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김형균,이언정,권용택,황광호,주홍현,송봉근,Kim, Hyeong-Kyun,Lee, Eun-Jeong,Kweon, Yong-Taek,Hwang, Kwang-Ho,Joo, Hong-Hyun,Song, Bong-Keun 대한한방내과학회 2000 大韓韓方內科學會誌 Vol.21 No.1
The unripe fruit of Poncirus trifoliata Raf has been used for the treatment of allergic disease. Recently it was reported that the fruit inhibits passive cutaneous anaphylaxis and histamine release at mast cell. Type I immediate hypersensitivity of anaphylactic type is caused by released mediate chemical at mast cell. Histamine is also known as one of potent mediate chemical. Also release of mediate chemical is affected by specific stimulation of IgE combined with mast cell. Activation of mast cell is known to be stimulated by compound 48/80 and inhibited by increase of cAMP. In this experiment, the effect of water extract of Poncirus trifoliata Raf fruit (PT) on a histamine release, cAMP concentration and IgE production was measured. Compound 48/80 was administrated to the mouse peritoneal cell which was pretreated with PT. PT dosedependently inhibited histamine release at peritoneal mast cell and the serum level of histamine induced by compound 48/80. PT also instantly increased cAMP level of peritoneal mast cell right after it was added and the level gradually decreased. Production of IgE induced by antigens at mouse peritoneal cell was inhibited by PT. The IgE synthesis is induced by IL-4 and it is known that lipopolysaccharide(LPS) plus IL-4 cause an increase in IgE secretion by murine B cells. The effects of PT inhibited the production of IgE activated by LPS plus IL-4 at human U266B1 cells. These results indicate that PT has antiallergic activity by Inhibition of IgE production from B cells and histamine release by increase of cAMP.
의이인(薏苡仁)의 투여(投與)가 마우스의 세포성(細胞性) 및 체액성(體液性) 면역기능(免疫機能)에 미치는 영향(影響)
우영은,김형균,송봉근,이언정,Woo, Young-Eun,Kim, Hyeong-Kyun,Song, Bong-Keun,Lee, Eon-Jeong 한국한의학연구원 1996 한국 한의학연구소 논문집 Vol.2 No.1
Coicis Semen is one of the oriental medicine that has been used for the treatment of the diseases such as pulmonary abscess, periappendicular abscess and wart since ancient times. However, the mechanism of the action of the drug is not well studied. This study was done to investigate the effects of Coicis Semen on the host defence mechanism. Effects of Coicis Semen on the immune responses were analysed by measuring the contact hypersensitivity, hemagglutinin, hemolysin and rosette formation, cytotoxicity, and reactive oxygen intermidiates production. As the results, water extract of Coicis Semen administration enhanced the antibodies (hemagglutinin and hemolysin) formation and the appearance of rosette forming cells of the spleen. Also Coicis Semen increased the allogeneic immune response in the mouse, showed cytotoxic activity against human leukemia cell line(K562) and decreased the contact hypersensitivity against dinitroflurobenzene. Also administration of Coicis Senlen slightly increased NK cell activity and enhanced the production of such reactive oxygen intermediates as superoxide and hydrogen peroxide from the macrophages in vivo and in vitro. The above results demonstrate that Coicis Semen has enhancing effects on cellular and humoral immune responses against disease.
Correlation between Acupuncture Stimulation and Cortical Activation - Further Evidence
조장희,김경요,김형균,이병렬,강창기,나창수,Cho, Zang-Hee,Kim, Kyung-Yo,Kim, Hyeong-Kyun,Lee, Byung-Ryul,Wong, E.K.,Kang, Chang-Ki,Na, Chang-Su The Korean Acupuncture Moxibustion Medicine Societ 2001 대한침구의학회지 Vol.18 No.3
목적 : 이 실험의 목적은 경혈에 대한 침자극이 대뇌피질에 어떠한 영향을 미치는가에 대하여 체계적이고 객관적으로 증명하는 것이다. 방법 : 시각과 관련이 있는 광명(GB37), 청각과 관련이 있는 협계(GB43) 및 외관(SJ5)을 자극하고 fMRI를 통하여 대뇌피질의 활성정도를 관찰하였다. 결과 : 이들 경혈의 자극으로 시각과 청각과 관련된 피질의 활성이 나타났다. 자극에 의한 대뇌피질 활성을 fMRI를 통하여 고찰한 결과 특정한 경혈의 자극이 대뇌피질을 활성화시킨다는 사실을 알 수 있었다. 결론 : 치료 효과는 그 경혈의 자극에 의한 대뇌피질의 활성과 관련이 있음을 말하는 것으로, 경혈지극과 대뇌와의 상관성을 증명하는 것이다.
공개용과 상업용 DICOM STL 파일변환 프로그램으로 출력한 삼차원 프린팅 쇄골 골절 모델의 품질비교
오왕균(Wang-Kyun Oh),김형균(Hyeong-Gyun Kim) 대한방사선과학회(구 대한방사선기술학회) 2018 방사선기술과학 Vol.41 No.1
The recent 3D printing technology is used in various medical, manufacturing, and education fields and is more efficient in terms of production process, time, and cost than existing production. Especially in fracture surgery, interest and research have been focused on improving accuracy, shortening of operation time and recovery time, and reducing reoperation. However, because of the financial and technical problems of the 3D printer and the file conversion program, the 3D printing is made directly at the hospital, and it is not generally used for diagnosis of fracture and surgical research. In this study, to solve those problems, clavicle CT imaging was switched into Osirix Open Source DICOM Viewer, Stereolithography file conversion programs and commercial Terarecon 3D DICOM Viewer, file conversion programs, and then clavicle fracture model was directly made through 3D printer of fused filament fabrication wire additive processing method, and then the accuracy of the shape was compared and analyzed. Clavicle fracture models printed in two methods were blind-tested on clinicians of general hospitals orthopedics and radiologic technicians with over 10 years of experiences, and then their analysis opinions of resolution reviews were analyzed. The result showed no difference. The 3D printing model with open source DICOM STL file conversion program used was applicable to clinical, so it is considered useful in precision diagnosis of fracture and operation plans.