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An Seungwon,Nedumaran Balachandar,Koh Hong,Joo Dong Jin,Lee Hyungjo,Park Chul-Seung,Harris Robert A.,Shin Keong Sub,Djalilian Ali R.,Kim Yong Deuk 생화학분자생물학회 2023 Experimental and molecular medicine Vol.55 No.-
Melatonin is involved in the regulation of various biological functions. Here, we explored a novel molecular mechanism by which the melatonin-induced sestrin2 (SESN2)-small heterodimer partner (SHP) signaling pathway protects against fasting- and diabetes-mediated hepatic glucose metabolism. Various key gene expression analyses were performed and multiple metabolic changes were assessed in liver specimens and primary hepatocytes of mice and human participants. The expression of the hepatic cereblon (CRBN) and b-cell translocation gene 2 (BTG2) genes was significantly increased in fasting mice, diabetic mice, and patients with diabetes. Overexpression of Crbn and Btg2 increased hepatic gluconeogenesis by enhancing cyclic adenosine monophosphate (cAMP)-responsive element-binding protein H (CREBH), whereas this phenomenon was prominently ablated in Crbn null mice and Btg2-silenced mice. Interestingly, melatonin-induced SESN2 and SHP markedly reduced hepatic glucose metabolism in diabetic mice and primary hepatocytes, and this protective effect of melatonin was strikingly reversed by silencing Sesn2 and Shp. Finally, the melatonin-induced SESN2-SHP signaling pathway inhibited CRBN- and BTG2-mediated hepatic gluconeogenic gene transcription via the competition of BTG2 and the interaction of CREBH. Mitigation of the CRBN-BTG2-CREBH axis by the melatonin-SESN2-SHP signaling network may provide a novel therapeutic strategy to treat metabolic dysfunction due to diabetes.
신승원,이지원,황민우,이준희,고병희,이의주,Shin, Seungwon,Lee, Jiwon,Hwang, Minwoo,Lee, Junhee,Koh, Byunghee,Lee, Euiju 사상체질의학회 2016 사상체질의학회지 Vol.28 No.3
Objectives This study aimed at proposing a hypothetical principle to add or abstract herbs for modifying Taeeumjowi-tang.Method Based on Jema Lee's literatures such as Dongyisusebowon and Dongyisasangsipyeon, we analyzed contents related to Taeeumjowi-tang and its modification. Moreover, we reviewed physiological and pathological pecularities of Taeeumin symptomatology and applied the theory to induce the principle of the modified Taeeumjowi-tang in Sasang medicine.Results and Conclusions 1) We have found 10 modified Taeeumjowi-tang from Dongyisasangsipyeon. 2) Mahwangjowi-tang (麻黃調胃湯), Gogijowi-tang (固氣調胃湯), Shingijowi-tang (腎氣調胃湯), Euiyiinjowi-tang (薏苡仁調胃湯), Gamijowi-tang (加味調胃湯), and Gyeongheomjowi-tang (經驗調胃湯) are modified for Taeeumin who have original symptoms of more severe cold tendency. Especially, Gogijowi-tang helps to circulate energy-fluid from esophagus to skin, while Shingijowi-tang directly aids the function of esophagus. 3) Seungjijowi-tang (升芷調胃湯), Seunggeumjowi-tang (升芩調胃湯), Seunggijowi-tang (承氣調胃湯), and Jowisokmyung-tang (調胃續命湯) are modified for Taeeumin who have originally cold symtoms, accompanied by heat tendencies. Especially, Seungjijowi-tang helps to eliminate mild heat existing throughout skin and flesh, while Seunggeumjowi-tang gets rid of severe heat swarming in the flesh parts. Seunggijowi-tang can take away the most severe heat symptoms in the whole body
Electromyographic analysis according to shoe weight during ambulation
Lee, Eunsang,Lee, Byunghoon,Cho, Juchul,Lee, Yongwoo,Lee, Seungwon korean Academy of Physical Therapy Rehabilitation 2015 Physical therapy rehabilitation science Vol.4 No.2
Objective: To examine the effects of different shoe weights on lower leg muscle fatigue when walking by electromyographic (EMG) analysis due to the most effective weight for loading not being established. Design: Cross-sectional study. Methods: Thirty healthy university students (15 male, 15 female) were enrolled and randomly assigned into three conditions, which included wearing athletic shoes with an addition of 300 g, 500 g, and 1,000 g weights respectively. Prior to walking, all subjects were instructed to sit in a chair for 10 minutes. All subjects walked at a speed of 3.6 m/s on a treadmill for 20 minutes without rest. EMG measurements were taken using the median power frequency to assess for the effect of the different weight of shoes on muscle fatigue of the soleus, gastrocnemius, and tibialis anterior while walking on a treadmill in an upright posture. EMG measurements were taken during the first and last 30 seconds of walking. Results: In terms of muscle fatigue, for the soleus, the median power frequency was significantly lower with 1,000 g compared with 300 g and 500 g (p<0.05). For the tibialis anterior, the median power frequency was significantly lower with 1,000 g than 300 g and 500 g (p<0.05). For the gastrocnemius, the median power frequency was significantly lower with 1,000 g compared with 300 g (p<0.05). Conclusions: Increased shoe weight increases soleus, gastrocnemius, and tibialis anterior muscle fatigue during ambulation.
Lee, Seungwon,Kim, Hyekang,You, Gihoon,Kim, Young-Min,Lee, Seunghun,Le, Viet-Hoan,Kwon, Ohseop,Im, Sin-Hyeog,Kim, You-Me,Kim, Kwang Soon,Sung, Young Chul,Kim, Ki Hean,Surh, Charles D.,Park, Yunji,Lee, American Society of Hematology 2019 Blood Vol.134 No.16
<B>Abstract</B><P>Lee and colleagues investigated the role of the intestinal microbiota in steady-state hematopoieisis, demonstrating that microbiota-derived DNA circulates to the bone marrow, where uptake by mononuclear cells leads to inflammatory cytokine production favoring myeloid-cell maturation of hematopoietic progenitors.</P>
이승원(Seungwon Lee),문원경(Wongyeong Moon),문현주(Hyeonju Moon),박재록(Jaerok Park),송명호(Myeongho Song),이승용(Seungyong Lee),이승연(Seungyon-Seny Lee) 한국HCI학회 2019 한국HCI학회 학술대회 Vol.2019 No.2
본 연구는 빠르게 변하는 미래의 일자리 변화와 과학기술의 현황을 STEAM 프로그램 개발을 통해 진로 · 직업 중심의 교육 콘텐츠를 보급하는 것이 목적이다. 미래직업 연계형 분야를 ‘가상환경과 미래직업’이라는 주제로 방향을 설정하여 ‘블록체인’, ‘가상화폐’, ‘공유경제’, ‘디지털 집단지성’, ‘스마트홈’, ‘스마트 헬스케어’라는 6 가지 콘텐츠를 선정하였다. 개발 프로그램은 태블릿 PC, 노트북과 같은 디지털 기기를 활용하여 프로그램을 진행하였으며, 주제별로 발생할 수 있는 사회적 · 윤리적 문제를 토의와 토론을 통해 해결방안을 모색하도록 구성하였다. 개발한 STEAM 프로그램은 서울지역 중학교 5 곳과 경기도 지역 고등학교 2 곳 총 7 개 학교에서 교사 10 명, 학생 491 명을 대상으로 시범 적용을 하였다. 가상환경이라는 범위 안에 6 가지 주제가 서로 연계되듯이 이와 관련된 미래직업도 다양한 분야에서 서로 연계되어 생각해 볼 수 있다는 것에 의미가 있다.
A phosphodiesterase-5 inhibitor as a potential therapeutic effector following mild ischemic stroke
Juhyeon Kang,Yeon Hee Yu,Kahyun Lee,Gangho Kim,Jaehyeon Park,Kyounguk Lee,Hansol Lee,Whiin Lee,Seungwon Choi,Dae-Young Yoo,In Koo Hwang,Dae-Kyoon Park,Kyung-Ho Park,Man-Ryul Lee,Jae-Sang Oh,Duk-Soo Ki 대한체질인류학회 2018 대한체질인류학회 학술대회 연제 초록 Vol.61 No.-
Detection Schemes for Range-Spread Targets Based on the Semidefinite Problem
Lee, Seungwon,Nguyen, Mai,Song, Iickho,Bae, Jinsoo,Yoon, Seokho IEEE 2019 IEEE transactions on aerospace and electronic syst Vol.55 No.1
<P>Employing the generalized likelihood ratio test and semidefinite programming (SDP), we derive two detectors, called the SDP and maximization in the reduced space (MRS) detectors for range-spread targets with unknown Doppler shift. It is confirmed that, when knowledge of Doppler frequency is unavailable or imperfect, the proposed detectors perform better than the conventional detector. The MRS detector also outperforms the SDP and conventional detectors in some cases, including when the range-spread target is highly fluctuating.</P>
Implementation of Video Mirroring System based on IP
Lee, Seungwon,Kwon, Soonchul,Lee, Seunghyun The Institute of Internet 2022 International journal of advanced smart convergenc Vol.11 No.2
The recent development of information and communication technology has a great impact on the audio/video industry. In particular, IP-based AoIP transmission technology and AVB technology are making changes in the audio/video market. Video signal transmission technology has been introduced to the market through a network, but it has not replaced the video switcher function. Video signals in the conference room or classroom are still controlled by the switching device. In order to switch input/output video devices, a cable that is not limited by distance must be connected to the switcher. In addition, the control of the switching device must be performed by a person who has received professional training. In this paper, it is a technology that can be operated even by non-experts by replacing complex video cables (RGB, DVI, HDMI, DP) with LAN cables and enabling IP-based video switching and transmission (Video Mirroring over IP: VMoIP) to replace video switcher equipment. We are going to do this study, I/O videos were controlled in the form of matrix and high-definition videos were transmitted without distortion, and VMoIP is expected to become the standard for video switching systems in the future.