The roles of sex hormone and gender difference for spinal cord protection in spinal cord ischemia
性激素及性别差异在脊髓缺血中的脊髓保护作用
基本信息
- 批准号:21591970
- 负责人:
- 金额:$ 2.83万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2009
- 资助国家:日本
- 起止时间:2009 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We evaluated the tissue oxygen partial pressure of spinal cord(PsptO2) following aortic cross-clamping and-unclamping, and then clarified the mechanism of improvement in the PsptO2 following spinal ischemia observed with remote ischemic preconditioning(RIPC) or intravenous estrogen in rabbits. In isoflurane anesthetized rabbits(n=36), we prepared for measurement of PsptO2 following aortic cross-clamping using tissue PO2 monitoring. In the first set of experiment, we allocated 18 animals into 3 groups,(a) control group ; n=6,(b) RIPC group ; n=6,(c) glibenclamide pretreatment(0. 3mg/kg) group ; n=6. In the second set of experiment, we also allocated 18 animals into 3 groups,(d) control group ; n=6,(e) estrogen(17ss estradiol : 20μg) group ; n=6,(f) fulvestrant pretreatment(1mg/kg) group ; n=6. RIPC improved deterioration of the values in PsptO2 at 20 min after aortic cross-clamping and 0, 2, 5 min after aortic unclamp. The improvement was diminished by pretreatment of glibenclamide. Administration of 17s estradiol improved deterioration of the values in PsptO2 at 20 min after aortic cross-clamping and 0, 2, 5 min after aortic unclamp. The improvement was diminished by pretreatment of fulvestrant.In conclusion, after aortic cross-clamping, the RIPC performed improves the deterioration in PsptO2 through the KATP channel activation and 17ss estradiol improves the deterioration in PsptO2 through the estrogen receptor activation.
本文测定了兔主动脉阻断和开放后脊髓组织氧分压(PsptO2)的变化,阐明了远端缺血预适应(RIPC)和静脉注射雌激素改善脊髓缺血后PsptO2的机制。在异氟醚麻醉的兔(n=36)上,我们准备用组织PO2监测主动脉阻断后的PsptO2。在第一组实验中,我们将18只动物分为3组,(A)对照组,(B)RIPC组,n=6,(C)格列本脲(0。在第二组实验中,我们还将18只动物分成3组,(D)对照组,(E)雌激素组(17ss雌二醇:20μg),n=6,(F)福维斯特(1 mg/kg)组,n=6。RIPC改善主动脉阻断后20min、开放后0、2、5min的PsptO2。格列本脲对上述指标的改善作用减弱。17S雌二醇可改善主动脉阻断后20min和开放后0、2、5min PsptO2的变化。结论:主动脉阻断后,RIPC通过激活KATP通道改善PsptO2的恶化,17ss雌二醇通过雌激素受体激活改善PsptO2的恶化。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
プロタミン投与後にアナフィラキシー様ショックを起こした症例
服用鱼精蛋白后过敏性休克一例
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:山田忠則;鬼頭和裕;太田宗一郎;大畠博人;飯田宏樹
- 通讯作者:飯田宏樹
Midazolam suppresses interleukin1 ss-induced interleukin-6 release from rat glial cells
咪达唑仑抑制大鼠神经胶质细胞中白细胞介素 1 SS 诱导的白细胞介素 6 释放
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Tanabe K;Kozawa O;Iida H.
- 通讯作者:Iida H.
Preconditioning with estrogen lmproves the deterioration of the tissue oxygen partial pressure of spinal cord after Aortic Cross-Clamping
雌激素预处理改善主动脉阻断术后脊髓组织氧分压恶化
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Takenaka M;Iida M;Iida H.
- 通讯作者:Iida H.
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IIDA Hiroki其他文献
IIDA Hiroki的其他文献
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Development of Asymmetric Polymer Catalysts Based on Controlled Helical Structure
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Analysis of intracellular mechanisms and related factors regarding spinal protection by remote preoonditioning
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13671570 - 财政年份:2001
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11671489 - 财政年份:1999
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$ 2.83万 - 项目类别:
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