Korean Journal of Radiology

  • 제15권4호
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  • Pages.448-455
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  • 2014
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  • 1229-6929(pISSN)
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  • 2005-8330(eISSN)
대한영상의학회 (The Korean Society of Radiology)
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DOI QR코드

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Serial Micro-CT Assessment of the Therapeutic Effects of Rosiglitazone in a Bleomycin-Induced Lung Fibrosis Mouse Model

  • Choi, Eun Jung (Department of Radiology, Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Institute for Medical Sciences) ;
  • Jin, Gong Yong (Department of Radiology, Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Institute for Medical Sciences) ;
  • Bok, Se Mi (Department of Radiology, Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Institute for Medical Sciences) ;
  • Han, Young Min (Department of Radiology, Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Institute for Medical Sciences) ;
  • Lee, Young Sun (Department of Radiology, Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Institute for Medical Sciences) ;
  • Jung, Myung Ja (Department of Pathology, Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Institute for Medical Sciences) ;
  • Kwon, Keun Sang (Department of Preventive Medicine, Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Institute for Medical Sciences)
  • 투고 : 2013.07.14
  • 심사 : 2014.03.24
  • 발행 : 2014.07.01
⟨ 이전 논문 다음 논문 ⟩

초록

Objective: The aim of this study was to assess the therapeutic effects of rosiglitazone with serial micro-CT findings before and after rosiglitazone administration in a lung fibrosis mouse model induced with bleomycin. Materials and Methods: We instilled the bleomycin solution directly into the trachea in twenty mice (female, C57BL/6 mice). After the instillation with bleomycin, mice were closely observed for 3 weeks and then all mice were scanned using micro-CT without sacrifice. At 3 weeks, the mice were treated with rosiglitazone on days 21 to 27 if they had abnormal CT findings (n = 9, 45%). For the mice treated with rosiglitazone, we performed micro-CT with mouse sacrifice 2 weeks after the rosiglitazone treatment completion. We assessed the abnormal CT findings (ground glass attenuation, consolidation, bronchiectasis, reticular opacity, and honeycombing) using a five-point scale at 3 and 6 weeks using Wilcoxon-signed ranked test. The micro-CT findings were correlated with the histopathologic results. Results: One out of nine (11.1%) mice improved completely. In terms of consolidation, all mice (100%) showed marked decrease from $3.1{\pm}1.4$ at 3 weeks to $0.9{\pm}0.9$ at 6 weeks (p = 0.006). At 6 weeks, mild bronchiectasis (n = 6, 66.7%), mild reticular opacity (n = 7, 77.8%) and mild honeycomb patterns (n = 3, 33.3%) appeared. Conclusion: A serial micro-CT enables the evaluation of drug effects in a lung fibrosis mouse model.

키워드

과제정보

연구 과제 주관 기관 : Chonbuk National University

참고문헌

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