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題 名 | Effects of Storage Time and Temperature on the Stability of Glutathione in Deproteinized Blood Sample=貯存時間和儲存溫度對於去蛋白化血液檢體中穀胱甘肽膿度之影響 |
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作 者 | 林書愷; 蔡世盟; 黃榮智; 李素珍; 吳思賢; 吳思樺; 馬旭; 林進德; 蔡麗玉; | 書刊名 | 藥物食品分析 |
卷 期 | 14:2 2006.06[民95.06] |
頁 次 | 頁141-146+219 |
分類號 | 414.7 |
關鍵詞 | 穀胱甘肽; 血液; 穩定性; 自體氧化; Glutathione; Blood; Stability; Autoxidation; |
語 文 | 英文(English) |
中文摘要 | 穀胱甘肽在紅血球裡是普遍存在的,並且和很多細胞的功能有密切的關聯。還原型的穀胱甘肽 (reduced glutathione,GSH) 和氧化型穀胱甘肽 (oxidized glutathione,GSSG) 會被釋放進入血漿當中,而GSH/GSSG的比值常被用來評估生物體系統的氧化性壓力之狀態,以提供作為總定可靠的指標。然而,GSH指標在不同的貯存溫度和時間的相關研究在近年來並沒有詳盡的研究和討論,因此本實驗欲透過自動化的毛細管電泳系統,利用兩種抗凝劑的血液樣品來評估貯存時期和溫度對GSH指標穩定性的影響。經過Two-way ANOVA的統計分析,結果顯示GSH指標在保存的時間和貯存的溫度之間有統計學上重要意義的差別存在,無論選擇何種冷凍樣品的溫度 (-20℃或-80℃) ,GSH濃度的總量在整個研究過程中依然維持十分穩定。此外,我們推測貯存在室溫中GSH指標改變的原因,應該不僅包含GSH的自體氧化作用,而且也包括酵素催化作用而使GSH和GSSG皆發生降解反應。 |
英文摘要 | Glutathione is ubiquitous in eucaryotic cells and is implicated in many cellular functions. Release of reduced and oxidized glutathione (GSH and GSSG) into the plasma and the ratio of GSH/GSSG are considered a reliable index to evaluate the status of oxidative stress in biological systems. As storage temperatures and time periods have not been studied and discussed, we evaluated the effects of storage period and temperatures on the stability of GSH in blood samples by an automated capillary electropherograph system. After two-way ANOVA analysis, the result indicated that there were statistical significance between the GSH status and the storage period, and the GSH status and the preserved temperature as well. However, there was no statistical significance between samples with EDTA or with EDTA-NaF added as anticoagulant. Furthermore, no matter which freezing temperature (-20°C or -80°C) was used for storing the samples, the concentration of total GSH was quite consistent over the course of the study. We suggest that the alteration of the GSH status at room temperature should be due to not only the autoxidation of GSH but also the enzyme-catalyzed degradation of GSH and GSSG. |
本系統中英文摘要資訊取自各篇刊載內容。