• 제목/요약/키워드: P242

검색결과 594건 처리시간 0.026초

Antidiabetic activity of Diospyros malabarica Kostel bark: a preliminary investigation for possible mode of action

  • Mondal, Susanta Kumar;Chakraborty, Goutam;Bhaumik, Uttam Kumar;Gupta, Malaya;Mazumder, Upal Kanti
    • Advances in Traditional Medicine
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    • 제8권3호
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    • pp.236-242
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    • 2008
  • The defatted methanol extract of bark of Diospyros malabarica (DM) at doses of 200 and 400 mg/kg, p.o. showed significant hypoglycemic activity on normal rats. The extract also exerted significant antihyperglycemic effect in alloxan-induced hyperglycemia and resulted in increase in plasma protein content and decrease in alkaline phosphatase, cholesterol and triglyceride levels when compared with those in the diabetic control group. However there were no significant changes in body and kidney weights of the DM extract-treated animals, compared to those of the untreated diabetic rats as a control. However, the DM extract showed a potential antioxidant activity by increasing catalase activity and reducing lipid peroxidation in liver. The results demonstrate antidiabetic activity of the defatted methanol extract of DM bark.

Stabilization of Bioluminescence of Immobilized Photobacterium phosphoreum and Monitoring of Environmental Pollutants

  • Britz, Margaret L.;Nina Simonov;Chun, Uck-Han
    • Journal of Microbiology and Biotechnology
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    • 제7권4호
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    • pp.242-249
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    • 1997
  • Stability of bioluminescence was investigated with Photobacterium phosphoreum immobilized on the strontium alginate in order to develope continuous real time monitoring of pollutants. The stability of bioluminescence emission was improved by prolonged aging time. The aging time of ${\geq}40$ min and the cell concentration of ${\leq}0.6\;of\;OD_660$ were selected for the immobilization of P. phosphoreum to give linearity between cell concentrations and bioluminescence intensity. In sensitivity tests using phenol, it was found that this compound quenched bioluminescence proportional to the concentration without lowering of cell growth. The lower value for maximum quenching ($q_s$) and higher dissociation constant ($K_s$) were observed with strontium-alginate immobilized cells compared to free cells. The response of bioluminescence to toxicants was evaluated with the immobilized luminescent bacteria. The sensitivity of the immobilized cells was found to be good in response to toxicants, 4-nitrophenol, salicylate and cadmium, when evaluated with a specific rate of bioluminescence quenching.

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Phosphatidylinositol 3-Kinase Regulates Nuclear Translocation of NF-E2-Related Factor 2 through Actin Rearrangement in Response to Oxidative Stress

  • Kang, Keon-Wook;Lee, Seung-Jin;Park, Jeong-Weon;Kim, Sang-Geon
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.241.3-242
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    • 2002
  • Expression of phase II detoxifying genes is regulated by NF-E2-related factor 2 (Nrf2)-mediated antioxidant response element (ARE) activation. Phosphatidylinositol 3-kinase (PI3-kinase) plays an essential role in ARE-mediated rGSTA2 induction by oxidative stress and controls microfilaments and translocation of actin-associated proteins. This study was designed to investigate the P13-kinase-mediated nuclear translocation of Nrf2 and the interaction of Nrf2 with actin. (omitted)

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Checklist of Hymenomycetes (Aphyllophorales s.l.) and Heterobasidiomycetes in Israel

  • Tura, Daniel;Zmitrovich, Ivan V.;Wasser, Solomon P.;Nevo, Eviatar
    • Mycobiology
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    • 제38권4호
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    • pp.256-273
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    • 2010
  • A checklist is presented concerning the species composition of Hymenomycetes (Aphyllophorales s.l.) and Heterobasidiomycetes in Israel based on data of previous studies and field sample collections. In total, 242 species are presented, of which five are new records for the Israeli mycobiota, namely Australohydnum dregeanum, Ceriporiopsis consobrina, C. resinascens, Fibroporia vaillantii, and Postia inocybe. The distribution and habitat of each species in Israel are also summarized. This checklist will serve as valuable data for future species diversity studies of these fungi in Israel.

급성상기도감염 항생제 처방률 공개 효과 분석 (The Effect of Public Report on Antibiotics Prescribing Rate)

  • 김수경;김희은;백미숙;이숙향
    • 한국임상약학회지
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    • 제20권3호
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    • pp.242-247
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    • 2010
  • Controlling inappropriate antibiotics prescribing for acute upper respiratory infections(URI) is a very important for prudent use of antibiotics and resistance control. Health Insurance Review and Assessment Service (HIRA) introduced Prescribing Evaluation Program and publicly reported antibiotics prescribing rate for URI of each health institution. We performed segmented regression analysis of interrupted time series to estimate the effect of public report on antibiotics prescribing rate using national health insurance claims data. The results indicate that just before the public report period, clinics' monthly antibiotics prescribing rate for URI was 66.7%. Right after the public report, the estimated antibiotics prescribing rate dropped abruptly by 12.3%p. There was no significant changes in month-to-month trend in the prescribing rate before and after the intervention.

Selective N+ 버퍼층을 갖는 latch up 억제를 위한 새로운 IGBT 구조 (A new IGBT structure for suppression of latch up with selective N+ buffer layer)

  • 김두영;이병훈;최연익;한민구
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1993년도 정기총회 및 추계학술대회 논문집 학회본부
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    • pp.240-242
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    • 1993
  • A novel structure, which can suppress latch-up phenomena, is proposed and verified by the PISCESIIB simulation. It is shown that this structure employing the selective N+ buffer layer increases latch-up current density due to suppression of the current flowing through the p-body. The width of the N+ buffer layer is optimized considering the trade-off between the latch-up current density and the forward voltage drop. The selective buffer layer results in an improved trade-off relationship compared with the uniform buffer layer.

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Rapid Purification of Recombinant Human Lipocortin-I Secreted from Saccharomyces cerevisiae

  • Chung, Bong-Hyun;Nam, Soo-Wan
    • Biotechnology and Bioprocess Engineering:BBE
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    • 제5권4호
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    • pp.242-246
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    • 2000
  • Human lipocortin-I was expressed as a secretory product by Saccharomyces cerevisiae harboring an expression system consisting of GAL10 promoter, inulinase signal sequence and lipocortin-I terminator. Fed-batch fermentation was carried out to overproduce recombinant human lipocortin-I. The culture medium was desalted and concentrated by ultrafiltration, and then subjected to hydroxyapatite column chromatography. The lipocortin-I was purified to >98% purity by single-step hydroxyapatite column chromato-graphy. However, it was found that the purified lipocortin-I was a proteolytically-cleaved form which was cleaved immediately after the basic amino acid Lys26.

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풍력터빈 나셀 냉각시스템의 급.배기 위치 평가 (Estimation on locations of air-supply and exhaust ports in the nacelle of wind turbine)

  • 우상우;김현태;이진형;이기학;박종포
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2011년 춘계학술대회논문집
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    • pp.240-242
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    • 2011
  • Wind power system is generally divided into the onshore wind turbine and the offshore wind turbine according to site locations. The offshore wind turbine is manufactured as a closed nacelle cooling system including a heat exchanger to prevent corrosion, but the onshore wind turbine is manufactured as open nacelle cooling system dependent on only the outdoor air without a heat exchanger. The indoor of a nacelle which is composed of a generator, foil power converters and a gearbox with a lot of heat is very narrow and airtight. This aim of the study is to demonstrate the temperature effect depending on positions of air-supply and exhaust ports. And this study discusses the flow field and removal efficiency of heat caused by components.

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노인요양병원 간호사의 섬망에 대한 지식, 섬망간호스트레스 및 섬망간호수행간의 관계 (Relationship between Knowledge, Stress, and Nursing Performance about Care for Delirium in Geriatric Hospital Nurses)

  • 김은희
    • 한국임상보건과학회지
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    • 제4권2호
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    • pp.593-602
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    • 2016
  • Purpose. The purpose of this study was to investigate knowledge, stress and nursing performance about care for delirium in geriatric hospital nurses. Methods. For this study, data were collected from 242 nurses employed at geriatric hospitals with the capacity of more than 100 beds which were located in A, P and Y cites. Frequency analysis, t-test and one-way ANOVA were utilized to analyze the data and Scheffe test was used to conduct post-hoc tests. Results. Nurses showed significant differences in the level of Knowledge, as well as terminal care performance by marital status, nursing experience. A significant relationship was found between knowledge, stress and Delirium care performance. Conclusion. This study found nurses perform delirium care with a high level of stress but with insuffiecient understanding, and thus, showed great needs for related training. Such findings can be useful to develop educational programs to improve knowledge on delirium and plans to reduce stress from delirium for geriatric hospital nurses.

Dental caries suppression effect of highly branched and modified oligosaccharides

  • 서은성;박현정;김지희;이기영;김도만
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2002년도 생물공학의 동향 (X)
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    • pp.239-242
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    • 2002
  • We have synthesized branched oligosaccharides (BOS) by the mixed-culture fermentation (MBOS), fructosyltransferase (FBOS) or glucosyltransferase (GBOS) with high concentration of sucrose (3M). MBOS was further modified as iron and sulfate-oligosaccharides. The modified MBOS were stable at high temperatures (up to $140^{\circ}C$) and low pHs (2 to 4). Most highly branched and modified oligosaccharide (0.34%, w/v) effectively inhibited fructose release from sucrose by Streptococcus mutans 6715 mutansucrase. FBOS, GBOS, iron-MBOS inhibited the mutansucrase activities from Streptococcus sobrinus about 46.8%, 49.2% and 43.1%, respectively. Most highly branched and modified oligo- saccharides (0.5%, w/v) effectively inhibited the fonnation of insoluble glucan and adherence of S. mutans or S. sobrinus cell in the presence of sucrose. Modified oligosaccharides affected the growth and acid production of oral pathogens. Cytotoxicity test showed that highly branched and modified oligosaccharides was non-toxic.

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