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Tongue Flap을 이용하여 치료한 아랫입술의 편평세포암
박지혜 ( Ji Hye Park ),박혜영 ( Hae Young Park ),김초록 ( Cho Rok Kim ),신현태 ( Hyun Tae Shin ),박향준 ( Hyang Joon Park ),이동윤 ( Dong Youn Lee ),이주흥 ( Joo Heung Lee ),양준모 ( Jun Mo Yang ),이일수 ( El Soo Lee ) 대한피부과학회 2010 대한피부과학회지 Vol.48 No.7
The lips have important functional and esthetic facial features and the lips are used for relatively simple tasks, such as retaining oral contents, as well as for complex functions such as mastication, speech and expressing emotion. Therefore, it is esthetically and functionally critical to maintain the normal position and contour of the lips during reconstructive surgery. However, the freely movable nature of the vermilion and the cutaneous lip makes this area highly susceptible to distortion. We report here on a case of squamous cell carcinoma on the lower lip and the extensive surgical defect that resulted from total vermilionectomy and wedge resection of the lip was repaired with the tongue flap. (Korean J Dermatol 2010;48(7):620∼623)
Highly scalable saddle MOSFET for high-density and high-performance DRAM
Park, Ki-Heung,Han, Kyoung-Rok,Lee, Jong-Ho IEEE 2005 IEEE electron device letters Vol.26 No.9
We proposed an MOS device structure with a recess channel and side gate, and characterized key features of the device through three-dimensional device simulation for the first time. Device characteristics with recess depth and source/drain doping were carefully investigated in terms of the threshold voltage (V<SUB>th</SUB>), off-state leakage current (I<SUB>off</SUB>), subthreshold swing (SS), and drain-induced barrier lowering (DIBL). The saddle MOSFET showed less V<SUB>th</SUB> sensitivity with the recess depth and at least 10<SUP>3</SUP> times higher I<SUB>on</SUB>/I<SUB>off</SUB> than conventional recess channel MOSFET. It was also shown that maximum lightly doped drain doping to guarantee I<SUB>off</SUB> less than 1 fA is about 1.5×10<SUP>19</SUP> cm<SUP>-3</SUP>.
Kyeong-Rok Kang,Jae-Sung Kim,Jeong-Yeon Seo,HyangI Lim,Tae-Hyeon Kim,Sun-Kyoung Yu,Heung-Joong Kim,Chun Sung Kim,Hong Sung Chun,Joo-Cheol Park,Do Kyung Kim 대한생리학회-대한약리학회 2022 The Korean Journal of Physiology & Pharmacology Vol.26 No.1
The aim of the present study was to investigate the physiological role of nicotinamide phosphoribosyltransferase (NAMPT) associated with odontogenic differentiation during tooth development in mice. Mouse dental papilla cell-23 (MDPC- 23) cells cultured in differentiation media were stimulated with the specific NAMPT inhibitor, FK866, and Visfatin (NAMPT) for up to 10 days. The cells were evaluated after 0, 4, 7, and 10 days. Cell viability was measured using the 3-(4,5-dimethylthiazol- 2-yl)-2,5-diphenyltetrazolium bromide assay. The mineralization assay was performed by staining MDPC-23 cells with Alizarin Red S solution. After cultivation, MDPC-23 cells were harvested for quantitative PCR or Western blotting. Analysis of variance was performed using StatView 5.0 software (SAS Institute Inc., Cary, NC, USA). Statistical significance was set at p < 0.05. The expression of NAMPT increased during the differentiation of murine odontoblast-like MDPC-23 cells. Furthermore, the up-regulation of NAMPT promoted odontogenic differentiation and accelerated mineralization through an increase in representative odontoblastic biomarkers, such as dentin sialophosphoprotein, dentin matrix protein-1, and alkaline phosphatase in MDPC-23 cells. However, treatment of the cells with the NAMPT inhibitor, FK866, attenuated odontogenic differentiation, as evidenced by the suppression of odontoblastic biomarkers. These data indicate that NAMPT regulated odontoblastic differentiation through the regulation of odontoblastic biomarkers. The increase in NAMPT expression in odontoblasts was closely related to the formation of the extracellular matrix and dentin via the Runx signaling pathway. Therefore, these data suggest that NAMPT is a critical regulator of odontoblast differentiation during tooth development.