• Title/Summary/Keyword: Viper venom

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The Study on the Snake by TOXICON (사독 관련논문의 유형분석(TOXICON 1990-2000))

  • Kim, Sung-Wook;Kwon, Ki-Rok;Kim, Kwang-Ho
    • Journal of Pharmacopuncture
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    • v.6 no.2
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    • pp.165-177
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    • 2003
  • The study was carried out to investigate the researches of Snake which was published papers in the TOXlCON(1990-2000), one of the most famous Journal of toxicology. And the results were as follows : 1. The number related with Snake is 195papers. 2. There were great papers related wih Cobra, and next is Tigris, Viper, etc. 3. There were great papers related wih protein in the composition of snake venom. 4. There were great papers related wih neurotoxin in the research of poisonous character. 5. There were great papers related wih Viper according to the anticoagulation. 6 Eight papers were published to study the immune response of snake venom. 7. The papers of molecular study of snake venom were seven. 8. The papers of anti-snake venom study were three.

Mechanisms of Russell's Viper Venom Toxicity on Renal Function; Reversal by Antivenom

  • Chaiyabutr, Narongsak;Napathorn, Sophon;Sitprija, Visith
    • Toxicological Research
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    • v.17
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    • pp.117-125
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    • 2001
  • Envenoming by Russells viper causes a broad spectrum of renal impairment. Renal failure is an important complication in patients bitten by Russells viper. Experimental work in animals and in vitro has elucidated pathophysiological mechanisms that contribute to life threatening complications and have suggested possibilities for therapeutic intervention. The evidence in experimental animals regarding mechanisms of venom action in relation to changes in either extrarenal or intrarenal factors is presented. The cardiovascular system and renal hemodynamics are affected by venom. Reductions of renal function including renal hemodynamics are associated directly with changes in general circulation during envenomation. Possible endogenous mechanisms for releasing the hormone inducing renal vasoconstriction after envenomation are evident. Hormonal factor such as the catecholamine, prostaglandin and renin angiotensin systems induce these changes. Direct nephrotoxicity of venom action is studied in the isolated per-fused kidney. Characteristic polarization of the cell membrane, changes of mitochondrial activity and Na-K ATPase in renal tubular cells are observed. Changes in renal function and the cardiovascular system are observed of ter envenomation and are reversed by the administration of Russells viper antivenom (purified equine immunoglobulin, $Fab_2$ fragment). The neutralizing effects are more efficient when the intravenous injection of antivenom is given within 30 min after the envenomation.

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Qualitative Analysis of Proteins in Two Snake Venoms, Gloydius Blomhoffii and Agkistrodon Acutus

  • Ha, Su-Jeong;Choi, Yeo-Ok;Kwag, Eun-Bin;Kim, Soo-Dam;Yoo, Hwa-seung;Kang, In-Cheol;Park, So-Jung
    • Journal of Pharmacopuncture
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    • v.25 no.1
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    • pp.52-62
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    • 2022
  • Objectives: Snake venom is a complex mixture of various pharmacologically active substances, such as small proteins, peptides, and organic and mineral components. This paper aims to identify and analyse the proteins in common venomous snakes, such as Gloydius blomhoffii (G. blomhoffii) and Agkistrodon acutus (A. acutus), in Korea. Methods: We used mass spectrometry, electrophoresis, N-terminal sequencing and in-gel digestion to analyse the proteins in these two snake venoms. Results: We identified eight proteins in G. blomhoffii venom and four proteins in A. acutus venom. The proteins detected in G. blomhoffii and A. acutus venoms were phospholipase A2, snake venom metalloproteinase and cysteine-rich secretory protein. Snake C-type lectin (snaclec) was unique to A. acutus venom. Conclusion: These data will contribute to the current knowledge of proteins present in the venoms of viper snakes and provide useful information for investigating their therapeutic potential.

Evaluation of Anti-venom effect of Tiryaq-e-arba in rabbit models

  • Ahsan, Mohd. Tarique;Rani, Seema
    • CELLMED
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    • v.10 no.4
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    • pp.30.1-30.4
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    • 2020
  • Background: Tiryaq-e-arba is a polyherbal Unani antidote/antivenom formulation used in the management of poisoning due to snake bite, scorpion bite as well as in cold poisons since time immemorial. Objectives: Tiryaq-e-arba was not evaluated scientifically before this study carried out, therefore it was studied for antivenom activity by testing on plasma fibrinogen level in Russell's Viper envenomation in rabbits. Material &Methods: The anti-venom activity of the test drug was studied by observing its effect on plasma fibrinogen level in Russell's Viper envenomation in rabbits by the method of Netelson. Results: The plasma fibrinogen level was found to be 171±665.04 mg/100 ml of blood, 36.18±1.12 mg/100 ml of blood, 33.14±0.52 mg/100 ml of blood and 17.9±1.65 mg/100 ml of blood at 0, 1, 3 and 6 hours respectively in control animals while in the test animal it was found to be 157.13±3.44 mg/100 ml of blood, 41.13±2.69 mg/100 ml of blood, 62.09±1.65 mg/100 ml of blood and 54.39±0.73 mg/100 ml of blood respectively. The test showed that though the plasma fibrinogen level in the test lower at 0 hour but it was greater in the control animals at 1, 3 and 6 hours. The increase in plasma fibrinogen level in the test animals at 3 and 6 hours was statistically significant (P<0.001). Conclusions: The finding of the present study was that Tiryaq-e-arba possesses antivenom activity which scientifically support the Unani claim that it is Dafe-Sumoom-al-Hevan (Antivenom or Antidote) and the use of this preparation in corresponding diseases.

Evaluation of Anticoagulant Activity of Recombinant Hirudin (유전자 재조합에 의해 제조된 하루딘의 항응고 작용)

  • 김영식;엄은미;정정숙;정춘식;정기화;손정훈;최의성;이상기
    • Biomolecules & Therapeutics
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    • v.1 no.2
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    • pp.166-170
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    • 1993
  • Hirudin is a potent inhibitor of thrombin, which was originally obtained from the medicinal leech (Hirudo medicinalis) Now it is being produced through the recombinant technology on a large scale. Recombinant hirudin has been assayed for the anticoagulant activity by the measurement of clotting time and the inhibition of thrombin actvity using a chromogenic substrate. The assay range of partial thromboplastin time and thrombin time is within $0.2{\sim}1.0 {\mu}g/mι.$ Thrombin time is more sensitive to the measurement of clot. Ex vivo study showed the level of hirudin in rat plasma was highest in 10 min and then it was eliminated slowly. The half-life of r-hirudin was 80~110 min depending on the assay methods. Intraveneous injection of russel viper venom was used for thrombus induction combined with vents cava ligation. Inhibition of venous thrombosis was observed with i.v. hirudin. It was dependent on the concentration of hirudin.

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Successful Live Birth of Woman with Antiphospholipid Syndrome (Antiphospholipid Syndrome 산모에서 출산 1례)

  • Lee, Ho-Yeul;Seo, Jung-Ho;Lee, Sang-Won;Lee, Young-Gi;Koh, Min-Whan;Lee, Tae-Hyung;Lee, Sung-Ku
    • Journal of Yeungnam Medical Science
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    • v.13 no.1
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    • pp.141-145
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    • 1996
  • Habitual pregnancy loss has been defined as three or more consecutive spontaneous abortions. The rate of recurrent pregnancy loss is 2% to 5% of reproducible women. Half of this failure can be explained by genetic, hormonal, infectious, and anatomic factors. And eighty percent of the unexplained failures are proposed to have an immunologic cause. The antiphospholipid antibodies are characterized by prolonged phospholipid-dependent coagulation test (known as APTT or Russel viper venom), thrombosis, thrombocytopenia, and fetal loss. The association of antiphospholipid antibodies with one or more of these characteristic clinical features has been termed the antiphospholipid syndrome. We have experienced a case of successful live birth after treated a woman with heparin and aspirin who has experienced spontaneous abortion four times with antiphospholipid antibodies and present it with the review of literature.

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Evaluation of the in vivo Antithrombotic, Anticoagulant and Fibrinolytic Activities of Lumbricus rubellus Earthworm Powder

  • Hahn, Bum-Soo;Jo, You-Young;Yang, Kyung-Youl;Wu, Song-Ji;Pyo, Mi-Kyung;Yunchoi, Hye-Sook;Kim, Yeong-Shik
    • Archives of Pharmacal Research
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    • v.20 no.1
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    • pp.17-23
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    • 1997
  • A saline suspension of Lumbricus rubellus earthworm powder (EWP) was administered to rats (1 g/kg/day) orally for 15 days to evaluate an oral effectiveness for thrombotic disorders. Blood was drawn at 2-day interval after the administration. Several parameters for antithrombotic, anticoagulant and fibrinolytic activities were measured, including platelet aggregation, clotting time, plasmin activity and the levels of FDP (fibrin/fibrinogen degradation products), D-dimer, and t-PA antigen. It did not affect platelet aggregation induced by ADP and collagen but anticoagulant activity (aPTT and TT) was gradually increased to two-folds for the first 5 days of administration and back to normal. Fibrinolytic activity of euglobulin fraction was highest on the 11 th day after the administration. The level of FDP was elevated to be comparable to the positve control$ (5-10 {\mu}g/ml)$ after 9-day treatment. Oral administration of the EWP could also reduce the formation of venous thrombus induced with viper venom. Complete blood count (CBC) profiles were within normal ranges except for a slight increase in white blood cells after the oral administration for 15 days. These results suggested that the EWP may be valuable for the prevention and/or treatment of thrombotic diseases.

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A Study of Lupus Anticoagulants and Anticardiolipin Antibodies in Patients with Infertility and Recurrent Spontaneous Abortion (불임환자와 반복자연유산 환자에서 루프스 항응고인자와 항카디오리핀 항체에 대한 연구)

  • Nam, Yoon-Sung;Cha, Kwang-Yul;Baek, Jin-Young;Kim, Nam-Keun;Kang, Myung-Seo;Oh, Do-Yeon
    • Clinical and Experimental Reproductive Medicine
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    • v.29 no.1
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    • pp.29-35
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    • 2002
  • Objective : To report the prevalence of lupus anticoagulants and anticardiolipin antibodies in patients with recurrent spontaneous abortion and infertility. Material and Method: Lupus anticoagulants and anticardiolipin antibodies were analyzed by Diluted Russell's Viper Venom Test (DRVVT) and solid phase enzyme immunoassay, respectively. Results : In 200 patients with infertility, there were 6 cases (3%) with positive lupus anticoagulants or anticardiolipin antibodies. Of these, 3 patients (1.5%) showed positive lupus anticoagulants and anticardiolipin antibodies, respectively. In 120 patients with recurrent spontaneous abortion, there were 13 cases (10.8%) of positive lupus anticoagulants or anticardiolipin antibodies. Of these, one patient (1%) showed lupus anticoagulants and 12 patients (10%) showed anticardiolipin antibodies. But in two groups, there was no cases with positive lupus anticoagulants and anticardiolipin antibodies. Conclusion: Lupus anticoagulants and anticardiolipin antibodies are definite cause of recurrent spontaneous abortion. There has been a speculation that they might be associated with infertility and repeated IVF failures. But it was found that the role of lupus anticoagulants and anticardiolipin antibodies in these cases are not clear.

Antioxidant, Antiaging and Antimicrobial Effects of Ethanolic Extract and Ethyl Acetate Fraction from Eclipta prostrata (한련초 에탄올 추출물과 에틸아세테이트 분획물의 항산화, 항노화 및 항균 효과)

  • Lee, Sang Lae;Song, Ba Reum;Shin, Hyuk Soo;Lee, Yun Ju;Park, Soo Nam
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.44 no.3
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    • pp.349-362
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    • 2018
  • An annual plant, Eclipta prostrata (Linn) is a member of the Asteraceae plant family and inhabited in tropical or subtropical regions of the world. Through many previous researches, E. prostrata has been extensively studied for its hepatoprotective effect, antivenom potential against viper venom, antioxidant, hair-growth, wound-healing efficacy and so on. In this study, for better understanding of the potential of E. prostrata as skin protectant, we conducted the experiments evaluating the antioxidant and antiaging efficacy. To this end, 50% ethanolic extract of E. prostrata and its ethyl acetate fraction were prepared and investigated. For the evaluation of antioxidant capacity of the samples, $FSC_{50}$ and $OSC_{50}$ were estimated. As a result, $OSC_{50}$ of ethyl acetate fraction was 2.7 times superior to $OSC_{50}$ of L-ascorbic acid, a well known antioxidant agent. Futhermore E. prostrata showed notable reactive oxygen species (ROS) scavenging effect and protective effect against $H_2O_2$ in the celluar level as well. Especially, in the $^1O_2$ induced hemolysis test, $64{\mu}g/mL$ of ethyl acetate fraction showed greater than 6 times increased retardation effect compare to control which means E. prostrata has remarkable antioxidant capacity. To validate the antiaging effect of the samples, we conducted elastase inhibition assay using elastase solution extracted from human skin fibroblasts, Hs68. As a result, $16{\mu}g/mL$ of each sample showed 6.8% and 14.0% of elastase inhibition respectively. Finally, antimicrobial activity of E. prostrata was assessed to validate the possibility as alternative preservative. From the result, ethyl acetate fraction showed oustanding antimicrobial activity as of methyl paraben, a well known chemical preservative. In conclusion, these results suggest that E. prostrata can be used as natural skin protectant or preservative as natural ingredient in food or cosmetics industry.