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https://www.readbyqxmd.com/read/28222016/a-review-of-the-challenge-in-measuring-and-standardizing-bcr-abl1
#1
Shuping Yu, Ming Cui, Xiao He, Rongrong Jing, Huimin Wang
Breakpoint cluster region-Abelson (BCR-ABL1) translocation is the characteristic sign of chronic myeloid leukemia (CML). The quantitation of BCR-ABL1 messenger RNA is requisite for patients with CML, and reverse-transcription real-time quantitative polymerase chain reaction (RQ-PCR) is the method used most extensively in testing laboratories worldwide. Nevertheless, substantial variation in RQ-PCR results from different laboratories makes interlaboratory comparability inconvincible owing to the lack of standardization...
February 21, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28219247/addressing-analytical-challenges-of-the-environmental-monitoring-for-the-water-framework-directive-erm-ce100-a-new-biota-certified-reference-material
#2
Ioannis Dosis, Marina Ricci, Laszlo Majoros, Roberto Lava, Håkan Emteborg, Andrea Held, Hendrik Emons
In the context of supporting the EU Member States in the implementation of the EU Water Framework Directive (WFD), a project for the production of a fish reference material (ERM-CE100) certified for its content of the two priority substances hexachlorobenzene (HCB) and hexachlorobutadiene (HCBD) was carried out at the Joint Research Centre (JRC) of the European Commission. The starting material was naturally contaminated Wels catfish (Silurus glanis), caught in the Ebro River (Spain). A novel approach for the processing of the fish was tested that resulted in a homogeneous and stable reference material in the form of a wet paste...
February 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28215918/molecular-detection-of-genes-responsible-for-macrolide-resistance-among-streptococcus-pneumoniae-isolated-in-north-lebanon
#3
Salam El Ashkar, Marwan Osman, Rayane Rafei, Hassan Mallat, Marcel Achkar, Fouad Dabboussi, Monzer Hamze
In recent years, the increased use of macrolides was linked with the emergence of resistance Streptococcus pneumoniae worldwide. The main aim of this study was to determine the prevalence of S. pneumoniae resistant to macrolides and to identify the macrolide resistance genotypes among clinical isolates collected in North Lebanon. Disk diffusion susceptibility method was performed for 132 strains of S. pneumoniae isolated over a period of 5 years in North Lebanon. Polymerase Chain Reaction followed by pyrosequencing was carried out for confirmation of phenotypic diagnosis...
February 16, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28207608/effects-of-internal-limiting-membrane-peeling-combined-with-removal-of-idiopathic-epiretinal-membrane-a-systematic-review-of-literature-and-meta-analysis
#4
Kunihiro Azuma, Takashi Ueta, Shuichiro Eguchi, Makoto Aihara
PURPOSE: To evaluate the effects on postoperative prognosis of internal limiting membrane (ILM) peeling in conjunction with removal of idiopathic epiretinal membranes (ERMs). METHODS: MEDLINE, Cochrane Central Register of Controlled Trials (CENTRAL), and EMBASE were systematically searched for studies that compared ILM peeling with no ILM peeling in surgery to remove idiopathic ERM. Outcome measures were best-corrected visual acuity, central macular thickness, and ERM recurrence...
February 15, 2017: Retina
https://www.readbyqxmd.com/read/28204888/ultra-high-sensitive-pah-analysis-of-certified-reference-materials-and-environmental-samples-by-gc-apli-ms
#5
Sigrid Große Brinkhaus, Jan B Thiäner, Christine Achten
Due to several polycyclic aromatic hydrocarbons (PAHs) being highly carcinogenic and at the same time occurring at very low environmental concentrations up to the microgram per kilogram range, highly sensitive chemical analysis in various matrices is needed. Here, for the first time, a method using gas chromatography (GC) and atmospheric pressure laser ionization-mass spectrometry (APLI-MS), which is much more sensitive compared to common GC-MS, proved to produce reliable (certified reference materials) and comparable (GC-MS) results...
February 15, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28195624/spontaneous-closure-of-full-thickness-macular-hole-with-epiretinal-membrane-in-vitrectomized-eyes-case-series-and-review-of-literature
#6
Wenlan Zhang, Dilraj S Grewal, Glenn J Jaffe, Tamer H Mahmoud, Sharon Fekrat
The authors describe three vitrectomized eyes that each subsequently developed a full-thickness macular hole (FTMH) that then spontaneously closed and summarize the current literature reporting these rare events. Clinical history, imaging, and course of three patients were reviewed and compiled. All three cases in this series developed a FTMH less than 7 months following vitrectomy (for epiretinal membrane [ERM], n = 1) and retinal detachment (n = 2) that demonstrated spontaneous resolution within 2 months of symptom onset, without intervention...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28195614/omega-sign-a-distinct-optical-coherence-tomography-finding-in-macular-combined-hamartoma-of-retina-and-retinal-pigment-epithelium
#7
Vinod Kumar, Rohan Chawla, Koushik Tripathy
BACKGROUND AND OBJECTIVE: To report a distinct optical coherence tomography (OCT) appearance of macular combined hamartoma of retina and retinal pigment epithelium (CHRRPE). PATIENTS AND METHODS: This is a retrospective case series of four eyes of four patients with macular CHRRPE who were assessed with the help of color fundus photographs, swept-source OCT (SS-OCT), and fundus fluorescein angiography wherever required. RESULTS: All four patients presented with decreased visual acuity...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28188233/multicenter-evaluation-of-cystatin-c-measurement-after-assay-standardization
#8
Anne-Sophie Bargnoux, Laurence Piéroni, Jean-Paul Cristol, Nils Kuster, Pierre Delanaye, Marie-Christine Carlier, Soraya Fellahi, Anne Boutten, Christine Lombard, Ana González-Antuña, Vincent Delatour, Etienne Cavalier
BACKGROUND: Since 2010, a certified reference material ERM-DA471/IFCC has been available for cystatin C (CysC). This study aimed to assess the sources of uncertainty in results for clinical samples measured using standardized assays. METHODS: This evaluation was performed in 2015 and involved 7 clinical laboratories located in France and Belgium. CysC was measured in a panel of 4 serum pools using 8 automated assays and a candidate isotope dilution mass spectrometry reference measurement procedure...
February 10, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28187469/-intraoperative-optical-coherence-tomography-an-overview-of-current-clinical-data-for-the-application-in-the-anterior-and-posterior-segments
#9
A J Augustin
Intraoperative optical coherence tomography (iOCT) represents another milestone in ocular imaging technologies. Now, for the first time, high resolution OCT images are available not only pre- or postoperatively, but also intraoperatively. In recent years, there have been significant advances in iOCT technology - from hand-held probes and mounted systems towards iOCT systems which are fully integrated into the surgical microscope and which provide seamless integration into the workflow. These systems offer high-resolution, intraoperative OCT scans in real-time and provide additional information on microstructures of the retina or the cornea...
February 10, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28180088/human-case-of-bacteremia-caused-by-streptococcus-canis-sequence-type-9-harboring-the-scm-gene
#10
Daisuke Taniyama, Yoshihiko Abe, Tetsuya Sakai, Takahide Kikuchi, Takashi Takahashi
Streptococcus canis (Sc) is a zoonotic pathogen that is transferred mainly from companion animals to humans. One of the major virulence factors in Sc is the M-like protein encoded by the scm gene, which is involved in anti-phagocytic activities, as well as the recruitment of plasminogen to the bacterial surface in cooperation with enolase, and the consequent enhancement of bacterial transmigration and survival. This is the first reported human case of uncomplicated bacteremia following a dog bite, caused by Streptococcus canis harboring the scm gene...
2017: IDCases
https://www.readbyqxmd.com/read/28166617/retroauricular-angiolymphoid-hyperplasia-with-eosinophilia-sustained-long-term-remission-following-treatment-with-corticosteroids
#11
Salvatore Panduri, Amanda Mazzi, Fabrizio Ghiara, Agata Janowska, Angelo M D' Erme, Teresa Oranges, Marco Romanelli
No abstract text is available yet for this article.
April 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28160248/gas-tamponade-for-retinectomy-in-pvr-related-retinal-detachments-a-retrospective-study
#12
Vasileios T Papastavrou, Irini Chatziralli, Dominic McHugh
INTRODUCTION: The purpose of the study was to evaluate the anatomical and functional results in patients with proliferative vitreoretinopathy (PVR) treated with retinectomy and perfluoro-octane gas (C3F8) as a tamponade agent. METHODS: 12 patients with inferior and anterior complicated PVR-related retinal detachment, who were treated with retinectomy, where C3F8 was used as the tamponade agent were examined. Primary outcome was the anatomical success, while visual acuity, existence of an epiretinal membrane (ERM) and intraocular pressure (IOP) postoperatively were secondary outcomes...
February 3, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28159218/biomonitoring-of-boron-development-and-characterization-of-a-simple-reliable-and-quality-controlled-biomonitoring-method
#13
Bernhard Michalke
Boron exposure is of interest and concern from an occupational point of view. Usual daily boron intake is related to boron blood plasma concentration <1mg/L and to <3mg/L in urine, but after exposure urine concentrations are quickly elevated. Reliable boron biomonitoring, typically in urine, thus is mandatory for occupational health control institutions. This paper reports on the development of a simple, fast and reliable boron determination procedure based on inductively coupled plasma - optical emission spectrometry (ICP-OES)...
March 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28151841/visualization-of-macular-pucker-by-multicolor-scanning-laser-imaging
#14
Ilkay Kilic Muftuoglu, Dirk-Uwe Bartsch, Giulio Barteselli, Raouf Gaber, Joseph Nezgoda, William R Freeman
PURPOSE: To compare the visualization of the epiretinal membrane (ERM) using multicolor imaging (MCI) (Heidelberg Engineering, Carlsbad, CA) and conventional white light flood color fundus photography (FP) (Topcon). METHODS: The paired images of patients with ERM who underwent same-day MCI and FP examinations were reviewed. Visibility of the ERM was graded using a scale (0: not visible, 1: barely visible, and 2: clearly visible) by masked readers, and surface folds were counted to quantify the membrane visibility for each method...
February 1, 2017: Retina
https://www.readbyqxmd.com/read/28134963/gli1-expression-in-human-epiretinal-membranes
#15
Sohee Jeon, Jiwon Baek, Won Ki Lee
Purpose: We evaluate the expression of Gli1 in human epiretinal membranes (ERM) and correlate this with clinical data. Methods: We prospectively recruited patients with ERM. A total of 33 human ERM specimens were immunolabeled with anti-Gli1 antibody and the number of total cells/hyperfield (HF), Gli1(+) cells/HF, and the percentage of Gli1(+) cells/total cells were calculated. We evaluated the interrelationship of cellular properties and clinical findings, such as presence of diabetic retinopathy (DR), retinal breaks, intraocular inflammation, central foveal thickness, maximal retinal thickness, retinal contraction, lamellar holes, pseudoholes, the attenuation or absence of an inner segment/outer segment (IS/OS) junction/external limiting membrane (ELM), cystic changes, and paravascular inner retinal defects...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28131077/distribution-of-pahs-in-different-compartment-of-creek-ecosystem-ecotoxicological-concern-and-human-health-risk
#16
M Tiwari, S K Sahu, G G Pandit
We report levels of polycyclic aromatic hydrocarbons in sediment, seawater, fish and crab samples from Thane creek, India. Concentrations of sixteen USEPA PAH in sediments varies from 874 to 1925ngg(-1), dry weight (dw) in winter, between 219-495ngg(-1) in summer. In seawater Σ16 PAHs concentration during winter was recorded 706±193ngL(-1), and during summer 337±79ngL(-1). Total concentrations of PAHs in consumable portion of lizard fish, bombay duck and crab were found 156.8±18 and 122±24.5ngg(-1), 117...
January 15, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28129571/investigation-of-igf2-igfbp2-and-p63-proteins-in-rhabdomyosarcoma-tumors
#17
Yongbo Yu, Libing Fu, Shen Wang, Yaqiong Jin, Shujing Han, Ping Chu, Jie Lu, Yongli Guo, Lejian He, Xin Ni
: Many efforts have been made to address involvement of the insulin-like growth-factor (IGF) pathway in rhabdomyosarcoma (RMS) pathogenesis, but the actual role of IGF in RMS is still controversial. OBJECTIVE: To investigate the implications of IGF2, IGFBP2 and p63 in RMS, and further explored their potential interaction. DESIGN: A total of 114 specimens of RMS along with clinic-pathologic characteristics were collected from the year of 2003 to 2013...
January 13, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28129474/role-of-moesin-src-and-ros-in-advanced-glycation-end-product-induced-vascular-endothelial-dysfunction
#18
Wei-Jin Zhang, Pei-Xin Li, Xiao-Hua Guo, Qiao-Bing Huang
The disruption of endothelial integrity and the occurrence of angiogenesis in response to advanced glycation end products (AGEs) contribute greatly to micro- and macrovascular complications associated with diabetes mellitus (DM). Among human dermal, brain and retinal vascular endothelial cells, activation of ERM protein (Ezrin, radixin and moesin protein), moesin, by phosphorylation of Threonine 558 (Thr-558) is involved in AGE-induced hyperpermeability and angiogenesis via the Rho and Rho-associated protein kinase (Rho/ROCK) and p38 pathways...
January 27, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28125840/association-of-high-mobility-group-box-1-with-th-cell-related-cytokines-in-the-vitreous-of-ocular-sarcoidosis-patients
#19
Masaru Takeuchi, Manzo Taguchi, Tomohito Sato, Kyoko Karasawa, Yutaka Sakurai, Kohzou Harimoto, Masataka Ito
Purpose: High-mobility group box-1 (HMGB1) is a nonhistone DNA-binding nuclear protein released from necrotic cells, which is also secreted by activated leukocytes and acts as a primary proinflammatory cytokine. In this study, we compared vitreous HMGB1 levels in ocular sarcoidosis with those in noninflammatory vitreoretinal diseases and evaluated its association with Th cell-related and proinflammatory cytokines. Methods: The study group consisted of 24 patients with ocular sarcoidosis...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28124146/aniseikonia-in-various-retinal-disorders
#20
Fumiki Okamoto, Yoshimi Sugiura, Yoshifumi Okamoto, Takahiro Hiraoka, Tetsuro Oshika
PURPOSE: The purpose was to quantify and compare the severity of aniseikonia in patients undergoing vitrectomy for various retinal disorders. METHODS: We studied 357 patients with retinal disorders including epiretinal membrane (ERM), macular hole (MH), cystoid macular edema with branch / central retinal vein occlusion (BRVO-CME / CRVO-CME), diabetic macular edema (DME), macula-off rhegmatogenous retinal detachment (M-off RD), and macula-on RD (M-on RD) as well as 31 normal controls...
January 25, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
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