L-3-羥基丁酸於H9c2細胞株及大鼠組織內含量之分析

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Taipei Medical University Institutional Repository > 藥學院 > 藥學系 > 博碩士論文 > Item 987654321/6832

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Title:	L-3-羥基丁酸於H9c2細胞株及大鼠組織內含量之分析 The Study of Endogenous Free L-3-Hydroxybutyrate in H9c2 Cell Line and Rat Tissues
Authors:	徐瑋瑜 Wei-Yu Hsu
Contributors:	藥學研究所
Keywords:	L-3-羥基丁酸 H9c2細胞株 L-3-Hydroxybutyrate H9c2 cell line
Date:	2009
Issue Date:	2009-09-15 15:58:44 (UTC+8)
Abstract:	本論文藉由螢光衍生化試劑搭配逆相高效能層析法，對大鼠各組織中L-3羥基丁酸進行定量。將 4、8、16 和 24 週大的 SD 雄鼠各組織離心後，取上清液與螢光衍生化試劑4 nitro 7 piperazino 2,1,3 benzoxadiazole(NBD PZ)衍生，並利用ODS管柱和串聯的OD-RH管柱進行鏡像異構物的分離。結果發現又以八週大心臟中所定量的L-3HB含量較高(2.10 ± 1.10μM)，而心臟除了L-3HB含量最高之外，所佔的比例也相當高(L%=28.56%)，僅次於比例最高的腎上腺(43.4%)。另外，以心肌H9c2細胞株外加0-10 mM不等的(D+L)-3HB、L 3HB、D 3HB 並培養 0, 2, 10 個小時後，測定在不同時間點細胞內L-3HB的含量。根據實驗結果，外加2 mM D-3HB培養十小時後，心肌細胞株中L-3HB 會大量增加，代表 D-3HB可能是L-3HB的前驅物。 The concentrations of L-3-hydroxybutyrate (L-3HB) in rat various tissues were determined by column-switching HPLC with pre-column fluorescence derivatization. The tissues of 4, 8, 16, 24-week-old male Sprague–Dawley rats were homogenized and the supernatants were derivatized with a fluorescent reagent, 4-nitro-7-piperazino-2,1,3-benzoxadiazole (NBD-PZ), then separated on an ODS column followed by two-OD-RH-connected chiral columns for enantioseparation. The results showed that the contents of L-3HB were highest in the heart (2.10 ± 1.10 μM, 8 weeks of age). In the adrenal gland, the percentage of L-3HB was found to compose as high as 43.4% of total 3HB, followed by 28.6% in heart homogenate. We further investigated L-3HB levels in heart-derived H9c2 cell line in the presence or absence of 0-10 μM (D+L)-3HB, L-3HB, D-3HB in the medium. After incubation with 2 mM D-3HB for 10 hrs, the concentration of L-3HB in the cells was increased significantly. The result suggests that D-3HB is a precursor of L-3HB.
Data Type:	thesis
Appears in Collections:	[藥學系] 博碩士論文

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