Repository logo
  • English
  • 中文
  • Log In
    New user? Click here to register.Have you forgotten your password?
Repository logo
    Communities & Collections
    Research Outputs
    Fundings & Projects
    People
    Organizations
    Statistics
  • English
  • 中文
  • Log In
    New user? Click here to register.Have you forgotten your password?
  1. Home
  2. .TMU Publications / 北醫出版品(教師升等著作 / 教學實踐 / 學位論文)
  3. .博碩士學位論文
  4. .99學年度
  5. 台灣株真菌Arecophila saccharicola YMJ96022401 及Nectria balsamea YMJ94052402成分之研究
 
  • Details
Options

台灣株真菌Arecophila saccharicola YMJ96022401 及Nectria balsamea YMJ94052402成分之研究

Other Title
Studies on chemical constituents of
Arecophila saccharicola YMJ96022401 and Nectria balsamea YMJ94052402 from Taiwan
Type
thesis
Date Issued
2011-07-07
Author(s)
林彥彣
Advisor
李宗徽
Subjects
系所名稱:藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:李宗徽
共同指導教授:
口試委員:張芳榮;李慶國;盧重光
中文關鍵字:真菌;誘導型一氧化氮合成酶Arecophila saccharicola;Nectria balsamea;RAW264.7;NF-κB;A549
Abstract
本研究利用抑制一氧化氮生成的活性分析平台來篩選真菌培養株,藉以篩檢出具有抗發炎活性的真菌株,發現某些真菌株的醱酵培養液或菌絲體萃取物,對於RAW264.7細胞的產生一氧化氮具有顯著的抑制作用,後續選定Arecophila saccharicola YMJ96022401及Nectria balsamea YMJ94052402 兩株進行其成分研究。在以麥芽抽取物 (malt extract) 為培養基擴大培養後,針對醱酵液所含代謝產物進行分析與分離,計獲得17個化合物,分別為: arecoic acid A (1)、 arecoic acid B (2)、arecoic acid C (3)、arecoic acid D (4)、arecoic acid E (5)、arecoic acid F (6)、arecolactone (7)、eremophilanolide 1 (8)、eremophilanolide 6 (9)、penipratynolene (10)、 5-hydroxymethyl-2-furoic acid (11)、radicicol (12)、nectrilide (13)、coriloxin (14)、zythiostromic acid A (15)、2-methyl-furan (16)、(22E,24R)-ergosta-7,9(11),22-triene-3β,5α,6β-triol (17),其中drimane-type倍半萜化合物1-6,及eremophilane-type倍半萜化合物7為新化合物。在生物活性測試上,化合物8和14對於RAW264.7細胞之一氧化氮產生中到強度的抑制活性,其半抑制濃度 (IC50) 分別為16.49 和2.72 μM,且對於RAW264.7細胞不具毒性,後續探討此訊息傳遞路徑的抗發炎作用機轉,證實14 對於NF-κB具抑制活性,其半抑制濃度 (IC50) 為15.48 μM,至於它是否能抑制下游iNOS的活性,仍有待進一步的探究,此外,化合物7、12和14對於肺腺癌A549細胞的生長具些微與強的抑制活性,其生長半抑制濃度 (GI50) 分別為27.62、1.43及27.83 μM。
URI
https://203.71.86.71/handle/123456789/13663

Copyright Notice

● The digital content on this platform is part of the Taipei Medical University Institutional Repository, featuring various academic works and outputs from the institution. It offers free access to academic research and public education for non-commercial use.

● Please use the content appropriately and within legal boundaries to respect copyright owners' rights. For commercial use, please obtain prior authorization from the copyright owner. Users must not use TMUIR for any illegal purposes.

● By utilising the platform, users are deemed to have fully accepted and understood all the regulations set out in this statement, relevant laws of the Republic of China, all international internet regulations, and usage conventions.

● TMUIR is committed to protecting the interests of copyright owners. If you believe that any material on this website infringes copyright, please contact our staff at libirtmu@gmail.com, and we will remove the work from the repository.

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Cookie settings
  • Privacy policy
  • End User Agreement
  • Send Feedback