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이호정,공경엽,정동해,허주령,김온자,Lee, Ho-Jung,Gong, Gyung-Yub,Chung, Dong-Hae,Huh, Joo-Ryung,Kim, On-Ja 대한세포병리학회 1998 대한세포병리학회지 Vol.9 No.2
Fine needle aspiration cytology(FNAC) has become a popular method for the diagnosis of a wide variety of both superficial and deep-seated lesions. However, there are few reports about the potential of FNAC for the diagnosis of intraoral lesions. We experienced 44 FNACS from intraoral lesions at Asan Medical Center: 22 from the palate, 6 from the tongue, 5 from the parapharyngeal space, 5 from the lip, 2 from the floor of mouth, 1 from the buccal mucosa, and 3 from other intraoral sites. Histological confirmation was obtained in 32 cases and we analyzed 27 cases excluding 5 cases of inadequate aspirates. Diagnosis was specifically made in 19 of 27 cases(70%) including 1 mucoepidermoid carcinoma, 1 undifferentiated carcinoma, 1 chordoma, 9 pleomorphic adenomas, 1 neurofibroma, and 6 benign lesions. There were three false negative cases(sensitivity, 62.5%) and no false positive cases(specificity, 100%): Two cases diagnosed as "cystic lesion" were confirmed to be mucoepidermoid carcinomas and a case diagnosed as pleomorphic adenoma was proved to be adenoid cystic carcinoma. The results of our study suggest that FNAC is a useful technique in the diagnosis of intraoral lesion.
이호정 ( Ho Jung Lee ),홍정연 ( Jeong Yeon Hong ),박태흠 ( Tae Heum Park ),이성열 ( Sung Yul Lee ),이종석 ( Jong Suk Lee ),정의현 ( Euy Hyun Chung ),이상훈 ( Sang Hoon Lee ),김정은 ( Jung Eun Kim ) 대한피부과학회 2020 대한피부과학회지 Vol.58 No.6
Fixed drug eruption (FDE) is a drug-induced disorder that may appear as patches or bullae. It recurs at the same sites as those involved in exposure to the same drug (causative drug). We encountered two cases of generalized FDE, and both patients had a history of diclofenac exposure before the onset of skin lesions. In the first case, an 82-year-old female patient presented with multiple erythematous patches on the trunk and lower extremities. In the second case, a 71-year-old male patient developed multiple bullae on violaceous patches on the trunk and extremities. The findings of histopathologic examinations were indicative of the diagnosis of FDEs. Although diclofenac is commonly used as a non-steroidal inflammatory drug, diclofenac-induced generalized FDE occurs rarely and has not been reported in Korea. With reuse of causative drugs, the size and number of lesions tend to increase. Therefore, early diagnosis of FDE is important, and avoidance of repeated exposure to drugs should be educated
품종별 들깻잎 열수추출물의 caffeic acid와 rosmarinic acid의 함량 및 항산화력 비교
이현순(Hyun-Sun Lee),이현아(Hyun Ah Lee),홍충의(Chung-Oui Hong),양성용(Sung Yong Yang),홍성유(Sung Yu Hong),박상률(Sang Yul Park),이호정(Ho Jung Lee),이광원(Kwang-Won Lee) 한국식품과학회 2009 한국식품과학회지 Vol.41 No.3
본 연구는 품종별 들깻잎의 기능성 건강식품에 항산화력 측정과 생리활성물질인 caffeic acid와 rosmarinic acid의 함량 분석을 통하여 항산화관련 기능성 식품소재에 적합한 들깻잎의 품종을 찾기 위하여 수행하였다. 분쇄한 각 품종별 들깻잎을 환류 추출하여 여과한 후 동결 건조한 물질을 각 실험의 시료로 사용하였다. 총 폴리페놀 함유량을 측정한 결과, 보라들깨와 동글2호가 각각 69.4 g GAE/kg DM, 61.8 g GAE/kg DM로 높은 수치를 나타내었다. 그리고 항산화 실험 결과, FRAP에서는 보라들깨가 796mM FeSOsub{4}?7H2O/g DM로 가장 높은 항산화력을 가진 것으로 나타났으며, 그 뒤로 동글2호가 748 mM FeSOsub{4}?7H2O/g DM으로 높았고, DPPH 결과에서는 SCsub{50}값이 동글2호가 241 μg DM/mL로 가장 항산화력이 높았고, 그 다음으로 261 μg DM/mL로 보라들깨였다. 플라보노이드 함유량 측정에서는 늘보라들깨가 64.5 g QE/kg DM로 가장 높은 결과를 나타내었다. HPLC를 통하여 이미 잘 알려진 항산화제인 caffeic acid와 rosmarinic acid의 함유량을 측정한 결과, caffeic acid는 보라들깨에서, rosmarinic acid는 동글 2호에서 가장 높은 함유량을 나타내었다. 즉, 이 종합적인 비교를 통하여 항산화능력과 생리활성물질 함유량 측면에서 보라들깨와 동글2호가 가장 적합한 품종이라고 결론지을 수 있다. The principal objective of this investigation was to identify adequate species for the harvest of Perilla frutescens leaves, which provide profound antioxidant activities, and harbor abundant caffeic acid and rosmarinic acid. Namchun, Donggeul-2, Bora, Sae-bora and Neul-bora variants of the plant were assessed herein. In this study, we evaluated the antioxidant effects of these plants, and utilized an HPLC system to verify their caffeic acid and rosmarinic acid contents. Dried Perilla frutescens leaves were boiled at a temperature of 100℃ for three hours, and were lyopholized in a freezedryer. The extracts were then processed in order to confirm their antioxidant activities via 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging activity assay, ferric-reducing antioxidant power (FRAP) assay, total flavonoid content and total polyphenol content assays. According to the observed antioxidant results of the five tested species of Perilla frutescens leaves, Bora and Donggeul-2 were shown to have more potent antioxidant activities than the other tested variants. The scavenge 50% of DPPH radical (SCsub{50} of DPPH) values were 241 μg DM/mL in Donggeul-2 and 261 μg DM/mL in Bora. Based on the results of the FRAP assay, the Bora variant showed a value of 796 mM FeSOsub{4}?7Hsub{2}O/g DM, and Donggeul-2 exhibited a value of 748 mM FeSOsub{4}?7Hsub{2}O/g DM, of which the total polyphenol contents were measured as 69.4 g GAE/kg DM and 61.8 g GAE/kg DM, respectively. Moreover, the Bora variant had the highest level of caffeic acid, and Donggeul-2 showed the highest rosmarinic acid content among the tested samples (0.87 mg/100 g wet base and 121 mg/100 g wet base, respectively). According to the results of this experiment, we selected two species, Bora and Donggeul-2, which were both verified to contain adequate and favorable antioxidant activities.
김현성(Hyeon Seong Kim),이호정(Ho Chung Lee),강용덕(Yong Duck Kang),문종윤(Jong Yoon Moon),오가사와라(Isamu Ogasawara) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.10
For the countries facing the sea, it is important to grasp the hydrographic conditions by observing hydrographic phenomena and finding the tendency from the accumulated observation data. Ocean radar is a machine for observing currents and waves. The observation of currents and waves contributes to human lives in various fields safe navigation support: activities in industry. fishery, marine leisure: emergency response such as rescue support from accidents in the sea, the observation of Tsunami and storm surge, the forecast of diffusion of pollutants.
전혜숙 ( Hye Sook Chon ),이호정 ( Ho Jung Lee ),정호순 ( Ho Soon Chung ),한광수 ( Kwang Soo Hahn ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.4
Endometrial squamous cell carcinoma is extremely rare. In 1928 Fluhmann proposed three criteria to establish the diagnosis of endometrial squamous cell carcinoma: (1) no coexisting endometrial adenocarcinoma, (2) no connection between the endometrial tumo