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題 名 | N-Acetyltransferase in Healthy Human Liver and Hepatoma Tissues=人體正常肝組織及肝癌組織中乙醯轉移酵素的活性 |
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作 者 | 洪啟賦; 鍾景光; 李昭宏; 廖仁; | 書刊名 | 中華民國外科醫學會雜誌 |
卷 期 | 31:1 民87.01-02 |
頁 次 | 頁25-29 |
分類號 | 415.138 |
關鍵詞 | 肝; 肝癌組織; 乙醯轉移酵素; N-acetyltransferase; NAT; Arylamine; Acetylation; Liver; Hepatoma; |
語 文 | 英文(English) |
中文摘要 | 芳香胺化合物經N基乙醯轉移酵素之N基乙醯化後可誘發大腸癌及膀胱癌,本研究是各取30個肝癌及正常肝組織利用乙醯化輔脢A作乙醯基而再利用高壓層析儀份析來決定這些組織中乙醯轉移酵素的活生,以aminofluorene 和 p-aminobenzoic acid 作受質,結果正常和肝癌組織 NAT活性分別為3.60 ± 0.98和2.18 ± 0.44 nmol/min/mg protein 3.02 ± 0.69 和 1.98 ± 0.42 nmol/min/mg protein大腸癌及膀胱癌組織中NAT活性皆較正常組高,而本研究結果發現肝癌組織中NAT活性常組織為低,故可推測芳香胺化合物非肝癌致癌物質。 |
英文摘要 | N-acetyltransferase (NAT) is involved in the activation of arylamines through N-acetylation to cause colon and bladder carcinoma. NAT activity was determined in hepatocellular carcinoma (n=30) and healthy liver tissues (n=30) using an acetyl CoA recycling assay and high pressure liquid chromatography. The activities (Mean ± SD) of NAT from healthy liver and hepatoma tissues were 3.60 ± 0.98 and 2.18 ± 0.44 nomol/min/mg protein for the acetylation of aminofluorene, 3.02 ± 0.69 and 1.98 ± 0.42 nmol/min/mg protein for the acetylation of p-aminobenzoic acid, respectively. From the results in this study, the hepatoma NAt activity was lower than the healthy liver NAT activity. Thus, we conclude that arylamine is not a carcinogen to hepatoma. |
本系統中英文摘要資訊取自各篇刊載內容。