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  5. 脊髓中混合血統白血病蛋白1在大鼠子宮內膜異位症敏化骨盆-尿道反射的角色
 
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脊髓中混合血統白血病蛋白1在大鼠子宮內膜異位症敏化骨盆-尿道反射的角色

Other Title
The role of spinal MLL1 in the endometriosis-sensitized pelvic-urethra reflex in rats
Type
thesis
Date Issued
2023-06-30
Author(s)
陳安旂
Advisor
林則彬
Subjects
系所名稱:醫學科學研究所碩士班
Description
學位別:碩士
語文別:中文
口試委員:張宏名 CHANG, HUNG-MING;彭賢祐 PENG, HSIEN-YU;林則彬 LIN, TZER-BIN
授權範圍:網際網路,開放日期為2023-07-21
Abstract
臨床發現子宮內膜異位症 (Endometriosis, EM) 患者經常伴隨著慢性骨盆腔疼痛 (Chronic pelvic pain, CPP) 的症狀產生,然而其病因尚待證實。文獻證實EM會導致雌二醇 (E2) 合成異常,且E2會影響混合血統白血病蛋白1 (Mixed lineage leukemia 1, MLL1) 。已知在神經病變性疼痛上MLL1/WD重複蛋白5 (WD-Repeat Protein 5, WDR5) /谷氨酸代謝型受體亞型5 (Metabotropic glutamatergic receptor subtype 5, mGluR5) 的表現量會顯著提升,且依賴該路徑來調解疼痛。因此,本篇研究目的為探討EM是否透過脊髓MLL1/WDR5/mGluR5依賴性訊息路徑來參與骨盆-尿道反射 (Pelvic-urethra reflex, PUR)的跨臟器敏化作用。此外,已有文獻證實在EM動物模型的脊髓中,能夠偵測到細胞外信號調解激酶1/2 (Extracellular signal-regulated kinase 1/2, ERK1/2) 的磷酸化及核因子κB (Nuclear factor kappa B, NF-κB) 的訊息傳遞路徑被活化。因此,我們利用自體移植的方式模擬 EM,於術後 6周後,分別比較未手術 (NAV) 組及子宮內膜異位 (EM) 組動物的 (1) PUR 活性和 (2) 脊髓中的 p-ERK、p-p65、MLL1、WDR5和 mGluR5 的表現量。結果顯示,與 NAV組相比,EM 組實驗動物顯著性地增加 PUR 活性,證實EM促進內臟敏化反應,並且加劇跨臟器敏化作用。而以西方點墨法分析,相較於NAV組,EM組脊髓樣本中p-ERK、p-p65和mGluR5的表現量皆有顯著性增加。然而,MLL1與WDR5在EM組的表現量則仍有待確認。綜上所述,結果證實急性子宮刺激增加PUR活性,造成跨臟器敏化作用,並在結果顯示出EM促進內臟敏化反應,同時也證實 EM增加mGluR5訊息路徑活化促使 CPP 併發症的發生。
URI
https://handle.ncl.edu.tw/11296/e9b9tu
https://203.71.86.71/handle/123456789/10254

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