• Title/Summary/Keyword: anti-coagulant effects

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The study about anticoagulant effect of Polygoni Mutiflori Radix (하수오(何首烏)의 항응고효과에 대한 실험적 고찰)

  • Moon, Bo-Sang;An, Taek-Won
    • Journal of Haehwa Medicine
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    • v.16 no.2
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    • pp.303-310
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    • 2007
  • The purpose of this study is to investigate the anti-coagulant effects of Polygoni Mutiflori Radix extracts. The results were as follows : 1. This study show that Polygoni Mutiflori Radix extracts have Anti-coagulant significant effects on Prothrombin time in vitro test. 2. This study show that Polygoni Mutiflori Radix extracts have Anti-coagulant significant effects on Activated Partial Thromboplastin Time vitro test.

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Physiologically Functional Foods (기능성 식품에 관하여)

  • 이종임
    • Culinary science and hospitality research
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    • v.5 no.2
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    • pp.401-418
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    • 1999
  • Many plants and animal have long been known to have medicinal effects and therefore have been used as medicines. There are many substances that show various pharmacologic efficacy such as anti-tumor efficacy, anti-inflammatory efficacy, cholesterol-lowering efficacy, anti-coagulant of blood efficacy and anti-bacterial efficacy. I summarized the recent advances in research on physiologically functional foods. The pharmacological efficacy of dietary fiber, chitin & chitosan, DHA(docosahexaenoic acid), mushroom, alginic acid and herbs have selected as topices for discussion. I was examining the anti-coagulant activity of herbs, I discovered that Eugenia caryophyllata T. (clove) had a relatively high anti-coagulant activity.

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Platelet Anti-aggregatory Effects of Coumarins from the Roots of Angelica genuflexa and A. gigas

  • Lee, Yong-Yook;Lee, Sang-Hyun;Jin, Jing-Ling;ChoiYun, Hye-Sook
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.196.1-196.1
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    • 2003
  • Angelica genuflexa (Umbelliferae) is a perennial herbaceous plant which has also been variously reported as A. koreana and Ostericum koreanum. The MeOH extract was reported to have strong anti-thrombotic potential in the acute thrombosis model. In our preliminary testing, the MeOH extract and one of the solvent fractions (90% MeOH fr.) were observed to have both platelet anti-aggregating and anti-coagulant effects. Five coumarins, isoimperatorin (1), pabulenol (2), isooxypeucedanin (3), oxypeucedanin hydrate (4) and osthol (5) were isolated from the MeOH extract of Angelica genuflexa in the course of searching for anti-platelet and anti-coagulant components. (omitted)

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Platelet Anti-aggregating and Anti-oxidative Activities of 12-O-(4'-O-methyl-galloyl)-bergenin, a Novel Compound Isolated from Crassula cv. "Himaturi"

  • Lee, Yong-Yook;Jang, Dae-Song;Jin, Jing-Ling;YunChoi, Hye-Sook
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.193.3-194
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    • 2003
  • Platelets play critical roles in both hemostasis and thrombosis. It was reported that platelet aggregation is associated with an increase in superoxide production and can be inhibited by hydroxyl radical scavengers. In the course of our search for the anti-platelet, anti-coagulant and/or anti-oxidative components from plants, the MeOH extract of Crassula cv. "Himaturi" (Crassulaceae) was observed to have both anti-aggregatory and anti-coagulant effects. A novel compound, 12-O-(4'-O-methyl-galloyl)-bergenin (1), was isolated as an active component from the EtOAC soluble fraction. (omitted)

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Platelet Anti-Aggregatory Effects of Coumarins from the Roots of Angelica genuflexa and A. gigas

  • Lee, Yong-Yook;Lee, Sang-Hyun;Jin, Jing-Ling;Yunchoi, Hye-Sook
    • Archives of Pharmacal Research
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    • v.26 no.9
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    • pp.723-726
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    • 2003
  • Five coumarins, isoimperatorin (1), pabulenol (2), isooxypeucedanin (3), oxypeucedanin hydrate (4) and osthol (5) were isolated from the MeOH extract of Angelica genuflexa in the course of searching for anti-platelet and anti-coagulant components from plants. Pabulenol (2) was isolated from A. genuflexa for the first time. The five compounds isolated from A. genuflexa, together with decursinol angelate (6), decursin (7) and nodakenin (8) from A. gigas were evaluated for their effects on platelet aggregation and blood coagulation. Compounds 2, 5, 6 and 7 were observed to be either equally effective or 2∼4 times more inhibitory than ASA in both arachidonic acid and U46619 ($TXA_2$ mimetic) induced platelet aggregations.

The Abanones, Haliotis discus hannai, Exhibit Potential Anticoagulant Activity in Normal Sprague Dawley Rats (정상 Sprague Dawley 쥐에 대한 전복의 항응고능에 관한 효과)

  • Kim, Hag-Lyeol;Kim, Seon-Jae;Kim, Du-Woon;Ma, Seung-Jin;Gao, Tiancheng;Li, Hua;Lee, Tae-Hoon;Kim, In-Cheol;Ham, Kyung-Sik;Kang, Seong-Gook
    • Food Science and Preservation
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    • v.14 no.4
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    • pp.431-437
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    • 2007
  • The primary objective of this study was to determine the effects of abalone in reducing blood pressure and increasing anti-coagulant capacity. The serum angiotensin-converting-enzyme (ACE) activities of rats on an abalone-supplemented diet did not significantly differ from the ACE levels of rats on a normal diet, at any time (before the experiment, or 1 week, 2 weeks, 3 weeks, and 4 weeks, after commencement of the abalone diet) during the experiment. This result showed that abalone-supplemented diets had no effect on the activity of ACE, which controls blood pressure. To determine if an abalone-containing diet might increase anti-coagulant capacity, both prothrombin (PT) and activated partial thromboplastin time (APTT) levels were measured. The PT levels of control rats remained constant throughout the experiment. In rats fed the abalone-containing diet, PT levels increased with time, and the increase became statistically significant after 2 weeks, when compared to pre-trial PT levels. Control rats showed no significant change in APTT levels over time. The rats fed abalone, however, showed significant differences in APTT levels. Specifically, when pre-trial APTT levels were compared with 4-week levels, and when 1-week levels were compared with 4-week levels, the differences attained statistical significance. These results indicate that an abalone-supplemented diet may inhibit blood coagulation in normal rats. The results of this study prove the inherent health value of abalone, and may encourage investment in the seafood industry. Future studies will explore other possible beneficial effects of abalone, apart from the anti-hypertension and anti-coagulant effects examined above.

Fucoidan Extract from Laminaria religiosa Suppresses Ischemia-induced Apoptosis and Cell Proliferation in the Hippocampus of Gerbils

  • Lee, Jong-Jin;Song, Yun-Kyung;Lim, Hyung-Ho
    • The Journal of Korean Medicine
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    • v.27 no.4
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    • pp.105-115
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    • 2006
  • Fucoidan has been shown to exhibit a host of biological activities, including anti-coagulant, anti-thrombotic, anti-tumourigenic, anti-inflammatory, anti-viral, anti-complementary and neuroprotective effects. In the present study, we attempted to determine the effects of Fucoidan on both apoptosis and cell proliferation in the hippocampal CA1 region and the dentate gyrus of gerbils after the induction of transient global ischemia. This experiment involved the use of terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay as well as immunohistochemisty for caspase-3 and 5-bromo-2'-deoxyuridine (BrdU). The monosaccharide composition of the purified Fucoidan which had been extracted from Laminaria religiosa was utilized in this study. The present study clearly induces that apoptotic cell death and cell proliferation in the gerbil's hippocampal regions increased significantly following the induction of transient global ischemia and the results of this study also indicate that Fucoidan exerted a suppressive effect on this observed ischemia-induced increase in apoptosis within the CA1 and dentate gyrus, and also suppressed cell proliferation in the dentate gyrus.

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The Anticoagulant and Anticancer Activities of Enteromorpha intestinalis Extracts (파래 추출물의 항응고 활성과 항암 활성에 관한 연구)

  • Lim, Eun-Jeong;Cho, Kyung-Ryun;Kim, Ji-Young;Lee, Yoo-Hyun;Ho, Jin-Nyoung;Kim, Young-Jun;Cho, Hong-Yon
    • The Korean Journal of Food And Nutrition
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    • v.21 no.1
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    • pp.7-14
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    • 2008
  • The study was performed to investigate the biological activity of Enteromorpha intestinalis. In order to examine its blood anti-coagulant effects, Enteromorpha intestinalis was extracted with cold water, methanol, hot water, HCl and NaOH. In general, the alkali extract of Enteromorpha intestinalis was approximately 17 times stronger than the control. The anti-cancer effects of select extracts(methanol, hot water, 0.1 N NaOH, 1 N NaOH) were determined in human melanoma cells(Bl6/F10), fibrosarcoma cells(HTl080) and breast cancer cells(MCF7) by MTT assay. With the treatment of 250 ${\mu}g/m{\ell}$ of methanol extracts. HT1080, B16/F10 and MCF7 cell viabilities significantly decreased to 8.06%, 3.62% and 10.10%, respectively. Thus these results strongly support the possibie use of Enteromorpha intestinalis as a functional materials.

Aqueous extract of Paeonia radix suppresses lipopolysaccharide-induced expressions of cyclooygenase-2 and inducible nitric oxide synthase in mouse BV2 microglial cells

  • Hong, Sung-Kwan;Kim, Youn-Sub;Yang, Hye-Young;Chang, Hyun-Kyung;Kim, Yu-Mi;Shin, Mal-Soon;Baek, Seung-Soo;Kim, Chang-Ju
    • Advances in Traditional Medicine
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    • v.7 no.5
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    • pp.540-548
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    • 2008
  • Paeonia radix is the root of Paeonia aliflora Pallas, which is a perennial plant classified in the family Paeoniaceae. Paeonia radix possesses several pharmacological effects such as analgesic, anti-inflammatory and anti-allergic, anti-oxidative, and anti-coagulant activities. In this study, we investigated the effect of the aqueous extract of Paeonia radix on the lipopolysaccharide-induced inflammation in mouse BV2 microglial cells. The aqueous extract of Paeonia radix at respective concentration was treated one hour before lipopolysaccharide treatment. In the present results, the aqueous extract of Paeonia radix suppressed prostaglandin $E_2$ synthesis and nitric oxide production by inhibiting the lipopolysaccharide-stimulated mRNA expressions of cyclooxygenase-2 and inducible nitric oxide synthase in mouse BV2 microglial cells. These results demonstrate that Paeonia radix exerts anti-inflammatory and analgesic effects probably by suppressing mRNA expressions of cyclooxygenase-2 and inducible nitric oxide synthesis. The present study demonstrates that Paeonia radix may offer a valuable mean of therapy for brain inflammatory diseases.

Optical Properties Control by Surface Treatment on Display Cover Glass (디스플레이 커버 글라스의 표면 처리에 의한 광학요소 제어)

  • Kim, Sung Soo;Hwang, Jai Suk;Jeon, Bup Ju
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.28 no.9
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    • pp.607-614
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    • 2015
  • To provide the clear images from the direct light on electrical board and display devices, anti glare treatment of display cover glass is needed. In this study, the effects of surface treatment temperature, concentration, and etching solution coating thickness of the gel phase on optical elements control such as gloss, haze of reflected light and transmittance, were investigated. Cover glasses were treated at different coating thickness and additive concentration. The optical properties were examined using spectrophotometer, gloss and haze meter. The surface morphology and roughness were measured by the optical microscope and Ra measuring instrument. The etching rate and surface morphologies were dramatically affected by the concentration of acid additive in the viscous gel because of re-crystallization of components in the etching solution, hydrogel formation and coagulant after coating on glass substrate. In our experimental range, cover glass which is surface-treated with various optical properties as well as the morphology uniformity was obtained; in particular, optical properties could be controlled by etching solution coating thickness of the gel phase and the concentration of additive. The gloss was depended on the surface roughness and it showed the linear relationship between optical transmittance and haze of reflected light, respectively.