Hwa Sun Ryu, Hong Kyung Lee, Ji Sung Kim, Yong Guk Kim, Minji Pyo, Jieun Yun, Bang Yeon Hwang, Jin Tae Hong, Young Soo Kim, Sang‐Bae Han,
Saururus chinensis is a medicinal plant used to treat jaundice, pneumonia, edema, fever, and several inflammatory diseases. Saucerneol D (SD), a lignan constituent of this plant, has antioxidant, anti-asthmatic, and anti-inflammatory activities. SD has been previously reported to inhibit the pro-inflammatory responses of RAW264.7 cells and primary mast cells. In this study, we investigated the effect of SD on the functions of dendritic cells (DCs). SD was isolated from methanol extract of the roots ...
Tópico(s): Mast cells and histamine
2015 - Elsevier BV | Journal of Ethnopharmacology
Hyung Sook Kim, Ki Hwan Park, Hong Kyung Lee, Ji Sung Kim, Yong Guk Kim, Jae Hee Lee, Ki Hun Kim, Jieun Yun, Bang Yeon Hwang, Jin Tae Hong, Young Soo Kim, Sang‐Bae Han,
Curdlan, a β-1,3-glucan isolated from Alcaligenes faecalis, is an agonist of dectin-1 in various immune cells, including dendritic cells (DCs). However, whether curdlan also activates DCs through other receptors remains unknown. In this study, we found that curdlan activates DCs through dectin-1 and toll-like receptor 4 (TLR4). Curdlan increased the expression levels of surface molecules (CD40, CD80, CD86, and MHC-I/II), the production of cytokines (IL-12, IL-1β, TNF-α, and IFN-β), migration toward ...
Tópico(s): Immune Cell Function and Interaction
2016 - Elsevier BV | International Immunopharmacology
Bang-Hyun Ko, Hyeonjoon Moon, Yong-Guk Kim, Seungbin Moon, Jong Weon Lee,
CCTV, 로봇 등의 시스템으로부터 획득된 이미지에는 많은 얼굴 영상이 포함되어 있다. 영상 데이터의 급증으로 이들을 수동 처리하는 것은 어렵고 자동으로 처리할 필요가 있다. 또한 기업은 새로운 기술을 보호하고자 더욱 자동화된 보안 시스템을 요구한다. 그러한 문제를 해결하고자 얼굴인식, 동공인식, 지문인식 등의 방법이 사용된다. 얼굴인식 방법이 직접적인 접촉을 요구하지 않아 많이 사용되고 있으나 현재주로 사용되는 2차원 방식에는 한계가 있으며 이러한 것을 해결할 방안으로 Morphable모델을 생각할 수 있다. MPI에서 만들어진 기존의 Morphable 모델은 텍스쳐(texture), 지오메트리(geometry)와 같은 대량의 데이터로 구성된다. 본 논문은 이러한 용량을 줄이고자 GeometriX에 기반한 Morphable 모델 생성을 다룬다. The images, which were acquired from various systems such as CCTV and Robot, ...
Tópico(s): Consumer Perception and Purchasing Behavior
2007 - Korea Contents Associaition | The Journal of the Korea Contents Association
Yunsoo Park, Hwa Sun Ryu, Ji Sung Kim, Ju Young Kim, Yong Guk Kim, Min Ji Pyo, Mi Jeong Park, Hong Kyung Lee, Bang Yeon Hwang, Young‐Soo Kim, Sang‐Bae Han,
Abstract Sesquiterpenoid tussilagone (TUS) has a variety of pharmacological activities. In this study, the effects of TUS on dendritic cell (DC) functions and the underlying mechanisms were investigated. TUS inhibited lipopolysaccharide (LPS)-induced activation of DCs, which was proved by the decreases of surface molecule expression, cytokine production, antigen uptake, migration, and allogenic T cell activation. TUS inhibited LPS-induced activation of NF-kB, MAPKs, and IRF-3 signalings. However, TUS ...
Tópico(s): Paraquat toxicity studies and treatments
2014 - American Association of Immunologists | The Journal of Immunology