首页> 外文期刊>Life sciences >The effect of a neuropeptide y antagonist, BIBP 3226, on short-term arterial pressure control in conscious unrestrained rats with congestive heart failure
【24h】

The effect of a neuropeptide y antagonist, BIBP 3226, on short-term arterial pressure control in conscious unrestrained rats with congestive heart failure

机译:神经肽y拮抗剂BIBP 3226对有意识的,不受约束的充血性心力衰竭大鼠短期动脉压控制的作用

获取原文
获取原文并翻译 | 示例
           

摘要

The effects of an neuropeptide Y (NPY) Y1-receptor antagonist (BIBP 3226) on mean arterial pressure (MAP) and heart rate were investigated in conscious unrestrained rats with chronic congestive heart failure. The rats were randomly assigned to 2 groups, and received either BIBP 3226 or its inactive enantiomer (BIBP 3435) as an intravenous infusion (6 mg/kg/h for 1.5 h, respectively). Before, during and after the infusion, rats were stressed with a jet of air and received a bolus injection of NPY (2 nmol/kg iv.). There was no difference between the 2 groups in resting MAP and heart rate before, during or after infusion (BIBP 3226 vs. BIBP 3435). The effects of exogenous NPY on MAP were significantly attenuated in BIBP 3226 group during and 1 h after the infusion (p < 0.05). The tissue NPY levels in heart, adrenal gland and kidney in heart failure rats were not different from those in sham-operated rats. The results suggest that Y1-receptor mechanisms are of minor importance in the short-term control of basal MAP and heart rate in conscious unrestrained rats with congestive heart failure.
机译:研究了神经肽Y(NPY)Y1受体拮抗剂(BIBP 3226)对有意识的,不受约束的慢性充血性心力衰竭大鼠的平均动脉压(MAP)和心率的影响。将大鼠随机分为2组,并以静脉输注方式分别接受BIBP 3226或非活性对映体(BIBP 3435)(6 mg / kg / h持续1.5 h)。在输注之前,之中和之后,用空气喷射给大鼠施加压力并接受大剂量NPY(2nmol / kg iv。)的推注。两组在输注之前,期间或之后的静息MAP和心率无差异(BIBP 3226与BIBP 3435)。在输注过程中和输注后1 h,BIBP 3226组中外源性NPY对MAP的影响均显着减弱(p <0.05)。心力衰竭大鼠心脏,肾上腺和肾脏的组织NPY水平与假手术大鼠无差异。结果表明,Y1受体机制在短期控制基础性MAP和心律对自觉无节制充血性心力衰竭的大鼠中次要作用较小。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号