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Zhao Y, Zhang L, Jin T, Xu Y, Shi L, Chen J. Analysis of Pathogenic Bacteria of Mooren’s Ulcer and T Lymphocyte Activation. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.2865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To analyze the distribution and types of pathogenic bacteria of Mooren’s ulcer and the activation mechanism of T lymphocytes to provide reference for the treatment of Mooren’s ulcer, 156 patients (162 eyes) who were in the hospital were rolled into the observation group.
During the same period, 134 healthy people were rolled into the control group. The distribution of infectious pathogens in the observation group was identified. Then, flow cytometry was adopted to separate and detect the peripheral blood lymphocytes of patients, and RT-PCR was used to detect
levels of the transcription factor T-bet, GATA-3, and Stat5 in peripheral blood mononuclear cells (PBMCs). It was found that fungal pathogens accounted for 43.59%; the bacterial infection rate was 40.38%. In the observation group, the CD4, CD8, and C25 were expressed more (P < 0.01),
and the CD45 and CD45R were expressed less than the control group (P < 0.05); the proportion of Th1 cells was obviously higher (P < 0.01); the expression of T-bet and GATA-3 was obviously higher (P < 0.05), the percentage of HLA-DR in CD4+ and HLA-DR, CD-25, and
CD69 in CD8+ positive cells was obviously higher (P < 0.05). In conclusion, fungal infection rate of Mooren’s ulcer is relatively high, peripheral blood T cells and their subgroups are abnormally activated, and T cell activation is related to the pathogenesis of Mooren’s
ulcer.
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Affiliation(s)
- Yafang Zhao
- Department of Ophthalmology, 980 Hospital of PLA Joint Logistics Support Force, Shijiazhuang City, 050000, Hebei Province, China
| | - Lizhi Zhang
- Department of Ophthalmology, 980 Hospital of PLA Joint Logistics Support Force, Shijiazhuang City, 050000, Hebei Province, China
| | - Tao Jin
- Department of Ophthalmology, 980 Hospital of PLA Joint Logistics Support Force, Shijiazhuang City, 050000, Hebei Province, China
| | - Yincong Xu
- Department of Ophthalmology, 980 Hospital of PLA Joint Logistics Support Force, Shijiazhuang City, 050000, Hebei Province, China
| | - Lin Shi
- Department of Ophthalmology, 980 Hospital of PLA Joint Logistics Support Force, Shijiazhuang City, 050000, Hebei Province, China
| | - Jing Chen
- Department of Ophthalmology, 980 Hospital of PLA Joint Logistics Support Force, Shijiazhuang City, 050000, Hebei Province, China
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Song JE, Kim S, Kang HK, Chung I, Kwak YG, Um TH, Cho CR, Chang J. A case of bacterial keratitis caused by multi-drug-resistant Shewanella algae without marine exposure. Oxf Med Case Reports 2021; 2021:omab131. [PMID: 34987857 PMCID: PMC8713584 DOI: 10.1093/omcr/omab131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/09/2021] [Accepted: 12/06/2021] [Indexed: 11/13/2022] Open
Abstract
Shewanella are Gram-negative rods and marine pathogens. Here, we report a case of bacterial keratitis caused by Shewanella algae without marine exposure. A 66-year-old man with suspected pneumonia was sent to the emergency department from a nursing hospital. He had been in there for 2 years in a vegetative state and could not close his eyes voluntarily. Neither the patient nor his family had experienced any marine exposure. Keratitis was suspected in his right eye. Gram-negative rods grew from swab culture and identified as S. algae by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rRNA sequencing. The patient was treated with topical tobramycin, moxifloxacin and ofloxacin as well as steroids for 14 days, and the keratitis improved. S. algae is a rare human pathogen, and most human infections involve marine exposure. This is the second report of bacterial keratitis caused by S. algae worldwide and the first in Asia.
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Affiliation(s)
- Je Eun Song
- Inje University Ilsan Paik Hospital, Infectious Diseases, Internal Medicine, Goyang 10380, Republic of Korea
| | - Sollip Kim
- Inje University Ilsan Paik Hospital, Department of Laboratory Medicine, Goyang 10380, Republic of Korea
| | - Hyung Koo Kang
- Inje University Ilsan Paik Hospital, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Goyang 10380, Republic of Korea
| | - Inkwon Chung
- Inje University Ilsan Paik Hospital, Department of Ophthalmology, Goyang 10380, Republic of Korea
| | - Yee Gyung Kwak
- Inje University Ilsan Paik Hospital, Infectious Diseases, Internal Medicine, Goyang 10380, Republic of Korea
| | - Tae Hyun Um
- Inje University Ilsan Paik Hospital, Department of Laboratory Medicine, Goyang 10380, Republic of Korea
| | - Chong Rae Cho
- Inje University Ilsan Paik Hospital, Department of Laboratory Medicine, Goyang 10380, Republic of Korea
| | - Jeonghyun Chang
- Inje University Ilsan Paik Hospital, Department of Laboratory Medicine, Goyang 10380, Republic of Korea
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