• 제목/요약/키워드: Et$_3$B

검색결과 779건 처리시간 0.024초

광견병 진단시약 및 예방백신의 국제표준 (Standard Diagnostic Tests and Vaccines for Rabies)

  • 강영배;이재진
    • 대한수의사회지
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    • 제30권3호
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    • pp.162-171
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    • 1994
  • 이 자료는, 국제수역사무국(Office de International Epizooties : O.I.E.)에서 발행한 Manual of Standards for Diagnostic Tests and Vaccines for List A and List B Diseases of Mammals, Birds and Bees(1992) (포유류, 조류, 꿀벌에 있어서의 A급 및 B급 질병에 대한 진단시약 및 예방백신에 대한 표준지침) 중에서 광견병(B8, Rabies)에 관한 내용(Chapter 22, 205-215)을 우리나라의 광견병 방역대책 수립과 생물학적 제제개발을 위한 참고자료로 활용하기 위하여 번역 소개한 것이다. 본래의 원저자는 프랑스의 Dr J. Blancou로서 프랑스 국립수의식품연구원(CNEVA) 산하의 광견병 및 야생동물 병리연구소(Laboratoire d'Etudes sul la Rage et de la Pathologie des Animaux Sauvages)에 책임자로 재직한 바 있으며, 1991년 이후 현재에는 국제수역사무국(O.I.E)의 사무총장(Director-general)직을 맡고 있다.

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In Vitro Effect of Aspalatone on Platelet Aggregation and Thromboxane Production in Human Platelet Rich Plasma

  • Suh, Dae-Yeon;Han, Byung-Hoon
    • Biomolecules & Therapeutics
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    • 제4권2호
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    • pp.122-126
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    • 1996
  • In vitro inhibitory effect of aspalatone ((3-(2-methyl-4-pyronyl)]-2-acetyloxybenzoate) on collagen-, ADP-, and epinephrine-induced platelet aggregation in human platelet rich plasma (PRP) was compared with the effects of reference drugs (acetylsalicylic acid, cilostazol and ticlopidine). Aspalatone inhibited time and dose dependently human platelet aggregation induced by collagen; relative potency was in the order of cilostazol>acetylsalicylic acid>aspalatone>ticlopidine. Aspalatone, like acetylsalicylic acid, potently inhibited only the secondary phase of ADP-and epinephrine-induced aggregation. Thromboxane $B^2$ production evoked by collagen in human PRP was inhibited significantly and concentration-dependently by aspalatone and acetylsalicylic acid. These results were in agreement with the earlier studies in which the antiplatelet action of aspalatone was indicated to be due to the inhibition of platelet cyclooxygenase activity (Han et al., Arzneim. Forsch./Drug Res. 44(II), 1122, 1994; Suh and Han, Yakhak Hoeji 39, 565, 1995). In addition, the inhibitory activity of aspalatone on the platelet aggregation appears to be inversely related to the rate of nonspecific deacetylation of the drug in plasma.

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Purification and refolding of the recombinant subunit B protein of the Aggregatibacter actinomycetemcomitans cytolethal distending toxin

  • Jeon, Yong-Seon;Seo, Sung-Chan;Kwon, Jin-Hee;Ko, Sun-Young;Kim, Hyung-Seop
    • Journal of Periodontal and Implant Science
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    • 제38권sup2호
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    • pp.343-354
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    • 2008
  • Purpose: Aggregatibacter actinomycetemcomitans is associated with localized aggressive periodontitis. It produces cytolethal distending toxin (CDT), which induces cell cycle arrest in the G2/M phase. The CDT holotoxin is composed of CdtA, CdtB, and CdtC. CdtB has structural homology to human DNase I and is an active component of the CDT complex acting as a DNase. In particular, the pattern homology seen in the CdtB subunit has been associated with specific DNase I residues involved in enzyme catalysis, DNA binding, and metal ion binding. So, to study the functions and regulation of recombinant CdtB, we made up a quantity of functional recombinant CdtB and tested it in relation to the metal ion effect. Materials and Methods: We constructed the pET28a-cdtB plasmid from A. actinomycetemcomitans Y4 by genomic DNA PCR and expressed it in the BL21 (DE3) Escherichia coli system. We obtained the functional recombinant CdtB by the refolding system using the dialysis method and then analyzed the DNase activity and investigated the metal ion effect from plasmid digestion. Results: The recombinant CdtB subunit was expressed as the inclusion bodies. We were able to obtain functional recombinant CdtB subunit using refolding system. We confirmed that our refolded recombinant CdtB had DNase activity and was influenced by the metal ions $Mg^{2+}$ and $Ca^{2+}$. Conclusion: We suggest that the factors influencing recombinant CdtB may contribute to CDT associated diseases, such as periodontitis, endocarditic, meningitis, and osteomyelitis.

HOPF HYPERSURFACES OF THE HOMOGENEOUS NEARLY KÄHLER 𝕊3 × 𝕊3 SATISFYING CERTAIN COMMUTING CONDITIONS

  • Xiaomin, Chen;Yifan, Yang
    • 대한수학회보
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    • 제59권6호
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    • pp.1567-1594
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    • 2022
  • In this article, we first introduce the notion of commuting Ricci tensor and pseudo-anti commuting Ricci tensor for Hopf hypersurfaces in the homogeneous nearly Kähler 𝕊3 × 𝕊3 and prove that the mean curvature of hypersurface is constant under certain assumptions. Next, we prove the nonexistence of Ricci soliton on Hopf hypersurface with potential Reeb vector field, which improves a result of Hu et al. on the nonexistence of Einstein Hopf hypersurfaces in the homogeneous nearly Kähler 𝕊3 × 𝕊3.

Docking Studies on Formylchromone Derivatives as Protein Tyrosine Phosphatase 1B (PTP1B) Inhibitors

  • Kim, Chan-Kyung;Lee, Kyung-A;Zhang, Hui;Cho, Hyeong-Jin;Lee, Bon-Su
    • Bulletin of the Korean Chemical Society
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    • 제28권7호
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    • pp.1141-1150
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    • 2007
  • Molecular modeling study has been performed to assist in the design of PTP1B inhibitors using FlexX. FlexX dockings with 19 test ligands, whose structures have been determined by X-ray crystallography, were successful in reproducing the experimental conformations within the protein. An increase in biological activity is observed as hydrophobic character of formylchromone derivatives increases. Most ligands bind to the activesite regions of the protein successfully in two different score runs. The Drug score run gave better results than the FlexX score run based on the score, rank, binding modes and bond distance of docked structures. Consensus values from the CScore scoring function are between 3 and 5, suggesting that the scoring scheme is reliable. All formylchromone inhibitors considered in this work show unidirectional binding modes in the active site pocket, which is contrary to the bidirectional X-ray results by Malamas et al. and amino acid residues responsible for such orientation are identified to help further development of the inhibitors.

케이신의 유전적 변이체에 대한 최근 연구동향과 웹 사이트의 이용 (Current Research Trend of Genetic Variants of Bovine Casein and Application of The Web Site)

  • 전우민
    • Journal of Dairy Science and Biotechnology
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    • 제25권2호
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    • pp.11-16
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    • 2007
  • The nomenclature of genetic variants of casein which is major protein in milk have had a lot of confusion, but now have established. Genetic variants of ${\alpha}_{s1}-CN,\;{\alpha}_{s2}-CN,\;{\beta}-CN,\;{\kappa}-CN$ have reported 8 variants(A, B, C, D, E, F, G, H), 4 variants(A, B, C, D), 13 variants ($A_1,\;A_2,\;A_3,\;A_4$, B, C, D, E, F, G, $H_1,\;H_2$, I), 11 variants(A, B, C, E, $F_1,\;F_2,\;G_1,\;G_2$, H, I, J), respectively. Their data detailed have introduced in several web sites including www.uniprot.org. The studies on genetic variants of casein from Korean native cattle have been reported only ${\beta}-casein\;A_4$ but still not established the protein sequence. The classification and distinct nomenclature of genetic variants of bovine casein were required because the development of milk science and technology have been focused in the region that have to studied biochemically such as functional foods, EMC and GMO et al.

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Extracellular Overproduction of $\beta$-Cyclodextrin Glucanotransferase in a Recombinant E. coli Using Secretive Expression System

  • Lee, Kwang-Woo;Shin, Hyun-Dong;Lee, Yong-Hyun
    • Journal of Microbiology and Biotechnology
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    • 제12권5호
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    • pp.753-759
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    • 2002
  • $\beta$-Cyclodextrin glucanotransferase ($\beta$-CGTase) was overproduced extracellularly using recombinant E. coli by transforming the plasmid pECGT harboring a secretive signal peptide. The $\beta$-CGTase gene of alkalophilic Bacillus firmus var alkalophilus was inserted into the high expression vector pET20b(+) containing a secretive pelB signal peptide, and then transformed into E. coli BL2l(DE3)pLysS. The optimum culture conditions fer the overproduction of $\beta$-CGTase were determined to be TB medium containing 0.5% (w/v) soluble starch at post-induction temperature of $25^{\circ}C$. A significant amount of $\beta$-CGTase, up to 5.83 U/ml, which was nine times higher than that in the parent strain B. firmus var. alkalophilus, was overproduced in the extracellular compartment. A pH-stat fed-batch cultivation of the recombinant E. coli was also performed to achieve the secretive overproduction of $\beta$-CGTase at a high cell density, resulting in production of up to 21.6 U/ml of $\beta$-CGTase.

Biological Activities on Phenolic Compounds of Japanese anise (Illicium anisatum L) Extracts

  • Shinn, Seong-Whan
    • International Journal of Advanced Culture Technology
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    • 제7권3호
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    • pp.120-125
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    • 2019
  • In this paper, we have isolated six phenolic compounds, such as (+)-catechin (1), taxifolin (2), taxifolin-3-O-${\beta}$-D-(+)-xylose (3), quercetin (4), quercetin-3-O-${\alpha}$-L(+)-rhamnose (quercitrin) (5), apigenin-8-C-rhamnosyl-(1'''${\rightarrow}$2'')-glucoside (2''-O-rhamnosylvitexin) (6) from the EtOAc(Ethyl Acetate) and $H_2O$ soluble fractions of Japanese anise(Illicium anisatum L) leaves and twigs. Also, we have evaluated antioxidative and antiviral activity for each isolated compound. The antioxidative test was DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity. According to the experimental results, all of the isolated compounds indicated the increased radical scavenging activities as the concentration increases and most of the isolated compounds indicated generally good antioxidative values compare to the controls, ascorbic acid and ${\alpha}$-tocopherol. In the antiviral activities, all of the isolated compounds had no potentials in rhinovirus 1B (HRV 1B). But in enterovirus 71 (EV 71) and Influenza virus A/PR/8 (Influenza PR8), only quercetin (4) indicated the good antiviral activity compare to the control. Based on the above results, we found that the phenolic compounds of Japanese anise may be applied for one of the natural biomass sources that can be used as an antioxidant and an antiviral substance.

한국형 시판 도시락의 영양가 및 식염함량 (A Study on Nutritive Values and Salt Contents of Commercially Prepared Take-Out Boxed-Lunch In Korea)

  • Kim, Bok-Hee;Lee, Eun-Wha;Kim, Won-Kyung;Lee, Yoon-Na;Kwak, Chung-Shil;Mo, Sumi
    • Journal of Nutrition and Health
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    • 제24권3호
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    • pp.230-242
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    • 1991
  • 시판 도시락의 이용도가 크게 증가함에 따라, 시판 중인 한국형 도시락의 영양가와 염분량 등을 조사하고자 백화점, 체인점, 열차 등에서 10가지 종류의 도시락을 구입하였다. 영양가는 식품분석표에 의하여 계산하였고 염분은 원자흡광법에 의하여 Na 함량을 분석한 후 환산하였다. 도시락은 두가지를 제외하고는 모두 밥과 반찬이 따로 포장되어 있었고, 그 무게는 각각 304.6g, 312.4g으로 무거운 편이었다. 반찬의 수는 평균 12가지였는데 그중 단백질 식품이 6가지로 가장 많았고, 칼슘 식품은 3도시락에만 있었고 그것도 멸치 볶음 한기지였다. 열량은 평균 840.7kral로 남녀성인이 1끼 권장량보다 많았고, 단백질 38.9g, 지질 22.7g, 칼슘 300.8mg, 인 410.8mg, 철분 6.61mg, 비타민 A 219.8R.E., 티아민 0.46mg, 리보플라빈 0.67mg, 나이아신 10.5mg, 비타민 C 27.5mg으로 비타민 A만이 남녀성인 1끼 권장량에 약간 미달하였고, 다른 영양소들은 평균적으로 권장량이상 이었다. 또한 3000원 이상의 도시락은 2000원 이하의 도시락에 비해 동물성 식품이 많아서 단백질, 칼슘, 철, 나이아신이 유의적으로 더 많았다(P<0.05). 탄수화물, 단백질, 지질의 열량비율은 평균 57.4%, 18.3%, 24.3%로 양호하였다. 조리법은 전(22.3%)과 튀김(16.0%)이 가장 많았고 조림, 구이, 볶음 등 건식 조리법이 주로 이용되어 많은 반찬가짓수에 비해, 실제 식단은 단조로운 편이었다. 염분의 함량은 3.53g에서 8.80g으로 평균 5.76g이나 되어, 한끼 필요량을 크게 초과하고 있었다. 앞으로 도시락의 염분함량을 줄이는 동시에 다양한 조리법과 식단으로 맛있고 보기좋고 영양적으로 균형잡힌 도시락 식단을 개발하는 데 노력을 기울여야 하겠다.에 세계적 기술 경쟁력도 확보할 수 있을 것이다. 본 해설에서는 로봇 및 시스템 제어에 관한 기초 이론과 신경회로 적용기술을 소개하고 기존방법과 비교했을 때의 우월성, 전세계적인 응용연구, 국내외 연구개발 현황, 상업화 가능성, 산업계 응용례, 기술상의 문제점, 향후 전망 등을 다루기로 한다.중에 의한 천이 구조응답 해석을 위한 효과적인 방법에 대해서도 연구결과를 발표할 계획이다.이 무거울수록 우화율이 높은 편이었다. 이앙시기별 월동유충에서 우화시기까지의 기간은 조기이앙답이 44일, 중기이앙답이 47일, 후기 이앙답이 51일간으로 늦게 이앙할수록 기간이 더 긴 경향이었다.-35.6dB였다. 또, 50kHz에서 말쥐치, 민어, 노래미, 넙치에 대한 그 값은 각각 -37.2dB, -37.3dB, -31.9dB, -36.0dB였다. 한편, 어체의 평균반사강도의 추정정도는 자원량추정치의 신뢰도를 좌우하는 직접적인 요인이 되므로, 앞으로 이 문제에 대해서는 보다 체계적인 연구가 필요하다고 판단된다. 그물베도라치 Dictyosoma burgeri Van der Hoeven 및 황점 베도라치Dictyosoma wbrimaculata Yatsu, Yasuda et Taki, 그리고 황줄베도라치란 Pholididae의 황줄베도라치 Phoris taczanowskii(Steindachner), 오색베도라치 Phoris omotus (Girad), 베도라치 Pholis nebuloso(Temminck et Schlegel), 횐베도라치 Pholisfangi(Wang et Wang) 및 점베도라치 Pholis crossispino(Temminck et Schlegel)의 17속 25종이 분류되었다. 이중에서 Zoarchias glaber, Chirofophis oui, Alectrias benjamini, Dictyosoma

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재가 뇌졸중 환자의 일상활동 수행능력, 우울, 자기효능감 및 삶의 질과의 관계 (A Study on Stroke Patients' ADL, Depression, Self-Efficacy and Quality of Life)

  • 조복희;고미혜;김순영
    • 재활간호학회지
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    • 제6권1호
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    • pp.51-60
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    • 2003
  • This study was a descriptive research in search of a nursing intervention scheme to improve stroke patients' quality of life by understanding the relationship of stroke patients' ADL, depression, self-efficacy and quality of life with various variables and identifying factors that affect their quality of life. Each subject was interviewed one to one based on a structured questionnaire. With regard to research tools, Modified Barthel Index (MBI: Fortinsky et al., 1981), which was translated by Choi, Hye-sook (1996), was used in measuring ADL, Randloff's (1977) tool, which was translated by Choi, Soon-hee, was used in measuring depression, and the tool developed by Sherer et al. (1982), which is to measures self-efficacy under general conditions not limited to specific conditions, and modified by O, Bok-ja (1994) was used in measuring self-efficacy. The quality of life was measured using the scale of satisfaction of life developed by Diener et al. (1985). The results of this study were as follows: 1. The means of ADL of the subjects was $79.5{\pm}31.9$, depression $26.8{\pm}10.4$, self-efficacy $47.1{\pm}25.7$, and the quality of life $12.3{\pm}4.9$. 2. The subjects' quality of life showed a statistically significant difference according to gender (t=7.9, p= .006), satisfaction with income (F=5.8, p= .004), the burden of medical fee (F=3.7, p= .028) and the period of disease (F=2.8, p= .042). 3. With regard to relationship among ADL, depression, self-efficacy and the quality of life, ADL was in a relatively low positive correlation (r= .293, p= .003) with and the quality of life, depression in a high negative correlation (r=- .634, p= .000) with the quality of life, and self-efficacy in a positive correlation with the quality of life (r= .388, p= .000). 4. Factors that made a significant influence on the quality of life were depression (B=- .309, p= .001) and satisfaction with income (B=-2.611, p= .001). Based on these results, this study made following suggestions: 1. It is necessary to run rehabilitation programs to improve stroke patients' ADL, depression and self-efficacy. 2. It is necessary to perform research of monitoring stroke patients' quality of life in various areas using measuring tools.

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