• Title/Summary/Keyword: 키트

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Selection of epitope for development of H5N1 specific diagnostic kit based on bioinformatics (생명정보학 기반 H5N1에 특이적인 진단키트 개발을 위한 epitope 선별)

  • Lee, In Seoung;Kim, Hak Yong
    • Proceedings of the Korea Contents Association Conference
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    • 2014.11a
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    • pp.57-58
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    • 2014
  • 인플루엔자 A 바이러스의 아형인 H5N1은 고병원성으로 조류 독감을 일으킨다. H5N1 바이러스는 원래 조류끼리만 감염되는 독감이고, 사람에게는 전염되지 않는다고 알려져 있었으나, 2003년에 베트남과 중국을 시작으로 현재까지 168명의 사망자가 기록되고 있다. 그러나 현재 시판되고 있는 진단키트(Rapid diagnostic kits)들은 H5N1 에 특이적인 것이 아니라 influenza A virus 모두를 진단한다. 따라서 influenza 감염여부는 확인 할 수 있지만, 이것이 H5N1 인지는 확인 할 수가 없다. H5N1은 전염성이 강하기 때문에 빠르게 진단하여 감염조류를 살 처분 하여야 더 많은 경제적 손실을 줄일 수 있다. 따라서 H5N1 에만 특이적인 epitope를 네트워크 기반으로 예측하여 진단제에 응용할 수 있도록 하고자 한다. 각 서열 정보는 Openflu (http://openflu. vital-it.ch/browse.php)에서 얻었다. H5N1은 H1N1에서 유래되었기 때문에 두 subtype의 차이점을 알아보고자 TCOFFEE에서 multiple sequence alignment를 수행한 결과 N-terminal 부분이 상이하였다. 상이한 H5N1의 N-terminal 부분이 H5N1 virus에 감염된 모든 host에서 존재하는지 알아보기 위해 host가 사람인 경우와 조류인 경우를 TCOFFEE에서 alignment 하였다. 그 결과 H5N1의 N-terminal 부분은 사람과 조류에서 보존적이었다. 따라서 H5N1의 N-terminal이 다른 subtype과 유사하지 않고 H5에만 특이적이기 때문에 진단키트 제작을 위한 epitope로 사용할 수 있을 것으로 기대된다.

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Application of artificial insemination and pregnancy diagnosis kit for Korea native black goats (한국 재래흑염소의 계통별 인공수정과 임신진단 키트의 활용)

  • Kim, Kwan-Woo;Lee, Jinwook;Jeon, Dayeon;Lee, Sung-Soo;Kim, Seungchang;Lee, Sang-Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.10
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    • pp.446-451
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    • 2019
  • This study investigated the application of artificial insemination and pregnancy diagnosis kit for Korean native black goats. Semen was collected by electrical ejaculation, followed by semen analysis and artificial insemination in three goat strains (Dangjin, Jangsu and Tongyoung). Pregnancy was confirmed using a cow pregnancy test kit (IDEXX Rapid Visual Pregnancy Test kit) and ultrasound diagnosis. Analysis revealed that semen collected from male Korean native black goats by electrical ejaculation was about 1~1.5 ml in volume, $18{\sim}25{\times}10^8/ml$ concentration, and having > 97% motility. Furthermore, confirmation of pregnancy by pregnancy test kit and ultrasound diagnosis after artificial insemination were similar. In addition, the efficiency of pregnancy was 20~40% for all three strains: Tongyoung was the highest with 44%, followed by Dangjin (%), and Jangsu (20%). This study determines the artificial fertilization efficiency and the feasibility of using a cow pregnancy test kit for early pregnancy diagnosis in Korean native black goats. Although further research is required for validation, the results of the current study contribute to the breeding and improvement of Korean native black goat in research institutions as well as in general farms.

Evaluation of the Efficiency of E. coli O157: H7 Rapid Detection Kit using Immunochromatography (면역크로마토그래피를 이용한 E. coli O157: H7 신속검출 키트의 유효성 평가)

  • Kwak, Hyo-Sun;Lee, Dong-Ha;Moon, Hee-Sook;Park, Jong-Seok;Woo, Gun-Jo;Kim, Chang-Min
    • Journal of Food Hygiene and Safety
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    • v.18 no.3
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    • pp.118-124
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    • 2003
  • For the rapid detection of various pathogenic microorganisms from food sample, various kinds of kits have been developed and commercially available in the markets. With the advantages of speed, accuracy and easiness, the market of these kits has gradually increased for the QC and QA field of food company as well as testing facilities or laboratories. In this study, the characteristics such as the detection limit and the sensitivity of immunochromatographic type of rapid detection kit (Donga Co, Korea, D-kit) for E. coli 0157:H7 developed by monoclonal antibody were examined and also the possibility of application of the kit to food samples was evaluated. The reference kits used for comparison study were Reveal E. coli 0157:H7 (Neogen Co., USA, R-kit) and VIP EHEC kit (Biocontrol Inc., USA, V-kit) occupying major market share. In the detection limit test with the E. coli 0157:H7 reference, both R-kit and D-kit showed a distinct positive reaction in $10^4$/ml and weak positive reaction in $10^3$/ml, whereas V-kit showed a same reaction in 105/ml. Also, it was identified that the culture treated with heat showed more sensitivity than no heat treated culture. The sensitivity test was conducted against 22 isolates of E. coli 0157:H7, 7 strains of non-O157:H7 verotoxin-producing E. coli, 40 strains of E. coli with different O and H antigen type, and 38 strains of non-E. coli Enterobacteriaceae, and all of the test strains except three were showed exactly three were showed exactly the same reaction against three kinds of the tested kits. All the three kinds of kits showed a positive reaction against E. coli O157:H19, E. coli O148:H18 and Salmonella galinarium. We suppose that there might be a similarity in serological property between these three strains and O157:H7. From the test results, it can be concluded that there is (was) no difference between the D-kit developed in this study and R-kit or V-kit based on the detection limit and sensitivity.

불고지죄

  • No, Yeong-Han
    • The Korea Swine Journal
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    • v.11 no.9 s.121
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    • pp.40-41
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    • 1989
  • 돈콜레라 살처분 보상금 제외나 오제스키병 진단키트 개방으로 불고지죄를 범하는 사람이 나오지 않기를 바라지만, 죄의식을 느끼지 않는 범법자가 없으리라고 생각하기 힘들다

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업계소식

  • Korea Electronics Association
    • Journal of Korean Electronics
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    • v.14 no.7
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    • pp.32-40
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    • 1994
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