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정진우,김진우,조경연,Chung, Jin-Woo,Kim, Jin-Woo,Cho, Kyung-Yun 한국미생물학회 2010 미생물학회지 Vol.46 No.4
점액세균의 16S rDNA에 특이적으로 부착하는 프라이머를 사용한 중합효소연쇄반응(PCR)을 통해 아산시와 우포늪에서 채취한 다섯 토양시료 내 점액세균의 다양성을 조사하였다. 점액세균의 16S rDNA을 갖는 76개 PCR 조각의 서열분석 결과, 표준균주와 95% 미만의 상동성을 보이는 5개의 신속 추정 점액세균이 관찰되어 국내 토양에 아직까지 분리되지 않은 많은 새로운 점액세균들이 존재함을 보여주었다. Diversity of myxobacteria in five soil samples from Asansi and Uponeup in Korea was explored by means of polymerase chain reaction (PCR) using primers that specifically bind 16S rDNA of myxobacteria. DNA sequence analysis of 76 PCR fragments containing myxobacterial 16S rDNA revealed five putative novel myxobacterial genera whose 16S rDNA sequences shared <95% sequence identity with those of the type strains. This finding indicates the presence of many uncultured and unidentified myxobacterial species in Korean soil.
Mouse Air Pouch Model에서 침전극 저주파치료로 유도된 소염 작용에 관한 연구
정진우,황현숙,임종수,Chung, Jin-Woo,Hwang, Hyun-Sook,Lim, Jong-Soo 대한물리치료과학회 2002 대한물리치료과학회지 Vol.9 No.2
In oriental medicine, manual-acupuncture and electroacupuncture (EA) have been widely utilized to cure several inflammatory diseases such as arthritis. We designed this experiment to find neurochemical mechanism related to electroacupuncture induced anti-inflammatory effect on mouse air pouch model. EA with both low frequency (1 Hz) and high frequency (120 Hz) was treated after induction of inflammation in air pouch using injection of zymosan. To verify the role of opioid system in electroacupuncture-induced anti-inflammatory effect, naloxone (10 mg/kg) was pretreated. In addition, idazoxan (5 mg/kg) was pre-treated to evaluate the possible effect of endogenous adrenergic system in autonomic system on EA induced anti-inflammatory effect. As results of this study, naloxone pretreatment did not change the anti-inflammatory effect evoked by high frequency EA, while low frequency EA(1 Hz) induced anti-inflammatory effect was dramatically suppressed by naloxone pretreatment. These data indicated that endogenous opioid system might be extensively involve in anti-inflammatory effect evoked by not high frequency, but low frequency EA. However, idazoxan pretreatment did not produce any modulatory effect on both low and high frequency EA induced anti-inflammatory effect, suggesting that EA induced anti-inflammatory effect was not mediated by endogenous adrenergic system. In conclusion, these data strongly suggested that EA induced anti-inflammatory effect is mediated by endogenous opioid system, not endogenous adrenergic system.
정진우,김순자,임종수,Chung, Jin-Woo,Kim, Soon-Ja,Lim, Jong-Soo 대한물리치료과학회 2002 대한물리치료과학회지 Vol.9 No.1
Functional Electrical Stimulation is the clinical application of a small electric current to the intact nerves of the body, in order to trigger a muscle contraction. This contraction is then incorporated into a functional activity, for example walling. A clear distinction needs to be made between therapeutic stimulation and functional stimulation. The former being of an exercise orientation, where one would relax while the stimulation works on its own. Functional electrical stimulation on the other hand, incorporates this elicited muscle movement into an everyday activity, like standing, walking, reaching out etc. But recently, New method used to FES which updated electrode insult in muscle and small nerve branch. A lot of new research build up many countries such as England, USA, Japan, Spain, Canada. So I had been write this paper for introduce new FES method, and I hope to more enhanced motivation of therapist for the functional electric stimulation.
정진우,Chung, Jin-Woo The Korean Academy of Orofacial Pain and Oral Medi 1999 Journal of Oral Medicine and Pain Vol.24 No.3
구강안면동통 환자의 치료법으로 널리 쓰이는 전기요법은 연조직과 신경계 구조물에 대한 치료 시 중요한 역할을 담당하고 있다. 저자는 현재 구강안면동통의 치료법으로 널리 쓰이고 있는 전기요법들 중 경피성 신경자극(Transcutaneous electric nerve stimulation)과 전기침자극요법(Electroacupuncture stimulation therapy)이 각각의 신경섬유에 미치는 효과를 평가하고자 정상 성인 남녀 29명에게 경피성 신경자극 및 전기침자극을 시행하고 시행 전 및 시행 후 삼차신경 영역의 3가지 종류($A{\beta}$, $A{\delta}$, C fiber)의 신경섬유의 전류인지역치(CPT) 변화를 측정하여 그 차이점을 분석하였으며 이를 대조군과 비교하였다. 경피성 신경자극 및 전기침자극 모두에서 대조군에 비해 삼차신경 영역의 모든 신경섬유에 걸쳐 고른 전류인지역치의 증가를 나타내었으며, 경피성 신경자극과 전기침자극 후의 전류인지역치 변화량은 서로 유의할만한 차이를 나타내지 않았다. 이는 경피성 신경자극 과 전기침자극 모두 3가지 종류($A{\beta}$, $A{\delta}$, C fiber)의 감각신경섬유의 전류인지역치에 영향을 미치며, 구강안면동통의 감소에 효과적으로 사용될 수 있으리라 생각된다.
정진우 ( Jin Woo Chung ) 한국중소기업학회 2002 기업가정신과 벤처연구 Vol.5 No.3
This study empirically examines the influencing factors of internationalization activities and the impacts of internationalization activities on firm`s performance. Based on the sample of 2,336 ventures in manufacturing sector, proposed hypotheses are tested using non-parametric analysis. Major findings of this study are as follows. First, the industry`s technologic level and venture`s capital structure, asset and cost structure affect the patterns of internalization activities. Second, the extent of internationalization activity is related to firm`s performance.