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https://www.readbyqxmd.com/read/28817422/lung-ultrasound-in-the-critically-ill-the-blue-protocol
#1
Davinder Ramsingh
No abstract text is available yet for this article.
August 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28809005/resazurin-live-cell-assay-setup-and-fine-tuning-for-reliable-cytotoxicity-results
#2
José Á Rodríguez-Corrales, Jatinder S Josan
In vitro cytotoxicity tests allow for fast and inexpensive screening of drug efficacy prior to in vivo studies. The resazurin assay (commercialized as Alamar Blue(®)) has been extensively utilized for this purpose in 2D and 3D cell cultures, and high-throughput screening. However, improper or lack of assay validation can generate unreliable results and limit reproducibility. Herein, we report a detailed protocol for the optimization of the resazurin assay to determine relevant analytical (limits of detection, quantification, and linear range) and biological (growth kinetics) parameters, and, thus, provide accurate cytotoxicity results...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28802354/a-novel-management-of-streptococcal-pharyngotonsillar-infections-by-laser-activated-silver-nanoparticles-and-methylene-blue-conjugate-in%C3%A2-vitro-study
#3
Ahmed Kassab, Ola Dabous, Mona Morsy
INTRODUCTION: Species of Streptococcus are classified based on their hemolytic properties into alpha and beta types. And, since antimicrobial drug resistance is an increasingly problematic issue, the efforts to develop modalities that would overcome this obstacle and avoid antibiotic side effects is an ongoing challenge. METHODS AND MATERIALS: 20 patients from both sexes were selected. The isolated organisms were identified according to standard laboratory methods...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28777541/uv-curable-contact-active-benzophenone-terminated-quaternary-ammonium-antimicrobials-for-applications-in-polymer-plastics-and-related-devices
#4
Lukas Porosa, Alexander Caschera, Joseph Bedard, Amanda Mocella, Evan Ronan, Alan J Lough, Gideon Wolfaardt, Daniel A Foucher
A series of UV active benzophenone ([C6H5COC6H4-O-(CH2)n-N(+)Me2R][X(-)]; 4, R = C12H25, n = 3, X(-) = Br(-); 5a-c, R = C18H37, n = 3, X(-) = Cl(-), Br(-), I(-); 6a-c, R = C18H37, n = 4, X(-) = Cl(-), Br(-), I(-); 7a-c, R = C18H37, n = 6, X(-) = Cl(-), Br(-), I(-)) terminated C12 and C18 quaternary ammonium salts (QACs) were prepared by thermal or microwave-driven Menshutkin protocols of the appropriate benzophenone alkyl halide (1a-c, 2a-c, 3a-c) with the corresponding dodecyl- or octadecyl N,N-dimethylamine...
August 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28766298/robust-cost-effective-profiling-of-rna-binding-protein-targets-with-single-end-enhanced-crosslinking-and-immunoprecipitation-seclip
#5
Eric L Van Nostrand, Thai B Nguyen, Chelsea Gelboin-Burkhart, Ruth Wang, Steven M Blue, Gabriel A Pratt, Ashley L Louie, Gene W Yeo
Profiling of RNA binding protein targets in vivo provides critical insights into the mechanistic roles they play in regulating RNA processing. The enhanced crosslinking and immunoprecipitation (eCLIP) methodology provides a framework for robust, reproducible identification of transcriptome-wide protein-RNA interactions, with dramatically improved efficiency over previous methods. Here we provide a step-by-step description of the eCLIP method, along with insights into optimal performance of critical steps in the protocol...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28752107/muscle-histology-characterization-using-h-e-staining-and-muscle-fiber-type-classification-using-immunofluorescence-staining
#6
Chao Wang, Feng Yue, Shihuan Kuang
Muscle function is determined by its structure and fiber type composition. Here we describe a protocol to examine muscle histology and myofiber types using hematoxylin and eosin (H&E) and immunofluorescence staining, respectively. H&E stain nucleus in blue and cytoplasm in red, therefore allowing for morphological analyses, such as myofiber diameter, the presence of degenerated and regenerated myofibers, and adipocytes and fibrotic cells. Muscle fibers in adult skeletal muscles of rodents are classified into 4 subtypes based on the expression of myosin heavy chain proteins: Myh7 (type I fiber), Myh2 (type IIA fiber), Myh1 (type IIX fiber), Myh4 (type IIB fiber)...
May 20, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28733896/precancerous-acf-induction-affects-their-regional-distribution-forsaking-oxidative-stress-implication-in-1-2-dimethylhydrazine-induced-colon-carcinogenesis-model
#7
Hichem Moulahoum, Andras-Laszlo Nagy, Bahia Djerdjouri, Simona Clichici
Colon cancer is thought to develop in a stepwise fashion. In this study, the relationship between aberrant crypt foci (ACF) regional distribution and oxidative stress evolution was studied in a murine model of initial colon carcinogenesis induced by dimethylhydrazine (DMH). Mice were given 2 weekly subcutaneous injections of DMH (20 mg/kg) and killed at the 10th, 12th or 14th week. ACF was scored for number, distribution and crypt multiplicity after methylene-blue coloration and histologically analyzed afterwards...
July 21, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28721010/antiglioma-effects-of-cytarabine-on-leptomeningeal-metastasis-of-high-grade-glioma-by-targeting-the-pi3k-akt-mtor-pathway
#8
Kai-Hong Zhao, Can Zhang, Yue Bai, Yan Li, Xun Kang, Jian-Xin Chen, Kun Yao, Tao Jiang, Xiao-Song Zhong, Wen-Bin Li
Leptomeningeal metastasis (LM) of high-grade glioma is a highly lethal disease requiring new effective therapeutic measures. For both de novo or relapsed glioma with LM, intrathecal cytarabine chemotherapy is not frequently used for first-line and relapse protocols. We encountered a clinical case demonstrating effective application of cytarabine in high-grade glioma with LM, prompting us to explore the effects of cytarabine on malignant glioma and molecular mechanisms of such effects through in vivo and in vitro experiments...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28713887/morphology-dependent-catalysis-and-surface-enhanced-raman-scattering-sers-studies-using-pd-nanostructures-in-dna-ctab-and-pva-scaffolds
#9
Subrata Kundu, Su-In Yi, Lian Ma, Yunyun Chen, Wei Dai, Alexander M Sinyukov, Hong Liang
Palladium nanoparticles (Pd NPs) of three different morphologies viz., nanocubes with cetyltrimethylammonium bromide (CTAB), nanowires with polyvinyl alcohol (PVA) and Pd NPs with deoxyribonucleic acid (DNA) scaffolds were synthesized by UV-irradiation. Catalysis and surface enhanced Raman scattering (SERS) studies were done with the synthesized morphologically distinct Pd nanostructures for the very first time. The catalytic rate was extremely high with Pd nanowires templated with PVA and the order of the catalytic rate was Pd nanowires in PVA > Pd nanocubes in CTAB > DNA-Pd wire-like assemblies...
July 25, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28713831/new-mydriasis-free-electroretinogram-recorded-with-skin-electrodes-in-healthy-subjects
#10
Ken Asakawa, Kana Amino, Machiho Iwase, Yuki Kusayanagi, Akiho Nakamura, Rio Suzuki, Takashi Yuuki, Hitoshi Ishikawa
PURPOSE: To evaluate the reproducibility and consistency of the new mydriasis-free electroretinogram (ERG) with a skin electrode (RETeval) device, to determine the normative values of parameters, and to clarify the usefulness of pupil records to colored-light stimulus. METHODS: A total of 100 eyes of 50 healthy subjects (mean age, 21.4 years) were enrolled. The diagnostic parameters obtained by the RETeval device were examined under the following conditions. The reproducibility was determined with the coefficient of variation (CV)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28703245/blue-light-promoted-carbon-carbon-double-bond-isomerization-and-its-application-in-the-syntheses-of-quinolines
#11
Xinzheng Chen, Shuxian Qiu, Sasa Wang, Huifei Wang, Hongbin Zhai
A blue-light-promoted carbon-carbon double bond isomerization in the absence of any photoredox catalyst is reported. It provides rapid access to a series of quinolines in good to excellent yields under simple aerobic conditions. The protocol is direct, catalyst-free and operationally convenient.
August 2, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28698267/clinical-criteria-for-tracheostomy-decannulation-in-subjects-with-acquired-brain-injury
#12
Claudia Enrichi, Irene Battel, Cristiano Zanetti, Isabella Koch, Laura Ventura, Katie Palmer, Francesca Meneghello, Francesco Piccione, Simonetta Rossi, Marta Lazzeri, Maurizio Sommariva, Andrea Turolla
BACKGROUND: Patients with acquired brain injury (ABI) often require long periods of having a tracheostomy tube for airway protection and prolonged mechanical ventilation. It has been recognized that fast and safe decannulation improves outcomes and facilitates the recovery process. Nevertheless, few studies have provided evidence for decannulation criteria, despite the high prevalence of ABI subjects with tracheostomies. The aim of our study was to assess which clinical parameters are the best predictors for decannulation in subjects with ABI...
July 11, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28685876/eus-fna-of-the-merkel-cell-carcinoma-metastasis-to-the-pancreas-cytomorphology-and-immunocytochemistry-on-direct-cytological-smears
#13
T Stoos-Veic, M Tadic, G Aralica, V Milicic, C Tomasovic-Loncaric
OBJECTIVE: To report two cases of Merkel cell carcinoma (MCC) metastatic to the pancreas diagnosed with endoscopic ultrasound-guided-fine needle aspiration (EUS-FNA) and to add the case of concomitant chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL) and MCC to the literature. The aim is to alert the cytopathologists once more to the problems of differential diagnosis of pancreatic metastasis of MCC and to describe the possibilities of ancillary methods performed on direct cytological smears...
July 6, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28677080/comparison-of-impact-of-two-decontamination-solutions-on-the-viability-of-the-cells-in-human-amnion
#14
Ingrida Smeringaiova, Peter Trosan, Miluse Berka Mrstinova, Jan Matecha, Jan Burkert, Jan Bednar, Katerina Jirsova
Human amniotic membrane (HAM) is used as an allograft in regenerative medicine or as a source of pluripotent cells for stem cell research. Various decontamination protocols and solutions are used to sterilize HAM before its application, but little is known about the toxicity of disinfectants on HAM cells. In this study, we tested two decontamination solutions, commercial (BASE·128) and laboratory decontamination solution (LDS), with an analogous content of antimycotic/antibiotics for their cytotoxic effect on HAM epithelial (EC) and mesenchymal stromal cells (MSC)...
July 4, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28667624/blue-native-page-analysis-of-bacterial-secretion-complexes
#15
Susann Zilkenat, Tobias Dietsche, Julia V Monjarás Feria, Claudia E Torres-Vargas, Mehari Tesfazgi Mebrhatu, Samuel Wagner
Bacterial protein secretion systems serve to translocate substrate proteins across up to three biological membranes, a task accomplished by hydrophobic, membrane-spanning macromolecular complexes. The overexpression, purification, and biochemical characterization of these complexes is often difficult, impeding progress in understanding the structure and function of these systems. Blue native (BN) polyacrylamide gel electrophoresis (PAGE) allows for the investigation of these transmembrane complexes right from their originating membranes, without the need for long preparative steps, and is amenable to the parallel characterization of a number of samples under near-native conditions...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28647284/the-effects-of-high-intensity-interval-training-on-muscle-size-and-quality-in-overweight-and-obese-adults
#16
Malia N M Blue, Abbie E Smith-Ryan, Eric T Trexler, Katie R Hirsch
OBJECTIVES: Despite growing popularity of high intensity interval training (HIIT) for improving health and fitness, limited data exist identifying the effects of HIIT on muscle characteristics. The purpose of the current study was to investigate the effects of a 3-week HIIT intervention on muscle size and quality in overweight and obese men and women. DESIGN: Randomized controlled trial. METHODS: Forty-four overweight and obese men and women (mean±SD; age: 35...
June 8, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28636921/characterizing-intracellular-ice-formation-of%C3%A2-lymphoblasts-using-low-temperature-raman%C3%A2-spectroscopy
#17
Guanglin Yu, Yan Rou Yap, Kathryn Pollock, Allison Hubel
Raman microspectroscopy was used to quantify freezing response of cells to various cooling rates and solution compositions. The distribution pattern of cytochrome c in individual cells was used as a measure of cell viability in the frozen state and this metric agreed well with the population-averaged viability and trypan blue staining experiments. Raman imaging of cells demonstrated that intracellular ice formation (IIF) was common and did not necessarily result in cell death. The amount of intracellular ice as well as ice crystal size played a role in determining whether or not ice inside the cell was a lethal event...
June 20, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28632841/green-light-autofluorescence-versus-combined-blue-light-autofluorescence-and-near-infrared-reflectance-imaging-in-geographic-atrophy-secondary-to-age-related-macular-degeneration
#18
COMPARATIVE STUDY
Maximilian Pfau, Lukas Goerdt, Steffen Schmitz-Valckenberg, Matthias M Mauschitz, Divyansh K Mishra, Frank G Holz, Moritz Lindner, Monika Fleckenstein
Purpose: To compare the intermodality and interreader agreement for geographic atrophy (GA) lesion size quantification in green-light fundus autofluorescence (GAF; excitation = 518 nm) versus combined blue-light fundus autofluorescence (BAF; excitation = 488 nm) and near-infrared reflectance (NIR; 820 nm) -based grading. Methods: Confocal scanning laser ophthalmoscopy (cSLO) GAF, BAF, and NIR images of 40 eyes from 29 patients (mean age 79.7 years) with GA secondary to AMD were recorded according to a standardized protocol...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28624146/the-impact-of-the-blue-protocol-ultrasonography-on-the-time-taken-to-treat-acute-respiratory-distress-in-the-emergency-department
#19
Javad Seyedhosseini, Golnaz Bashizadeh-Fakhar, Shirani Farzaneh, Mehdi Momeni, Ehsan Karimialavijeh
No abstract text is available yet for this article.
June 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28622352/volunteer-trials-of-a-novel-improvised-dry-decontamination-protocol-for-use-during-mass-casualty-incidents-as-part-of-the-uk-s-initial-operational-response-ior
#20
Richard Amlôt, Holly Carter, Lorna Riddle, Joanne Larner, Robert P Chilcott
Previous studies have demonstrated that rapid evacuation, disrobing and emergency decontamination can enhance the ability of emergency services and acute hospitals to effectively manage chemically-contaminated casualties. The purpose of this human volunteer study was to further optimise such an "Initial Operational Response" by (1) identifying an appropriate method for performing improvised skin decontamination and (2) providing guidance for use by first responders and casualties. The study was performed using two readily available, absorbent materials (paper towels and incontinence pads)...
2017: PloS One
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