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https://www.readbyqxmd.com/read/28647912/chemiluminescent-immunoassay-technology-what-does-it-change-in-autoantibody-detection
#1
Luigi Cinquanta, Desré Ethel Fontana, Nicola Bizzaro
Diagnostic technology is rapidly evolving, and over the last decade, substantial progress has been made even for the identification of antibodies, increasingly approaching this type of diagnostic to that of automated clinical chemistry laboratory. In this review, we describe the analytical and diagnostic characteristics of chemiluminescence technology in its strength and in its applicability for a more rapid and accurate diagnosis of autoimmune diseases. The wide dynamic range, greater than that of immunoenzymatic methods, the high sensitivity and specificity of the results expressed in quantitative form, the high degree of automation and the clinical implications related to the reduction in the turnaround time, and the ability to run a large number of antibody tests (even of different isotypes), directed towards large antigenic panels in random access mode, make this technology the most advanced in the clinical laboratory, with enormous repercussions on the workflow and on the autoimmunology laboratory organisation...
December 2017: Auto- Immunity Highlights
https://www.readbyqxmd.com/read/28647659/flow-diverters-as-a-useful-adjunct-to-traditional-endovascular-techniques-in-the-treatment-of-direct-carotid-cavernous-fistulas
#2
Christopher S Ogilvy, Rouzbeh Motiei-Langroudi, Mohammad Ghorbani, Christoph J Griessenauer, Abdulrahman Y Alturki, Ajith J Thomas
BACKGROUND: Direct carotid-cavernous sinus fistulas (CCF) are high flow arteriovenous shunts that are typically the result of a severe head injury. The endovascular treatment of these lesions includes the use of detachable balloons, coils, liquid embolic agents, and covered stents. To minimize the chance of treatment failure and subsequent complications, endoluminal reconstruction using a flow-diverting stent may be added to the treatment construct . METHODS: We present 3 cases and review the existing literature...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28647641/impact-of-left-subclavian-artery-revascularization-prior-to-thoracic-endovascular-aortic-repair-on-post-operative-cerebrovascular-hemodynamics
#3
Arnoud V Kamman, Jonathan L Eliason, David M Williams, Bo Yang, Frans L Moll, Santi Trimarchi, Kim A Eagle, Himanshu J Patel
OBJECTIVES: The impact of left subclavian artery (LSA) revascularization prior to thoracic endovascular aortic repair (TEVAR) on cerebrovascular flow is not well described. We studied bilateral vertebral and carotid artery flow characteristics before and after TEVAR, to evaluate the hemodynamic effects of LSA revascularization. METHODS: Seventy-four patients with mixed etiologies (mean age 70.9±10.5 years) underwent LSA revascularization and TEVAR (2006-2016) and had available pre- and post-operative carotid Duplex study available...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647639/flow-reduction-aided-thrombin-injection-for-complex-femoral-pseudoaneurysms-case-series-and-review-of-the-literature
#4
Nandakumar Menon, Charles B Drucker, Abhishek Bhardwaj, Richa Kalsi, Robert S Crawford, Rajabrata Sarkar, Shahab Toursavadkohi
We describe a series of 4 patients with complex femoral pseudoaneuryms including short, wide necks that were successfully managed with a combination of proximal endovascular balloon occlusion and percutaneous thrombin injection. Contralateral femoral access was used to place an occlusion balloon proximal to or across the lesion and thrombin was injected directly into the pseudoaneurysm under ultrasound guidance. All patients recovered from their procedures without incident and are free from recurrence at follow-up...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647260/numerical-simulation-of-flow-hydrodynamics-of-struvite-pellets-in-a-liquid-solid-fluidized-bed
#5
Xin Ye, Dongyuan Chu, Yaoyin Lou, Zhi-Long Ye, Ming Kuang Wang, Shaohua Chen
Phosphorus recovery in the form of struvite has been aroused in recent decades for its dual advantages in eutrophication control and resource protection. The usage of the struvite products is normally determined by the size which is largely depended on the hydrodynamics. In this study, flow behavior of struvite pellets was simulated by means of Eulerian-Eulerian two-fluid model combining with kinetic theory of granular flow in a liquid-solid fluidized bed reactor (FBR). A parametric study including the mesh size, time step, discretization strategy, turbulent model and drag model was first developed, followed by the evaluations of crucial operational conditions, particle characteristics and reactor shapes...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28646906/modulation-of-oxidative-phosphorylation-and-redox-homeostasis-in-mitochondrial-ndufs4-deficiency-via-mesenchymal-stem-cells
#6
Marlen Melcher, Katharina Danhauser, Annette Seibt, Özer Degistirici, Fabian Baertling, Arun Kumar Kondadi, Andreas S Reichert, Werner J H Koopman, Peter H G M Willems, Richard J Rodenburg, Ertan Mayatepek, Roland Meisel, Felix Distelmaier
BACKGROUND: Disorders of the oxidative phosphorylation (OXPHOS) system represent a large group among the inborn errors of metabolism. The most frequently observed biochemical defect is isolated deficiency of mitochondrial complex I (CI). No effective treatment strategies for CI deficiency are so far available. The purpose of this study was to investigate whether and how mesenchymal stem cells (MSCs) are able to modulate metabolic function in fibroblast cell models of CI deficiency. METHODS: We used human and murine fibroblasts with a defect in the nuclear DNA encoded NDUFS4 subunit of CI...
June 24, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28646776/characterizing-the-pahs-in-surface-waters-and-snow-in-the-athabasca-region-implications-for-identifying-hydrological-pathways-of-atmospheric-deposition
#7
S J Birks, S Cho, E Taylor, Y Yi, J J Gibson
The composition of polycyclic aromatic hydrocarbons present in snow and surface waters in the Athabasca Oil Sands Region (AOSR) was characterized in order to identify major contributors to the organics detected in rivers and lakes in the region. PAH concentrations, measured by three monitoring programs in 2011, were used to compare the PAH compositions of snow and surface waters across the AOSR. The 2011 dataset includes total (dissolved+particulate) concentrations of thirty-four parent and alkylated PAH compounds in 105 snow, 272 river, and 3 lake samples...
June 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28646721/biochemical-immunological-hybrid-biosensor-based-on-two-dimensional-chromatography-for-on-site-sepsis-diagnosis
#8
Seung-Wan Kim, Il-Hoon Cho, Guei-Sam Lim, Gi-Na Park, Se-Hwan Paek
A hybrid-biosensor system that can simultaneously fulfill the immunoassay for protein markers (e.g., C-reactive protein (CRP) and procalcitonin (PCT)) and the enzyme assay for metabolic substances (e.g., lactate) in the same sepsis-based sample has been devised. Such a challenge was pursued through the installation of an enzyme-reaction zone on the signal pad of the typical immuno-strip for the rapid two-dimensional (2-D)-chromatography test. To minimize the mutual interference in the hybrid assays, a pre-determined membrane site was etched in a pattern and mounted with a biochemical-reaction pad, thereby allowing a loaded sample to enter and then stay in the pad for a colored-signal production over the course of an immunoassay...
June 16, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28646647/successful-maintenance-of-key-physiological-parameters-in-preterm-lambs-treated-with-ex%C3%A2-vivo-uterine-environment-therapy-for-a-period-of-1-week
#9
Haruo Usuda, Shimpei Watanabe, Yuichiro Miura, Masatoshi Saito, Gabrielle C Musk, Judith Rittenschober-Böhm, Hideyuki Ikeda, Shinichi Sato, Takushi Hanita, Tadashi Matsuda, Alan H Jobe, John P Newnham, Sarah J Stock, Matthew W Kemp
BACKGROUND: Extremely preterm infants born at the border of viability (22-24 weeks' gestation) have high rates of death and lasting disability. Ex vivo uterine environment therapy is an experimental neonatal intensive care strategy that provides gas exchange using parallel membranous oxygenators connected to the umbilical vessels, sparing the extremely preterm cardiopulmonary system from ventilation-derived injury. OBJECTIVE: In this study, we aimed to refine our ex vivo uterine environment therapy platform to eliminate fetal infection and inflammation, while simultaneously extending the duration of hemodynamically stable ex vivo uterine environment therapy to 1 week...
June 20, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28646179/herbal-medicine-yinchenhaotang-protects-against-%C3%AE-naphthylisothiocyanate-induced-cholestasis-in-rats
#10
Jingyu Yan, Guoxiang Xie, Chungeng Liang, Yiyang Hu, Aihua Zhao, Fengjie Huang, Ping Hu, Ping Liu, Wei Jia, Xiaoning Wang
Cholestasis is a clinical disorder defined as an impairment of bile flow, and that leads to toxic bile acid (BA) accumulation in hepatocytes. Here, we investigated the hepatoprotective effect of Yinchenhaotang (YCHT), a well-known formulae for the treatment of jaundice and liver disorders, against the cholestasis using the α-naphthylisothiocyanate (ANIT)-induced cholestasis in male Wistar rats. ANIT feeding induced significant cholestasis with substantially increased intrahepatic retention of hydrophobic BAs...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646097/highly-suggestive-preliminary-evidence-that-the-renal-interstitium-contracts-in%C3%A2-vivo
#11
Omar Flores-Sandoval, María Eugenia Sánchez-Briones, Juan F López-Rodríguez, Miriam Z Calvo-Turrubiartes, Lilia Llamazares-Azuara, Manuel Rodríguez-Martínez
To learn more about controlling renal interstitial hydrostatic pressure (RIHP), we assessed its response to renal medullary direct interstitial volume expansion (rmDIVE = 100 μL bolus infusion/30 sec). Three experimental series (S) were performed in hydropenic, anesthetized, right-nephrectomized, acute left renal-denervated and renal perfusion pressure-controlled rats randomly assigned to groups in each S. S1: Rats without hormonal clamp were contrasted before and after rmDIVE induced via 0.9% saline solution bolus (SS group) or 2% albumin in SS bolus (2% ALB + SS group)...
June 2017: Physiological Reports
https://www.readbyqxmd.com/read/28645870/impact-on-environment-ecosystem-diversity-and-health-from-culturing-and-using-gmos-as-feed-and-food
#12
REVIEW
Aristidis M Tsatsakis, Muhammad Amjad Nawaz, Victor A Tutelyan, Kirill S Golokhvast, Olga-Ioanna Kalantzi, Duck Hwa Chung, Sung Jo Kang, Michael D Coleman, Nadia Tyshko, Seung Hwan Yang, Gyuhwa Chung
Modern agriculture provides the potential for sustainable feeding of the world's increasing population. Up to the present moment, genetically modified (GM) products have enabled increased yields and reduced pesticide usage. Nevertheless, GM products are controversial amongst policy makers, scientists and the consumers, regarding their possible environmental, ecological, and health risks. Scientific-and-political debates can even influence legislation and prospective risk assessment procedure. Currently, the scientifically-assessed direct hazardous impacts of GM food and feed on fauna and flora are conflicting; indeed, a review of literature available data provides some evidence of GM environmental and health risks...
June 20, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28645734/the-influence-of-temperature-treatment-before-cryopreservation-on-the-viability-and-potency-of-cryopreserved-and-thawed-cd34-and-cd45-cord-blood-cells
#13
Svenja Schwandt, Stefanie Liedtke, Gesine Kogler
BACKGROUND: Hematopoietic stem cell (HSC) viability and potency is crucial for qualified cord blood (CB) transplants. This study analyzes time and temperature condition before cryopreservation for the viability of CD34(+)/CD45(+) cells after cryopreservation. METHODS: Cell viabilities were determined by antibody co-staining with 7-aminoactinomycin D detecting necrotic cells, and subsequent flow cytometric analysis. Additionally, Annexin V staining for determination of apoptotic cells and colony-forming unit (CFU) assays for testing functional potency of HSCs were performed...
June 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28645309/herpes-simplex-virus-1-infects-the-olfactory-bulb-shortly-following-ocular-infection-and-exhibits-a-long-term-inflammatory-profile-in-the-form-of-effector-and-hsv-1-specific-t-cells
#14
Chandra M Menendez, Daniel J J Carr
BACKGROUND: Herpes simplex virus 1 (HSV-1) infection can result in a life-threatening condition known as herpes simplex encephalitis (HSE). Trafficking patterns by which the virus reaches the central nervous system (CNS) following ocular infection are unresolved. We evaluated early viral dissemination pathways following ocular infection that involve trafficking to the olfactory bulb (OB). Additionally, we have characterized the capacity of HSV-1 to establish latency within OB tissue and profiled the local T lymphocyte response over the course of the acute infection into latency...
June 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28645275/rapid-monocyte-infiltration-following-retinal-detachment-is-dependent-on-non-canonical-il6-signaling-through-gp130
#15
Xinlei Wang, Eric B Miller, Mayank Goswami, Pengfei Zhang, Kaitryn E Ronning, Sarah J Karlen, Robert J Zawadzki, Edward N Pugh, Marie E Burns
BACKGROUND: Retinal detachment (RD) can lead to proliferative vitreoretinopathy (PVR), a leading cause of intractable vision loss. PVR is associated with a cytokine storm involving common proinflammatory molecules like IL6, but little is known about the source and downstream signaling of IL6 and the consequences for the retina. Here, we investigated the early immune response and resultant cytokine signaling following RD in mice. METHODS: RD was induced in C57BL/6 J and IL6 knockout mice, and the resulting inflammatory response was examined using immunohistochemistry and flow cytometry...
June 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28644564/methacrylate-based-root-canal-sealer-containing-chlorexidine-and-%C3%AE-tricalcium-phosphate
#16
Fabrício Mezzomo Collares, Vicente Castelo Branco Leitune, Fernando Freitas Portella, Paula Dapper Santos, Gabriela de Souza Balbinot, Luís Alberto Dos Santos, Clarissa Cavalcanti Fatturi Parolo, Susana Maria Werner Samuel
The aim of this study was to develop and to characterize a methacrylate-based root canal sealer containing chlorhexidine (CHX) and α-tricalcium phosphate (α-TCP). Experimental dual cure methacrylate-based sealer was produced containing 0, 2.5, or 5 wt% of CHX and 0, 25, or 50 wt% of α-TCP. Experimental sealers were evaluated based on flow, film thickness, radiopacity, degree of conversion (DC), degradation in water, pH and antibacterial activity. Flow ranged from 15.09 ± 0.11 to 17.47 ± 0.42 mm...
June 23, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28643891/direct-comparison-of-high-temporal-resolution-cine-mri-with-doppler-ultrasound-for-assessment-of-diastolic-dysfunction-in-mice
#17
Thomas A Roberts, Anthony N Price, Laurence H Jackson, Valerie Taylor, Anna L David, Mark F Lythgoe, Daniel J Stuckey
Diastolic dysfunction is a sensitive early indicator of heart failure and can provide additional data to conventional measures of systolic function. Transmitral Doppler ultrasound, which measures the one-dimensional flow of blood through the mitral valve, is currently the preferred method for the measurement of diastolic function, but the measurement of the left ventricular volume changes using high-temporal-resolution cinematic magnetic resonance imaging (CINE MRI) is an alternative approach which is emerging as a potentially more robust and user-independent technique...
June 23, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28643869/mechanotransduction-properties-of-the-cytoplasmic-tail-of-pecam-1
#18
Jessica L Snyder, Elena McBeath, Tamlyn N Thomas, Yi Jen Chiu, Robert L Clark, Keigi Fujiwara
BACKGROUND: Vascular endothelial cells (ECs) are a well-known cell system used in the study of mechanobiology. Using cultured ECs, we found that platelet endothelial cell adhesion molecule 1 (PECAM-1, CD31), a cell adhesion protein localized to regions of EC-EC contact, was rapidly tyrosine phosphorylated in ECs exposed to shear or cyclic stretch. Src-homology 2 domain-containing protein tyrosine phosphatase 2 (SHP2) binds phosphorylated PECAM-1 and activates the extracellular signal-regulated kinase1/2 (ERK1/2) signaling cascade, a known flow-activated signaling pathway...
June 23, 2017: Biology of the Cell
https://www.readbyqxmd.com/read/28643451/polyclonal-and-monoclonal-b-lymphocytes-response-in-hcv-patients-treated-with-direct-acting-antiviral-agents
#19
Alvise Schiavinato, Alberto Zanetto, Giorgia Pantano, Francesca Tosato, Mitja Nabergoj, Paola Fogar, Elisa Piva, Martina Gambato, Enrica Franceschet, Annarosa Floreani, Fabio Farinati, Patrizia Burra, Francesco Paolo Russo, Mario Plebani
Hepatitis C Virus (HCV) chronic infection can be associated with extrahepatic manifestations such as mixed cryoglobulinemia and lymphoproliferative disorders that are endowed with increased rates of morbidity and all-cause mortality. In this study we used flow cytometry to evaluate the effect of Interferon-free antiviral treatment on peripheral blood lymphocytes in HCV patients with or without associated lymphoproliferative disorders. Flow cytometry analysis of peripheral blood lymphocytes were performed at baseline and at the end of treatment...
June 22, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28642572/disrupted-pursuit-compensation-during-self-motion-perception-in-early-alzheimer-s-disease
#20
Jingru Wang, Xiaojun Guo, Xianbo Zhuang, Tuanzhi Chen, Wei Yan
Our perception of the world is remarkably stable despite of distorted retinal input due to frequent eye movements. It is considered that the brain uses corollary discharge, efference copies of signals sent from motor to visual regions, to compensate for distortions and stabilize visual perception. In this study, we tested whether patients with Alzheimer's disease (AD) have impaired corollary discharge functions as evidenced by reduced compensation during the perception of optic flow that mimics self-motion in the environment...
June 22, 2017: Scientific Reports
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