The role of brain Na sensitivity in sympathetic hyperactivation in heart failure
The role of brain Na sensitivity in sympathetic hyperactivation in heart failure
批准号:
19890148
负责人:
ITO Koji
金额:
$1.97万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (Start-up)
财政年份:
2007
资助国家:
日本
项目状态:
已结题
起止时间:
2007 至 2008
中文摘要
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英文摘要
研究代表者である伊藤浩司は、今回の研究において、心不全モデル(腹部大動脈bandingによる圧負荷モデル)において、遺伝的に食塩感受性を有さないにも拘らず、食塩摂取に対する交感神経活動の上昇や脳室内高Na投与に対する血圧、心拍数、交感神経活動の上昇が対照群に比べて有意に増強し、結果的に心機能の低下が進行することを明らかにした。さらに、その食塩摂取に対する交感神経活動亢進の機序として、脳内Rho-kinase系→上皮型Naチャネルの機能亢進が関与することを明らかにした。本研究成果は、心不全患者(特に高血圧性心臓病など)における食塩過剰摂取による心不全増悪の機序を解明し、心不全治療の新たなターゲットを提唱する学問的にも社会的にも意義の大きいものと考えられ、循環器系トップジャーナルであるCirculation Research誌に受理された。
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圧負荷左室肥大モデルで高食塩負荷がもたらす左心機能低下に脳内ENaCを介したNa感受性亢進によって生じる交感神経活性化が関与する
通过脑内 ENaC 增加 Na 敏感性引起的交感神经激活与压力负荷左心室肥厚模型中高盐负荷引起的左心功能下降有关
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[伊藤浩司, ほか]
通讯作者:
ほか
Acquisition of Brain Na Sensitivity Contributes to Salt-Induced Sympathoexcitation and Cardiac Dysfunction in Mice With Pressure Overload.
脑钠敏感性的获得有助于压力超负荷小鼠的盐诱导交感兴奋和心脏功能障碍。
DOI:
--
发表时间:
2009
期刊:
Circ Res. 104
影响因子:
--
作者:
[Ito K, Hirooka Y, Sunagawa K.]
通讯作者:
Sunagawa K.
High salt intake deteriorates cardiac function of hypertrophied heart, Possibly via the excessive sympathetic drive.
高盐摄入会恶化肥大心脏的心脏功能,可能是通过过度的交感神经驱动所致。
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[Ito K, et al.]
通讯作者:
et al.
Blockade of brain ENaC attenuated high salt induced cardiac dysfunction of hypertrophied heart via the attenuation of sympathetic activation.
大脑 ENaC 的阻断通过减弱交感神经激活来减轻高盐诱导的肥厚心脏的心功能障碍。
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[Ito K, et al.]
通讯作者:
et al.
High salt intake deteriorates cardiac function of hypertrophied heart, Possibly via the excessive sympathetic drive
高盐摄入会恶化肥大心脏的心脏功能,可能是通过过度的交感神经驱动
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[Ito K, et.al.]
通讯作者:
et.al.
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