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https://www.readbyqxmd.com/read/28632914/contrast-enhanced-harmonic-endoscopic-ultrasonography-for-differential-diagnosis-of-localized-gallbladder-lesions
#1
Ken Kamata, Mamoru Takenaka, Masayuki Kitano, Shunsuke Omoto, Takeshi Miyata, Kosuke Minaga, Kentaro Yamao, Hajime Imai, Tosiharu Sakurai, Naoshi Nishida, Hiroshi Kashida, Takaaki Chikugo, Yasutaka Chiba, Takuya Nakai, Yoshifumi Takeyama, Andrea Lisotti, Pietro Fusaroli, Masatoshi Kudo
BACKGROUND AND AIMS: The differential diagnosis of localized gallbladder lesions is challenging. The aim of this study was to evaluate the utility of contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) for diagnosis of localized gallbladder lesions. PATIENTS: One hundred and twenty-five patients with localized gallbladder lesions were evaluated by CH-EUS between March 2007 and February 2014. This was a single-center retrospective study. METHODS: The utilities of fundamental B-mode EUS (FB-EUS) and CH-EUS in the differentiation of gallbladder lesions and sludge plug were initially compared...
June 20, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28631860/abi2-io3-2f5-a-k-rb-and-cs-combination-of-halide-and-oxide-anionic-units-to-create-large-shg-response-with-wide-bandgap
#2
Xingguo Chen, Hongming Liu, Qi Wu, Xingxing Jiang, Xianggao Meng, Zheshuai Lin, Jingui Qin
A family of nonlinear optical materials that contain the halide, oxide and oxyhalide polar units simultaneously in a single structure, namely, ABi2(IO3)2F5 (A = K, 1;Rb,2 and Cs,3), have been designed and synthesized. They crystallize in the same polar space group of P21 with a two-dimensional double-layered framework constructed by [BiF5]2- and [BiO2F4]5- units connected to each other by four F atoms, in which two [IO3]- groups are linked to [BiO2F4]5- unit on the same side, and a hanging Bi-F bond of [BiF5]2- unit is located on the other side via ionic interaction with the layer-inserted alkali metal ions to form three-dimensional structure...
June 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28631225/definition-of-the-upper-reference-limit-for-thyroglobulin-antibodies-according-to-the-national-academy-of-clinical-biochemistry-guidelines-comparison-of-eleven-different-automated-methods
#3
F D'Aurizio, P Metus, A Ferrari, B Caruso, R Castello, D Villalta, A Steffan, K Gaspardo, F Pesente, N Bizzaro, E Tonutti, S Valverde, C Cosma, M Plebani, R Tozzoli
PURPOSE: In the last two decades, thyroglobulin autoantibodies (TgAb) measurement has progressively switched from marker of thyroid autoimmunity to test associated with thyroglobulin (Tg) to verify the presence or absence of TgAb interference in the follow-up of patients with differentiated thyroid cancer. Of note, TgAb measurement is cumbersome: despite standardization against the International Reference Preparation MRC 65/93, several studies demonstrated high inter-method variability and wide variation in limits of detection and in reference intervals...
December 2017: Auto- Immunity Highlights
https://www.readbyqxmd.com/read/28630487/multicolor-two-photon-imaging-of-endogenous-fluorophores-in-living-tissues-by-wavelength-mixing
#4
Chiara Stringari, Lamiae Abdeladim, Guy Malkinson, Pierre Mahou, Xavier Solinas, Isabelle Lamarre, Sébastien Brizion, Jean-Baptiste Galey, Willy Supatto, Renaud Legouis, Ana-Maria Pena, Emmanuel Beaurepaire
Two-photon imaging of endogenous fluorescence can provide physiological and metabolic information from intact tissues. However, simultaneous imaging of multiple intrinsic fluorophores, such as nicotinamide adenine dinucleotide(phosphate) (NAD(P)H), flavin adenine dinucleotide (FAD) and retinoids in living systems is generally hampered by sequential multi-wavelength excitation resulting in motion artifacts. Here, we report on efficient and simultaneous multicolor two-photon excitation of endogenous fluorophores with absorption spectra spanning the 750-1040 nm range, using wavelength mixing...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630449/effect-of-dna-sequence-of-fab-fragment-on-yield-characteristics-and-cell-growth-of-e-coli
#5
Antti Kulmala, Tuomas Huovinen, Urpo Lamminmäki
Codon usage is one of the factors influencing recombinant protein expression. We were interested in the codon usage of an antibody Fab fragment gene exhibiting extreme toxicity in the E. coli host. The toxic synthetic human Fab gene contained domains optimized by the "one amino acid-one codon" method. We redesigned five segments of the Fab gene with a "codon harmonization" method described by Angov et al. and studied the effects of these changes on cell viability, Fab yield and display on filamentous phage using different vectors and bacterial strains...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630435/in-situ-electrical-and-thermal-monitoring-of-printed-electronics-by-two-photon-mapping
#6
Francesco Pastorelli, Nicolò Accanto, Mikkel Jørgensen, Niek F van Hulst, Frederik C Krebs
Printed electronics is emerging as a new, large scale and cost effective technology that will be disruptive in fields such as energy harvesting, consumer electronics and medical sensors. The performance of printed electronic devices relies principally on the carrier mobility and molecular packing of the polymer semiconductor material. Unfortunately, the analysis of such materials is generally performed with destructive techniques, which are hard to make compatible with in situ measurements, and pose a great obstacle for the mass production of printed electronics devices...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629855/con4ei-development-of-serious-eye-damage-and-eye-irritation-testing-strategies-with-respect-to-the-requirements-of-the-un-ghs-eu-clp-hazard-categories
#7
Sandra Verstraelen, An R Van Rompay
The main objective of the CON4EI (CONsortium for in vitro Eye Irritation testing strategy) project (2015-2016) was to develop tiered, non-animal testing strategies for serious eye damage and eye irritation assessment in relation to the most important drivers of classification. The serious eye damage and eye irritation potential of a set of 80 chemicals was identified based on existing in vivo Draize eye test data and testing was conducted using the following eight alternative test methods: BCOP (Bovine Corneal Opacity and Permeability)+histopathology, BCOP-LLBO (BCOP Laser Light-Based Opacitometer), ICE (Isolated Chicken Eye)+histopathology, STE (Short Term Exposure), EpiOcular™ EIT (EpiOcular Eye Irritation Test), EpiOcular™ ET-50 (EpiOcular™ Time-to-toxicity), SkinEthic™ HCE EIT (SkinEthic™ Human Corneal Epithelial Eye Irritation Test), and SMI (Slug Mucosal Irritation)...
June 16, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28629592/measurement-and-clinical-utility-of-%C3%AE-ctx-in-serum-and-plasma
#8
Stephen A P Chubb, Samuel D Vasikaran
Biochemical markers of bone turnover (BTM) are released during bone remodeling and can be measured in blood or urine as noninvasive surrogate markers for the bone remodeling rate. The C-terminal cross-linked telopeptide of type I collagen (βCTX) is released during bone resorption and is specific to bone tissue. Assays have been developed to measure βCTX in blood and in urine; most current use of βCTX measurement for research and in clinical practice is performed on a blood sample. Method-specific differences for serum and plasma βCTX have led to initiatives to standardize or harmonize βCTX commercial assays...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28628932/-european-collaboration-in-medical-device-assessment-one-step-towards-cross-border-health-care
#9
Julia Mayer, Sabine Ettinger, Anna Nachtnebel
Aim The aim of this paper was to present the legal framework as well as previous experience in transnational collaboration regarding the assessment of medical devices for reimbursement decisions. Furthermore, the possible benefit of transnational collaboration for various stakeholders will be discussed. Methods Experiences gathered with the compilation of overall 6 joint rapid assessments of medical devices within the completed European Network for Health Technology Assessment (EUnetHTA) Joint Action 2 (JA2) are summarised and discussed...
June 19, 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28628475/predictive-autoimmunity-using-autoantibodies-screening-for-anti-nuclear-antibodies
#10
Dolores Pérez, Boris Gilburd, Óscar Cabrera-Marante, Jose A Martínez-Flores, Manuel Serrano, Laura Naranjo, Daniel Pleguezuelo, Luis Morillas, Ora Shovman, Estela Paz-Artal, Yehuda Shoenfeld, Antonio Serrano
BACKGROUND: Early detection of antinuclear antibodies (ANA) in asymptomatic subjects is useful to predict autoimmune diseases years before diagnosis. ANA have been determined by indirect immunofluorescence (IIF) using human epithelial type 2 (HEp-2) cells, which is considered the gold standard technique. Multiplex technology (BioPlex ANA Screen) has been introduced for ANA evaluation in recent years. Nevertheless, concordance between BioPlex and IIF is low and there is no harmonization between both methods for detection of autoantibodies...
June 17, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28628313/tunneling-kinetics-and-non-adiabatic-proton-coupled-electron-transfer-in-proteins-the-effect-of-electric-fields-and-anharmonic-donor-acceptor-interactions
#11
Bridget Salna, Abdelkrim Benabbas, Douglas Russo, Paul M Champion
A proper description of proton donor-acceptor (D-A) distance fluctuations is crucial for understanding tunneling in proton-coupled electron transport (PCET). The typical harmonic approximation for the D-A potential results in a Gaussian probability distribution, which does not appropriately reflect the electronic repulsion forces that increase the energetic cost of sampling shorter D-A distances. Because these shorter distances are the primary channel for thermally activated tunneling, the analysis of tunneling kinetics depends sensitively on the inherently anharmonic nature of the D-A interaction...
June 19, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28627750/emergent-low-symmetry-phases-and-large-property-enhancements-in-ferroelectric-knbo3-bulk-crystals
#12
Tom T A Lummen, J Leung, Amit Kumar, X Wu, Y Ren, Brian K VanLeeuwen, Ryan C Haislmaier, Martin Holt, Keji Lai, Sergei V Kalinin, Venkatraman Gopalan
The design of new or enhanced functionality in materials is traditionally viewed as requiring the discovery of new chemical compositions through synthesis. Large property enhancements may however also be hidden within already well-known materials, when their structural symmetry is deviated from equilibrium through a small local strain or field. Here, the discovery of enhanced material properties associated with a new metastable phase of monoclinic symmetry within bulk KNbO3 is reported. This phase is found to coexist with the nominal orthorhombic phase at room temperature, and is both induced by and stabilized with local strains generated by a network of ferroelectric domain walls...
June 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28627153/-implementation-of-dna-hpv-primary-screening-in-italian-cervical-cancer-screening-programmes-results-of-the-middir-project
#13
Francesca Di Stefano, Paolo Giorgi Rossi, Francesca Carozzi, Guglielmo Ronco, Laura Cacciani, Simona Vecchi, Carlo Naldoni, Nereo Segnan
OBJECTIVES: to obtain data on conversion paths to HPV testing as part of screening programmes and to harmonize the introduction of HPV testing in primary cervical cancer screening protocols of Italian programmes. DESIGN: survey by questionnaire on strategies adopted by screening programmes for transition to primary HPV testing; systematic review of the literature; discussion among experts. SETTING AND PARTICIPANT S: managers of Italian Regions' cervical cancer screening programmes...
January 2017: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/28625727/incomplete-loading-of-sls-and-fassif-micelles-within-the-diffusion-layers-of-dispersed-drug-particles-during-dissolution
#14
Kendra Galipeau, Michael Socki, Adam Socia, Paul A Harmon
Poorly water soluble drug candidates have been common in developmental pipelines over the last several decades. This has fueled considerable research around understanding how bile salt and model micelles can improve drug particle dissolution rates and human drug exposure levels. However, in the pharmaceutical context only a single mechanism of how micelles load solute has been assumed, that being the direct loading mechanism put forth by Cussler(1) 40 years ago. In this model micelles load at the particle surface and will be loaded to their equilibrium loading values...
June 15, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28625353/a-closer-look-at-the-hippocampus-and-memory
#15
REVIEW
Joel L Voss, Donna J Bridge, Neal J Cohen, John A Walker
Current interpretations of hippocampal memory function are blind to the fact that viewing behaviors are pervasive and complicate the relationships among perception, behavior, memory, and brain activity. For example, hippocampal activity and associative memory demands increase with stimulus complexity. Stimulus complexity also strongly modulates viewing. Associative processing and viewing thus are often confounded, rendering interpretation of hippocampal activity ambiguous. Similar considerations challenge many accounts of hippocampal function...
June 15, 2017: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/28625002/changes-in-dietary-intake-and-eating-behavior-in-adolescents-after-bariatric-surgery-an-ancillary-study-to-the-teen-labs-consortium
#16
David B Sarwer, Rebecca J Dilks, Jacqueline C Spitzer, Robert I Berkowitz, Thomas A Wadden, Renee H Moore, Jesse L Chittams, Mary L Brandt, Mike K Chen, Anita P Courcoulas, Carroll M Harmon, Michael A Helmrath, Marc P Michalsky, Stavra A Xanthakos, Meg H Zeller, Todd M Jenkins, Thomas H Inge
BACKGROUND: A growing number of studies suggest that bariatric surgery is safe and effective for adolescents with severe obesity. However, surprisingly little is known about changes in dietary intake and eating behavior of adolescents who undergo bariatric surgery. OBJECTIVE: Investigate changes in dietary intake and eating behavior of adolescents with obesity who underwent bariatric surgery (n = 119) or lifestyle modification (LM) (n = 169). SETTING: University-based health systems METHODS: A prospective investigation of 288 participants (219 female and 69 male) prior to bariatric surgery or LM and again 6, 12, and 24 months (surgery patients only) after treatment...
June 17, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28624959/systematic-review-of-diagnostic-criteria-used-in-atopic-dermatitis-randomized-controlled-trials
#17
REVIEW
Paras P Vakharia, Rishi Chopra, Jonathan I Silverberg
BACKGROUND: Numerous diagnostic criteria for atopic dermatitis are used in clinical trials, which may limit comparison of results. OBJECTIVE: We sought to determine the most commonly used atopic dermatitis diagnostic criteria in randomized controlled trials internationally. METHODS: We performed a systematic review of randomized controlled trials with a pharmacological intervention from 2007 to 2016. Cochrane Library, EMBASE, GREAT, LILACS, MEDLINE, and Scopus were searched...
June 17, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28624539/polarization-resolved-second-harmonic-microscopy
#18
REVIEW
Nirmal Mazumder, Gitanjal Deka, Wei-Wen Wu, Ankur Gogoi, Guan-Yu Zhuo, Fu-Jen Kao
Second harmonic (SH) microscopy has proven to be a powerful imaging modality over the past years due to its intrinsic advantages as a multiphoton process with endogenous contrast specificity, which allows pinhole-less optical sectioning, non-invasive observation, deep tissue penetration, and the possibility of easier signal detection at visible wavelengths. Depending on the relative orientation between the polarization of the incoming light and the second-order susceptibility of non-centrosymmetric structures, SH microscopy provides the unique capacity to probe the absolute molecular structure of a broad variety of biological tissues without the necessity for additional labeling...
June 14, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28623727/current-clinical-magnetoencephalography-practice-across-europe-are-we-closer-to-use-meg-as-an-established-clinical-tool
#19
Xavier De Tiège, Daniel Lundqvist, Sándor Beniczky, Stefano Seri, Ritva Paetau
PURPOSE: This comprehensive survey aims at characterizing the current clinical use of magnetoencephalography (MEG) across European MEG centres. METHODS: Forty-four MEG centres across Europe were contacted in May 2015 via personalized e-mail to contribute to survey. The web-based survey was available on-line for 1 month and the MEG centres that did not respond were further contacted to maximize participation. RESULTS: Among the 57% of responders, 12 centres from 10 different countries reported to use MEG for clinical applications...
June 8, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28623376/eanm-earl-harmonization-strategies-in-pet-quantification-from-daily-practice-to-multicentre-oncological-studies
#20
REVIEW
Nicolas Aide, Charline Lasnon, Patrick Veit-Haibach, Terez Sera, Bernhard Sattler, Ronald Boellaard
Quantitative positron emission tomography/computed tomography (PET/CT) can be used as diagnostic or prognostic tools (i.e. single measurement) or for therapy monitoring (i.e. longitudinal studies) in multicentre studies. Use of quantitative parameters, such as standardized uptake values (SUVs), metabolic active tumor volumes (MATVs) or total lesion glycolysis (TLG), in a multicenter setting requires that these parameters be comparable among patients and sites, regardless of the PET/CT system used. This review describes the motivations and the methodologies for quantitative PET/CT performance harmonization with emphasis on the EANM Research Ltd...
June 16, 2017: European Journal of Nuclear Medicine and Molecular Imaging
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