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Microbiology automation

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https://www.readbyqxmd.com/read/28087144/-contribution-of-microbiology-in-the-diagnosis-of-tuberculosis-in-castile-and-le%C3%A3-n-spain-findings-of-the-grumicale-2013-study
#1
Ramiro López-Medrano, Teresa Nebreda-Mayoral, M Fé Brezmes-Valdivieso, Susana García-de Cruz, Begoña Nogueira-González, Rafael Sánchez-Arroyo, Almudena Tinajas-Puertas, Nieves Gutiérrez-Zufiaurre, Cristina Labayru-Echeverría, Susana Hernando-Real, Luis López-Urrutia, Octavio Rivero-Lezcano, Belén Ullivarri-Francia, Raquel Rodríguez-Tarazona, Isabel Antolín-Ayala
INTRODUCTION AND OBJECTIVES: A retrospective study was conducted by collecting microbiological tuberculosis (TB) data in Castile and León during the year 2013 in order to determine the incidence and distribution of TB, and resistance to the tuberculostatic drug, and compare them with the epidemiological data provided by the Department of Epidemiological Surveillance (SIVE). MATERIAL AND METHODS: Microbiologists of the 14 hospitals of the Castile and León public health network (GRUMICALE) collected epidemiological, microbiological, and management data from the Microbiology laboratories in the community during the year 2013...
January 10, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28068884/evaluation-of-protein-spectra-cluster-analysis-for-streptococcus-spp-identification-from-various-swine-clinical-samples
#2
Carlos E C Matajira, Luisa Z Moreno, Vasco T M Gomes, Ana Paula S Silva, Renan E Mesquita, Daniela S Doto, Franco F Calderaro, Fernando N de Souza, Ana Paula G Christ, Maria Inês Z Sato, Andrea M Moreno
Traditional microbiological methods enable genus-level identification of Streptococcus spp. isolates. However, as the species of this genus show broad phenotypic variation, species-level identification or even differentiation within the genus is difficult. Herein we report the evaluation of protein spectra cluster analysis for the identification of Streptococcus species associated with disease in swine by means of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). A total of 250 S...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28067541/listeria-monocytogenes-circulating-in-rabbit-meat-products-and-slaughterhouses-in-italy-prevalence-data-and-comparison-among-typing-results
#3
Alessandra De Cesare, Antonio Parisi, Renzo Mioni, Damiano Comin, Alex Lucchi, Gerardo Manfreda
Rabbit meat has outstanding dietetic and nutritional properties. However, few data on microbiological hazards associated with rabbit productions are available. In this study, the presence of Listeria monocytogenes was determined in 430 rabbit carcasses, 256 rabbit meat cuts and products, and 599 environmental sponges collected from four Italian rabbit slaughterhouses over a period of 1 year. Prevalence of L. monocytogenes among the 1285 rabbit meat and environmental samples was 11%, with statistically significant differences between slaughterhouses...
January 9, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28066816/from-genomes-to-phenotypes-traitar-the-microbial-trait-analyzer
#4
Aaron Weimann, Kyra Mooren, Jeremy Frank, Phillip B Pope, Andreas Bremges, Alice C McHardy
The number of sequenced genomes is growing exponentially, profoundly shifting the bottleneck from data generation to genome interpretation. Traits are often used to characterize and distinguish bacteria and are likely a driving factor in microbial community composition, yet little is known about the traits of most microbes. We describe Traitar, the microbial trait analyzer, which is a fully automated software package for deriving phenotypes from a genome sequence. Traitar provides phenotype classifiers to predict 67 traits related to the use of various substrates as carbon and energy sources, oxygen requirement, morphology, antibiotic susceptibility, proteolysis, and enzymatic activities...
November 2016: MSystems
https://www.readbyqxmd.com/read/28053214/the-bactec-fx-blood-culture-system-detects-brucella-melitensis-bacteremia-in-adult-patients-within-the-routine-one-week-incubation-period
#5
Moshe Sagi, Lior Nesher, Pablo Yagupsky
The performance of the BACTEC FX blood culture system for detecting Brucella bacteremia within the routine one-week incubation period was assessed in a prospective study conducted in an endemic area for B. melitensis in southern Israel. Aerobic vials (BD BACTEC™ Plus Aerobic/F Medium) inoculated with blood specimens obtained from adult patients with a positive Rose-Bengal screening test were monitored for four consecutive weeks and blind subcultures of negative vials were performed on solid media on days 7 and 28...
January 4, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28043600/benefits-and-challenges-of-molecular-diagnostics-for-childhood-tuberculosis
#6
Cristina Gutierrez
Expanding tuberculosis (TB)-diagnostic services, including access to rapid tests, is a World Health Organization (WHO) strategy to accelerate progress toward ending TB. Faster and more sensitive molecular tests capable of diagnosing TB and drug-resistant TB have the technical capacity to address limitations associated with smears and cultures by increasing accuracy and shortening turnaround times as compared with those of these conventional laboratory methods. Nucleic acid amplification assays used to detect and analyze Mycobacterium tuberculosis (MTB)-complex nucleic acids can be used directly on specimens from patients suspected of having TB...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28003626/methods-of-rapid-microbiological-assay-and-their-application-to-pharmaceutical-and-medical-device-fabrication
#7
REVIEW
Hideharu Shintani
 There are several rapid microbiological methods becoming available that have useful applications in pharmaceutical and medical devices. They are ATP bioluminescence, fluorescent labeling, electrical resistance, and nucleic acid probes. In choosing to employ rapid methods, the microbiologist should examine their prospective performances against the specific requirements for that sector. Some methods may require expensive equipment and offer full automation, and others represent only a small investment. The regulatory view of these methods is changing and they still officially have not been approved in medical and pharmaceutical area, but it will still be up to the microbiologist to demonstrate that the method chosen is fit for the purpose intended...
2016: Biocontrol Science
https://www.readbyqxmd.com/read/27993473/evaluation-of-%C3%AE-d-glucuronidase-and-particle-size-distribution-for-microbiological-water-quality-monitoring-in-northern-vietnam
#8
Anna Ender, Nadine Goeppert, Felix Grimmeisen, Nico Goldscheider
In many karst regions in developing countries, the populations often suffer from poor microbial water quality and are frequently exposed to bacterial pathogens. The high variability of water quality requires rapid assays, but the conventional cultivation-based analysis of fecal indicator bacteria, such as Escherichia coli (E. coli), is very time-consuming. In this respect, the measurement of the enzymatic activity of E. coli could prove to be a valuable tool for water quality monitoring. A mobile automated prototype device was used for the investigation of β-d-glucuronidase (GLUC) activity at a remote karst spring, connected to a sinking surface stream, in Northern Vietnam...
December 16, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27955641/microbial-phenomics-information-extractor-micropie-a-natural-language-processing-tool-for-the-automated-acquisition-of-prokaryotic-phenotypic-characters-from-text-sources
#9
Jin Mao, Lisa R Moore, Carrine E Blank, Elvis Hsin-Hui Wu, Marcia Ackerman, Sonali Ranade, Hong Cui
BACKGROUND: The large-scale analysis of phenomic data (i.e., full phenotypic traits of an organism, such as shape, metabolic substrates, and growth conditions) in microbial bioinformatics has been hampered by the lack of tools to rapidly and accurately extract phenotypic data from existing legacy text in the field of microbiology. To quickly obtain knowledge on the distribution and evolution of microbial traits, an information extraction system needed to be developed to extract phenotypic characters from large numbers of taxonomic descriptions so they can be used as input to existing phylogenetic analysis software packages...
December 13, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/27837517/microarray-technologies-in-fungal-diagnostics
#10
Steffen Rupp
Microarray technologies have been a major research tool in the last decades. In addition they have been introduced into several fields of diagnostics including diagnostics of infectious diseases. Microarrays are highly parallelized assay systems that initially were developed for multiparametric nucleic acid detection. From there on they rapidly developed towards a tool for the detection of all kind of biological compounds (DNA, RNA, proteins, cells, nucleic acids, carbohydrates, etc.) or their modifications (methylation, phosphorylation, etc...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27805525/microbiologic-investigation-of-patients-before-living-donor-liver-transplant
#11
Nelya Bissenova, Aigerim Yergaliyeva
OBJECTIVES: Chronic infections can cause serious complications and create morbidity and mortality for affected patients during immunosuppressive therapy in the posttransplant period. Here, we studied the microbiologic screening results of patients before living-donor liver transplant. MATERIALS AND METHODS: The microbiologic screening results of 25 patients during 2015 at National Scientific Research Center (Astana, Kazakhstan) before livingdonor liver transplant were prospectively analyzed...
2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27805513/microbiologic-monitoring-of-kidney-transplant-recipients-before-transplant
#12
Nelya Bissenova, Aigerim Yergaliyeva
OBJECTIVES: Drug immunosuppression, traditionally used to minimize autoimmune developments after liver, kidney, heart, and lung transplant, and which requires high doses of corticosteroids, creates favorable conditions for the development of various infectious processes and the existence of pathogens, which can be activated after transplant. This study aimed to investigate the bacterial pathogens in patients before living-donor kidney transplant. MATERIALS AND METHODS: We prospectively investigated 117 clinical samples of 33 patients who were seen during 2015 at the National Scientific Research Center (Astana, Kazakhstan) before living-donor kidney transplant...
2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27801488/peritoneal-dialysis-experience-of-the-department-of-pediatrics-of-the-hospital-charles-nicolle-of-tunis
#13
Manel Jellouli, Meriem Ferjani, Amal Oueslati, Kamel Abidi, Ouns Naija, Yousra Hammi, Taieb Ben Abdallah, Tahar Gargah
Introduction Peritoneal dialysis (PD) is still the most common modality used in treatment for children with End Stage Renal Disease (ESRD). The objective of this study was to identify the epidemiological, clinical, and microbiological factors affecting the outcome of PD. Methods In this study, we retrospectively reviewed the records of 85 patients who were treated with DP for the last ten years (from January 2004 to December 2013) in the Department of Pediatrics in Charles Nicolle hospital, Tunis. Results The mean duration of PD was 18...
May 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/27766214/an-overview-on-novel-microbial-determination-methods-in-pharmaceutical-and-food-quality-control
#14
Mahboob Nemati, Aliasghar Hamidi, Solmaz Maleki Dizaj, Vahid Javaherzadeh, Farzaneh Lotfipour
Traditional microbiological methods tend to be labor-intensive and time-consuming. Rapid and novel methods in microbiological tests provide more sensitive, precise and reproducible results compared with conventional methods. In microbiology, the most rapid testing methods belong to the field of biotechnology such as PCR, ELISA, ATP bioluminescence and etc. Nevertheless impedance microbiology, biosensors and analytical procedures to determine microbial constituents are of significance. The present review article was conducted using internet databases and related scientific literatures and articles that provide information on developments in the rapid methods in microbiology...
September 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27763479/an-appropriately-performed-conventional-blood-culture-can-facilitate-choice-of-therapy-in-resource-constrained-settings-comparison-with-bactec-9050
#15
COMPARATIVE STUDY
P V Surase, G Nataraj, K Pattamadai, P R Mehta, A R Pazare, M C Agarwal, R N Nanavati
AIMS: Comparison of conventional blood culture with BACTEC 9050 for rate and time to detection of microorganisms. SETTINGS AND DESIGN: A prospective study was carried out in a multispecialty tertiary care teaching hospital. SUBJECTS AND METHODS: A total of 835 paired specimens (797 blood and 38 nonblood specimens) were collected and processed according to standard microbiological procedures by both conventional method as well as by BACTEC 9050 automated culture system...
October 2016: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/27739025/prevalence-of-neisseria-meningitidis-carriage-with-identification-of-serogroups-and-genogroups-in-professional-soldiers
#16
Krzysztof Korzeniewski, M Konior, M Kiedrowska, E Wódka, E Zwolińska, A Skoczyńska
The article presents the prevalence of Neisseria meningitidis carriage with the identification of sero- and genogroups in professional soldiers serving in the Polish Armed Forces. A total of 1246 soldiers from the 10th Armored Cavalry Brigade in Świętoszów, Poland were examined in the period January-February 2016. Microbiological tests were performed using standard methods (culture, incubation, microscopy, biochemical, and automated identification with VITEK cards). Neisseria meningitidis isolates from carriers were subjected to a slide agglutination test for the identification of serogroups, next bacterial DNA was isolated and genogroups were identified based on the results of PCR...
October 14, 2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27723450/fully-automated-clinical-grade-bone-marrow-processing-a-single-centre-experience
#17
Benedetta Mazzanti, Serena Urbani, Simone Dal Pozzo, Paola Bufano, Lara Ballerini, Alessia Gelli, Irene Sodi, Irene Donnini, Massimo Di Gioia, Stefano Guidi, Julien Camisani, Riccardo Saccardi
BACKGROUND: Clinical grade processing of harvested bone marrow is required in various clinical situations, particularly in the management of ABO mismatching in allogeneic haematopoietic stem cell transplantation (HSCT) and in regenerative medicine. MATERIAL AND METHODS: We report a single-centre experience using a fully automated, clinical grade, closed system (Sepax, Biosafe, Switzerland). From 2003 to 2015, 125 procedures were performed in our laboratory, including buffy-coat production for HSCT (n=58), regenerative medicine in an orthopaedic setting (n=54) and density-gradient separation in a trial for treatment of critical limb ischaemia (n=13)...
September 27, 2016: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/27716472/efficiency-of-a-cleaning-protocol-for-the-removal-of-enterotoxigenic-staphylococcus-aureus-strains-in-dairy-plants
#18
José Guilherme Prado Martin, Gabriela de Oliveira E Silva, Carolina Rodrigues da Fonseca, Caio Baptista Morales, Caroline Souza Pamplona Silva, Daniel Lima Miquelluti, Ernani Porto
Staphylococci are considered a major concern in dairy plants mainly due to the intensive production flow, automation of processing plants and increased demand in the microbiological quality of dairy products. This study aimed to identify S. aureus strains isolated from three Brazilian dairy plants, evaluate the influence of time, temperature and contact surface on the bacterial adhesion process, as well as the efficiency of simulated hygiene and sanitation protocol in removing adhered cells. For genotypic analyses, the presence of icaA and icaD in strains was evaluated...
December 5, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27697104/validation-of-the-applied-biosystems-rapidfinder-shiga-toxin-producing-e-coli-stec-detection-workflow
#19
Sharon Matheny, Robert Tebbs, Erin Crowley, David Goins, Angelia Burrell, Patrick Bird, Michelle Swimley, M Joseph Benzinger, Jonathan Flannery, Jonathan Cloke, James Agin, Benjamin Bastin
The Applied Biosystems™ RapidFinder™ STEC Detection Workflow (Thermo Fisher Scientific) is a complete protocol for the rapid qualitative detection of Escherichia coli (E. coli) O157:H7 and the "Big 6" non-O157 Shiga-like toxin-producing E. coli (STEC) serotypes (defined as serogroups: O26, O45, O103, O111, O121, and O145). The RapidFinder STEC Detection Workflow makes use of either the automated preparation of PCR-ready DNA using the Applied Biosystems PrepSEQ™ Nucleic Acid Extraction Kit in conjunction with the Applied Biosystems MagMAX™ Express 96-well magnetic particle processor or the Applied Biosystems PrepSEQ Rapid Spin kit for manual preparation of PCR-ready DNA...
October 1, 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/27683527/interpretation-of-blood-microbiology-results-function-of-the-clinical-microbiologist
#20
Katalin Kristóf, Júlia Pongrácz
The proper use and interpretation of blood microbiology results may be one of the most challenging and one of the most important functions of clinical microbiology laboratories. Effective implementation of this function requires careful consideration of specimen collection and processing, pathogen detection techniques, and prompt and precise reporting of identification and susceptibility results. The responsibility of the treating physician is proper formulation of the analytical request and to provide the laboratory with complete and precise patient information, which are inevitable prerequisites of a proper testing and interpretation...
April 2016: EJIFCC
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