Divergent expression patterns of IL-4 and IL-13 define unique functions in allergic immunity

정진웅,민정기 생화학분자생물학회 2012 생화학분자생물학회 소식 Vol.32 No.2

일본의 지역식품 인증제도 및 대만의 우량농산물 표시제도의 실태조사

정진웅,김종영,Jeong, Jin-Ung,Kim, Jong-Yeong 한국식품연구원 1991 食品技術 Vol.4 No.4

한국 ‘신정치(New Politics)’ 정당의 한계: 녹색당은 왜 성장하지 못하는가?

정진웅 연세대학교 동서문제연구원 2019 동서연구 Vol.31 No.2

This study examines why the Korean Green Party has been not successful, despite the salience of environmental issues in the Korea society. Unlike the Western European Greens, the Korean Green Party remains a minor party without any parliamentary seats. About the puzzle, the extant pieces of literature focus on some hindering variables such as the electoral system, the first-past-the-post. This study, however, claims that the influence of electoral system variables on the Green Party has been overemphasized. And the paper provides an alternative explanation by illuminating on the diminishing policy differentiation and the limited candidate pool. First, the Green Party has been alienated from media and public attention as the existing parties have also proposed the de-nuclearization policy. Second, the Green Party has failed to foster candidates and activists who are attractive to the public. 녹색 이슈가 우리 사회의 쟁점이 되고 있다. 그러나 서유럽과 달리, 한국의 녹색당은여전히 원외 군소정당에 머물러 있다. 이 연구는 한국 녹색당이 왜 성장하지 못하는지그 요인을 규명하는 데 목적이 있다. 기존 연구가 녹색당을 제약하는 요인으로 선거제도를 강조했던 것과 달리, 이 논문은 해당 변수의 영향력이 과대 평가되었다고 주장한다. 또 기존 정당이 탈원전 정책을 추진하면서 녹색당의 차별성이 감소하고 소외되고있는 것이 큰 문제라고 지적한다. 인적 자원 수준 역시 제약 요인 중 하나임을 보인다. 또 이런 요인들이 복합적으로 작용하고 있음을 확인하였다. 녹색당이 성공하기 위해서는 장기 로드맵을 가지고 녹색 이슈가 쟁점이 되는 지역에서 적극적인 연대 활동을통해 아래로부터 지지 기반을 만들어내고, 인물 육성에도 나설 것을 제안한다.

Leukotriene B4 pathway regulates the fate of the hematopoietic stem cells

정진웅,김근영,문영철,안지영,성주명,김재홍 생화학분자생물학회 2005 Experimental and molecular medicine Vol.37 No.1

Leukotriene B4 (LTB4), derived from arachidonic acid, is a potent chemotactic agent and activat-ing factor for hematopoietic cells. In adition to host defense in vivo, several eicosanoids have been reported to be involved in stem cel dif-ferentiation or proliferation. In this study, we investigated the effect of LTB4blood CD34+ hematopoietic stem cells (HSCs). LTB4 was shown to induce proliferation of HSC and exert anti-apoptotic effect on the stem cells. Blockade of interaction betwen LTB4 and its receptor enhanced self-renewal of the stem cels. Efect of LTB4 on diferentiation of CD34+ HSCs were confirmed by clonogenic asays, and in-duction of the expresion of BLT2 (the low- affinity LTB4 receptor), during the ex vivo expan-sion was confirmed by reverse transcription- 4-BLT2 inter-action is involved in the cytokine-induced dif-ferentiation and ex vivo expansion of hemato-poietic stem cells.

냉동식품의 이론과 관리<제2회>

정진웅 한국식품산업협회 1989 좋은식품 Vol.101 No.-

승홍 및 사염화탄소가 생쥐의 장간막 비만세포에 미치는 영향

정진웅,오영희,김강석 中央醫學社 1972 中央醫學 Vol.23 No.3

This experiment was performed in an attempt to study the effects of mercuric chloride and carbon tetrachloride, which are poisonous to the kidney and liver respectively, on the mast cells in the mesenteries of mice. Healthy adult male mice weighing about 20g were divided into three groups; normal, mercuric chloride injected, and carbon tetrachloride injected. Animals which were injected intravenously with a single does of 15mg 'of mercuric chloride per kg body weight were sacrificed on the 12th. 18th, 24th, 30th, and 48th hour after the injection , and the ones which were subcutaneously injected with a single does of 4.0cc of carbon tetrachloride per kg body weight were killed on the 1st, 2nd, 3rd, 5th, and 7th day after the injection. Mesenteries were made in toto preparation, fixed in 10% neutral formalin solution, and stained with Pugh's solution. The average numbers of mast cells were counted in 50 fields under 160 magnification, and morphological changes of the cells, ,granularity and stain reaction of the specific granules were also observed. The results were as follows: Injection of mercuric chloride or carbon tetrachloride did not show significant changes in the number of mast cells, but caused irregularities of form, distinct degranulation, decrease of stain reaction or insatiability in many cells. It is presumed that this phenomenon was caused by inhibitory actions of these poisons to the intracellular enzymes in the mast cell.

SSFI Network 식품규격 연수시찰

정진웅,Jeong, Jin-Ung 한국식품연구원 1990 食品技術 Vol.3 No.4

朝鮮後期 校書館印書體字本 文集의 刊行에 관한 硏究

정진웅 한국서지학회 2007 서지학연구 Vol.36 No.-

This study analyzes the types of anthologies published in Gyoseogwan Inseocheja by publisher and their physical characteristics by period. It also investigates the relationship between the publication of such anthologies with political parties. Especially, this study focuses on the publication of anthologies by local authority leaders and their physical features by period. It is assumed that when local authority leaders were in charge of publishing anthologies, they sent money Gyoseogwan in order to print them in Gyoseogwan Inseocheja, and put their local government offices as a publishing office. And the physical characteristics of those anthologies can be grouped into four according to period, which means that Gyoseogwan Inseocheja were cast several times.This research is limited in that only the anthologies, but not all publications published in Gyoseogwan Inseocheja were examined; however, it is still expected to contribute to the better understanding of Gyoseogwan Inseocheja. 이 연구는 교서관인서체자본 문집을 대상으로 간행주체에 따라 어떠한 문집이 간행되었으며, 간행된 문집은 시기별로 어떠한 형태적 특징을 가지고 있는가를 분석하였고, 아울러 교서관인서체자본 문집이 당파와 어떠한 관계를 가지면서 간행되었는지를 살펴보았다. 특히 지방수령에 의한 문집 간행과 시기별 형태적 특징에 주목하였는데, 지방수령이 문집의 간행을 주도한 경우는 인쇄자금을 활자가 보관된 교서관에 보내 인쇄하도록 하고, 그가 봉직한 지방은 발행소 역할을 하였던 것으로 보인다. 또한 시기별 형태적 특징은 크게 네 시기로 구분되었다. 이것은 교서관인서체자가 여러 차례 주조되었음을 의미한다. 본고는 교서관인서체자본 전체를 대상으로 하지 않고, 문집만을 대상으로 하였기 때문에 제한적이지만, 교서관인서체자를 연구하는데 보탬이 되고자 하였다.

고양이 선조체의 신경연접기구에 대한 형태학적 관찰

정진웅,최월봉,권흥식,Chung Jin-Woong,Choi Wol-Bong,Kwun Hung-Sik 한국현미경학회 1978 Applied microscopy Vol.8 No.1

An attempt has been made to discriminate the synapses in the striatum consisting caudate nucleus, putamen and fundus striati of the cat with emphasis on the characteristic structures of axon terminals and postsynaptic profiles. The differentiation is based on the size and shape of vesicle in the bouton terminal, and the symmetrical or asymmetrical thickening the pre- and postsynaptic membrane. Four types of synapses could be differentiated: Type I: the bontons with asymmetrical,synaptic thickenings contain round 45 nm diameter vesicles and contact cell soma, dendritic shafts and dendritic spines (74%). Type II : the boutons contain round 45nm diameter vesicles and are associated with symmetrical membrane thickenings. These synapses are formed on the soma and dendritic shafts (6%). Type III: the boutons with symmetrical membrane thickenings contain 50-60 nm diameter pleomorphic vesicles, and contact soma and dendritic shafts (18%). Type IV: the terminals contain flattened vesicles ($25{\times}45 nm$) and are associated with symmetrical membrane thickenings. These synapses are found in contact with soma and dendritic shafts. Additionally, the bouton en passant, which is expanded from myelinated or unmyelinated axons containing round vesicles (45nm diameter) contacts the dendritic shaft or dendritic spine with asymmetrical membrane thickenings. Two unusual types of synapses, axo-axonic and dendro-dendritic, are found occasionally.

집토끼 결장 각 부위의 구조에 대한 광학 및 주사전자현미경적 관찰

정진웅,천명훈,오수자,권흥식,Chung, J.W.,Chun, M.H.,Oh, S.J.,Kwun, H.S. 한국현미경학회 1984 Applied microscopy Vol.14 No.2

Structural differences in various divisions of the rabbit colon were investigated using light and scanning electron microscopy. For light microscopic study, various Portions of the colon from seven rabbits (2.5 kg body weight) were fixed in 10% neutral buffered formalin, and paraffin sections were stained with hematoxylin-eosin. Tissues for scanning electron microscopy were fixed in 1% glutaraldehyde-1.5% paraformaldehyde and postfixed in 1% $OsO_4$, dehydrated to 100% alcohol, transfered to isoamilacetate and dried by the critical point method. Subsequently, specimens were coated with gold and viewed with a JSM-35C scanning electron microscope. The colon displays a morphological diversity along its proximo-distal axis. Five regions can be discerned based on the macroscopic and microscopic characteristics. 1) The first segment immediately distal to the cecocolical junction possessing three teniae is approximately 5 cm ($4{\sim}6cm$) in length, and displays irregular folds of the mucosa oriented transversely similar to those of the cecum. 2) The second segment possessing three teniae is about 7 cm ($5{\sim}8cm$) in length, and is characterized by the papilla-like protrusions on the mucosal surface. 3) The third segment, possessing a single tenia is about 16 cm ($12{\sim}20cm$) in length, and also displays the papilla-like protrusions similar to the aforegoing segment. 4) Fusus coli, approximately 4 cm ($3{\sim}5cm$) in length, is free of teniae and exhibits longitudinal folds on the mucosal surface. These four portions together constitute the proximal colon. 5) The distal colon reaches a length of about 58 cm ($53{\sim}55cm$) and shows a pattern of surface irregularities with minor ridges on the mucosal folds.