Introduction: Colletotrichum species are well-known plant pathogens, which have been increasingly reported as the cause of keratitis or subcutaneous lesions in humans. In this study we reported a rare case of fungal keratitis from Iran and reviewed the literature.
Case Presentation: A 69-year-old man whose right eye was injured by herbal material was examined by slit-lamp biomicroscopy and mycology investigation of corneal scrapings was done. The grown filamentous fungal was identified as Colletotrichum gloeosporioides based on morphological characteristics and DNA sequence of the internal transcribed spacer region. The isolated strain was sensitive to amphotericin B, caspofungin, anidolafungin, micafungin, voriconazole, and relatively resistant to fluconazole, and itraconazole. Patient was successfully treated with voriconazole.
Conclusions: This report highlights that the early and accurate identification and therapy can helpful to management keratitis caused by C. gloeosporioides.
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http://dx.doi.org/10.3855/jidc.14492 | DOI Listing |
Braz J Microbiol
January 2025
Federal University of Ceará Fortaleza, Ceará, Brazil.
Fusarium keratitis (FK) is an important clinical condition that can lead to blindness and eye loss, and is most commonly caused by the Fusarium solani species complex (FSSC). This study evaluated the susceptibility of planktonic cells and biofilms of FSSC (n = 7) and non-FSSC (n = 7) isolates obtained from patients with keratitis from a semi-arid tropical region to amphotericin B (AMB), natamycin (NAT), voriconazole (VRZ), efinaconazole (EFZ), and luliconazole (LCZ). Analysis of clinical data showed that trauma was the most common risk factor for FK patients.
View Article and Find Full Text PDFBMC Infect Dis
January 2025
Liaoning Provincial Key Laboratory of Cornea and Ocular Surface Diseases, Liaoning Provincial Optometry Technology Engineering Research Center, The Third People's Hospital of Dalian, Dalian Municipal Eye Hospital, Dalian Municipal Cancer Hospital, No. 40, Qianshan Road, Ganjingzi District, Dalian, Liaoning, China.
Background: Conjunctival sporotrichosis is a rare fungal infection, typically presenting as granulomatous lesions. Its manifestations can be atypical, particularly in immunosuppressed patients. Here, we present a rare case of a Mooren's ulcer patient with bulbar conjunctival Sporotrichosis presenting as a salmon-pink tumor.
View Article and Find Full Text PDFCornea
January 2025
Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Purpose: To describe a case series of patients with 12 fungal keratitis treated with caspofungin 0.5% eye drops.
Methods: In this study, 12 patients diagnosed with fungal keratitis were treated with topical compounded caspofungin 0.
Invest Ophthalmol Vis Sci
January 2025
State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.
Purpose: Fungal keratitis (FK) remains a treatment challenge, necessitating new therapeutic targets. Piezo1, a mechanosensitive ion channel, regulates calcium signaling and immune cell function. This study investigates its role in macrophage-mediated antifungal responses in FK.
View Article and Find Full Text PDFAdv Mater
January 2025
Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Key Laboratory of Eye Diseases, School of Ophthalmology, Shandong First Medical University, Qingdao, 266071, P. R. China.
Multidrug-resistant (MDR) bacteria and their associated biofilms are major causative factors in eye infections, often resulting in blindness and presenting considerable global health challenges. Presently, mechano-bactericidal systems, which combine distinct topological geometries with mechanical forces to physically induce bacterial apoptosis, show promising potential. However, the physical interaction process between current mechano-bactericidal systems and bacteria is generally based on passive diffusion or Brownian motion and lacks the force required for biofilm penetration; thus, featuring low antibacterial efficacy.
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