• 제목/요약/키워드: biochemical activity

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산지별 고초균 발효누에의 이화학적 특성 및 생리활성 (Biological Activity and Biochemical Properties of Water Extracts from Bacillus subtilis-fermented Silkworm (Bombyx mori L.) Powder by Origin)

  • 김태훈;안희영;김영완;심소연;서권일;조영수
    • 생명과학회지
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    • 제27권12호
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    • pp.1470-1478
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    • 2017
  • 본 연구는 건강기능성 식품의 소재로서 활용하기 위해 부안, 남원 및 보은의 산지별 누에분말을 단백질 분해능이 뛰어난 Bacillus subtilis KACC 91157 균주로 발효시켜 제조한 발효누에 추출물의 이화학적 특성 및 생리활성을 평가하였다. 구성 아미노산 함량은 부안 누에군(BU)에서 가장 높았으나, 발효 후에는 보은 발효누에군(BBO)에서 가장 높은 함량을 보였다. 미네랄 함량은 K, Ca, Mg 순으로 함유되어 있었으나, Na가 가장 높은 미네랄 함량의 증가율을 보였다. DPPH를 통한 자유라디칼 소거능과 혈전용해 효소활성은 발효 전에 비하여 발효누에군에서 높게 나타났으며, 특히 BBO군에서 가장 높은 활성을 보였다. 전립선암 세포(LNcaP)와 유방암 세포(MCF-7) 성장 저해능은 BBO군에서 가장 높게 나타났으며 LPS 처리 RAW 264.7세포의 NO생성 억제활성 역시 BBO군에서 가장 높게 나타났다. 이와 같이 산지별 고초균 발효누에 추출물을 비교해본 결과 보은 누에가 건강기능성 식품의 소재로서 활용할 가치가 높은 것으로 사료된다.

THE EFFECT OF BISPHENOL A ON THE THYROID HORMONE SYSTEM FOR THE ESTABLISHMENT OF SCREENING METHOD OF ENDOCRINE DISRUPTORS

  • Cho, Mi-Young;Lim, Myung-Sin;Lee, Young-Choi;Jung, Ki-Kyung;Nam, Kyung-Tak;Kim, Tae-Gyun;Kang, Ju-Hye;Kang, Seog-Youn;Kim, Seung-Hee
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Molecular and Cellular Response to Toxic Substances
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    • pp.162-162
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    • 2002
  • There has been many findings of natural, environmental or manufactered nonsteroidal substances shown to have estrogenic activity. Since estrogens affect reproduction and cellular development to cause disease in people or animals, chronic exposure may have a major impact on health.(omitted)

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Transforming growth factor ${\beta}_1$이 배양랫트 신경교세포의 성장 및 생화학적 변화에 미치는 영향 (Effects of TGF ${\beta}_1$ on the Growth and Biochemical Changes in Cultured Rat Glial Cells)

  • 김용식;윤용하;박난향;박찬웅
    • 대한약리학회지
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    • 제30권2호
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    • pp.167-179
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    • 1994
  • Recent evidence indicates that glial cells have a wide range of funtions which are critical for maintaining a balanced homeostatic environment in the central nervous system(CNS) peripheral nervous system(PNS). Morever, astrocytes are known to participate in the tissue repair and neuroimmunologic events within the CNS through many kinds of growth factors and cytokines. We investigated the effect of $TGF\;{\beta}_1$, on the growth and biochemical changes of rat glial cells in culture. The proliferative effect was determined by $^3H-thymidine$ uptake and the double immunostain with anti-cell-specific marker and anti-Bromodeoxyuridine(BrdU) antibody. To check the effect of biochemical changes we compared the amounts of glial fibrillar acidic protein(GFAP) and the activity of glutamine synthetase(GS) in astrocyte. And the amounts of myelin basic protein and the activity of 2',3'-cyclic nucleotide phosphohydrolase(CNPase) were measured in oligodendrocyte and the amounts of peripheral myelin in Schwann cell. When $TGF\;{\beta}_1$, was treated for 2 days with cultured glial cell, $TGF\;{\beta}_1$, decreased the $^3H-thymidine$ uptake and proliferation index of double immunostain of astrocytes, which indicates the inhibition of astroglial DNA synthesis, but stimulated the growth of Schwann cell. Also, $TGF\;{\beta}_1$, decrease the GS activity and increased the amounts of GFAP in astrocyte. In the case of Schwann cells the amounts of peripheral myelin was increased when treated with $TGF\;{\beta}_1$. However, $TGF\;{\beta}_1$, didn't show any effect on the proliferation and biochemical changes in oligodendrocyte. These results suggest that $TGF\;{\beta}_1$, might have a critical action in the regulation of proliferation and biochemical changes in glial cells, especially astrocyte.

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Developing a pharmacophore model for nonpeptide bradykinin antagonists

  • Park, Hae-Young;Choi, Su-Young;Lee, Su-Jin;Koh, Hune-Yeong;Pae, Ae-Nim
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.176.1-176.1
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    • 2003
  • Bradykinin is an autocoid related to acute and chronic pain and inflammation. The non-peptide bradykinin antagonists are of interest as novel anti-inflammatory therapeutics. To understand the structural basis for the bradykinin antagonistic activity and to guide the design of more potent compounds we analysed the three dimensional pharmacophore model. Seven active compounds very recently reported such as FR 167344, FR 173657, LF 160687, and bradyzide were used as our pharmacophore model analysis. (omitted)

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Hepatoprotective activity of methanol extracts of Glinus oppositifolius and Trianthema decandra against paracetamol induced liver damage

  • Gupta, M;Mazumder, UK;Haldar, PK;Manikandan, L;Senthilkumar, GP;Kandar, CC
    • Advances in Traditional Medicine
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    • 제7권1호
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    • pp.74-78
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    • 2007
  • The plants, Trianthema decandra and Glinus oppositifolius are commonly used by tribal people in India for the treatment of liver diseases. Hepatoprotective activity of methanol extracts of Glinus oppositifolius and Trianthema decandra at the dose of 250 and 500 mg/kg body weight administered orally was evaluated against paracetamol induced liver damage in rats. Biochemical parameters such as serum glutamate oxaloacetate transaminase, serum glutamate pyruvate transaminase, serum alkaline phosphatase, bilirubin, total serum protein, lipid peroxide and glutathione content of the liver were estimated to determine liver function and metabolism. From the biochemical observations, it was concluded that methanol extracts of Glinus oppositifolius and Trianthema decandra significantly restored the altered biochemical parameters towards normal condition in paracetamol induced liver damage.

Ficus racemosa Affords Antihepatotoxic Activity Against Paracetamol-Induced Acute Liver Damage in Rats

  • Mandal, Subhash C.;Maity, Tapan K.;Das, J.;Saha, B.P.;Pal, M.
    • Natural Product Sciences
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    • 제4권3호
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    • pp.174-179
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    • 1998
  • The effect of oral treatment with Ficus racemosa leaf extract (400 mg/kg for seven days) were studied on hepatic damage induced by paracetamol (750 mg/kg, i.p.) in rats. Biochemical parameter like SGOT, SGPT, serum bilirubin and alkaline phosphatase were estimated to assess liver function. These biochemical observations were supplemented by histopathological examination of liver sections. The activity of extract was also comparable to Neutrosec a known hepatoprotective formulation.

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다시마 열수추출물의 성분 및 항산화활성 측정 (Contents of Water Extract for Laminaria japonica and its Antioxidant Activity)

  • 김윤수;강창오;김미혜;차월석;신현재
    • KSBB Journal
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    • 제26권2호
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    • pp.112-118
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    • 2011
  • Contents of amino acids, vitamins, and minerals as well as its antioxidant activitiy of Laminaria japonica water extract have been analyzed for preparation of functional foods and cosmetic products. From the analysis of total amino acids, eighteen kinds of amino acids were found in the water extract of Laminaria japonica. Among total amino acids, the order of contents was glutamic acid (2.07 mg/g), alanine (0.51 mg/g), aspartic acid (0.44 mg/g), glycine (0.34 mg/g), and valine (0.34 mg/g). In case of free amino acids, glutamic acid (0.95 mg/g), prolin (0.54 mg/g), aspartic acid (0.44 mg/g), leucine (0.07 mg/g), and phenylalanine (0.07 mg/g) were dominant compositions. Vitamin E was only detected in water extract of Laminaria japonica. The mineral contents were as follows: K 752.60 mg, Na 259.20 mg, Ca 80.20 mg, P 29.50 mg, and Fe 8.32 mg based on 100 g Laminaria japonica water extract. The nitrite scavenging activity of the extract were gradually increased with the extracts contents to 86.2% at concentration of 100 mg/mL and DPPH radical scavenging activity of the extracts were 86.4% at concentration of 50 mg/mL.

Tolerance of Anaerobic Granular Sludge to Oxygen

  • Shiru Jia;Benyi Xiao;Choi, Du-Bok;Cho, Ki-An;Kim, Young-Sik
    • 환경생물
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    • 제21권4호
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    • pp.405-409
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    • 2003
  • To study the tolerant capacity of anaerobic granular sludge (AGS) to oxygen using semi -dynamic batch experiment, the aerating time, pH of the basal media, reductive inorganic materials, microorganism, and microorganism metabolite were investigated. When the aerating time was higher or lower than 0.5 h, the producing gas activity of sludge was lower than that of the control. The oxygen tolerance of the experimental sludge was the highest at the initial pH 7.2. The producing gas activity of sludge I was higher than that of sludge II. And storage at $4^{\circ}C$ can low the lose of the oxygen tolerance capacity of granular sludge. The producing gas activity of sludge was the highest when KI was added. The growth of aerobic microorganisms and some metabolite could increase the producing gas activity of granular sludge.

노인 당뇨병환자의 신체활동량과 생화학적 변수들과의 관계 (Relationship of Daily Activity and Biochemical Variables in the Elderly with Diabetes Mellitus)

  • 성기월
    • 대한간호학회지
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    • 제41권2호
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    • pp.182-190
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    • 2011
  • Purpose: This study was done to identify correlates and variables predicting daily activity among elders with Diabetes Mellitus (DM). Methods: Seventy-six elders registered in the Department of Endocrine Medicine at C university hospital participated in data collection. Data on daily activity and biochemical variables were collected via actigraph accelerator (Actical) and blood tests between September 2009 and July 2010. Data analysis was done using SPSS WIN 15.0 program and included one-way ANOVA, independent t-test, Pearson correlation coefficients, and stepwise multiple regression. Results: This study showed a positive correlation between daily activity and High Density Lipoprotein Cholesterol (HDL-C) and a negative correlation among Total Cholesterol (TC), Triglyceride (TG), and Low Density Lipoprotein Cholesterol (LDL-C). The variables predicting daily activity were frequency of exercise, HDL-C, and TC. These factors accounted for 40.0% of the variance of daily activity in elders with DM. Conclusion: The results indicate that it is necessary to improve daily activity to reduce Fasting Blood Glucose (FBG), TC, and TG in elders with DM.

Characterization of Two Self-Sufficient Monooxygenases, CYP102A15 and CYP102A170, as Long-Chain Fatty Acid Hydroxylases

  • Rimal, Hemraj;Lee, Woo-Haeng;Kim, Ki-Hwa;Park, Hyun;Oh, Tae-Jin
    • Journal of Microbiology and Biotechnology
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    • 제30권5호
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    • pp.777-784
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    • 2020
  • Self-sufficient P450s, due to their fused nature, are the most effective tools for electron transfer to activate C-H bonds. They catalyze the oxygenation of fatty acids at different omega positions. Here, two new, self-sufficient cytochrome P450s, named 'CYP102A15 and CYP102A170,' from polar Bacillus sp. PAMC 25034 and Paenibacillus sp. PAMC 22724,respectively, were cloned and expressed in E. coli. The genes are homologues of CYP102A1 from Bacillus megaterium. They catalyzed the hydroxylation of both saturated and unsaturated fatty acids ranging in length from C12-C20, with a moderately diverse profile compared to other members of the CYP102A subfamily. CYP102A15 exhibited the highest activity toward linoleic acid with Km 15.3 μM, and CYP102A170 showed higher activity toward myristic acid with Km 17.4 μM. CYP10A170 also hydroxylated the Eicosapentaenoic acid at ω-1 position only. Various kinetic parameters of both monooxygenases were also determined.