• Title/Summary/Keyword: 면역억제제

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Convergence for adherence: Subjectivity of immunosuppressive medication adherence after kidney transplantation patient (이행증진을 위한 융복합: 신장이식 환자의 면역억제제 투약이행에 대한 주관성)

  • Kim, Min-Young;Lee, Eun-Ju;Park, Euna
    • Journal of Digital Convergence
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    • v.13 no.6
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    • pp.235-246
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    • 2015
  • After kidney transplantation, immunosuppressive medication is essential to enhance the quality of life and survival of the transplanted patient. To promote the medication adherence, subjects are required to have converged attitude with open mind. Medication adherence will depend on the attitude of the psychosocial characteristics and treatment guidelines. The purpose of this study was to identify the specific types and characteristics of medication adherence in the view of kidney transplanted patients. Q-methodology, a technique for extracting subjective opinions, was used. Forty participants completed the Q-sort activity, rating each statement relative to the others. The collected data were analyzed by QUANL PC program. Four types of medication adherence of kidney transplanted patients were identified: 'positive lifestyle management type', 'vigilant appearance management type', 'somber oblivion type', 'vigilant family support type'. Through the identification of attitudes to medication adherence, repeated and individualized medication adherence program will help to prevent graft rejection.

The Morphological Changes of Cryopreserved Rat Trachea After Heterotopic Transplantation (쥐의 초냉동기관 이소 이식 후 형태학적 변화)

  • 성숙환;서정욱;박종호;김경환
    • Journal of Chest Surgery
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    • v.29 no.11
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    • pp.1182-1190
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    • 1996
  • The best treatment of congenital or acquired tracheal stenosis is resection and end to end anastomosis. Various prosthetic material and tissue graft replacement can be considered when the stenotic segment is too long, but their uses are still limited due to many serious complications. The present study examined the effect of immunosuppression and cryopreserved allograft trachea after intraperitoneal omental implantation for evaluation of the possibility of tracheal transplantation. Thirty tracheal segments were harvested from fifteen donor Wistar rats. Among them eighteen segments were implanted immediately(group I, II, III) and twelve segments were used for cryopreservation(group IV, V). Heterotopical intraperitoneal implantation was performed in five groups of rats(n=6); Group I was Wistar syngeneic controls and received no immunosuppression. Group II and III were those of Sprague-Dawley recipients, the former receiving no immunosuppression and the latter receiving immunosuppression(Cyclosporin A 15mg/kg/day, Methylprednisolone 2mg/kg/day). Group IV and V were groups of Sprague-Dawley recipients, the former receiving immunosuppression and the latter receiving no Immunosuppression. After 28 days, rats were sacrificed and the tracheal segments were histologically evaluated. Epithelial thickness was significantly decreased in group II, IV. Epithelial regeneration score was also significantly decreased in II. All rats maintained well their round tracheal contour. In conclusion; I) trachea could be preserved for a long time with cryo method, 2) epithelium could regenerate fully with omentopexy in cryopreserved trachea, 3) immunosuppresion was not necessary with cryopreserved trachea.

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The Effect of Ginseng Saponin on the Mouse Immune System (생쥐의 면역계에 미치는 인삼 사포닌의 영향)

  • 김미정;정노팔
    • Journal of Ginseng Research
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    • v.11 no.2
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    • pp.130-135
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    • 1987
  • To detect the effect of ginseng saponin on the immune response, mice were immunized with a protein antigen (gamma-globulin of chick). Blood was then drawn from them twice, after 10 days of the first immunization and after 10 days of the second immunization respectively, and measurements were made by ELISA method of the antibody titer in antiserum. In addition, mice that has been immunized with the same antigen were treated with immunosuppressor to suppress the immune system of the mice. After the immune system was suppressed, the effect of ginseng saponin on the recovery of immune response was measured by the same method. The experimental groups those were given ginseng saponin (10 mg/kg/day) showed a little variance between-individuals, however showed much higher antibody titer than the control groups those were given the saline solution. Moreover, there was a little recovery from the immune suppression. Although the mechanism of the effect of ginseng saponin on immune response was not well loom, it is believed that ginseng saponin has the effect of increasing the synthesis of serum protein together with its action as one of the immunostimulators.

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항바이러스제에 비해 내성 적은 것이 장점

  • 최희정
    • RED RIBBON
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    • s.57
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    • pp.14-15
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    • 2004
  • 항바이러스제로는 장기 효과면에서 한계가 있으며 면역 억제는 회복시킬 수 있다는 근거에서 면역요법이 도입되었다. 면역요법은 바이러스가 아닌, 사람의 면역체계를 목표로 하는 것이기 때문에 치료에 대한 내성이 생길 염려가 적다.

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Immune Evasion Mechanism as a Guide for Immunotherapy in Head and Neck Cancer (두경부암에서 면역회피 기전과 면역항암제 치료)

  • Chang, Hyun
    • Korean Journal of Head & Neck Oncology
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    • v.33 no.1
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    • pp.1-5
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    • 2017
  • Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer globally with high morbidity and mortality. Immune surveillance is well recognized as an important mechanism to prevent development or progression of HNSCC. HNSCC can escape the immune system through multiple mechanisms including development of tolerance in T cells and inhibition of T-cell-related pathways, generally referred to as checkpoint inhibitors. Recent clinical trials have demonstrated a clear advantage in advanced HNSCC patients treated with immune checkpoint blockade. Right at the front of the new era of immunotherapy, we will review current knowledge of immune escape mechanisms and clinical implication for HNSCC.

Colchicine Derivatives Allows Prolonged Survival of Cardiac Allograft in the Rat (백서에서의 동종이형의 심장이식후 Colchicine 변형 물질 투여군의 장기 변존)

  • Kim Young-Hak;Lee Hyung-Chang;Chung Won-Sang;Kang Jung-Ho;Kim Hyuck;Chon Sun-Ho;Shin Sung-Ho
    • Journal of Chest Surgery
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    • v.38 no.9 s.254
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    • pp.595-600
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    • 2005
  • Background: Colchicine with its immunosupressive properties has been used with benefcial effects in autoimmune disease, such as Gout, etc. Whether colchicine, by virtue of the above property, could attenuate the process of cardiac allograft rejection in the rats is investigated in this report. Material and Method: We compared the untreated group (Control, n=6), Cyclosporin A group (10 mg/kg, daily, n=20), and Colchicine derivative group (Colchicine 40 ${\mu}g$/kg, n=20) of cardiac allografts in the rats. Result: In the untreated control group (n=6), all of 6 rats showed rejection within 3 weeks after cardiac allograft. In the cyclosporin A group (n=20), cyclosporin A (10 mg daily oral dose) was administered at a 10 mg daily oral dose and promoted long-term survival (over 100 days). The cyclosporin A group had one mortality at the 18th post-operative day due to infection. Furthermore, in the Colchicine derivatives group (n=20) with a daily IP (Intra Peritoneum) dose (40 ug/kg/day), we observed long-term survival.(> 100 days), except for one rat that died of an anesthetic problem (respiratory failure) at the 9th post-operative day. Conclusion: Experiments have also been performed to evaluate whether the effect of colchicine derivatives allowed prolonged survival of cardiac allografts compared with the cyclosporin A administration group in the rats.

자원식물을 이용한 아토피 치료제 개발

  • Jeong, Yong-Jun;Park, Jong-Pil;Gang, Se-Chan
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2010.10a
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    • pp.22-22
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    • 2010
  • 식생활의 변화, 공해 등의 환경변화 등으로 인하여 아토피 환자가 급격하게 증가하고 있다. 본 연구소에서는 자원식물로부터 아토피 치료제 개발을 위하여 면역세포의 탈과립화억제를 통하여 수종의 식물 자원을 탐색한 바 있다. 애기땅빈대, 여뀌, 고들빼기 등으로부터 유효성분 분리하여 산업화 단계에 있으며, 특히 본 연구에서는 한약자원인 지모로부터 분리된 성분에 대하여 보고하고자 한다. 지모는 현재 수많은 보고를 통하여 항암성분, 여성호르몬조절성분 등이 보고되고 있으며, 본 연구에서는 nyasol을 비롯하여 4개의 유도체를 분리하였다. 분리된 성분에 대한 면역세포 탈과립화억제 평가를 수행하였으며, 이들 성분이 함유되어 있는 MeOH추출물에서 systemic 및 passive anaphylaxis 억제 효과가 있음을 확인하였다. 특히, 이들 성분에 대한 유도체 합성을 진행하고 있으며, 이에 대하여 면역세포 탈과립화 억제를 통한 항아토피 및 항알러지에 대한 연구결과를 보고하고자 한다. 이들의 성분과 합성 유도체들은 항아토피에 활용될 수 있으며, 지모추출물자체로도 화장품, 식품, 의약품에 적용이 가능할 정도로 우수한 효능이 확인되었으며, 앞으로 이들 유도체에 대한 의약품 개발연구가 기대된다.

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Heterotopic Heart Transplantation in the Rat Model (쥐모델에서의 이소성의 심장이식)

  • Chung, Won-Sang;Jeon, Yang-Bin;Chun, Soon-Ho;Kim, Hyuk;Lee, Chul-Burm;Kim, Young-Hak;Jee, Heng-Ok;Seo, Jung-Kuk;Kong, Gu
    • Journal of Chest Surgery
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    • v.31 no.5
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    • pp.531-535
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    • 1998
  • In 1964, Abbott and Colleagues published the world's first heterotopic heart transplantation technique in the rat. Their method established circulation by end-to-end anastomoses of the graft's aorta and pulmonary artery to the recipient's abdominal aorta and Inferior Vena Cava(IVC), respectively. In 1966, Tomita et al altered Abbott's technique by employing end-to-side rather than end-to-end anastomoses, thus eliminating the hind leg paralysis that sometimes resulted from Abbott's technique. In order to prevent postsuture hemorrhage (since 7-0 silk suture was the finest available at that time), Tomita's aortic anastomosis was done with double up-and-down continuous suture technique. A single layer continuous anstomosis effected the pulmonary artery-IVC anastomosis. The availability of Nylon monofilament suture made it possible for Ono and Lindsey to use a single layer suture technique for the aortic end-to-side anastomosis in their modified rat heart transplantation. We observed survival time between control group and Immunosuppression(Cyclosporine administration, 10mg/Kg${\times}$4 times postoperatively) group after heterotopic heart transplantation in the rat model. The cyclosporine adminstration group survived longer than the control group, thus we concluded that cyclosporine was based on Immunosuppressive drugs.

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HIV치료제 현황

  • 박윤수
    • RED RIBBON
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    • s.58
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    • pp.16-19
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    • 2004
  • 에이즈는 HIV$^{human immunodeficiency virus}$라는 바이러스에 의해 유발되므로 에이즈를 치료하기 위해서는 HIV를 우리 몸속에서 박멸하여야 한다. 1987년 AZT가 최초로 FDA의 공인을 받은 이래로 현재까지 여러 가지 약제들이 에이즈 치료에 사용되고 있다. 아직까지 HIV를 박멸하여 에이즈를 완치할 수 있는 치료제는 개발되지 않고 있으나 에이즈 치료제를 3가지 이상 복용하는 강력한 항레트로바이러스 요법highly active antiretroviral therapy, HAART을 시행함으로써 손상된 면역 기능을 회복시키고 기회감염을 줄여 좋은 효과를 보인다. 에이즈 치료제는 크게 세가지로 나눌 수 있다. 첫째는 뉴클레오사이드 역전사효소 억제제이고 둘째는 비뉴클레오사이드 역전사효소 억제제, 셋째는 단백분해효소 억제제이다. 현재 우리나라에서 사용되는 에이즈 치료제에 대해 알아보도록 하자.

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