 2016 were included and divided into quadripolar lead group and bipolar lead group according to the type of left ventricular lead. And ventricular arrhythmia (VA), implantable cardioverter-defibrillator (ICD) shocks treatment, antitachycardia pacing therapy (ATP), and other indicators of the two groups were compared...
December 5, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29248821/psychometric-properties-of-the-well-being-index-who-5-spanish-version-in-a-sample-of-euthymic-patients-with-bipolar-disorder
#6
C M Bonnín, L N Yatham, E E Michalak, A Martínez-Arán, T Dhanoa, I Torres, C Santos-Pascual, E Valls, A F Carvalho, J Sánchez-Moreno, M Valentí, I Grande, D Hidalgo-Mazzei, E Vieta, M Reinares
BACKGROUND: The concept of well-being which focuses on positive emotions has received increased research attention. However, a consensus definition of this term is lacking. The Well-Being Index scale (WHO-5) is a generic, self-report scale that contains five Likert-type items to evaluate psychological well-being. This construct may provide a relevant outcome in bipolar disorder (BD) research and care beyond the rating of mood symptoms. Thus, in the current study, the psychometric properties of the WHO-5 Spanish version were assessed in a sample of euthymic patients with BD...
December 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29222987/frequency-and-correlates-of-tardive-dyskinesia-in-indian-patients-with-type-i-bipolar-disorder
#7
Tess Maria Rajan, Balaji Bharadwaj, Ravi Philip Rajkumar, Prashant Shankarrao Adole
BACKGROUND: Patients with Bipolar Disorder (BD) may have higher risk of Tardive Dyskinesia (TD). Theories for TD include inflammatory or oxidative stress and altered iron metabolism. The current frequency and clinical and biochemical correlates of TD in BD needs exploration. OBJECTIVES: To assess: (1) the frequency of TD in BD; (2) clinical correlates of TD in BD; (3) oxidative stress markers, inflammatory markers and hepcidin in TD in BD. MATERIALS & METHODS: In this cross-sectional study, 170 patients with BD were assessed for clinical characteristics using structured assessments...
December 5, 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29207144/dner-modulates-the-length-polarity-and-synaptogenesis-of-spiral-ganglion-neurons-via-the-notch-signaling-pathway
#8
Jintao Du, Xianren Wang, Xiaobo Zhang, Xuemei Zhang, Hongyan Jiang
The Delta/Notch‑like epidermal growth factor‑related receptor (DNER) serves an important role in the developing central nervous system. However, the actions of DNER in the development of the spiral ganglion in the inner ear have yet to be elucidated. Wild‑type C57BL/6 mice were housed and time‑mated for use in the present study. Primary neuronal cultures were prepared using spiral ganglion progenitors isolated from the modiolus of postnatal day 1 (P1) mice. DNER recombinant lentiviral vectors were constructed and transfected into the cultured primary neurons...
November 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29204649/aav2-mediated-transduction-of-the-mouse-retina-after-optic-nerve-injury
#9
Robert W Nickells, Heather M Schmitt, Margaret E Maes, Cassandra L Schlamp
Purpose: Gene therapy of retinal ganglion cells (RGCs) has promise as a powerful therapeutic for the rescue and regeneration of these cells after optic nerve damage. However, early after damage, RGCs undergo atrophic changes, including gene silencing. It is not known if these changes will deleteriously affect transduction and transgene expression, or if the therapeutic protein can influence reactivation of the endogenous genome. Methods: Double-transgenic mice carrying a Rosa26-(LoxP)-tdTomato reporter, and a mutant allele for the proapoptotic Bax gene were reared...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29201622/self-tuning-n-type-bi2-te-se-3-sic-thermoelectric-nanocomposites-to-realize-high-performances-up-to-300-%C3%A2-c
#10
Yu Pan, Umut Aydemir, Fu-Hua Sun, Chao-Feng Wu, Thomas C Chasapis, G Jeffrey Snyder, Jing-Feng Li
Bi2Te3 thermoelectric materials are utilized for refrigeration for decades, while their application of energy harvesting requires stable thermoelectric and mechanical performances at elevated temperatures. This work reveals that a steady zT of ≈0.85 at 200 to 300 °C can be achieved by doping small amounts of copper iodide (CuI) in Bi2Te2.2Se0.8-silicon carbide (SiC) composites, where SiC nanodispersion enhances the flexural strength. It is found that CuI plays two important roles with atomic Cu/I dopants and CuI precipitates...
November 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29198644/the-diagnostic-usefulness-of-the-negative-electroretinogram
#11
C Fuente García, J J González-López, F J Muñoz-Negrete, G Rebolleda
The definition of the negative response of the full field electroretinogram is the presence of a b-wave with less amplitude than the a-wave (b/a ratio<1) in the combined response of cones and rods. The presence of this pattern reflects an alteration in the bipolar cells, the Müller cells, or in the transmission of the stimulus from the photoreceptors to the bipolar cells, with preserved photoreceptor function. This finding can be seen bilaterally and symmetrically in different hereditary conditions, such as congenital stationary night blindness, juvenile X-linked retinoschisis, and Duchenne and Becker muscular dystrophies...
November 30, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/29197159/intra-ocular-diathermy-forceps
#12
Koen A van Overdam, Emine Kilic, Robert M Verdijk, Sonia Manning
PURPOSE: The purpose of this study was to develop intra-ocular diathermy forceps and test them on perfused porcine cadaver eyes. METHODS: We designed two types of 23-gauge intra-ocular bipolar diathermy forceps by modifying commercially available membrane peeling forceps. In the first type, the emitting electrode is connected to one-half of the core and the return electrode to the other half, with one jaw of the forceps attached to each half. In the second type, the emitting electrode is attached to the core and both jaws of the forceps, and the return electrode to the surrounding tube...
December 2, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29192581/genetic-influences-on-evening-preference-overlap-with-those-for-bipolar-disorder-in-a-sample-of-mexican-americans-and-american-indians
#13
Whitney E Melroy-Greif, Ian R Gizer, Kirk C Wilhelmsen, Cindy L Ehlers
Diurnal preference (e.g., being an owl or lark) has been associated with several psychiatric disorders including bipolar disorder (BP), major depressive disorder, and substance use disorders. Previous large-scale genome-wide association studies (GWAS) aimed at identifying genetic influences on diurnal preference have exclusively included subjects of European ancestry. This study examined the genetic architecture of diurnal preference in two minority samples: a young adult sample of Mexican Americans (MAs), and a family-based sample of American Indians (AIs)...
December 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/29187730/genome-wide-analysis-in-uk-biobank-identifies-four-loci-associated-with-mood-instability-and-genetic-correlation-with-major-depressive-disorder-anxiety-disorder-and-schizophrenia
#14
Joey Ward, Rona J Strawbridge, Mark E S Bailey, Nicholas Graham, Amy Ferguson, Donald M Lyall, Breda Cullen, Laura M Pidgeon, Jonathan Cavanagh, Daniel F Mackay, Jill P Pell, Michael O'Donovan, Valentina Escott-Price, Daniel J Smith
Mood instability is a core clinical feature of affective and psychotic disorders. In keeping with the Research Domain Criteria approach, it may be a useful construct for identifying biology that cuts across psychiatric categories. We aimed to investigate the biological validity of a simple measure of mood instability and evaluate its genetic relationship with several psychiatric disorders, including major depressive disorder (MDD), bipolar disorder (BD), schizophrenia, attention deficit hyperactivity disorder (ADHD), anxiety disorder and post-traumatic stress disorder (PTSD)...
November 30, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/29180712/colour-discrimination-thresholds-in-type-1-bipolar-disorder-a-pilot-study
#15
Thiago Monteiro Paiva Fernandes, Suellen Marinho Andrade, Michael Jackson Oliveira de Andrade, Renata Maria Toscano Barreto Lyra Nogueira, Natanael Antonio Santos
Although some studies have reported perceptual changes in psychosis, no definitive conclusions have been drawn about visual disturbances that are related to bipolar disorder (BPD). The purpose of the present study was to evaluate colour vision in BPD patients. Data were recorded from 24 participants: healthy control group (n = 12) and type 1 BPD group (n = 12). The participants were 20-45 years old and they were free from neurological disorders and identifiable ocular disease and had normal or corrected-to-normal visual acuity...
November 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29167880/association-between-schizophrenia-related-polygenic-liability-and-the-occurrence-and-level-of-mood-incongruent-psychotic-symptoms-in-bipolar-disorder
#16
Judith Allardyce, Ganna Leonenko, Marian Hamshere, Antonio F Pardiñas, Liz Forty, Sarah Knott, Katherine Gordon-Smith, David J Porteous, Caroline Haywood, Arianna Di Florio, Lisa Jones, Andrew M McIntosh, Michael J Owen, Peter Holmans, James T R Walters, Nicholas Craddock, Ian Jones, Michael C O'Donovan, Valentina Escott-Price
Importance: Bipolar disorder (BD) overlaps schizophrenia in its clinical presentation and genetic liability. Alternative approaches to patient stratification beyond current diagnostic categories are needed to understand the underlying disease processes and mechanisms. Objective: To investigate the association between common-variant liability for schizophrenia, indexed by polygenic risk scores (PRSs), and psychotic presentations of BD. Design, Setting, and Participants: This case-control study in the United Kingdom used multinomial logistic regression to estimate differential PRS associations across categories of cases and controls...
November 22, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/29162549/diversification-dynamics-and-transoceanic-eurasian-australian-disjunction-in-the-genus-picris-compositae-induced-by-the-interplay-of-shifts-in-intrinsic-extrinsic-traits-and-paleoclimatic-oscillations
#17
Marek Slovák, Jaromír Kučera, Hans Walter Lack, Jotham Ziffer-Berger, Andrea Melicharková, Eliška Záveská, Peter Vďačný
Understanding transcontinental biogeographic patterns has been one of the main foci of the field of biogeography. While multiple explanations for transcontinental disjunctions have been proposed, little is still known about the relative importance of intrinsic and extrinsic traits for the diversification dynamics of disjunct taxa. Here, we study the evolutionary history of the genus Picris L. (Compositae), a great model for investigating the diversification dynamics of transoceanic bipolar disjunct organisms...
November 18, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29151718/achievement-of-adequate-glycemic-control-in-patients-with-type-2-diabetes-and-comorbid-mental-health-conditions-treated-in-a-primary-care-setting
#18
Kaitlyn Brown, Katherine Fortenberry, Lisa Gren, Karen Gunning, Carrie McAdam-Marx
Objective: This study investigated the association between the presence of a mental health condition (MHC) diagnosis and glycemic control in patients with type 2 diabetes in a primary care clinic network. Methods: This retrospective cross-sectional study compared adequate glycemic control (A1C <8.0%) in patients with type 2 diabetes with and without any MHC, as well as by MHC subtypes of depression or anxiety, bipolar or schizophrenia disorders, and substance use disorder...
November 2017: Diabetes Spectrum: a Publication of the American Diabetes Association
https://www.readbyqxmd.com/read/29125183/ovarian-surgery-for-symptom-relief-in-women-with-polycystic-ovary-syndrome
#19
REVIEW
Sam Lepine, Junyoung Jo, Mostafa Metwally, Ying C Cheong
BACKGROUND: Polycystic ovary syndrome (PCOS) is a common endocrine condition, affecting approximately one in 10 women. PCOS is defined by two of three features: oligo- or anovulation, clinical or biochemical hyperandrogenism or both, or polycystic ovaries.Women with PCOS can have a wide range of health problems, including infrequent and irregular periods, unwanted hair growth and acne, and subnormal fertility. Long-term health concerns include an increased risk of heart disease, diabetes and the development of precancerous disease of the womb...
November 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29119926/-the-role-of-cxcr3-in-neurological-diseases
#20
Ya-Qun Zhou, Dai-Qiang Liu, Shu-Ping Chen, Jia Sun, Xue-Rong Zhou, Cui Xing, Da-Wei Ye, Yu-Ke Tian
Neurological diseases have become an obvious challenge due to insufficient therapeutic intervention. Therefore, novel drugs for various neurological disorders are in desperate need. Recently, compelling evidence has demonstrated that chemokine receptor CXCR3, which is a G protein-coupled receptor in the CXC chemokine receptor family, may play a pivotal role in the development of neurological diseases. The expression level of CXCR3 in T cells was significantly elevated in several neurological diseases, suggesting a potential therapeutic role of CXCR3 antagonists...
November 9, 2017: Current Neuropharmacology
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