Stress가 免疫機能에 미치는 影響에 關한 文獻的 考察

柳敞烈,宋正模 又石大學校 1993 論文集 Vol.15 No.-

Poster Session : PS 0850 ; Upper GI Tract : Gastric Sarcoidosis Accompanied with Non-Specifi c Lymphadenopathy

( Sohyeon Hong ),( Min Sun Ryu ),( Kwang Jin Woo ),( Jeong Mi Lee ),( Heywon Yoon ),( Chunghyun Tae ),( Chang Mo Moon ),( Seongeun Kim ),( Hyekyung Jung ),( Sungae Jung ),( Kinam Shim ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1

Gastric sarcoidosis is a rare disease accounting for 0.1-0.9 % of all sarcoidosis. We report our experience with a patient with lung and stomach sarcoidosis accompanied by an enlarged abdominal lymph nodes. A sixty-year-old female patient visited our hospital with an abnormal chest x-ray. The patient has no smoking history and no noticeable medical history. There were no fever, cough, dyspnea, nor weight changes. Physical examination showed clear breathing sound and no palpable lymph node. The chest x-ray showed reticular opacity in the right lower lung zone and chest computed tomography indicated that it was an interstitial thickening in the right middle and right lower lobes. A soft tissue density nodule, 9 mm in diameter, neighboring inferior pulmonary vein was also found. Furthermore, multiple enlarged lymph nodes were observed in the left gastric vessel area, which could be suspected as metastatic lymphadenopathy of intra-abdominal malignancy. Abdominal computed tomography showed that the enlarged lymph node spanned over left gastric area, splenic artery area, greater omentum, and gastro-colic trunk, with no mass or thickening in the walls of the stomach. Esophagogastroduodenoscopy revealed a satellite-shaped shallow whitish discoloration accompanied by mucosal irregularity in the anterior wall side of lower body and mucosal depression in the greater curvature side of lower body. Biopsies on both lesions showed chronic active gastritis with foreign-body type granuloma and Sydney grade 1 Helicobacter pylori. Laparoscopic biopsy on intra-abdominal lymph node was conducted. It was negative in mycobacterium tuberculosis and non-tuberculous mycobacterium, confi rming multiple well-formed non-caseating granulomas, satisfying our diagnosis as sarcoidosis. The patient was prescribes with methylprednisolone and follow-up CT 6 months after treatment indicated signifi cant improvement.

A Study of mechanical properties of oxide layer removed Co-Cr-Mo abutments

Ryu, Jae-ho,Huh, Jung-Bo,Ro, Jung-Hoon,Yun, Mi-Jung,Jeong, Chang-Mo The Korean Dental Association 2015 대한치과의사협회지 Vol.53 No.11

PURPOSE: The aim of this study was to evaluate the influence of the oxide layer removal process in the Co-Cr-Mo (CCM) abutment after casting procedure on the prosthesis settlement and screw stability. MATERIALS AND METHODS: CCM abutments of four different interface conditions (CCM-M; machined, CCM-O; oxide layer formed, CCM-B; blasted, CCM-P; polished after blasted) and gold abutment (Gold-C; Cast with type III Gold alloy) were used. The initial settling values of abutments were evaluated according to the difference of implant-abutment length when the tightening torques were applied at 5 Ncm and 30 Ncm, and the settling values of abutments caused by loading were evaluated according to the difference of implant-abutment length before and after loading with 250 N, 100000 cycle. The loss ratios of removal torque for abutment screws were evaluated according to the difference in value of removal torques under 30 Ncm tightening torque applied before and after cyclic loading. RESULTS: The CCM-P and CCM-B group showed a higher initial settling value compared with the Gold-C group (P<.05), while the Gold-C group showed the highest settling values caused by loading (P<.05) and no significant differences were observed for between CCM groups (P>.05). The loss ratio of removal torque values for the CCM-B, CCM-P groups did not differ significantly from that of the Gold-C group (P>.05). CONCLUSION: Even though the oxide layer was removed by different methods, CCM abutment with internal conical connection structure showed lower abutment settling and similar screw loosening after cyclic loading compared with gold abutment.

A Low Frequency Coherent Structure Driven by Turbulence in a Hanbit Mirror Plasma

Ryu, Chang-Mo,Rhee, Tongnyeol Informa UK (TaylorFrancis) 2007 Fusion science and technology Vol.51 No.2

Generation of Large Scale Magnetic Fields by Cross Field Diffusion

Ryu, Chang-Mo 한국우주과학회 1987 Journal of Astronomy and Space Sciences Vol.4 No.2

A Study of mechanical properties of oxide layer removed Co-Cr-Mo abutments

Jae-ho Ryu,Jung-Bo Huh,Jung-Hoon Ro,Mi-Jung Yun,Chang-Mo Jeong 대한치과의사협회 2015 대한치과의사협회지 Vol.53 No.11

PURPOSE: The aim of this study was to evaluate the influence of the oxide layer removal process in the Co-Cr-Mo (CCM) abutment after casting procedure on the prosthesis settlement and screw stability. MATERIALS AND METHODS: CCM abutments of four different interface conditions (CCM-M; machined, CCM-O; oxide layer formed, CCM-B; blasted, CCM-P; polished after blasted) and gold abutment (Gold-C; Cast with type III Gold alloy) were used. The initial settling values of abutments were evaluated according to the difference of implant-abutment length when the tightening torques were applied at 5 Ncm and 30 Ncm, and the settling values of abutments caused by loading were evaluated according to the difference of implantabutment length before and after loading with 250 N, 100000 cycle. The loss ratios of removal torque for abutment screws were evaluated according to the difference in value of removal torques under 30 Ncm tightening torque applied before and after cyclic loading. RESULTS: The CCM-P and CCM-B group showed a higher initial settling value compared with the Gold-C group (P<.05), while the Gold-C group showed the highest settling values caused by loading (P<.05) and no significant differences were observed for between CCM groups (P>.05). The loss ratio of removal torque values for the CCM-B, CCM-P groups did not differ significantly from that of the Gold-C group (P>.05). CONCLUSION: Even though the oxide layer was removed by different methods, CCM abutment with internal conical connection structure showed lower abutment settling and similar screw loosening after cyclic loading compared with gold abutment.

초등 교과교육학의 성격과 내용구조 연구

유한구(Han Ku Ryu),장성모(Sung Mo Chang),송광용(Kwang Yong Song),조주연(Joo Yun Cho),이학주(Hak Ju Lee) 한국초등교육학회 1997 초등교육연구 Vol.11 No.1

이 연구는 교과교육과 교과교육학의관계, 그리고 교과교육학과 교육학의 관계등을 분석하고, 그 결과를 토대로 하여 초등학교 교과교육과 교육대학 교과교육학 교육의 실제를 정확히 이해하고 그 발전 방향을 탐색하기 위한 것이다. 일반적으로, 교과교육학은 교육학에서 제시하고 있는 교육과정의 구성및 교육방법상의 일반 원리를 교과교육이라는 특수한 사태에 적용하는 과정에 관심을 두는 이론으로 간주되고 있다. 이 관점에 의하면, 교과교육학은 교육학의 일반적 원리에 따라 교과교육이라는 특수한 맥락에 처방을 내리기 위한 것으로 파악된다. 이 관점을 교과와 그것을 가르치는 교사의 삶을 사실상 별개의 것으로 분리하는 것이며, 그와 동일한 이유에서 교과교육학과 교과교육학자의 삶 또한 별개의 것임을 전제하는 것이다. 그러나 교과교육과 교과교육학, 그리고 교과교육학과 교육학의 관계는 이론에서 실제로 나아가는 앞의 방향과는 정반대 방향에서도 이해될 수 있다. 이 관점에 의하면, 교과교육학은 교과교육 실제에 처방을 내리기 위한 것이 아니라 그 실제를 기술하고 정당화하기 위한 것으로 파악된다. 교과교육과 교과교육학의 관련이 이렇게 파악될 때, 교과 교육학은 교사나 교과교육학자에게 자신이 지금 하는 일이 자신의 삶과 결코 무관한 것이 아니라는 믿음을 심어 주게 되며, 나아가 그들 자신이 참여하고 있는 초등학교나 교육대학의 교육실제를 기술하거나 정당화하려고 할 때 반드시 필요한 개념적 도구를 제공해 줄 수 있게 된다. 바로 여기에 교과교육학에 관한 종래의 접근과는 구분되는 새로운 접근방식이 요구되는 이유가 있다. The purpose of this study is threefold: The first is to analyse the relations between subject education and subject pedagogy, and between subject pedagogy and general pedagogy. The second is, based on the analysis result, to have the precise understanding of teaching various subjects in the elementary school, and of teaching subject pedagogy in the university of education. The third is to search for the desirable direction of developing the elementary education and the teacher education. Subject pedagogy is usually defined as a theory which is interested in the process of applying pedagogical principles regarding curriculum organization and teaching methods to specific teaching situations, that is, subject education situations. However, this definition has a limitation, because it assumes that a subject and the teacher's life who teaches the subject are separated from each other, and that subject pedagogy and the scholar who studies subject pedagogy are also separated. The relationship between subject teaching and subject pedagogy, and between subject pedagogy and general pedagogy can be understood with quite different viewpoint. This new viewpoint, which is the major discussion matter of this study, assumes that subject pedagogy is never separated from the life of subject teacher/subject pedagogist. This viewpoint will reveal the theoretical features of subject pedagogy better, and give us new meaning on the life of teachers/subject pedagogists. The subject pedagogy in the correct sense should provide teachers/pedagogists with the conceptual instrument based on the new viewpoint. This conceptual instrument will make teachers/pedagogists be able to describe, explain, and validate their own educational practice-such as the content structure of each subject-in the elementary school or the university of education.

운동강도와 지속시간에 따른 트레드밀 운동이 비만 쥐의 심장근 내 항산화에 미치는 영향

김명희,김용억,윤창륙,유지원,안종모,Kim, Myung-Hee,Kim, Young-Eok,Yoon, Chang-Lyuk,Ryu, Ji-Won,Ahn, Jong-Mo 대한안면통증구강내과학회 2013 Journal of Oral Medicine and Pain Vol.38 No.1

트레드밀 운동이 비만 쥐의 심장근 내 항산화에 어떠한 영향을 주는지 알아보고자 흰쥐에 6주 동안 고지방 식이로 비만을 유발시킨 뒤 운동강도와 적용시간을 달리하여 트레드밀을 3주 동안 적용하였으며, 체중변화, 혈중지질성분, 조직학적 변화, 심장근 내 항산화 효소와 MCP-1(monocyte chemoattractant protein-1) 등의 변화를 연구하였다. 4주령 Sprague Dawley계 수컷 흰쥐 32마리를 사용하여 각각 일반사료를 섭취한 정상군 (normal), 비만 대조군 (control), 비만 쥐에게 고강도 분할운동을 적용한 실험군 I(Experimental I), 비만 쥐에게 중강도 지구력 운동을 적용한 실험군 II (Experimental II)로 나누었다. 실험 결과 첫째, 체중변화는 고강도 분할 운동을 적용한 실험군 I과 중강도 지구력 운동을 적용한 실험군 II는 대조군에 비해 유의한 감소가 있었다 (p<0.001). 특히, 운동을 적용한 1주에서 3주까지 유의한 차이가 있었다. 둘째, 혈중지질성분 수치는 고강도 분할 운동을 적용한 실험군 I과 중강도 지구력 운동을 적용한 실험군 II는 대조군에 비해 총콜레스테롤, 중성지방, 저밀도 지단백질의 유의한 감소, 고밀도 지단백질에서는 유의한 증가가 있었다 (p<0.001). 셋째, 심장근의 조직학적 소견은 심장근에서 아교질 형성과 평활근 섬유의 정렬 상태와 밀집도, 심장근 세포크기가 중강도 지구력 운동 적용한 실험군 II에서 정상군과 비슷한 형태인 근육들이 잘 밀집해 있는 것을 볼 수 있었다. 또한, 섬유아세포, 염증세포들의 침윤 등이 고지방 식이 유발 쥐인 대조군과 고강도 분할 운동을 적용한 실험군 I에서 가장 심하였으며, 중강도 지구력 운동을 적용한 실험군 II는 대조군에 비해 섬유아세포, 염증세포들의 침윤 등이 현저히 감소하였다. 넷째, 심장근의 항산화 효소 SOD(superoxide dismutase), CAT(catalase), GPx(glutathione peroxidase) 수치는 중강도 지구력 운동을 적용한 실험군 II와 고강도 분할 운동을 적용한 실험군 I에서 모두 유의한 증가가 있었다 (p<0.001). 다섯째, 심장근의 항산화 단백질 MCP-1 발현 수치는 고강도 분할 운동을 적용한 실험군 I과 중강도 지구력 운동을 적용한 실험군 II 모두에서 감소가 있었으며 (p<0.01), 특히, 중강도 지구력 운동을 적용한 실험군 II에서는 유의한 감소가 있었다 (p<0.001). 따라서, 중강도 지구력 운동은 고지방 식이로 유발된 비만 쥐의 심장근 내 항산화에 영향을 주어 비만 개선과 산화적 스트레스에 의한 심장근육 손상 감소 등에 효과적인 것으로 나타났다. The aims of this study was to observed an effect of antioxidative in cardiac muscle of high fat diet induced obesity rat by treadmill exercise with intensity and time. Thirty-two Sprauge-Dawley rats which were divided into four group. Normal, Control(high fat diet induced obesity rat), Experimental I(high intensity intermittent exercise in high fat diet induced obesity rat), Experimental II(moderate intensity endurance exercise in high fat diet induced obesity rat). The results of this study were as follows: 1. In change of body weight, the outcome of each group significantly difference compared with control. Also, 1 to 3 weeks significantly different compared with pre valu experimental I and II(p<0.001). 2. In change of lipid profile, the outcome of each group significantly difference compared with control(p<0.001). Difference between experimental I and II is not significantly. 3. In change of antioxidative enzymes(SOD, CAT, GPx) in myocardium, there are significant difference between control and experimental II, and also between control and experimental I(p<0.001). 4. In change of antioxidative protein MCR-1, the outcome of each group significantly difference compared with control(p<0.01). Experimental II was most significantly difference than the other group(p<0.001). The above results suggest that treadmill exercise effectively reduced in fat. It would be considered that moderate intensity endurance exercise has an effects on improved antioxidative enzyme in cardiac muscle of high fat diet induced obesity rat.

달생탕이 랫드의 모체와 태자에 미치는 영향에 대한 연구

박해모,김창석,이선동,이장우,유재홍,김판기,Park, Hae-Mo,Kim, Chang-Seok,Lee, Sun-Dong,Lee, Jang-Woo,Ryu, Jae-Hong,Kim, Pan-Gyi 한국환경보건학회 2006 한국환경보건학회지 Vol.32 No.4

The experiments was undertaken to evaluate the effects of herbal medicine, Dalsaengtang, in pregnant rats and fetuses. Female Sprague-Dawley rats were orally administered with the Dalsaengtang at dose of 5 mg/kg/day for 20 days. Pregnant rats were sacrificed at 20th day of gestation, and observed internal and reproductive organs. Approximately live fetuses in the 20th day of gestation were randomly selected and fixed in 95% ethanol. To observe skeletal malformations, fetuses were stained with alcian blue and alizarin red S. Maternal body weight of dalsaengtang treated group has a tendency to increase compared to that of control group. The relative liver and kidney weights of dalsaengtang treated group were also increased to that of control group. There were no significant changes between two groups in blood chemistry and hematological values. There were no significant changes in number of corpus luteum, implantation, live fetuses and implantation rate, delivery rate, late resorption rate and sex ratio. But Dalsaengtang administered group showed lower early resorption rate than the control group. From the sex ratio, number of females, bigger than number of males in the control group, and more males than females in Dalsaengtang administered group. Neonatal body weight and number of fetus of Dalsaengtang group were increased to that of control group. The fetuses of dams treated with Dalsaengtang didn't showed external malformation. Vertebral and sternal variations were observed in Dalsaengtang group but, compared to the control, those variations were insignificant. The number of ribs, cervical, thoracic, and lumber were normal. The number of sacral and caudal vertebrae were increased. Fetuses showed significant difference in the number of caudal vertebra (P<0.01). From these results, it can be concluded that Dalsaengtang showed no toxicity effects on maternal body weight, early resorption rate, and number of live fetuses. There were no significant changes in organ weight, hematological data, reproductive organs. Although skeletal variations were showed in vertebrate and sternum, Dalsaengtang did not shown significant changes in bone malformation.

Clinical Predictors of Permanent Neuropathy in Patients with Peripheral Painful Traumatic Trigeminal Neuropathy

Ryu, Ji-Won,Ahn, Jong-Mo,Yoon, Chang-Lyuk Korean Academy of Orofacial Pain and Oral Medicine 2016 Journal of Oral Medicine and Pain Vol.41 No.3

Purpose: The aims of this study were to evaluate the clinical characteristics of patients with altered sensation and/or pain, and to determine outcome predictors affecting persistent neuropathy. Methods: Patients who complained an altered sensation or pain following trigeminal nerve trauma were involved in this study. To determine outcome predictors affecting persistent neuropathy, the patients were divided into two groups; transient vs. persistent, and the clinical phenotypes are compared between groups. Data were analyzed with t-tests, chi-square, and multiple regression analyses with 95% confidence interval and p<0.05 significance level. Results: A total of 111 patients were included: 23 with transient and 88 persistent groups. The panoramic result and pin-prick test score were statistically different between the groups. Radiating symptoms after blunt and pinprick stimuli were also significantly different between groups. The results revealed that the presence of a neurologic lesion in the panoramic view result, reduced sensation in the pinprick test, and radiation in the pinprick test could affect the persistent group. Conclusions: The presence of a neurologic lesion in panoramic view result and reduced sensation and radiating symptoms in the pin prick test would be defining features of one of the main clinical features of persistent neuropathy. These features could serve as outcome predictors diagnosing the permanent nerve injury in trigeminal nerve.