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https://www.readbyqxmd.com/read/29151120/biomechanical-stress-in-myocardial-infarctions-can-endothelin-1-and-growth-differentiation-factor-15-serve-as-immunohistochemical-markers
#1
M Falk, R Huhn, F Behmenburg, St Ritz-Timme, F Mayer
Myocardial infarctions go along with biomechanical stress, i.e. stretching of muscle fibres, and the expression of certain marker molecules. We tested if two of those markers, endothelin-1 (ET-1) and growth differentiation factor 15 (GDF-15), can be used as immunohistochemical markers for myocardial ischaemia/infarctions. The study included experiments with an animal model, the isolated perfused Langendorff heart, as well as the investigation of human tissue samples drawn during autopsies. The overall picture of our results showed that GDF-15 is very sensitive and expressed very fast, not only as a consequence of ischaemia/infarctions, but also under other circumstances...
November 18, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29151119/whole-body-magnetic-resonance-imaging-for-detection-of-skeletal-metastases-in-children-and-young-people-with-primary-solid-tumors-systematic-review
#2
A M Smets, E E Deurloo, T J E Slager, J Stoker, S Bipat
BACKGROUND: Many solid neoplasms have a propensity for osteomedullary metastases of which detection is important for staging and subsequent treatment. Whole-body magnetic resonance imaging (WB-MRI) has been shown to accurately detect osteomedullary metastases in adults, but these findings cannot be unconditionally extrapolated to staging of children with malignant solid tumors. OBJECTIVE: To conduct a literature review on the sensitivity of WB-MRI for detecting skeletal metastases in children with solid tumors...
November 18, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29151040/meningoencephalitis-in-a-royal-marine-after-skinning-reindeer-in-norway
#3
Christopher A Pollard, D S Burns, B Ho, A McD Johnston
Meningoencephalitis presenting in service personnel overseas may present a diagnostic challenge due to the broad range of potential differential diagnosis as well as the requirement for rapid assessment and treatment. A 25-year-old Royal Marine was evacuated to the Royal Centre for Defence Medicine in Birmingham, UK, with a history of rash consistent with erythema chronicum migrans, a seizure, and lymphocytic pleocytosis after skinning reindeer in Norway. Neuroborreliosis was suspected and empirical antibiotics were administered...
November 18, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29151019/bcrocsurface-an-r-package-for-correcting-verification-bias-in-estimation-of-the-roc-surface-and-its-volume-for-continuous-diagnostic-tests
#4
Khanh To Duc
BACKGROUND: Receiver operating characteristic (ROC) surface analysis is usually employed to assess the accuracy of a medical diagnostic test when there are three ordered disease status (e.g. non-diseased, intermediate, diseased). In practice, verification bias can occur due to missingness of the true disease status and can lead to a distorted conclusion on diagnostic accuracy. In such situations, bias-corrected inference tools are required. RESULTS: This paper introduce an R package, named bcROCsurface, which provides utility functions for verification bias-corrected ROC surface analysis...
November 18, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29150989/an-evaluation-of-the-sentifit-270-analyser-for-quantitation-of-faecal-haemoglobin-in-the-investigation-of-patients-with-suspected-colorectal-cancer
#5
Josep M Auge, Cristina Rodriguez, Oihana Espanyol, Liseth Rivero, Silvia Sandalinas, Jaume Grau, Wladimiro Jimenez, Antoni Castells
BACKGROUND: An evaluation of SENTiFIT® 270 (Sentinel Diagnostics, Italy; Sysmex, Spain) analyser for the quantitation of faecal haemoglobin (f-Hb) was performed. METHODS: The analytical imprecision, linearity, carry over and f-Hb stability were determined. Evaluation of the diagnostic accuracy was performed on 487 patients. RESULTS: Within-run and between-run imprecision ranged 1.7%-5.1% and 3.8%-6.2%, respectively. Linearity studies revealed a mean recovery of 101...
November 18, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29150726/tspo-imaging-using-the-novel-pet-ligand-18-f-ge-180-quantification-approaches-in-patients-with-multiple-sclerosis
#6
Lena Vomacka, Nathalie Lisa Albert, Simon Lindner, Marcus Unterrainer, Christoph Mahler, Matthias Brendel, Larissa Ermoschkin, Astrid Gosewisch, Anika Brunegraf, Christopher Buckley, Tania Kümpfel, Rainer Rupprecht, Sibylle Ziegler, Martin Kerschensteiner, Peter Bartenstein, Guido Böning
BACKGROUND: PET ligands targeting the translocator protein (TSPO) represent promising tools to visualise neuroinflammation. Here, we analysed parameters obtained in dynamic and static PET images using the novel TSPO ligand [(18)F]GE-180 in patients with relapsing remitting multiple sclerosis (RRMS) and an approach for semi-quantitative assessment of this disease in clinical routine. Seventeen dynamic [(18)F]GE-180 PET scans of RRMS patients were evaluated (90 min). A pseudo-reference region (PRR) was defined after identification of the least disease-affected brain area by voxel-based comparison with six healthy controls (HC) and upon exclusion of voxels suspected of being affected in static 60-90 min p...
October 26, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/29150710/computed-tomography-perfusion-is-a%C3%A2-useful-adjunct-to-computed-tomography-angiography-in-the-diagnosis-of-brain-death
#7
M Sawicki, J Sołek-Pastuszka, K Chamier-Ciemińska, A Walecka, J Walecki, R Bohatyrewicz
BACKGROUND: In the diagnosis of brain death (BD), computed tomography angiography (CTA) results in some cases show intracranial filling, leading to diagnostic confusion. Because cerebral circulatory arrest commences at the capillary level, we hypothesized that computed tomography perfusion (CTP) would be a more sensitive approach than CTA; therefore, the aim of the study was to compare the sensitivities of CTP and CTA in the diagnosis of BD. MATERIAL AND METHODS: Whole brain CTP was performed in patients in the intensive care unit diagnosed with BD and CTA was derived from CTP datasets...
November 17, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29150480/effect-of-time-to-diagnostic-testing-for-breast-cervical-and-colorectal-cancer-screening-abnormalities-on-screening-efficacy-a-modeling-study
#8
Carolyn M Rutter, Jane J Kim, Reinier G S Meester, Brian L Sprague, Emily A Burger, Ann G Zauber, Mehmet Ali Ergun, Nicole G Campos, Chyke A Doubeni, Amy Trentham-Dietz, Stephen Sy, Oguz Alagoz, Natasha Stout, Iris Lansdorp-Vogelaar, Douglas A Corley, Anna Tosteson
BACKGROUND: Patients who receive an abnormal cancer screening result require follow-up for diagnostic testing, but the time to follow-up varies across patients and practices. METHODS: We used a simulation study to estimate the change in lifetime screening benefits when time to follow-up for breast, cervical, and colorectal cancers was increased. Estimates were based on four independently developed microsimulation models that each simulated the life course of adults eligible for breast (women aged 50-74 years), cervical (women aged 21-65 years), or colorectal (adults aged 50-75 years) cancer screening...
November 17, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29150458/diagnostic-accuracy-of-neonatal-assessment-for-gestational-age-determination-a-systematic-review
#9
REVIEW
Anne Cc Lee, Pratik Panchal, Lian Folger, Hilary Whelan, Rachel Whelan, Bernard Rosner, Hannah Blencowe, Joy E Lawn
CONTEXT: An estimated 15 million neonates are born preterm annually. However, in low- and middle-income countries, the dating of pregnancy is frequently unreliable or unknown. OBJECTIVE: To conduct a systematic literature review and meta-analysis to determine the diagnostic accuracy of neonatal assessments to estimate gestational age (GA). DATA SOURCES: PubMed, Embase, Cochrane, Web of Science, POPLINE, and World Health Organization library databases...
November 17, 2017: Pediatrics
https://www.readbyqxmd.com/read/29150390/pulmonary-embolism-rule-out-criteria-perc-rule-in-european-patients-with-low-implicit-clinical-probability-percepic-a-multicentre-prospective-observational-study
#10
Andrea Penaloza, Caroline Soulié, Thomas Moumneh, Quentin Delmez, Alexandre Ghuysen, Dominique El Kouri, Christian Brice, Nicolas S Marjanovic, Jacques Bouget, Fares Moustafa, Albert Trinh-Duc, Catherine Le Gall, Lionel Imsaad, Jean-Marie Chrétien, Béatrice Gable, Philippe Girard, Olivier Sanchez, Jeannot Schmidt, Grégoire Le Gal, Guy Meyer, Nicolas Delvau, Pierre-Marie Roy
BACKGROUND: The ability of the pulmonary embolism rule-out criteria (PERC) to exclude pulmonary embolism without further testing remains debated outside the USA, especially in the population with suspected pulmonary embolism who have a high prevalence of the condition. Our main objective was to prospectively assess the predictive value of negative PERC to rule out pulmonary embolism among European patients with low implicit clinical probability. METHODS: We did a multicentre, prospective, observational study in 12 emergency departments in France and Belgium...
November 14, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29150383/the-diagnostic-clinical-value-of-thumb-metacarpal-grind-pressure-shear-flexion-and-extension-tests-for-carpometacarpal-osteoarthritis
#11
Yaron Sela, Jodi Seftchick, William L Wang, Mark E Baratz
STUDY DESIGN: Clinical measurement. INTRODUCTION: Common provocative maneuvers to differentiate thumb carpometacarpal (CMC) osteoarthritis from other sources of pain are the grind, metacarpal (MC) flexion, and MC extension tests. A maneuver known as the pressure-shear test is described here. PURPOSE OF THE STUDY: To compare the diagnostic value of the grind, metacarpal flexion, metacarpal extension, and pressure-shear tests for CMC osteoarthritis of the thumb...
November 14, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29150323/screening-of-patient-blood-samples-for-babesiosis-using-enzymatic-assays
#12
Shekerah Primus, Lavoisier Akoolo, Samantha Schlachter, Nikhat Parveen
Human babesiosis is an emerging tick-borne disease in the United States and Europe. Transmitted by Ixodes ticks, the causative agent Babesia microti is an intraerythrocytic parasite that causes mild to deadly disease. Transmission of B. microti can also occur by transfusion of infected blood and blood products resulting in transfusion-transmitted babesiosis (TTB), which carries a high risk of fatality. To effectively manage this rise in B. microti infections, better screening tools are needed, which require minimal manipulation of the samples before testing...
November 12, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29150249/accuracy-of-the-cobas-egfr-mutation-assay-in-non-small-cell-lung-cancer-compared-with-three-laboratory-developed-tests
#13
Haruhiko Nakamura, Hirotaka Koizumi, Hiroki Sakai, Hiroyuki Kimura, Tomoyuki Miyazawa, Hideki Marushima, Hisashi Saji, Masayuki Takagi
BACKGROUND: The reliability of the cobas EGFR assay to detect epidermal growth factor receptor (EGFR) mutations in non-small-cell lung cancer (NSCLC) as an in vitro diagnostic test was compared with 3 laboratory-developed tests (LDTs). MATERIALS AND METHODS: After screening for EGFR mutations using formalin-fixed-paraffin-embedded NSCLC tissue sections using the cobas EGFR assay, 151 samples were further tested with 3 LDTs; the peptide nucleic acid-locked nucleic acid polymerase chain reaction (PCR) clamp, PCR invader, and Cycleave assays...
October 28, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/29150231/diagnosis-of-hyperferritinemia-in-routine-clinical-practice
#14
Bernard Lorcerie, Sylvain Audia, Maxime Samson, Aurélie Millière, Nicolas Falvo, Vanessa Leguy-Seguin, Sabine Berthier, Bernard Bonnotte
The discovery of hyperferritinemia is often fortuitous, revealed in results from a laboratory screening or follow-up test. The aim of the diagnostic procedure is therefore to identify its cause and to identify or rule out hepatic iron overload, in a three-stage process. In the first step, clinical findings and several simple laboratory tests are sufficient to detect four of the most frequent causes of high ferritin concentrations: alcoholism, inflammatory syndrome, cytolysis, and metabolic syndrome. None of these causes is associated with substantial hepatic iron overload...
November 14, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29150184/-glutamate-dehydrogenase-its-diagnostic-value-in-clostridioides-difficile-diarrhea
#15
Daniela Vaustat, Raquel Rollet
Clostridioides difficile is the main etiological agent of diarrhea associated with health care, it produces toxins and glutamate dehydrogenase (GDH), an enzyme that is highly conserved in this species. Rapid diagnosis and effective treatment produce prompt improvement of the patient and subsequent control of the microorganism spread. There are several techniques whose results are interpreted in the context of algorithms. However, the optimal diagnostic method is yet unknown. The performance of GDH as a screening test for the diagnosis of C...
November 14, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29150129/diagnostic-accuracy-of-4-intraoral-radiographic-techniques-for-misfit-detection-at-the-implant-abutment-joint
#16
Pollyana Darós, Vinícius Cavalcanti Carneiro, Amanda Pasolini Siqueira, Sergio Lins de-Azevedo-Vaz
STATEMENT OF PROBLEM: A misfit or gap at the implant-abutment joint (IAJ) requires detection as it may compromise the health of the peri-implant tissue. However, which radiographic technique provides the most orthogonal relationship between the central beam and the implant/image receptor is unclear. PURPOSE: The purpose of this in vitro study was to evaluate the diagnostic accuracy of 4 intraoral radiographic techniques on misfit detection at the IAJ. MATERIAL AND METHODS: Twenty implants were placed in polyamide jaws, and customized dental implant abutments with a metal collar were installed...
November 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29149952/financial-impact-of-incidental-radiologic-findings-during-living-kidney-donor-evaluation
#17
A Mutneja, L Saling, M Yano, A Vijayan
Living kidney donor (LKD) transplantation is an important alternative for the end-stage renal disease population and is preferred due to superior outcomes when compared with dialysis or deceased donor transplantation. LKD evaluation includes a computed tomography angiogram (CTA) for assessment of renal and renovascular anatomy. Incidental nonrenal findings are frequently noted during the CTAs, and these may have variable clinical significance. These incidental findings lead to further testing, procedures, and referrals, which incur additional cost...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149908/exosomal-micrornas-as-potential-circulating-biomarkers-in-gastrointestinal-tract-cancers-a-systematic-review-protocol
#18
Elmira Gheytanchi, Zahra Madjd, Leila Janani, Arezoo Rasti, Roya Ghods, Fatemeh Atyabi, Mohammad Hossein Asadi Lari, Sadegh Babashah
BACKGROUND: Metastasis is the most frequent type of recurrence in gastrointestinal (GI) cancers, and there is an emerging potential for new diagnostic and therapeutic approaches, especially in the cases of metastatic GI carcinomas. The expression profiles of circulating exosomal microRNAs are of particular interest as novel non-invasive diagnostic and prognostic biomarkers for improved detection of GI cancers in body fluids, especially in the serum of patients with recurrent cancers. The aim of this study is to systematically review primary studies and identify the miRNA profiles of serum exosomes of GI cancers...
November 17, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/29149893/association-between-severity-of-illicit-drug-dependence-and-quality-of-life-in-a-psychosocial-care-center-in-brazil-cross-sectional-study
#19
Selva Rios Campêlo, Maria Alves Barbosa, Danilo Rocha Dias, Camila Cardoso Caixeta, Cláudio Rodrigues Leles, Celmo Celeno Porto
BACKGROUND: Quality of life must be one of the main purposes for the treatment of drug users, requiring a better understanding of the association between the quality of life and the severity of dependency. This study aimed to investigate the correlation between severity of substance use in various areas of human functioning and quality of life of illicit drug users in a psychosocial care center for alcohol and drugs. METHODS: This cross-sectional study included 60 participants - illicit drug users - treated at a psychosocial care center for alcohol and drugs...
November 17, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/29149830/diagnostic-devices-for-circulating-biomarkers-detection-and-quantification
#20
Chiara Bedin, Sara Crotti, Ennio Tasciotti, Marco Agostini
Nowadays, fast and sensitive methods for biomarkers detection exist, but the performance of most of them still rely in centralized laboratory testing. The development of small, fast and simple to use medical device that can help in making diagnosis accurate and with low-invasiveness is now a major challenge for nanotechnology. To develop diagnostic devices for cancer detection, nanomaterials-based systems have significant advantages over current conventional approaches in terms of simplicity, sensitivity, specificity and rapidity...
November 16, 2017: Current Medicinal Chemistry
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