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題名 | Dietary Fats Affect the Gene Expression of Hormone-Sensitive Lipase in Porcine Adipose Tissue=脂質攝取對豬脂肪組織荷爾蒙敏感性解脂酶基因表現之影響 |
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作者 | 劉昌宇; 莊秀琪; 張玲菊; | 書刊名 | 中華農學會報 |
卷期 | 180 1997.12[民86.12] |
頁次 | 頁57-67 |
分類號 | 437.654 |
關鍵詞 | 豬; 脂質; 荷爾蒙敏感性解脂酶; 基因表現; Pigs; Dietary fats; Hormone-sensitive lipase; Gene expression; |
語文 | 英文(English) |
中文摘要 | 不飽和脂肪酸的攝取能刺激脂肪組織中脂肪分解反應和荷爾蒙敏感性解脂□ (Hormone-sensitive lipase;HSL)之活性。為探討脂質是否會影響HSL基因表現,新生仔豬 連續餵食21天含3.6%豬油、大豆油或魚油之脫脂乳粉(另添加0.4%大豆油以補充必需脂肪酸) 後,收集脂肪組織。不同油脂依成分顯著地改變脂肪組織中脂肪酸百分比,但對仔豬攝食量、 增重並無影響。利用聚合□鏈反應(PCR)測定發現,仔豬餵飼魚油組者,其脂肪組織中HSL 基因之表現量,較餵飼大豆油組與餵飼豬油者,分別高約35%和60%。因各組肝臟中HSLmRNA 量並無明顯差異,不飽和脂肪酸對HSL的作用可能為脂肪酸組織之特有反應。 |
英文摘要 | Dietary polyunsaturated fats stimulate adipose ilpolytic responses and hormone- sensitive lipase (HSL) activity. To determine whether dietary fats influence gene expression of the enzyme, adipose tissue was collected from neonatal pigs fed skim-milk for 21 days with 3.6% fat supplement as lard, soybean oil, or fish oil plus 0.4% soybean oil (essential fatty acid repleat) Without effects on milk intake and weight gain, dietary fats markedly altered fatty acid profiles of adipose tissue according to their compositions. By using relative quantitation with PCR, we found 35% and 60% more hormone-sensitive lipase gene expressed in adipose tissue from fish oil-fed pigs as compared with that in soybean oil-fed and lard-fed animals, respectively. Since hepatic HSL mRNA was not significantly changed, the stimulatory effect of dietary polyunsaturated fats on the expression of hormone-sensitive lipase gene may be adipose tissue specific. |
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