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Zheng M, Kang Y, Shen Y, Xu Y, Xu F, Chen Y. Genomic Features and Comparative Genomic Analysis of Streptococcus sp. v1. nov., Isolated from an Endophthalmitis Patient. Curr Microbiol 2023; 80:378. [PMID: 37861738 DOI: 10.1007/s00284-023-03460-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 08/28/2023] [Indexed: 10/21/2023]
Abstract
Endophthalmitis is an acute inflammatory intraocular condition that can cause permanent vision loss. The treatment strategy and visual outcome partly depend on the identification of the agents of pathogens. In this study, metagenomic sequencing was conducted to investigate the microbial and antibiotic resistance genes (ARGs) composition in the vitreous (intraocular body fluid) of an endophthalmitis patient, who progressed rapidly and accompanied by severe pain. Metagenomic sequencing data revealed that the vitreous sample was predominated by Streptococcus, with a low-diversity microbiome in the vitreous. This strain harbor's the ARGs mainly against beta-lactam, macrolide-lincosamide-streptogramin, and multidrug. Additionally, metagenome-assembled genome sequence of Streptococcus sp. v1. nov. was identified. The Tetra Correlation Search (TCS) analysis uncovered that the closest relative of the Streptococcus sp. v1. nov. was Streptococcus mitis SK321. Pan/core genome analysis for Streptococcus sp. v1. nov. and TCS top 25 hits strains revealed that most unique genes of Streptococcus sp. v1. nov. were linked to ATP-binding cassette transport system, which could indicate unique virulence and pathogenic potentials of Streptococcus sp. v1. nov. In addition, a total of 7 virulence factors were identified, and the overwhelming of them were classified into "offensive virulence factors". The high pathogenicity of Streptococcus sp. v1. nov. could be a reason for the patient's rapid disease progression. Our study was first isolated an ocular pathogen with highly virulent based on metagenomic sequencing and bioinformatics analysis, which has important reference value for revealing the composition and genome characteristics of pathogens in endophthalmitis patient in the future.
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Affiliation(s)
- Meiqin Zheng
- Department of Immunology and Pathogenic Biology, College of Basic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi, People's Republic of China
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
- National Clinical Research Center for Ocular Diseases, Wenzhou, Zhejiang, China
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yutong Kang
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yangyang Shen
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
- National Clinical Research Center for Ocular Diseases, Wenzhou, Zhejiang, China
| | - Yi Xu
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
- National Clinical Research Center for Ocular Diseases, Wenzhou, Zhejiang, China
| | - Fangyi Xu
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yanjiong Chen
- Department of Immunology and Pathogenic Biology, College of Basic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi, People's Republic of China.
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Tello A, Amado LJ, Galvis V, Martínez LC. Phakic iris-claw intraocular lens: calculations of power and long-term endothelial cells loss. Int Ophthalmol 2023; 43:357-358. [PMID: 35916990 DOI: 10.1007/s10792-022-02446-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 07/20/2022] [Indexed: 10/16/2022]
Abstract
A correction about phakic intraocular lens power calculation process, as it was stated by Li, Song & Song, is provided. It is explained that this calculation is based on the Van der Heijde formula and not on biometric formulas. A comment about the mechanisms of late endothelial cell loss following phakic intraocular lenses is done.
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Affiliation(s)
- Alejandro Tello
- Centro Oftalmologico Virgilio Galvis, Centro Medico Carlos Ardila Lulle, , Floor 3, Module 7, Urbanización El Bosque, Floridablanca, Santander, Colombia. .,Ophthalmology Department, Fundación Oftalmológica de Santander FOSCAL, Floridablanca, Colombia. .,Ophthalmology Department, Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia.
| | - Lusvin J Amado
- Biomedical Engineering Department, Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
| | - Virgilio Galvis
- Centro Oftalmologico Virgilio Galvis, Centro Medico Carlos Ardila Lulle, , Floor 3, Module 7, Urbanización El Bosque, Floridablanca, Santander, Colombia.,Ophthalmology Department, Fundación Oftalmológica de Santander FOSCAL, Floridablanca, Colombia.,Ophthalmology Department, Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
| | - Luz C Martínez
- Ophthalmology Department, Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
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