• Title/Summary/Keyword: Blood coagulation

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The Effect of Manbunbang on Thrombus Disease Related Factors (만분방(漫盆方)이 혈전(血栓) 병웅(病熊) 유관(有關) 인자(因子)에 미치는 영향(影響))

  • Jung, Woo-Suk;Cho, Han-Baek;Kim, Song-Baeg;Choe, Chang-Min;Choi, Chul-Won
    • The Journal of Korean Obstetrics and Gynecology
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    • v.21 no.1
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    • pp.55-82
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    • 2008
  • Purpose: In this study, we evaluated anti-inflammatory activity and anti-thrombosis effect of Manbunbang(MBB) prescribed to chronic PID patients. Methods: We studied inhibitory effect of platelet aggregation, suppression effect of GPIIb/IIIa activity and inhibitory effect of $TXB_2$ and $PGE_2$ biosynthesis which were caused by ADP, epinephrine, collagen and arachidonic acid in vitro. And suppression of pulmonary embolism, changes of related factors in dextran coagulation condition model and anti-oxidative effect of oxidative damage were studied in vivo. Results: MBB extract showed LD50 of $200\;{\mu}g/ml$ or higher in mouse lung fibroblast cells, and significantly decreased the GPT and GPT level in dextran coagulation condition model compared to the control. MBB extract showed dose-dependent inhibition effect on platelet coagulation induced by ADP, epinephrine, collagen, arachidonic acid. MBB extract showed dose-dependent inhibition effect on GPIIb/IIIa activities compared to the control. MBB extract significantly suppressed TXB2 and PGE2 biosynthesis compared to the control. MBB extract suppressed pulmonary embolism triggered by collagen and epinephrine by 37.5% compared to the control. MBB extract significantly suppressed the decrease of speed of bloodstream caused by blood coagulation in dextran coagulation condition model compared to the control. Concluson : The results strongly suggest the anti-inflammatory activity of Manbunbang through anti-thrombus. Various applications using Manbunbang on inflammatory diseases are anticipated. Anti-oxidative efficacy comparison data between the Manbunbang prescription and the drug compositions may be used as important clinical information, and further investigation of anti-oxidative activities of Chrysanthemum indicum and Rhemaniae Radix should be followed.

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The Effect of Eungapbang-gagam on Thrombus Disease Related Factors and Oxidative Stress (은갑방가감(銀甲方加減)이 혈전병태유관인자(血栓病態有關因子)와 산화적손상(酸化的損傷)에 미치는 영향(影響))

  • Lee, Soo-Jeong;Kim, Song-Baeg
    • The Journal of Korean Obstetrics and Gynecology
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    • v.21 no.2
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    • pp.125-151
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    • 2008
  • Purpose: In this study, we investigated the anti-thrombotic efficacy of "Eungapbang-gagam(EGB)" currently used in clinical treatment of PID Methods: We studied inhibitory effect of platelet cohesion, suppressive effect of GPIIb/IIIa activity, inhibitory effect of $TXB_2$ and $PGE_2$ biosynthesis, and oxidative damage suppression effects of "EGB" in vitro. Also, suppression of pulmonary embolism and changes of related factors in dextran coagulation condition model were studied in vivo. Results: In this study, EGB extract showed dose-dependent inhibitory effect on platelet coagulation induced by ADP, epinephrine, collagen, arachidonic acid. Also it showed dose-dependent inhibition effect on GPIIb/IIIa activities compared to the control group. EGB extract significantly suppressed the decrease of speed of bloodstream caused by blood coagulation in dextran coagulation condition model and increased the number of platelets and amount of fibrinogen, and decreased the APTT in dextran coagulation condition model compared to the control group. EGB extract showed dose-dependent decrease of oxidative damages caused by DPPH and superoxide anion radicals, whereas dose-dependent increase of superoxide dismutase like activity was observed compared to the control group. Conclusion: We confirmed the anti-thrombosis and anti-oxidative efficacy of "Eungapbang-gagam". Various clinical applications of "Eungapbang-gagam" as well as use of data for the construction of EBM is anticipated.

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Anti-coagulation and Anti-platelet Aggregation Activity of the Mature Fruit of Sorbus commixta (성숙 마가자의 혈액 응고저해 및 혈소판 응집저해 활성)

  • Kim, Mi-Sun;Sohn, Ho-Yong
    • Microbiology and Biotechnology Letters
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    • v.43 no.4
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    • pp.373-377
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    • 2015
  • The mature fruit of Sorbus commixta is known as magaja in Korea and is consumed in the form of tea and wine. In addition, it has been used to treat hypertension and articular neuralgia in folk medicine. In this study, the ethanol extract of magaja and its subsequent organic solvent fractions were prepared, and their in vitro anti-coagulation, and platelet aggregation inhibitory activities were evaluated. Among the fractions, the ethylacetate fraction demonstrated significant inhibition against thrombin, prothrombin, blood coagulation factors and platelet aggregation, without hemolysis activity up to 0.5 mg/ml. Our results suggest that the ethylacetate fraction of magaja has the potential to be used as a new anti-coagulation agent.

Effects of the AngiotensinII $AT_1$ Receptor Antagonist SK-1080 on Ischemia/reperfusion in Isolated Rat Hearts and on Platelet Aggregation and Coagulation in Human Blood (Angiotensin II $AT_1$ 수용체 길항제인 SK-1080의 적출심장에 대한 허혈후 재관류시의 작용 및 혈소판응집과 혈액응고에 대한 효과)

  • Woo, Su-Kyoung;Choi, Sang-Su;Lee, Byung-Ho;Kwon, Kwang-Il
    • YAKHAK HOEJI
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    • v.44 no.6
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    • pp.558-565
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    • 2000
  • SK-1080 is one of the newly developed orally active nonpeptide angiotensinII $AT_1-receptor$ antagonist that selectively acts at $AT_1$ receptor with high affinity. The cardiac effect on ischemia/reperfusion injury of SK-1080 was compared with those of losartan, a prototype of this class, in isolated rat hearts. Isolated perfused rat heart was pretreated with drug for 10 min and then subjected to global ischemia for 30 min followed by reperfusion with- or without drug for 30 min. The possible additive effect of SK-1080 on the platelet aggregation and coagulation in human blood was also studied. We investigated whether SK-1080 effects the platelet aggregation induced by ADP, a platelet agonist partially dependent on $thromboxaneA_2$. The clotting times in the prothrombin time (PT) and activated partial thromboplastin time (APTT) were also examined in human plasma in vitro as coagulation screening test. SK-1080 improved reperfusion function (LVDP, left ventricular developed pressure; PRP, rate-pressure product) in a dose-dependent manner. SK-1080 reduced ADP-induced platelet aggregation compared with vehicle but less than losartan, and did not affect clotting times.

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Two Cases of Disseminated Intravascular Coagulation (DIC) Following Pit Viper Envenomation (살모사 교상 후 발생한 범발성 혈관내 응고장애 2례)

  • Kim, Suk-Hwan;Choi, Se-Min;Oh, Young-Min;Park, Kyu-Nam;Lee, Won-Jae;Choi, Kyung-Ho
    • Journal of The Korean Society of Clinical Toxicology
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    • v.4 no.2
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    • pp.137-142
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    • 2006
  • Our records include two cases of DIC in snakebite patients. One patient, who was 48-years old, was bitten in his left ankle 3 days before admission to our hospital. Initial symptoms were painful swelling, extensive ecchymosis, and persistent bleeding at the bite site. He visited and was admitted to a local hospital, but his condition did not improve with supportive care that included a single dose of antivenin. He was transferred to our hospital. His condition was compatible with DIC. We tried multi-dose antivenin therapy and blood product transfusion. At the seventh hospital day, the patient's symptoms were completely resolved. The other patient, who was 75 years old, was bitten in his right thumb. Initial symptoms were painful swelling of the right arm and persistent bleeding at the bite site, and within minutes of hospital admission, the patient experienced massive hematochezia. We peformed laboratory tests, the results of which were compatible with DIC, and the next day a sigmoidscopic examination showed ischemic colitis. We administered multi-dose antivenin therapy and blood product tranfusion. At the third hospital day mild anemia still existed, but the patient's clinical condition was improved. No signs or symptoms of gastrointestinal bleeding were observed. In these two cases, multi-dose antivenin therapy and transfusion effectively resolved symptoms of DIC. Platelet concentrate transfusion was required only for acute thrombocytopenia. After resolution of DIC, platelet counts were returned to normal ranges within a few days. The authors propose that multidose antivenin therapy and coagulation factor transfusion might be useful for improving coagulopathy in snakebite patients.

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Antithrombotic Effect and Antiplatelet Activity of Polygonum cuspidatum Extract (호장근 추출물의 항혈전 효능 및 혈소판 응집 억제작용)

  • Yang, Won-Kyung;Sung, Yoon-Young;Kim, Ho-Kyoung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.41 no.2
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    • pp.168-173
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    • 2012
  • We performed this study to develop antithrombotic agents from oriental medicine herb extracts. Polygonum cuspidatum has been traditionally used as an edible medical resources for the treatment of cancer, pyodermatitis, hepatitis, cystitis, and inflammation. However, the effects of Polygonum cuspidatum on thrombosis and platelet activation are not precisely understood. The antithrombotic and antiplatelet activities of Polygonum cuspidatum were investigated by assessing the effect of a 70% ethanol extract of Polygonum cuspidatum on blood coagulation, fibrinolysis, and platelet aggregation. Polygonum cuspidatum showed effective fibrinolytic activity at 10 mg/mL. Polygonum cuspidatum also inhibited adenosine diphosphate induced platelet aggregation. Furthermore, evaluation of anticoagulant activity showed that an extract of Polygonum cuspidatum prolonged coagulation time via activated partial thromboplastin time (APTT). Our results show that Polygonum cuspidatum can be a potential candidate for antiplatelet activity as well as a fibrinolytic agent.