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- 저자 : 손경목 (검색결과 47 건)
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지역 사회에서 발생한 ESBL 생성 E. coli에 의한 치골결합 골수염 1예
손경목,김연숙,천신혜,정현,구선회,황득수 대한감염학회 2011 Infection and Chemotherapy Vol.43 No.3
Osteomyelitis of the pubic symphysis or pubic osteomyelitis is a rare disease entity. Predisposing factors include trauma, pelvic or urologic surgery, intravenous drug abuse, pelvic malignancy, parturition and cardiac catheterization. Pathogens vary depending on the risk factors. The most frequent causative organism is Staphylococcus aureus . Gram-negative bacteria such as Pseudomonas aeruginosa and Escherichia coli are also common pathogens. However, pubic osteomyelitis due to community-onset extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli has not previously been described. We present a patient with pubic osteomyelitis caused by ESBL-producing Escherichia coli without known predisposing factors except for diabetes.
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손경목,Sung-Gwon Lee,김현지,Shin hyea Cheon,정형석,이주연,김인수,프라산타 실왈,김영재,Seungwha Paik,정재욱,Chungoo Park,김연숙,조은경 대한의학회 2020 Journal of Korean medical science Vol.35 No.38
Background: Observational studies of the ongoing coronavirus disease 2019 (COVID-19) outbreak suggest that a ‘cytokine storm’ is involved in the pathogenesis of severe illness. However, the molecular mechanisms underlying the altered pathological inflammation in COVID-19 are largely unknown. We report here that toll-like receptor (TLR) 4-mediated inflammatory signaling molecules are upregulated in peripheral blood mononuclear cells (PBMCs) from COVID-19 patients, compared with healthy controls (HC). Methods: A total of 48 subjects including 28 COVID-19 patients (8 severe/critical vs. 20 mild/ moderate cases) admitted to Chungnam National University Hospital, and age/sex-matched 20 HC were enrolled in this study. PBMCs from the subjects were processed for nCounter Human Immunology gene expression assay to analyze the immune related transcriptome profiles. Recombinant proteins of severe acute respiratory syndrome coronavirus-2 (SARS- CoV-2) were used to stimulate the PBMCs and monocyte-derived macrophages, and real-time polymerase chain reaction was performed to quantify the mRNA expressions of the pro- inflammatory cytokines/chemokines. Results: Among the most highly increased inflammatory mediators in severe/critically ill patients, S100A9, an alarmin and TLR4 ligand, was found as a noteworthy biomarker, because it inversely correlated with the serum albumin levels. We also observed that recombinant S2 and nucleocapsid proteins of SARS-CoV-2 significantly increased pro- inflammatory cytokines/chemokines and S100A9 in human primary PBMCs. Conclusion: These data support a link between TLR4 signaling and pathological inflammation during COVID-19 and contribute to develop therapeutic approaches through targeting TLR4-mediated inflammation.
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손경목,정두련,백진양,김소현,주은정,하영은,고관수,강철인,백경란,송재훈,김영호 대한의학회 2012 Journal of Korean medical science Vol.27 No.3
Panton-Valentine leukocidin (PVL)-positive USA300 clone has been the most successful community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) clone spreading in North America. In contrast, PVL-negative ST72-CA-MRSA has been predominant in Korea, and there has been no report of infections by the USA300 strain except only one case report of perianal infection. Here, we describe the first case of pneumonia caused by the USA300 strain following pandemic influenza A (H1N1) in Korea. A 50-year-old man was admitted with fever and cough and chest radiograph showed pneumonic consolidation at the right lower lung zone. He received a ventilator support because of respiratory failure. PCR for pandemic influenza A (H1N1) in nasopharyngeal swab was positive, and culture of sputum and endotracheal aspirate grew MRSA. Typing of the isolate revealed that it was PVL-positive, ST 8-MRSA-SCCmec type IV. The analysis of the PFGE patterns showed that this isolate was the same pulsotype as the USA300 strain.
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