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Component resolved diagnostics

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https://www.readbyqxmd.com/read/28429066/atmospheric-pressure-maldi-for-the-noninvasive-characterization-of-carbonaceous-ink-from-renaissance-documents
#1
Giuseppe Grasso, Marzia Calcagno, Alessandro Rapisarda, Roberta D'Agata, Giuseppe Spoto
The analytical methods that are usually applied to determine the compositions of inks from ancient manuscripts usually focus on inorganic components, as in the case of iron gall ink. In this work, we describe the use of atmospheric pressure/matrix-assisted laser desorption ionization-mass spectrometry (AP/MALDI-MS) as a spatially resolved analytical technique for the study of the organic carbonaceous components of inks used in handwritten parts of ancient books for the first time. Large polycyclic aromatic hydrocarbons (L-PAH) were identified in situ in the ink of XVII century handwritten documents...
April 21, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28428549/low-noise-time-resolved-optical-sensing-of-electromagnetic-pulses-from-petawatt-laser-matter-interactions
#2
T S Robinson, F Consoli, S Giltrap, S J Eardley, G S Hicks, E J Ditter, O Ettlinger, N H Stuart, M Notley, R De Angelis, Z Najmudin, R A Smith
We report on the development and deployment of an optical diagnostic for single-shot measurement of the electric-field components of electromagnetic pulses from high-intensity laser-matter interactions in a high-noise environment. The electro-optic Pockels effect in KDP crystals was used to measure transient electric fields using a geometry easily modifiable for magnetic field detection via Faraday rotation. Using dielectric sensors and an optical fibre-based readout ensures minimal field perturbations compared to conductive probes and greatly limits unwanted electrical pickup between probe and recording system...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423454/uk-neqas-survey-of-allergen-component-testing-across-the-united-kingdom-and-other-european-countries
#3
R Saleem, C Keymer, D Patel, W Egner, A W Rowbottom
The clinical utility of molecular diagnostic approaches in allergy investigation is being recognized increasingly to play a significant role in the management of allergic patients. Determining the sensitization pattern, which is best achieved through the use of component resolved diagnostics (CRD), allows effective risk stratification, appropriate treatment and patient selection for immunotherapy. In order to assess the diagnostic service provisions for in-vitro allergy testing across Europe, a survey was carried out via the total immunoglobulin (Ig)E and specific IgE external quality assurance schemes run by UK National External Quality Assessment Service (NEQAS) Immunology, Immunochemistry and Allergy...
April 19, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28368217/long-acting-insulin-allergy-in-a-diabetic-child
#4
Carla Mastrorilli, Laura Rizzuti, Antonina Marta Cangelosi, Brunella Iovane, Giovanni Chiari, Carlo Caffarelli
Insulin allergy has been uncommon since the introduction of human recombinant insulin preparations; the prevalence is 2.4%. Insulin injection could elicit immediate reactions, which are usually induced by an IgE-mediated mechanism, within the first hour after drug administration. In the present study, we describe the case of a child who experienced immediate urticaria after long-acting insulin injection. A 9-year-old girl affected by type I diabetes mellitus referred a history of three episodes of urticaria 30 min after insulin subcutaneous injection...
April 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28364406/component-resolved-diagnostics-in-thai-children-with-cow-s-milk-and-egg-allergy
#5
Wipa Jessadapakorn, Pasuree Sangsupawanich, Natthakul Wootipoom, Oranart Suddeaugrai, Araya Yuenyongviwat
BACKGROUND AND OBJECTIVE: Component-resolved diagnostics (CRD) have garnered a lot of attention in recent years in the diagnosis of food allergies. We aimed to investigate sensitization against cow's milk and egg white components, and to study the clinical usefulness of serum food-specific immunoglobulin E (sIgE) to cow's milk and egg white components in Thai children with cow's milk and egg allergies. METHOD: Children with IgE-mediated cow's milk and/or egg allergy were enrolled...
April 1, 2017: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/28351786/association-of-clinical-reactivity-with-sensitization-to-allergen-components-in-multifood-allergic-children
#6
Sandra Andorf, Magnus P Borres, Whitney Block, Dana Tupa, Jennifer B Bollyky, Vanitha Sampath, Arnon Elizur, Jonas Lidholm, Joseph E Jones, Stephen J Galli, Rebecca S Chinthrajah, Kari C Nadeau
BACKGROUND: Thirty percent of children with food allergies have multiple simultaneous allergies; however, the features of these multiple allergies are not well characterized serologically or clinically. OBJECTIVE: We comprehensively evaluated 60 multifood-allergic patients by measuring serum IgE to key allergen components, evaluating clinical histories and medication use, performing skin tests, and conducting double-blind, placebo-controlled food challenges (DBPCFCs)...
March 25, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28346705/performance-of-a-polymer-coated-silicon-microarray-for-simultaneous-detection-of-food-allergen-specific-ige-and-igg4
#7
Steven Sievers, Marina Cretich, Paola Gagni, Birgit Ahrens, Galina Grishina, Hugh Sampson, Bodo Niggemann, Marcella Chiari, Kirsten Beyer
BACKGROUND: Microarray-based component-resolved diagnostics (CRD) has become an accepted tool to detect allergen specific IgE-sensitization towards hundreds of allergens in parallel from one drop of serum. Nevertheless specificity and sensitivity as well as a simultaneous detection of allergen specific IgG4, as a potential parameter for tolerance development, remain to be optimized. OBJECTIVE: We applied the recently introduced silicon chip coated with a functional polymer named copoly(DMA-NAS-MAPS) to the simultaneous detection of food allergen specific IgE and IgG4, and compared it with ImmunoCAP and ImmunoCAP ISAC...
March 27, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28341528/molecular-diagnosis-of-allergy-to-anisakis-simplex-and-gymnorhynchus-gigas-fish-parasites
#8
A Armentia, J Santos, Z Serrano, B Martín, S Martín, J Barrio, S Fernández, M González-Sagrado, F Pineda, R Palacios
BACKGROUND: There has been an increase in the prevalence of hypersensitivity to Anisakis simplex. There are fish parasites other than Anisakis simplex whose allergenicity has not yet been studied. OBJECTIVE: To assess IgE hypersensitivity caused by fish parasite allergens in patients with gastro-allergic symptoms after consumption of fish, shellfish or cephalopods, compared with healthy subjects, pollen allergic individuals and children with digestive symptoms after eating marine food...
March 21, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28285847/japanese-guidelines-for-food-allergy-2017
#9
REVIEW
Motohiro Ebisawa, Komei Ito, Takao Fujisawa
Five years have passed since the Japanese Pediatric Guideline for Food Allergy (JPGFA) was first revised in 2011 from its original version. As many scientific papers related to food allergy have been published during the last 5 years, the second major revision of the JPGFA was carried out in 2016. In this guideline, food allergies are generally classified into four clinical types: (1) neonatal and infantile gastrointestinal allergy, (2) infantile atopic dermatitis associated with food allergy, (3) immediate-type of food allergy (urticaria, anaphylaxis, etc...
April 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28243098/delirium-after-a-traumatic-brain-injury-predictors-and-symptom-patterns
#10
Jutaporn Maneewong, Benchalak Maneeton, Narong Maneeton, Tanat Vaniyapong, Patrinee Traisathit, Natthanidnan Sricharoen, Manit Srisurapanont
BACKGROUND: Delirium in traumatic brain injury (TBI) is common, may be predictable, and has a multifaceted symptom complex. This study aimed to examine: 1) the sum score of Glasgow Coma Scale (GCS) and if its component scores could predict delirium in TBI patients, and 2) the prominent symptoms and their courses over the first days after TBI. METHODS: TBI patients were recruited from neurosurgical ward inpatients. All participants were hospitalized within 24 hours after their TBI...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28184046/investigating-the-accuracy-risk-impact-and-cost-effectiveness-of-component-resolved-diagnostic-test-for-food-allergy-a-systematic-review-protocol
#11
Javier Flores Kim, Bright I Nwaru, Nicola McCleary, Andrew Stoddart, Aziz Sheikh
No abstract text is available yet for this article.
December 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28137276/towards-standardization-of-next-generation-sequencing-of-ffpe-samples-for-clinical-oncology-intrinsic-obstacles-and-possible-solutions
#12
Maxim Ivanov, Konstantin Laktionov, Valery Breder, Polina Chernenko, Ekaterina Novikova, Ekaterina Telysheva, Sergey Musienko, Ancha Baranova, Vladislav Mileyko
BACKGROUND: Next generation sequencing has a potential to revolutionize the management of cancer patients within the framework of precision oncology. Nevertheless, lack of standardization decelerated entering of the technology into the clinical testing space. Here we dissected a number of common problems of NGS diagnostics in oncology and introduced ways they can be resolved. METHODS: DNA was extracted from 26 formalin fixed paraffin embedded (FFPE) specimens and processed with the TrueSeq Amplicon Cancer Panel (Illumina Inc, San Diego, California) targeting 48 cancer-related genes and sequenced in single run...
January 31, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28101431/non-invasive-terahertz-imaging-of-tissue-water-content-for-flap-viability-assessment
#13
Neha Bajwa, Joshua Au, Reza Jarrahy, Shijun Sung, Michael C Fishbein, David Riopelle, Daniel B Ennis, Tara Aghaloo, Maie A St John, Warren S Grundfest, Zachary D Taylor
Accurate and early prediction of tissue viability is the most significant determinant of tissue flap survival in reconstructive surgery. Perturbation in tissue water content (TWC) is a generic component of the tissue response to such surgeries, and, therefore, may be an important diagnostic target for assessing the extent of flap viability in vivo. We have previously shown that reflective terahertz (THz) imaging, a non-ionizing technique, can generate spatially resolved maps of TWC in superficial soft tissues, such as cornea and wounds, on the order of minutes...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28092637/non-invasive-classification-of-breast-microcalcifications-using-x-ray-coherent-scatter-computed-tomography
#14
Bahaa Ghammraoui, Lucretiu M Popescu
We investigate the use of energy dispersive x-ray coherent scatter computed tomography (ED-CSCT) as a non-invasive diagnostic method to differentiate between type I and type II breast calcifications. This approach is sensitive to the differences of composition and internal crystal structure of different types of microcalcifications. The study is carried out by simulating a CSCT system with a scanning pencil beam, considering a polychromatic x-ray source and an energy-resolving photon counting detector. In a first step, the multidimensional angle and energy distributed CSCT data is reduced to the projection-space distributions of only a few components, corresponding to the expected target composition: adipose, glandular tissue, weddellite (calcium oxalate) for type I calcifications, and hydroxyapatite for type II calcifications...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28060371/basaloid-blue-salivary-gland-tumors
#15
Raja R Seethala
Basaloid tumors are a common diagnostic problem in salivary gland pathology. However, delineating each of these tumor types is facilitated by an algorithmic approach incorporated by tumor border and cell types. This approach greatly diminishes the challenge of separating polymorphous low-grade adenocarcinoma (PLGA) from adenoid cystic carcinoma (ACC). Despite the overlap in growth pattern, ACC is biphasic while PLGA is not. More relevant challenges, namely differentiation of the biphasic basaloid neoplasms including: epithelial-myoepithelial carcinoma (EMCA), cellular pleomorphic adenoma (PA), basal cell adenoma (BCA), and basal cell adenocarcinoma (BCAC), are resolved by a combination of morphologic, immunophenotypic, and to a limited extent, molecular features...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28048371/we-g-209-01-digital-radiography
#16
B Schueler
Digital radiography, CT, PET, and MR are complicated imaging modalities which are composed of many hardware and software components. These components work together in a highly coordinated chain of events with the intent to produce high quality images. Acquisition, processing and reconstruction of data must occur in a precise way for optimum image quality to be achieved. Any error or unexpected event in the entire process can produce unwanted pixel intensities in the final images which may contribute to visible image artifacts...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047725/we-g-209-02-ct
#17
J Kofler
Digital radiography, CT, PET, and MR are complicated imaging modalities which are composed of many hardware and software components. These components work together in a highly coordinated chain of events with the intent to produce high quality images. Acquisition, processing and reconstruction of data must occur in a precise way for optimum image quality to be achieved. Any error or unexpected event in the entire process can produce unwanted pixel intensities in the final images which may contribute to visible image artifacts...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047077/we-g-209-03-pet
#18
B Kemp
Digital radiography, CT, PET, and MR are complicated imaging modalities which are composed of many hardware and software components. These components work together in a highly coordinated chain of events with the intent to produce high quality images. Acquisition, processing and reconstruction of data must occur in a precise way for optimum image quality to be achieved. Any error or unexpected event in the entire process can produce unwanted pixel intensities in the final images which may contribute to visible image artifacts...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046416/we-g-209-04-mri
#19
R Pooley
Digital radiography, CT, PET, and MR are complicated imaging modalities which are composed of many hardware and software components. These components work together in a highly coordinated chain of events with the intent to produce high quality images. Acquisition, processing and reconstruction of data must occur in a precise way for optimum image quality to be achieved. Any error or unexpected event in the entire process can produce unwanted pixel intensities in the final images which may contribute to visible image artifacts...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046296/we-g-209-00-identifying-image-artifacts-their-causes-and-how-to-fix-them
#20
Robert Pooley
Digital radiography, CT, PET, and MR are complicated imaging modalities which are composed of many hardware and software components. These components work together in a highly coordinated chain of events with the intent to produce high quality images. Acquisition, processing and reconstruction of data must occur in a precise way for optimum image quality to be achieved. Any error or unexpected event in the entire process can produce unwanted pixel intensities in the final images which may contribute to visible image artifacts...
June 2016: Medical Physics
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