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Chung Shan Medical University
Project/研究計畫(老師)
內皮素A型受體拮抗劑配合運動治療對睡眠呼吸終止症誘發心臟細胞凋亡的療效探討
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內皮素A型受體拮抗劑配合運動治療對睡眠呼吸終止症誘發心臟細胞凋亡的療效探討
Details
Primary Data
Project title
98學年度國家科學及技術委員會補助研究計畫
Acronym
專題研究計畫
Internal ID
NSC98-2314-B040-001-MY3
Principal Investigator
Ting, Hua
Status
research project
Start Date
August 1, 2009
End Date
July 31, 2010
Organizations
Institute of Medicine
Partner Organizations
National Science and Technology Council
Project Web Site
https://www.grb.gov.tw/search/planDetail?id=1900575
Description
Description
2008 年在Am J Physiol Heart Circ Physiol 期刊提出Endothelin type A
receptor antagonist 改善睡眠呼吸終止症(夜間漸歇性缺氧)的老鼠的血壓和心血
管的傷害(Allahdadi et al., 2008)。心臟細胞凋亡途徑可分為Fas death receptor-及
mitochondria- dependent 兩種主要途徑,然而是否內皮素A 型受體拮抗劑或運動
治療對睡眠呼吸終止症(夜間漸歇性缺氧)中心臟細胞Fas& Mitochondrial 凋亡途
徑的療效,至今仍未知。
第一年計劃: 為了探討內皮素A 型受體拮抗劑對睡眠呼吸終止症(夜間漸歇
性缺氧)中心臟細胞Fas& Mitochondrial 凋亡和PI3K-Akt 存活途徑途徑的影響。
實驗共分成four group [G1: normoxia Control (n=20); G2: Intermittent hypoxia (2
min N2 + 2min normoxia, 8 hour, 2 weeks, n=20); G3: Endothelin Type A receptor
antagonist BQ-123 (100 nmol.kg(-1).day(-1) sc for 14 days) + Intermittent hypoxia (2
min N2 + 2min normoxia, 8 hour, 2 weeks, n=20); G4: Endothelin Type A receptor
antagonist BQ-123 (1000 nmol.kg(-1).day(-1) sc for 14 days) + Intermittent hypoxia
(2 min N2 + 2min normoxia, 8 hour, 2 weeks, n=20)] 進行血壓、多重凋亡相關實驗
法例如組織切片、TUNEL assay、western blotting、RT-PCR 等實驗方法來加以分
析並加以探討其心肌細胞凋亡的現象,Fas death receptor-dependent 心肌細胞凋亡
(Fas ligand, Fas Death-receptor, caspase 8, and caspase 3)和mitochondria-dependent
心肌細胞凋亡(Bcl2 family proteins-Bcl2, BNIP3, Bad, cytochrome c release,
caspase 9 and caspase 3)和PI3K-Akt 等訊息傳遞路徑。
第二年計劃:為了探討運動治療對睡眠呼吸終止症(夜間漸歇性缺氧)對於心
臟細胞抗凋亡和PI3K-Akt 存活途徑的療效,因此本實驗第二年計劃將three group
[G1: normoxia Control (n=20); G2: Intermittent hypoxia (2 min N2 + 2min normoxia,
8 hour, 2 weeks, n=20); G3: Swimming training (Pre-conditioning 14 days+
conditioning 14 days) + Intermittent hypoxia (2 min N2 + 2min normoxia, 8 hour, 2
weeks, n=20)] 進行血壓、多重凋亡相關實驗法例如組織切片、western blotting、
TUNEL assay, RT-PCR 等實驗方法來加以分析並加以探討其心肌細胞凋亡的現
象,Fas death receptor-dependent 心肌細胞凋亡(Fas ligand, Fas Death-receptor,
caspase 8, and caspase 3)和mitochondria-dependent 心肌細胞凋亡(Bcl2 family
proteins-Bcl2, BNIP3, Bad, cytochrome c release, caspase 9 and caspase 3) 和
PI3K-Akt 等訊息傳遞路徑。
第三年計劃:為了探討內皮素A 型受體拮抗劑配合運動治療是否加乘對睡眠
呼吸終止症(夜間漸歇性缺氧)對於心臟細胞抗凋亡和PI3K-Akt 存活途徑之療
效,因此本實驗第三年計劃將將分五組[G1: normoxia Control (n=20); G2:
Intermittent hypoxia (2 min N2 + 2min normoxia, 8 hour, 2 weeks, n=20); G3:
Endothelin Type A receptor antagonist BQ-123 (100 nmol.kg(-1).day(-1) sc for 14
days) + Intermittent hypoxia (2 min N2 + 2min normoxia, 8 hour, 2 weeks, n=20); G4:
Swimming training (Pre-conditioning 14 days+ conditioning 14 days) + Intermittent
hypoxia (2 min N2 + 2min normoxia, 8 hour, 2 weeks, n=20); G5: Swimming training
(Pre-conditioning 14 days+ conditioning 14 days) +Endothelin Type A receptor
antagonist BQ-123 (100 nmol.kg(-1).day(-1) sc for 14 days) + Intermittent hypoxia (2
min N2 + 2min normoxia, 8 hour, 2 weeks, n=20)]。加以探討其血壓、Fas 和
mitochondria-dependent 心肌細胞凋亡和PI3K-Akt 存活途徑的現象。
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