Cardiac volume receptor reflex in borderline hypertensive rats.

Cardiac volume receptor reflex in borderline hypertensive rats.
复制标题

临界高血压大鼠的心脏容量受体反射。

DOI:
10.1161/01.hyp.21.2.222
复制
发表时间:
1993
期刊:
Hypertension (Dallas, Tex. : 1979)
影响因子:
--
通讯作者:
Jones,SY
Jones,SY
中科院分区:
--
文献类型:
--
作者:
DiBona,GF;Jones,SY

文献摘要

参考文献

被引文献

相似文献

随着饮食中NaCl摄入量的增加(8%NaCl),临界高血压大鼠(BHR)发展为高血压,并表现出对静脉等渗盐水体积扩张的反应。过度的利钠作用由同时过度的传出肾交感神经活动的撤回介导,因为先前的肾去神经消除了过度的利钠反应。本研究的目的是研究心脏容量受体反射对高血压大鼠传出肾交感神经活动的控制作用。从4 ~ 16周龄开始分别饲喂1%和8%NaCl。喂食8%NaCl的BHR与喂食1%NaCl的BHR(115 +/- 6 mm Hg,p < 0.05)相比是高血压的(148 +/- 9 mmHg)。在一个协议中,右心房压力和传出肾交感神经活动的测量之前和期间的10%体重的静脉内等渗盐水容量负荷sinocentic-denervated BHR。与1%NaCl BHR相比,8%NaCl BHR显示出对传出肾交感神经活动的更大的最大抑制(-67 +/-4%对对照的-31 +/-3%,p < 0.05)和增益(-22.0 +/-2.3对-9.7 +/-1.7%/mmHg,p < 0.05)。在第二个协议中,传出肾交感神经活动的测量进行sinocentic-denervated BHR之前和期间的中央部分的分段迷走神经的分级频率刺激。(250字处删节)
With increased dietary NaCl intake (8% NaCl), borderline hypertensive rats (BHR) develop hypertension and exhibit an exaggerated natriuresis in response to intravenous isotonic saline volume expansion. The exaggerated natriuresis is mediated by the concurrent exaggerated withdrawal of efferent renal sympathetic nerve activity since prior renal denervation eliminates the exaggerated natriuretic response. It was the objective of the present study to examine cardiac volume receptor reflex control of efferent renal sympathetic nerve activity in BHR made hypertensive by increased dietary NaCl intake. BHR were fed either 1% or 8% NaCl from age 4 to 16 weeks. BHR fed 8% NaCl were hypertensive (148 +/- 9 mmHg) compared with BHR fed 1% NaCl (115 +/- 6 mm Hg, p < 0.05). In one protocol, measurements of right atrial pressure and efferent renal sympathetic nerve activity were made in sinoaortic-denervated BHR before and during a 10% body weight intravenous isotonic saline volume load. Compared with 1% NaCl BHR, 8% NaCl BHR showed both a greater maximal inhibition of efferent renal sympathetic nerve activity (-67 +/- 4% versus -31 +/- 3% of control, p < 0.05) and gain (-22.0 +/- 2.3 versus -9.7 +/- 1.7%/mm Hg, p < 0.05). In a second protocol, measurements of efferent renal sympathetic nerve activity were made in sinoaortic-denervated BHR before and during graded frequency stimulation of the central portion of the sectioned vagus nerve.(ABSTRACT TRUNCATED AT 250 WORDS)
高氯化钠饮食会降低心脏迷走神经传入神经对容量扩张的反应。
DOI: 10.1152/ajpregu.1987.252.4.r687
发表时间: 1987
期刊: The American journal of physiology
影响因子: --
作者:
Dibona,GF;Sawin,LL
通讯作者: Sawin,LL
20世纪80年代以来家庭消费和资产的实证分析
DOI: --
发表时间: 2006
期刊: 総務省統計研修所 リサーチペーパー 第5号
影响因子: --
作者:
元山 斉;山口 幸三;ryoko Morozumi;美添泰人・荒木万寿夫
通讯作者: 美添泰人・荒木万寿夫
正常血压和自发性高血压大鼠左心房的扩张。
DOI: --
发表时间: 1980
期刊: Acta Physiologica Scandinavica
影响因子: --
作者:
S. Ricksten;T. Yao;B. Ljung;P. Thoren
通讯作者: P. Thoren
自发性高血压大鼠中枢α2-肾上腺素能受体的钠反应性。
DOI: 10.1161/01.hyp.11.4.326
发表时间: 1988
期刊: Hypertension (Dallas, Tex. : 1979)
影响因子: --
作者:
Koepke,JP;Jones,S;DiBona,GF
通讯作者: DiBona,GF
清醒自发性高血压大鼠的肾神经活动和过度的尿钠排泄。
DOI: --
发表时间: 1981
期刊: Acta Physiologica Scandinavica
影响因子: --
作者:
S. Ricksten;T. Yao;G. Di Bona;P. Thoren
通讯作者: P. Thoren