1
|
Fernández-Vecilla D, Blasco-Palacio PB, Pérez-Ramos IS, Unzaga-Barañano MJ. Corynebacterium propinquum, a rare cause of late endophtalmitis. ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA (ENGLISH ED.) 2023; 41:518-519. [PMID: 37024377 DOI: 10.1016/j.eimce.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 04/08/2023]
Affiliation(s)
- Domingo Fernández-Vecilla
- Servicio de Microbiología Clínica y Parasitología, Hospital Universitario de Basurto, Bilbao, Spain; Biocruces Bizkaia Health Research Institute, Baracaldo, Spain.
| | - Paula Belén Blasco-Palacio
- Biocruces Bizkaia Health Research Institute, Baracaldo, Spain; Servicio de Oftalmología, Hospital Universitario de Basurto, Bilbao, Spain
| | - Iris Sharon Pérez-Ramos
- Servicio de Microbiología Clínica y Parasitología, Hospital Universitario de Basurto, Bilbao, Spain; Biocruces Bizkaia Health Research Institute, Baracaldo, Spain
| | - Miren Josebe Unzaga-Barañano
- Servicio de Microbiología Clínica y Parasitología, Hospital Universitario de Basurto, Bilbao, Spain; Biocruces Bizkaia Health Research Institute, Baracaldo, Spain
| |
Collapse
|
2
|
Fernández-Vecilla D, Blasco-Palacio PB, Pérez-Ramos IS, Unzaga-Barañano MJ. Corynebacterium propinquum, una causa rara de endoftalmitis tardía. Enferm Infecc Microbiol Clin 2022. [DOI: 10.1016/j.eimc.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
3
|
Omi M, Matsuo Y, Araki-Sasaki K, Oba S, Yamada H, Hirota K, Takahashi K. 16S rRNA nanopore sequencing for the diagnosis of ocular infection: a feasibility study. BMJ Open Ophthalmol 2022; 7:bmjophth-2021-000910. [PMID: 36161861 PMCID: PMC9131114 DOI: 10.1136/bmjophth-2021-000910] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 04/29/2022] [Indexed: 11/16/2022] Open
Abstract
Objective We conducted a feasibility study to verify the effectiveness of 16S ribosomal RNA (rRNA) gene analysis using the nanopore sequencer MinION for identifying causative bacteria in several types of ocular infections. Methods and Analysis Four cases of corneal ulcers, one case of endophthalmitis and one case of a conjunctival abscess were included in this study. DNA was extracted from corneal scraping, vitreous samples and secretions from the conjunctival abscess. We conducted 16S rRNA gene amplicon sequencing using MinION and metagenomic DNA analysis. The efficacy of bacterial identification was verified by comparing the conventional culture method with smear observations. Results 16S rRNA gene sequencing analysis with MinION identified the causative organisms promptly with high accuracy in approximately 4 hours, from ophthalmic specimens. The results of the conventional culture method and 16S rRNA gene sequencing were consistent in all cases. In four of the six cases, a greater variety of organisms was found in the 16S rRNA gene analysis than in bacterial culture. Conclusion Using our workflow, 16S rRNA gene analysis using MinION enabled rapid and accurate identification possible in various kinds of bacterial ocular infections.
Collapse
Affiliation(s)
- Masatoshi Omi
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Yoshiyuki Matsuo
- Department of Human Stress Response Science, Kansai Medical University, Hirakata, Japan
| | | | - Shimpei Oba
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Haruhiko Yamada
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| | - Kiichi Hirota
- Department of Human Stress Response Science, Kansai Medical University, Hirakata, Japan
| | - Kanji Takahashi
- Department of Ophthalmology, Kansai Medical University, Hirakata, Japan
| |
Collapse
|
4
|
Corynebacterium Species of the Conjunctiva and Nose: Dominant Species and Species-Related Differences of Antibiotic Susceptibility Profiles. Cornea 2021; 39:1401-1406. [PMID: 32773445 DOI: 10.1097/ico.0000000000002445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Nondiphtherial Corynebacterium species are normal residents of human skin and mucosa, including the conjunctiva and nose, but can cause conjunctivitis and keratitis. Recently, resistance against various classes of antibiotics has been reported in Corynebacterium. The present study investigated the type of species and antibiotic susceptibilities of the conjunctival and nasal Corynebacterium species. METHODS This study examined 183 strains of Corynebacterium species that were isolated from patients undergoing preoperative examinations for cataract surgery. Species were identified by RNA polymerase β-subunit-encoding gene (rpoB) sequencing. Antibiotic susceptibility tests were performed by the microdilution method according to the Clinical and Laboratory Standards Institute standard method M45. RESULTS Corynebacterium macginleyi was the most predominant species (84%; 46 of 55) in the conjunctiva. The 2 major species in the nasal cavity were Corynebacterium accolens and Corynebacterium propinquum (44% and 31%, respectively), followed by Corynebacterium pseudodiphtheriticum (8%), Corynebacterium jeikeium (7%), and C. macginleyi (3%). In contrast to other nasal Corynebacterium species, only C. macginleyi showed a high susceptibility to macrolides. However, among nonconjunctival Corynebacterium species, C. propinquum, was unique in having a high resistance rate to levofloxacin (29%), comparable with that observed in C. macginleyi (36%). Penicillin G and tobramycin showed good susceptibility in almost all strains. CONCLUSIONS Drug resistance against fluoroquinolones and macrolides was observed in Corynebacterium species, with the antibiotic susceptibility profiles correlating with differences of the species and niche. Nasal and conjunctival Corynebacterium profiles of drug resistance suggest habitat segregation strictly at the species level.
Collapse
|
5
|
Aoki T, Kitazawa K, Deguchi H, Sotozono C. Current Evidence for Corynebacterium on the Ocular Surface. Microorganisms 2021; 9:microorganisms9020254. [PMID: 33513871 PMCID: PMC7912348 DOI: 10.3390/microorganisms9020254] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/18/2021] [Accepted: 01/22/2021] [Indexed: 11/16/2022] Open
Abstract
Corynebacterium species are commonly found in the conjunctiva of healthy adults and are recognized as non-pathogenic bacteria. In recent years, however, Corynebacterium species have been reported to be potentially pathogenic in various tissues. We investigated Corynebacterium species on the ocular surface and reviewed various species of Corynebacterium in terms of their antimicrobial susceptibility and the underlying molecular resistance mechanisms. We identified a risk for Corynebacterium-related ocular infections in patients with poor immunity, such as patients with diabetes or long-term users of topical steroids, and in those with corneal epithelial damage due to trauma, contact lens wear, lagophthalmos, and trichiasis. The predominant strain in the conjunctiva was C. macginleyi, and the species associated with keratitis and conjunctivitis were C. macginleyi, C. propinquum, C. mastitidis, C. pseudodiphtheriticum, C. accolens, C. striatum, C. xerosis, and C. bovis. Overall, Corynebacterium species present on the ocular surface were resistant to quinolones, whereas those in the nasal cavity were more susceptible. The prevalence of fluoroquinolone-resistant Corynebacterium has not changed in the past 10 years; however, Corynebacterium species remain susceptible to third-generation cephems. In conclusion, the use of third-generation cephems should be a reasonable and pragmatic approach for treatment of ocular infections caused by Corynebacterium species.
Collapse
|
6
|
Abstract
Background:In microbial keratitis, infection of the cornea can threaten vision through permanent corneal scarring and even perforation resulting in the loss of the eye. A literature review was conducted by Karsten, Watson and Foster (2012) to determine the spectrum of microbial keratitis. Since this publication, there have been over 2600 articles published investigating the causative pathogens of microbial keratitis.Objective:To determine the current spectrum of possible pathogens implicated in microbial keratitis relative to the 2012 study.Methods:An exhaustive literature review was conducted of all the peer-reviewed articles reporting on microbial pathogens implicated in keratitis. Databases including MEDLINE, EMBASE, Scopus and Web of Science were searched utilising their entire year limits (1950-2019).Results:Six-hundred and eighty-eight species representing 271 genera from 145 families were implicated in microbial keratitis. Fungal pathogens, though less frequent than bacteria, demonstrated the greatest diversity with 393 species from 169 genera that were found to cause microbial keratitis. There were 254 species of bacteria from 82 genera, 27 species of amoeba from 11 genera, and 14 species of virus from 9 genera, which were also identified as pathogens of microbial keratitis.Conclusion:The spectrum of pathogens implicated in microbial keratitis is extremely diverse. Bacteria were most commonly encountered and in comparison, to the review published in 2012, further 456 pathogens have been identified as causative pathogens of microbial keratitis. Therefore, the current review provides an important update on the potential spectrum of microbes, to assist clinicians in the diagnosis and treatment of microbial keratitis.
Collapse
|
7
|
Bussan KA, Robertson DM. Contact lens wear and the diabetic corneal epithelium: A happy or disastrous marriage? J Diabetes Complications 2019; 33:75-83. [PMID: 30391097 PMCID: PMC7364814 DOI: 10.1016/j.jdiacomp.2018.09.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/10/2018] [Accepted: 09/23/2018] [Indexed: 12/11/2022]
Abstract
Diabetes mellitus is an epidemic in the US and abroad. With the advent of new contact lens technology, the use of contact lenses as glucose sensors in lieu of the traditional finger stick is quickly becoming realized. This has the potential to rapidly expand the contact lens market into this growing patient population. The independent cellular and physiological effects of contact lens wear and diabetes on the corneal epithelium have been described. However, little evidence exists to date to support whether there is increased risk associated with contact lens wear in diabetes. The focus of this review is to discuss what is known about the cellular effects of contact lenses on the corneal epithelium, the pathophysiological changes in the corneal epithelium that occur in diabetes, and whether an increased risk for corneal epithelial damage and/or infection may negatively impact safety in diabetic contact lens wearers. Available data indicates that there are inherent risks associated with contact lens wear in diabetics. Importantly, eye care practitioners fitting contact lenses in the diabetic patient need to carefully consider the duration of disease, the level of glycemic control, the presence of retinopathy, and the patient's overall health.
Collapse
Affiliation(s)
- Katherine A Bussan
- The Department of Ophthalmology, The University of Texas Southwestern Medical Center, United States of America
| | - Danielle M Robertson
- The Department of Ophthalmology, The University of Texas Southwestern Medical Center, United States of America.
| |
Collapse
|
8
|
Deguchi H, Kitazawa K, Kayukawa K, Kondoh E, Fukumoto A, Yamasaki T, Kinoshita S, Sotozono C. The trend of resistance to antibiotics for ocular infection of Staphylococcus aureus, coagulase-negative staphylococci, and Corynebacterium compared with 10-years previous: A retrospective observational study. PLoS One 2018; 13:e0203705. [PMID: 30192856 PMCID: PMC6128643 DOI: 10.1371/journal.pone.0203705] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/25/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To retrospectively identify epidemiological trends of infection on the ocular surface and investigate trends of resistance to bacterial antibiotics compared with 10-years previous for Staphylococcus aureus, coagulase-negative staphylococci (CNS), and Corynebacterium in Japan. MATERIALS AND METHODS Bacterial isolate samples were collected from the conjunctival sacs of eyes afflicted with conjunctivitis, keratitis, dacryocystitis, and hordeolum from September 2004 through November 2005 (n = 145 isolates) and September 2014 through November 2015 (n = 195 isolates) at the Baptist Eye Institute, Kyoto, Japan. The prevalence of methicillin-resistant S. aureus (MRSA), methicillin-resistant CNS (MR-CNS), and fluoroquinolone-resistant Corynebacterium were examined, and susceptibility of isolated bacteria to levofloxacin (LVFX), cefmenoxime (CMX), chloramphenicol (CP), erythromycin (EM), vancomycin (VCM), and arbekacin (ABK) were compared between both time periods using the disc susceptibility method. RESULTS Over the 10-year period from initial to final examination, the prevalence of MRSA and MR-CNS significantly decreased from 52% to 22% (P < 0.05) and from 47% to 25% (P < 0.05), respectively, yet there was no change in the prevalence of fluoroquinolone-resistant Corynebacterium (60% and 54%; P = 0.38). Antibiotic-resistance trend analysis revealed that susceptibility to antibiotics in 2014-2015 was similar to that in 2004-2005. MRSA and MR-CNS were susceptible to CP (88%), VCM (100%), and ABK (100%), while fluoroquinolone-resistant Corynebacterium was susceptible to CMX (100%), VCM (100%), and ABK (96%). CONCLUSION The prevalence of MRSA and MR-CNS significantly decreased between the two time periods, yet more than 50% of the Corynebacterium isolates were still resistant to LVFX. Although no increase in bacterial resistance to antibiotics was found, a cautionary use of fluoroquinolone eye drops should be considered.
Collapse
Affiliation(s)
| | - Koji Kitazawa
- Baptist Eye Institute, Kyoto, Japan
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
- * E-mail:
| | | | - Eri Kondoh
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akiko Fukumoto
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | | | - Shigeru Kinoshita
- Department of Frontier Medical Science and Technology for Ophthalmology, Kyoto, Prefectural University of Medicine, Kyoto, Japan
| | - Chie Sotozono
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| |
Collapse
|
9
|
Bregman J, Jeng BH. Microbial Keratitis Secondary to Therapeutic Contact Lens Wear. CURRENT OPHTHALMOLOGY REPORTS 2018. [DOI: 10.1007/s40135-018-0177-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
10
|
Mohammed I, Said DG, Dua HS. Human antimicrobial peptides in ocular surface defense. Prog Retin Eye Res 2017; 61:1-22. [DOI: 10.1016/j.preteyeres.2017.03.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 03/22/2017] [Accepted: 03/27/2017] [Indexed: 01/17/2023]
|
11
|
Rea B, Hawkins J, Min H, Maniglia R, Talati N, Glaser L. Corynebacterium propinquum endocarditis: a confounding presentation of a rare entity. Cardiovasc Pathol 2017; 28:71-73. [DOI: 10.1016/j.carpath.2017.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 03/20/2017] [Indexed: 10/19/2022] Open
|
12
|
|