http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Primary signet-ring cell adenocarcinoma of the uterine cervix
( Seon Ui Lee ),( Ki Sung Ryu ),( Tae Chul Park ),( Jin Hwi Kim ) 대한산부인과학회 2018 대한산부인과학회 학술대회 Vol.104 No.-
Primary signet ring cell adenocarcinoma of uterine cervix is extremely rare. Signet ring cell carcinoma is more commonly primary in the stomach, colon, and breast. In this case, we present a primary signet ring cell adenocarcinoma of uterine cervix. A 44-year-old woman was referred to our hospital for abnormal uterine bleeding for 1 month. Colposcopy showed bulky uterine cervix with irregular margin and easy-touch bleeding. Punch biopsy revealed a signet ring celltype adenocarcinoma and human papilloma virus (HPV) type 18 was detected. After gastroscopy, Sigmoidoscopy and breast sonography, suspected primary sites were ruled out. Magnetic resonance imaging (MRI) and positron emission tomography (PET) images showed 6.8 cm sized cervical mass with diffusion restriction which invades right parametrium and metastatic lymph nodes in the left obturator, external iliac, bilateral common iliac and presacral area. After single port para-aortic lymph node dissection, the patient prescribed concomitant chemo-radiation followed by intracavitary brachytherapy. Followed-up at 3 months showed no evidence of disease. Signet ring cell adenocarcinoma is rare subtype of uterine cervix, thus it is critical to rule out metastatic disease. To establish guidelines, it seems to be important for reporting this rare type of cancer.
태양광 발전 시스템에서 전압 변조 방법에 따른 단상 5레벨 NPC 인버터의 열 부하 분석
류태림(Tae-Rim Ryu),최의민(Ui-Min Choi) 전력전자학회 2021 전력전자학술대회 논문집 Vol.2021 No.7
본 논문은 대표적인 단상 5레벨 태양광 인버터인 I-type과 T-type NPC 인버터의 전압 변조 방법에 따른 전력손실 및 열부하를 분석한다. 인버터의 구조와 스위칭 방법에 따라 전력손실이 달라지며 이는 전력 반도체 스위치에 서로 다른 접합온도를 야기한다. 2개의 레그에 일정한 구간에 불연속 전압 변조 방법을 적용하고 적용구간 변경에 따른 I-type과 T-type NPC 인버터의 전력손실 및 IGBT 접합온도 결과를 분석한다.
Shim, Ui Jae,Lee, Il-Seok,Kang, Ho Won,Kim, Jayoung,Kim, Won Tae,Kim, Isaac Yi,Ryu, Keun Ho,Choi, Yung Hyun,Moon, Sung-Kwon,Kim, Yong-June,Yun, Seok-Joong,Lee, Sang-Cheol,Kim, Wun-Jae The Korean Urological Association 2013 Korean Journal of Urology Vol.54 No.9
<P><B>Purpose</B></P><P>The deleted in bladder cancer 1 (<I>DBC1</I>) gene is located within chromosome 9 (9q32-33), a chromosomal region that frequently shows loss of heterozygosity in bladder cancer (BC). It is suspected that it acts as a tumor suppressor gene, but its prognostic value remains unclear. The aim of the present study was to investigate the value of <I>DBC1</I> as a prognostic marker in BC.</P><P><B>Materials and Methods</B></P><P>The expression of <I>DBC1</I> was determined by real-time polymerase chain reaction analysis in 344 patients with BC (220 non-muscle-invasive BC [NMIBC] and 124 muscle-invasive BC [MIBC]) and in 34 patients with normal bladder mucosa. The results were compared with clinicopathologic parameters, and the prognostic value of <I>DBC1</I> was evaluated by Kaplan-Meier analysis and a multivariate Cox regression model.</P><P><B>Results</B></P><P><I>DBC1</I> expression was significantly decreased in patients with MIBC compared with those diagnosed with NMIBC (p=0.010). Patients with aggressive tumor characteristics had lower <I>DBC1</I> expression levels in NMIBC (each, p<0.05). By multivariate Cox regression analysis, low <I>DBC1</I> expression was a predictor of progression to MIBC (hazard ratio, 7.104; p=0.013). Kaplan-Meier estimates revealed a significant difference in tumor recurrence, progression to MIBC, and cancer-specific survival depending on the level of <I>DBC1</I> expression in NMIBC (log-rank test, each, p<0.05).</P><P><B>Conclusions</B></P><P>The expression of <I>DBC1</I> was associated with tumor aggressiveness, progression to MIBC, and survival in NMIBC. Our results suggest that <I>DBC1</I> expression can be a useful prognostic marker for patients with NMIBC.</P>
Lee, Su Ui,Lee, Seoghyun,Ro, Hyunju,Choi, Ji-Hee,Ryu, Hyung Won,Kim, Mun-Ock,Yuk, Heung Joo,Lee, Jinhyuk,Hong, Sung-Tae,Oh, Sei-Ryang Elsevier 2018 Phytomedicine Vol.40 No.-
<P>Conclusion: We propose that piscroside C is a promising therapeutic constituent of YPL-001 through its inhibition of PKC delta activity in the TNF-RSC/IKK/NF-kappa B/MUC5AC signaling cascade.</P>
Lee, Su Ui,Ahn, Kyung-Seop,Sung, Min Hee,Park, Ji-Won,Ryu, Hyung Won,Lee, Hyun-Jun,Hong, Sung-Tae,Oh, Sei-Ryang Korean Society for Molecular and Cellular Biology 2014 Molecules and cells Vol.37 No.8
The ${\beta}_2$ adrenergic receptor (ADRB2) is a G protein-coupled transmembrane receptor expressed in the human respiratory tract and widely recognized as a pharmacological target for treatments of asthma and chronic obstructive pulmonary disorder (COPD). Although a number of ADRB2 agonists have been developed for use in asthma therapy, indacaterol is the only ultra-long-acting inhaled ${\beta}_2$-agonist (LABA) approved by the FDA for relieving the symptoms in COPD patients. The precise molecular mechanism underlying the pharmacological effect of indacaterol, however, remains unclear. Here, we show that ${\beta}$-arrestin-2 mediates the internalization of ADRB2 following indacaterol treatment. Moreover, we demonstrate that indacaterol significantly inhibits tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$)-induced NF-${\kappa}B$ activity by reducing levels of both phosphorylated-IKK and -$I{\kappa}B{\alpha}$, thereby decreasing NF-${\kappa}B$ nuclear translocation and the expression of MMP-9, an NF-${\kappa}B$ target gene. Subsequently, we show that indacaterol significantly inhibits TNF-${\alpha}$/NF-${\kappa}B$-induced cell invasiveness and migration in a human cancer cell line. In conclusion, we propose that indacaterol may inhibit NF-${\kappa}B$ activity in a ${\beta}$-arrestin2-dependent manner, preventing further lung damage and improving lung function in COPD patients.
Lee, Jae-Won,Ryu, Hyung Won,Lee, Su Ui,Son, Tae Hyun,Park, Hyun Ah,Kim, Mun Ock,Yuk, Heung Joo,Ahn, Kyung-Seop,Oh, Sei-Ryang Elsevier 2017 Journal of Functional Foods Vol.32 No.-
<P><B>Abstract</B></P> <P>As part of an ongoing search for active compounds against pulmonary inflammation, a polyacetylene was isolated from <I>Dendropanax morbifera</I> leaves. The polyacetylene (9Z, 16S)-16-Hydroxy-9,17-octadecadiene-12,14-diynoic acid) was isolated from the chloroform fraction of methanolic extract of <I>D. morbifera</I> leaves based on the IL-6 inhibitory activity evaluated in NCI-H292 cells. In the murine model of cigarette smoke (CS) and lipopolysaccharide (LPS)-induced airway inflammation, the polyacetylene significantly attenuated the infiltration of inflammatory cells in BALF (broncoalveolar lavage fluid) and in the lung. In addition, this compound reduced ROS (reactive oxygen species) production and NE (neutrophil elastase) activity, and decreased the release of proinflammatory cytokines (TNF-α, IL-6) in BALF. Furthermore, the polyacetylene reduced mucus secretion and the activation of ERK, p-38 and NF-κB in the lung. These findings suggest that the polyacetylene might be valuable constituent of <I>D. morbifera</I> as a material for functional food alleviating pulmonary inflammation disease such as COPD.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Inhibition of pulmonary inflammation were observed on <I>Dendropanax morbifera</I> leaves. </LI> <LI> The extract and a polyacetylene from CHCl<SUB>3</SUB> layer inhibited IL-6 in NCI-H292 cells. </LI> <LI> The polyacetylene reduced ROS, NE, and cytokines in the BALF of murine model. </LI> <LI> The polyacetylene reduced mucus and activation of ERK, p-38 and NF-κB in the lung. </LI> </UL> </P>
Baek, Jeom-In,Kim, Ui-Sik,Jo, Hyungeun,Eom, Tae Hyoung,Lee, Joong Beom,Ryu, Ho-Jung Korea Electric Power Corporation 2016 KEPCO Journal on electric power and energy Vol.2 No.2
In chemical-looping combustion, pure oxygen is transferred to fuel by solid particles called as oxygen carrier. Chemical-looping combustion process usually utilizes a circulating fluidized-bed process for fuel combustion and regeneration of the reduced oxygen carrier. The performance of an oxygen carrier varies with the active metal oxide and the raw support materials used. In this work, spraydried Mn-based oxygen carriers were prepared with different raw support materials and their physical properties and oxygen transfer performance were investigated to determine that the raw support materials used are suitable for spray-dried manganese oxide oxygen carrier. Oxygen carriers composed of 70 wt% $Mn_3O_4$ and 30 wt% support were produced using spray dryer. Two different types of $Al_2O_3$, ${\gamma}-Al_2O_3$ and ${\alpha}-Al_2O_3$, and $MgAl_2O_4$ were applied as starting raw support materials. The oxygen carrier prepared from ${\gamma}-Al_2O_3$ showed high mechanical strength stronger than commercial fluidization catalytic cracking catalyst at calcination temperatures below $1100^{\circ}C$, while the ones prepared from ${\alpha}-Al_2O_3$ and $MgAl_2O_4$ required higher calcination temperatures. Oxygen transfer capacity of the oxygen carrier prepared from ${\gamma}-Al_2O_3$ was less than 3 wt%. In comparison, oxygen carriers prepared from ${\alpha}-Al_2O_3$ and $MgAl_2O_4$ showed higher oxygen transfer capacity, around 3.4 and 4.4 wt%, respectively. Among the prepared Mn-based oxygen carriers, the one made from $MgAl_2O_4$ showed superior oxygen transfer performance in the chemical-looping combustion of $CH_4$, $H_2$, and CO. However, it required a high calcination temperature of $1400^{\circ}C$ to obtain strong mechnical strength. Therefore, further study to develop new support compositions is required to lower the calcination temperature without decline in the oxygen transfer performance.