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정은선 ( Eun Sun Jung ),이종성 ( Jong Sung Lee ),정광선 ( Kwang Seon Jung ),김새봄 ( Sae Bom Kim ),허성란 ( Sung Ran Huh ),박덕훈 ( Deok Hoon Park ) 대한화장품학회 2007 대한화장품학회지 Vol.33 No.3
본 연구에서는 제주도에서 자생하는 30여 종의 식물추출물에 대한 항비만 효능을 조사하였다. 항비만 효능은 in vitro oil red-O staining 방법을 이용하여 지방전구세포 3T3-L1에서 분화억제력을 측정하였다. 그 결과, 30여 종의 식물 중에서 약도라지, 호장근, 유근피 등을 포함한 6종의 식물이 지방전구세포 3T3-L1의 분화를 억제하였다. 지방전구세포의 분화를 억제하는 물질 중 유근피, 약쑥, 호장근, 후박 4종은 우수한 항산화 효능도 동시에 가지고 있음을 확인하였다. 이러한 결과를 통해, 본 실험에서 확보된 추출물이 항비만 물질로 사용될 수 있는 가능성을 확인하였다. In this study, we investigated the anti-obesity activity of extracts collected from wild plants in Jeju island. The inhibitory effect of plant extracts on the differentiation of preadipocyte 3T3-L1 was examined by oil red-O staining. We found that extracts collected from 6 plants among 31 plants, namely, Aralia elata (Miq.) Seem, Polygonum multiflorum Thunberg, Artemisia asiatica, Platycodon grandiflorum (Jacq.) A. Dc., Polygonum cuspidatum S. et Z., Magnolia obovata Thunb, significantly inhibited preadipocyte differentiation. Additionally, 4 plant extracts were also found to have antioxidant activities in DPPH radical scavenging assay. Taken together, these results show that 6 plant extracts suppress the differentiation of preadipocytes, suggesting the potential use of 6 plant extracts as anti-obesity agents.
이정아(Jung-A Lee),정광선(Kwang-Seon Jung),김명옥(Myeong-Ok Kim),박덕훈(Deok-Hoon Park),정은선(Eun-Sun Jung) 한국화장품미용학회 2015 한국화장품미용학회지 Vol.5 No.2
The aim of the study to optimize the extraction yield and the radical scavenging activity from the Hypocheris radicata flower using four different extraction protocols was carried out. Fresh part hot-water extract, fresh part 70% ethanol extract, dried part hot-water extract and dried part 70% ethanol extract were used for comparison purpose. We evaluated the total phenolic and flavonoid contents in test samples, and antioxidant activity by using 1,2-diphenyl-2-picryl hydrazyl(DPPH) and Ferric reducing antioxidant power(FRAP). The fresh part hot-water extracts displayed the strongest DPPH and FRAP activity and highest total phenolic and flavonois contents. Moreover, the fresh of hot-water extracts had the highest level of caffeic acid.
김정수 ( Jung Soo Kim ),민경선 ( Kyung Sun Min ),최석진 ( Seok Jin Choi ),남해성 ( Hae Sung Nam ),조재화 ( Jae Hwa Cho ),정은선 ( Eun Seon Jeong ),주고운 ( Ko Woon Joo ) 대한내과학회 2010 대한내과학회지 Vol.79 No.6
Primary pulmonary lymphoma is a rare disease, and non-B cell lymphomas (T-cell and natural killer cell lymphomas) involving the lung parenchyma are uncommonly reported. The most common radiological feature of pulmonary parenchymal lymphoma is a single mass or nodule. A 49-year-old woman with dyspnea was referred with suspicion of severe pneumonia. A chest radiograph showed diffuse nodular infiltration in both lungs. Acute respiratory failure was severe and rapidly progressive, so she was managed with a mechanical ventilator under the impression of acute respiratory distress syndrome (ARDS). A bronchoalveolar lavage and lung biopsy by video-assisted thoracic surgery revealed NK-T cell lymphoma. We report a case of extranodal NK-T cell lymphoma presenting as ARDS. (Korean J Med 79:697-700, 2010)
김명희(Myung-Hee Kim),정은선(Eun-Seon Jeong),김은주(Eun-Ju Kim),조혜경(Hye-Kyung Cho),배윤정(Yun-Jung Bae),최미경(Mi-Kyeong Choi) 동아시아식생활학회 2011 동아시아식생활학회지 Vol.21 No.4
The purpose of this study was to investigate night-time eating habits, and dietary habit and nutrient intake of university students in a particular area of Chungnam. We surveyed night-time eating status, frequency, and preference for eating foods at night in 458 university students. We divided the subjects into two groups according to their night-time eating habits and gender and compared dietary behavior, lifestyle, and nutrient intake between the groups. In total, 77.1% of the students ate a night-time snack. The major reason why they ate a night-time snack was hunger. The cost of the night-time snacks was 3,000~10,000 won and they ate mostly with their friends. The order of frequent night-time eating foods was beverage, milk and its products, snacks, flour foods, and fruits. The subjects with a night-time eating habit skipped breakfast, went to bed late, and drank alcohol more than subjects without a night-time eating habit. Total and animal fat intake of subjects with a night-time eating habit in both men and women were significantly higher than subjects without a night-time eating habit. In conclusion, night-time eating by university students may be a bad habit from the viewpoint of skipping breakfast, drinking alcohol, and eating a high fat diet. Therefore, in support of proper dietary management, it is necessary to form positive dietary habits, including night-time eating.
OpenAirInterface를 통한 모바일 코어네트워크 보안위협 분석
오인수(In Su Oh),박준용(Jun Young Park),정은선(Eun Seon Jung),임강빈(Kang Bin Yim) 한국스마트미디어학회 2020 스마트미디어저널 Vol.9 No.3
이동통신망은 통화, 메시지, 데이터 전송 등의 서비스를 위하여 많은 사용자들이 전 세계적으로 사용하고 있는 네트워크이다. 이동통신망은 긴급재난망으로도 사용되고 있는 국가적으로 중요한 공공자산이며 이동통신망에서 사이버 공격이나 통신 방해를 이용한 서비스거부공격이 발생할 경우 다양한 피해를 초래할 수 있다. 그러므로 이러한 이동통신망에 대한 안전성 검증이 필수적이나 정해진 몇몇 이동통신사업자들이 망을 구축하여 폐쇄적으로 서비스하고 있고 망의 안전성 검증을 위한 테스트 망이 따로 존재하지 않아 실제로 이동통신망의 코어네트워크를 분석하기는 쉽지 않다. 따라서 본 논문에서는 3GPP 표준을 기반으로 구현하여 오픈소스로 제공되는 OpenAirInterface를 이용하여 가상의 이동통신망을 구축하고 이를 기반으로 코어네트워크 구조와 프로토콜을 분석한다. 특히 단말기에서 전송되는 메시지가 코어네트워크에 미치는 영향을 분석하기 위하여 기지국인 eNodeB와 단말기를 관리하는 MME 사이의 인터페이스인 S1-MME에서의 S1AP 프로토콜 메시지를 분석하여 보안 위협의 실현 가능성을 확인한다. Mobile network is used by many users worldwide for diverse services, including phone-call, messaging and data transfer over the Internet. However, this network may experience massive damage if it is exposed to cyber-attacks or denial-of-service attacks via wireless communication interference. Because the mobile network is also used as an emergency network in cases of disaster, evaluation or verification for security and safety is necessary as an important nation-wide asset. However, it is not easy to analyze the mobile core network because it’s built and serviced by private service providers, exclusively operated, and there is even no separate network for testing. Thus, in this paper, a virtual mobile network is built using OpenAirInterface, which is implemented based on 3GPP standards and provided as an open source software, and the structure and protocols of the core network are analyzed. In particular, the S1AP protocol messages captured on S1-MME, the interface between the base station eNodeB and the mobility manager MME, are analyzed to identify potential security threats by evaluating the effect of the messages sent from the user terminal UE to the mobile core network.