Skip to main content
Title Pub Year Author Sort descending SearchLink
First description of CTX-M beta-lactamase-producing clinical Escherichia coli isolates from Egypt 2006 Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International journal of antimicrobial agents
Periodical, Abbrev.
Int.J.Antimicrob.Agents
Pub Date Free Form
Jun
Volume
27
Issue
6
Start Page
545
Other Pages
548
Notes
JID: 9111860; 0 (Escherichia coli Proteins); EC 3.5.2.- (CTX-M-27, E coli); EC 3.5.2.- (beta-lactamase CTX-M-14); EC 3.5.2.- (beta-lactamase CTX-M-15); EC 3.5.2.6 (beta-Lactamases); 2005/11/02 [received]; 2006/01/08 [accepted]; 2006/05/18 [aheadofprint];
Place of Publication
Netherlands
ISSN/ISBN
0924-8579; 0924-8579
Accession Number
PMID: 16713187
Language
eng
SubFile
Journal Article; IM
DOI
S0924-8579(06)00092-6 [pii]
Output Language
Unknown(0)
PMID
16713187
Abstract
We studied the presence of beta-lactamases with an extended spectrum of activity in clinical Escherichia coli isolates from Cairo, Egypt. Forty-six E. coli isolates were collected from patients with urinary tract infections at a university hospital in 2001. Phenotypic characterisation identified a very high extended-spectrum beta-lactamase (ESBL) rate of 60.9%. Pulsed-field gel electrophoresis and plasmid profiles revealed eight different clonal groups. All ESBL producers were polymerase chain reaction-positive for blaTEM and blaCTX-M genes. Within the CTX-M family, three different enzymes, CTX-M-14, CTX-M-15 and CTX-M-27, were found. The ESBL producers carried multiple plasmids and further plasmid-encoded resistances. In several strains, genes for up to six aminoglycoside-modifying enzymes were detected. A linkage to fluoroquinolone resistance was not observed. This study confirms the high rate of ESBLs in Egypt and further demonstrates the worldwide spread of genes coding for CTX-M enzymes in clinical isolates.
Descriptors
Drug Resistance, Bacterial, Escherichia coli/drug effects/enzymology, Escherichia coli Proteins/genetics, Humans, Plasmids, Polymerase Chain Reaction, beta-Lactamases/genetics
Links
Book Title
Database
Publisher
Data Source
Authors
Mohamed Al-Agamy,M. H., El-Din Ashour,M. S., Wiegand,I.
Original/Translated Title
URL
Date of Electronic
20060518
PMCID
Editors
Role for cell density in antifungal drug resistance in Candida albicans biofilms 2007 Department of Microbiology and Immunology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Antimicrobial Agents and Chemotherapy
Periodical, Abbrev.
Antimicrob.Agents Chemother.
Pub Date Free Form
Jul
Volume
51
Issue
7
Start Page
2454
Other Pages
2463
Notes
LR: 20140907; GR: 1R01 DE14029/DE/NIDCR NIH HHS/United States; JID: 0315061; 0 (Antifungal Agents); 0 (Fungal Proteins); 7XU7A7DROE (Amphotericin B); 8VZV102JFY (Fluconazole); OID: NLM: PMC1913227; 2007/05/14 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
0066-4804; 0066-4804
Accession Number
PMID: 17502416
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; IM
DOI
AAC.01237-06 [pii]
Output Language
Unknown(0)
PMID
17502416
Abstract
Biofilms of Candida albicans are less susceptible to many antifungal drugs than are planktonic yeast cells. We investigated the contribution of cell density to biofilm phenotypic resistance. Planktonic yeast cells in RPMI 1640 were susceptible to azole-class drugs, amphotericin B, and caspofungin at 1 x 10(3) cells/ml (standard conditions) using the XTT [2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide sodium salt] assay. As reported by others, as the cell concentration increased to 1 x 10(8) cells/ml, resistance was observed with 10- to 20-fold-greater MICs. Biofilms that formed in microtiter plate wells, like high-density planktonic organisms, were resistant to drugs. When biofilms were resuspended before testing, phenotypic resistance remained, but organisms, when diluted to 1 x 10(3) cells/ml, were susceptible. Drug-containing medium recovered from high-cell-density tests inhibited low-cell-density organisms. A fluconazole-resistant strain showed greater resistance at high planktonic cell density, in biofilm, and in resuspended biofilm than did low-density planktonic or biofilm organisms. A strain lacking drug efflux pumps CDR1, CDR2, and MDR1, while susceptible at a low azole concentration, was resistant at high cell density and in biofilm. A strain lacking CHK1 that fails to respond to the quorum-sensing molecule farnesol had the same response as did the wild type. FK506, reported to abrogate tolerance to azole drugs at low cell density, had no effect on tolerance at high cell density and in biofilm. These observations suggested that cell density has a role in the phenotypic resistance of biofilm, that neither the drug efflux pumps tested nor quorum sensing through Chk1p contributes to resistance, and that azole drug tolerance at high cell density differs mechanistically from tolerance at low cell density.
Descriptors
Amphotericin B/pharmacology, Antifungal Agents/pharmacology, Biofilms/drug effects/growth & development, Candida albicans/drug effects/physiology, Drug Resistance, Fungal/genetics, Fluconazole/pharmacology, Fungal Proteins/physiology, Microbial Sensitivity Tests
Links
Book Title
Database
Publisher
Data Source
Authors
Perumal,P., Mekala,S., Chaffin,W. L.
Original/Translated Title
URL
Date of Electronic
20070514
PMCID
PMC1913227
Editors
Prevalence of severe esophagitis in Spain. Results of the PRESS study (Prevalence and Risk factors for Esophagitis in Spain: A cross-sectional study) 2016 Department of Microbiology and Parasitology, Pharmacy Faculty, Universitat de Barcelona, Spain.; Department of Gastroenterology, Hospital Universitario La Fe, Valencia, Spain.; Department of Gastroenterology, Hospital Universitario La Fe, Valencia, Spain.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
United European gastroenterology journal
Periodical, Abbrev.
United.European Gastroenterol.J.
Pub Date Free Form
Apr
Volume
4
Issue
2
Start Page
229
Other Pages
235
Notes
LR: 20160420; JID: 101606807; OID: NLM: PMC4804364; OTO: NOTNLM; 2015/04/16 [received]; 2015/06/21 [accepted]; 2015/07/24 [epublish]; ppublish
Place of Publication
England
ISSN/ISBN
2050-6406; 2050-6406
Accession Number
PMID: 27087951
Language
eng
SubFile
Journal Article
DOI
10.1177/2050640615595916 [doi]
Output Language
Unknown(0)
PMID
27087951
Abstract
BACKGROUND: *N.P. and M.P. contributed equally to this study.The current prevalence of esophagitis in southern Europe is unknown. In addition, the risk factors for reflux esophagitis are not fully understood. OBJECTIVE: The objective of this article is to assess the prevalence and risk factors for esophagitis in Spain. METHODS: A prospective, observational, cross-sectional, multicenter study (PRESS study) was conducted among 31 gastrointestinal endoscopy units throughout Spain. A total of 1361 patients undergoing upper gastrointestinal endoscopy were enrolled. Sociodemographic, clinical and treatment data were recorded. RESULTS: A total of 95% of patients were Caucasian and 52% were male (mean age: 53 +/- 17 years). The most frequent symptoms prompting endoscopy were heartburn (40%), regurgitation (26%) and dysphagia (15%). Fifty-four percent of patients undergoing endoscopy were receiving proton pump inhibitor (PPI) treatment. Esophagitis (mainly mild-moderate) was present in 154 (12.4%) patients. The severe form was recorded in only 11 (0.8%) patients. Multivariate analysis results indicated that the likelihood of esophagitis was higher in men (OR = 1.91, 95% CI = 1.31-2.78), in patients with high GERD-Q scores (OR = 1.256, 95% CI = 1.176-1.343), weight increase (OR = 1.014, 95% CI = 1.003-1.025) and high alcohol consumption (OR = 2.49, 95% CI = 1.16-5.36). CONCLUSION: Severe esophagitis is a rare finding in the Spanish population. Male gender, high GERD-Q score, weight increase and high alcohol consumption are main risk factors for its appearance.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Pique,N., Ponce,M., Garrigues,V., Rodrigo,L., Calvo,F., de Argila,C.M., Borda,F., Naranjo,A., Alcedo,J., Jose Soria,M., Rey,E., Bujanda,L., Gisbert,J.P., Suarez,D., Calvet,X., Ponce,J., PRESS Study Group
Original/Translated Title
URL
Date of Electronic
20150724
PMCID
PMC4804364
Editors
Standardized method for in vitro antifungal susceptibility testing of Candida albicans biofilms 2001 Department of Microbiology, Division of Infectious Diseases, The University of Texas Health Science Center at San Antonio, Texas 78245, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Antimicrobial Agents and Chemotherapy
Periodical, Abbrev.
Antimicrob.Agents Chemother.
Pub Date Free Form
Sep
Volume
45
Issue
9
Start Page
2475
Other Pages
2479
Notes
LR: 20140613; JID: 0315061; 0 (Antifungal Agents); 7XU7A7DROE (Amphotericin B); 8VZV102JFY (Fluconazole); OID: NLM: PMC90680; ppublish
Place of Publication
United States
ISSN/ISBN
0066-4804; 0066-4804
Accession Number
PMID: 11502517
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
Output Language
Unknown(0)
PMID
11502517
Abstract
Candida albicans is implicated in many biomaterial-related infections. Typically, these infections are associated with biofilm formation. Cells in biofilms display phenotypic traits that are dramatically different from those of their free-floating planktonic counterparts and are notoriously resistant to antimicrobial agents. Consequently, biofilm-related infections are inherently difficult to treat and to fully eradicate with normal treatment regimens. Here, we report a rapid and highly reproducible microtiter-based colorimetric assay for the susceptibility testing of fungal biofilms, based on the measurement of metabolic activities of the sessile cells by using a formazan salt reduction assay. The assay was used for in vitro antifungal susceptibility testing of several C. albicans strains grown as biofilms against amphotericin B and fluconazole and the increased resistance of C. albicans biofilms against these antifungal agents was demonstrated. Because of its simplicity, compatibility with a widely available 96-well microplate platform, high throughput, and automation potential, we believe this assay represents a promising tool for the standardization of in vitro antifungal susceptibility testing of fungal biofilms.
Descriptors
Amphotericin B/pharmacology, Antifungal Agents/pharmacology, Biofilms/drug effects, Candida albicans/drug effects, Cell Count, Colorimetry, Fluconazole/pharmacology, Humans, Microbial Sensitivity Tests/standards, Reproducibility of Results
Links
Book Title
Database
Publisher
Data Source
Authors
Ramage,G., Vande Walle,K., Wickes,B. L., Lopez-Ribot,J. L.
Original/Translated Title
URL
Date of Electronic
PMCID
PMC90680
Editors
Importance of biofilm in Candida parapsilosis and evaluation of its susceptibility to antifungal agents by colorimetric method 2007 Department of Microbiology, Faculty of Medicine, Masaryk University, 601 77 Brno, Czechia. filip.ruzicka@fnusa.cz
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Folia microbiologica
Periodical, Abbrev.
Folia Microbiol.(Praha)
Pub Date Free Form
Volume
52
Issue
3
Start Page
209
Other Pages
214
Notes
JID: 0376757; 0 (Antifungal Agents); ppublish
Place of Publication
Czech Republic
ISSN/ISBN
0015-5632; 0015-5632
Accession Number
PMID: 17702457
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
Output Language
Unknown(0)
PMID
17702457
Abstract
The ability of C. parapsilosis (an important cause of nosocomial infections) to produce biofilm was evaluated in 32 bloodstream isolates and 85 strains isolated from skin. The biofilm formation was found in 19 (59%) blood isolates and only in 33 (39%) isolates from skin. The antifungal susceptibility was assessed for amphotericin B, itraconazole and voriconazole in planktonic and biofilm form of the 19 biofilm-positive bloodstream strains by broth microdilution method according to NCCLS standards. The method was modified by the use of resazurin as a colorimetric indicator of the metabolically active cells which makes the determination of the effect of antifungal agents easier. Biofilm forms of all strains were more resistant than their planktonic form.
Descriptors
Antifungal Agents/pharmacology, Biofilms/drug effects, Candida/drug effects/pathogenicity, Colorimetry, Cross Infection/microbiology, Drug Resistance, Fungal/drug effects, Fungemia/drug therapy, Humans, Microbial Sensitivity Tests/methods, Microbiological Techniques
Links
Book Title
Database
Publisher
Data Source
Authors
Ruzicka,F., Hola,V., Votava,M., Tejkalova,R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
In vitro effect of amphotericin B on Candida albicans, Candida glabrata and Candida parapsilosis biofilm formation 2014 Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 9 Maria Sklodowska-Curie Street, 85-094, Bydgoszcz, Poland, malgorzata_szabelska@wp.pl.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Mycopathologia
Periodical, Abbrev.
Mycopathologia
Pub Date Free Form
Feb
Volume
177
Issue
2-Jan
Start Page
19
Other Pages
27
Notes
JID: 7505689; 0 (Antifungal Agents); 7XU7A7DROE (Amphotericin B); 2013/08/02 [received]; 2014/01/06 [accepted]; 2014/01/17 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1573-0832; 0301-486X
Accession Number
PMID: 24436013
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1007/s11046-014-9727-7 [doi]
Output Language
Unknown(0)
PMID
24436013
Abstract
Candida spp. biofilm is considered highly resistant to conventional antifungals. The aim of this study was to investigate the in vitro effect of amphotericin B on Candida spp. biofilms at different stages of maturation. We investigated the activity of amphotericin B against 78 clinical isolates of Candida spp., representing three species, growing as planktonic and sessile cells, by a widely accepted broth microdilution method. The in vitro effect on sessile cell viability was evaluated by MTT reduction assay. All examined strains were susceptible to amphotericin B when grown as free-living cells. At the early stages of biofilm maturation 96.7-100.0 % strains, depending on species, displayed amphotericin B sessile minimal inhibitory concentration (SMIC) = 1 mug/mL. Mature Candida spp. biofilm of 32.1-90.0 % strains displayed amphotericin B SMIC = 1 mug/mL. Based on these results, amphotericin B displays species- and strain-depending activity against Candida spp. biofilms.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Prazynska,M., Gospodarek,E.
Original/Translated Title
URL
Date of Electronic
20140117
PMCID
Editors
Prevalence of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae in food-producing animals 2012 Department of Microbiology, Shizuoka Institute of Environment and Hygiene, 4-27-2 Kitaando, Aoi, Shizuoka 420-8637, Japan. midori1_hiroi@pref.shizuoka.lg.jp
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Journal of veterinary medical science / the Japanese Society of Veterinary Science
Periodical, Abbrev.
J.Vet.Med.Sci.
Pub Date Free Form
Feb
Volume
74
Issue
2
Start Page
189
Other Pages
195
Notes
JID: 9105360; 0 (DNA, Bacterial); EC 3.5.2.- (beta-lactamase CTX-M-14); EC 3.5.2.6 (beta-Lactamases); 2011/10/07 [aheadofprint]; ppublish
Place of Publication
Japan
ISSN/ISBN
1347-7439; 0916-7250
Accession Number
PMID: 21979457
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
JST.JSTAGE/jvms/11-0372 [pii]
Output Language
Unknown(0)
PMID
21979457
Abstract
To evaluate the diversity of extended-spectrum beta-lactamases (ESBL) genes among food-producing animals, 48 isolates of ESBL-producing Escherichia coli isolates were obtained from rectal samples of broilers, layers, beef cattle and pigs, at the slaughterhouse level. ESBL-carrying E. coli were isolated from 60.0% of individual broiler rectal samples, 5.9% of layers, 12.5% of beef cattle and 3% of pigs. One ESBL-producing Klebsiella pneumoniae was isolated from a broiler. The ESBL-positive E. coli isolates from broilers harbored various ESBL genes: bla (SHV-12), bla(CTX-M-2), bla(CTX-M-14), bla(CTX-M-15) and bla(CTX-M-44). The plasmid DNAs were analyzed by restriction patterns. Homogeneous band patterns were yielded in those of K. pneumoniae and E. coli isolates harboring the bla(CTX-M-2) gene from different farms. No genetic relation between the 2 CTX-M-14 ESBL-producing strains was found by pulsed-field gel electrophoresis, although 2 plasmids in these strains, obtained from different broiler farms, were similar to each other. This study provides evidence that the proliferation of CTX-M-producing E. coli is due to the growth of indigenous CTX-M-producing strains and the possible emergence of strains that acquired CTX-M genes by horizontal transfer in different broiler farms. CTX-M-producing coliforms in broilers should be controlled due to the critical importance of cephalosporins and the zoonotic potential of ESBL-producing bacteria.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Hiroi,M., Yamazaki,F., Harada,T., Takahashi,N., Iida,N., Noda,Y., Yagi,M., Nishio,T., Kanda,T., Kawamori,F., Sugiyama,K., Masuda,T., Hara-Kudo,Y., Ohashi,N.
Original/Translated Title
URL
Date of Electronic
20111007
PMCID
Editors
Microbial, saccharifying and antioxidant properties of an Indian rice based fermented beverage 2015 Department of Microbiology, Vidyasagar University, Midnapore 721102, West Bengal, India.; Department of Microbiology, Vidyasagar University, Midnapore 721102, West Bengal, India.; Department of Microbiology, Vidyasagar University, Midnapore 721102, West B
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Food Chemistry
Periodical, Abbrev.
Food Chem.
Pub Date Free Form
1-Feb
Volume
168
Issue
Start Page
196
Other Pages
202
Notes
CI: Copyright (c) 2014; JID: 7702639; 0 (Antioxidants); OTO: NOTNLM; 2014/04/12 [received]; 2014/06/26 [revised]; 2014/07/07 [accepted]; 2014/07/16 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
0308-8146; 0308-8146
Accession Number
PMID: 25172700
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.foodchem.2014.07.042 [doi]
Output Language
Unknown(0)
PMID
25172700
Abstract
Haria, a popular rice based ethnic fermented beverage, is consumed as a staple food and refreshing drink by the vast number of Indian tribal people. In this study, the composition of microbial consortia and the occurrence of some important nutraceuticals during haria preparation were investigated. The quantities of moulds and yeasts were highest at 2nd day, and then declined, but, on the contrary, the quantity of Lactic Acid Bacteria and Bifidobacterium sp. increased concurrently during the course of fermentation. Accumulation of starch hydrolytic enzymes along with different types of malto-oligosaccharides like maltotetrose (26.18mug/gm), maltotriose (28.16mug/gm), and maltose (26.94mug/gm) were also noted. Furthermore, GC-MS analysis indicated the occurrence of pyranose derivatives in the fermented products. The fermented materials showed higher free radicals scavenging activity (82.54%, 4th day) against DPPH radicals. These studies clearly demonstrated that the microbial interaction during fermentation of rice makes it more nutritious, and most likely more beneficial for health.
Descriptors
Links
Book Title
Database
Publisher
Elsevier Ltd
Data Source
Authors
Ghosh,K., Ray,M., Adak,A., Dey,P., Halder,S.K., Das,A., Jana,A., Parua Mondal,S., Das Mohapatra,P.K., Pati,B.R., Mondal,K.C.
Original/Translated Title
URL
Date of Electronic
20140716
PMCID
Editors
Effect of plasmids harbouring blaCTX-M on the virulence and fitness of Escherichia coli ST131 isolates 2015 Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea.; Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University Scho
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International journal of antimicrobial agents
Periodical, Abbrev.
Int.J.Antimicrob.Agents
Pub Date Free Form
Aug
Volume
46
Issue
2
Start Page
214
Other Pages
218
Notes
CI: Copyright (c) 2015; JID: 9111860; EC 3.5.2.- (beta-lactamase CTX-M-14); EC 3.5.2.- (beta-lactamase CTX-M-15); EC 3.5.2.6 (beta-Lactamases); OTO: NOTNLM; 2014/11/27 [received]; 2015/04/23 [revised]; 2015/04/26 [accepted]; 2015/06/04 [aheadofprint]; ppu
Place of Publication
Netherlands
ISSN/ISBN
1872-7913; 0924-8579
Accession Number
PMID: 26116415
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.ijantimicag.2015.04.012 [doi]
Output Language
Unknown(0)
PMID
26116415
Abstract
The effect of plasmids harbouring blaCTX-M on the virulence and fitness on Escherichia coli sequence type 131 (ST131) isolates was investigated. Plasmids harbouring blaCTX-M-14 or blaCTX-M-15 were transferred by transconjugation into five non-extended-spectrum beta-lactamase (ESBL)-producing ST131 isolates. Clinical non-ESBL-producing ST131 isolates demonstrated a higher degree of biofilm formation and serum resistance compared with CTX-M-producing ST131 isolates. In addition, non-ESBL-producing isolates were more competitive than CTX-M-producing isolates. Transconjugants showed no significant defect in growth rate and competitiveness compared with their hosts. However, serum resistance and biofilm formation were diminished in the transconjugants. In conclusion, non-ESBL-producing E. coli ST131 isolates were more competitive and virulent than CTX-M-producing E. coli ST131 isolates. However, transconjugants harbouring blaCTX-M were no less competitive than their susceptible hosts, which may partially explain the global dissemination of CTX-M-14- and CTX-M-15-producing E. coli ST131 isolates, in addition to their increased antimicrobial resistance.
Descriptors
Links
Book Title
Database
Publisher
Elsevier B.V. and the International Society of Chemotherapy
Data Source
Authors
Shin,J., Ko,K.S.
Original/Translated Title
URL
Date of Electronic
20150604
PMCID
Editors
In vitro evaluation of antibiotic lock technique for the treatment of Candida albicans, C. glabrata, and C. tropicalis biofilms 2010 Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of Korean medical science
Periodical, Abbrev.
J.Korean Med.Sci.
Pub Date Free Form
Dec
Volume
25
Issue
12
Start Page
1722
Other Pages
1726
Notes
LR: 20150205; JID: 8703518; 0 (Antifungal Agents); 0 (Echinocandins); 0 (Pyrimidines); 0 (Triazoles); 304NUG5GF4 (Itraconazole); 7XU7A7DROE (Amphotericin B); 8VZV102JFY (Fluconazole); F0XDI6ZL63 (caspofungin); JFU09I87TR (Voriconazole); OID: NLM: PMC29952
Place of Publication
Korea (South)
ISSN/ISBN
1598-6357; 1011-8934
Accession Number
PMID: 21165285
Language
eng
SubFile
Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.3346/jkms.2010.25.12.1722 [doi]
Output Language
Unknown(0)
PMID
21165285
Abstract
Candidaemia associated with intravascular catheter-associated infections is of great concern due to the resulting high morbidity and mortality. The antibiotic lock technique (ALT) was previously introduced to treat catheter-associated bacterial infections without removal of catheter. So far, the efficacy of ALT against Candida infections has not been rigorously evaluated. We investigated in vitro activity of ALT against Candida biofilms formed by C. albicans, C. glabrata, and C. tropicalis using five antifungal agents (caspofungin, amphotericin B, itraconazole, fluconazole, and voriconazole). The effectiveness of antifungal treatment was assayed by monitoring viable cell counts after exposure to 1 mg/mL solutions of each antibiotic. Fluconazole, itraconazole, and voriconazole eliminated detectable viability in the biofilms of all Candida species within 7, 10, and 14 days, respectively, while caspofungin and amphotericin B did not completely kill fungi in C. albicans and C. glabrata biofilms within 14 days. For C. tropicalis biofilm, caspofungin lock achieved eradication more rapidly than amphotericin B and three azoles. Our study suggests that azoles may be useful ALT agents in the treatment of catheter-related candidemia.
Descriptors
Amphotericin B/administration & dosage/pharmacology, Antifungal Agents/administration & dosage/pharmacology/therapeutic use, Biofilms/drug effects, Candida albicans/drug effects/physiology, Candida glabrata/drug effects/physiology, Candida tropicalis/drug effects/physiology, Candidiasis/drug therapy, Catheter-Related Infections/drug therapy, Catheterization, Central Venous, Drug Administration Routes, Echinocandins/administration & dosage/pharmacology, Fluconazole/administration & dosage/pharmacology, Humans, Itraconazole/administration & dosage/pharmacology, Microbial Sensitivity Tests, Pyrimidines/administration & dosage/pharmacology, Triazoles/administration & dosage/pharmacology, Voriconazole, Antibiotic Lock Technique, Biofilms, Candida
Links
Book Title
Database
Publisher
Data Source
Authors
Ko,K. S., Lee,J. Y., Song,J. H., Peck,K. R.
Original/Translated Title
URL
Date of Electronic
20101124
PMCID
PMC2995224
Editors