keyword
MENU ▼
Read by QxMD icon Read
search

Rapid blood culture

keyword
https://www.readbyqxmd.com/read/28100311/the-evaluation-of-three-different-bottles-in-bactec-9240-automated-blood-culture-system-and-direct-identification-of-candida-species-to-shorten-the-turnaround-time-of-blood-culture
#1
Egemen Gokbolat, Yasemin Oz, Selma Metintas
Candida spp. are the most common causes of fungemia. Rapid and accurate diagnostic methods are very important for appropriate management of candidemia. At present, blood culture is the essential diagnostic test despite it has a long detection time and low sensitivity rate. We aimed to investigate the ways to shorten the turnaround time from blood culture collection to final identification in candidemia. Sixty clinical bloodstream isolates of Candida were included and the Plus Aerobic/F, Peds Plus/F and Mycosis IC/F (MICF) bottles were used with BACTEC 9240 blood culture instrument...
January 16, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28100271/evaluation-of-three-sample-preparation-methods-for-the-direct-identification-of-bacteria-in-positive-blood-cultures-by-maldi-tof
#2
Hannah Tanner, Jason T Evans, Savita Gossain, Abid Hussain
BACKGROUND: Patient mortality is significantly reduced by rapid identification of bacteria from sterile sites. MALDI-TOF can identify bacteria directly from positive blood cultures and multiple sample preparation methods are available. We evaluated three sample preparation methods and two MALDI-TOF score cut-off values. Positive blood culture bottles with organisms present in Gram stains were prospectively analysed by MALDI-TOF. Three lysis reagents (Saponin, SDS, and SepsiTyper lysis bufer) were applied to each positive culture followed by centrifugation, washing and protein extraction steps...
January 18, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28079790/ecthyma-gangrenosum-a-skin-manifestation-of-pseudomonas-aeruginosa-sepsis-in-a-previously-healthy-child-a-case-report
#3
Stephanie Biscaye, Diane Demonchy, Mickael Afanetti, Audrey Dupont, Herve Haas, Antoine Tran
RATIONALE: Ecthyma gangrenosum (Eg) is a necrotic lesion that is mostly seen in immunocompromised patients. It reflects a severe sepsis, possibly caused by Pseudomonas aeruginosa (Pa). PATIENT CONCERNS: A healthy 3-year-old girl admitted to the Pediatric Emergency Department presented a sepsis-associated purpura with neurological and respiratory distress. INTERVENTIONS: An empiric antibiotherapy (anti-meningococcal) was prescribed. DIAGNOSES: Forty-eight hours after admission, blood and wound cultures were positive for Pa...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28063000/evaluation-of-loop-mediated-isothermal-amplification-for-the-rapid-identification-of-bacteria-and-resistance-determinants-in-positive-blood-cultures
#4
J Rödel, J A Bohnert, S Stoll, L Wassill, B Edel, M Karrasch, B Löffler, W Pfister
The use of molecular assays to rapidly identify pathogens and resistance genes directly from positive blood cultures (BCs) contribute to shortening the time required for the diagnosis of bloodstream infections. In this work, loop-mediated isothermal amplification (LAMP) assays have been examined for their potential use in BC diagnosis. Three different assays were applied. The commercially available eazyplex® MRSA test detects Staphylococcus aureus, S. epidermidis, mecA, and mecC. Two in-house assays [Gram-positive (GP) and Gram-negative (GN)] have been developed for the detection of streptococci, enterococci, vanA, vanB, Pseudomonas spp...
January 6, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28062319/nanomechanical-sensor-applied-to-blood-culture-pellets-a-fast-approach-to-determine-the-antibiotic-susceptibility-against-agents-of-bloodstream-infections
#5
Petar Stupar, Onya Opota, Giovanni Longo, Guy Prod'hom, Giovanni Dietler, Gilbert Greub, Sandor Kasas
OBJECTIVES: The management of bloodstream infection, a life-threatening disease, largely relies on early detection of infecting microorganisms and accurate determination of their antibiotic susceptibility, to reduce both mortality and morbidity. Recently, we developed a new technique based on atomic force microscopy, capable of detecting movements of biological samples at the nanoscale. Such sensor is able to monitor the response of bacteria to antibiotic's pressure, allowing a fast and versatile susceptibility test...
January 3, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28044296/microfluidic-based-bacteria-isolation-from-whole-blood-for-diagnostics-of-blood-stream-infection
#6
Sergey Zelenin, Harisha Ramachandraiah, Asim Faridi, Aman Russom
Bacterial blood stream infection (BSI) potentially leads to life-threatening clinical conditions and medical emergencies such as severe sepsis, septic shock, and multi organ failure syndrome. Blood culturing is currently the gold standard for the identification of microorganisms and, although it has been automated over the decade, the process still requires 24-72 h to complete. This long turnaround time, especially for the identification of antimicrobial resistance, is driving the development of rapid molecular diagnostic methods...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28027279/the-influence-of-the-route-of-antibiotic-administration-methicillin-susceptibility-vancomycin-duration-and-serum-trough-concentration-on-outcomes-of-pediatric-staphylococcus-aureus-bacteremic-osteoarticular-infection
#7
J Chase McNeil, Sheldon L Kaplan, Jesus G Vallejo
BACKGROUND: Bacteremia is often one factor used in deciding the need for prolonged intravenous antimicrobial therapy in osteoarticular infections (OAI). We examined treatment practices and outcomes of bacteremic S. aureus osteoarticular infections (BOAI) evaluated at Texas Children's Hospital (TCH). METHODS: Cases of acute hematogenous OAI in children with positive blood cultures for S. aureus at TCH from 2011-2014 were reviewed. Orthopedic complications included chronic osteomyelitis, growth arrest, pathologic fracture, avascular necrosis and chronic dislocation...
December 23, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28018634/characterization-of-stress-coping-style-in-senegalese-sole-solea-senegalensis-juveniles-and-breeders-for-aquaculture
#8
Z Ibarra-Zatarain, E Fatsini, S Rey, O Chereguini, I Martin, I Rasines, C Alcaraz, N Duncan
The aim of this work was to characterize stress coping styles of Senegalese sole (Solea senegalensis) juveniles and breeders and to select an operational behavioural screening test (OBST) that can be used by the aquaculture industry to classify and select between behavioural phenotypes in order to improve production indicators. A total of 61 juveniles and 59 breeders were subjected to five individual behavioural tests and two grouping tests. At the end of the individual tests, all animals were blood sampled in order to measure cortisol, glucose and lactate...
November 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/28013258/epidemiology-of-carbapenem-resistant-klebsiella-pneumoniae-in-a-network-of-long-term-acute-care-hospitals
#9
Jennifer H Han, Ellie J C Goldstein, Jacqueleen Wise, Warren B Bilker, Pam Tolomeo, Ebbing Lautenbach
BACKGROUND: The rapid emergence of carbapenem-resistant Klebsiella pneumoniae (CRKP) represents a major public health threat, including in the long-term acute care hospital (LTACH) setting. The objective of this study was to describe the epidemiologic characteristics of CRKP in a network of United States LTACHs. METHODS: An observational study was performed among 64 LTACHs from January 2014 to March 2015. Clinical cultures were included, with the first CRKP isolate recovered from each patient per study quarter evaluated...
December 24, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28005311/eltrombopag-a-thrombopoietin-mimetic-crosses-the-blood-brain-barrier-and-impairs-iron-dependent-hippocampal-neuron-dendrite-development
#10
Thomas W Bastian, Kari A Duck, George C Michalopoulos, Michael J Chen, Zhi-Jian Liu, James R Connor, Lorene M Lanier, Martha C Sola-Visner, Michael K Georgieff
BACKGROUND: Thrombocytopenia is common in sick neonates. Thrombopoietin mimetics (e.g., eltrombopag (ELT)) might provide an alternative therapy for selected neonates with severe and prolonged thrombocytopenia, and for infants and young children with different varieties of thrombocytopenia. However, ELT chelates intracellular iron, which may adversely affect developing organs with high metabolic requirements. Iron deficiency (ID) is particularly deleterious during brain development, impairing neuronal myelination, dopamine signaling, and dendritic maturation and ultimately impairing long-term neurological function (e...
December 22, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28001351/proteoform-specific-protein-binding-of-small-molecules-in-complex-matrices
#11
Geuncheol Gil, Pan Mao, Bharathi Avula, Zulfiqar Ali, Amar G Chittiboyina, Ikhlas A Khan, Larry A Walker, Daojing Wang
Characterizing the specific binding between protein targets and small molecules is critically important for drug discovery. Conventional assays require isolation and purification of small molecules from complex matrices through multistep chromatographic fractionation, which may alter their original bioactivity. Most proteins undergo posttranslational modification, and only certain proteoforms have the right conformation with accessible domains and available residues for small molecule binding. We developed a top-down mass spectrometry (MS) centric workflow for rapid evaluation of the bioactivity of crude botanical extracts after a one-step reaction...
December 21, 2016: ACS Chemical Biology
https://www.readbyqxmd.com/read/27998819/quantamatrix-multiplexed-assay-platform-system-for-direct-detection-of-bacteria-and-antibiotic-resistance-determinants-in-positive-blood-culture-bottles
#12
Hye-Young Wang, Young Uh, Seoyong Kim, Hyeyoung Lee
OBJECTIVES: Rapid and accurate identification of the causative pathogens of bloodstream infections (BSIs) is crucial for initiating an appropriate antimicrobial therapy which decreases the related morbidity and mortality rates. The aim of this study was to evaluate the usefulness of a newly developed multiplexed, bead-based bioassay system [i.e., the Quantamatrix Multiplexed Assay Platform (QMAP)], obtained directly from blood culture bottles, to simultaneously detect the presence of bacteria and identify the genes for antibiotic resistance...
December 17, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27989942/maldi-tof-mass-spectrometry-for-rapid-diagnosis-of-postoperative-endophthalmitis
#13
Adriane Mailhac, Harmonie Durand, Sandrine Boisset, Danièle Maubon, Francois Berger, Max Maurin, Christophe Chiquet, Marie Bidart
This study describes an innovative strategy for rapid detection and identification of bacteria causing endophthalmitis, combining the use of an automated blood culture system with MALDI-TOF mass spectrometry methodology. Using this protocol, we could identify 96% of 45 bacterial strains isolated from vitreous samples collected in acute post-operative endophthalmitis patients.
January 30, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/27974860/a-novel-microfluidic-assay-for-rapid-phenotypic-antibiotic-susceptibility-testing-of-bacteria-detected-in-clinical-blood-cultures
#14
Christer Malmberg, Pikkei Yuen, Johanna Spaak, Otto Cars, Thomas Tängdén, Pernilla Lagerbäck
BACKGROUND: Appropriate antibiotic therapy is critical in the management of severe sepsis and septic shock to reduce mortality, morbidity and health costs. New methods for rapid antibiotic susceptibility testing are needed because of increasing resistance rates to standard treatment. AIMS: The purpose of this study was to evaluate the performance of a novel microfluidic method and the potential to directly apply this method on positive blood cultures. METHODS: Minimum inhibitory concentrations (MICs) of ciprofloxacin, ceftazidime, tigecycline and/or vancomycin for Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae and Staphylococcus aureus were determined using a linear antibiotic concentration gradient in a microfluidic assay...
2016: PloS One
https://www.readbyqxmd.com/read/27974697/surrogate-in-vitro-activation-of-innate-immunity-synergizes-with-interleukin-7-to-unleash-rapid-antigen-driven-outgrowth-of-cd4-and-cd8-human-peripheral-blood-t-cells-naturally-recognizing-muc1-her2-neu-and-other-tumor-associated-antigens
#15
Latha B Pathangey, Dustin B McCurry, Sandra J Gendler, Ana L Dominguez, Jessica E Gorman, Girish Pathangey, Laurie A Mihalik, Yushe Dang, Mary L Disis, Peter A Cohen
Effective adoptive immunotherapy has proved elusive for many types of human cancer, often due to difficulties achieving robust expansion of natural tumor-specific T-cells from peripheral blood. We hypothesized that antigen-driven T-cell expansion might best be triggered in vitro by acute activation of innate immunity to mimic a life-threatening infection. Unfractionated peripheral blood mononuclear cells (PBMC) were subjected to a two-step culture, first synchronizing their exposure to exogenous antigens with aggressive surrogate activation of innate immunity, followed by γ-chain cytokine-modulated T-cell hyperexpansion...
December 11, 2016: Oncotarget
https://www.readbyqxmd.com/read/27965913/blood-plasma-of-patients-with-parkinson-s-disease-increases-alpha-synuclein-aggregation-and-neurotoxicity
#16
Peng Wang, Xin Li, Xuran Li, Weiwei Yang, Shun Yu
A pathological hallmark of Parkinson's disease (PD) is formation of Lewy bodies in neurons of the brain. This has been attributed to the spread of α-synuclein (α-syn) aggregates, which involves release of α-syn from a neuron and its reuptake by a neighboring neuron. We found that treatment with plasma from PD patients induced more α-syn phosphorylation and oligomerization than plasma from normal subjects (NS). Compared with NS plasma, PD plasma added to primary neuron cultures caused more cell death in the presence of extracellular α-syn...
2016: Parkinson's Disease
https://www.readbyqxmd.com/read/27959391/tissue-inhibitor-of-metalloproteinases-1-a-novel-biomarker-of-tuberculosis
#17
Yingyu Chen, Jieru Wang, Pan Ge, Dejun Cao, Beiping Miao, Ian Robertson, Xia Zhou, Li Zhang, Huanchun Chen, Aizhen Guo
Tuberculosis (TB) is an important infectious disease of humans and other animals. Conventional diagnostic methods, including the tuberculin skin test, chest X‑rays and bacterial culture, have certain innate disadvantages for the early, rapid and specific diagnosis of tuberculosis. The present study aimed to identify a novel diagnostic biomarker to overcome these disadvantages. The potential target identified in the present study was tissue inhibitor of metalloproteinases 1 (TIMP‑1), which has previously been demonstrated to be critical in the immune response to TB...
January 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27932084/a-novel-method-for-the-rapid-detection-of-microbes-in-blood-using-pleurocidin-antimicrobial-peptide-functionalized-piezoelectric-sensor
#18
Xiaohong Shi, Xiaoqing Zhang, Qiongqiong Yao, Fengjiao He
The rapid detection of microbes is critical in clinical diagnosis and food safety. Culture-dependent assays are the most widely used microbial detection methods, but these assays are time-consuming. In this study, a rapid microbial detection method was proposed using a pleurocidin/single-walled carbon nanotubes/interdigital electrode-multichannel series piezoelectric quartz crystal (pleurocidin/SWCNT/IDE-MSPQC) sensor. The selected pleurocidin antimicrobial peptide served as a recognition probe that exhibits broad-spectrum antimicrobial activity and the SWCNT acted as the electronic transducer and cross-linker for the immobilization of pleurocidin on the IDE...
December 6, 2016: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27928186/implementation-of-a-pharmacist-directed-antimicrobial-stewardship-protocol-utilizing-rapid-diagnostic-testing
#19
Angel Heyerly, Ron Jones, Gordon Bokhart, Mary Shoaff, Douglas Fisher
Background: Rapid identification of gram-positive bacteria and resistance determinants from blood cultures can reduce the time to optimal antibiotic therapy. Objective: This study evaluates the use of technology to rapidly identify gram-positive bacteria in combination with a pharmacist-directed antimicrobial stewardship protocol in a tertiary-care facility. Methods: Rapid diagnostic testing was performed on gram-positive blood cultures. Pharmacists were instructed to notify prescribers of results and recommend appropriate antimicrobial therapy based on targeted treatment chart...
November 2016: Hospital Pharmacy
https://www.readbyqxmd.com/read/27924986/a-nasba-on-microgel-tethered-molecular-beacon-microarray-for-real-time-microbial-molecular-diagnostics
#20
Y Ma, X Dai, T Hong, G B Munk, M Libera
Despite their many advantages and successes, molecular beacon (MB) hybridization probes have not been extensively used in microarray formats because of the complicating probe-substrate interactions that increase the background intensity. We have previously shown that tethering to surface-patterned microgels is an effective means for localizing MB probes to specific surface locations in a microarray format while simultaneously maintaining them in as water-like an environment as possible and minimizing probe-surface interactions...
December 19, 2016: Analyst
keyword
keyword
119135
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"