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https://www.readbyqxmd.com/read/29770880/intraoperative-periprosthetic-femur-fracture-during-bipolar-hemiarthroplasty-for-displaced-femoral-neck-fractures
#1
Choon Chiet Hong, Nazrul Nashi, Jiong Hao Tan, Ruben Manohara, Wei Ting Lee, Diarmuid Paul Murphy
INTRODUCTION: We aim to review the incidence and risk factors for the development of intraoperative periprosthetic femur fractures while performing a bipolar hemiarthroplasty for displaced neck of femur fractures. Our secondary aim is to characterize the types of intraoperative periprosthetic fractures, the steps leading to the fractures, and the salvage treatments instituted. MATERIALS AND METHODS: 271 patients treated with bipolar hemiarthroplasty after traumatic displaced femoral neck fractures were retrospectively analyzed...
May 17, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29764214/chronotype-influences-response-to-antidepressant-chronotherapeutics-in-bipolar-patients
#2
Sara Dallaspezia, Masahiro Suzuki, Locatelli Clara, Cristina Colombo, Francesco Benedetti
Patient diurnal mood fluctuation, sleep characteristics and factors affecting sleep homeostasis predict antidepressant response to the combination of total sleep deprivation and light therapy (TSD + LT). In order to study if chronotype could influence response to TSD+LT, we considered 194 bipolar depressed patients. Severity of depression was rated with Hamilton Depression Rating Scale; perceived mood levels were assessed by a self-administered 10-cm visual analogue scale and chronotype was assessed using the Mornigness-Eveningness Questionnaire...
May 15, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29760528/lrrtm4-c538y-novel-gene-mutation-is-associated-with-hereditary-macular-degeneration-with-novel-dysfunction-of-on-type-bipolar-cells
#3
Yuichi Kawamura, Akiko Suga, Takuro Fujimaki, Kazutoshi Yoshitake, Kazushige Tsunoda, Akira Murakami, Takeshi Iwata
The macula is a unique structure in higher primates, where cone and rod photoreceptors show highest density in the fovea and the surrounding area, respectively. The hereditary macular dystrophies represent a heterozygous group of rare disorders characterized by central visual loss and atrophy of the macula and surrounding retina. Here we report an atypical absence of ON-type bipolar cell response in a Japanese patient with autosomal dominant macular dystrophy (adMD). To identify a causal genetic mutation for the adMD, we performed whole-exome sequencing (WES) on four affected and four-non affected members of the family for three generations, and identified a novel p...
May 14, 2018: Journal of Human Genetics
https://www.readbyqxmd.com/read/29759944/testing-assumptions-on-prefrontal-transcranial-direct-current-stimulation-comparison-of-electrode-montages-using-multimodal-fmri
#4
Jana Wörsching, Frank Padberg, Stephan Goerigk, Irmgard Heinz, Christine Bauer, Christian Plewnia, Alkomiet Hasan, Birgit Ertl-Wagner, Daniel Keeser
BACKGROUND: Transcranial direct current stimulation (tDCS) of the prefrontal cortex (PFC) has been widely applied in cognitive neurosciences and advocated as a therapeutic intervention, e.g. in major depressive disorder. Although several targets and protocols have been suggested, comparative studies of tDCS parameters, particularly electrode montages and their cortical targets, are still lacking. OBJECTIVE: This study investigated a priori hypotheses on specific effects of prefrontal-tDCS montages by using multimodal functional magnetic resonance imaging (fMRI) in healthy participants...
May 4, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29758944/the-conundrum-of-gsk3-inhibitors-is-it-the-dawn-of-a-new-beginning
#5
Ratan V Bhat, Ulf Andersson, Shalini Andersson, Laurent Knerr, Udo Bauer, Anna Sundgren Andersson
Spanning over three decades of extensive drug discovery research, the efforts to develop a potent and selective GSK3 inhibitor as a therapeutic for the treatment of type 2 diabetes, Alzheimer's disease (AD), bipolar disorders and cancer have been futile. Since its initial discovery in 1980 and subsequent decades of research, one cannot underscore the importance of the target and the promise of a game changing disease modifier. Several pharmaceutical companies, biotech companies, and academic institutions raged in a quest to unravel the biology and discover potent and selective GSK3 inhibitors, some of which went through clinical trials...
May 11, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29754187/nationwide-multicenter-follow-up-cohort-study-of-hip-arthroplasties-performed-for-osteonecrosis-of-the-femoral-head
#6
Seneki Kobayashi, Toshikazu Kubo, Yukihide Iwamoto, Wakaba Fukushima, Nobuhiko Sugano
PURPOSE: To identify modifiable factors related to post-operative dislocation and reoperation in patients with osteonecrosis of the femoral head (ONFH) in a large cohort. METHODS: We studied 4995 hip arthroplasties: total hip arthroplasty (THA) was performed in 79% of patients; bipolar hemiarthroplasty (BP), 17%; total resurfacing arthroplasty (tRS), 3%; and hemi-resurfacing arthroplasty (hRS), 1%. A new type of BP (accounting for 49% of BPs) comprised a femoral component with a polished or smooth, small-diameter (approximately 10 mm) neck with a round or oval axial cut surface and no sharp corners...
May 12, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29753479/production-of-calcium-and-magnesium-enriched-caseins-and-caseinates-by-an-ecofriendly-technology
#7
Félix-André Masson, Sergey Mikhaylin, Laurent Bazinet
Finding new green ways of producing proteins has never been of such critical public interest, both to meet consumers' needs and to preserve the environment. Milk proteins are among the most attractive protein types due to their high nutritional value and attractive functional properties. In this work, the separation of caseins by conventional chemical acidification was compared with electrodialysis with bipolar membrane coupled to an ultrafiltration module (EDBM-UF), a green process that allows the precipitation of caseins by H+ generated in situ by the bipolar membrane and, simultaneously, the production of a separated NaOH stream from OH- electrogenerated by the bipolar membrane...
May 9, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29752725/identification-of-neun-immunopositive-cells-in-the-adult-mouse-subventricular-zone
#8
Kengo Saito, Taro Koike, Fumiaki Kawashima, Hirofumi Kurata, Taku Shibuya, Takemasa Satoh, Yoshio Hata, Hisao Yamada, Tetsuji Mori
In the adult rodent subventricular zone (SVZ), there are neural stem cells (NSCs) and the specialized neurogenic niche is critical to maintain their stemness. . To date, many cellular and non-cellular factors that compose the neurogenic niche and markers to identify subpopulations of Type A cells have been confirmed. In particular, neurotransmitters regulate adult neurogenesis and mature neurons in the SVZ have been only partially analyzed. Moreover, Type A cells, descendants of NSCs, are highly heterogeneous and more molecular markers are still needed to identify them...
May 11, 2018: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/29741202/identification-of-protein-kinase-c-%C3%AE-and-tyrosine-hydroxylase-immunoreactive-cells-in-the-microbat-retina
#9
Eun-Bee Park, Joo-Yeong Jeon, Chang-Jin Jeon
A growing number of studies have revealed the functional neuroarchitecture of the microbat retina and suggested that microbats can see using their eyes. To better understand the organization of the microbat retina, quantitative analysis of protein kinase C alpha (PKCα)- and tyrosine hydroxylase (TH)-immunoreactive (IR) cells was conducted on the greater horseshoe bat (Rhinolophus ferrumequinum) retina. As a result, PKCα immunoreactivity was observed in rod bipolar cells, consistent with previous studies on other mammalian retinas...
May 9, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29739870/pregnancy-associated-plasma-protein-aa-pappaa-regulates-photoreceptor-synaptic-development-to-mediate-visually-guided-behavior
#10
Andrew H Miller, Hollis B Howe, Bryan M Krause, Scott A Friedle, Matthew I Banks, Brian D Perkins, Marc A Wolman
To guide behavior, sensory systems detect the onset and offset of stimuli and process these distinct inputs via parallel pathways. In the retina, this strategy is implemented by splitting neural signals for light onset and offset via synapses connecting photoreceptors to ON and OFF bipolar cells, respectively. It remains poorly understood which molecular cues establish the architecture of this synaptic configuration to split light onset and offset signals. A mutant with reduced synapses between photoreceptors and one bipolar cell type, but not the other, could reveal a critical cue...
May 8, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29739866/region-specific-regulation-of-presynaptic-dopamine-homeostasis-by-d2-autoreceptors-shapes-the-in-vivo-impact-of-the-neuropsychiatric-disease-associated-dat-variant-val559
#11
Raajaram Gowrishankar, Paul J Gresch, Gwynne L Davis, Rania M Katamish, Justin R Riele, Adele M Stewart, Roxanne A Vaughan, Maureen K Hahn, Randy D Blakely
Disruptions of dopamine (DA) signaling contribute to a broad spectrum of neuropsychiatric disorders, including attention-deficit hyperactivity disorder (ADHD), addiction, bipolar disorder and schizophrenia. Despite evidence that risk for these disorders derives from heritable variation in DA-linked genes, a better understanding is needed of the molecular and circuit context through which gene variation drives distinct disease traits. Previously, we identified the DA transporter (DAT) variant Val559 in subjects with ADHD and established that the mutation supports anomalous DAT-mediated DA efflux (ADE)...
May 8, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29739438/automated-electrohysterographic-detection-of-uterine-contractions-for-monitoring-of-pregnancy-feasibility-and-prospects
#12
C Muszynski, T Happillon, K Azudin, J-B Tylcz, D Istrate, C Marque
BACKGROUND: Preterm birth is a major public health problem in developed countries. In this context, we have conducted research into outpatient monitoring of uterine electrical activity in women at risk of preterm delivery. The objective of this preliminary study was to perform automated detection of uterine contractions (without human intervention or tocographic signal, TOCO) by processing the EHG recorded on the abdomen of pregnant women. The feasibility and accuracy of uterine contraction detection based on EHG processing were tested and compared to expert decision using external tocodynamometry (TOCO) ...
May 8, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29739135/unipolar-mania-a-particular-aspect-of-bipolar-disorder-in-tunisia
#13
Badii Amamou, Wafa Chebbi, Myriam Allegue, Ahmed Mhalla, Ferid Zaafrane, Lotfi Gaha
Objective: Unipolar mania is a clinical reality in our daily practice. Many authors suggested that bipolar patients can have only manic episodes without depressions. These findings lead us to explore more this particularity. Methods: We conduct a retrospective, descriptive and comparative study including 173 patients, followed for bipolar disorder type I, according to the Diagnostic and Statistical Manual of Mental Disorders fifth edition criteria, during the period between January 2008 and December 2015...
May 31, 2018: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29737385/the-influence-of-social-support-on-psychological-distress-in-canadian-adults-with-bipolar-disorder
#14
Christie D Warren, Ken Fowler, David Speed, Anna Walsh
INTRODUCTION: Individuals with bipolar I disorder (BD-I) and bipolar II disorder (BD-II) are at higher risk for experiencing high levels of psychological distress and low levels of social support. OBJECTIVES: The primary objectives of this study were to examine perceived social support and psychological distress among Canadian adults with self-reported BD-I or BD-II as diagnosed by a health professional and explore the relationship between types of social support and psychological distress within this sample...
May 8, 2018: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/29737181/comparative-familial-aggregation-of-bipolar-disorder-in-patients-with-bipolar-i-and-bipolar-ii-disorders
#15
Gordon B Parker, Mia Romano, Rebecca K Graham, Tahlia Ricciardi
OBJECTIVE: We sought to quantify the prevalence and differential prevalence of a bipolar disorder among family members of patients with a bipolar I or II disorder. METHODS: The sample comprised 1165 bipolar and 1041 unipolar patients, with the former then sub-typed as having either a bipolar I or II condition. Family history data was obtained via an online self-report tool. RESULTS: Prevalence of a family member having a bipolar disorder (of either sub-type) was distinctive (36...
May 1, 2018: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/29734005/complexity-analysis-of-spontaneous-brain-activity-in-mood-disorders-a-magnetoencephalography-study-of-bipolar-disorder-and-major-depression
#16
Alberto Fernández, Ali H Al-Timemy, Francisco Ferre, Gabriel Rubio, Javier Escudero
BACKGROUND AND PURPOSE: The lack of a biomarker for Bipolar Disorder (BD) causes problems in the differential diagnosis with other mood disorders such as major depression (MD), and misdiagnosis frequently occurs. Bearing this in mind, we investigated non-linear magnetoencephalography (MEG) patterns in BD and MD. METHODS: Lempel-Ziv Complexity (LZC) was used to evaluate the resting-state MEG activity in a cross-sectional sample of 60 subjects, including 20 patients with MD, 16 patients with BD type-I, and 24 control (CON) subjects...
April 26, 2018: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29730937/familiality-of-psychiatric-disorders-and-risk-of-postpartum-psychiatric-episodes-a-population-based-cohort-study
#17
Anna E Bauer, Merete L Maegbaek, Xiaoqin Liu, Naomi R Wray, Patrick F Sullivan, William C Miller, Samantha Meltzer-Brody, Trine Munk-Olsen
OBJECTIVE: Postpartum psychiatric disorders are common and morbid complications of pregnancy. The authors sought to evaluate how family history of psychiatric disorders is associated with postpartum psychiatric disorders in proband mothers with and without a prior psychiatric history by assessing degree of relationship, type of disorder, and sex of family members. METHOD: The authors linked Danish birth and psychiatric treatment registers to evaluate familial risk of postpartum psychiatric episodes in a national population-based cohort...
May 7, 2018: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29729643/nanosecond-bipolar-pulse-generators-for-bioelectrics
#18
Shu Xiao, Chunrong Zhou, Enbo Yang, Sambasiva R Rajulapati
Biological effects caused by a nanosecond pulse, such as cell membrane permeabilization, peripheral nerve excitation and cell blebbing, can be reduced or cancelled by applying another pulse of reversed polarity. Depending on the degree of cancellation, the pulse interval of these two pulses can be as long as dozens of microseconds. The cancellation effect diminishes as the pulse duration increases. To study the cancellation effect and potentially utilize it in electrotherapy, nanosecond bipolar pulse generators must be made available...
April 26, 2018: Bioelectrochemistry
https://www.readbyqxmd.com/read/29723656/white-matter-microstructure-alterations-correlate-with-terminally-differentiated-cd8-effector-t-cell-depletion-in-the-peripheral-blood-in-mania-combined-dti-and-immunological-investigation-in-the-different-phases-of-bipolar-disorder
#19
Paola Magioncalda, Matteo Martino, Samuele Tardito, Bruno Sterlini, Benedetta Conio, Valentina Marozzi, Giulia Adavastro, Laura Capobianco, Daniel Russo, Alessia Parodi, Francesca Kalli, Giorgia Nasi, Tiziana Altosole, Niccolò Piaggio, Georg Northoff, Daniela Fenoglio, Matilde Inglese, Gilberto Filaci, Mario Amore
BACKGROUND: White matter (WM) microstructural abnormalities and, independently, signs of immunological activation were consistently demonstrated in bipolar disorder (BD). However, the relationship between WM and immunological alterations as well as their occurrence in the various phases of BD remain unclear. METHOD: In 60 type I BD patients - 20 in manic, 20 in depressive, 20 in euthymic phases - and 20 controls we investigated: (i) diffusion tensor imaging (DTI)-derived fractional anisotropy (FA), radial diffusivity (RD) and axial diffusivity (AD) using a tract-based spatial statistics (TBSS) approach; (ii) circulating T cell subpopulations frequencies, as well as plasma levels of different cytokines; (iii) potential relationships between WM and immunological data...
April 30, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29721929/mini-review-cell-type-specific-optogenetic-vision-restoration-approaches
#20
Antoine Chaffiol, Jens Duebel
The expression of light-sensitive microbial opsins is a promising mutation-independent approach to restore vision in retinal degenerative diseases. Using viral vectors, optogenetic tools can be genetically expressed in various subpopulations of retinal neurons. The choice of cell type depends on the availability of surviving retinal cells. If cones are still alive but they lack outer segments, they can be targeted with optogenetic inhibitors, such as halorhodopsin. Alternatively, it is possible to bypass the photoreceptors and to target bipolar cells...
2018: Advances in Experimental Medicine and Biology
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