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Rapid blood culture

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https://www.readbyqxmd.com/read/28340215/development-of-enzyme-immunoassays-elisa-and-western-blot-for-the-serological-diagnosis-of-dermatophytosis-in-symptomatic-and-asymptomatic-cats
#1
Aline Elisa Santana, Carlos Pelleschi Taborda, Julia So Severo, Glauce Mary Gomes Rittner, Julian Esteban Muñoz, Carlos Eduardo Larsson, Carlos Eduardo Larsson
Dermatophytosis is the most common fungal infection in cats worldwide and plays an important role in both animal and human health due to their high zoonotic potential. Effective screening is a strong preventive measure and the fungal culture is quite useful but requires full laboratorial experience and it takes a long time to obtain the result. A rapid and accurate screening test for dermatophytosis in cats is crucial for the effective control of disease outbreaks. The aim of this study was to develop and evaluate the diagnostic efficacy of enzyme immunoassays (ELISA and Western blot [WB]) for the rapid and precise diagnosis of dermatophytosis in cats...
March 11, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28332721/rapid-detection-and-quantification-of-ebola-zaire-virus-by-one-step-real-time-quantitative-reverse-transcription-polymerase-chain-reaction
#2
Young-Tae Ro, Anysha Ticer, Ricardo Carrion, Jean L Patterson
Since Ebola virus causes a severe hemorrhagic fever in humans with mortality rates as high as 90%, the rapid and accurate detection of the virus is essential both for controlling the infection and for preventing further transmission. Here, we introduce one-step real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) assays for the rapid and quantitative detection of an Ebola Zaire strain using GP, VP24 or VP40 gene as a target. Routine assay conditions for hydrolysis probe detection were established by the manufacturer's protocol used in the assays...
March 23, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28329181/treatment-response-in-enteric-fever-in-an-era-of-increasing-antimicrobial-resistance-an-individual-patient-data-analysis-of-2-092-participants-enrolled-into-four-randomised-controlled-trials-in-nepal
#3
Corinne N Thompsom, Abhilasha Karkey, Sabina Dongol, Amit Ariyal, Marcel Wolbers, Thomas Darton, Jeremey J Farrar, Guy E Thwaites, Christiane Dolecek, Buddha Basnyat, Stephen Baker
Background: Enteric fever, caused by Salmonella Typhi and Salmonella Paratyphi A, is the leading cause of bacterial febrile disease in South Asia. Methods: Individual patient data from 2,092 subjects with enteric fever randomised into four trials in Kathmandu, Nepal was pooled. All trials compared gatifloxacin with a comparator drug: cefixime, chloramphenicol, ofloxacin, or ceftriaxone. Treatment outcomes were evaluated according to antimicrobial if S. Typhi/Paratyphi were isolated from blood...
February 28, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28321212/microbiological-characteristics-and-clinical-features-of-cardiac-implantable-electronic-device-infections-at-a-tertiary-hospital-in-china
#4
Ruobing Wang, Xuebin Li, Qi Wang, Yawei Zhang, Hui Wang
The incidence of cardiac implantable electronic device (CIED) infections is rapidly increasing worldwide. However, the microbiological characteristics and clinical features of symptomatic CIED infections are not well described. The present study included patients with CIED infections in China, and their pocket tissues were collected for clinical microbiological determination. A total of 219 patients with CIED infections were investigated; of these patients, 145 (66.2%) were positive for CIED infection in pocket tissue cultures and 24 (11...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28320384/diagnostic-accuracy-incremental-yield-and-prognostic-value-of-determine-tb-lam-for-routine-diagnostic-testing-for-tuberculosis-in-hiv-infected-patients-requiring-acute-hospital-admission-in-south-africa-a-prospective-cohort
#5
Stephen D Lawn, Andrew D Kerkhoff, Rosie Burton, Charlotte Schutz, Andrew Boulle, Monica Vogt, Ankur Gupta-Wright, Mark P Nicol, Graeme Meintjes
BACKGROUND: We previously reported that one-third of HIV-positive adults requiring medical admission to a South African district hospital had laboratory-confirmed tuberculosis (TB) and that almost two-thirds of cases could be rapidly diagnosed using Xpert MTB/RIF-testing of concentrated urine samples obtained on the first day of admission. Implementation of urine-based, routine, point-of-care TB screening is an attractive intervention that might be facilitated by use of a simple, low-cost diagnostic tool, such as the Determine TB-LAM lateral-flow rapid test for HIV-associated TB...
March 21, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28316631/potential-impact-of-rapid-blood-culture-testing-for-gram-positive-bacteremia-in-japan-with-the-verigene-gram-positive-blood-culture-test
#6
Ken Kikuchi, Mari Matsuda, Shigekazu Iguchi, Tomonori Mizutani, Keiichi Hiramatsu, Michiru Tega-Ishii, Kaori Sansaka, Kenta Negishi, Kimie Shimada, Jun Umemura, Shigeyuki Notake, Hideji Yanagisawa, Hiroshi Takahashi, Reiko Yabusaki, Hideki Araoka, Akiko Yoneyama
Background. Early detection of Gram-positive bacteremia and timely appropriate antimicrobial therapy are required for decreasing patient mortality. The purpose of our study was to evaluate the performance of the Verigene Gram-positive blood culture assay (BC-GP) in two special healthcare settings and determine the potential impact of rapid blood culture testing for Gram-positive bacteremia within the Japanese healthcare delivery system. Furthermore, the study included simulated blood cultures, which included a library of well-characterized methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE) isolates reflecting different geographical regions in Japan...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/28315952/kinetic-analysis-size-profiling-and-bioenergetic-association-of-dna-released-by-selected-cell-lines-in-vitro
#7
Janine Aucamp, Abel J Bronkhorst, Dimetrie L Peters, Hayley C Van Dyk, Francois H Van der Westhuizen, Piet J Pretorius
Although circulating DNA (cirDNA) analysis shows great promise as a screening tool for a wide range of pathologies, numerous stumbling blocks hinder the rapid translation of research to clinical practice. This is related directly to the inherent complexity of the in vivo setting, wherein the influence of complex systems of interconnected cellular responses and putative DNA sources creates a seemingly arbitrary representation of the quantitative and qualitative properties of the cirDNA in the blood of any individual...
March 18, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28301587/the-duplication-mutation-of-quebec-platelet-disorder-dysregulates-plau-but-not-c10orf55-selectively-increasing-production-of-normal-plau-transcripts-by-megakaryocytes-but-not-granulocytes
#8
Catherine P M Hayward, Minggao Liang, Subia Tasneem, Asim Soomro, John S Waye, Andrew D Paterson, Georges E Rivard, Michael D Wilson
Quebec Platelet disorder (QPD) is a unique bleeding disorder that markedly increases urokinase plasminogen activator (uPA) in megakaryocytes and platelets but not in plasma or urine. The cause is tandem duplication of a 78 kb region of chromosome 10 containing PLAU (the uPA gene) and C10orf55, a gene of unknown function. QPD increases uPA in platelets and megakaryocytes >100 fold, far more than expected for a gene duplication. To investigate the tissue-specific effect that PLAU duplication has on gene expression and transcript structure in QPD, we tested if QPD leads to: 1) overexpression of normal or unique PLAU transcripts; 2) increased uPA in leukocytes; 3) altered levels of C10orf55 mRNA and/or protein in megakaryocytes and leukocytes; and 4) global changes in megakaryocyte gene expression...
2017: PloS One
https://www.readbyqxmd.com/read/28296967/the-combined-rapid-detection-and-species-level-identification-of-yeasts-in-simulated-blood-culture-using-a-colorimetric-sensor-array
#9
Nabin K Shrestha, Sung H Lim, Deborah A Wilson, Ana Victoria SalasVargas, Yair S Churi, Paul A Rhodes, Peter J Mazzone, Gary W Procop
BACKGROUND: A colorimetric sensor array (CSA) has been demonstrated to rapidly detect and identify bacteria growing in blood cultures by obtaining a species-specific "fingerprint" of the volatile organic compounds (VOCs) produced during growth. This capability has been demonstrated in prokaryotes, but has not been reported for eukaryotic cells growing in culture. The purpose of this study was to explore if a disposable CSA could differentially identify 7 species of pathogenic yeasts growing in blood culture...
2017: PloS One
https://www.readbyqxmd.com/read/28293231/isolation-of-francisella-tularensis-and-yersinia-pestis-from-blood-cultures-by-plasma-purification-and-immunomagnetic-separation-accelerates-antibiotic-susceptibility-determination
#10
Ronit Aloni-Grinstein, Ofir Schuster, Shmuel Yitzhaki, Moshe Aftalion, Sharon Maoz, Ida Steinberger-Levy, Raphael Ber
The early symptoms of tularemia and plague, which are caused by Francisella tularensis and Yersinia pestis infection, respectively, are common to other illnesses, resulting in a low index of suspicion among clinicians. Moreover, because these diseases can be treated only with antibiotics, rapid isolation of the bacteria and antibiotic susceptibility testing (AST) are preferable. Blood cultures of patients may serve as a source for bacteria isolation. However, due to the slow growth rates of F. tularensis and Y...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28292310/microglial-derived-microparticles-mediate-neuroinflammation-after-traumatic-brain-injury
#11
Alok Kumar, Bogdan A Stoica, David J Loane, Ming Yang, Gelareh Abulwerdi, Niaz Khan, Asit Kumar, Stephen R Thom, Alan I Faden
BACKGROUND: Local and systemic inflammatory responses are initiated early after traumatic brain injury (TBI), and may play a key role in the secondary injury processes resulting in neuronal loss and neurological deficits. However, the mechanisms responsible for the rapid expansion of neuroinflammation and its long-term progression have yet to be elucidated. Here, we investigate the role of microparticles (MP), a member of the extracellular vesicle family, in the exchange of pro-inflammatory molecules between brain immune cells, as well as their transfer to the systemic circulation, as key pathways of inflammation propagation following brain trauma...
March 15, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28291334/rapid-real-time-antimicrobial-susceptibility-testing-with-electrical-sensing-on-plastic-microchips-with-printed-electrodes
#12
Mohammadali Safavieh, Hardik Jeetendra Pandya, Maanasa Venkataraman, Prudhvi Thirumalaraju, Manoj Kumar Kanakasabapathy, Anupriya Singh, Devbalaji Prabhakar, Manjyot Kaur Chug, Hadi Shafiee
Rapid antimicrobial susceptibility testing is important for efficient and timely therapeutic decision making. Due to globally spread bacterial resistance, the efficacy of antibiotics is increasingly being impeded. Conventional antibiotic tests rely on bacterial culture, which is time-consuming and can lead to potentially inappropriate antibiotic prescription and up-front broad range of antibiotic use. There is an urgent need to develop point-of-care platform technologies to rapidly detect pathogens, identify the right antibiotics, and monitor mutations to help adjust therapy...
March 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28288925/sepsis-related-mortality-in-497-cases-with-blood-culture-positive-sepsis-in-an-emergency-department
#13
Juha Rannikko, Jaana Syrjänen, Tapio Seiskari, Janne Aittoniemi, Reetta Huttunen
OBJECTIVE: Few studies have sought to establish how often the deaths after sepsis are related to the sepsis and how often underlying diseases have a major role in case fatality. METHODS: In this retrospective cohort study, data were collected on 497 cases with blood culture-positive sepsis in an emergency department (ED). RESULTS: Sepsis was categorized as severe in 31% of cases and 7% had septic shock. The quick Sepsis-related Organ Failure Assessment score was positive on 136 out of 473 cases (29%)...
March 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28287533/isolation-of-endothelial-progenitor-cells-from-healthy-volunteers-and-their-migratory-potential-influenced-by-serum-samples-after-cardiac-surgery
#14
Christoph Emontzpohl, David Simons, Sandra Kraemer, Andreas Goetzenich, Gernot Marx, Jürgen Bernhagen, Christian Stoppe
Endothelial progenitor cells (EPCs) are recruited from the bone marrow under pathological conditions like hypoxia and are crucially involved in the neovascularization of ischemic tissues. The origin, classification and characterization of EPCs are complex; notwithstanding, two prominent sub-types of EPCs have been established: so-called "early" EPCs (subsequently referred to as early-EPCs) and late-outgrowth EPCs (late-EPCs). They can be classified by biological properties as well as by their appearance during in vitro culture...
February 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28274569/predictive-value-of-circulating-tumor-cells-ctcs-captured-by-microfluidic-device-in-patients-with-epithelial-ovarian-cancer
#15
Maria Lee, Eun Jae Kim, Youngnam Cho, Sunshin Kim, Hyun Hoon Chung, Noh Hyun Park, Yong-Sang Song
OBJECTIVE: To test an electrically conductive chip, incorporating a nanoroughened microfluidic platform for the capture of circulating tumor cells (CTCs), and assess its clinical merit in instances of epithelial ovarian cancer (EOC). METHODS: A total of 54 patients with EOC recruited between August 2014 and May 2015 were enrolled in this prospective study. CTCs in peripheral blood were detected in advance of primary tumor resection and before initiating adjuvant chemotherapy for recurrent disease...
March 5, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28274205/rapid-detection-of-carbapenemase-producing-klebsiella-pneumoniae-strains-derived-from-blood-cultures-by-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-maldi-tof-ms
#16
Christina Sakarikou, Marco Ciotti, Camilla Dolfa, Silvia Angeletti, Cartesio Favalli
BACKGROUND: Carbapenemase-producing Enterobacteriaceae (CPE), particularly carbapenemase-producing Klebsiella pneumoniae isolates, are important causative agents of nosocomial infections associated with significant mortality rates mostly in critical wards. The rapid detection and typing of these strains is critical either for surveillance purposes and to prevent outbreaks and optimize antibiotic therapy. In this study, the MALDI-TOF MS method was used to detect rapidly these isolates from blood cultures (BCs) and to obtain proteomic profiles enable to discriminate between carbapenemase-producing and non-carbapenemase-producing strains...
March 8, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28260765/comparison-of-molecular-detection-method-nested-polymerase-chain-reaction-with-blood-culture-and-paired-widal-test-for-the-rapid-diagnosis-of-typhoid-fever
#17
S Khan, R A Miah, S Pal, S Khatun, N Fatema, R R Roy, C R Naheen
Typhoid fever is a major health problem in developing countries in spite of the use of antibiotics and the development of newer antibacterial drugs. Blood culture & serological tests (specially Widal test) which are invariably done in Bangladesh for typhoid fever diagnosis give unacceptable levels of false negative & false positive results respectively. This cross sectional study was done at Bangabandhu Sheikh Mujib Medical University from March 2013 to February 2014. In this study, a polymerase chain reaction-based technique (which has 100% specificity for Salmonella Typhi) was compared with blood culture and widal test among 80 clinically suspected cases of typhoid fever...
January 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28258595/transgenic-expression-of-human-leukocyte-antigen-e-attenuates-galko-hcd46-porcine-lung-xenograft-injury
#18
Christopher T Laird, Lars Burdorf, Beth M French, Natalia Kubicki, Xiangfei Cheng, Gheorghe Braileanu, Wenji Sun, Natalie A O'Neill, Arielle Cimeno, Dawn Parsell, Edward So, Andrea Bähr, Nikolai Klymiuk, Carol J Phelps, David Ayares, Agnes M Azimzadeh, Richard N Pierson
BACKGROUND: Lung xenografts remain susceptible to loss of vascular barrier function within hours in spite of significant incremental advances based on genetic engineering to remove the Gal 1,3-αGal antigen (GalTKO) and express human membrane cofactor protein (hCD46). Natural killer cells rapidly disappear from the blood during perfusion of GalTKO.hCD46 porcine lungs with human blood and presumably are sequestered within the lung vasculature. Here we asked whether porcine expression of the human NK cell inhibitory ligand HLA-E and β2 microglobulin inhibits GalTKO...
March 3, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28255157/role-of-high-mobility-group-box-1-hmgb1-in-transplantation-of-rat-pancreatic-islets
#19
Seonghee Jeong, Song Lee, Chan Mee-Lee, In Kyong Shim, Song-Cheol Kim
BACKGROUND The potential role of tissue damage factor high-mobility group box 1 (HMGB1) in islet cell transplantation is poorly understood. We investigated the role of HMGB1 in pancreatic islet cell isolation and culture in vitro and after pancreatic islet cell transplantation into diabetic nude mice in vivo. MATERIAL AND METHODS To generate damaged islets, isolated islets were treated with 1 mg/mL lipopolysaccharide (LPS). Some islets were pretreated with a neutralizing anti-HMGB1 antibody before LPS treatment to investigate the effect of HMGB1 on isolated islets damaged by LPS...
March 3, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28250912/identification-and-preliminary-validation-of-radiation-response-protein-s-in-human-blood-for-a-high-throughput-molecular-biodosimetry-technology-for-the-future
#20
Saibadaiahun Nongrum, S Thangminlal Vaiphei, Joshua Keppen, Mandahakani Ksoo, Ettrika Kashyap, Rajesh N Sharan
The absence of a rapid and high-throughput technology for radiation biodosimetry has been a great obstacle in our full preparedness to cope with large-scale radiological incidents. The existing cytogenetic technologies have limitations, primarily due to their time-consuming methodologies, which include a tissue culture step, and the time required for scoring. This has seriously undermined its application in a mass casualty scenario under radiological emergencies for timely triage and medical interventions. Recent advances in genomics and proteomics in the postgenomic era have opened up new platforms and avenues to discover molecular biomarkers for biodosimetry in the future...
2017: Genome Integrity
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