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https://www.readbyqxmd.com/read/28441008/simultaneous-detection-of-dual-prostate-specific-antigens-using-surface-enhanced-raman-scattering-based-immunoassay-for-accurate-diagnosis-of-prostate-cancer
#1
Ziyi Cheng, Namhyun Choi, Rui Wang, Sangyeop Lee, Kyung Chul Moon, Soo-Young Yoon, Lingxin Chen, Jaebum Choo
Accurate analysis of specific biomarkers in clinical serum is essential for early diagnosis and treatment of cancer. Here, a surface-enhanced Raman scattering (SERS)-based immunoassay, using magnetic beads and SERS nano tags, was developed for the determination of free to total (f/t) prostate specific antigen (PSA) ratio to improve the diagnostic performance of prostate cancer. To assess the clinical applicability of the proposed method, SERS-based assays for the simultaneous detection of dual PSA markers, free PSA (f-PSA) and complexed PSA (c-PSA), were performed for clinical samples in the gray zone between 4...
April 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28432023/pulmonary-embolism-related-sudden-cardiac-arrest-admitted-alive-at-hospital-management-and-outcomes
#2
Wulfran Bougouin, Eloi Marijon, Benjamin Planquette, Nicole Karam, Florence Dumas, David S Celermajer, Daniel Jost, Lionel Lamhaut, Frankie Beganton, Alain Cariou, Guy Meyer, Xavier Jouven
AIM: Pulmonary Embolism (PE) is a relatively common cardiovascular condition, occasionally and tragically manifesting as Sudden Cardiac Arrest (SCA). The natural history of SCA complicating PE has been poorly evaluated.In this study, we described the management and outcome of PE-related SCA. METHODS: In this prospective population--based study, we included all patients admitted at hospital alive after out- of- hospital SCA, in Paris and suburbs, France (6.6 million inhabits), from May 2011 to September 2015...
April 18, 2017: Resuscitation
https://www.readbyqxmd.com/read/28431191/timing-for-the-introduction-of-cycled-light-for-extremely-preterm-infants-a-randomized-controlled-trial
#3
Debra H Brandon, Susan G Silva, Jinhee Park, William Malcolm, Heba Kamhawy, Diane Holditch-Davis
Day-night cycled light improves health outcomes in preterm infants, yet the best time to institute cycled light is unclear. The hypothesis of this study was that extremely preterm infants receiving early cycled light would have better health and developmental outcomes than infants receiving late cycled light. Infants born at ≤28 weeks gestation were randomly assigned to early cycled light (ECL) starting at 28 weeks postmenstrual age [PMA] or late cycled light (LCL), starting at 36 weeks PMA. Daylight was 200-600 lux and night was 5-30 lux...
April 21, 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/28430778/a-no-film-slot-blot-for-the-detection-of-developing-p-falciparum-oocysts-in-mosquitoes
#4
Bryan Grabias, Nitin Verma, Hong Zheng, Abhai K Tripathi, Godfree Mlambo, Merribeth J Morin, Emily Locke, Sanjai Kumar
Non-microscopy-based assays for sensitive and rapid detection of Plasmodium infection in mosquitoes are needed to allow rapid and high throughput measurement of transmission intensity and malaria control program effectiveness. Here, we report on a modified enhanced chemiluminescence-based slot blot assay for detection of Plasmodium falciparum (Pf) circumsporozite protein (PfCSP) expressed on parasite oocysts developing inside the mosquito midgut. This modified assay has several novel features that include eliminating the need for exposure to autoradiography (AR) film, as well as utilizing a novel high affinity anti-CSP antibody, and optimizing assay procedures resulting in significant reduction in the time required to perform the assay...
2017: PloS One
https://www.readbyqxmd.com/read/28417934/expression-of-adenosine-a2b-receptor-and-adenosine-deaminase-in-rabbit-gastric-mucosa-ecl-cells
#5
Rosa María Arin, Ana Isabel Vallejo, Yuri Rueda, Olatz Fresnedo, Begoña Ochoa
Adenosine is readily available to the glandular epithelium of the stomach. Formed continuously in intracellular and extracellular locations, it is notably produced from ATP released in enteric cotransmission. Adenosine analogs modulate chloride secretion in gastric glands and activate acid secretion in isolated parietal cells through A2B adenosine receptor (A2BR) binding. A functional link between surface A2BR and adenosine deaminase (ADA) was found in parietal cells, but whether this connection is a general feature of gastric mucosa cells is unknown...
April 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28417337/descemet-stripping-automated-endothelial-keratoplasty-versus-descemet-membrane-endothelial-keratoplasty-a-meta-analysis
#6
REVIEW
Leru Zhu, Yi Zha, Jianqiu Cai, Yanling Zhang
PURPOSE: To evaluate the efficacy and safety of descemet stripping automated endothelial keratoplasty (DSAEK) compared with descemet membrane endothelial keratoplasty (DMEK). METHODS: Databases including PubMed, EMBASE, and Cochrane Library were searched to find studies that compared DSAEK and DMEK outcomes. Efficacy parameters were the postoperative best-corrected visual acuity (BCVA) and spherical equivalent (SE). Safety parameters were postoperative endothelial cell loss (ECL), air injection (rebubbling), graft failure, graft rejection, and high intraocular pressure (IOP)...
April 17, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28415478/comparison-of-unusual-carbon-based-working-electrodes-for-electrochemiluminescence-sensors
#7
Muhammad Noman, Alessandro Sanginario, Pravin Jagadale, Danilo Demarchi, Alberto Tagliaferro
In this work, unconventional carbon-based materials were investigated for use in electrochemiluminescence (ECL) working electrodes. Precursors such as bamboo, pistachio shells, kevlar(®) fibers and camphor were differently treated and used as working electrodes in ECL experiments. After a proper process they were assembled as electrodes and tested in an electrochemical cell. Comparison among them and with a commercial glassy carbon electrode (GCE) shows a very good response for all of them thus demonstrating their potential use as disposable low-cost electrodes for early detection electrochemical analysis...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28412657/potential-resolved-in-electrode-type-electrochemiluminescence-immunoassay-based-on-functionalized-g-c3n4-nanosheet-and-ru-nh2-for-simultaneous-determination-of-dual-targets
#8
Zhiyong Guo, Lin Wu, Yufang Hu, Sui Wang, Xing Li
Here, a novel potential-resolved "in-electrode" type electrochemiluminescence (ECL) immunosensor was fabricated based on two different types of luminant Ru-NH2 and AuNPs/g-C3N4 to realize simultaneous detection of dual targets. In this strategy, anti-CA1251 and anti-SCCA1 were immobilized on bare gold electrode as capture probes, which could catch the two corresponding target CA125 and SCCA, and the immobilization of the signal tags was allowed via the interaction between antigen and antibody. In this process, (Ru&anti-CA1252)@GO and anti-SCCA2-AuNPs/g-C3N4 could exhibit two strong and stable ECL emissions at 1...
March 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28400684/early-prediction-of-3-month-survival-of-patients-in-refractory-cardiogenic-shock-and-cardiac-arrest-on-extracorporeal-life-support
#9
Clément Delmas, Jean-Marie Conil, Simon Sztajnic, Bernard Georges, Caroline Biendel, Camille Dambrin, Michel Galinier, Vincent Minville, Olivier Fourcade, Stein Silva, Bertrand Marcheix
BACKGROUND: Extracorporeal life support (ECLS) holds the promise of significant improvement of the survival of patient in refractory cardiogenic shock (CS) or cardiac arrest (CA). Nevertheless, it remains to be shown to which extent these highly invasive supportive techniques could improve long-term patient's outcome. METHODS: The outcomes of 82 adult ECLS patients at our institution between January 2012 and December 2013 were retrospectively analyzed. RESULTS: Patients were essentially men (64...
March 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28398723/valence-states-effect-on-electrogenerated-chemiluminescence-of-gold-nanocluster
#10
Huaping Peng, Meili Jian, Haohua Deng, Wenjun Wang, Zhongnan Huang, Kaiyuan Huang, Ailin Liu, Wei Chen
This work elucidated the valence states effect on the electrogenerated chemiluminescence (ECL) performance of gold nanocluster (AuNC). The N-acetyl-l-cysteine-AuNCs (NAC-AuNCs) and the electrochemical reduction method for reducing the AuNCs were first employed to this study. Results demonstrate that the electrochemical reduction degree of the AuNCs depended on the reduction potential, and the enhancement of the ECL signals was positively correlated with the reduction degree of AuNCs, which indicated that the valence state of Au plays a vital role in the ECL performance of AuNCs...
April 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28398409/-macrocytosis-of-red-blood-cells-and-early-arthritis-positive-for-rheumatoid-factor-such-as-initial-manifestations-of-a-neuroendocrine-gastrin-secreting-gastric-tumor
#11
Ciro Manzo, Maria Natale, Gennaro Mossetti, Aniello Piscopo
Neuroendocrine tumors (NETs) represent uncommon tumors arising from the excessive proliferation of enterochromaffin-like (ECL) cells (so-called Kulchitsky cell). Gastric NETs (GNET) represent less than 2% of all NETs and less than 1% of all stomach neoplasms. In particular, gastric NETs type 1 (associated to chronic atrophic gastritis and hypergastrinaemia) is the more frequent one, accounting for 70-80% of all GNET. A macrocytic anemia is a frequent manifestation of GNET type 1. The possibility that macrocytic anemia appear during therapy with methotrexate (MTX) is widely documented...
March 2017: Recenti Progressi in Medicina
https://www.readbyqxmd.com/read/28397410/building-a-better-neonatal-extracorporeal-life-support-circuit-comparison-of-hemodynamic-performance-and-gaseous-microemboli-handling-in-different-pump-and-oxygenator-technologies
#12
Kristen Glass, Payal Trivedi, Shigang Wang, Karl Woitas, Allen R Kunselman, Akif Ündar
Neurologic complications during neonatal extracorporeal life support (ECLS) are associated with significant morbidity and mortality. Gaseous microemboli (GME) in the ECLS circuit may be a possible cause. Advances in neonatal circuitry may improve hemodynamic performance and GME handling leading to reduction in patient complications. This study compared hemodynamic performance and GME handling using two centrifugal pumps (Maquet RotaFlow and Medos Deltastream DP3) and polymethylpentene oxygenators (Maquet Quadrox-iD and Medos Hilite 800LT) in a neonatal ECLS circuit model...
April 2017: Artificial Organs
https://www.readbyqxmd.com/read/28391831/pamam-dendrimers-a-multifunctional-nanomaterial-for-ecl-biosensors
#13
Sudeshna Chandra, Michael Mayer, Antje J Baeumner
Polyamido amine (PAMAM) dendrimers have been shown to function as electrochemiluminescence (ECL) co-reactant and have the inherent capability of improving immobilization of molecules on surfaces due to their dendritic structure. Here, we investigated the combination of both of these properties as the basis for biosensor development. Dendrimers with 5, 8, 10 and 16 terminal amine groups, respectively, were used. These were covalently coupled to biotin as model recognition site, and tagged with Ru(bpy)3(2+) via adsorption...
June 1, 2017: Talanta
https://www.readbyqxmd.com/read/28389174/a-biotin-drug-extraction-and-acid-dissociation-bead-procedure-to-eliminate-matrix-and-drug-interference-in-a-protein-complex-anti-drug-antibody-ada-isotype-specific-assay
#14
Hongmei Niu, Thomas Klem, Jinsong Yang, Yongchang Qiu, Luying Pan
Monitoring anti-drug antibody (ADA) responses in patients receiving protein therapeutics treatment is an important safety assessment for regulatory agencies, drug manufacturers, clinicians and patients. Recombinant human IGF-1/IGFBP-3 (rhIGF-1/rhIGFBP-3) is a 1:1 formulation of naturally occurring protein complex. The individual IGF-1 and IGFBP-3 proteins have multiple binding partners in serum matrix with high binding affinity to each other, which presents challenges in ADA assay development. We have developed a biotin-drug extraction with acid dissociation (BEAD) procedure followed by an electrochemiluminescence (ECL) direct assay to overcome matrix and drug interference...
April 4, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28378893/characterization-of-a-novel-allergenic-protein-from-the-octocoral-scleronephthya-gracillima-kuekenthal-that-corresponds-to-a-new-gfp-like-family-named-akane
#15
Yuko Kato, Mitsuru Jimbo, Youichi Sakakibara, Reiko Onizuka, Tatsuya Takahashi, Sachiko Matsuhashi, Hajime Mita, Kei Amada, Yukimitsu Imahara, Kimiko Tanabe, Akihisa Toda, Hisao Kamiya
Certain marine organisms have been known to cause allergic reactions among occupational fishermen. We have previously reported that bronchial asthma among the workers engaged in spiny lobster fishing in Japan was caused by octocorals such as Dendronephthya sp. and Scleronephthya gracillima (previously named Alcyonium gracillimum). Now we have found another octocoral, Scleronephthya gracillima (Kuekenthal), which causes the allergic disease in fishermen. The octocoral was characterized as a new green fluorescent protein (GFP)-like family...
April 5, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28377296/mechanical-chest-compressions-improve-rate-of-return-of-spontaneous-circulation-and-allow-for-initiation-of-percutaneous-circulatory-support-during-cardiac-arrest-in-the-cardiac-catheterization-laboratory
#16
Joseph M Venturini, Elizabeth Retzer, J Raider Estrada, Janet Friant, David Beiser, Dana Edelson, Jonathan Paul, John Blair, Sandeep Nathan, Atman P Shah
BACKGROUND: Performing advanced cardiac life support (ACLS) in the cardiac catheterization laboratory (CCL) is challenging. Mechanical chest compression (MCC) devices deliver compressions in a small space, allowing for simultaneous percutaneous coronary intervention and reduced radiation exposure to rescuers. In refractory cases, MCC devices allow rescuers to initiate percutaneous mechanical circulatory support (MCS) and extracorporeal life support (ECLS) during resuscitation. This study sought to assess the efficacy and safety of MCC when compared to manual compressions in the CCL...
April 2, 2017: Resuscitation
https://www.readbyqxmd.com/read/28365109/pushing-the-boundaries-of-ecls-outcomes-in-34-week-ega-neonates
#17
Joseph T Church, Anne C Kim, Kimberly M Erickson, Ankur Rana, Robert Drongowski, Ronald B Hirschl, Robert H Bartlett, George B Mychaliska
PURPOSE: Extracorporeal life support (ECLS) is usually reserved for infants ≥34weeks estimated gestational age (EGA) owing to concerns about increased mortality and incidence of intracranial hemorrhage (ICH). We sought to characterize survival, rates of ICH, and complications in <34week EGA neonates placed on ECLS. METHODS: 752 neonates of EGA 29-34weeks were identified in the Extracorporeal Life Support Organization (ELSO) Registry (1976-2008). Data analyzed included birthweight, survival, pre-ECLS conditions, ventilatory parameters and complications (including ICH and other neurological outcomes)...
March 27, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28364703/a-sensitive-immunosensor-via-in-situ-enzymatically-generating-efficient-quencher-for-electrochemiluminescence-of-iridium-complexes-doped-sio2-nanoparticles
#18
Wenbin Liang, Ying Zhuo, Chengyi Xiong, Yingning Zheng, Yaqin Chai, Ruo Yuan
A sensitive electrochemiluminescent (ECL) sandwich immunosensor was proposed herein based on the tris (2-phenylpyridine) iridium [Ir(ppy)3] doped silica nanoparticles (SiO2@Ir) with improved ECL emission as signal probes and glucose oxidase (GOD)-based in situ enzymatic reaction to generate H2O2 for efficiently quenching the ECL emission of SiO2@Ir. Typically, the SiO2@Ir not only increased the loading amount of Ir(ppy)3 as ECL indicators with high ECL emission, but also improved their water-solubility, which efficiently enhanced the ECL emission...
March 27, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28362356/severe-pneumonia-caused-by-influenza-a-h1n1-virus-successfully-managed-with-extracorporeal-life-support-in-a-comorbid-former-preterm-infant
#19
Genny Raffaeli, Giacomo Cavallaro, Lorenza Pugni, Ernesto Leva, Andrea Artoni, Simona Neri, Chiara Baracetti, Mauro Cotza, Valerio Gentilino, Leonardo Terranova, Susanna Esposito, Fabio Mosca
Influenza A (H1N1) virus infection is a global health burden, leading to significant pediatric morbidity and mortality. Prematurity, young age and comorbidities are important risk factors for unfavorable outcomes. Preventive strategies, such as healthcare workers and household contacts vaccination as well as the implementation of infection control practices during the epidemic season, are crucial to protect the most vulnerable populations. Early diagnosis, timely administration of antiviral drugs and supportive therapy are crucial to lead to a complete recovery...
March 31, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28358849/extracorporeal-life-support-prior-to-left-ventricular-assist-device-implantation-leads-to-improvement-of-the-patients-intermacs-levels-and-outcome
#20
David Schibilsky, Christoph Haller, Bruno Lange, Barbara Schibilsky, Helene Haeberle, Peter Seizer, Meinrad Gawaz, Peter Rosenberger, Tobias Walker, Christian Schlensak
BACKGROUND: The objective of this study was to evaluate the outcome of left ventricular assist device (LVAD) implantation after initial extracorporeal life support (ECLS) in patients with cardiogenic shock and the incidence of post implantation right ventricular failure. METHODS & RESULTS: All patients on ECLS therapy for cardiogenic shock prior to LVAD implantation (n = 15) between October 2011 and January 2014 were analyzed. Baseline patient characteristics, as well as detailed pre-operative treatment and postoperative outcome data were collected retrospectively...
2017: PloS One
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