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  5. 人類顆粒細胞丙二醛的降低與粒線體DNA套數的增加與胚胎品質較佳相關
 
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人類顆粒細胞丙二醛的降低與粒線體DNA套數的增加與胚胎品質較佳相關

Other Title
Decreased malondialdehyde and increased mtDNA copy number in
human granulosa cells correlate with higher quality embryos
Type
thesis
Date Issued
2013-06-21
Author(s)
林欣樺
Advisor
謝榮鴻
Subjects
系所名稱:保健營養學研究所
Description
學位別:碩士
語文別:中文
指導教授:謝榮鴻
共同指導教授:
口試委員:魏耀揮;曾啟瑞
中文關鍵字:顆粒細胞;氧化壓力;粒線體;胚胎品質;多囊性卵巢症候群;子宮內膜異位
Abstract
顆粒細胞(granulosa cells)為卵細胞周圍的細胞,提供卵細胞所需的能量、生長素與雌激素,調控卵細胞的成長。氧化壓力較高的卵細胞其卵細胞與胚胎之品質較差,本研究主要探討顆粒細胞之氧化壓力、粒線體功能,比較其卵細胞受孕與胚胎分裂品質之相關性。63位臺北醫學大學附設醫院生殖醫學中心接受體外受精治療者,受試者分為多囊性卵巢症候群(polycystic ovary syndrome, P)、子宮內膜異位(endometriosis, E)、輸卵管因素(tubal factors, T)、其他女性不孕因素(other female factors, O)組,以男性不孕因素(male factors, C)的顆粒細胞為對照組。收集顆粒細胞進行下列分析:脂質過氧化物、glutathione peroxidase (GPx)酵素活性、粒線體氧消耗速率(oxygen consumption rate)、呼吸控制速率比值(respiratory control ratio, RCR)、ATP產生量、粒線體DNA套數(mtDNA copy number)之差異;比較其受精機率、胚胎細胞分裂(embryo cleavage)之品質。同時,比較兩種主要療程藥物gonadotropin releasing hormone antagonist (GnRH antagonist) 與gonadotropin releasing hormone agonist (GnRH agonist) 給予之組別,其mtDNA套數之差異。研究顯示多囊性卵巢症候群組的顆粒細胞,有顯著較高脂質過氧化產物;包括多囊性卵巢症候群組、子宮內膜異位組及其他女性不孕因素組,其顆粒細胞的GPx酵素活性顯著低於控制組。於多囊性卵巢症候群組顆粒細胞中,粒線體有較差的氧化磷酸化作用能力之趨勢、mtDNA套數顯著低於控制組,粒線體的功能較差。GnRH antagonist藥物組mtDNA 套數高於給予GnRH agonist組。顆粒細胞脂質過氧化物含量與體外受精結果呈負相關,顆粒細胞的mtDNA套數與胚胎細胞分裂之品質呈正相關,顆粒細胞的mtDNA套數偏低可能為胚胎細胞品質較差的其一指標。
URI
https://203.71.86.71/handle/123456789/13816

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