Influences of rapid pacing-induced electrical remodeling on pharmacological manipulation of the atrial refractoriness in rabbits.
Influences of rapid pacing-induced electrical remodeling on pharmacological manipulation of the atrial refractoriness in rabbits.
复制标题
快速起搏引起的电重塑对家兔心房不应期药理学操作的影响。
DOI:
10.1016/j.jphs.2016.02.007
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发表时间:
2016
影响因子:
3.5
通讯作者:
Takahara A.
中科院分区:
文献类型:
--
作者:
Chiba T;Kondo N;Takahara A.
Electrical remodeling plays a pivotal role in maintaining the reentry during atrial fibrillation. In this study, we assessed influence of electrical remodeling on pharmacological manipulation of the atrial refractoriness in rabbits. We used an atrial electrical remodeling model of the rabbit, subjected to rapid atrial pacing (RAP; 600 beats/min) for 2–4 weeks, leading to shortening of atrial effective refractory period (AERP). Intravenous administration ofdl-sotalol (6 mg/kg), bepridil (1 mg/kg), amiodarone (10 mg/kg) or vernakalant (3 mg/kg) significantly prolonged the AERP both in the control and RAP rabbits. The extents in the RAP rabbits were similar to those in the control animals. On the other hand, prolonging effects of intravenously administered ranolazine (10 mg/kg) or tertiapin-Q (0.03 mg/kg) on the AERP in the RAP rabbits were more potent than those in the control animals. These results suggest that rapid pacing-induced electrical remodeling effectively modified the prolonging effects of ranolazine and tertiapin-Q on the AERP in contrast to those of clinically available antiarrhythmic drugs,dl-sotalol, bepridil amiodarone and vernakalant.
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影响因子:
--
作者:
M. Beaughard;M. Michelin;J. Tisne;J. Lamar
通讯作者:
J. Lamar
影响因子:
--
作者:
N. Voigt;I. Abu;J. Heijman;D. Dobrev
通讯作者:
D. Dobrev
DOI:
10.1111/j.1540-8167.2005.50028.x
发表时间:
2005-11-01
影响因子:
2.7
作者:
Fedida, D;Orth, PMR;Beatch, GN
通讯作者:
Beatch, GN
影响因子:
4.8
作者:
S. Lévy
通讯作者:
S. Lévy
影响因子:
4.9
作者:
Guata Yoro Sy;D. Urošević;L. Fellmann;H. Greney;P. Bousquet;J. Feldman
通讯作者:
J. Feldman