• Title/Summary/Keyword: diease resistance

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Clinical Effects of Prothinoamide, Cycloserine, Para-Aminosalicylic Acid, Ofloxasine in Retreatment of Pulmonary Tuberculosis (폐결핵 재치료 환자에서 Prothionamide, Cycloserine, Paraminosalicylic acid, Ofloxasine을 이용한 경구 4제 요법의 임상 효과)

  • Hong, Jae-Rak;Yoo, Min-Kyu;Jeong, Jae-Man;Kim, Young-Jun;Son, Mal-Hyeon
    • Tuberculosis and Respiratory Diseases
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    • v.43 no.5
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    • pp.693-700
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    • 1996
  • Background : Antituberculous therapy is set a short-term therpy used isoniazid(INH), rifampin(RFP), ethambutol(EMB), pyrazinamide(PZA) from 1970s' and treatment rate has been very improved. But drug interruption or irregular medication due to side effects and resistance of drug are serious problem to retreatment cases, specially. Ofloxasine(OFX), developed from Quinolone at 1980's is effective not only other respiratory infectious disease but also pulmonary tube rculosis. And this is useful drug instead of injection agents for retreatment patients who have side effects to other drugs, lived far distance from medical clinics. So, we will evaluate theffectiveness as four oral drugs involving OFX. Method : A retrospective study was made through the regular follow up of smear positive cases,who treated by four drug, namely, prothionamide (PTA) cycloserine(CS), OFX, paraminosalicylic acid(pAS). Results: 1) Out of 66case with positive sputum AFB smear, 42(64%)cases achieved the negative conversion. 2) Considering the negative conversion in all group, 34 case (52%) of sputum conversion occured within first 6 months, on the extent of diease was minimal, moderate, far advanced pulmonary tuberculosis, sputum AFB smear negative response to treatment was 100%, 78%, 46% respectively. 3) The roentgenological improvement occured in 38(58%), extent of diease was minimal, moderately, far advanced pulmonary tuberculosis, Roentgenological improvement to retreatment was 75%, 64%, 46%. 4) When the drnation of patients illness was less than 1 year, 1 to 3 years, 3 10 5 years and more than 5 years, sputum AFB smear negative response to retreatment was 100%, 88%, 80%, 52 %. 5) On side effects, major problems are gastrointestinal troubles, mild liver function abnormality, psychotic problemes, and skin problem(urticaria, itching sensation). Conclusion : The duration & extents of patients illness was shorter & minimal, sputum AFB smear negative response rate was better. Radiologic response is better as shorter duration and minimal extent of diease. But, as diease is longer duration & far advanced, sputum negative conversion & Roentgenological improvement is poor and limited. The adverse reaction was mainly observed gastrointestinal troubles(indigestion, abdominal pain, nausea, vomiting, diarrhea) and are well controled by symptomatic management in most patients, as regard to tolerance to the secondary drugs.

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Vector Construction and Transformation of Ginseng (Panax ginseng C.A. Meyer) Using Disease Resistant Genes (내병성 관련유전자의 운반체 재조합 및 인삼(Panax ginseng C.A. Meyer)의 형질전환)

  • Yang, Deok-Chun;Lee, Eun-Kyung;Kim, Moo-Sung
    • Journal of Ginseng Research
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    • v.27 no.1
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    • pp.37-42
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    • 2003
  • For study about introduce of gene connected with disease and transformation system of gingseng, chitinase gene cloned from soybene and disease resistant gene were carried out for expression and transformation of plant using Agrobacterium. The disease resistance gene(DR-49), 35S-35S-AMV, has been constructed. The disease resistance gene and chitinase gene were introduced into the binary vector pRD 400, which were mobilized into Agrobacterium tumefaciens faciens strain MP 90 and LBA 4404 harboring disarmed Ti-plasmid. As a result of induce transformants using ginseng embryo and petiole, multi shoots were formed on MS medium supplemented 1 mg/ι 2,4-D and 0.5 mg/ι kinetin. Also transformation by cotyledonwas effective on MS medium supplemented 1 mg/ι 2,4-D and 0.5 mg/ι kinetin, transformation percent of disease resistant gene and chitinase gene were showed 18%, 14% respectively. As transformed tissue is under pre-embryoid condition, normal shoot is required through the process of matured embryo.