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Purification and thrombolytic effects in vivo of recombination Nattokinase on carrageenan-induced tail thrombosis in a rat model

Nattokinase is a serine protease with fibrinolytic activity and has been proven clinical efficacy and safety for human use by the oral route. In this study, conducted purified recombinant nattokinase from Bacillus subtillis DB104 strain and thrombolytic effects of nattokinase have been observed in v...

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Published in:Ho Chi Minh City Open University Journal of Science - Engineering and Technology (Online) 2020-08, Vol.8 (1), p.82-91
Main Authors: Tuan, Tran Quoc, Anh, Dinh Thi Lan, Ai, Le Thi Thuy, Hiep, Dinh Minh, Dong, Tran Cat
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Ai, Le Thi Thuy
Hiep, Dinh Minh
Dong, Tran Cat
description Nattokinase is a serine protease with fibrinolytic activity and has been proven clinical efficacy and safety for human use by the oral route. In this study, conducted purified recombinant nattokinase from Bacillus subtillis DB104 strain and thrombolytic effects of nattokinase have been observed in vivo. The result of the enzyme purification by membrane filtration method for enzyme recovery efficiency is 82.45%. Then the enzyme was purified to Q-Sepharose ion exchange chromatography with a purification factor of 1.82 and at a yield of 66.91%. Enzyme activity was 5,457 FU/mg protein. With the carrageenan-induced tail thrombosis in a rat model, results were significantly reduced by 67.3 to 83.6% at oral doses and injected nattokinase compared with the control group at 48 h. At 72 hours the rate increased to 82-89% in the oral dose and up to 91% in the injected dose nattokinase and comparable to 90% for heparin-positive hepatitis.
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subjects bacillus subtilis
carrageenan
purification
recombinant nattokinase
thrombosis
title Purification and thrombolytic effects in vivo of recombination Nattokinase on carrageenan-induced tail thrombosis in a rat model
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