• The Journal of Korean Obstetrics and Gynecology
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• v.21 no.1
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• pp.117-133
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• 2008

Purpose: This study was performed to evaluate anti-thrombotic effects of Hyulbuchukeotanggamibang(HBCT). Methods: It was measured the effects which was given to blood flow rate through the regular volume of glass tube after the blood was diluted five times with ACD soulution. Antithrombotic effect was calculated as a percentage of the experimental animal figure protected from the paralysis of hind legs or death of the mouse that is caused from the administration of platelet aggregation regent. Results: 1. HBCT showed a safety in toxicity of liver. 2. In experiment of anti-thrombotic effect, HBCT inhibited the platelet aggregation induced by ADP and epinephrine, collagen, arachidonic acid as compared with the control group. 3. HBCT inhibited pulmonary embolism induced by collagen and epinephrine (inhibitory rate is 50%). 4. HBCT increased platelet number and fibrinogen amount significantly and also HBCT shortened PT and APTT significantly as compared with the control group in thrombus model induced by dextran. 5. HBCT increased blood flow rate insignificantly as compared with the control group in vivo. Conclusion: These results suggest that HBCT can be used for treating diverse female diseases caused by thrombosis.

• Microbiology and Biotechnology Letters
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• v.47 no.1
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• pp.20-24
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• 2019

Moringa oleifera Lam (MOL) has been used as a traditional medicine to treat various cancers and inflammation. Whereas the bioactivities of the MOL leaf and seed are well reported, the study of the root is still rudimentary. In this study, the ethanol extract of MOL (EEMOL) and its subsequent organic solvent fractions were prepared and their anticoagulation activity in vitro and platelet aggregation inhibitory activity were evaluated. The EEMOL had negligible anticoagulation and strong platelet aggregation activities. However, the hexane and ethyl acetate fractions of EEMOL showed significant inhibition against thrombin, prothrombin, coagulation factors, and platelet aggregation, without hemolytic activity up to 1.0 mg/ml. Our results suggest that the active fractions of MOL root have potential as new anti-thrombosis agents.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.336.2-336.2
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• 2002

Several 1 A-naphthoquinone derivatives have been reported to possess many pharmacological effects such as anti-viral. anti-fungal. anti-cancer and anti-platelet activities. We have reported that 2-chloro-3-［4-(ethyICarbOxy)-phenyl］-amino-1.4-naphthoquinone(NQ12) had a potent inhibitory effect on the platelet aggregation in vitro and thrombosis in vivo. However. little has been known about functional roleot NQ12 on vascular smooth muscle cells (VSMCs). (omitted)

• Microbiology and Biotechnology Letters
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• v.42 no.3
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• pp.258-266
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• 2014

Sweet potato soju (SPS), a form of traditional distilled alcoholic liquor in Korea, is manufactured by the distillation of fermented broth under normal pressure, thus providing it for a uniquely smooth taste infused with the flavor of sweet potato. After distillation, the lees of SPS is produced as by-product and discarded. In this study, the ethanol and hot water extracts of lees of SPS, and their subsequent organic solvent fractions using hexane, ethylacetate (EA), butanol, and water residue were prepared in an effort at the efficient re-use of the lees of SPS. The ethanol extraction yield was 1.36-fold higher than that of the hot water extraction, and the EA fraction revealed the highest total polyphenol content among the solvent fractions. The various extracts and solvent fractions did not demonstrate hemolytic activity at up to 0.5 mg/ml concentrations against human red blood cells. In the bioactivity assay, only the EA fraction displayed a broad spectrum of anti-microbial activity against different pathogenic and food spoilage bacteria, and demonstrated significant anti-coagulation activity by inhibitions of thrombin, prothrombin and blood coagulation factors. Furthermore, only the EA fraction from the hot water extract of the lees of SPS showed anti-platelet aggregation activity, which is comparable to aspirin (a commercially available drug). Our results suggest that the EA fraction of the hot water extract prepared from the lees of SPS has a high potential as a novel resource for anti-microbial and anti-thrombosis agents.

• Journal of Physiology & Pathology in Korean Medicine
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• v.16 no.1
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• pp.181-185
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• 2002

The thrombosis is the category of blood stasis. Blood stasis is a pathologicial state resulting from the reverse or impeded flow of blood in the body or the stagnation of blood flow in local parts as well as abnormal blood outside of the vessles which remains in the body and fails to disperse. Hwao-tang has been reported to have a hypolipidemic effect in patients with hypercholesterolemia, and in highcholesterol-induced experimental models. The present paper reports the effects of HOT on atherosclerosis using a spontaneous experimental model, Kurosawa and Kusanagi-hypercholesterolemic (KHC) rabbits. We have also investigated the pharmacological effect of extracts obtained from HOT on collagen-and ADP-induced blood platelet aggregation, thrombin-induced conversion of fibrinogen and fibrinolysis in in vitro experiments. In conclusion, the protection of extracts of Korean herbs' HOT on the ischemic infarction induced artificially might be involved to their inhibition of thrombotic action.

• Journal of Chest Surgery
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• v.37 no.4
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• pp.369-372
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• 2004

Acute myocardial infarction due to coronary occlusion by emboli originating from the prosthetic valve thrombosis is very rare but fatal disease which needs immediate diagnosis and urgent treatment. We report a case of acute myocardial infarction after left anterior descending embolic occlusion in whom had previous mitral valve replacement. Redo valve replacement following the interventional catheterization and anti platelet therapy lead to successful results.

• Journal of Life Science
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• v.18 no.3
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• pp.357-362
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• 2008

The dried roots of Aralia continentalis Kitagawa is known to have the potential for anti-inflammation and anti-rheumatic, but their effects on thrombosis are not clear. In this study, we evaluated the anti-platelet and antioxidative activities of A. continentalis Kitagawa. Methanol extract and its various fractions of A. continentalis Kitagawa inhibited ADP-induced platelet aggregation, and EtOAc fraction showed strongest inhibition in a concentration-dependent manner with a $IC_{50}$ value of 217.7 ${\mu}g/ml$. Moreover, the EtOAc fraction contained 77.7% of 1,1-diphenyl-2-picrylhydrazyl(DPPH) and 43.1% of 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical-scavenging activity at 0.1 mg/ml. In addition, the methanol and EtOAc fraction dose-dependently inhibited thrombin-stimulated platelet adhesion to collagen or fibrinogen. Collectively, these results suggest that the polyphenol-rich EtOAc fraction from A. continentalis Kitagawa can reduce platelet hyperactivation by scavenging free radicals. Thus, the EtOAc fraction of A. continentalis Kitagawa is a potential source for inhibition of platelet-dependent thrombosis.

• Journal of Ginseng Research
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• v.45 no.4
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• pp.490-497
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• 2021

Background and objective: Synthetic ginsenoside compounds G-Rp (1,3, and 4) and natural ginsenosides in Panax ginseng 20(S)-Rg3, Rg6, F4 and Ro have inhibitory actions on human platelets. However, the inhibitory mechanism of ginsenoside Rk1 (G-Rk1) is still unclear thus, we initiated investigation of the anti-platelet mechanism by G-Rk1 from Panax ginseng. Methodology: Our study focused to investigate the action of G-Rk1 on agonist-stimulated human platelet aggregation, inhibition of platelet signaling molecules such as fibrinogen binding with integrin α_IIbβ₃ using flow cytometry, intracellular calcium mobilization, fibronectin adhesion, dense granule secretion, and thromboxane B2 secretion. Thrombin-induced clot retraction was also observed in human platelets. Key Results: Collagen, thrombin, and U46619-stimulated human platelet aggregation were dose-dependently inhibited by G-Rk1, while it demonstrated a more effective suppression on collagen-stimulated platelet aggregation using human platelets. Moreover, G-Rk1 suppressed collagen-induced elevation of Ca²⁺ release from endoplasmic reticulum, granule release, and α_IIbβ₃ activity without any cytotoxicity. Conclusions and implications: These results indicate that G-Rk1 possess strong anti-platelet effect, proposing a new drug candidate for treatment and prevention of platelet-mediated thrombosis in cardiovascular disease.

• Journal of Pharmacopuncture
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• v.5 no.1 s.8
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• pp.181-188
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• 2002

Objective: Through the literatures on the effects of Buthus martensii Karsch, we are finding out the clinical possibility and revealing the more effctive to intractable diseases. Method: We investigated the literatures of Oriental Medicine and experimental reports about Buthus martensii Karsch. Results: 1. The taste of Buthus martensii Karsch is salty, hot and toxic, and the effect of this is tetanus, headache, facial palsy and convulsion. 2. The venom of Buthus martensii Karsch is anaesthetic and toxic protein, composed of buthotoxin, lecithin, trimethylamine, betaine, taurine, cholesterol, stearic acid and palmitic acid and similar to the snake venom. 3. The pharmacological effects ofButhus martensii Karsch are anti-convulsion, depressor, anesthesia, anti-thrombosis and anti-cancer. 4. Symptoms of Buthotoxin poisoning are local pain, vomiting, fever, hypertension and palpitaion, and critical condition to Dyspnea, coma and death.

• Archives of Pharmacal Research
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• v.19 no.1
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• pp.66-70
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• 1996

Aliphatic esters of protocatechuic acid (PA, 1), vanillic acid (VA, 9) and gallic acid (GA, 18) were prepared and their anti-thrombotic effects were evaluated in the mouse model of thrombosis. The aliphatic groups included methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, n-amyl and cyclohexyl. n-Amyl ester of PA (7), i-propyl and cyclohexyl esters of VA (13 and 17 respectively) and ethyl ester of GA (20) treatment significantly lowered the death rate and increased the recovery from paralysis due to the thrombotic challenge. From the limited analogs available, it was tentatively concluded that the structural conformation, where carboxy oxygen (=O or -O) of the carboxyl group (COOH) at $C_1$ and the oxygen function at $C_3(either\; OH\; or\; OCH_3)$ are closely situated, is favorable for the esters of PA, VA and GA to be more antithrombotic.