• Title/Summary/Keyword: Anti-coagulation

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Antithrombotic Phenolics from the Stems of Parthenocissus tricuspidata Possess Anti-inflammatory Effect

  • Nguyen, Phi-Hung;Zhao, Bing Tian;Lee, Jeong Hyung;Kim, Young Ho;Min, Byung Sun;Woo, Mi Hee
    • Bulletin of the Korean Chemical Society
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    • v.35 no.6
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    • pp.1763-1768
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    • 2014
  • In the course of our program to search for antithrombotic and anti-inflammatory agents from plants, twelve phenolics (1-12) were isolated from the stems of Parthenocissus tricuspidata. Their structures were elucidated on the basis of spectroscopic (1D and 2D NMR, and MS) data analyses, and comparison with published data. At the concentration of $100{\mu}g/ml$, compounds 2, 4, 6 and 10 possessed potential effects on anti-blood coagulation, with inhibitory percentage of 216, 174, 148 and 225%, respectively; while aspirin used as positive control showed 181% inhibition at the same concentration. Furthermore, the anti-inflammatory activity of isolated compounds (1-12) was investigated on lipopolysaccharide (LPS)-induced murine macrophage cells (RAW264.7). Compounds 2, 4 and 6 also potential inhibited the production of nitric oxide, with $IC_{50}$ values of $11.9{\pm}0.3$, $2.9{\pm}0.2$ and $29.0{\pm}0.6{\mu}M$, respectively. Celastrol, the positive control used, gave an $IC_{50}$ value of $1.0{\pm}0.1{\mu}M$.

Effect of 4-hexylresorcinol on Blood Coagulation and Healing of Injured Vessel in a Rat Model

  • Park, Yong-Tae;Park, Si-Yeok;Kim, Min-Keun;Kim, Seong-Gon;Park, Young-Wook;Kwon, Kwang-Jun
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.35 no.5
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    • pp.284-293
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    • 2013
  • Purpose: For reconstruction of craniomaxillofacial defects caused by tumor, trauma, infection etc, free flap transplantation with microvascular surgery is a very useful method. Thrombus formation at the anastomosis site is the major cause of graft failure. 4-Hexylresorcinol (4-HR) is generally known as an antiseptic and antiparasitic agent. This study was conducted in order to evaluate the effect of 4-HR on blood coagulation in vitro. In addition, we investigated thrombus formation and endothelial repair of an injured vessel in an animal model. Methods: In the in vitro experiment, we compared blood coagulation time between the 4-HR treated group and normal blood. Thirty rats were used for in vivo animal experiments. After exposure of the right femoral vein, a micro vessel clamp was placed and the femoral vein was intentionally cut. Microvascular anastomosis was performed on all rats using 10-0 nylon under microscopy. The animals were divided into two groups. In the experimental group (n=15), 4-HR (250 mg/kg) mixed with olive oil (10 mL/kg) was administered per os daily. Animals in the control group (n=15) were given olive oil only. The animals were sacrificed at three days, seven days, and fourteen days after surgery and rat femoral vein samples were taken. Vascular patency and thrombus formation were investigated just before sacrifice. Histologic analysis was performed under a microscope. Results: Results of an in vitro blood coagulation test showed that coagulation time was delayed in the 4-HR treated group. The results obtained from an in vivo 4-HR administered rat model showed that the patency of all experimental groups was better at thirty minutes, seven days, and fourteen days after microvascular anastomosis than that of the control group at seven and fourteen days after anastomosis, and the amount of thrombus in the experimental groups was much less than that of the control group. Endothelial repair was observed in the histologic analysis. Conclusion: Findings of this study demonstrated that blood coagulation was delayed in the vitro 4-HR treated group. In addition, good vascular patency, anti-thrombotic effect, and repair of venous endothelial cells were observed in the vivo 4-HR administered rat group.

Biological activities and biomedical potential of sea cucumber (Stichopus japonicus): a review

  • Oh, Gun-Woo;Ko, Seok-Chun;Lee, Dong Hee;Heo, Soo-Jin;Jung, Won-Kyo
    • Fisheries and Aquatic Sciences
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    • v.20 no.11
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    • pp.28.1-28.17
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    • 2017
  • Members of the phylum Echinodermata, commonly known as echinoderms, are exclusively marine invertebrates. Among the Echinodermata, sea cucumber belongs to the family Holothuroidea. The sea cucumber Stichopus (Apostichous) japonicus (Selenka) is an invertebrate animal inhabiting the coastal sea around Korean, Japan, China, and Russia. Sea cucumber has a significant commercial value, because it contains valuable nutrients such as vitamins and minerals. They possess a number of distinctive biologically and pharmacologically important compounds. In particular, the body wall of sea cucumber is a major edible part. It consists of peptide, collagen, gelatin, polysaccharide, and saponin, which possess several biological activities such as anti-cancer, anti-coagulation, anti-oxidation, and anti-osteoclastogenesis. Furthermore, the regenerative capacity of sea cucumber makes it a medically important organism. This review presents the various biological activities and biomedical potential of sea cucumber S. japonicus.

Studies on the Effect of Guichoolpajing-Tang and Gamiguichoolpajing-Tang (징하에 응용(應用)되는 귀출파징탕과 가미귀출파징탕의 효능(效能)에 관(關)한 연구(硏究))

  • Song, Seog-Ho;Song, Byoung-Key;Lee, Kyoung-Sup
    • THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
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    • v.1 no.1
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    • pp.213-230
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    • 1995
  • The present work was done to investigate the pharmacological effectiveness of Guichoolpajing-Tang and Gamiguichoolpajing-Tang. The extracted water of those two prescription were administered to experimintal animals and determined analgesic, anti-pyretic, anti-inflammatory effects and effects on intravascular coagulation, spontaneous morements of the isolated rat uterus, the uterine contracion induced by oxytocin or $PGF_{20}$, lifespan of mice implanted intraperitoneally with Sarcoma 180. The following results were obtained. 1) The extracted water of Guichoolpajing-Tang and Gamiguichoolpajing-Tang were revealed significant analgesic effect. 2) The extracted water of Guichoolpajing-Tang and Gamiguichoolpajing-Tang showed anti-pyretic effect. 3) The extracted water of Guichoolpajing-tang and Gamiguichoolpajing-Tang showed anti-inflammatory effect. Especially, the extracted water of Gamiguichoolpajing-Tang showed more significant dffect than another. 4) Concerning the degree of concentration of FDP, Gamiguichoolpajing-Tang treated groups tevealed significant decreases. 5) The extracted water of both prescriptions revealed uterus relaxation on the spontaneous movement of the isolated rat uterus and showed uterine contraction induced by oxytocin or $PDF_{2}$. Especially Guichoolpajing-Tang showed more significant effect than another. 6) The extracted water of both prescription both prescriptions showed effect on lifespan of mice implanted intraperitoneally with Sarcoma 180.

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The Effects of Blood-acting and Stasis-eliminating therapy on Anti-tumor and hematogenic metastasis (활혈화어법(活血化瘀法)의 항종양(抗腫瘍) 및 혈행(血行) 전이(轉移)에 대(對)한 고찰(考察))

  • Park, Mee-Ryong;Lee, Yeon-Weol;Cho, Jung-Hyo;Son, Chang-Kyu;Yoo, Hwa-Seung;Cho, Chong-Kwan
    • THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
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    • v.9 no.1
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    • pp.53-63
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    • 2003
  • This study was analyzed the effects of blood-activating and stasis-eliminating herbs on anti-tumor and hematogenic metastasis. The metastasis and recurrence of tumor was the basis of yudok(yudu) on remained tumor cell and stagnation of blood, thermotoxo, phlegm, asthenia of healthy enerngy, stagnation of vital energy. Malignant tumor is caused by carcinogen and go through the progress of initiation, promotion, progression, it is closely related with Eohyul$(y{\grave{u}}xi {\breve{e}})$. Symptoms of blood stasis disease are purplish tongue, mass, fixed stabbing pain, ecchymosis of nail, hypodermic petechia, dermal thesaurismosis, melena, ecchymoma, disturbance of circulation. Effects on the therapy of activating blood circulation and congestion are anti-tumor, anti-coagulation, anti-hemolysis, anti-solution, anti-inflammation, anti-infection, control of blood circulations, control of connective tissue metabolism and control of immunity. They can directly kill the cancer cells entering the blood circulation, inhibit the formation of tumor embody and reduce the blood hyperviscosity. It is suggested that these herbs can be used to prevent and treat blood metastasis of cancer under the guidance of syndrome differentiation.

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Anti-coagulation and Platelet Aggregation Inhibitory Activities of the Ethanol Extract of Aerial Bulbils of Dioscorea alata L. (열대마 영여자 추출물의 항응고 및 혈소판 응집저해 활성)

  • Su-Gyeong Jeon;So-Young Choe;Kyung-Ran Im;Jong-Pil Lee;Jun-Hong Park;Ho-Yong Sohn
    • Journal of Life Science
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    • v.34 no.3
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    • pp.153-159
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    • 2024
  • Dioscorea alata L, commonly known as "tropical yam" is the most widely consumed yam species among the 650 yam species belonging to the Dioscoreacea family. It is extensively cultivated in tropical and subtropical regions and is a major food source in Africa and India. Also, it is used for medicinal purposes, particularly in China and Taiwan, for its anti-inflammatory properties. In comparison to other yam varieties such as D. batatas or D. opposita, the tropical yam has gained popularity in Korea due to its higher yield per unit area. In this study, the nutritional characteristics and anti-thrombosis activity of the aerial bulbils of D. alata L. tropical yam were compared to those of D. opposita. The results showed that the aerial bulbils of tropical yam exhibited nutritional characteristics and potent anticoagulant activity compared to those of domestic yam varieties. The bulbils extract of tropical yam showed superior anticoagulant activities against thrombin, prothrombin and blood coagulation factors. Furthermore, the bulbils extract of tropical yam exhibited strong platelet aggregation inhibition at 0.25 mg/ml and showed no hemolytic activity up to a concentration of 2.5 mg/ml. These findings suggest the potential development of high-value anti-thrombosis agents utilizing the aerial bulbils of tropical yam.

Diffuse Alveolar Hemorrhage

  • Park, Moo Suk
    • Tuberculosis and Respiratory Diseases
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    • v.74 no.4
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    • pp.151-162
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    • 2013
  • Diffuse alveolar hemorrhage (DAH) is a life-threatening and medical emergency that can be caused by numerous disorders and presents with hemoptysis, anemia, and diffuse alveolar infiltrates. Early bronchoscopy with bronchoalveolar lavage is usually required to confirm the diagnosis and rule out infection. Most cases of DAH are caused by capillaritis associated with systemic autoimmune diseases such as anti-neutrophil cytoplasmic antibody-associated vasculitis, anti-glomerular basement membrane disease, and systemic lupus erythematosus, but DAH may also result from coagulation disorders, drugs, inhaled toxins, or transplantation. The diagnosis of DAH relies on clinical suspicion combined with laboratory, radiologic, and pathologic findings. Early recognition is crucial, because prompt diagnosis and treatment is necessary for survival. Corticosteroids and immunosuppressive agents remain the gold standard. In patients with DAH, biopsy of involved sites can help to identify the cause and to direct therapy. This article aims to provide a general review of the causes and clinical presentation of DAH and to recommend a diagnostic approach and a management plan for the most common causes.

Property Evaluation of Breathable Blend Fabric of MPCE Copolymer and Wet Coagulated Polyurethane (MPCE copolymer와 습식 폴리우레탄의 블렌드에 의한 투습방수 나일론 직물의 제반 물성변화에 관한 연구)

  • Yi, Jong-Woo;Chae, Ei-Jung;Bae, Jin-Seok
    • Textile Coloration and Finishing
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    • v.26 no.4
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    • pp.322-330
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    • 2014
  • The phospholipid-based MPCE(2-Methacryloxyethyl Phosphoryl Chlorine) copolymer was mixed with wet polyurethane for coating of nylon fabrics. The substitution rate of water in coagulation bath with DMF was changed under control of the size of formed hydrophilic microporous cell enable to manufacture excellent breathable, anti-bacterial and moisture control fabrics. Biocompatible property, vapor permeability, hydrostatic pressure, moisture management and anti-bacterial property were investigated for treated nylon fabrics. In result, increased moisture transmission rates, decreased water resistance and outstanding moisture control property could be confirmed by enhanced hydrophilicity of wet-coated nylon fabric with MPCE copolymer.

Anticoagulant Activity of Ilexoside D, a Triterpenoid Saponin from ilex pubescens

  • Han, Yong-Nam;Song, Jae-Ihn;Rhee, In-Kyung
    • Archives of Pharmacal Research
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    • v.16 no.3
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    • pp.209-212
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    • 1993
  • The anti-coagulant activity of ilexoside D isolated from the roots of ilex pubescens Hook. et Am. was investigated in in vivo models of blood coagulation in rats. On oral administration, ilexoside D prolonged the bleeding time and the whole blood recalcified clotting time, but not the plasma recalcified clotting time. In vitor, ilexoside D did not affect the recalciffed clotting times of whole blood, platelet-rich plasma(PRP), and platelet-poor plasma(PPP), while in the presence of tissue factor the compound prologed the reduced proth-rombin times of whole blood, PRP and PPP in the dose-dependent manner. These results indicate that ilexoside D has the anit-tissue factor activity as well as the antithromobotic activity.

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Effects of Ligusticum Chuanxiang on blood circulation and oxidative stress (천궁의 혈액순환과 항산화적 효과)

  • Park Yeong-Chul;Lee Sun-Dong;Heo Yong;Kim Hyun-Soo;Lee In-Seon
    • Journal of Society of Preventive Korean Medicine
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    • v.6 no.2
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    • pp.86-94
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    • 2002
  • Ligusticum Chuanxiong and its components were reviewed in terms of pharmacodynamic mechanisms. Three components of about 40 chemical components in Chuanxiong tetramethylpyrazine, ferulinolol and Butylidenephthalide have mainly been studied for its pharmacodynamic mechanisms which are focused on the increase in blood flow and anti-oxidative stress. The mechanisms for the effects of Chuanxiong on the increase in blood flow can be summarized as four ways, 1) anti-coagulation 2) blocker of ${\beta}1$ adrenergic receptor 3) cellular control of Ca++ level 4) collagen synthesis. Chuanxiong also showed the effectiveness on free radical-induced injury. It seems that its effectiveness is also related to the mechanisms for the increase in blood flow.

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