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https://www.readbyqxmd.com/read/29236352/iccs-escca-consensus-guidelines-for-the-clinical-utility-of-testing-for-gpi-anchor-deficient-clones-in-paroxysmal-nocturnal-hemoglobinuria-pnh-and-other-bone-marrow-disorders-part-1
#1
Amy E Dezern, Michael J Borowitz
Paroxysmal nocturnal hemoglobinuria (PNH) arises as a consequence of the non-malignant clonal expansion of one or more hematopoietic stem cells with an acquired somatic mutation of the PIGA gene.(1) Progeny of affected stem cells are deficient in glycosyl phosphatidylinositol-anchored proteins (GPI-APs). This deficiency is readily detected by flow cytometry. Though this seems straightforward, the clinical utility of this testing requires that the ordering clinician understand not only the characteristics of the test, but also the biology of the underlying disease, and the clinical and laboratory manifestations in the individual patient...
December 13, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29236230/gene-patents-in-canada-is-there-a-new-legal-landscape
#2
Katherine L Bonter, Carmela De Luca, Christi J Guerrini
In 2016, the Children's Hospital of Eastern Ontario (CHEO) announced the settlement of its patent lawsuit against US-based Transgenomic, Inc. At issue in the case was CHEO's ability to test for gene mutations associated with long QT syndrome (LQTS) that are described in Transgenomic's patents. CHEO challenged the patents as invalid, and Transgenomic ultimately agreed to license them on a royalty-free basis to CHEO and other healthcare institutions for LQTS testing and research. While widely celebrated in the media, the ethical rhetoric surrounding the settlement has at times obscured the practical and legal context in which it was made and will operate...
December 13, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/29235488/nomogram-for-cirrhosis-in-patients-with-chronic-hepatitis-b-a-simple-self-assessed-scale-for-individual-risk-of-cirrhosis
#3
Zhiqiao Zhang, Jing Li, Peng Wang, Tingshan He, Yanling Ouyang, Yiyan Huang
The aim of this retrospective study was to establish a simple self-assessed scale for individual risk of cirrhosis in patients with chronic hepatitis B. A total of 1808 consecutive patients were enrolled and analyzed. According to the results of multivariate logistic regression analysis, a simple nomogram was calculated for cirrhosis. The area under receiver operating characteristic curves (AUROCs) were calculated to compare the diagnostic accuracy of nomogram with aspartate aminotransferase to platelet ratio index (APRI), fibrosis index based on the four factors (FIB-4), and S index...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29235484/paper-based-mos2-nanosheet-mediated-fret-aptasensor-for-rapid-malaria-diagnosis
#4
Alisha Geldert, Kenry, Chwee Teck Lim
There has been growing interest in the development of paper-based biosensors because their simplicity and low cost are attractive for point-of-care diagnosis, especially in low-resource areas. However, only a limited range of paper materials - primarily chromatography papers - have been incorporated into diagnostics thus far. Here, we investigate the performance of different types of paper in order to develop an aptamer- and MoS2 nanosheet-based sensor relying on fluorescence resonance energy transfer (FRET) to signal the presence of a target protein...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29235242/the-effect-of-an-educational-intervention-based-on-clinical-simulation-on-the-diagnosis-of-rheumatoid-arthritis-and-osteoarthritis
#5
Daniel G Fernández-Ávila, Álvaro J Ruiz, Fabián Gil, Sergio A Mora, Carlos Tobar, Juan M Gutiérrez, Diego Rosselli
OBJECTIVE: The aim of the present study was to evaluate the effectiveness of an educational tool for general physicians, based on rheumatological clinical simulation, for the diagnosis of rheumatoid arthritis and osteoarthritis. METHODS: A randomized clinical study was carried out, in which the physician research subjects were assigned to one of two groups: the experimental group (educational intervention for rheumatoid arthritis with clinical simulation) or the control group (educational intervention for the basic aspects of the diagnosis and treatment of osteoporosis)...
December 13, 2017: Musculoskeletal Care
https://www.readbyqxmd.com/read/29235188/evaluation-of-the-psychometric-properties-of-the-norwegian-screening-test-for-dyslexia
#6
Trude Nergård-Nilssen, Kenneth Eklund
The aim of this study was to develop and investigate the psychometric properties of a screening protocol for Norwegian students in upper secondary school. The protocol was designed to assess skills that are at stake in dyslexia. It was administered to 232 students. In the absence of a "gold standard," comparisons were made between students who reported normal literacy skills (n = 184) and literacy problems (n = 48). Significant group differences were found across all areas. Logistic regression and receiver operating characteristic curve analyses demonstrated good discriminatory power...
December 12, 2017: Dyslexia: the Journal of the British Dyslexia Association
https://www.readbyqxmd.com/read/29235012/implications-of-celiac-disease-among-patients-undergoing-gastric-bypass
#7
Lindsey M Freeman, Andrew T Strong, Gautam Sharma, Suriya Punchai, John H Rodriguez, Donald F Kirby, Matthew Kroh
INTRODUCTION: Bariatric surgery is generally safe and effective, but co-existing malabsorptive processes may increase the risk of complications or nutritional deficiencies. Bariatric surgery has not been well studied in the setting of pre-existing celiac disease. MATERIALS AND METHODS: Patients who underwent Roux-en-Y gastric bypass (RYGB) from January 2002 to December 2015 were retrospectively reviewed for either diagnosis of or serum testing for celiac disease...
December 12, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29234950/the-evolution-of-endometrial-carcinoma-classification-through-application-of-immunohistochemistry-and-molecular-diagnostics-past-present-and-future
#8
REVIEW
Emily A Goebel, August Vidal, Xavier Matias-Guiu, C Blake Gilks
Uterine cancer was first subclassified based on anatomic site, separating those tumours arising from the endometrium from cervical cancers. There was then further subclassification of endometrial cancers based on cell type, and this correlated with the Type I and Type II categories identified through the epidemiological studies of Bokhman, with endometrioid carcinoma corresponding (approximately) to Type I and serous carcinoma to Type II. These histotypes are not clearly separable in practice, however, with considerable interobserver variability in histotype diagnosis, especially for high-grade tumours...
December 12, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29234914/discriminating-mgmt-promoter-methylation-status-in-patients-with-glioblastoma-employing-amide-proton-transfer-weighted-mri-metrics
#9
Shanshan Jiang, Qihong Rui, Yu Wang, Hye-Young Heo, Tianyu Zou, Hao Yu, Yi Zhang, Xianlong Wang, Yongxing Du, Xinrui Wen, Fangyao Chen, Jihong Wang, Charles G Eberhart, Jinyuan Zhou, Zhibo Wen
OBJECTIVES: To explore the feasibility of using amide proton transfer-weighted (APTw) MRI metrics as surrogate biomarkers to identify the O6-methylguanine-DNA methyltransferase (MGMT) promoter methylation status in glioblastoma (GBM). METHODS: Eighteen newly diagnosed GBM patients, who were previously scanned at 3T and had a confirmed MGMT methylation status, were retrospectively analysed. For each case, a histogram analysis in the tumour mass was performed to evaluate several quantitative APTw MRI metrics...
December 12, 2017: European Radiology
https://www.readbyqxmd.com/read/29234806/diagnostic-assessment-of-deep-learning-algorithms-for-detection-of-lymph-node-metastases-in-women-with-breast-cancer
#10
Babak Ehteshami Bejnordi, Mitko Veta, Paul Johannes van Diest, Bram van Ginneken, Nico Karssemeijer, Geert Litjens, Jeroen A W M van der Laak, Meyke Hermsen, Quirine F Manson, Maschenka Balkenhol, Oscar Geessink, Nikolaos Stathonikos, Marcory Crf van Dijk, Peter Bult, Francisco Beca, Andrew H Beck, Dayong Wang, Aditya Khosla, Rishab Gargeya, Humayun Irshad, Aoxiao Zhong, Qi Dou, Quanzheng Li, Hao Chen, Huang-Jing Lin, Pheng-Ann Heng, Christian Haß, Elia Bruni, Quincy Wong, Ugur Halici, Mustafa Ümit Öner, Rengul Cetin-Atalay, Matt Berseth, Vitali Khvatkov, Alexei Vylegzhanin, Oren Kraus, Muhammad Shaban, Nasir Rajpoot, Ruqayya Awan, Korsuk Sirinukunwattana, Talha Qaiser, Yee-Wah Tsang, David Tellez, Jonas Annuscheit, Peter Hufnagl, Mira Valkonen, Kimmo Kartasalo, Leena Latonen, Pekka Ruusuvuori, Kaisa Liimatainen, Shadi Albarqouni, Bharti Mungal, Ami George, Stefanie Demirci, Nassir Navab, Seiryo Watanabe, Shigeto Seno, Yoichi Takenaka, Hideo Matsuda, Hady Ahmady Phoulady, Vassili Kovalev, Alexander Kalinovsky, Vitali Liauchuk, Gloria Bueno, M Milagro Fernandez-Carrobles, Ismael Serrano, Oscar Deniz, Daniel Racoceanu, Rui Venâncio
Importance: Application of deep learning algorithms to whole-slide pathology images can potentially improve diagnostic accuracy and efficiency. Objective: Assess the performance of automated deep learning algorithms at detecting metastases in hematoxylin and eosin-stained tissue sections of lymph nodes of women with breast cancer and compare it with pathologists' diagnoses in a diagnostic setting. Design, Setting, and Participants: Researcher challenge competition (CAMELYON16) to develop automated solutions for detecting lymph node metastases (November 2015-November 2016)...
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29234752/morphological-and-immunophenotypical-differences-between-chronic-periodontitis-and-peri-implantitis-a-cross-sectional-study
#11
Pablo Galindo-Moreno, Jesús López-Martínez, Mercedes Caba-Molina, Rosa Ríos-Pelegrina, Laura Torrecillas-Martínez, Alberto Monje, Francisco Mesa, Natalia Chueca, Federico García-García, Francisco O'Valle
PURPOSE: To examine differences in morphology and in immunophenotype subsets between chronic periodontitis (CP) and peri-implantitis (P-I) lesions and to test the diagnostic agreement (CP vs P-I) among three independent observers, based on histopathological features. MATERIALS AND METHODS: This observational cross-sectional study included 15 gingival biopsies of CP lesions and 15 biopsies of P-I lesions for double-blinded examination by three independent pathologists...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/29234688/superior-semicircular-canal-dehiscence-a-new-perspective
#12
Dinesh Sood, Lokesh Rana, Raman Chauhan, Roshni Shukla, Khanak Nandolia
Objective: To determine the use of multi-detector computed tomography (MDCT) in the diagnostic interpretation of superior semicircular canal dehiscence (SSCD) or thinning and its association with ear pathologies and to find whether it is an acquired condition and its association with increase in age. Materials and methods: study was performed in a tertiary care institute present in a village, following approval of the institutional ethical committee. Retrospective review of temporal bone CT examinations performed between September 2016 and March 2017 was done...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29234557/the-diagnostic-accuracy-of-the-lever-sign-for-detecting-anterior-cruciate-ligament-injury
#13
Edward P Mulligan, Amanda Anderson, Seth Watson, Robert J Dimeff
Background: An alternative physical examination procedure for evaluating the integrity of the anterior cruciate ligament (ACL) has been proposed in the literature but has not been validated in a broad population of patients with a symptomatic complaint of knee pain for its diagnostic value. Purpose: To investigate the diagnostic accuracy of the Lever Sign to detect ACL tears and compare the results to Lachman testing in both supine and prone positions. Study design: Prospective, blinded, diagnostic accuracy study...
December 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29234337/community-profiling-of-fusarium-in-combination-with-other-plant-associated-fungi-in-different-crop-species-using-smrt-sequencing
#14
Florian Walder, Klaus Schlaeppi, Raphaël Wittwer, Alain Y Held, Susanne Vogelgsang, Marcel G A van der Heijden
Fusarium head blight, caused by fungi from the genus Fusarium, is one of the most harmful cereal diseases, resulting not only in severe yield losses but also in mycotoxin contaminated and health-threatening grains. Fusarium head blight is caused by a diverse set of species that have different host ranges, mycotoxin profiles and responses to agricultural practices. Thus, understanding the composition of Fusarium communities in the field is crucial for estimating their impact and also for the development of effective control measures...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29234301/balance-screening-of-vestibular-function-in-subjects-aged-4-years-and-older-a-living-laboratory-experience
#15
María Carolina Bermúdez Rey, Torin K Clark, Daniel M Merfeld
To better understand the various individual factors that contribute to balance and the relation to fall risk, we performed the modified Romberg Test of Standing Balance on Firm and Compliant Support, with 1,174 participants between 4 and 83 years of age. This research was conducted in the Living Laboratory® at the Museum of Science, Boston. We specifically focus on balance test condition 4, in which individuals stand on memory foam with eyes closed, and must rely on their vestibular system; therefore, performance in this balance test condition provides a proxy for vestibular function...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29233836/radiomic-features-are-superior-to-conventional-quantitative-computed-tomographic-metrics-to-identify-coronary-plaques-with-napkin-ring-sign
#16
Márton Kolossváry, Júlia Karády, Bálint Szilveszter, Pieter Kitslaar, Udo Hoffmann, Béla Merkely, Pál Maurovich-Horvat
BACKGROUND: Napkin-ring sign (NRS) is an independent prognostic imaging marker of major adverse cardiac events. However, identification of NRS is challenging because of its qualitative nature. Radiomics is the process of extracting thousands of quantitative parameters from medical images to create big-data data sets that can identify distinct patterns in radiological images. Therefore, we sought to determine whether radiomic analysis improves the identification of NRS plaques. METHODS AND RESULTS: From 2674 patients referred to coronary computed tomographic angiography caused by stable chest pain, expert readers identified 30 patients with NRS plaques and matched these with 30 non-NRS plaques with similar degree of calcification, luminal obstruction, localization, and imaging parameters...
December 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29233483/development-and-validation-of-a-modified-taqman-based-real-time-pcr-assay-targeting-the-lipl32-gene-for-detection-of-pathogenic-leptospira-in-canine-urine-samples
#17
Bruno Alonso Miotto, Aline Santana da Hora, Sueli Akemi Taniwaki, Paulo Eduardo Brandão, Marcos Bryan Heinemann, Mitika Kuribayashi Hagiwara
A modified TaqMan real-time polymerase chain reaction targeting a 138bp fragment within the lipl32 gene was developed to identify exclusively pathogenic Leptospira spp. in dog urine samples. Thirty-five samples from dogs with suspected clinical leptospirosis and 116 samples from apparently healthy dogs were tested for presence of leptospiral DNA using the TaqMan-based assay. The results were compared with those from a well-established conventional PCR targeting the 16S RNA encoding gene associated with nucleotide sequencing analysis...
December 2, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29233228/disease-and-non-battle-traumatic-injuries-evaluated-by-emergency-physicians-in-a-us-tertiary-combat-hospital
#18
Col S Vikhyat S Bebarta, Alejandra G Mora, Capt Patrick C Ng, Phillip E Mason, Andrew Muck, Maj Joseph K Maddry
Introduction Analysis of injuries during military operations has focused on those related to combat. Non-combat complaints have received less attention, despite the need for many troops to be evacuated for non-battle illnesses in Iraq. This study aims to further characterize the disease and non-battle injuries (DNBIs) seen at a tertiary combat hospital and to describe the types of procedures and medications used in the management of these cases. METHODS: In this observational study, patients were enrolled from a convenience sample with non-combat-related diseases and injuries who were evaluated in the emergency department (ED) of a US military tertiary hospital in Iraq from 2007-2008...
December 13, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/29233139/demand-related-factors-influencing-caregivers-awareness-of-malaria-tests-and-health-workers-testing-practices-in-makarfi-nigeria
#19
Olufemi Ajumobi, Kabir Sabitu, IkeOluwapo Ajayi, Patrick Nguku, Joy Ufere, Peter Wasswa, Chinwoke Isiguzo, Jennifer Anyanti, Jenny Liu
BACKGROUND: Despite the World Health Organization's recommendation of malaria test-treat strategy, which is the treatment of parasitological confirmed malaria cases with anti-malarials, presumptive diagnosis of malaria remains fairly common in Nigeria. The reasons for this have not been established in Makarfi, Nigeria, despite the high burden of malaria in the area. A study was conducted among caregivers of febrile children less than 5 years presenting for treatment to understand their awareness of malaria diagnostic testing and being offered testing by clinicians, the determinants of these outcomes, and caregivers' perspectives of health workers' testing practices...
December 12, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29233115/development-and-validation-of-college-students-tuberculosis-knowledge-attitudes-and-practices-questionnaire-cs-tbkapq
#20
Hualin Jiang, Shaoru Zhang, Yi Ding, Yuelu Li, Tianhua Zhang, Weiping Liu, Yahui Fan, Yan Li, Rongqiang Zhang, Xuexue Ma
BACKGROUND: China faces many challenges in controlling tuberculosis (TB). One significant challenge is the control of college students' TB. In particular, cross-sectional studies of college students' knowledge, attitudes and practices (KAP) in regard to TB have attracted substantial attention. However, few measurement tools have been developed to aid processes related to expert consultation, pre-testing, reliability and validity testing. Our study developed the College Students' TB Knowledge Attitudes and Practices Questionnaire (CS-TBKAPQ) following the scale development steps...
December 12, 2017: BMC Public Health
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