keyword
MENU ▼
Read by QxMD icon Read
search

gram negative rod pneumonia

keyword
https://www.readbyqxmd.com/read/29111432/direct-determination-of-carbapenem-resistant-enterobacteriaceae-and-pseudomonas-aeruginosa-from-positive-blood-cultures-using-laser-scattering-technology
#1
Evgeny A Idelevich, Matthias Hoy, Dennis Knaack, Dennis Görlich, Georg Peters, Matthias Borowski, Karsten Becker
OBJECTIVE: Delays in appropriate antimicrobial treatment contribute to increased mortality of septic patients. We aimed to develop a methodology for detection of carbapenem resistance in Gram-negative bacteria directly from positive blood cultures (BCs). METHODS: Initially, meropenem-resistant Enterobacteriaceae (n=13) and Pseudomonas aeruginosa (n=32) isolates as well as the same numbers of meropenem-susceptible isolates were used to establish the detection of carbapenem resistance from agar cultures...
October 27, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29073317/the-diagnostic-yield-of-noninvasive-microbiologic-sputum-sampling-in-a-cohort-of-patients-with-clinically-diagnosed-hospital-acquired-pneumonia
#2
Elliot L Naidus, Mary T Lasalvia, Edward R Marcantonio, Shoshana J Herzig
The clinical predictors of positive sputum culture have not been previously reported in hospital-acquired pneumonia (HAP), and data on yield of sputum culture in this setting are scant. Current Infectious Disease Society of America guidelines for HAP recommend noninvasive sputum sampling, though the data for this practice are limited. We assessed the yield of sputum culture in HAP cases at an academic medical center from January 2007 to July 2013. HAP cases were identifi ed by International Classifi cation of Diseases, Ninth Revision-Clinical Modifi cation codes for bacterial pneumonia and all cases were validated by chart review...
October 18, 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28894613/pneumonia-due-to-a-rare-pathogen-achromobacter-xylosoxidans-subspecies-denitrificans
#3
Hesham Awadh, Munthir Mansour, Obadah Aqtash, Yousef Shweihat
Achromobacter xylosoxidans, subspecies denitrificans, is a gram-negative rod recently implicated as an emerging cause of infection in both immunosuppressed and immunocompetent populations. Few cases are reported in literature involving multiple body systems. Diagnosis depends on cultures of appropriate specimens, and management usually is by administration of appropriate antibiotics (usually agents with antipseudomonal activity). We report a rare case of pneumonia due to infection with this organism, in a patient with preexisting bronchiectasis secondary to chronic aspiration...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28852636/isolation-and-identification-of-nonoral-pathogenic-bacteria-in-the-oral-cavity-of-patients-with-removable-dentures
#4
Reza Derafshi, Abdollah Bazargani, Jannan Ghapanchi, Yazdan Izadi, Hooman Khorshidi
AIMS AND OBJECTIVES: Dentures in the oral cavity may act as a reservoir of microorganisms, which may be related to systemic infections. The aim of this study was to investigate the nonoral pathogenic bacteria in the oral cavity of patients with removable dentures in Shiraz, Southern Iran. MATERIALS AND METHODS: The bacterial flora of saliva samples from 50 men and 50 women with removable dentures and 100 age- and sex-matched controls with normal dentate were compared using culture, Gram staining, and API20E Kit methods...
July 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28797299/prevalence-of-antimicrobial-drug-resistant-bacteria-carried-by-in-and-outpatients-attending-a-secondary-care-hospital-in-zambia
#5
Marjolijn M B Nagelkerke, Kapembwa Sikwewa, Dennis Makowa, Irene de Vries, Simon Chisi, J Wendelien Dorigo-Zetsma
OBJECTIVE: Antimicrobial resistance is an increasing global health problem. Very little data on resistance patterns of pathogenic bacteria in low-income countries exist. The aim of this study was to measure the prevalence of antimicrobial drug resistant bacteria carried by in- and outpatients in the resource constraint setting of a secondary care hospital in Zambia. Nasal and rectal samples from 50 in- and 50 outpatients were collected. Patients were randomly selected and informed consent was obtained...
August 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28670449/no-nosocomial-transmission-under-standard-hygiene-precautions-in-short-term-contact-patients-in-case-of-an-unexpected-esbl-or-q-a-e-coli-positive-patient-a-one-year-prospective-cohort-study-within-three-regional-hospitals
#6
Dennis Souverein, Sjoerd M Euser, Bjorn L Herpers, Corry Hattink, Patricia Houtman, Amerens Popma, Jan Kluytmans, John W A Rossen, Jeroen W Den Boer
BACKGROUND: Many Highly Resistant Gram Negative Rod (HR-GNR) positive patients are found unexpectedly in clinical cultures, besides patients who are screened and isolated based on risk factors. As unexpected HR-GNR positive patients are isolated after detection, transmission to contact patients possibly occurred. The added value of routine contact tracing in such situations within hospitals with standard hygiene precautions is unknown. METHODS: In 2014, this study was performed as a prospective cohort study...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28664714/analysis-of-acinetobacter-baumannii-resistance-patterns-in-patients-with-chronic-obstructive-pulmonary-disease-copd-in-terms-of-choice-of-effective-empiric-antibiotic-therapy
#7
Aneta Grochowalska, Maria Kozioł-Montewka, Anna Sobieszczańska
<b>Introduction.</b> Multi-resistant Acinetobacter baumannii isolated from patients has become one of the most hazardous pathogens in health care settings. The aim of the study was to analyze pneumonia caused by Acinetobacter baumannii in patients hospitalized because of exacerbation of chronic obstructive pulmonary diseases (COPD), who were admitted to the Pulmonology Ward of the Masovian Specialistic Hospital in Radom (MSS). The incidence and drug sensitivity of these non-fermenting rods were evaluated, and compliance with antimicrobial procedure with the algorithm of the guidelines in applicable recommendations, was estimated...
June 12, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28620254/isolation-morphological-identification-and-in-vitro-antibacterial-activity-of-endophytic-bacteria-isolated-from-azadirachta-indica-neem-leaves
#8
Ankit Kumar Singh, Rajesh Kumar Sharma, Varsha Sharma, Tanmay Singh, Rajesh Kumar, Dimple Kumari
AIM: The objective of this study was to isolate endophytic bacteria from Azadirachta indica (neem) leaves, their identification and investigate their antibacterial activity against three Gram-positive bacteria, Staphylococcus aureus, Streptococcus pyogenes and Bacillus cereus and Gram-negative bacteria Escherichia coli, Salmonella Typhimurium and Klebsiella pneumoniae. MATERIALS AND METHODS: Fresh leaves of A. indica (neem) was procured from the Department of Botany, JNKVV, Jabalpur...
May 2017: Veterinary World
https://www.readbyqxmd.com/read/28585158/properties-of-probiotics-kocuria-sm1-and-rhodococcus-sm2-isolated-from-fish-guts
#9
S M Sharifuzzaman, Hafizur Rahman, Dawn A Austin, B Austin
This study characterized probiotics Kocuria SM1 and Rhodococcus SM2, which were recovered from the intestinal microbiota of rainbow trout (Oncorhynchus mykiss, Walbaum). The cultures were Gram-positive, non-motile, catalase-positive and oxidase-negative cocci or rods. Cell multiplication of SM1 and SM2 was observed at 4-37 °C (45 °C for SM1), in 0-20% (w/v) NaCl and at pH 2-11. The viability was not affected when exposed to pepsin at pH 2.0 and 3.0, and pancreatin at pH 8.0. Neither isolates were chrome azurol S-positive for siderophore production...
June 5, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28529026/the-use-of-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-for-rapid-bacterial-identification-in-patients-with-smear-positive-bacterial-meningitis
#10
B Bishop, Y Geffen, A Plaut, O Kassis, R Bitterman, M Paul, A Neuberger
OBJECTIVES: To assess the potential of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) in rapid identification of bacteria from smear-positive cerebrospinal fluid (CSF) in a cohort of patients with meningitis. METHODS: Single-centre observational study, including adults and children with community-acquired or postneurosurgical bacterial meningitis. Meningitis was defined using established criteria. Samples of CSF that had a positive CSF Gram stain were directly examined by MALDI-TOF-MS...
May 19, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28509971/description-of-chryseobacterium-timonianum-sp-nov-isolated-from-a-patient-with-pneumonia
#11
Rita Abou Abdallah, Teresa Cimmino, Sophie Baron, Frédéric Cadoret, Caroline Michelle, Didier Raoult, Pierre-Edouard Fournier, Fadi Bittar
Using a polyphasic taxonomic strategy, an aerobic, Gram-negative, non-motile, yellow pigmented rod isolated from a sputum sample of a patient with pneumonia was characterised. This bacterial strain, designated G972(T), could not be identified by our systematic MALDI-TOF screening on a MicroFlex. This led to the sequencing of the 16S rRNA gene, which shows 98.57% sequence identity with that of Chryseobacterium indologenes 16777(T), the phylogenetic closely related type strain of a species with standing in nomenclature, which putatively classifies it as a new species...
May 16, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28450472/paneth-cell-disruption-induced-necrotizing-enterocolitis-in-mice-requires-live-bacteria-and-occurs-independently-of-tlr4-signaling
#12
Jessica R White, Huiyu Gong, Brock Pope, Patrick Schlievert, Steven J McElroy
Necrotizing enterocolitis (NEC) remains a leading cause of morbidity and mortality in premature infants. Both human surgical specimens and animal models suggest a potential involvement of Paneth cells in NEC pathogenesis. Paneth cells play critical roles in epithelial homeostasis, innate immunity and host-microbial interactions. Yet, the complex interplay between Paneth cell disruption, epithelial barrier dysfunction and microbial-driven inflammation remains unclear in the immature intestine. In this study, mucosal intestinal injury consistent with human NEC was induced in postnatal day 14-16 (P14-P16) mice by disrupting Paneth cells, followed by gavage with Klebsiella pneumonia...
June 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28446177/the-susceptibility-to-fosfomycin-of-gram-negative-bacteria-isolates-from-urinary-tract-infection-in-the-czech-republic-data-from-a-unicentric-study
#13
Miroslav Fajfr, Miroslav Louda, Pavla Paterová, Lenka Ryšková, Jaroslav Pacovský, Josef Košina, Helena Žemličková, Miloš Broďák
BACKGROUND: Against a background of rapid increase of β-lactamase-producing or multi-resistant pathogenic bacteria and the resulting lack of effective antibiotic treatment, some older antibiotics have been tested for new therapeutic uses. One of these is fosfomycin, to which according to studies these resistant bacteria are very sensitive. Our study was designed because there is no data on the fosfomycin susceptibility rate in the Czech Republic. METHOD: In this study from January 2013 to June 2014 3295 unique isolates of Gram-negative bacteria which had caused urinary tract infections were examined...
April 26, 2017: BMC Urology
https://www.readbyqxmd.com/read/28441365/efficacy-and-safety-of-3-nasal-packing-materials-used-after-functional-endoscopic-sinus-surgery-for-chronic-rhinosinusitis-a-comparative-study-in-china
#14
Xi-Ling Zheng, Yu-Xiang Zhao, Min Xu
BACKGROUND This study aimed to investigate the efficacy and safety of 3 nasal packing products (silicone tube, Beschitin-F, and Aquacel1-Ag) after functional endoscopic sinus surgery (FESS) for chronic rhinosinusitis (CRS) patients in China. MATERIAL AND METHODS Sixty-six CRS patients undergoing FESS surgery were randomly divided into 3 groups (22 patients in each group): the silicone tube group, the Beschitin-F group, and the Aquacel1-Ag group. Postoperative headache, nasal pain, nasal bleeding, and swelling of the nasal mucosa were observed at 1 month after FESS surgery...
April 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28396549/in-vivo-pharmacokinetics-and-pharmacodynamics-of-zti-01-fosfomycin-for-injection-in-the-neutropenic-murine-thigh-infection-model-against-escherichia-coli-klebsiella-pneumoniae-and-pseudomonas-aeruginosa
#15
Alexander J Lepak, Miao Zhao, Brian VanScoy, Daniel S Taylor, Evelyn Ellis-Grosse, Paul G Ambrose, David R Andes
Fosfomycin is a broad-spectrum agent with activity against Gram-positive and Gram-negative bacteria, including drug-resistant strains, such as extended-spectrum-beta-lactamase (ESBL)-producing and carbapenem-resistant (CR) Gram-negative rods. In the present study, the pharmacokinetic/pharmacodynamic (PK/PD) activity of ZTI-01 (fosfomycin for injection) was evaluated in the neutropenic murine thigh infection model against 5 Escherichia coli, 3 Klebsiella pneumoniae, and 2 Pseudomonas aeruginosa strains, including a subset with ESBL and CR phenotypes...
June 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28390963/targeting-biofilms-of-multidrug-resistant-bacteria-with-silver-oxynitrate
#16
Lindsay R Kalan, Deanna M Pepin, Imran Ul-Haq, Steve B Miller, Michelle E Hay, Roderick J Precht
A topical antimicrobial, silver oxynitrate (Ag7NO11), has recently become available that exploits the antimicrobial activity of ionic silver but has enhanced activity because highly oxidised silver atoms are stabilised with oxygen in a unique chemical formulation. The objective of this study was to use a multifaceted approach to characterise the spectrum of antimicrobial and antibiofilm activity of a wound dressing coated with Ag7NO11 at a concentration of 0.4 mg Ag/cm(2). Physiochemical properties that influence efficacy were also evaluated, and Ag7NO11 was found to release a high level of Ag ions, including Ag(2+) and Ag(3+), without influencing the pH of the medium...
June 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28348805/a-cardiac-implantable-device-infection-by-raoultella-planticola-in-an-immunocompromized-patient
#17
Chandra Adjodah, Chistophe D'Ivernois, David Leyssene, Jean-Baptiste Berneau, Yann Hemery
Introduction. Infection of cardiac implantable electronic devices is a severe condition associated with high mortality, particularly in patients who are dependent upon heart-pacing devices. Staphylococci are found in 70 % of reported cases. Case presentation. We report the case of a cardiac-pacemaker infection in a 79-year-old man, cumulating a history of rheumatoid arthritis treated by corticosteroids and methotrexate by a recently identified micro-organism: Raoultella planticola. He presented local signs of infection on his VVI pacemaker implantation site and underwent urgent pocket device replacement under cefamandole antibioprophylaxis...
February 2017: JMM Case Reports
https://www.readbyqxmd.com/read/28273858/use-of-a-pan-genomic-dna-microarray-in-determination-of-the-phylogenetic-relatedness-among-cronobacter-spp-and-its-use-as-a-data-mining-tool-to-understand-cronobacter-biology
#18
REVIEW
Ben D Tall, Jayanthi Gangiredla, Christopher J Grim, Isha R Patel, Scott A Jackson, Mark K Mammel, Mahendra H Kothary, Venugopal Sathyamoorthy, Laurenda Carter, Séamus Fanning, Carol Iversen, Franco Pagotto, Roger Stephan, Angelika Lehner, Jeffery Farber, Qiong Q Yan, Gopal R Gopinath
Cronobacter (previously known as Enterobacter sakazakii) is a genus of Gram-negative, facultatively anaerobic, oxidase-negative, catalase-positive, rod-shaped bacteria of the family Enterobacteriaceae. These organisms cause a variety of illnesses such as meningitis, necrotizing enterocolitis, and septicemia in neonates and infants, and urinary tract, wound, abscesses or surgical site infections, septicemia, and pneumonia in adults. The total gene content of 379 strains of Cronobacter spp. and taxonomically-related isolates was determined using a recently reported DNA microarray...
March 4, 2017: Microarrays
https://www.readbyqxmd.com/read/28063019/raoultella-spp-clinical-significance-infections-and-susceptibility-to-antibiotics
#19
REVIEW
Alicja Sękowska
The genus Raoultella belongs to the family of Enterobacteriaceae. Raoultella spp. are Gram-negative, aerobic, non-motile rods. This genus can be distinguished from the genus Klebsiella, in that genus use histamine as the only source of carbon in the medium. Also, Raoultella grow at 4 °C and do not produce gas from lactose at 44.5 °C. Raoultella sp. is known to inhabit natural environments (water, soil, plants). The reservoir of Raoultella is the gastrointestinal tract and upper respiratory tract. Raoultella spp...
May 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/27913093/genome-of-the-carbapenemase-producing-clinical-isolate-elizabethkingia-miricola-em_chuv-and-comparative-genomics-with-elizabethkingia-meningoseptica-and-elizabethkingia-anophelis-evidence-for-intrinsic-multidrug-resistance-trait-of-emerging-pathogens
#20
COMPARATIVE STUDY
Onya Opota, Seydina M Diene, Claire Bertelli, Guy Prod'hom, Philippe Eckert, Gilbert Greub
Elizabethkingia miricola is a Gram-negative non-fermenting rod emerging as a life-threatening human pathogen. The multidrug-resistant (MDR) carbapenemase-producing clinical isolate E. miricola EM_CHUV was recovered in the setting of severe nosocomial pneumonia. In this study, the genome of E. miricola EM_CHUV was sequenced and a functional analysis was performed, including a comparative genomic study with Elizabethkingia meningoseptica and Elizabethkingia anophelis. The resistome of EM_CHUV revealed the presence of a high number of resistance genes, including the presence of the blaGOB-13 and blaB-9 carbapenemase-encoding genes...
January 2017: International Journal of Antimicrobial Agents
keyword
keyword
49088
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"