소의 정원세포에서 Matrix Metalloproteinase-9(MMP-9) 발현 양상 구명

곽태일,이원영,정하연,이승윤,송혁 강원대학교 동물생명과학연구소(구 강원대학교 동물자원공동연구소) 2016 동물자원연구 Vol.27 No.2

Identification of specific marker proteins in cells is useful for isolating cells and determining their cellular characteristics and functions. Based on our previous study showing that matrix metalloproteinase 9 (MMP-9) can be used as a marker for porcine spermatogonia, the expression pattern of MMP-9 was determined in both pre- (5-month old) and post-pubertal (11–month old) bovine testes. Histological analysis revealed that spermatogonia were located near the basement membrane in both testes, while spermatozoa were not detected in the 5-month old pre-pubertal bovine testes and epididymides. Mature spermatozoa were observed in the 11-month bovine testes and epididymides, and MMP-9 expression in 11-month old bovine testes was lower than 5-month old testes, according to reverse transcription-PCR and real-time-PCR data. To determine the specific expression sites of MMP-9 in the bovine testes, immunohistochemistry was performed. Expression of MMP-9 was observed in cells near the basement membrane of seminiferous tubules in both 5- and 11-month old testes. Furthermore, MMP-9 positive cells expressed protein gene product 9.5 (PGP9.5) and deleted in azoospermia (DAZL) that are already known as bovine spermatogonial stem cells markers. In the present study, MMP-9 expression was identified in both pre- and post-pubertal bovine spermatogonia expressing PGP9.5 and DAZL, and located near the basement membrane of seminiferous tubules. Thus, MMP-9 can be used as a marker for bovine spermatogonia, and may provide useful platforms for understanding the interaction between germ cells and extracellular matrix during spermatogenesis in the seminiferous tubules.

요관에서 발생한 도립 유두종 1례

곽태일,김용우,김동선,윤덕기 大韓泌尿器科學會 1997 Korean Journal of Urology Vol.38 No.1

Megaureter-Megacystis Association 1례

곽태일,정명수,최은용,김동선,윤덕기 大韓泌尿器科學會 1999 Korean Journal of Urology Vol.40 No.1

표재성방광암의 재발과 병기진행에 영향을 미치는 조직학적 인자에 관한 연구

곽태일,윤덕기,김광일,원남희 大韓泌尿器科學會 1998 Korean Journal of Urology Vol.39 No.10

지능형 홈서비스를 위한r-Sensor프로토콜설계 및 하드웨어 구현

곽태길,이범성,정진욱,진교홍,Kwak, Tae-Kil,Lee, Bum-Sung,Jung, Jin-Wook,Jin, Kyo-Hong 한국정보통신학회 2006 한국정보통신학회논문지 Vol.10 No.11

본 논문에서는 지능형 홈서비스를 위한 무선 센서 네트워크의 신뢰성 있는 데이터 전송을 위해 r-Sensor프로토콜을 설계하였다. r-Sensor 프로토콜은 간단한 경로 설정 방법과 중계 노드의 부담을 최소화시키는 알고리즘을 이용하여 Congestion이나 패킷 손실이 발생할 확률을 최소화시켜서 데이터 전달의 신뢰성과 노드의 공평성을 향상시키는 프로토콜이다. 제안된 경로설정 알고리즘은 망 관리 패킷(NM 패킷)을 사용하여 각 노드의 Upstream, Downstream 노드를 파악한다. 한편 패킷 손실 복원 알고리즘은 Aggregated-Nack를 사용한다. 제안된 알고리즘을 적용하기 위하여 본 논문에서는 댁내의 홈 게이트웨이 및 싱크노드 역할을 하는 지능형 홈 원격검침기(IHS-AMR)와 센서 노드의 하드웨어를 설계 및 구현하였다. IHS-AMR은 원격검침기의 고유 기능을 제공하며, 그 외에 센서 네트워크, 휴대 전화망, 인터넷 등 다양한 네트워크와의 연동을 통해 댁내의 안전 서비스를 제공한다. In this paper, we design the r-Sensor protocol for reliable data transmission in the Intelligent Home Service based on the wireless sensor network environment. The r-Sensor protocol improve the reliability of data transmission and node fairness using simple routing algorithm, congestion control, and loss recovery method that minimize the load of relay node. Reposed routing algorithm find out upstream and downstream nodes using the Network Management packet. Meanwhile, loss recovery algorithm uses the Aggregated-Nack. To apply supposed algorithm, the IHS-AMR(Intelligent Home Service - Automatic Meter Reader) and sensor node are designed and implemented in hardware. The IHS-AMR provides remote metering service and also offers home safety service by internetworking with sensor network, mobile phone network and internet.

캐쥬얼 브랜드 "Nextim" 로고를 이용한 패션디자인 이미지 개발연구

곽태기 한국복식학회 2005 춘계 학술대회 Vol.2005 No.-

중국, 일본, 한국의 오리엔탈리즘패션에 나타난 토탈패션(Total Fashion)에 관한 연구

곽태기(Tai Gi Kwak),김은정(Eun Jung Kim) 한국복식학회 2002 服飾 Vol.52 No.5

As modern fashion trends show oriental motif since the transition of post-modernism, a number of great fashion designers such as Givenchy and Jean-Paul Gautier applied the concept of Orientalism to their fashion design. Total fashion is a trend in which make-up, hair-style, and accessories, together with clothing itself are considered a complete fashion as a whole, and sometimes appeals much to consumers. Given that the previous studies on Orientalism have focused only on clothing, this research aims at examining Orientalism with a total fashion approach to simultaneously study make-up, hair-style, accessories, and clothing, and showing that traditional oriental beauty is expressed by total fashion in which the past appeared again through the process of creative application. We analyzed the Orientalism total fashion from 1990 through 2001 and summarized the national differences among these countries in the following. First, China has a uniformed clothing, make-up, and hair-style as shown its traditional play, KyungKeuk and traditional costume, Chipao. Second, Japanese unique traditional costume has been passed on through its traditional costume, Kimono, and traditional play, Kabuki. Finally, in Korea, make-up, hair-style and the design of the traditional costume, Hanbok, as appeared in Myindo(means a picture of a beauty) painted in the Chosun Era are applied and reappeared without much change. It is advised to note that the Orientalism fashion to be discussed in this study is limited to China, Japan, and Korea in Asia.

혁명적 변화에 나타난 NEW FASHION 의 발생 및 특징에 관한 연구

곽태기(Tai Gi Kwak) 한국복식학회 2001 服飾 Vol.51 No.1

Particular historic events such as revolution and wars have given rise to fashion. Luxurious costume representative of the aristocratic culture since the French Revolution was changed into popular look with the collapse of the royal regime. With the restoration of the royal regime by Napoleon, rapid changes associated with the reemergence of the costume of aristocratic brought an opportunity for the revolutionary fashion of bringing about new fashion in the fashion field. Especially, the New Look presented by Christian Dior in 1947 shortly after the Second World War would be the typical style of revolutionary fashion. Accordingly, this study attempted to analyze the characteristics of new fashion regarding how new fashion occurred and developed in changes in revolutionary fashion after the Revolution and the War, in conjunction with the zeitgeist(time split) of rapid social changes. The ultimate purpose of this study was find out the significance of fashion as to how and why fashion changed in relation to the factors of changes in fashion in the history and create new future fashion by reinterpreting new aesthetic consciousness about the characteristic of new fashion found in changes in revolutionary fashion.

디지털 시대적 환경에서 디지털 의류 개발 경향의 표현특성에 관한 연구

곽태기 한국패션디자인학회 2013 한국패션디자인학회지 Vol.13 No.1

본 연구는 디지털 시대적 환경에서 전개된 디지털 의류의 개발 경향에 나타난 컴퓨팅과 인간의 상호작용의 의미를 파악하고 이를 바탕으로 의복이 디지털기능과 합쳐진 디지털 의류의 표현특성을 고찰하였다. 21세기는 디지털 테크놀로지에 의한 컨버젼스 현상이 나타나면서 디지털 문화감성의 시대적 환경으로 발달되고 있다. 이로 인해 디지털 환경변화를 폭넓게 실현시켜줄 수 있는 디지털 기능이 의류분야에서 실용적으로 활용되면서 인체와 가장 밀접한 의복과 디지털 테크놀로지의 융합으로 신개념의 디지털 의류가 개발되고 있다. 디지털 의류를 시대적 환경에 맞추어 개발 경향의 표현특성을 분석한 결과 가상현실성, 디지털 융합성, 고기능성, 상호작용성이라는 표현특성을 도출하였다. 가상현실성은 디지털 시대의 IT기술 발전으로 인터넷의 가상공간 커뮤니티 형성과 가상현실의 시뮬레이션을 구현할 수 있는 매체환경으로 더욱 현실화 되고 있다. 디지털 융합성은 유비쿼터스 환경에서 디지털과 IT기술의 융합으로 탈 장르화 된 디지털 컨버젼스 환경의 새로운 디지털 소비문화가 형성되면서 패션분야에서도 첨단기술의 테크놀로지가 결합되었다. 고기능성은 섬유분야에서 하이테크놀로지의 발전으로 의류 신소재와 디지털 기술과의 결합을 통해 스마트 섬유가 개발되었다. 상호작용성에서는 스마트 테크놀로지 구현의 유비쿼터스 디지털 환경으로 인간과 컴퓨터의 상호작용을 위한 기술개발 경향이 인간중심의 디지털감성지향으로 발전하고 있다. 디지털 의류가 의류고유의 감성적 속성을 유지하면서 시대적 개발 경향의 표현특성을 접목하여 인간 삶의 질까지 향상시키는 편리함과 안전함으로 다양한 의류산업분야에서 고기능성의 미래형 디지털 의류의 개발이 이루어지고 있다.

마치현(馬齒□)의 급성 췌장염 보호 효과

곽태신 ( Tae Sin Gwak ),김동구 ( Dong Goo Kim ),김주영 ( Ju Young Kim ),배기상 ( Gi Sang Bae ),최선복 ( Sun Bok Choi ),조일주 ( Il Joo Jo ),신준연 ( Joon Yeon Shin ),이성곤 ( Sung Kon Lee ),김명진 ( Myoung Jin Kim ),김민준 ( Min J 대한본초학회 2014 大韓本草學會誌 Vol.29 No.3

Objective : Portulaca oleracea (PO) has been used as an important traditional medicine for inflammatory and bacterial diseases in East Asia. However, the protective effects of PO on acute pancreatitis (AP) is not well-known. Therefore, this study was performed to identify the anti-inflammatory and prophylactic effects of PO on cerulein-induced AP. Methods : AP was induced in mice via intraperitoneal injection of supramaximal concentrations of the stable cholecystokinin analogue cerulein (50 ㎍/㎏) given every hour for 6 times. Water extracts of PO (100, 300, or 500 ㎎/㎏) was administrated intra-peritoneally 1 h prior to the first injection of cerulein. The mice were killed at 6 h after the final cerulein injection. Pancreas and lung were rapidly removed for morphologic and histochemical examination, myeloperoxidase (MPO) assay. Blood samples were taken to determine serum amylase and lipase activities. Results : Administration of PO significantly inhibited pancreatic weight/body weight ratio, pancreas andlung histological injury. And MPO activity which indicates neutrophil infiltration was inhibited by PO extracts on cerulein-induced pancreatitis. In addition, PO administration inhibited digestive enzymes such as serum amylase and lipase activity on cerulein-induced pancreatitis. Conclusion : Our results could suggest that pre-treatment of PO reduces the severity of cerulein-induced AP, thereby, PO could be used as a protective agent against AP. Also, this study could give a clinical basis that PO could be a drug or agent to prevent AP.