Treating neonatal hypoxic-ischemic encephal opathy with substances that exist in the placenta and cord blood
用胎盘和脐带血中存在的物质治疗新生儿缺氧缺血性脑病
基本信息
- 批准号:22890254
- 负责人:
- 金额:$ 1.96万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Research Activity Start-up
- 财政年份:2010
- 资助国家:日本
- 起止时间:2010 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Progesterone and its metabolite, allopregnanolone, are neurosteroids that are present at high concentrations in fetal brains. Allopregnanolone is a potent positive modulator ofγ-aminobutyric acid A(GABA_A) receptor function. We examined the effect of exogenous administration of these steroids on hypoxic-ischemic encephalopathy in immature rats. Both progesterone and allopregnanolone significantly exacerbated brain injury in P7(postnatal day 7) and P14 rats, but not in P21 rats. Co-administration of the GABA receptor antagonist, bicuculline, partially A mitigated the exacerbating effect of allopregnanolone. This is in line with the notion that GABA is excitatory for immature neurons, while it is inhibitory for mature neurons.
孕酮及其代谢物异孕酮是胎儿大脑中高浓度存在的神经类固醇。异孕酮是γ-氨基丁酸a (GABA_A)受体功能的有效正调节剂。我们研究了这些类固醇外源性给药对未成熟大鼠缺氧缺血性脑病的影响。孕酮和异孕酮均显著加重P7(出生后第7天)和P14大鼠脑损伤,但对P21大鼠无显著影响。同时给予GABA受体拮抗剂双库兰,部分减轻了异孕酮的加重作用。这与GABA对未成熟神经元具有兴奋性,而对成熟神经元具有抑制性的概念是一致的。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
低酸素性虚血性脳障害に対するProgesteroneの効果:幼若ラットモデルでの検討
黄体酮对缺氧缺血性脑损伤的影响:幼年大鼠模型研究
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Masahiro Tsuji;Naoya Aoo;Kazuhiro Harada;Yuya Sakamoto;Yoshiharu Akitake;Keiichi Irie;Kenichi Mishima;Tomoaki Ikeda;Michihiro Fujiwara;Masahiro Tsuji;Masahiro Tsuji;辻雅弘
- 通讯作者:辻雅弘
Progesterone and allopregnanolone exacerbate hypoxic-ischemic brain injury in immature rats
- DOI:10.1016/j.expneurol.2011.10.004
- 发表时间:2012-01-01
- 期刊:
- 影响因子:5.3
- 作者:Tsuji, Masahiro;Taguchi, Akihiko;Ikeda, Tomoaki
- 通讯作者:Ikeda, Tomoaki
新生児低酸素性虚血性脳症後、思春期~青年期におけるリハビリ訓練の効果:雌ラットだけが認知機能障害の改善と組織学的脳障害の軽減を呈した
新生儿缺氧缺血性脑病后青春期和青年期康复训练的效果:仅雌性大鼠表现出认知功能障碍的改善和组织学脑损伤的减少。
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:辻雅弘;池田智明
- 通讯作者:池田智明
Progesterone and allopregnanolone exacerbate hypoxic-ischemic brain injury in immature rats. Brain 2011
黄体酮和别孕酮会加剧未成熟大鼠的缺氧缺血性脑损伤。
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Masahiro Tsuji;Naoya Aoo;Kazuhiro Harada;Yuya Sakamoto;Yoshiharu Akitake;Keiichi Irie;Kenichi Mishima;Tomoaki Ikeda;Michihiro Fujiwara;Masahiro Tsuji;Masahiro Tsuji;辻雅弘;辻雅弘;Masahiro Tsuji
- 通讯作者:Masahiro Tsuji
Sex differences in the benefits of rehabilitative training during adolescence following neonatal hypoxia-ischemia in rats
- DOI:10.1016/j.expneurol.2010.09.002
- 发表时间:2010-12-01
- 期刊:
- 影响因子:5.3
- 作者:Tsuji, Masahiro;Aoo, Naoya;Fujiwara, Michihiro
- 通讯作者:Fujiwara, Michihiro
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TSUJI Masahiro其他文献
TSUJI Masahiro的其他文献
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{{ truncateString('TSUJI Masahiro', 18)}}的其他基金
The Reformation and The European Theatre--how did the dual mentality of converts change the drama?
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- 批准号:
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23520792 - 财政年份:2011
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$ 1.96万 - 项目类别:
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How Spanish War changed poets' worldview, ideological symbols and metrical scheme
西班牙战争如何改变诗人的世界观、意识形态符号和格律方案
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23520332 - 财政年份:2011
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$ 1.96万 - 项目类别:
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Near-Threshold Fatigue Crack Growth Characteristics and Quantitative Evaluation of Relevant Fracture Surface of Directionally Solidified Superalloy in a Vacuum at Elevated Temperatures
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- 批准号:
20560074 - 财政年份:2008
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$ 1.96万 - 项目类别:
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A Study on Exile as punishment during the Han, Wei and Six Dynasties
汉魏六朝流放刑罚研究
- 批准号:
18520536 - 财政年份:2006
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$ 1.96万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Life Predictions of Fatigue Crack Propagation Considering Fracture Surface Contact Under Residual Stress Fields and Quantitative Evaluation in Fractal Analysis on Fracture Surfaces
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- 批准号:
15560072 - 财政年份:2003
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$ 1.96万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Comprehensive Study on the Penalty System between Tang and Song Period
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- 批准号:
12610368 - 财政年份:2000
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Grant-in-Aid for Scientific Research (C)
Life Prediction Method and Experiments of Three-Dimensional Fatigue Cracks Propagating in Inhomogeneous Materials and Residual Stress Fields
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- 批准号:
11650091 - 财政年份:1999
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$ 1.96万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Life Prediction of Three-Dimensional Fatigue Crack Propagation in Residual Stress Fields with PMMA
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- 批准号:
03650062 - 财政年份:1991
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$ 1.96万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)