TY  - JOUR
AU  - Hou, Hai-Tao
AU  - Wang, Jun
AU  - Wang, Zheng-Qing
AU  - Liu, Xiao-Cheng
AU  - Marinko, Marija
AU  - Novaković, Aleksandra
AU  - Yang, Qin
AU  - He, Guo-Wei
PY  - 2016
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2525
AB  - Background. Graft spasm remains challenging in coronary artery bypass grafting (CABG). Calcium antagonists are commonly used in patients with coronary artery disease. This study investigated the inhibitory effect of third-generation dihydropyridine calcium channel antagonist benidipine on the vasoconstriction induced by various vasoconstrictors in the human internalmammary artery(IMA). Methods. Isolated human IMA rings (N = 65, taken from 37 patients undergoing CABG) were studied in a myograph in 2 ways: the relaxing effect of benidipine on vasoconstrictor-induced precontraction by KCl and U46619 and the depressing effect of benidipine at plasma concentrations on the contraction. Enzyme-linked immunosorbent assay (ELISA) was used to measure the change of the protein related to the L-type calcium channel. Results. Benidipine caused more relaxation in KCl-contracted (86.7% +/- 3.3%; n = 12) than in U46619-contracted (63.8% +/- 5.3%; n = 8; p  lt  0.001) IMA rings. Pretreatment of IMA with plasma concentrations of benidipine (-6.92 log M) significantly depressed subsequent contraction by KCl (from 17.3 +/- 2.7 mN to 7.4 +/- 1.2 mN; n = 6; p  lt  0.05) but did not significantly affect the contraction caused by U46619. Benidipine also caused a decrease of caveolin (CaV) 1.2 protein content (0.55 +/- 0.02 versus 0.63 +/- 0.02 mg/mL; p  lt  0.05). Conclusions. We conclude that in human IMA, the third-generation dihydropyridine calcium channel antagonist benidipine has a potent inhibitory effect on the vasoconstriction mediated by a variety of vasoconstrictors. Use of benidipine in patients undergoing CABG may provide vasorelaxant or antispastic effects in the grafts.
PB  - Elsevier Science Inc, New York
T2  - Annals of Thoracic Surgery
T1  - Effect of Benidipine in Human Internal Mammary Artery and Clinical Implications
VL  - 101
IS  - 5
SP  - 1789
EP  - 1795
DO  - 10.1016/j.athoracsur.2015.10.029
ER  - 

@article{
author = "Hou, Hai-Tao and Wang, Jun and Wang, Zheng-Qing and Liu, Xiao-Cheng and Marinko, Marija and Novaković, Aleksandra and Yang, Qin and He, Guo-Wei",
year = "2016",
abstract = "Background. Graft spasm remains challenging in coronary artery bypass grafting (CABG). Calcium antagonists are commonly used in patients with coronary artery disease. This study investigated the inhibitory effect of third-generation dihydropyridine calcium channel antagonist benidipine on the vasoconstriction induced by various vasoconstrictors in the human internalmammary artery(IMA). Methods. Isolated human IMA rings (N = 65, taken from 37 patients undergoing CABG) were studied in a myograph in 2 ways: the relaxing effect of benidipine on vasoconstrictor-induced precontraction by KCl and U46619 and the depressing effect of benidipine at plasma concentrations on the contraction. Enzyme-linked immunosorbent assay (ELISA) was used to measure the change of the protein related to the L-type calcium channel. Results. Benidipine caused more relaxation in KCl-contracted (86.7% +/- 3.3%; n = 12) than in U46619-contracted (63.8% +/- 5.3%; n = 8; p  lt  0.001) IMA rings. Pretreatment of IMA with plasma concentrations of benidipine (-6.92 log M) significantly depressed subsequent contraction by KCl (from 17.3 +/- 2.7 mN to 7.4 +/- 1.2 mN; n = 6; p  lt  0.05) but did not significantly affect the contraction caused by U46619. Benidipine also caused a decrease of caveolin (CaV) 1.2 protein content (0.55 +/- 0.02 versus 0.63 +/- 0.02 mg/mL; p  lt  0.05). Conclusions. We conclude that in human IMA, the third-generation dihydropyridine calcium channel antagonist benidipine has a potent inhibitory effect on the vasoconstriction mediated by a variety of vasoconstrictors. Use of benidipine in patients undergoing CABG may provide vasorelaxant or antispastic effects in the grafts.",
publisher = "Elsevier Science Inc, New York",
journal = "Annals of Thoracic Surgery",
title = "Effect of Benidipine in Human Internal Mammary Artery and Clinical Implications",
volume = "101",
number = "5",
pages = "1789-1795",
doi = "10.1016/j.athoracsur.2015.10.029"
}

Hou, H., Wang, J., Wang, Z., Liu, X., Marinko, M., Novaković, A., Yang, Q.,& He, G.. (2016). Effect of Benidipine in Human Internal Mammary Artery and Clinical Implications. in Annals of Thoracic Surgery
Elsevier Science Inc, New York., 101(5), 1789-1795.
https://doi.org/10.1016/j.athoracsur.2015.10.029

Hou H, Wang J, Wang Z, Liu X, Marinko M, Novaković A, Yang Q, He G. Effect of Benidipine in Human Internal Mammary Artery and Clinical Implications. in Annals of Thoracic Surgery. 2016;101(5):1789-1795.
doi:10.1016/j.athoracsur.2015.10.029 .

Hou, Hai-Tao, Wang, Jun, Wang, Zheng-Qing, Liu, Xiao-Cheng, Marinko, Marija, Novaković, Aleksandra, Yang, Qin, He, Guo-Wei, "Effect of Benidipine in Human Internal Mammary Artery and Clinical Implications" in Annals of Thoracic Surgery, 101, no. 5 (2016):1789-1795,
https://doi.org/10.1016/j.athoracsur.2015.10.029 . .

TY  - JOUR
AU  - Gao, Ge
AU  - Bai, Xiao-Yan
AU  - Xuan, Chao
AU  - Liu, Xiao-Cheng
AU  - Jing, Wen-Bin
AU  - Novaković, Aleksandra
AU  - Yang, Qin
AU  - He, Guo-Wei
PY  - 2012
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1680
AB  - Background and Aims. Intracellular calcium regulation in endothelial cells depends on transient receptor potential channels (TRPs). Canonical TRPs (TRPCs) are now recognized as the most important Ca2+-permeable cation channels in vascular endothelium and TRPC3 channel is reported to play a role in vasodilation in animal vessels. However, little is known about the role of TRPCs in human arteries. We therefore tested the hypothesis that TRPCs play a role in human arteries. Methods. Cumulative concentration-relaxation curves to acetylcholine (-11 to -4.5 log M) were established in the human internal mammary artery (IMA) rings (n = 42) taken from 28 patients undergoing coronary artery bypass grafting in precontraction induced by U46619 (-8 log M) in the absence or presence of SKF96365 (10 mu mol/L) or Pyr3 (3 mu mol/L). Protein expressions of TRPC3 were determined by Western blot and immunohistochemistry staining. Results. The maximal relaxation induced by acetylcholine was significantly attenuated by the nonspecific cation channels inhibitor, SKF96365 (48.2 +/- 3.7 vs. 66.0 +/- 0.9% in control, p  lt  0.01) or the selective TRPC3 blocker, Pyr3 (58.4 +/- 2.3% vs. 67.7 +/- 1.1% in control, p  lt  0.01). Protein expression of TRPC3 was detected in human 1MA. Conclusions. TRPC3 exists and plays a role in the acetylcholine-induced endothelium-dependent relaxation in the human IMA. This study suggests that TRPC3 may be a potential new target in endothelial protection in patients with endothelial dysfunction such as in patients with coronary artery disease in order to improve the long-term patency of the grafting vessels.
PB  - Elsevier Science Inc, New York
T2  - Archives of Medical Research
T1  - Role of TRPC3 Channel in Human Internal Mammary Artery
VL  - 43
IS  - 6
SP  - 431
EP  - 437
DO  - 10.1016/j.arcmed.2012.08.010
ER  - 

@article{
author = "Gao, Ge and Bai, Xiao-Yan and Xuan, Chao and Liu, Xiao-Cheng and Jing, Wen-Bin and Novaković, Aleksandra and Yang, Qin and He, Guo-Wei",
year = "2012",
abstract = "Background and Aims. Intracellular calcium regulation in endothelial cells depends on transient receptor potential channels (TRPs). Canonical TRPs (TRPCs) are now recognized as the most important Ca2+-permeable cation channels in vascular endothelium and TRPC3 channel is reported to play a role in vasodilation in animal vessels. However, little is known about the role of TRPCs in human arteries. We therefore tested the hypothesis that TRPCs play a role in human arteries. Methods. Cumulative concentration-relaxation curves to acetylcholine (-11 to -4.5 log M) were established in the human internal mammary artery (IMA) rings (n = 42) taken from 28 patients undergoing coronary artery bypass grafting in precontraction induced by U46619 (-8 log M) in the absence or presence of SKF96365 (10 mu mol/L) or Pyr3 (3 mu mol/L). Protein expressions of TRPC3 were determined by Western blot and immunohistochemistry staining. Results. The maximal relaxation induced by acetylcholine was significantly attenuated by the nonspecific cation channels inhibitor, SKF96365 (48.2 +/- 3.7 vs. 66.0 +/- 0.9% in control, p  lt  0.01) or the selective TRPC3 blocker, Pyr3 (58.4 +/- 2.3% vs. 67.7 +/- 1.1% in control, p  lt  0.01). Protein expression of TRPC3 was detected in human 1MA. Conclusions. TRPC3 exists and plays a role in the acetylcholine-induced endothelium-dependent relaxation in the human IMA. This study suggests that TRPC3 may be a potential new target in endothelial protection in patients with endothelial dysfunction such as in patients with coronary artery disease in order to improve the long-term patency of the grafting vessels.",
publisher = "Elsevier Science Inc, New York",
journal = "Archives of Medical Research",
title = "Role of TRPC3 Channel in Human Internal Mammary Artery",
volume = "43",
number = "6",
pages = "431-437",
doi = "10.1016/j.arcmed.2012.08.010"
}

Gao, G., Bai, X., Xuan, C., Liu, X., Jing, W., Novaković, A., Yang, Q.,& He, G.. (2012). Role of TRPC3 Channel in Human Internal Mammary Artery. in Archives of Medical Research
Elsevier Science Inc, New York., 43(6), 431-437.
https://doi.org/10.1016/j.arcmed.2012.08.010

Gao G, Bai X, Xuan C, Liu X, Jing W, Novaković A, Yang Q, He G. Role of TRPC3 Channel in Human Internal Mammary Artery. in Archives of Medical Research. 2012;43(6):431-437.
doi:10.1016/j.arcmed.2012.08.010 .

Gao, Ge, Bai, Xiao-Yan, Xuan, Chao, Liu, Xiao-Cheng, Jing, Wen-Bin, Novaković, Aleksandra, Yang, Qin, He, Guo-Wei, "Role of TRPC3 Channel in Human Internal Mammary Artery" in Archives of Medical Research, 43, no. 6 (2012):431-437,
https://doi.org/10.1016/j.arcmed.2012.08.010 . .