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      • 신경병증성 통증 모델쥐 뒤뿌리신경절의 Nitric Oxide Synthase 아형 및 NADPH-diaphorase 발현에 관한 연구

        정성균,김수일,양은진,류택근,권오유,박경란,이영호,김원식 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

        Injury to peripheral nerve somtimes lead to neuropathic pain. Nitric oxide(NO) is increased in the dorsal root ganglia (DRG) of neuropathic pain models, and L-NAME, a nitric oxide synthase (NOS) inhibitor, reduces neuropathic pain. However, it is not known that underlying mechanism of NO involvement in development and maintanence of neuropathic pain. It was found that there were three NOS isoforms-nNOS, eNOS, and iNOS. It is also necessary to investigate NOS isoforms in neuropathic pain. The aim of this study is to investigate NOS isoforms and NADPH-diaphorase expressions and underlying mechanism of NO involvement in neuropathic pain. The 5^th lambar (L5) DRG were obtaind after tight ligation of L5 an L6 spinal nerves for 7 days. Toluidine blue stain, immunohistochemistry for nNOS, eNOS, and iNOS, and NADPH-diaphorase histochemistry were performed. All specimens were observed under light microscope. nNOS expression was increased significantly in the cytoplasm of the DRG of ligated side at 7 day post-ligation (7D PL). eNOS expression was also increased in the blood vessel, a few neurons or satellite cells, and cell membrane of Schwann cells in the DRG of ligated side at 7D PL. iNOS expression was increased in a few blood vessels and cytoplasm of small neurons in the DRG of ligated side at 7D PL. NADPH-diaphorase expression was increased significantly in the neurons of the DRG of ligate side at 7D PL, but NADPH-diaphorase expressions were weak or absent in the blood vessel and Schwann cell in the contralateral DRG and the DRG of ligated side at 7D PL. It is suggested that NOS isoforms may be closely related to development and mantanence of neuropathic pain in order of nNOS>eNOS>iNOS.

      • 고추 탄저병 저항성 중간모본 ‘원예 100005호 ’,‘원예 100006호’ 육성

        양은영,김수,채영,채수영,조명철,문지혜,박태성,이우문,곽정호 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

        Owing to frequent heavy rain due to abnormal weather, the occurrence of pepper anthracnose has recently increased, which affects the supply and demand of pepper. As a result, the price of red pepper powder in 2011, for example, increased three times compared to the average year. Although anthracnose of pepper plants has been controlled by fungicides until now, it is important to develop new resistant cultivars because of the reduction of the labor force in rural area and occurrence of new anthracnose strains resistant to fungicides. National Institute of Horticultural and Herbal Science developed two pepper lines, ‘Wonye 100005’ and ‘Wonye 100006’ that are resistant to pepper anthracnose. These lines were developed by continuous selection of progenies from a cross between ‘Wonye AR1’, which were developed from interspecific hybridization and ‘TF68’. The anthracnose resistance level of the two lines was higher than that of commercial cultivars and similar to check varieties showing highest level of anthracnose resistance.

      • 네오스트그민 독성에 대한 디펜히드라민 및 프로메사진의 효과

        박은희,양근해,전민정 숙명여자대학교 약학연구소 1998 약학논문집-숙명여자대학교 Vol.14 No.-

        This study was designed to examine the effects of diphehydramine and promethazine on the toxic manifestation of neostigmine. It was found that diphenhydramine and promethazine increase acetylcholinesterase activity in liver of mice. When diphenhydramine and promethazine was treated before administration of neostigmine, it significantly extend the onset latency in the signs of toxicities which were characteristically produced by neostigmine and it also prevented lethality in all of the animals.

      • 간호사의 투약안전 역량 강화를 위한 교육요구 분석

        양혜영, 이광희, 홍선영, 이정은 신한대학교 2021 신한대학교 논문집 Vol.44 No.-

        The purpose of this study is to present basic data necessary for the development of educational programs to improve nurses' medication safety competency by analyzing educational needs. A survey was conducted on 37 clinical nurses at secondary hospitals or higher in Seoul and Gyeonggi-do. As a result of analyzing the nurse's medication experience, there were no cases of administering expired drugs, but various medication errors occurred. In addition, nurses had many organizational problems in performing oral prescriptions rather than receiving regular instructions for medication. There were six items that showed the largest statistical difference between the group of important and implementation levels of nurse's medication safety competency. In addition, as a result of the Borich’s demand analysis, the highest priority items were "Measures can be established to prevent recurrence in the event of drug side effects" and "Cases can be analyzed to find the root cause of medication errors." Based on the results of this study, follow-up studies on the development of educational programs that can strengthen nurses' medication competency should be conducted.

      • Vibrio vulnificus 박테리오 파아지의 특성

        오양효,윤소겸,공은진,김민정,김영부,박영민 대한감염학회 1995 감염 Vol.27 No.5

        목 적 : 이미 보고되어 있는 파아지들의 경우, 일반적인 형태, 숙주역과 몇 가지의 성질만 연구되어 있으므로 보다 상세한 특성에 대한 연구가 필요한 상태이다. 본 연구에서는 해양으로부터 분리한 V. vulnificus를 숙주균으로 하여 투명한 용균반을 형성하는 파아지를 분리해 낸 다음, 분리된 V. vulnificus 파아지의 특징을 연구하고자하였다. 방 법 : V. vulnificus 를 숙주균으로 하여 해산물로부터, 숙주균에 특이적인 파아지를 분리하고, 농축 정제과정을 거쳐 파이지입자를 순수분리하였다. 파아지의 형태를 전자현미경으로 관찰하였으며, 분리된 파아지의 숙주특이성을 조사하고, 파아지 입자의 물리적 특성을 검토하기 위해, 온도 안정성시험, pH 안정성 시험을 실시하였다. 파아지의 흡착율, 파아지의 흡착율에 미치는 무기염 이온의 영향, 온도의 영향과 pH의 영향을 관찰하였다. 파이지의 일단증식곡선을 구하였으며 토끼 면역과 교차 중화 시험, 파아지 핵산의 특성, 구조단백질의 특성을 조사하였다. 결 과 : 전자현미경관찰결과 본 연구에서 분리한 파아지는 두부와 미부를 가지는 형태로 미부에 꼬리판과 꼬리섬유를 가지고 있었다. 파아지의 물리적성질시험 결과 파아지는 50℃이하의 온도에서 안정하였으며 중성pH영역에서 안정하고 산성과 알칼리 영역에서는 활성을 잃었으며 자외선에는 35초 조사에 50% 정도 불활성화 되었다. 파아지는 약 65%의 흡착율을 나타내었으며 흡착에 ??, ??을 요구하였다. 파아지입자가 안정한 온도와 pH영역에서는 흡착에 영향을 받지 않았으며 일단증식시험 결과 108 PHU/ml의 파아지 입자를 생산하였다. 정제한 파아지를 항원으로 하여 토끼에 면역한 항혈청에 파아지가 중화되었으며 파아지 핵산은 이중나선 DNA였다. 파아지의 구조단백질은 SDS-PAGE polyacrylamide gel 전기영동 결과 2개의 밴드를 나타내었다. 그리고 Western blotting 결과 파아지의 전기영동 결과와 동일한 위치의 밴드에서 항원성을 나타내었다. 결 론 : 인체병원균으로 중요성이 인식되고 있는 V. vulnificus는 해산물의 위생과 국민건강에 직접적인 영향을 미칠 수 있는 세균으로 이에 대한 활발한 연구가 요구되는 실정이다. 파아지의 분리율은 숙주균의 분리율에 의존하므로 숙주균의 해수내 분포에 영향을 미친다고 추측되며, 파아지는 숙주균에 감염되어 숙주균을 용균시키므로 숙주균의 개체수를 조절하여 생태학적 측면에서 중요한 기능을 담당하는 것으로 여겨진다. Background : Vibrio vulnificus causes severe wound infection and life-threatening septicemia. In this study we present the characteristics of V. vulnificus bacteriophage and the basis of pathogenicity study of V. vulnificus related on bacteriophage. Methods : We isolated bacteriophage for V.vulnificus from marine products and examined its physiological and biochemical characteristics, and the ultrastructure by electron microscopy (TEM,SEM). And also, we investigated host ranges, temperature stability, pH stability, inactivation by UV irradiation, DNA isolation and analysis and structural protein analysis of the bacteriophage. Results : The adsorption rate of bacteriophage was above 80% and had a little influence at 10-45℃ and pH5-10. Isolated bacteriophage was used to produce antiserum against rabbits and its antigenicity was investigated by cross-neutralization. Western blot analysis showed the capsid protein of bacteriophage had antigenicity. The bacteriophage had double-strand DNA. In restriction analysis, the phage DNA was digested HinfI. The structural protein of phage showed two bands of 34.7kDa and 18.4kDa on SDS-PAGE. Conclusion : The specificity of bacteriophage may be due to the specific binding site that be possessed by host strain surface. Therefore, it seems that virulent bacteriophage controls the number of host strain and then takes a role on natural marine environment.

      • 건조방법에 따른 대파의 품질특성

        이정은,이현규,양차범 漢陽大學校 韓國生活科學硏究所 2002 韓國 生活 科學 硏究 Vol.- No.20

        The quality properties of green onion as affected by drying was studied. The drying methods were hot-air drying, vacuum drying and freeze drying. The color (lightness, yellowness and ΔE) showed similar trend to drying methods. However, hot-air drying showed the greatest change in browning degree. The content of ascorbic acid was 26.48 ppm (hot-air drying), 52.29 ppm (vacuum drying) and 67.61 ppm (freeze drying). The rehydration rate of dried green onion were higher in the order of freeze drying>vacuum drying>hot-air drying. From the results, the quality properties of green onion in hot-air drying were higher decreased than those in vacuum drying and freeze drying methods, which were similarly changed.

      • KCI등재
      • S. cerevisiae에서 세포주기의 진행에 관련된 COS28과 COS46 유전자의 클로닝

        박정은,임선희,선우양일 동아대학교 기초과학연구소 2000 基礎科學硏究論文集 Vol.17 No.1

        본 연구에서는 효모의 돌연변이주를 분리하여 G1/S기에서 세포주기 진행에 관련된 유전자의기작을 이해하기 위해 연구를 수행하였다. 먼저, cos28과 cos46 돌연변이주의 MMS(methylmethane sulfonate)와 HU(hydroxyurea)에 대한 감수성을 조사하였다. 이들 돌연변이주들은 MMS와 HU에 대해서 감수성을 보이므로, S기 checkpoint에 관련되었다고 생각된다. 다음으로 cos28과 cos46 돌연변이를 상보하는 유전자를 클로닝하였고, 서열화하였다. 그리고 클론된 유전자는 데이터 베이스 분석을 통해 조사하였다. cos28 변이주를 상보하는 DNA 단편은 전체 6개의 ORF를 가지며 그 중 기능이 알려진 ORF로는 RPS21B와 LCB3와 MRS3가 있고, 기능이 알려지지 않은 ORF로는 YJL131와 YJL132와 YJL135의 세개를 포함하고 있었다. cos46 유전자는 전체 6개의 ORF를 가지며, 그 중 기능이 알려진 CYP5와 HNT2와 SRB7와 GIC2를 가지고, 기능이 알려지지 않은 ORF로 YDR306, YDR307를 포함하고 있음이 확인되었다. In this study, to understand the mechanisms of genes which related in cell cycle progression at G1/S phase, using the isolated mutants in S. cerevisiae were investigated. First of all, cos28 and cos46 were examined the sensitive to MMS(methylmethane sulfonate) and HU(hydroxyurea). These mutants were showed MMS, HU sensitivities and might be a act at a checkpoint pathway during S phase. These mutants were carried out gene cloning for the gene which were complemented the cos mutants. As a result, the DNA fragments which complement with the cos28 and cos46 mutants, were cloned and sequenced. And then cloned genes were surveyed though data base analysis. Complemented DNA fragment of COS28 contained six ORF which were consisted RPS21B, LCB3, MRS3, YJL131, YJL132, and YJL135. Complemented DNA fragment of COS46 contained six ORF which were consisted CYP5, HNT2, SRB7, GIC2, YDR306 and YDR307.

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