1
|
Rieber H, Frontzek A, Jerosch J, Alefeld M, Strohecker T, Ulatowski M, Morawietz T, Hinsenkamp S, Bell A, Kücükköylü D, Frommelt L. Periprosthetic joint infection caused by anaerobes. Retrospective analysis reveals no need for prolonged cultivation time if sensitive supplemented growth media are used. Anaerobe 2018; 50:12-18. [PMID: 29374525 DOI: 10.1016/j.anaerobe.2018.01.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 01/08/2018] [Accepted: 01/22/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND In microbiological diagnosis of periprosthetic joint infection (PJI) culture media and incubation time are controversially discussed, especially if anaerobic bacteria are the causative agent. This study was conducted to demonstrate the influence of sensitive supplemented growth media on the duration of culturing anaerobes. METHODS Twenty-five consecutive cases were included in this retrospective study. For definition of PJI, the criteria of the Musculoskeletal Infection Society (MSIS) were considered. Histopathological analysis was interpreted according to the classification by Krenn et al. The quantity and time to positivity of detected anaerobes were monitored. Furthermore, antimicrobial activity within the tissue and sonicate fluid was phenotypically tested. RESULTS In all cases, even if the patients had received antibiotics before recovery, culture of anaerobes (Propionibacterium species, Finegoldia magna, Parvimonas micra and Robinsoniella peoriensis), both from tissue samples and prosthetic components, first became detectable in supplemented liver thioglycollate broth within six days (median: four days). CONCLUSION Recommendations for prolonged cultivation for up to 14 days mostly aim at detection of anaerobes. Here we present a laboratory procedure that can shorten cultivation time considerably.
Collapse
Affiliation(s)
- Heime Rieber
- MVZ Dr. Stein and Colleagues, Division of Microbiology, Mönchengladbach, Germany.
| | - Andre Frontzek
- MVZ Dr. Stein and Colleagues, Division of Microbiology, Mönchengladbach, Germany
| | - Jörg Jerosch
- Johanna-Etienne-Krankenhaus, Division of Orthopedics, Neuss, Germany
| | - Michael Alefeld
- Krankenhaus Düren, Klinik für Unfall- und Orthopädische Chirurgie, Düren, Germany
| | - Thomas Strohecker
- Marienkrankenhaus, Abteilung für Orthopädie und Unfallchirurgie, Schwerte, Germany
| | - Martin Ulatowski
- Sana Krankenhaus, Abteilung für Orthopädie und Unfallchirurgie, Radevormwald, Germany
| | - Thomas Morawietz
- Agaplesion Bethesda Krankenhaus, Klinik für Unfallchirurgie und Orthopädische Chirurgie, Wuppertal, Germany
| | - Stefan Hinsenkamp
- Hospital zum Heiligen Geist, Abteilung für Unfall-und Orthopädische Chirurgie, Kempen, Germany
| | - Andreas Bell
- Marienkrankenhaus, Division of Orthopedics, Aachen, Germany
| | - Dervis Kücükköylü
- Johanna-Etienne-Krankenhaus, Division of Orthopedics, Neuss, Germany
| | - Lars Frommelt
- HELIOS ENDO-Klinik Hamburg, Institute for Infectious Diseases, Clinical Microbiology and Infection Control, Hamburg, Germany
| |
Collapse
|
2
|
Kim YA, Kim D, Yong D, Lee K. Nationwide Survey of Blood Culture Protocol in Clinical Microbiology Laboratories in Korea. Ann Clin Microbiol 2016. [DOI: 10.5145/acm.2016.19.4.97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Young Ah Kim
- Department of Laboratory Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Dokyun Kim
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Kyungwon Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
3
|
Wangroongsarb P, Kohda T, Jittaprasartsin C, Suthivarakom K, Kamthalang T, Umeda K, Sawanpanyalert P, Kozaki S, Ikuta K. Molecular characterization of Clostridium botulinum isolates from foodborne outbreaks in Thailand, 2010. PLoS One 2014; 9:e77792. [PMID: 24475015 PMCID: PMC3903786 DOI: 10.1371/journal.pone.0077792] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 09/04/2013] [Indexed: 12/18/2022] Open
Abstract
Background Thailand has had several foodborne outbreaks of botulism, one of the biggest being in 2006 when laboratory investigations identified the etiologic agent as Clostridium botulinum type A. Identification of the etiologic agent from outbreak samples is laborious using conventional microbiological methods and the neurotoxin mouse bioassay. Advances in molecular techniques have added enormous information regarding the etiology of outbreaks and characterization of isolates. We applied these methods in three outbreaks of botulism in Thailand in 2010. Methodology/Principal Findings A total of 19 cases were involved (seven each in Lampang and Saraburi and five in Maehongson provinces). The first outbreak in Lampang province in April 2010 was associated with C. botulinum type F, which was detected by conventional methods. Outbreaks in Saraburi and Maehongson provinces occurred in May and December were due to C. botulinum type A1(B) and B that were identified by conventional methods and molecular techniques, respectively. The result of phylogenetic sequence analysis showed that C. botulinum type A1(B) strain Saraburi 2010 was close to strain Iwate 2007. Molecular analysis of the third outbreak in Maehongson province showed C. botulinum type B8, which was different from B1–B7 subtype. The nontoxic component genes of strain Maehongson 2010 revealed that ha33, ha17 and botR genes were close to strain Okra (B1) while ha70 and ntnh genes were close to strain 111 (B2). Conclusion/Significance This study demonstrates the utility of molecular genotyping of C. botulinum and how it contributes to our understanding the epidemiology and variation of boNT gene. Thus, the recent botulism outbreaks in Thailand were induced by various C. botulinum types.
Collapse
Affiliation(s)
- Piyada Wangroongsarb
- Department of Medical Sciences, National Institute of Health, Nonthaburi, Thailand
| | - Tomoko Kohda
- Department of Veterinary Science, Osaka Prefecture University, Osaka, Japan
| | | | - Karun Suthivarakom
- Department of Medical Sciences, National Institute of Health, Nonthaburi, Thailand
| | - Thanitchi Kamthalang
- Department of Medical Sciences, National Institute of Health, Nonthaburi, Thailand
| | - Kaoru Umeda
- Department of Microbiology, Osaka City Institute of Public Health and Environmental Sciences, Osaka, Japan
| | | | - Shunji Kozaki
- Department of Veterinary Science, Osaka Prefecture University, Osaka, Japan
| | - Kazuyoshi Ikuta
- Department of Virology, Osaka University, Osaka, Japan
- * E-mail:
| |
Collapse
|
4
|
Lü L, Zeng HQ, Wang PL, Shen W, Xiang TX, Mei ZC. Oral immunization with recombinant Mycobacterium smegmatis expressing the outer membrane protein 26-kilodalton antigen confers prophylactic protection against Helicobacter pylori infection. Clin Vaccine Immunol 2011; 18:1957-61. [PMID: 21900527 DOI: 10.1128/CVI.05306-11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Helicobacter pylori infection is prevalent worldwide and results in chronic gastritis, which may lead to gastric mucosa-associated lymphoid tissue lymphoma and gastric cancer. We have previously reported that oral immunization with recombinant Mycobacterium smegmatis expressing the H. pylori outer membrane protein 26-kilodalton (Omp26) antigen affords therapeutic protection against H. pylori infection in mice. In the present study, we investigated the prophylactic effects of this vaccine candidate on H. pylori challenge in mice. We found that oral immunization with recombinant Mycobacterium Omp26 significantly reduced H. pylori colonization in the stomach compared to inoculation with wild-type M. smegmatis in control mice. Six of the recombinant Mycobacterium-immunized mice (60%) were completely protected from H. pylori infection. The severity of H. pylori-associated chronic gastritis assessed histologically was significantly milder in mice vaccinated with recombinant Mycobacterium than in control animals. Mice immunized with recombinant Mycobacterium showed enhanced antigen-specific lymphocyte proliferation and antibody responses. Moreover, immunization with recombinant Mycobacterium resulted in an increased expression of interleukin-2 and gamma interferon in the stomach and spleen, as determined by reverse transcription-PCR analysis. Our results collectively suggest that vaccination with recombinant Mycobacterium Omp26 confers prophylactic protection against H. pylori infection. The inhibition of H. pylori colonization is associated with the induction of antigen-specific humoral and cell-mediated immune responses.
Collapse
|
5
|
Arikan S, Sancak B, Hascelik G. In vitro activity of caspofungin compared to amphotericin B, fluconazole, and itraconazole against Candida strains isolated in a Turkish University Hospital. Med Mycol 2005; 43:171-8. [PMID: 15832560 DOI: 10.1080/13693780410001731565] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
We investigated the in vitro activity of caspofungin compared to amphotericin B, fluconazole, and itraconazole against clinical strains of Candida spp. (n =239). Antifungal susceptibility tests were done in accordance with NCCLS M27-A2 microdilution method and the results were read after 24 and 48 h. In general, 24 h MIC readings were similar to those at 48 h for most isolates and all antifungal agents. Caspofungin was active against all species tested. Caspofungin MICs of Candida parapsilosis were slightly higher than those for other Candida spp. Caspofungin MIC (microg/ml) ranges at 24 h for C. albicans, C. glabrata, C tropicalis, C. parapsilosis, C kefyr, C krusei, C. lusitaniae, C. norvegensis, C. guilliermondii and C. lipolytica were 0.06-2, 0.125-2, 0.125-2, 1-4, 0.125-2, 1-2, 0.5-2, 0.5-1, 0.5-2 and 1-2, respectively. Eagle (paradoxical) effect was observed in 31 and 8% of the isolates at highest concentrations of caspofungin and itraconazole, respectively. The activity of caspofungin against fluconazole- and/or itraconazole-resistant isolates was similar to that detected for the susceptible ones. We conclude that caspofungin appears as a promising antifungal agent with enhanced activity against Candida, including the azole-resistant strains.
Collapse
Affiliation(s)
- Sevtap Arikan
- Hacettepe University Faculty of Medicine, Department of Microbiology and Clinical Microbiology, Ankara, Turkey.
| | | | | |
Collapse
|
6
|
Abstract
Susceptibility testing of anaerobes has been described for approximately 45 years, some 15 years fewer than descriptions for aerobic organisms. During that time period, >16 methods, >16 media, and a host of other variables have been described in the United States literature, culminating in the most recent standards published by the National Committee for Clinical Laboratory Standards (NCCLS) in 2001. These new guidelines include a single agar dilution reference method as well as an alternative minimal inhibitory concentration method validated by extensive multilaboratory collaborative trials. In addition, the Food and Drug Administration-approved E-test has proved valuable as a user-friendly alternative to NCCLS methods. Highlights of the "evolution" of various methods, their variations and their failures, factors that affected the development of the current standards, and the rationale for susceptibility testing of anaerobes are discussed herein.
Collapse
Affiliation(s)
- David W Hecht
- Infectious Diseases Division, Loyola University Medical Center, and Hines VA Hospital, Maywood, IL, USA.
| |
Collapse
|
7
|
Roe DE, Finegold SM, Citron DM, Goldstein EJC, Wexler HM, Rosenblatt JE, Cox ME, Jenkins SG, Hecht DW. Multilaboratory comparison of anaerobe susceptibility results using 3 different agar media. Clin Infect Dis 2002; 35:S40-6. [PMID: 12173107 DOI: 10.1086/341919] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
A 5-laboratory study was performed that used the National Committee for Clinical Laboratory Standards (NCCLS) reference agar dilution method with 3 media formulations to determine whether the use of different media would affect minimum inhibitory concentration (MIC) results. Wilkins-Chalgren, Brucella-based blood agar (BRU), and Wilkins-Chalgren agar plus blood (WCB) and 6 antibiotics (clindamycin, cefoxitin, ceftizoxime, piperacillin, metronidazole, and trovafloxacin) were evaluated with 58 isolates. The MIC values were compared, and a significant correlation of >0.80 was demonstrated for all media and each antibiotic/organism group. The cumulative rate of errors for all antibiotics was 0.1%. These data indicate that a change in the NCCLS reference medium for testing of anaerobic bacteria susceptibility to either BRU or WCB will not affect the MIC results for the antibiotics and organisms evaluated.
Collapse
Affiliation(s)
- D E Roe
- Anaerobe Systems, Morgan Hill, CA, USA
| | | | | | | | | | | | | | | | | |
Collapse
|