The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium
Abstracts and program XXII Nordic-Baltic congress of cardiology : Reykjavik, Iceland, June 3-5, 2009 / Guest editors : David O. Arnar, Karl Andersen '3-adrenergic receptor (β3-AR) agonists stimulate L-type Ca2+ current (ICa,L) and force of contraction in human atrium. One nonsynonymous single n...
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ftvytmagnusuniv:oai:portalcris.vdu.lt:20.500.12259/42902 2023-05-15T16:52:50+02:00 The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium Marandykina, Alina Zablockaitė, Danguolė Buzaitė, Odeta Treinys, Rimantas Bogdelis, Andrius Jurevičius, Jonas Skeberdis, Vytenis Arvydas IS 2009 p. 94-94 text/xml http://content.karger.com/ProdukteDB/produkte.asp?Aktion=ShowPDF&ArtikelNr=223370&Ausgabe=249596&ProduktNr=223832&filename=223370.pdf en eng Cardiology. Basel, New York : Karger, Vol. 113, suppl. 1, 2009 MEDLINE Science Citation Index Expanded (Web of Science) 00086312 VDU02-000007011 http://content.karger.com/ProdukteDB/produkte.asp?Aktion=ShowPDF&ArtikelNr=223370&Ausgabe=249596&ProduktNr=223832&filename=223370.pdf WOS:000266572800122 Receptors adrenergic beta-3 Calcium channels L-Type Myocardial contraction Heart atria Tezės Clarivate Analytics Web of Science / Theses in Clarivate Analytics Web of Science (T1a) Biologija / Biology (N010) conference paper 2009 ftvytmagnusuniv 2021-03-16T00:45:42Z Abstracts and program XXII Nordic-Baltic congress of cardiology : Reykjavik, Iceland, June 3-5, 2009 / Guest editors : David O. Arnar, Karl Andersen '3-adrenergic receptor (β3-AR) agonists stimulate L-type Ca2+ current (ICa,L) and force of contraction in human atrium. One nonsynonymous single nucleotide polymorphism Trp64Arg of β3-AR has been reported, which causes weaker cAMP accumulation comparing to Trp64Trp one. Therefore, we examined a role of β3-AR polymorphism in β3-AR agonist CGP12177 and BRL37344 induced stimulation of ICa,L and contraction force in isolated atrial myocytes and atrial trabeculae, respectively, obtained from patients undergoing heart surgery in Kaunas University Hospital (KUH). We used the restriction fragment length polymorphism method to analyze DNA samples for β3-AR polymorphism. Whole-cell patch-clamp technique was used to record ICa,L. Isometric contraction of atrial trabeculae was recorded using a mechanoelectrical force transducer. We examined genotype of 41 control DNA and 61 DNA samples obtained from KUH patients. The rate of Trp64Trp and Trp64Arg genotype was 5% and 7%, respectively. In case of Trp64Trp, CGP12177 (1 μM) and BRL37344 (1 μM) stimulated ICa,L by 64±19% (n=10) and 122±27% (n=22) over control, respectively, and contraction force by 13±3.9% (n=9) and 26±2.7% (n=4) over control, respectively. In case of Trp64Arg, CGP12177 (1 μM) and BRL37344 (1 μM) stimulated ICa,L by 33±4.9% (n=7) and 94±11% (n=3) over control, respectively, and contraction force by 4.2±2.2% (n=2) and 5.3±1.8% (n=2) over control, respectively. Our preliminary results indicate that the efficacy of β3-ARdependent stimulation of ICa,L and contraction force may depend on Trp64Arg polymorphism, however to make a final conclusion a number of Trp64Arg cases must be significantly increased Biologijos katedra Kauno medicinos universiteto Kardiologijos institutas Vytauto Didžiojo universitetas Conference Object Iceland Vytautas Magnus University e-Publication Repository (VMU ePub) |
institution |
Open Polar |
collection |
Vytautas Magnus University e-Publication Repository (VMU ePub) |
op_collection_id |
ftvytmagnusuniv |
language |
English |
topic |
Receptors adrenergic beta-3 Calcium channels L-Type Myocardial contraction Heart atria Tezės Clarivate Analytics Web of Science / Theses in Clarivate Analytics Web of Science (T1a) Biologija / Biology (N010) |
spellingShingle |
Receptors adrenergic beta-3 Calcium channels L-Type Myocardial contraction Heart atria Tezės Clarivate Analytics Web of Science / Theses in Clarivate Analytics Web of Science (T1a) Biologija / Biology (N010) Marandykina, Alina Zablockaitė, Danguolė Buzaitė, Odeta Treinys, Rimantas Bogdelis, Andrius Jurevičius, Jonas Skeberdis, Vytenis Arvydas The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium |
topic_facet |
Receptors adrenergic beta-3 Calcium channels L-Type Myocardial contraction Heart atria Tezės Clarivate Analytics Web of Science / Theses in Clarivate Analytics Web of Science (T1a) Biologija / Biology (N010) |
description |
Abstracts and program XXII Nordic-Baltic congress of cardiology : Reykjavik, Iceland, June 3-5, 2009 / Guest editors : David O. Arnar, Karl Andersen '3-adrenergic receptor (β3-AR) agonists stimulate L-type Ca2+ current (ICa,L) and force of contraction in human atrium. One nonsynonymous single nucleotide polymorphism Trp64Arg of β3-AR has been reported, which causes weaker cAMP accumulation comparing to Trp64Trp one. Therefore, we examined a role of β3-AR polymorphism in β3-AR agonist CGP12177 and BRL37344 induced stimulation of ICa,L and contraction force in isolated atrial myocytes and atrial trabeculae, respectively, obtained from patients undergoing heart surgery in Kaunas University Hospital (KUH). We used the restriction fragment length polymorphism method to analyze DNA samples for β3-AR polymorphism. Whole-cell patch-clamp technique was used to record ICa,L. Isometric contraction of atrial trabeculae was recorded using a mechanoelectrical force transducer. We examined genotype of 41 control DNA and 61 DNA samples obtained from KUH patients. The rate of Trp64Trp and Trp64Arg genotype was 5% and 7%, respectively. In case of Trp64Trp, CGP12177 (1 μM) and BRL37344 (1 μM) stimulated ICa,L by 64±19% (n=10) and 122±27% (n=22) over control, respectively, and contraction force by 13±3.9% (n=9) and 26±2.7% (n=4) over control, respectively. In case of Trp64Arg, CGP12177 (1 μM) and BRL37344 (1 μM) stimulated ICa,L by 33±4.9% (n=7) and 94±11% (n=3) over control, respectively, and contraction force by 4.2±2.2% (n=2) and 5.3±1.8% (n=2) over control, respectively. Our preliminary results indicate that the efficacy of β3-ARdependent stimulation of ICa,L and contraction force may depend on Trp64Arg polymorphism, however to make a final conclusion a number of Trp64Arg cases must be significantly increased Biologijos katedra Kauno medicinos universiteto Kardiologijos institutas Vytauto Didžiojo universitetas |
format |
Conference Object |
author |
Marandykina, Alina Zablockaitė, Danguolė Buzaitė, Odeta Treinys, Rimantas Bogdelis, Andrius Jurevičius, Jonas Skeberdis, Vytenis Arvydas |
author_facet |
Marandykina, Alina Zablockaitė, Danguolė Buzaitė, Odeta Treinys, Rimantas Bogdelis, Andrius Jurevičius, Jonas Skeberdis, Vytenis Arvydas |
author_sort |
Marandykina, Alina |
title |
The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium |
title_short |
The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium |
title_full |
The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium |
title_fullStr |
The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium |
title_full_unstemmed |
The role of β3-adrenergic receptor polymorphism on regulation of L-type calcium current and force of contraction in human atrium |
title_sort |
role of β3-adrenergic receptor polymorphism on regulation of l-type calcium current and force of contraction in human atrium |
publishDate |
2009 |
url |
http://content.karger.com/ProdukteDB/produkte.asp?Aktion=ShowPDF&ArtikelNr=223370&Ausgabe=249596&ProduktNr=223832&filename=223370.pdf |
op_coverage |
IS |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Cardiology. Basel, New York : Karger, Vol. 113, suppl. 1, 2009 MEDLINE Science Citation Index Expanded (Web of Science) 00086312 VDU02-000007011 http://content.karger.com/ProdukteDB/produkte.asp?Aktion=ShowPDF&ArtikelNr=223370&Ausgabe=249596&ProduktNr=223832&filename=223370.pdf WOS:000266572800122 |
_version_ |
1766043262908366848 |