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    題名: 停經對於心臟FAS, MITOCHONDRIAL, CASPASE-INDEPENDENT 凋亡的影響和治療的探討:1. 山藥補充 2. DIASGENIN補充 3.DIASGENIN補充配合運動療效
    作者: 李信達(Shin-Da Lee)
    貢獻者: 健康照護學院物理治療學系;中國附醫醫學研究部
    日期: 2011-10-31
    上傳時間: 2012-06-13 09:24:53 (UTC+8)
    摘要: 目標。有關薯蕷皂素對婦女停經後或雙側卵巢切除後的心臟的保護作用的資料非常有限。這項研究是評估影響皂素對心臟細胞凋亡在雙邊去卵巢動物模型。方法。 60隻雌性Wistar大鼠在6-7個月的年齡分為假手術組(Sham),雙側卵巢切除組(OVX)2個月,卵巢切除組先補充10毫克/公斤,50毫克/公斤,或100毫克/每日公斤薯蕷皂素(去卵巢10,去卵巢50,去卵巢100)2個月。切除心臟測定心臟重量指數,染色,TUNEL法,和免疫染色。結果。薯蕷皂素降低去卵巢引起的心肌TUNEL細胞凋亡。薯蕷皂素降低去卵巢引起的Fas和Fas死亡受體,FADD,活化的caspase 8和caspase 3的活性(Fas的途徑)。薯蕷皂素降低去卵巢引起的Bax的,Bad,Bax表達對 Bcl2比,活化的caspase 9和caspase 3的活性(線粒體途徑)。結論。薯蕷皂素抑制卵巢切除誘導的心肌Fas和線粒體依賴性凋亡與劑量有關的方式在大鼠模型。該研究結果可提供一個可能的治療方法的薯蕷皂素為防止潛在的心臟細胞凋亡的雙側卵巢切除或停經後。

    Objective. Very limited information regarding the protective effects of diosgenin on women’s hearts after post-menopause or bilateral oophorectomy was available. The study was to evaluate the effects of diosgenin on cardiac apoptotic pathways in bilateral ovariectomied animal model. Methods. Sixty female Wistar rats at 6-7 months of age were divided into sham-operated group (Sham), bilateral ovariectomized group (OVX) for 2 months, and OVX groups with 10 mg/kg, 50 mg/kg, or 100 mg/kg diosgenin daily (Ovx 10, Ovx 50, Ovx 100) in the 2nd month. The excised hearts were measured by heart weight index, hematoxylin-eosin staining, positive TUNEL assays, and Western blotting. Results. Diosgenin decreased OVX-induced cardiac TUNEL-positive apoptotic cells. Diosgenin decreased OVX-induced Fas ligand, Fas death receptors, Fas-associated death domain (FADD), activated caspase 8, and activated caspase 3 (Fas pathways). Diosgenin decreased OVX-induced Bax, Bad, Bax-to-Bcl2 ratio, activated caspase 9, and activated caspase 3 (mitochondria pathway). Conclusions. Diosgenin suppressed ovariectomy-induced cardiac Fas-dependent and mitochondria-dependent apoptotic pathways with dose-associated manners in rat models. The findings may provide one of possible therapeutic approaches of diosgenin for potentially preventing cardiac apoptosis after bilateral ovariectomy or post-menopause.
    顯示於類別:[物理治療學系暨復健科學碩士班] 研究計畫

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