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https://www.readbyqxmd.com/read/29777776/distinct-roles-for-the-cell-adhesion-molecule-contactin2-in-the-development-and-function-of-neural-circuits-in-zebrafish
#1
Suman Gurung, Emilia Asante, Devynn Hummel, Ashley Williams, Oren Feldman-Schultz, Mary C Halloran, Vinoth Sittaramane, Anand Chandrasekhar
Contactin2 (Cntn2)/Transient Axonal Glycoprotein 1 (Tag1), a neural cell adhesion molecule, has established roles in neuronal migration and axon fasciculation in chick and mouse. In zebrafish, antisense morpholino-based studies have indicated roles for cntn2 in the migration of facial branchiomotor (FBM) neurons, the guidance of the axons of the nucleus of the medial longitudinal fascicle (nucMLF), and the outgrowth of Rohon-Beard (RB) central axons. To study functions of Cntn2 in later stages of neuronal development, we generated cntn2 mutant zebrafish using CRISPR-Cas9...
May 16, 2018: Mechanisms of Development
https://www.readbyqxmd.com/read/29777461/hiv-aids-and-an-overweight-body-mass-are-associated-with-excessive-intra-individual-variability-in-response-preparation
#2
Lance O Bauer
Factors other than HIV/AIDS may influence the cognitive function of patients living with this disease. The present study tested the influence of a common comorbid problem-an overweight body mass. It also examined intra-task variabilities in performance and brain activation as potentially more sensitive indicators of dysfunction than their mean levels. One-hundred seventy-eight participants were recruited and categorized by HIV-1 serostatus (-/+) and body mass (BMI < 26/≥ 26 kg/m2 ). They performed a simple time estimation task during which response time accuracy and electroencephalographic readiness potentials were recorded...
May 17, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29777311/sufficiency-of-curing-in-high-viscosity-bulk-fill-resin-composites-with-enhanced-opacity
#3
Nicoleta Ilie
OBJECTIVES: The study aims analyzing if improved opacity in modern high-viscosity bulk-fill resin composites (BF-RBC) contradicts with the sufficiency of curing and to assess material's tolerance to less ideal curing conditions. MATERIALS AND METHODS: Simulated large cavities (10 × 6) mm were filled in one increment with three BF-RBCs (Filtek One, FO; Tetric Evo Ceram Bulk Fill, TEC-BF; SonicFill2, SF2). One central and two peripheral (4 mm apart from the center) micromechanical property line-profiles (HV, Vickers hardness; YHU , indentation modulus) were measured in 0...
May 18, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29776992/cardiomyopathy-mutation-f88l-in-troponin-t-abolishes-length-dependency-of-myofilament-ca-2-sensitivity
#4
Sherif M Reda, Murali Chandra
Recent clinical studies have revealed a new hypertrophic cardiomyopathy-associated mutation (F87L) in the central region of human cardiac troponin T (TnT). However, despite its implication in several incidences of sudden cardiac death in young and old adults, whether F87L is associated with cardiac contractile dysfunction is unknown. Because the central region of TnT is important for modulating the muscle length-mediated recruitment of new force-bearing cross-bridges (XBs), we hypothesize that the F87L mutation causes molecular changes that are linked to the length-dependent activation of cardiac myofilaments...
May 18, 2018: Journal of General Physiology
https://www.readbyqxmd.com/read/29776691/a-voice-patch-system-in-the-primate-brain-for-processing-vocal-information
#5
Pascal Belin, Clémentine Bodin, Virginia Aglieri
We review behavioural and neural evidence for the processing of information contained in conspecific vocalizations (CVs) in three primate species: humans, macaques and marmosets. We focus on abilities that are present and ecologically relevant in all three species: the detection and sensitivity to CVs; and the processing of identity cues in CVs. Current evidence, although fragmentary, supports the notion of a "voice patch system" in the primate brain analogous to the face patch system of visual cortex: a series of discrete, interconnected cortical areas supporting increasingly abstract representations of the vocal input...
May 7, 2018: Hearing Research
https://www.readbyqxmd.com/read/29776672/half-dose-photodynamic-therapy-versus-high-density-subthreshold-micropulse-laser-treatment-in-patients-with-chronic-central-serous-chorioretinopathy-the-place-trial
#6
Elon H C van Dijk, Sascha Fauser, Myrte B Breukink, Rocio Blanco-Garavito, Joannes M M Groenewoud, Jan E E Keunen, Petrus J H Peters, Greet Dijkman, Eric H Souied, Robert E MacLaren, Giuseppe Querques, Susan M Downes, Carel B Hoyng, Camiel J F Boon
PURPOSE: To compare the anatomic and functional efficacy and safety of half-dose photodynamic therapy (PDT) versus high-density subthreshold micropulse laser (HSML) treatment in patients with chronic central serous chorioretinopathy (cCSC). DESIGN: Open-label, multicenter, randomized controlled clinical trial. PARTICIPANTS: Patients with cCSC whose disease had to be confirmed by both clinical characteristics and findings on multimodal imaging...
May 15, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29775855/dual-core-all-fiber-integrated-immunosensor-for-detection-of-protein-antigens
#7
Karol Wysokiński, Dawid Budnicki, Janusz Fidelus, Łukasz Szostkiewicz, Łukasz Ostrowski, Micha Murawski, Marcin Staniszewski, Magdalena Staniszewska, Marek Napierała, Tomasz Nasiłowski
An optical fiber interferometric microprobe for detection of specific proteins is presented in this paper. The microprobe is an all-fiber device, which is based on Michelson interferometer configuration, which allows for detection of protein antigens in an analyzed solution thanks to antibodies immobilized on the sensor surface. The interferometer is made of dual core fiber and has a precisely formed arm length difference, achieved by splicing a fragment of polarization maintaining fiber to one of the cores...
May 9, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29775624/characterization-and-comparative-analysis-of-a-new-mouse-microglial-cell-model-for-studying-neuroinflammatory-mechanisms-during-neurotoxic-insults
#8
Souvarish Sarkar, Emir Malovic, Deeksha Sarda, Vivek Lawana, Dharmin Rokad, Huajun Jin, Vellareddy Anantharam, Arthi Kanthasamy, Anumantha G Kanthasamy
Microglia are the first responders of the central nervous system, acting as the key modulators of neuroinflammation observed during neurotoxic insults as well as in the pathophysiology of several neurodegenerative disorders including Alzheimer's (AD), Parkinson's (PD), and Huntington's diseases (HD). The number of publications on microglia has increased steadily throughout the past decade because of immense interests in the neuroinflammation that precedes the neurodegenerative process. To study microglial biology and its role in modulating neuroinflammation, immortalized microglial cell lines derived from mice, rats, and humans have been developed...
May 15, 2018: Neurotoxicology
https://www.readbyqxmd.com/read/29775619/proteomic-approach-to-profiling-immune-complex-antigens-in-cerebrospinal-fluid-samples-from-patients-with-central-nervous-system-autoimmune-diseases
#9
Nozomi Aibara, Kunihiro Ichinose, Miyako Baba, Hideki Nakajima, Katsuya Satoh, Ryuichiro Atarashi, Naoya Kishikawa, Noriyuki Nishida, Atsushi Kawakami, Naotaka Kuroda, Kaname Ohyama
BACKGROUND: Immune complexes (ICs) may clearly reflect immunological abnormalities caused by disease, especially for autoimmune diseases. Although ICs have been detected in cerebrospinal fluid (CSF) from patients with CNS autoimmune diseases, identities of antigens in such ICs have not been comprehensively determined. METHODS: We used immune complexome analysis, in which nano-liquid chromatography-tandem mass spectrometry is employed to comprehensively identify antigens incorporated into ICs in biological fluids, to characterize ICs in CSF samples from patients with CNS autoimmune diseases, and to find disease-specific IC antigen to a certain CNS autoimmune disease...
May 15, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29774400/cost-effectiveness-of-osteoporosis-screening-strategies-for-hip-fracture-prevention-in-older-chinese-people-a-decision-tree-modeling-study-in-the-mr-os-and-ms-os-cohort-in-hong-kong
#10
Y Su, F T T Lai, B H K Yip, J C S Leung, T C Y Kwok
Despite the high costs of hip fracture, many governments provide limited support for osteoporosis screening. We demonstrated that osteoporosis screening by dual-energy X-ray absorptiometry (DXA) with or without pre-screening by Fracture Risk Assessment Tool (FRAX) or calcaneal ultrasound are more cost-effective than no screening in Chinese people aged 65 or over in Hong Kong. INTRODUCTION: To examine the cost-effective potential osteoporosis screening strategies for hip fracture prevention in Hong Kong...
May 17, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29773835/levosimendan-in-patients-with-left-ventricular-dysfunction-undergoing-cardiac-surgery-a-meta-analysis-and-trial-sequential-analysis-of-randomized-trials
#11
Zhenhua Xing, Liang Tang, Pengfei Chen, Jiabing Huang, Xiaofan Peng, Xinqun Hu
Patients with left ventricular dysfunction (LVD) undergoing cardiac surgery have a high mortality rate. Levosimendan, a calcium sensitizer, improves myocardial contractility without increasing myocardial oxygen demand. It is not clear whether levosimendan can reduce mortality in cardiac surgery patients with LVD. The PubMed, Embase, and Cochrane Central databases were searched to identify randomized trials comparing levosimendan with conventional treatment in cardiac surgery patients with LVD. We derived pooled risk ratios (RRs) with random effects models...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29772344/the-expression-of-galanin-in-the-parafacial-respiratory-group-and-its-effects-on-respiration-in-neonatal-rats
#12
Tara G Bautista, Angelina Y Fong, Paul M Pilowsky, Keiko Ikeda, Kiyoshi Kawakami, Darko Spirovski, Hiroshi Onimaru
The inhibitory peptide galanin is expressed within the retrotrapezoidal nucleus (RTN) - a key central chemoreceptor site that also contains the active expiratory oscillator. It was previously reported that microinjection of galanin into pre-Bötzinger complex - containing the inspiratory oscillator - exerts inhibitory effects on inspiratory motor output and respiratory rhythm. In neonatal rats, the present study aimed to investigate: 1) expression of galanin within the parafacial respiratory group (pFRG), which overlaps anatomically and functionally with the adult RTN, and; 2) effects of galanin on respiratory rhythm using the in vitro brainstem-spinal cord preparation...
May 14, 2018: Neuroscience
https://www.readbyqxmd.com/read/29772245/ape1-ref-1-redox-function-contributes-to-inflammatory-pain-sensitization
#13
Amira Zaky, Rabia Bouali-Benazzouz, Alexandre Favereaux, Gianluca Tell, Marc Landry
Inflammatory pain is a complex and multifactorial disorder. Apurinic/apyrimidinic endonuclease 1 (APE1), also called Redox Factor-1 (Ref-1), is constitutively expressed in the central nervous system and regulates various cellular functions including oxidative stress. In the present study, we investigated APE1 modulation and associated pain behavior changes in the complete Freund's adjuvant (CFA) model of inflammatory pain in rats. In addition we tested the anti-inflammatory effects of E3330, a selective inhibitor of APE1-redox activity, in CFA pain condition...
May 14, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29772066/3d-specific-absorption-rate-estimation-from-high-intensity-focused-ultrasound-sonications-using-the-green-s-function-heat-kernel
#14
Nicholas J Freeman, Henrik Odéen, Dennis L Parker
PURPOSE: Evaluate a numerical inverse Green's function method of deriving specific absorption rates (SARs) from high intensity focused ultrasound (HIFU) sonications given tissue parameters (thermal conductivity, specific heat capacity, and mass density) and 3-D magnetic resonance imaging (MRI) temperature measurements. METHODS: SAR estimates were evaluated using simulations and MR temperature measurements from HIFU sonications. For simulations, a "true" SAR was calculated using the hybrid angular spectrum method for ultrasound simulations...
May 17, 2018: Medical Physics
https://www.readbyqxmd.com/read/29771804/preemptive-analgesia-decreases-pain-following-anorectal-surgery-a-prospective-randomized-double-blinded-placebo-controlled-trial
#15
Justin T Van Backer, Matthew R Jordan, Danielle T Leahy, Jesse S Moore, Peter Callas, Timothy Dominick, Peter A Cataldo
BACKGROUND: Postoperative pain is a frequent cause for delayed discharge following outpatient procedures, including anorectal surgery. Both central and peripheral pain receptor sensitization are thought to contribute to postoperative pain. Blocking these receptors and preempting sensitization prevents hyperalgesia leading to lower pain medication requirements. Studies in the orthopedic, urologic, and gynecologic literature support this practice, but the use of preemptive analgesia in anorectal surgery is understudied...
May 15, 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29771756/thyrotropin-receptor-antibodies-an-overview
#16
Anupam Kotwal, Marius Stan
PURPOSE: Thyroid autoimmunity affects approximately 5% of the population, and its investigation relies heavily on the use of autoantibodies. Thyroid stimulating hormone receptor (TSHR) autoantibodies (TRAb) play a central role in the evaluation of Graves disease (GD), Graves ophthalmopathy (GO) and pretibial myxedema (PTM). However, there is still controversy regarding overall TRAb assay diagnostic accuracy and their prognostic utility. METHODS: We reviewed and analyzed the literature reporting TRAb assays and their clinical utility...
May 2, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29771629/brain-uptake-of-multivalent-and-multi-specific-dvd-ig-proteins-after-systemic-administration
#17
Denise Karaoglu Hanzatian, Annette Schwartz, Farid Gizatullin, Jamie Erickson, Kangwen Deng, Ruth Villanueva, Christopher Stedman, Cristina Harris, Tariq Ghayur, Andrew Goodearl
Therapeutic monoclonal antibodies and endogenous IgG antibodies show limited uptake into the central nervous system (CNS) due to the blood-brain barrier (BBB), which regulates and controls the selective and specific transport of both exogenous and endogenous materials to the brain. The use of natural transport mechanisms, such as receptor-mediated transcytosis (RMT), to deliver antibody therapeutics into the brain have been studied in rodents and monkeys. Recent successful examples include monovalent bispecific antibodies and mono- or bivalent fusion proteins; however, these formats do not have the capability to bind to both the CNS target and the BBB transport receptor in a bivalent fashion as a canonical antibody would...
May 17, 2018: MAbs
https://www.readbyqxmd.com/read/29771466/arabidopsis-vq18-and-vq26-proteins-interact-with-abi5-transcription-factor-to-negatively-modulate-aba-response-during-seed-germination
#18
Jinjing Pan, Houping Wang, Yanru Hu, Diqiu Yu
Seed germination and early seedling establishment, critical developmental stages in the life cycle of seed plants, are modulated by diverse endogenous hormones and the surrounding environment. Arabidopsis ABSCISIC ACID-INSENSITIVE5 (ABI5) is a central transcription factor of abscisic acid (ABA) signaling that represses those processes. ABI5 is precisely modulated at post-translational level; however, whether it interacts with other crucial transcriptional regulators remains to be investigated. In this study, VQ18 and VQ26, two members of recently-identified VQ family, were found to interact with ABI5 in vitro and in vivo...
May 17, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29771140/the-informal-caregiver-s-lived-experience-of-being-present-with-a-patient-who-receives-a-diagnosis-of-dementia-a-phenomenological-inquiry
#19
Barbara E Champlin
This article describes the lived experience of informal caregivers who accompany loved ones as the loved ones receive a diagnosis of dementia. Each of 12 informal caregivers participated in a face-to-face interview that was audiotaped and transcribed. Analysis of the interview text revealed seven constituents as central to the general structure of this experience: (a) having anticipated the diagnosis; (b) feeling relief; (c) feeling the gravitas of the words; (d) grieving the loss; (e) watching for the patient's reaction; (f) accepting the diagnosis and taking action; and (g) committing to care...
January 1, 2018: Dementia
https://www.readbyqxmd.com/read/29771099/-screening-for-undernutrition-among-older-adults-receiving-home-care-an-estimation-of-the-diagnostic-accuracy-of-indicators-available-in-the-resident-assessment-instrument-home-care-adapted-for-switzerland
#20
Catherine Busnel, Catherine Ludwig
INTRODUCTION: in homecare practice, nurses are central actors for the screening of individuals at risks of undernutrition. CONTEXT: in Switzerland, homecare nurses estimate the nutritional status of care recipients by means of a standardized geriatric assessment done with the RAI-HC. AIMS: The aim of the study is to estimate the diagnostic accuracy of the « nutritional status » score, the body mass index and the weight loss documented from the RAI-HC...
March 2018: Recherche en Soins Infirmiers
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