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https://www.readbyqxmd.com/read/28819447/targeting-activated-platelets-a-unique-and-potentially-universal-approach-for-cancer-imaging
#1
May Lin Yap, James D McFadyen, Xiaowei Wang, Nicholas A Zia, Jan David Hohmann, Melanie Ziegler, Yu Yao, Alan Pham, Matthew Harris, Paul S Donnelly, P Mark Hogarth, Geoffrey A Pietersz, Bock Lim, Karlheinz Peter
Rationale The early detection of primary tumours and metastatic disease is vital for successful therapy and is contingent upon highly specific molecular markers and sensitive, non-invasive imaging techniques. We hypothesized that the accumulation of activated platelets within tumours is a general phenomenon and thus represents a novel means for the molecular imaging of cancer. Here we investigate a unique single chain antibody (scFv), which specifically targets activated platelets, as a novel biotechnological tool for molecular imaging of cancer...
2017: Theranostics
https://www.readbyqxmd.com/read/28818076/extensive-protein-hydrolyzation-is-indispensable-to-prevent-ige-mediated-poultry-allergen-recognition-in-dogs-and-cats
#2
Thierry Olivry, Jennifer Bexley, Isabelle Mougeot
BACKGROUND: The central premise for the commercialization of diets with hydrolyzed ingredients is that the small-sized digested peptides would be unable to crosslink allergen-specific IgE at the surface of tissue mast cells and induce their degranulation. Evidence for the validity of this concept to diagnose food allergies in dogs and cats is limited, however. Our objectives were to study the recognition of standard and variably hydrolyzed poultry extracts by sera from dogs and cats with elevated chicken-specific serum IgE...
August 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28815863/decoding-fmri-events-in-sensorimotor-motor-network-using-sparse-paradigm-free-mapping-and-activation-likelihood-estimates
#3
Francisca M Tan, César Caballero-Gaudes, Karen J Mullinger, Siu-Yeung Cho, Yaping Zhang, Ian L Dryden, Susan T Francis, Penny A Gowland
Most functional MRI (fMRI) studies map task-driven brain activity using a block or event-related paradigm. Sparse paradigm free mapping (SPFM) can detect the onset and spatial distribution of BOLD events in the brain without prior timing information, but relating the detected events to brain function remains a challenge. In this study, we developed a decoding method for SPFM using a coordinate-based meta-analysis method of activation likelihood estimation (ALE). We defined meta-maps of statistically significant ALE values that correspond to types of events and calculated a summation overlap between the normalized meta-maps and SPFM maps...
August 16, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28807814/development-of-a-chromosomal-microarray-test-for-the-detection-of-abnormalities-in-formalin-fixed-paraffin-embedded-products-of-conception-specimens
#4
Troy J Gliem, Umut Aypar
Testing the products of conception (POC) provides information regarding the cause of fetal loss, and helps determine the recurrence risk for future losses and chromosome abnormalities in subsequent pregnancies. Historically, the Mayo Clinic Cytogenetics Laboratory performed targeted fluorescent in situ hybridization (FISH) testing to identify aneuploidy of only certain chromosomes in formalin-fixed, paraffin-embedded (FFPE) POC samples. Chromosomal microarray (CMA) studies utilizing the Affymetrix OncoScan™ FFPE Assay can detect copy number changes across the genome...
August 11, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28796000/genomic-analysis-of-pigmented-epithelioid-melanocytomas-reveals-recurrent-alterations-in-prkar1a-and-prkca-genes
#5
Jarish N Cohen, Nancy M Joseph, Jeffrey P North, Courtney Onodera, Artur Zembowicz, Philip E LeBoit
Pigmented epithelioid melanocytoma (PEM) is a rare cutaneous melanocytic tumor first described as epithelioid blue nevus in patients with the Carney Complex (CC). PEM was among the first established examples of an intermediate class of melanocytic tumors, including atypical Spitz tumors, with frequent metastasis to lymph nodes but only rare extranodal spread. Sporadic and CC-associated PEM are essentially histologically indistinguishable. A subset of PEM shows loss of cytoplasmic expression of the protein kinase A regulatory subunit alpha (PRKAR1A), a tumor suppressor gene mutated in 70% of families with CC...
August 8, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28793881/patients-preferences-for-involvement-in-the-decision-making-process-for-treating-diabetic-retinopathy
#6
Lydia Marahrens, Raimar Kern, Tjalf Ziemssen, Andreas Fritsche, Peter Martus, Focke Ziemssen, Daniel Roeck
BACKGROUND: To assess factors associated with the preferred role of the attending ophthalmologist in the decision-making processes before treating diabetic retinopathy (DR). METHODS: Cross-sectional study of 810 adults attending secondary diabetes care centers (NCT02311504). Diabetes patients were classified using a validated questionnaire in an ophthalmologist-dominant decision-making (ODM), shared decision-making (SDM) and patient-dominant decision-making (PDM) style...
August 9, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28779895/whole-cell-bioreporters-and-risk-assessment-of-environmental-pollution-a-proof-of-concept-study-using-lead
#7
Xiaokai Zhang, Boqiang Qin, Jianming Deng, Mona Wells
As the world burden of environmental contamination increases, it is of the utmost importance to develop streamlined approaches to environmental risk assessment in order to prioritize mitigation measures. Whole-cell biosensors or bioreporters and speciation modeling have both become of increasing interest to determine the bioavailability of pollutants, as bioavailability is increasingly in use as an indicator of risk. Herein, we examine whether bioreporter results are able to reflect expectations based on chemical reactivity and speciation modeling, with the hope to extend the research into a wider framework of risk assessment...
August 2, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28777743/origami-based-earthworm-like-locomotion-robots
#8
Hongbin Fang, Yetong Zhang, Kon-Well Wang
Inspired by the morphology characteristics of the earthworms and the excellent deformability of origami structures, this research creates a novel earthworm-like locomotion robot through exploiting the origami techniques. In this innovation, appropriate actuation mechanisms are incorporated with origami ball structures into the earthworm-like robot 'body', and the earthworm's locomotion mechanism is mim-icked to develop a gait generator as the robot 'centralized controller'. The origami ball, which is a peri-odic repetition of waterbomb units, could output significant bidirectional (axial and radial) deformations in an antagonistic way similar as the earthworm's body segment...
August 4, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28777693/beyond-descriptive-neurology-broca-cerebral-hemodynamics-and-cortical-function
#9
Richard Leblanc
Pierre-Paul Broca's studies in neurobiology remain of interest. I review a previously neglected aspect of Broca's work in which he presages the use of modern scanning techniques. Broca's goal was to correlate cerebral metabolism to regional cerebral blood flow (CBF) using a novel method, to which he referred as cerebral thermometry. Broca attempted to measure changes in temperatures from the ischemic area and across the watershed regions during a stroke, and the increased CBF produced by performing a cognitive task such as reading aloud...
August 4, 2017: Journal of the History of the Neurosciences
https://www.readbyqxmd.com/read/28776962/simultaneous-multiple-ms-binding-assays-addressing-d%C3%A2-and-d%C3%A2-dopamine-receptors
#10
Marion Schuller, Georg Höfner, Klaus Theodor Wanner
MS Binding Assays represent a label-free alternative to radioligand binding assays. They provide basically the same capabilities as the latter, however, employ a nonlabelled reporter ligand instead of a radioligand. In contrast to radioligand binding assays, MS Binding Assays offer - due to the selectivity of mass spectrometric detection - basically the opportunity to monitor binding of different reporter ligands towards different targets simultaneously. The present study shows a proof of concept for this strategy as exemplified for MS Binding Assays addressing selectively D₁ and D₂ Dopamine receptors in a single binding experiment...
August 4, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28774735/an-autonomous-automated-and-mobile-device-to-concurrently-assess-several-cognitive-functions-in-group-living-non-human-primates
#11
Fizet Jonas, Rimele Adam, Pebayle Thierry, Cassel Jean-Christophe, Kelche Christian, Meunier Hélène
Research methods in cognitive neuroscience using non-human primates have undergone notable changes over the last decades. Recently, several research groups have described freely accessible devices equipped with a touchscreen interface. Two characteristics of such systems are of particular interest: some apparatuses include automated identification of subjects, while others are mobile. Here, we designed, tested and validated an experimental system that, for the first time, combine automatization and mobility...
July 31, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28767375/a-trust-model-for-ubiquitous-healthcare-environment-on-the-basis-of-adaptable-fuzzy-probabilistic-inference-system
#12
Georgia Athanasiou, George C Anastasopoulos, Eleni Tiritidou, Dimitrios Lymberopoulos
Trust is considered to be a determinant on psychologist selection which can ensure patient satisfaction. Hence, trust concept is essential to be introduced into Ubiquitous Healthcare (UH) environment oriented on patients with anxiety disorders. This is accomplished by Trust Model estimating psychologists' trustworthiness, a priory to service delivery, with the use of patient's and his/her acquaintances testimonies, i.e. Personal Interaction Experience (PIE) and Reputation (R). In this paper, Trust Model is proposed to be materialized via an Adaptable Cloud Inference System (ACIS) that performs Trust Value (TV) estimation...
July 28, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28766359/best-practices-in-performing-flow-cytometry-in-a-regulated-environment-feedback-from-experience-within-the-european-bioanalysis-forum
#13
Barry van der Strate, Robin Longdin, Marie Geerlings, Nora Bachmayer, Maria Cavallin, Virginia Litwin, Minesh Patel, Wilfried Passe-Coutrin, Corinna Schoelch, Arjen Companjen, Marianne Scheel Fjording
Flow cytometry is a powerful tool that can be used for the support of (pre)clinical studies. Although various white papers are available that describe the set-up and validation of the instrumentation (the flow cytometer) and validation of flow cytometry methods, to date no guidelines exist that address the requirements for performing flow cytometry in a regulated environment. In this manuscript, the European Bioanalysis Forum presents additional practice guidance on the use of flow cytometry in the support of drug development programs and addresses areas that are not covered in the previous publications...
August 2, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28763220/time-dependent-double-hybrid-density-functionals-with-spin-component-and-spin-opposite-scaling
#14
Tobias Schwabe, Lars Goerigk
For the first time, we combine time-dependent double-hybrid density functional approximations (TD-DHDFAs) for the calculation of electronic excitation energies with the concepts of spin-component and spin-opposite scaling (SCS/SOS) of electron-pair contributions to their nonlocal correlation components. Different flavors of this idea, ranging from standard SCS parameters to fully fitted parameter sets, are presented and tested on six different parent DHDFAs. For cross-validation, we assess those methods on three benchmark sets that cover small- to medium-sized chromophores (up to 78 atoms) and different excitation types...
August 16, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28760604/application-of-quality-by-design-concept-to-develop-a-dual-gradient-elution-stability-indicating-method-for-cloxacillin-forced-degradation-studies-using-combined-mixture-process-variable-models
#15
Xia Zhang, Changqin Hu
Penicillins are typical of complex ionic samples which likely contain large number of degradation-related impurities (DRIs) with different polarities and charge properties. It is often a challenge to develop selective and robust high performance liquid chromatography (HPLC) methods for the efficient separation of all DRIs. In this study, an analytical quality by design (AQbD) approach was proposed for stability-indicating method development of cloxacillin. The structures, retention and UV characteristics rules of penicillins and their impurities were summarized and served as useful prior knowledge...
July 22, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28758714/tiered-electron-anions-in-multiple-voids-of-lascsi-and-their-applications-to-ammonia-synthesis
#16
Jiazhen Wu, Yutong Gong, Takeshi Inoshita, Daniel C Fredrickson, Junjie Wang, Yangfan Lu, Masaaki Kitano, Hideo Hosono
Electrides-compounds in which electrons localized in interstitial spaces periodically serve as anions-have attracted broad attention for their exotic properties, such as extraordinary electron-donating ability. In our efforts to expand this small family of phases, LaScSi emerges as a promising candidate. Its electron count is 2e(-) f.u.(-1) in excess of that expected from the Zintl concept, while its structure offers interstitial spaces that can accommodate these extra electrons. Herein, this potential is explored through density functional theory (DFT) calculations and property measurements on LaScSi...
July 31, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28744319/-177-lu-pentixather-comprehensive-preclinical-characterization-of-a-first-cxcr4-directed-endoradiotherapeutic-agent
#17
Margret Schottelius, Theresa Osl, Andreas Poschenrieder, Frauke Hoffmann, Seval Beykan, Heribert Hänscheid, Andreas Schirbel, Andreas K Buck, Saskia Kropf, Markus Schwaiger, Ulrich Keller, Michael Lassmann, Hans-Jürgen Wester
Purpose: Based on the clinical relevance of the chemokine receptor 4 (CXCR4) as a molecular target in cancer and on the success of [(68)Ga]pentixafor as an imaging probe for high-contrast visualization of CXCR4-expression, the spectrum of clinical CXCR4-targeting was expanded towards peptide receptor radionuclide therapy (PRRT) by the development of [(177)Lu]pentixather. Experimental design: CXCR4 affinity, binding specificity, hCXCR4 selectivity and internalization efficiency of [(177)Lu]pentixather were evaluated using different human and murine cancer cell lines...
2017: Theranostics
https://www.readbyqxmd.com/read/28739652/in-hospital-quality-of-care-measures-for-pediatric-sepsis-syndrome
#18
Folafoluwa O Odetola, Gary Freed, Caroline Shevrin, Brian Madden, Julie McCormick, Kevin Dombkowski
BACKGROUND AND OBJECTIVES: Sepsis syndrome, comprising sepsis, severe sepsis, and septic shock, is a leading cause of child mortality and morbidity, for which the delivery of time-sensitive care leads to improved survival. We aimed to describe the development and testing of quality measures for in-hospital care of pediatric sepsis syndrome. METHODS: Seven measures of quality of care for children hospitalized with sepsis syndrome were developed by using an iterative process including literature review, development of concepts and candidate measures, and selection of measures for feasibility and importance by 2 panels of experts...
July 24, 2017: Pediatrics
https://www.readbyqxmd.com/read/28734207/in-silico-designing-of-therapeutic-protein-enriched-with-branched-chain-amino-acids-for-the-dietary-treatment-of-chronic-liver-disease
#19
Sunil L, Prasanna Vasu
Leucine, isoleucine, and valine are three essential branched-chain amino acids (BCAA) account for 40-45% of total essential amino acids. BCAA stimulates protein synthesis primarily in skeletal muscles, and it can directly transport to circulatory blood stream bypassing the liver. Hence, a protein enriched with BCAA is an important therapeutic target for the dietary treatment of chronic liver disease. The present study is to design a synthetic protein enriched with BCAA and the challenge is to maximize the BCAA content, keeping the balanced ratio of leucine, isoleucine, valine - 2: 1: 1...
July 12, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28729900/unravelling-functional-neurology-a-scoping-review-of-theories-and-clinical-applications-in-a-context-of-chiropractic-manual-therapy
#20
REVIEW
Anne-Laure Meyer, Amanda Meyer, Sarah Etherington, Charlotte Leboeuf-Yde
BACKGROUND: Functional Neurology (FN), a seemingly attractive treatment approach used by some chiropractors, proposes to have an effect on a multitude of conditions but some of its concepts are controversial. OBJECTIVES AND DESIGN: A scoping review was performed to describe, in the context of chiropractic manual therapy, 1) the FN theories, and 2) its clinical applications (i.e. its indications, examination procedures, treatment modalities, treatment plans, and clinical outcomes) using four sources: i) one key textbook, ii) the scientific peer-reviewed literature, iii) websites from chiropractors using FN, and iv) semi-structured interviews of chiropractors using FN...
2017: Chiropractic & Manual Therapies
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