• 제목/요약/키워드: Chon

검색결과 3,040건 처리시간 0.034초

Soybean Trypsin Inhibitor와 황산 콘드로이친 포합체의 약리 효과 평가 (Evaluation of Pharmacological Effect of Soybean Trypsin Inhibitor-Chondroitin Sulfate Conjugates)

  • 최윤림;남현규;신영희
    • Journal of Pharmaceutical Investigation
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    • 제30권3호
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    • pp.159-166
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    • 2000
  • Kunitz-type soybean trypsin inhibitor (SBTI) and chondroitin sulfate (A, and C type) were conjugated using sodium periodate method. And the physicochemical, pharmacokinetic properties and immunogenecity of the conjugates (Chon-A-SBTI or Chon-C-SBTI) were characterized. We expected the conjugation using chondroitin sulfate to reduce the immunogenecity and to improve the pharmacological effect. As the results, the mean molecular weight of the conjugate highly increased. After I.V. injection of the radiolabeled conjugates or native SBTI into mice, it was found that native SBTI showed rapid elimination from plasma, whereas Chon-A-SBTI and Chon-C-SBTI were slowly eliminated. Organ distribution of the two agents at 30 min after I.V. injection was different : Chon-A-SBTI or Chon-C-SBTI accumulated to a large extent in the liver (13% in Chon-A-SBTI and 16% in Chon-C-SBTI), whereas native SBTI was taken up more rapidly by the kidney (107% dose/g of tissue) and excreated into the urine (26%). In addition we evaluated the therapeutic value of the conjugates by using the sublethal septic shock model caused by pseudomonal elastase and tested the immunogenecity by passive cutaneous anaphylaxis shock (PCA). The conjugates were more effective than native SBTI against pseudomonal elastase induced septic shock in guinea pig. In case of the conjugates, the pharmacological and therapeutic effect lasted over 3 hours long. In immunogenecity test, both of the conjugates showed the reduction of their immunogenecity, especially Chon-A-SBTI looked most effective.

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Effects of Vibrio vulnificus cytolysin on platelet aggregation and lysis

  • Kim, Hyun-Chul;Chae, Soo-Wan;Park, Jin-Bong;Park, Kyu--Cho
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1997년도 학술발표회
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    • pp.34-34
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    • 1997
  • Vibrio vulnificus is an estuarine bacterium that has been associated with septicemia and serious wound infection in person. Cytolysin has been incriminated as one of the important virulence determinants. Little is known about the target cell of Vibrio vulnificus cytolysin in the body. Recently, we observed cytolysin-induced blood coagulation in rat.(omitted)

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대화형 웨이터 로봇에 대한 연구 (Research on Interactive Waiter Robots)

  • 강건우;안찬빈;조건;신경민
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2023년도 추계학술발표대회
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    • pp.836-837
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    • 2023
  • 정보서비스와 업무의 무인·자동화를 통해 대중들이 쉽게 이용할 수 있도록 공공장소에 설치한 무인단말기를 말한다. 그러나 현재의 키오스크는 정보의 방대함과 선택의 다양성으로 어렵고 복잡하다. 이러한 키오스크 사용상 단점을 극복하기 위하여 AI 기반 대화형 인터페이스 웨이터 로봇을 개발하였다.

국내산 당근 품종별 carotenoid 함량 분석 (Quantitative Analysis of Carotenoids in Carrot Cultivars Produced in Korea)

  • 하정림;배종섭;박문기;김용웅;하선화;배정명;백경환;이철호;이신우;안미정
    • 한국환경과학회지
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    • 제18권10호
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    • pp.1135-1141
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    • 2009
  • Carrots (Daucus carota L.) are consumed as an important dietary source of provitamin A including $\beta$-carotene, $\alpha$-carotene and lutein. An HPLC method was applied to determine the content of the carotenoid composition in carrot cutivars cultivated in Korea. HPLC analyses were carried out with five carrot cultivars (Socheon-5-chon, Hongsim-5-chon, Myeongju-5-chon, Seonhongbom-5-chon and Betarich) sown at April, 2007 and six cultivars (Yeoreum-5-chon, Hanyeoreum-5-chon, Sinheukjeon-5-chon, Bibariheukjeon, Manina and Betarich) sown at August of the same year. In general, the former varieties are not used for the sowing at summer because of their bolting (growth of floral axis). The former and the latter carrots were harvested after 110 and 96 days from seeding, respectively, and the carotenoids were extracted with acetone after freeze-drying. The amount of $\alpha$-carotene ($117.7{\sim}205.3\;{\mu}g/g{\cdot}DW$) was similar to that of $\beta$-carotene ($113.1{\sim}189.6\;{\mu}g/g{\cdot}DW$) for the carrot cultivars sown at spring, while the content ($46.2{\sim}71.1\;{\mu}g/g{\cdot}DW$) was about a half of $\beta$-carotene content ($92.5{\sim}140.2\;{\mu}g/g{\cdot}DW$) for the latter cultivars. In addition, the average content of lutein ($25.2\;{\mu}g/g{\cdot}DW$) in the former cultivars was eight times higher than that in the latter cultivars ($3.1\;{\mu}g/g{\cdot}DW$). Among the spring cultivation types, Socheon-5-chon and Myeongju-5-chon showed higher amount of $\alpha$-carotene and $\beta$-carotene, while the higher amount was determined in Yeoreum-5-chon and Sinheukjeon-5-chon among the autumn cultivation types. Validation of the HPLC-DAD method showed good linearity ($r^2$ > 0.997) of the three compounds analyzed in a wide concentration range ($0.025{\sim}20\;{\mu}g/ml$). The R.S.D. values for intra-day and inter-day precision were less than 19.2% and the mean recovery of each compound was 85.4~104.7%.

구침(九鍼)의 형태와 용도에 대한 문헌연구 (Literature Study on the Conformation and Application of Nine Classical Needles)

  • 손인철;권오상;김유리;안성훈;김재효
    • Korean Journal of Acupuncture
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    • 제28권1호
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    • pp.157-169
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    • 2011
  • Objective : Nine classical needles have been recorded in oriental medical classics as a diversified instrument for acupuncture to treat patients with various symptoms. Recently, it has suggested that doctors didn't make full use of acupuncture and that poor understanding of the nine needles has caused the lack of usage. Methods : It has studied bibliographically about the conformation including a length & shape and application & usages of the nine classical needles presented in oriental medical classics. Results : Chamchim (shear needle) has 1.6 chon (寸) length, sharp apex treating fever in the head and trunk; Wonchim (roun-pointed needle) has 1.6 chon, eggshaped apex treating disease of flesh by massaging with it; Sichim (spoon needle) has 3.5 chon, thick body with round sharp apex treating weakness of Qi; Bongchim (lance needle) has 1.6 chon, a triangled apex treating chronic disease with bleeding; Pichim (stiletto needle) has 4 chon, razor sharp applying to surgery of big pus; Wonlichim (round-sharp needle) has 1.6 chon, thin body, sharp apex treating acute arthralgia syndromes; Hochim (filiform needle) has various lengths which treats various disease of meridians and organs; Jangchim (long needle) has 7 chon, sharp apex treating chronic arthralgia syndromes in deeper place of body; Daechim (large needle) has 4 chon, nail like apex applying to excrete artheredema in joints. Conclusions : The conformation of nine classical needles has been changed from those recorded in oriental medical classics since it was developed. However, the usage of nine classical needles has remained the same. Therefore it is considered that intrinsic attribute of the nine needles has preserved even though the conformation of nine classical needles has changed.

서울대 광양연습림내 토양 미소 절지동물에 관한 연구 - 4. 토양 미소 절지동물과 서식환경과의 관계 (Soil Microarthropods at the Kwangyang Experiment Plantation (4. Diversity of Soil Microarthropods in Relation to Environmental Factors))

  • Kwak, Joon-Soo;Park, Joung-Sik;Park, Nou-Poung;Park, Seong-Sik;Kim, Tae-Heung;Kim, Tae-Young
    • The Korean Journal of Ecology
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    • 제12권3호
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    • pp.203-208
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    • 1989
  • This study was objected to figure out the soil microarthropod fauna in forests with different flora, and to elucidate how environmental factors affect the diversity of soil microarthropods. Relationships between the distribution density of soil microarthropods and environmental factors were correlated positively with organic matter and C/N ratio. By the calculation of the contribution coefficients, organic matter, amount of precipitation, C/N ratio, and soil moisture were found to be major environmental factors that affect the distribution of soil microarthropods.

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