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- 저자 : 임수정(Soo Jeong Im) (검색결과 2 건)
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임태균,이선희,손선호,임수정,정성목,조성환,김덕환,송근호,Im, Tae-Kyun,Lee, Sun-Hee,Son, Sun-Ho,Lim, Soo-Jung,Jeong, Seong-Mok,Cho, Sung-Whan,Kim, Duck-Hwan,Song, Kun-Ho 대한수의학회 2009 大韓獸醫學會誌 Vol.49 No.1
A 6-year-old, spayed female Miniature Pinscher dog with chronic vomiting lasted for 7 weeks was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Physical examination, complete blood counts, serum chemistry, gastroscopy, upper gastrointestinal series, endoscopic biopsy and histopathological examination were performed for the diagnosis. The complete blood counts and serum biochemistry revealed no remarkable effect to the patient's general condition. Gastroscopy revealed erosion, erythema in mucosal surface of gastric lesions and endoscopic biopsy performed. No significant findings in upper gastrointestinal series were observed, and histopathologic examination revealed infiltration of lymphocyte in the gastric mucosa. Based on these findings, the dog was diagnosed with lymphocytic gastritis. The dog were treated by metronidazole and ranitidine with hypoallergenic diet, and then the patient showed no vomiting or other complications.
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저온온열치료에 의한 종양 내 저산소상태 개선효과를 18F-Fluoromisonidazole의 섭취 변화를 이용한 평가
이상욱(Sang-wook Lee),류진숙(Jin Sook Ryu),오승준(Seung Joon Oh),임기천(Ki Chun Im),천기정(Gi Jeong Chen),이소령(Ryung Lee),송도영(Do Young Song),임수정(Soo Jeong Im),문은숙(Eun Sook Moon),김종훈(Jong Hoon Kim),안승도(Seung Do Ahn),신 대한방사선종양학회 2004 Radiation Oncology Journal Vol.22 No.4
목 적: 종양 내에서 산소공급 부족현상으로 발생하는 저산소증 조직에서 저온온열치료(42oC)와 nicotinamide 에 의한 perfusion limited 저산소증의 개선 효과를 마우스 종양 모델을 이용하여 종양 내 [18F]FMISO 섭취변화 를 이용하여 증명할 수 있는지 알아보고자 하였다. 대상 및 방법: C3H 마우스에 [18F]FMISO를 정주하고 11개 장기에서 %ID/g을 구하여 biodistribution을 관찰하였다. 또한 같은 마우스에 동종 종양세포인 SCC7을 이식하여 종양모델을 만들고 저온온열치료(42oC)와 nicotinamide를 투여한 마우스와 대조군 마우스에서 [18F]FMISO의 섭취정도 차이를 %ID/g, autoradiography, PET scan을 시행하여 비교하고자 하였다. 결 과: 대조군에서 종양의 FMISO의 섭취는 5.1+/-2.28 %ID/g였고, 종양/근육, 종양/혈액의 섭취비는 2.2와 1.8이었다. 실험군에서는 각각 2.4+/-0.64 %ID/g, 1.4와 1.2를 나타내어 대조군보다 유의하게 낮았다(p<0.021). Autoradiography에서 대조군의 종양 내부에 FMISO가 섭취됨을 확인하였고, 저온온열치료와 nicotinamide를 투여한 실험군에서는 섭취가 감소된 것을 관찰하였다. 결 론: C3H 마우스와 동종 종양세포인 SCC-VII을 이용한 종양모델에서 [18F]FMISO가 종양내에 섭취가 되어 자산소증 종양모델로 적절함을 확인하였고, 저온온열치료(42oC)와 nicotinamide에 의한 perfusion limited 저산소증 개선효과를 [18F]FMISO의 종양 내 섭취가 감소하는 것을 통하여 확인할 수 있었다. Purpose: The aims of this study were to evaluate the change of [18F]fluoromisonidazole ([18F]FMISO) uptake in C3H mouse squamous cell carcinoma-VII (SCC-VII) treated with mild hyperthermia (42oC) and nicotinamide and to assess the biodistribution of the markers in normal tissues under similar conditions. Methods and Materials: [18F]FMISO was producedby our hospital. Female C3H mice with a C3H SCC-VII tumor grown on their extremities were used. Tumors were size matched. Non-anaesthetized, tumor-bearing mice underwent control or mild hyperthermia at 42oC for 60 min with nicotinamide (50 mg/kg i.p. injected) and were examined by gamma counter, autoradiography and animal PET scan 3 hours after tracer i.v. injected with breathing room air. The biodistribution of these agents were obtained at 3 h after [18F]FMISO injection. Blood, tumor, muscle, heart, lung, liver, kidney, brain, bone, spleen, and intestine were removed, counted for radioactivity and weighed. The tumor and liver were frozen and cut with a cryomicrotome into 10-μm sections. The spatial distribution of radioactivity from the tissue sections was determined with digital autoradiography. Results: The mild hyperthermia with nicotinamide treatment had only slight effects on the biodistribution of either marker in normal tissues. We observed that the whole tumor radioactivity uptake ratios were higher in the control mice than in the mild hyperthermia with nicotinamide treated mice for [18F]FMISO (1.56±1.03 vs. 0.67± 0.30; p=0.063). In addition, autoradiography and animal PET scan demonstrated that the area and intensity of [18F]FMISO uptake was significantly decreased. Conclusion: Mild hyperthermia and nicotinamide significantly improved tumor hypoxia using [18F]FMISO and this uptake reflected tumor hypoxic status.
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