keyword
MENU ▼
Read by QxMD icon Read
search

current microbiology

keyword
https://www.readbyqxmd.com/read/28427796/molecular-methods-for-septicemia-diagnosis
#1
Francesc Marco
Septicemia remains a major cause of hospital mortality. Blood culture remains the best approach to identify the etiological microorganisms when a bloodstream infection is suspected but it takes long time because it relies on bacterial or fungal growth. The introduction in clinical microbiology laboratories of the matrix-assisted laser desorption ionization time-of-flight mass spectrometry technology, DNA hybridization, microarrays or rapid PCR-based test significantly reduce the time to results. Tests for direct detection in whole blood samples are highly desirable because of their potential to identify bloodstream pathogens without waiting for blood cultures to become positive...
April 17, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28423168/the-significance-of-candida-in-the-human-respiratory-tract-our-evolving-understanding
#2
Kathryn M Pendleton, Gary B Huffnagle, Robert P Dickson
Candida is an opportunistic pathogen and the most commonly isolated fungal genus in humans. Though Candida is often detected in respiratory specimens from humans with and without lung disease, its significance remains undetermined. While historically considered a commensal organism with low virulence potential, the status of Candida as an innocent bystander has recently been called into question by both clinical observations and animal experimentation. We here review what is currently known and yet to be determined about the clinical, microbiological and pathophysiological significance of the detection of Candida spp...
April 1, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28421881/factors-pivotal-for-designing-of-nanoantimicrobials-an-exposition
#3
Bushra Jamil, Muhammad Imran
Understanding the interplay between bacterial pathogens and antimicrobials is a key to realize the control over infections causing morbidity and mortality. An important current issue of contemporary medicine and microbiology is the search for new strategies for adequate therapy of infectious diseases associated with rapidly emerging multidrug-resistant (MDR) pathogens. Recently, a great deal of progress has been made in the field of nanobiotechnology towards the development of various nanoantimicrobials (NAMs) as novel therapeutic solution...
April 19, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28413102/-antibiotic-susceptibility-of-staphylococcus-aureus-and-streptococcus-pneumoniae-in-healthy-carrier-individuals-in-primary-care-in-barcelona-area
#4
Carles Llor, Albert Boada, Mariona Pons-Vigués, Elisabet Grenzner, Rosa Juvé, Jesús Almeda
INTRODUCTION: The information available on antibiotic resistance patterns are generally based on specimens from hospitalised individuals. This study was aimed at evaluating the antibiotic resistance rate of nasal carriage strains of Staphylococcus aureus and Streptococcus pneumoniae in healthy individuals, in accordance with age and gender, attended in Primary Care Centres (PCC). DESIGN: Cross-sectional study. SETTING: Seven PCC in the Barcelona area...
April 13, 2017: Atencion Primaria
https://www.readbyqxmd.com/read/28412931/prevalence-of-escherichia-coli-o157-h7-in-beef-cattle-at-slaughter-and-beef-carcasses-at-retail-shops-in-ethiopia
#5
Rosa Abdissa, Woynshet Haile, Akafete Teklu Fite, Ashenafi Feyisa Beyi, Getahun E Agga, Bedaso Mammo Edao, Fanos Tadesse, Mesula Geloye Korsa, Takele Beyene, Tariku Jibat Beyene, Lieven De Zutter, Eric Cox, Bruno Maria Goddeeris
BACKGROUND: There is paucity of information regarding the epidemiology of Escherichia coli O157: H7 in developing countries. In this study, we investigated the occurrence of E. coli O157: H7 associated with beef cattle at processing plants and at retail shops in Ethiopia. METHODS: Various samples were collected from beef cattle at slaughter/processing plants, carcass at retail shops and humans at health centers. E. coli O157: H7 was isolated, identified and characterized for antimicrobial resistance, using standard microbiological methods...
April 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28412024/prevalence-of-bacterial-contamination-in-platelet-concentrates-at-the-national-center-of-blood-transfusion-mexico
#6
G Ibáñez-Cervantes, J M Bello-López, V Fernández-Sánchez, C A Domínguez-Mendoza, L I Acevedo-Alfaro
OBJECTIVES: Most common bacterial sepsis associated with transfusion is caused by contaminated Platelet Concentrates (PC). The screening of PC to detect bacterial contamination is obligatory in Mexico, and it is carried out in quality control programs. In Mexico, the identification and molecular characterization of bacterial contaminants to detect contamination sources have not been implemented due to high costs; however, it is an actual current need. MATERIAL AND METHODS: One hundred PC were randomly selected and microbiologically analyzed...
April 12, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28409380/bacterial-thiol-oxidoreductases-from-basic-research-to-new-antibacterial-strategies
#7
REVIEW
Katarzyna M Bocian-Ostrzycka, Magdalena J Grzeszczuk, Anna M Banaś, Elżbieta Katarzyna Jagusztyn-Krynicka
The recent, rapid increase in bacterial antimicrobial resistance has become a major public health concern. One approach to generate new classes of antibacterials is targeting virulence rather than the viability of bacteria. Proteins of the Dsb system, which play a key role in the virulence of many pathogenic microorganisms, represent potential new drug targets. The first part of the article presents current knowledge of how the Dsb system impacts function of various protein secretion systems that influence the virulence of many pathogenic bacteria...
April 13, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28404672/increased-tuberculosis-patient-mortality-associated-with-mycobacterium-tuberculosis-mutations-conferring-resistance-to-second-line-antituberculous-drugs
#8
Sophia B Georghiou, Marva Seifert, Donald G Catanzaro, Richard S Garfein, Timothy C Rodwell
Rapid molecular diagnostics have great potential to limit the spread of multi- and extensively drug-resistant tuberculosis (M/XDR-TB). These technologies detect mutations in the Mycobacterium tuberculosis (Mtb) genome that confer phenotypic drug resistance. However, there is little data published regarding the relationships between the detected Mtb resistance mutations and M/XDR-TB treatment outcomes, limiting our current ability to exploit the full potential of molecular diagnostics. We analyzed clinical, microbiological and sequencing data for 451 patients and their clinical isolates collected in a multinational, observational cohort study to determine if there was an association between Mtb resistance mutations and patient mortality...
April 12, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28404649/the-microbiome-in-respiratory-medicine-current-challenges-and-future-perspectives
#9
REVIEW
Rosa Faner, Oriol Sibila, Alvar Agustí, Eric Bernasconi, James D Chalmers, Gary B Huffnagle, Chaysavanh Manichanh, Philip L Molyneaux, Roger Paredes, Vicente Pérez Brocal, Julia Ponomarenko, Sanjay Sethi, Jordi Dorca, Eduard Monsó
The healthy lung has previously been considered to be a sterile organ because standard microbiological culture techniques consistently yield negative results. However, culture-independent techniques report that large numbers of microorganisms coexist in the lung. There are many unknown aspects in the field, but available reports show that the lower respiratory tract microbiota: 1) is similar in healthy subjects to the oropharyngeal microbiota and dominated by members of the Firmicutes, Bacteroidetes and Proteobacteria phyla; 2) shows changes in smokers and well-defined differences in chronic respiratory diseases, although the temporal and spatial kinetics of these changes are only partially known; and 3) shows relatively abundant non-cultivable bacteria in chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis, cystic fibrosis and bronchiectasis, with specific patterns for each disease...
April 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28400755/comparative-evaluation-of-four-bacteria-specific-primer-pairs-for-16s-rrna-gene-surveys
#10
Sofie Thijs, Michiel Op De Beeck, Bram Beckers, Sascha Truyens, Vincent Stevens, Jonathan D Van Hamme, Nele Weyens, Jaco Vangronsveld
Bacterial taxonomic community analyses using PCR-amplification of the 16S rRNA gene and high-throughput sequencing has become a cornerstone in microbiology research. To reliably detect the members, or operational taxonomic units (OTUs), that make up bacterial communities, taxonomic surveys rely on the use of the most informative PCR primers to amplify the broad range of phylotypes present in up-to-date reference databases. However, primers specific for the domain Bacteria were often developed some time ago against database versions that are now out of date...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28395861/dissemination-and-clinical-implications-of-multidrug-resistant-klebsiella-pneumoniae-isolates-producing-oxa-48-in-a-spanish-hospital
#11
A Madueño, J González García, S Fernández-Romero, J Oteo, M Lecuona
BACKGROUND: Healthcare-associated infections caused by Klebsiella pneumoniae isolates are increasing and few effective antibiotics are currently available to treat patients. AIM: To assess the epidemiology, molecular basis, clinical features, and outcomes in the acquisition and dissemination of OXA-48-producing K. pneumoniae (OXA48KP) in a tertiary Spanish hospital between October 2013 and December 2015. METHODS: Clinical, demographic, and microbiological data of patients with OXA48KP in clinical samples were collected from medical records...
March 3, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28395369/antibiotics-prescriptions-in-the-neonatal-intensive-care-unit-how-to-overcome-everyday-challenges
#12
D Donà, E Mozzo, V Mardegan, U Trafojer, P Lago, S Salvadori, E Baraldi, C Giaquinto
Antimicrobial prescriptions in neonatal intensive care units (NICUs) represent a point of concern for the emergence of MDROs and for morbidity associated with prolonged antibiotic exposure (e.g., invasive candidiasis, necrotizing enterocolitis, and late-onset sepsis). Antimicrobial stewardship programs (ASPs) have shown to be a valuable tool for the prevention of resistance with the goals of optimizing clinical outcomes while decreasing unnecessary prescribing. The most frequent ASP strategies include the correct collection and interpretation of microbiological specimens, prescription of the narrowest-spectrum antibiotic appropriate for a particular case, and de-escalation or discontinuation of therapy in defined situations...
April 10, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28392724/an-overview-of-the-european-organization-for-external-quality-assurance-providers-in-laboratory-medicine-eqalm
#13
REVIEW
Anne Stavelin, Xavier Albe, Piet Meijer, Erika Sarkany, Finlay MacKenzie
The European Organisation for External Quality Assurance Providers in Laboratory Medicine (EQALM) was founded in 1996 and currently has members from 29 European countries and 6 countries from outside Europe. EQALM provides a forum for co-operation and exchange of knowledge on quality-related matters in laboratory medicine, especially with regard to external quality assessment (EQA) programs in Europe. In addition, EQALM represent the EQA providers in laboratory medicine at European level vis-ŕ-vis political, professional, scientific and other bodies, including patients' organisations...
February 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/28379967/isolation-of-dengue-virus-from-the-upper-respiratory-tract-of-four-patients-with-dengue-fever
#14
Nai-Ming Cheng, Bao-Chen Chen, Tsi-Shu Huang, Cheng Len Sy, Susan Shin-Jung Lee, Yao-Shen Chen
BACKGROUND: Dengue fever is an important arboviral disease. The clinical manifestations vary from a mild non-specific febrile syndrome to severe life-threatening illness. The virus can usually be detected in the blood during the early stages of the disease. Dengue virus has also has been found in isolated cases in the cerebrospinal fluid, urine, nasopharyngeal sections and saliva. In this report, we describe the isolation of dengue virus from the upper respiratory tract of four confirmed cases of dengue...
April 5, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28377755/production-of-superoxide-in-bacteria-is-stress-and-cell-state-dependent-a-gating-optimized-flow-cytometry-method-that-minimizes-ros-measurement-artifacts-with-fluorescent-dyes
#15
Megan E McBee, Yok H Chionh, Mariam L Sharaf, Peiying Ho, Maggie W L Cai, Peter C Dedon
The role of reactive oxygen species (ROS) in microbial metabolism and stress response has emerged as a major theme in microbiology and infectious disease. Reactive fluorescent dyes have the potential to advance the study of ROS in the complex intracellular environment, especially for high-content and high-throughput analyses. However, current dye-based approaches to measuring intracellular ROS have the potential for significant artifacts. Here, we describe a robust platform for flow cytometric quantification of ROS in bacteria using fluorescent dyes, with ROS measurements in 10s-of-1000s of individual cells under a variety of conditions...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28375806/microbiomic-analysis-of-intra-abdominal-infections-by-using-denaturing-high-performance-liquid-chromatography-a-prospective-observational-study
#16
Christian Koch, Anca L Amati, Andreas Hecker, Marcel Höxter, Marcus Hirschburger, Reginald Matejec, Winfried Padberg, Marcus A Weigand, Christoph Lichtenstern, Eugen Domann
BACKGROUND: Intra-abdominal infections represent a subgroup of septic syndromes with high death rates and the need for prompt and appropriate antimicrobial therapy. Conventional culture-based microbial identification has notable shortcomings in the diagnostics of polymicrobial infections. Modern culture-independent molecular methods may represent a new diagnostic approach. The current study aimed to compare the results obtained from the denaturing high-performance liquid chromatography WAVE(®) system as a culture-independent diagnostic tool with those obtained from standard culture-based microbiologic testing in the clinical setting of severe intra-abdominal sepsis...
April 4, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28359845/detection-of-cytomegalovirus-drug-resistance-mutations-in-solid-organ-transplant-recipients-with-suspected-resistance
#17
Rubén López-Aladid, Alba Guiu, Gemma Sanclemente, Francisco López-Medrano, Frederic Cofán, M Mar Mosquera, Julián Torre-Cisneros, Elisa Vidal, Asunción Moreno, Jose Maria Aguado, Elisa Cordero, Cecilia Martin-Gandul, Pilar Pérez-Romero, Jordi Carratalá, Nuria Sabé, Jordi Niubó, Carlos Cervera, Anna Cervilla, Marta Bodro, Patricia Muñoz, Carmen Fariñas, M Gemma Codina, Maitane Aranzamendi, Miguel Montejo, Oscar Len, M Angeles Marcos
BACKGROUND: Current guidelines recommend that treatment of resistant cytomegalovirus (CMV) in solid organ transplant (SOT) recipients must be based on genotypic analysis. However, this recommendation is not systematically followed. OBJECTIVES: To assess the presence of mutations associated with CMV resistance in SOT recipients with suspected resistance, their associated risk factors and the clinical impact of resistance. STUDY DESIGN: Using Sanger sequencing we prospectively assessed the presence of resistance mutations in a nation-wide prospective study between September 2013-August 2015...
March 21, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28355995/new-advances-in-infant-feeding-new-products-and-novel-technologies
#18
M C Pina-Pérez, A Martínez, D Rodrigo
BACKGROUND: Breastfeeding is the best way to provide ideal food for infants. However, there are many situations in which breastfeeding is unviable (maternal illness, hygiene problems, intravenous feeding requirement, storage). Safe, efficient, and nutritious products should be offered by the industry to mothers and healthcare professionals as an alternative. OBJECTIVE: The present review aims to update the state of the art regarding the most innovative developments in infant feeding formulation and, the promising novel technologies that are being investigated to achieve a balance between the microbiological stability, organoleptic and nutritional value of babyfood...
March 28, 2017: Recent Patents on Food, Nutrition & Agriculture
https://www.readbyqxmd.com/read/28355464/early-diagnosis-of-invasive-mould-infections-and-disease
#19
Frédéric Lamoth, Thierry Calandra
Invasive mould infections (IMIs), such as invasive aspergillosis or mucormycosis, are a major cause of death in patients with haematological cancer and in patients receiving long-term immunosuppressive therapy. Early diagnosis and prompt initiation of antifungal therapy are crucial steps in the management of patients with IMI. The diagnosis of IMI remains a major challenge, with an increased spectrum of fungal pathogens and a diversity of clinical and radiological presentations within the expanding spectrum of immunocompromised hosts...
March 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28352160/prospective-study-on-the-overuse-of-blood-test-guided-antibiotics-on-patients-with-acute-diarrhea-in-primary-hospitals-of-china
#20
Xinghui Liu, Xueke Tong, Liyin Jin, Minghao Ha, Feng Cao, Fengxia Xu, Yongbin Chi, Denghai Zhang, Limin Xu
BACKGROUND: Overuse with antibiotics in the treatment of infectious diseases has become a central focus of public health over the years. The aim of this study was to provide an up-to-date evaluation of the blood test-guided antibiotic use on patients with acute diarrhea in primary hospitals of China. MATERIALS AND METHODS: A cross-sectional survey was conducted on 330 patients with acute diarrhea in Shanghai, People's Republic of China, from March 2013 to February 2016...
2017: Patient Preference and Adherence
keyword
keyword
103642
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"