• Title/Summary/Keyword: plant physiology

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Screening for Biological Activity of Crude Extract and Bioactive Fractions from Brachyglottis monroi

  • Baek Seung Hwa;Lim Jin A;Kwag Jung Sook;Lee Hyun Ok;Chun Hyun Ja;Lee Jeong Ho;Perry Nigel B.
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.3
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    • pp.826-828
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    • 2003
  • The effects of crude extract and bioactive fractions from Brachyglottis monroi on biological activity were investigated. The crude ethanol extract inhibited the growth of the Gram positive bacterium Bacillus subtilis (ATCC Strain number 19659, 1 mm zone at 150 μg/disk) and the dermatophyte Trichophyton mentagrophytes (ATCC 28185, 2 mm zone at 150 μg/disk), and toxic to P388 tumor cells (IC50 23.96 μg/ml at 75 μg/disk). Cytotoxic activity was strongly showed by Fr. 6 (P388 IC50 19.67 μg/ml at 75 μg/disk).

Isolation and Culture Conditions of Hydrogen-producing Bacterium from Sewage Sludge (하수슬러지에서 수소생산 균주의 분리 및 배양조건)

  • Woo, Dae-Sik;Joo, Hyun;Lee, Jae-Hwa
    • Applied Chemistry for Engineering
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    • v.24 no.4
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    • pp.407-411
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    • 2013
  • Hydrogen producing bacterium, strain AS12 was isolated from the sludge of the anaerobic wastewater treatment process of south sewage treatment plant, Busan city. Phylogenetic analysis based on 16S rRNA sequence studies indicated that AS12 belonged to the genus Escherichia coli sp.. The optimum temperature and pH for hydrogen production were $35^{\circ}C$ and 8.0, respectively. The impact of the types and concentrations of carbon and nitrogen sources in the media on hydrogen production was investigated. The optimum carbon and nitrogen concentrations were 10 g/L of galactose and 5 g/L of peptone, respectively.

Effect of the Geijibokryunghwan Water Extracts on Stimulus-induced Superoxide Generation and Tyrosyl Phosphorylation in Human Neutrophils

  • Choi, Meung-Hee;Park, Won-Han
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.2
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    • pp.477-481
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    • 2006
  • A clinical report indicates that 'Geijibokryunghwan(GBH) is very effective in treating thrombosis in those patients who have difficulties with more conventional antithrombotic drugs. The isolation and identification of various compounds from this plant and the same genus have been reported by several groups. However, the pharmaceutical effect of the GBH on superoxide generation in human neutrophils has not been studied. In the present report, we investigated the possibility of using herbal medicine as an alternative therapy. In particular, we studied tremor in antiatheroscleosis. In this report, we shows the GBH extract can be used as a potential atherosclerosis preventive agent in human. The effect of GBH on stimulus-induced superoxide generation and phosphorylation of tyrosine residues of protein in human neutrophils was investigated. In a conclusion, GBH suppressed tyrosine phosphorylase in a dose-dependent manner, and may have pharmacoceutical applications. These data suggest that GBH extracts merits investigation as a potential anti-atherosclerogenic agent in humans.

Effects of Apium graveolens Extract on the Oxidative Stress in the Liver of Adjuvant-Induced Arthritic Rats

  • Sukketsiri, Wanida;Chonpathompikunlert, Pennapa;Tanasawet, Supita;Choosri, Nutjanat;Wongtawatchai, Tulaporn
    • Preventive Nutrition and Food Science
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    • v.21 no.2
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    • pp.79-84
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    • 2016
  • Apium graveolens Linn. (Apiaceae) is an indigenous plant of the North and South Americas, Southern Europe, and Asia and has been widely used as a food or a traditional medicine for treatment of inflammation and arthritis. The purpose of this study was to investigate the antioxidant effects of a methanolic extract of A. graveolens (AGE) against liver oxidative stress in an adjuvant-induced arthritic rat model. The AGE (250, 500, and 1,000 mg/kg) was given orally for 24 consecutive days after induction by injecting complete Freund's adjuvant. Liver and spleen weights were recorded. The superoxide anion level, total peroxide (TP), glutathione peroxidase (GPx) activity, superoxide dismutase (SOD) activity, total antioxidant status, and oxidative stress index (OSI) were also measured. AGE treatment significantly decreased the levels of the superoxide anion, TP, and OSI whereas the GPx and SOD activities significantly increased in the liver of the arthritic rats. These results indicated that AGE showed an ameliorative effect against liver oxidative stress in adjuvant-induced arthritic rats by reducing the generation of liver free radicals and increasing the liver antioxidant enzyme activity.

Antimicrobial Activity against Helicobacter pylori from the Korean Rice Liquor Fermented with Mulberry leaves(Morus Alba L.) (뽕잎발효주가 Helicobacter pylori에 대해 미치는 항균활성)

  • Im, Jeung-Suk;Jeon, Byung-Hun;Park, Yun-Jum;Kim, Won-Sin
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.4
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    • pp.580-585
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    • 2010
  • To develop a new traditional rice liquor by using Mulberry leaves, the optimal condition of fermentation was investigated by addition of different concentrations (1%, 3%, and 5%) of Mulberry leaves powder in the raw rice mash. The efficiency of ethanol production of all conditioned groups were not inhibited by addition Mulberry leaves. The acceptability and antimicrobial activity of the Mulberry leaves liquor with different concentrations of Mulberry leaves powder were tested. The 3% Mulberry leaves liquor showed the best acceptability in the sensory evaluation test and color test. The antimicrobial activity against Helicobacter pylori were increased according to added amount of Mulberry leaves. It was supposed that the antimicrobial activity were affected by phenolic compound extracted from Mulberry leaves with ethanol produced during the fermentation period. The results suggested that the Mulberry leaves can be useful source to develop a new traditional rice liquor.

Production of Flavonoid Aglycone from Korean Glycyrrhizae Radix by Biofermentation Process (발효법제에 의한 감초의 Flavonoid 무배당체의 생산)

  • Na, In-Su;Park, Min-Ju;Noh, Chong-Hoon;Min, Jin-Woo;Bang, Myun-Ho;Yang, Deok-Chun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.3
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    • pp.569-574
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    • 2008
  • The GUE6 was isolated from ethyl acetate fraction of Glycyrrhiza uralensis and confirmed as liquiritin. Liquiritin(LQ) treated with ${\beta}$-glucosidase from plant(Prunus dulcis) and bacteria(Lactobacillus pentosus) crude enzymes. The ${\beta}$-glucosidase activities of crude enzymes were 229.8 U/g(Prunus dulcis) and 19.17 U/ml(Lactobacillus pentosus), respectively. Liquiritin(LQ) biotransformed into liquiritigenin(LQG) by ${\beta}$-glucosidase from crude enzymes. The EtOAc fraction(GUE6) and the converted product were identified as liquiritin and liquiritigenin, by TLC chromatogram, $^{1}H$-NMR and $^{13}C$-NMR.

Effect of Benincasa hispida Extract on Mucus Secretion in Rat Tracheobronchial Lumen (동과추출물이 흰쥐의 기관·기관지 내 점액분비에 미치는 영향)

  • Kang, Young Kook
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.30 no.5
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    • pp.314-319
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    • 2016
  • Mucus in the respiratory system is a factor to cause not only respiratory diseases but also chronic diseases. In this regard, this study is to investigate whether Benincasa hispida extracts (BHE) would stimulate secreting mucus in trachea and tracheobronchial lumen of rats. As a result, effect of stimulating the mucus secretion into trachea and trachebronchial lumen of rats is significantly increased in accordance with the administration concentration of Benincasa hispida seed extracts (BHSE). The secretion amounts of phenol red (PR) and sodium fluoreseceine (NaFI) are significantly increased by 25% and 34%, respectively, when 70% EtOH extracts of Benincasae pericarpium (BPE) are administrated to rats at the concentration of 200 mg/kg. In addition, the secretion amounts of PR and NaFI are significantly increased when BuOH fraction and water fraction are intraperitoneally administrated to rats at the concentration of 200 mg/kg. It seems the result implies the physiologically active substance that stimulates the secretion of mucus is contained in Benincasa hispida. Thus, Benincasa hispida is considered to be effective for Korean medicine treatment as a medicinal plant having effect of antitussive and apophlegmatic, and it also can be useful in developing functional food and beverage.

Pharmacological Screening of Crude Extracts from Medicinal Plants (I)

  • Oh Hyun Ju;Kwag Jung Sook;Kim Myung Ju;Perry Nigel B.;Na Young Soon;Kim Hyung Min;Baek Seung Hwa
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.1
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    • pp.250-253
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    • 2004
  • The effects of crude extracts from medicinal plants on biological activity were investigated. The crude ethanol extract of H. paucistipula inhibited the growth of the Gram positive bacterium Bacillus subtilis ATCC 19659, (2 mm inhibition zone at 150 ㎍/disc) and the dermatophyte Trichophyton mentagrophytes ATCC 28185, (7 mm inhibition zone at 150 ㎍/disc), and toxic to P388 murine leukaemia cells ATCC CCL 46 P388D1, (IC/sub 50/ 2.48 ㎍/㎖ at 75 ㎍/disc). This crude ethanol extract of H. paucistipula is the strongest antimicrobial and cytotoxic activities against P388 murine leukaemia cells ATCC CCL 46 P388D1.

Pharmacological Effects of Bioactive Fractions from Brachyglottis monroi

  • Kwag Jung Sook;Na Young Soon;Perry Nigel B.;Kim Hyung Min;Baek Seung Hwa
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.1
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    • pp.260-264
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    • 2004
  • The effects of bioactive fractions from Brachyglottis monroi on biological activity were investigated. this bioactive subfraction 6-5 is the most cytotoxic to P388 murine leukaemia cell lines. A comparison of IC/sub 50/ values of these subfraction in cancer cell lines showed that their susceptibility to these subfractions decreased in the following order; Fr. 6-5 > Fr. 6-3 > Fr. 6-6 > Fr. 6-1 > Fr. 6-2 > Fr. 6-4 by the MTT method. Silica gel flash column chromatography concentrated the cytotoxic activity in subfraction 6-5 which eluted with 30% and 40% ethyl acetate : hexane gave a major bioactive (51 mg, P388 IC/sub 50/ 8,286 ng/mL at 7.5 ㎍/disc).

Immunomodulatory Effect of Bio-Q, Bokiikhyul Prescription (보기익혈 복합방, 바이오 큐의 면역조절 효과)

  • Lee, Hyo-Jung;Khil, Jae-Ho;Baek, Nam-In;Ra, Jeong-Chan;Kim, Sung-Hoon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.4
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    • pp.908-912
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    • 2005
  • Bio-Q is a modified prescription with the activities of supplementing Qi and blood in human body. In the present study, immunomodulatory effect of Bio-Q was examined. After oral administration of Bio-Q for 7 days to Balb/c mice, splenocytes were isolated and immunological experiments were performed. Bio-Q significantly increased the proliferation of splenocytes exposed to concanavalin A (Con A), while it did not in case of lipopolysaccharide (LPS) stimulation. Bio-Q also significantly increased CD3/CD19, CD4/CDB and NK cells by flow cytometric analysis. In addition, Bio-Q significantly enhanced the level of $INF-\gamma$ in splenocytes, but not $TNF-\alpha$ by ELISA. These results strongly suggest that Bio-Q has immunomodulatory activity through the regulation of T cell mediated immune pathway.