• Title/Summary/Keyword: prothrombin time

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Honey Bee Venom (Apis mellifera) Contains Anticoagulation Factors and Increases the Blood-clotting Time

  • Zolfagharian, Hossein;Mohajeri, Mohammad;Babaie, Mahdi
    • Journal of Pharmacopuncture
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    • v.18 no.4
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    • pp.7-11
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    • 2015
  • Objectives: Bee venom (BV) is a complex mixture of proteins and contains proteins such as phospholipase and melittin, which have an effect on blood clotting and blood clots. The mechanism of action of honey bee venom (HBV, Apis mellifera) on human plasma proteins and its anti-thrombotic effect were studied. The purpose of this study was to investigate the anti-coagulation effect of BV and its effects on blood coagulation and purification. Methods: Crude venom obtained from Apis mellifera was selected. The anti-coagulation factor of the crude venom from this species was purified by using gel filtration chromatography (sephadex G-50), and the molecular weights of the anti-coagulants in this venom estimated by using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Blood samples were obtained from 10 rabbits, and the prothrombin time (PT) and the partial thromboplastin time (PTT) tests were conducted. The approximate lethal dose (LD) values of BV were determined. Results: Crude BV increased the blood clotting time. For BV concentrations from 1 to 4 mg/mL, clotting was not observed even at more than 300 seconds, standard deviations $(SDs)={\pm}0.71$; however, clotting was observed in the control group 13.8 s, $SDs={\pm}0.52$. Thus, BV can be considered as containing anti-coagulation factors. Crude BV is composed 4 protein bands with molecular weights of 3, 15, 20 and 41 kilodalton (kDa), respectively. The $LD_{50}$ of the crude BV was found to be $177.8{\mu}g/mouse$. Conclusion: BV contains anti-coagulation factors. The fraction extracted from the Iranian bees contains proteins that are similar to anti-coagulation proteins, such as phospholipase $A_2(PLA_2)$ and melittin, and that can increase the blood clotting times in vitro.

Effects of Sopoongtang on the Cardiovascular System in the Experimental Animals (소풍탕(疎風湯)이 실험동물(實驗動物)의 심혈관계(心血管系)에 미치는 영향(影響))

  • Jeong, Jang-Gyun;Mun, Byeong-Sun
    • The Journal of Internal Korean Medicine
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    • v.16 no.1
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    • pp.197-213
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    • 1995
  • The present experiment was desinged to investigate the effects of Sopungtang water extracts on the Cardiovascular System in the Experimental Animals. Thus, the changes of blood pressure and heart rate were measured after oral administration. Measurments of Mortality rate were observed for measuring the effect of Sopungtang water extract. Sopungtang water extract against pulmonary thromboembolism induced by collagen the mixture(0.1ml/10g, 2mg/kg B.W) plus serotonin(5mg/kg B.W) in mouse. The effects of Sopungtang water extract were examined by observing the change of collagen-induced platelet aggregation, coagulation activity, ex vivo and in vitro fibrinolytic activity of euglobulin fraction in rats. The results were summarized as followings. 1. Sopungtang dropped the blood pressure in spontaneous hypertensive rat. 2. The drug increased the auricular blood flow in rabbit. 3. The drug relaxed the artery contraction by pretreated norepinephrine in rat. 4. The drug inhibited the death rate of mouse which was led to thromboembolism by serotonin and collagen. 5. The drug inhibited the platelet aggregation in rat. 6. The drug prolonged the prothrombin time and activated partial thromboplastin time on the test of plasma coagulation factor activity in rat, but was not valuable. 7. The drug increased the antithrombin activity in rat and the fibrinogen lyses time was reduced and lyses area was increased. 8. Sopungtang reduced fibrinogen lyses time of rat in vitro assay. According to the above mentioned results, Sopungtang increased the blood flow and dropped the blood pressure by the dilation of blood vessel. And the drug presented the antithrombin acivity, inhibited the platelet aggregation.

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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.

Study on the Antiinflammatory, Anticoagulative and Analgesic effects of Sambitang in the experimental animal model (삼비탕(三痺湯)의 항염(抗炎), 항응고(抗凝固) 및 진통효과(鎭痛效果)에 대(對)한 연구(硏究))

  • Rhy, Jun-Kiu;Lee, Young-Goo;Moon, Byung-Soon
    • The Journal of Internal Korean Medicine
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    • v.19 no.2
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    • pp.88-106
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    • 1998
  • This study was designed to elucidate the antiinflammatory, cardiovascular, antithrombotic, and analgesic effect of Sambitang. The antiinflammatory effects was measured by the method of carrageenin induced edema, protein leakage test using CMC-pouch, and the effect of Sambitang on the cardiovascular system was observed by the change of flow rate of Ringer solution in the vascular system in the ear of rabbit, and the contraction and dilatation of rat tail artery. Death rate, platelet aggregation, plasma coagulation activity was observed for the measurement of the anticoagurative effect of Sambitang, and the analgesic effect was measured by the acetic acid method and hot plate method. The result was as follows: 1. Sambitang administration, edema and protein leakage was significantly decreased. 2. The drug increased the auricular blood flow in rabbit. 3. The drug relaxed the artery contraction by pretreated norepinephrine in rat. 4. The drug inhibited the death rate of mouse which was led to thromboembo- lism by serotonin and collagen. 5. The drug inhibited the platelet aggregation in rat. 6. The drug prolonged the prothrombin time and activated partial thromboplastin time on the test of plasma coagulation factor activity in rat, but was not valuable. 7. The slight anagesic effect of Sambitang extract was confirmed by the observation of writhing syndrome, paw licking time, and escape time.

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Effects of Samsaengyeum on the Cardiovascular System in the Experimental Animal (삼생음(三生飮)이 실험동물(實驗動物)의 심혈관계(心血管系) 및 혈류장애개선(血流障碍改善)에 미치는 효과(效果))

  • Jeon, Heui-Jun;Choi, Cheol-Won;Sin, Sun-Ho;Sung, Gang-Kyung;Mun, Byung-Sun
    • The Journal of Korean Medicine
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    • v.18 no.1
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    • pp.299-315
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    • 1997
  • The present experiments were designed to investigate the effects of Samsaengyeum. water extracts on the Cardiovascular System in the Experimental Animals. Thus, the changes of blood pressure and heart rate were measured after oral administration. Measurement of Mortality rate was observed for measuring the effect of Samsaengyeum water extract Samsaengyeum water extract against pulmonary thromboembolism induced by collagen the mixture(0.1me/10g, 2mg/kg B.W) plus serotonin(5mg/kg B.W) in mouse. The effect of Samsaengyeiim water extract was examined by observing the change of collagen-induced platelet aggregation, coagulation activity, ex vivo and in vitro fibrinolytic activity of euglobulin fraction in rats. The results were summarized as followings. 1. Samsaengyeum dropped the blood pressure in spontaneous hypertensive rat. 2. The drug increased the auricular blood flow in rabbit. 3. The drug relaxed the artery contraction by pretreated norepinephrine in rat. 4. The drug inhibited the death rate of mouse which was led to thromboembolism by serotonin and collagen. 5. The drug inhibited the platelet aggregation in rat. 6. The drug prolonged the prothrombin time and activated partial thromboplastin time on the test of plasma coagulation factor activity in rat, but was not valuable. 7. The drug reduced the fibrinogen lyses time and increased the lyses area of rat. 8. Samsaengyeum reduced fibrinogen lyses time of rat in vitro assay. According to the above mentioned results, Samsaengyeum increased the blood flow and dropped the blood pressure by the dilation of blood vessel. And the drug inhibited the platelet aggregation.

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Anti-microbial, Anti-oxidant, and Anti-thrombosis Activities of the Lees of Bokbunja Wine (Rubus coreanus Miquel) (복분자주 주박의 항균, 항산화 및 항혈전 활성)

  • Kim, Mi-Sun;Kang, Dong-Kyoon;Shin, Woo-Chang;Sohn, Ho-Yong
    • Journal of Life Science
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    • v.25 no.7
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    • pp.757-764
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    • 2015
  • The immature fruit of Rubus coreanus Miquel (bokbunja in Korean) is mainly consumed as a fruit wine due to its sour taste and low sugar content. The lees (LBW) remaining after the production of bokbunja wine are discarded as they have no specific usage. The aim of this study was to develop high-value-added biomaterials for functional foods and beauty/health products by investigating the anti-microbial, anti-oxidant, and anti-thrombosis activities of LBW using ethanol and hot water extracts and their subsequent organic solvent fractions. The ethyl acetate (EA) fraction of LBW extracts has a high polyphenol content (413–459 mg/g), and showed strong anti-microbial activity against gram-positive bacteria. The EA fraction also showed excellent radical-scavenging activity against DPPH anion, ABTS cation, and nitrite, with strong reducing power. The polyphenol-enriched EA fraction strongly inhibited thrombin, prothrombin, and blood coagulation factors. The butanol fraction showed a specific inhibition of coagulation factors, as measured in activated partial thromboplastin time assay, which is linked to intrinsic blood coagulation. The butanol fraction also showed strong inhibition of platelet aggregation, at levels comparable to aspirin. The residue of the hot-water extract, which is produced by sequential solvent fractionation of the LBW extract, showed superior inhibition against platelet aggregation when compared to aspirin. Our results suggest that the LBW, which are currently discarded, are a promising source of novel functional foods and beauty/health products.

Ovarian Hematoma After Double Valve Replacement -A Report of Case- (인조판막 이식후의 난소혈종 1예)

  • Ahn, Kwang Phil;Rho, Joon Ryang;Kim, Chong Whan;Suh, Kyung Phill;Lee, Yung-Kyoon
    • Journal of Chest Surgery
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    • v.9 no.2
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    • pp.215-219
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    • 1976
  • Anticoagulation therapy with Warfarin and Dipyridamole is useful after prosthetic heart valve replacement for the prevention of thromboembolic accidents. Here presented a case of right ovarian hematoma, 41 years old, female who has been already treated double valve replacement due to mitral insufficiency with 27 mm $Bj{\ddot{o}}rk-Shiley$ mitral, and 29 mm Hancock tricuspid valve successfully on 27th, April, 1976. Just after the operation, patient was treated the anticoagulation therapy with Dipyridamole 300 mg, and Heparin, and later switched to Warfarin 3.75 mg or 5 mg po, as the maintenance dose. Three and half months after the anticoagulation therapy, patient complained the lower abdominal pain and vaginal spotting and which revealed right ovarian hematoma due to ovulation, manifested due to anticoagulation therapy. Patient was discharged postoperative 15 th day with the maintenance dose 5 mg Warfarin and Dipyridamole 300mg po to maintain the prothrombin time 30%, after the uterus and both. ovaries and both adnexae are resected out for the prevention of the further hemorrhage of ovary.

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Effects of Autotransfusion Using Cell Saver in Cardiovascular Surgery (심혈관수술에서 cell saver를 이용한 자가수혈)

  • 구자홍
    • Journal of Chest Surgery
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    • v.26 no.4
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    • pp.255-259
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    • 1993
  • The efficacy of the autotransfusion system is a reducing the need of intraoperative and postoperative transfusion in cardiovascular surgery. Between January 1990 and December 1991, we experienced 23 cases of autotransfusion using Haemonetic Cell Saver in cardiovascular surgery [Experimental group]. Another 13 cases which were taken similiar operations without Cell Saver during same period [Control group]. The amounts of blood transfused are 4.23 1.84 units in Control group, 2.82 1.84 units in Experimental group. Postoperatively, both groups showed decreased platelet counts, mild prolongation of prothrombin and partial thromboplastin time compred to preoperative value [P<0.001], but there were no significant differences between two group [P=NS]. Plasma hemoglobin was markedly increased in Experimental group compared with Control group [p<0.05]. In Experimental group, amount of average processed blood by Cell Saver was 700ml of which composition was hemoglobin 17mg/dl, hematocrit 50.0%, RBC 5,590,000/ml, WBC 7500/ml, and platelet 40,000/ml. The culture of the processed blood revealed no growth of the organisms. Conclusively, Cell Saver autotransfusion system is a simple, safe, and cost effective method especially in the cases associated with massive bleeding. However, it requires familiarity with system, gentle manipulation of suction tip, and careful selection of candidates to obtain maximal benefits .

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The Effect of the Immediate Postoperative Nutritional Status in Liver Transplant Recipients in SICU on Clinical Outcome (간이식 환자의 수술 후 영양상태가 건강상태에 미치는 영향)

  • Ha, Ji Su;Choi-Kwon, Smi
    • Journal of Korean Biological Nursing Science
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    • v.15 no.4
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    • pp.193-201
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    • 2013
  • Purpose: The purpose of the study was to evaluate the effect of the immediate postoperative nutritional status and calorie adequacy on clinical outcomes in liver transplant recipients. Methods: A total number of 99 patients who received liver transplants were recruited from a tertiary university hospital. Demography, subjective global assessment, clinical outcomes and calorie adequacy were evaluated through personal interviews, electronic medical records and dietary records. Anthropometric measures, body mass index and percent of ideal body weight were also obtained. Results: At admission to the Surgical Intensive Care Unit (SICU), the triceps skinfold thickness and mid-arm muscle circumference were significantly lower in the malnourished group than in the well-nourished group (p<.05, respectively). In the clinical outcomes, transfusion of red blood cells, mechanically ventilated hours, length of stay in the Intensive Care Unit (ICU), length of stay in the hospital, and prothrombin time were significantly higher in the malnourished group than in the well-nourished group (p<.05, respectively). The mechanically ventilated hour was significantly higher in the group with less than 50% of their required energy intake (p<.05). Conclusion: Therefore, it is important to assess the nutritional status of immediate postoperative patients. Furthermore, studies on nutritional interventions are urgently needed to provide adequate nutritional care for patients in ICUs.

Clinical Study of the Effect of Aprotinin for Hemostasis in Open Heart Surgery (개심술시 Aprotinin의 지혈효과에 관한 임상적 고찰)

  • 정성운;김종원
    • Journal of Chest Surgery
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    • v.32 no.4
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    • pp.364-367
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    • 1999
  • Background: The efficacy of the hemostasis of prophylactic aprotinin after cardiac valve replacement was evaluated from January 1994 to December 1996 at Pusan National University Hospital. Material and Method: In a randomized study, 20 patients received aprotinin(2${\times}$106 KIU as a loading dose for 30 minutes after anesthesia, 1${\times}$106 KIU for priming and 5${\times}$105 KIU/hr as a maintenance dose from the completion of loading dose till skin closure) and another 20 untreated patients served as controls. Result: Aprotinin produced a significant reduction in postoperative blood loss compared with controls and significantly decreased total exposure to allogenic blood products compared with the control group(p<0.05). Conclusion: We conclude that aprotinin effectively reduces postoperative blood loss and trasfusion in patient undergoing cardiac valve replacement.

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