TY  - JOUR
AU  - Pavlović, Milan
AU  - Apostolović, Svetlana
AU  - Stokanović, Dragana
AU  - Lilić, Jelena
AU  - Konstantinović, Sandra S.
AU  - Zvezdanović, Jelena B.
AU  - Marinković, Valentina
AU  - Nikolić, Valentina N.
PY  - 2018
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3094
AB  - Background A significant number of ischemic events occur even when adhering to dual antiplatelet therapy including aspirin and clopidogrel. Objectives The aim of our study was to determine predictors of long-term patient clinical outcome, among variables such as prodrug clopidogrel and intermediary metabolite 2-oxoclopidogrel concentrations, as well as patients' clinical characteristics. Setting Department for the Treatment of Acute Coronary Syndrome in tertiary teaching hospital, Serbia. Methods This study enrolled 88 consecutive patients with first STEMI, treated with primary PCI, within 6h of the chest pain onsetand followed them 40 months. On the third day of hospitalization, blood samples were collected from each patient to measure clopidogrel and its metabolite 2-oxo-clopidogrel concentration by UHPLC-DAD-MS method. Main outcome measure Mortality from cardiovascular causes, nonfatal myocardial infarction, nonfatal stroke or hospitalization for urgent myocardial revascularization or heart failure. Results The composite clinical outcome of cardiovascular mortality, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for urgent myocardial revascularization or heart failure, was registered in 31 patients (35.2%) during the 40-month follow-up. Lower clopidogrel (p lt 0.05) and dose-adjusted clopidogrel concentrations (p lt 0.05) were associated with the higher incidence of composite outcome events. Their low plasma concentrations may be predicted by fentanyl administration (p lt 0.001) and creatinine clearance (p lt 0.01). The decrease in dose-adjusted clopidogrel unit for each ng/ml/mg increases the risk 21.7 times (p lt 0.05). Conclusion Clopidogrel dose-adjusted plasma concentration in STEMI patients, as well as multivessel coronary artery disease, showed significance in predicting an unfavorable composite clinical outcome after 40-month follow-up.
PB  - Springer, Dordrecht
T2  - International Journal of Clinical Pharmacy
T1  - The association of clopidogrel and 2-oxo-clopidogrel plasma levels and the 40 months clinical outcome after primary PCI
VL  - 40
IS  - 6
SP  - 1482
EP  - 1489
DO  - 10.1007/s11096-018-0730-9
ER  - 

@article{
author = "Pavlović, Milan and Apostolović, Svetlana and Stokanović, Dragana and Lilić, Jelena and Konstantinović, Sandra S. and Zvezdanović, Jelena B. and Marinković, Valentina and Nikolić, Valentina N.",
year = "2018",
abstract = "Background A significant number of ischemic events occur even when adhering to dual antiplatelet therapy including aspirin and clopidogrel. Objectives The aim of our study was to determine predictors of long-term patient clinical outcome, among variables such as prodrug clopidogrel and intermediary metabolite 2-oxoclopidogrel concentrations, as well as patients' clinical characteristics. Setting Department for the Treatment of Acute Coronary Syndrome in tertiary teaching hospital, Serbia. Methods This study enrolled 88 consecutive patients with first STEMI, treated with primary PCI, within 6h of the chest pain onsetand followed them 40 months. On the third day of hospitalization, blood samples were collected from each patient to measure clopidogrel and its metabolite 2-oxo-clopidogrel concentration by UHPLC-DAD-MS method. Main outcome measure Mortality from cardiovascular causes, nonfatal myocardial infarction, nonfatal stroke or hospitalization for urgent myocardial revascularization or heart failure. Results The composite clinical outcome of cardiovascular mortality, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for urgent myocardial revascularization or heart failure, was registered in 31 patients (35.2%) during the 40-month follow-up. Lower clopidogrel (p lt 0.05) and dose-adjusted clopidogrel concentrations (p lt 0.05) were associated with the higher incidence of composite outcome events. Their low plasma concentrations may be predicted by fentanyl administration (p lt 0.001) and creatinine clearance (p lt 0.01). The decrease in dose-adjusted clopidogrel unit for each ng/ml/mg increases the risk 21.7 times (p lt 0.05). Conclusion Clopidogrel dose-adjusted plasma concentration in STEMI patients, as well as multivessel coronary artery disease, showed significance in predicting an unfavorable composite clinical outcome after 40-month follow-up.",
publisher = "Springer, Dordrecht",
journal = "International Journal of Clinical Pharmacy",
title = "The association of clopidogrel and 2-oxo-clopidogrel plasma levels and the 40 months clinical outcome after primary PCI",
volume = "40",
number = "6",
pages = "1482-1489",
doi = "10.1007/s11096-018-0730-9"
}

Pavlović, M., Apostolović, S., Stokanović, D., Lilić, J., Konstantinović, S. S., Zvezdanović, J. B., Marinković, V.,& Nikolić, V. N.. (2018). The association of clopidogrel and 2-oxo-clopidogrel plasma levels and the 40 months clinical outcome after primary PCI. in International Journal of Clinical Pharmacy
Springer, Dordrecht., 40(6), 1482-1489.
https://doi.org/10.1007/s11096-018-0730-9

Pavlović M, Apostolović S, Stokanović D, Lilić J, Konstantinović SS, Zvezdanović JB, Marinković V, Nikolić VN. The association of clopidogrel and 2-oxo-clopidogrel plasma levels and the 40 months clinical outcome after primary PCI. in International Journal of Clinical Pharmacy. 2018;40(6):1482-1489.
doi:10.1007/s11096-018-0730-9 .

Pavlović, Milan, Apostolović, Svetlana, Stokanović, Dragana, Lilić, Jelena, Konstantinović, Sandra S., Zvezdanović, Jelena B., Marinković, Valentina, Nikolić, Valentina N., "The association of clopidogrel and 2-oxo-clopidogrel plasma levels and the 40 months clinical outcome after primary PCI" in International Journal of Clinical Pharmacy, 40, no. 6 (2018):1482-1489,
https://doi.org/10.1007/s11096-018-0730-9 . .

TY  - JOUR
AU  - Troter, Dragan Z.
AU  - Todorović, Zoran B.
AU  - Đokić-Stojanović, Dušica R.
AU  - Đorđević, Biljana S.
AU  - Todorović, Vanja
AU  - Konstantinović, Sandra S.
AU  - Veljković, Vlada B.
PY  - 2017
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2851
AB  - This paper reports the physicochemical (density, dynamic viscosity, electrical conductivity and refractive index) and the thermodynamic (thermal expansion coefficient, molecular volume, lattice energy and heat capacity) properties of several choline chloride (ChCl) based deep eutectic solvents (DESs), with 1:2 mole ratio, respectively:ChCl:propylene glycol, ChCl:1,3-dimethyl-urea and ChCl:thiourea, at atmospheric pressure as a function of temperature over the range of 293.15-363.15 K. Their properties were also compared with those of some already characterized ChCl-based DESs, namely ChCl:ethylene glycol, ChCl:glycerol and ChCl:urea (1:2 mole ratio). Density, viscosity and refractive index of all DESs decrease with the increasing temperature while the electrical conductivity increases. Viscosity and conductivity of the tested DESs were fitted by both Arrhenius-type and Vogel-Tamman-Fulcher equations. The changes of molar enthalpy, entropy and Gibbs energy of activation, determined using the Eyring theory, demonstrated the interactional factor as predominant over the structural factor for all DES systems. The fractional Walden rule, used to correlate molar conductivity and viscosity, showed an excellent linear behaviour. It was shown that ChCl:propylene glycol DES had properties similar to ChCl:ethylene glycol and ChCl:glycerol DESs. However, the properties (density, viscosity and electrical conductivity) of ChCl:1,3-dimethylurea and ChCl::thiourea DESs were inferior to those of the ChCl:urea DES.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - The physicochemical and thermodynamic properties of the choline chloride-based deep eutectic solvents
VL  - 82
IS  - 9
SP  - 1039
EP  - 1052
DO  - 10.2298/JSC170225065T
ER  - 

@article{
author = "Troter, Dragan Z. and Todorović, Zoran B. and Đokić-Stojanović, Dušica R. and Đorđević, Biljana S. and Todorović, Vanja and Konstantinović, Sandra S. and Veljković, Vlada B.",
year = "2017",
abstract = "This paper reports the physicochemical (density, dynamic viscosity, electrical conductivity and refractive index) and the thermodynamic (thermal expansion coefficient, molecular volume, lattice energy and heat capacity) properties of several choline chloride (ChCl) based deep eutectic solvents (DESs), with 1:2 mole ratio, respectively:ChCl:propylene glycol, ChCl:1,3-dimethyl-urea and ChCl:thiourea, at atmospheric pressure as a function of temperature over the range of 293.15-363.15 K. Their properties were also compared with those of some already characterized ChCl-based DESs, namely ChCl:ethylene glycol, ChCl:glycerol and ChCl:urea (1:2 mole ratio). Density, viscosity and refractive index of all DESs decrease with the increasing temperature while the electrical conductivity increases. Viscosity and conductivity of the tested DESs were fitted by both Arrhenius-type and Vogel-Tamman-Fulcher equations. The changes of molar enthalpy, entropy and Gibbs energy of activation, determined using the Eyring theory, demonstrated the interactional factor as predominant over the structural factor for all DES systems. The fractional Walden rule, used to correlate molar conductivity and viscosity, showed an excellent linear behaviour. It was shown that ChCl:propylene glycol DES had properties similar to ChCl:ethylene glycol and ChCl:glycerol DESs. However, the properties (density, viscosity and electrical conductivity) of ChCl:1,3-dimethylurea and ChCl::thiourea DESs were inferior to those of the ChCl:urea DES.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "The physicochemical and thermodynamic properties of the choline chloride-based deep eutectic solvents",
volume = "82",
number = "9",
pages = "1039-1052",
doi = "10.2298/JSC170225065T"
}

Troter, D. Z., Todorović, Z. B., Đokić-Stojanović, D. R., Đorđević, B. S., Todorović, V., Konstantinović, S. S.,& Veljković, V. B.. (2017). The physicochemical and thermodynamic properties of the choline chloride-based deep eutectic solvents. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 82(9), 1039-1052.
https://doi.org/10.2298/JSC170225065T

Troter DZ, Todorović ZB, Đokić-Stojanović DR, Đorđević BS, Todorović V, Konstantinović SS, Veljković VB. The physicochemical and thermodynamic properties of the choline chloride-based deep eutectic solvents. in Journal of the Serbian Chemical Society. 2017;82(9):1039-1052.
doi:10.2298/JSC170225065T .

Troter, Dragan Z., Todorović, Zoran B., Đokić-Stojanović, Dušica R., Đorđević, Biljana S., Todorović, Vanja, Konstantinović, Sandra S., Veljković, Vlada B., "The physicochemical and thermodynamic properties of the choline chloride-based deep eutectic solvents" in Journal of the Serbian Chemical Society, 82, no. 9 (2017):1039-1052,
https://doi.org/10.2298/JSC170225065T . .