Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/174
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    Title: 鋅對於吳郭魚細胞色素P450之影響
    Authors: 王明雄
    Contributors: 保健營養系
    Date: 2007
    Issue Date: 2008-05-13 14:28:52 (UTC+8)
    Publisher: 台南縣:嘉南藥理科技大學保健營養系
    Abstract: 本研究主要研究膳食中之鋅缺乏對吳郭魚肝臟細胞色素P4501A (CYP1A) 之表現之影響。膳食中缺鋅 (5 mg Zn/ kg diet) 飼養八週之吳郭魚與對照組 (pair-fed control, 46 mg Zn/ kg diet) 比較,發現其體重相差不大,但血漿中之鋅濃度缺鋅組之吳郭魚明顯低於對照組,進一步解剖發現其肝臟之重量與對照組並無差異,而肝臟中之CYP含量及相關之單加氧酶活性亦顯現無差異的情況,似乎說明膳食中缺乏鋅對吳郭魚之肝臟中之細胞色素P450之含量及相關酵素活性似乎沒有影響。進一步將此二組之吳郭魚分別施打不同劑量之五氯酚,則發現膳食中缺乏鋅之吳郭魚肝臟之aryl hydrocarbon hydroxylase (AHH) 及ethoyresorufin-O-deethylase (EROD)活性在較大劑量之五氯酚作用下,比控制組較低。而同時以reverse transcription polymerase chain reaction (RT-PCR) 進行CYP1A mRNA之表現量的分析,發現膳食中缺乏鋅之吳郭魚肝臟之CYP1A表現量明顯較控制組為低,顯示鋅似乎在CYP1A的表現上具有特殊之功能,當吳郭魚在膳食中缺乏鋅之狀況下亦會影響CYP1A的表現,其機制為何有待更進一步的探討。
    Relation: 計畫編號 : CN9629
    Appears in Collections:[Dept. of Health and Nutrition (including master's program)] Chna Project

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