Two flavonoids, rutin and hesperidin, were investigated in vitro for anticoagulant activity through coagulation tests: activated partial thromboplastin time (aPTT), prothrombin time (PT) and thrombin time (TT). Only an ethanolic solution of rutin at the concentration of 830 mu M prolonged aPTT, while TT and PT were unaffected. In order to evaluate whether the prolongation of aPTT was due to the decrease of coagulation factors, the experiment with deficient plasma was performed, showing the effects on factors VIII and IX. Since pharmacological activity of flavonoids is believed to increase when they are coordinated with metal ions, complexes of these flavonoids with Al(III) and Cu(II) ions were also tested. The results showed that complexes significantly prolonged aPTT and had no effects on PT and TT. Assay with deficient plasma (plasma having the investigated factor at less then 1%) revealed that complexes could bind to the coagulation factors, what may lead to a non-specific inhibitio...n and aPTT prolongation. An effort was made to correlate stability of complexes with their anticoagulant properties.
TY - JOUR
AU - Kuntić, Vesna
AU - Filipović, Ivana
AU - Vujić, Zorica
PY - 2011
UR - http://farfar.pharmacy.bg.ac.rs/handle/123456789/1450
AB - Two flavonoids, rutin and hesperidin, were investigated in vitro for anticoagulant activity through coagulation tests: activated partial thromboplastin time (aPTT), prothrombin time (PT) and thrombin time (TT). Only an ethanolic solution of rutin at the concentration of 830 mu M prolonged aPTT, while TT and PT were unaffected. In order to evaluate whether the prolongation of aPTT was due to the decrease of coagulation factors, the experiment with deficient plasma was performed, showing the effects on factors VIII and IX. Since pharmacological activity of flavonoids is believed to increase when they are coordinated with metal ions, complexes of these flavonoids with Al(III) and Cu(II) ions were also tested. The results showed that complexes significantly prolonged aPTT and had no effects on PT and TT. Assay with deficient plasma (plasma having the investigated factor at less then 1%) revealed that complexes could bind to the coagulation factors, what may lead to a non-specific inhibition and aPTT prolongation. An effort was made to correlate stability of complexes with their anticoagulant properties.
PB - MDPI, Basel
T2 - Molecules
T1 - Effects of Rutin and Hesperidin and their Al(III) and Cu(II) Complexes on in Vitro Plasma Coagulation Assays
VL - 16
IS - 2
SP - 1378
EP - 1388
DO - 10.3390/molecules16021378
UR - conv_2029
ER -
@article{
author = "Kuntić, Vesna and Filipović, Ivana and Vujić, Zorica",
year = "2011",
abstract = "Two flavonoids, rutin and hesperidin, were investigated in vitro for anticoagulant activity through coagulation tests: activated partial thromboplastin time (aPTT), prothrombin time (PT) and thrombin time (TT). Only an ethanolic solution of rutin at the concentration of 830 mu M prolonged aPTT, while TT and PT were unaffected. In order to evaluate whether the prolongation of aPTT was due to the decrease of coagulation factors, the experiment with deficient plasma was performed, showing the effects on factors VIII and IX. Since pharmacological activity of flavonoids is believed to increase when they are coordinated with metal ions, complexes of these flavonoids with Al(III) and Cu(II) ions were also tested. The results showed that complexes significantly prolonged aPTT and had no effects on PT and TT. Assay with deficient plasma (plasma having the investigated factor at less then 1%) revealed that complexes could bind to the coagulation factors, what may lead to a non-specific inhibition and aPTT prolongation. An effort was made to correlate stability of complexes with their anticoagulant properties.",
publisher = "MDPI, Basel",
journal = "Molecules",
title = "Effects of Rutin and Hesperidin and their Al(III) and Cu(II) Complexes on in Vitro Plasma Coagulation Assays",
volume = "16",
number = "2",
pages = "1378-1388",
doi = "10.3390/molecules16021378",
url = "conv_2029"
}
Kuntić, V., Filipović, I.,& Vujić, Z.. (2011). Effects of Rutin and Hesperidin and their Al(III) and Cu(II) Complexes on in Vitro Plasma Coagulation Assays. in Molecules
MDPI, Basel., 16(2), 1378-1388.
https://doi.org/10.3390/molecules16021378
conv_2029
Kuntić V, Filipović I, Vujić Z. Effects of Rutin and Hesperidin and their Al(III) and Cu(II) Complexes on in Vitro Plasma Coagulation Assays. in Molecules. 2011;16(2):1378-1388.
doi:10.3390/molecules16021378
conv_2029 .
Kuntić, Vesna, Filipović, Ivana, Vujić, Zorica, "Effects of Rutin and Hesperidin and their Al(III) and Cu(II) Complexes on in Vitro Plasma Coagulation Assays" in Molecules, 16, no. 2 (2011):1378-1388,
https://doi.org/10.3390/molecules16021378 .,
conv_2029 .
