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Innovative Diagnostic Laboratory

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https://www.readbyqxmd.com/read/28929945/innovative-pcr-without-dna-extraction-for-african-sickle-cell-disease-diagnosis
#1
L Detemmerman, S Olivier, V Bours, F Boemer
OBJECTIVES: Hemoglobin (Hb) disorders consist of thalassemia and Hb structural variants, of which the major forms are associated with severe anemia and/or vascular occlusion. Current diagnostic techniques are highly accurate and mostly based on isoelectric focusing, high-performance liquid chromatography or mass spectrometry, which often require advanced laboratory equipment. In sub-Saharan Africa, the Hb disorders are mainly associated to the pathological variants hemoglobin S (HbS) and HbC...
September 20, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28877186/proof-of-concept-of-a-45-second-cardiorespiratory-fitness-self-test-for-coronary-artery-disease-patients-based-on-accelerometry
#2
Gabriele Papini, Alberto G Bonomi, Wim Stut, Jos J Kraal, Hareld M C Kemps, Francesco Sartor
Cardiorespiratory fitness (CRF) provides important diagnostic and prognostic information. It is measured directly via laboratory maximal testing or indirectly via submaximal protocols making use of predictor parameters such as submaximal [Formula: see text], heart rate, workload, and perceived exertion. We have established an innovative methodology, which can provide CRF prediction based only on body motion during a periodic movement. Thirty healthy subjects (40% females, 31.3 ± 7.8 yrs, 25.1 ± 3.2 BMI) and eighteen male coronary artery disease (CAD) (56...
2017: PloS One
https://www.readbyqxmd.com/read/28851229/the-california-hiv-aids-research-program-history-impact-and-hiv-cure-initiative
#3
Lisa Loeb Stanga, Laura Packel, Tyler Martz, George Lemp
This Special Issue of AIDS Research and Human Retroviruses features results from the HIV Cure Initiative, funded by the California HIV/AIDS Research Program (CHRP). As a publicly-funded grant maker, CHRP has served for more than three decades as a unique resource for innovative researchers in California whose work seeks to address all aspects of the HIV epidemic and the communities affected by it. Early initiatives at CHRP pioneered what would become enduring cornerstones of HIV science: isolation of the virus; efficacy and toxicities of the first HIV treatments; the emergence of drug resistance; the first biospecimen banks for HIV-related research; the first community-based laboratory service for HIV diagnostic serology; and the first population-based longitudinal cohort study of persons living with HIV - The Gay Men's Health Study...
August 29, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28840987/multicenter-evaluation-of-an-image-analysis-device-apas-comparison-between-digital-image-and-traditional-plate-reading-using-urine-cultures
#4
John Glasson, Rhys Hill, Michael Summerford, Dianne Olden, Fotula Papadopoulos, Stephen Young, Steven Giglio
BACKGROUND: The application of image analysis technologies for the interpretation of microbiological cultures is evolving rapidly. The primary aim of this study was to establish whether the image analysis system named Automated Plate Assessment System (APAS; LBT Innovations Ltd., Australia) could be applied to screen urine cultures. A secondary aim was to evaluate differences between traditional plate reading (TPR) and the reading of cultures from images, or digital plate reading (DPR)...
November 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28763305/update-on-diagnostics-of-metabolic-myopathies
#5
Antonio Toscano, Emanuele Barca, Olimpia Musumeci
PURPOSE OF REVIEW: This review aims to highlight the most relevant clinical and laboratory findings, regarding acute and progressive metabolic myopathies, and to develop an algorithm addressing clinicians to clinical practice. RECENT FINDINGS: Although diagnosis of metabolic myopathies remains still challenging, the recent identification of new disorders has increased the number of patients requiring specific investigations. Nowadays, a more detailed characterization of the clinical spectrum of metabolic myopathies improved awareness as well as a deeper knowledge on their natural history or multisystem involvement...
October 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28725789/improving-american-healthcare-through-clinical-lab-2-0-a-project-santa-fe-report
#6
James M Crawford, Khosrow Shotorbani, Gaurav Sharma, Michael Crossey, Tarush Kothari, Thomas S Lorey, Jeffrey W Prichard, Myra Wilkerson, Nancy Fisher
Project Santa Fe was established both to provide thought leadership and to help develop the evidence base for the valuation of clinical laboratory services in the next era of American healthcare. The participants in Project Santa Fe represent major regional health systems that can operationalize laboratory-driven innovations and test their valuation in diverse regional marketplaces in the United States. We provide recommendations from the inaugural March 2016 meeting of Project Santa Fe. Specifically, in the transition from volume-based to value-based health care, clinical laboratories are called upon to provide programmatic leadership in reducing total cost of care through optimization of time-to-diagnosis and time-to-effective therapeutics, optimization of care coordination, and programmatic support of wellness care, screening, and monitoring...
January 2017: Acad Pathol
https://www.readbyqxmd.com/read/28719290/performance-of-real-time-polymerase-chain-reaction-assays-for-the-detection-of-20-gastrointestinal-parasites-in-clinical-samples-from-senegal
#7
Doudou Sow, Philippe Parola, Khadime Sylla, Magatte Ndiaye, Pascal Delaunay, Philippe Halfon, Sabine Camiade, Thérèse Dieng, Roger C K Tine, Babacar Faye, Jean Louis Ndiaye, Yémou Dieng, Oumar Gaye, Didier Raoult, Fadi Bittar
Gastrointestinal parasite infections represent one of the biggest public health problems in the world. Therefore, appropriate innovative tools are needed for assessing interventions to control these infections. This study aims to compare the performance of real-time polymerase chain reaction (PCR) assays to microscopic examination for detection of intestinal parasites. A direct microscopic examination and stool concentration was performed on 98 stool samples from patients attending Senegalese hospitals. Negative microscopic control samples were also collected in Nice and Marseille (France)...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28681972/pneumonia-in-the-developing-world-characteristic-features-and-approach-to-management
#8
REVIEW
Stephen J Aston
Community-acquired pneumonia (CAP) is a common cause of morbidity and mortality in adults worldwide, but its epidemiology varies markedly by region. Whilst in high-income countries, the predominant burden of CAP is in the elderly and those with chronic cardiovascular and pulmonary co-morbidity, CAP patients in low-income settings are often of working age and, in sub-Saharan Africa, frequently HIV-positive. Although region-specific aetiological data are limited, they are sufficient to highlight major trends: in high-burden settings, tuberculosis (TB) is a common cause of acute CAP; Gram-negative pathogens such as Klebsiella pneumoniae are regionally important; and HIV-associated opportunistic infections are common but difficult to diagnose...
July 6, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28675416/nanopartiklar-kan-f%C3%A3-rb%C3%A3-ttra-avbildningsteknik-och-diagnostik
#9
Fredrik Höök, Anders Persson, Bengt Kasemo
Nanotechnology can improve diagnostics The unique properties of nanoparticles make them tailorable into diagnostic agents on a molecular level, which allow more sensitive and precise in vitro diagnostics and in vivo imaging. While in vitro applications already have impact on diagnostics, in vivo use remains challenging due to difficulties in preparing nanoparticles with acceptable properties regarding toxicity, specific target accumulation and degradation. This article describes the innovative work of developing such platforms, and concludes that while nanotechnology-based diagnostics and imaging are still scarce at the clinical level, the rapid development of many new concepts, devices and processes that are now in the laboratory pipeline promises significant impact in the near future...
July 3, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28674714/genexpert-technology-a-breakthrough-for-the-diagnosis-of-tuberculous-pericarditis-and-pleuritis-in-less-than-2-hours
#10
Muhammad Saeed, Mobeen Ahmad, Shagufta Iram, Saba Riaz, Mehwish Akhtar, Maleeha Aslam
OBJECTIVES: To evaluate the diagnostic validity of GeneXpert for the detection of Mycobacterium tuberculosis (MTB) in pericardial and pleural effusions samples. METHODS: A cross sectional study was conducted at the Mycobacteriology Laboratory, Allama Iqbal Medical College, Lahore, Pakistan. A total of 286 (158 pleural and 128 pericardial fluids) samples were received from tuberculosis (TB) suspects between January 2014 and August 2016. Every sample was processed for Ziehl-Neelsen (Zn) smear, Lowenstein Jensen (LJ) culture, GeneXpert MTB/RIF assay according to standard protocols...
July 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28625793/comparison-of-sputum-collection-methods-for-tuberculosis-diagnosis-a-systematic-review-and-pairwise-and-network-meta-analysis
#11
Sumona Datta, Lena Shah, Robert H Gilman, Carlton A Evans
BACKGROUND: The performance of laboratory tests to diagnose pulmonary tuberculosis is dependent on the quality of the sputum sample tested. The relative merits of sputum collection methods to improve tuberculosis diagnosis are poorly characterised. We therefore aimed to investigate the effects of sputum collection methods on tuberculosis diagnosis. METHODS: We did a systematic review and meta-analysis to investigate whether non-invasive sputum collection methods in people aged at least 12 years improve the diagnostic performance of laboratory testing for pulmonary tuberculosis...
August 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28500014/three-dimensional-visual-patient-based-on-electronic-medical-diagnostic-records
#12
Liehang Shi, Jianyong Sun, Yuanyuan Yang, Tonghui Ling, Mingqing Wang, Yiping Gu, Zhiming Yang, Yanqing Hua, Jianguo Zhang
OBJECTIVE: An innovative concept and method is introduced to use a three Dimensional (3D) anatomical graphic pattern called Visual Patient (VP) visually to index, represent and render the medical diagnostic records (MDRs) of a patient, so that a doctor can quickly learn the current and historical medical status of the patient by manipulating VP. The MDRs can be imaging diagnostic reports and DICOM images, laboratory reports and clinical summaries which can have clinical information relating to medical status of human organs or body parts...
May 8, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28465148/competitive-pcr-high-resolution-melting-analysis-c-pcr-hrma-for-large-genomic-rearrangements-lgrs-detection-a-new-approach-to-assess-quantitative-status-of-brca1-gene-in-a-reference-laboratory
#13
Angelo Minucci, Elisa De Paolis, Paola Concolino, Maria De Bonis, Roberta Rizza, Giulia Canu, Giovanni Luca Scaglione, Flavio Mignone, Giovanni Scambia, Cecilia Zuppi, Ettore Capoluongo
AIM OF THE STUDY: Evaluation of copy number variation (CNV) in BRCA1/2 genes, due to large genomic rearrangements (LGRs), is a mandatory analysis in hereditary breast and ovarian cancers families, if no pathogenic variants are found by sequencing. LGRs cannot be detected by conventional methods and several alternative methods have been developed. Since these approaches are expensive and time consuming, identification of alternative screening methods for LGRs detection is needed in order to reduce and optimize the diagnostic procedure...
July 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28448782/amcp-partnership-forum-driving-value-and-outcomes-in-oncology
#14
(no author information available yet)
Innovation in cancer treatment has provided a wealth of recently available therapeutic agents and a healthy drug pipeline that promises to change the way we approach this disease and the lives of those affected in the years to come. However, the majority of these new agents, many of which are targeted to specific genomic features of various tumors, may challenge the health care system's ability to afford cancer care. This innovation drives the need to focus on the value of the treatments provided to patients with cancer and on methods to optimize the efficiency of the dollars we spend, in addition to the clinical value itself...
May 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28407424/biofilms-in-orthopedic-infections-a-review-of-laboratory-methods
#15
REVIEW
Alex C Dibartola, Matthew C Swearingen, Jeffrey F Granger, Paul Stoodley, Devendra H Dusane
Bacterial infection after hardware implantation in orthopedic surgery is a devastating issue as it often necessitates increased hospital costs and stays, multiple revision surgeries, and prolonged use of antibiotics. Because of the nature of hardware implantation into the body, these infections are commonly in the form of attached biofilms. The current literature on a range of methodologies to study clinically explanted infected orthopedic hardware, with potential biofilm, in the laboratory setting is limited...
April 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28399000/overcoming-health-system-challenges-for-women-and-children-living-with-hiv-through-the-global-plan
#16
REVIEW
Surbhi Modi, Tegan Callahan, Jessica Rodrigues, Mwikemo D Kajoka, Helen M Dale, Judite O Langa, Marilena Urso, Matsepeli I Nchephe, Helene Bongdene, Sostena Romano, Laura N Broyles
To meet the ambitious targets set by the Global Plan Towards the Elimination of New HIV Infections Among Children by 2015 and Keeping Their Mothers Alive (Global Plan), the initial 22 priority countries quickly developed innovative approaches for overcoming long-standing health systems challenges and providing HIV testing and treatment to pregnant and breastfeeding women and their infants. The Global Plan spurred programs for prevention of mother-to-child HIV transmission to integrate HIV-related care and treatment into broader maternal, newborn, and child health services; expand the effectiveness of the health workforce through task sharing; extend health services into communities; strengthen supply chain and commodity management systems; reduce diagnostic and laboratory hurdles; and strengthen strategic supervision and mentorship...
May 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28352456/re-imagining-the-future-of-diagnosis-of-neglected-tropical-diseases
#17
REVIEW
Rosanna W Peeling, Debrah I Boeras, John Nkengasong
Neglected Tropical Diseases (NTDs) affect an estimated 1 billion people in 149 countries. The World Health Organization (WHO) prioritised 17 NTDs for control and elimination by 2020 and defined a Road Map to help countries reach these goals. Improved diagnostics for NTDs are essential for guiding treatment strategies at different thresholds of control, interruption of transmission, elimination and post-elimination surveillance. While substantial progress has been made in the last decade with chemotherapy, the same cannot be said of diagnostics, largely due to the perceived lack of a commercially viable market for NTD diagnostics...
2017: Computational and Structural Biotechnology Journal
https://www.readbyqxmd.com/read/28350898/leading-antibacterial-laboratory-research-by-integrating-conventional-and-innovative-approaches-the-laboratory-center-of-the-antibacterial-resistance-leadership-group
#18
Claudia Manca, Carol Hill, Andrea M Hujer, Robin Patel, Scott R Evans, Robert A Bonomo, Barry N Kreiswirth
The Antibacterial Resistance Leadership Group (ARLG) Laboratory Center (LC) leads the evaluation, development, and implementation of laboratory-based research by providing scientific leadership and supporting standard/specialized laboratory services. The LC has developed a physical biorepository and a virtual biorepository. The physical biorepository contains bacterial isolates from ARLG-funded studies located in a centralized laboratory and they are available to ARLG investigators. The Web-based virtual biorepository strain catalogue includes well-characterized gram-positive and gram-negative bacterial strains published by ARLG investigators...
March 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28264955/reference-pricing-changes-the-choice-architecture-of-health-care-for-consumers
#19
James C Robinson, Timothy T Brown, Christopher Whaley
Reference pricing in health insurance creates incentives for patients to select for nonemergency services providers that charge relatively low prices and still offer high quality of care. It changes the "choice architecture" by offering standard coverage if the patient chooses cost-effective providers but requires considerable consumer cost sharing if more expensive alternatives are selected. The short-term impact of reference pricing has been to shift patient volumes from hospital-based to freestanding surgical, diagnostic, imaging, and laboratory facilities...
March 1, 2017: Health Affairs
https://www.readbyqxmd.com/read/28258233/microfluidics-innovative-approaches-for-rapid-diagnosis-of-antibiotic-resistant-bacteria
#20
REVIEW
Amornrat Aroonnual, Tavan Janvilisri, Puey Ounjai, Surang Chankhamhaengdecha
The emergence of antibiotic-resistant bacteria has become a major global health concern. Rapid and accurate diagnostic strategies to determine the antibiotic susceptibility profile prior to antibiotic prescription and treatment are critical to control drug resistance. The standard diagnostic procedures for the detection of antibiotic-resistant bacteria, which rely mostly on phenotypic characterization, are time consuming, insensitive and often require skilled personnel, making them unsuitable for point-of-care (POC) diagnosis...
February 28, 2017: Essays in Biochemistry
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