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Glioblastoma Multiforme, Menenjiyom (Birincil) ve Metastaz (İkincil) Beyin Tümörlerine Ait Fenotiplerin Belirlenmesinde Kullanılacak Bütünleşik Omiks Analizler İçin Analitik Yöntem Geliştirilmesi ve Uygulanması

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cemil_can_eylem_tez_imzasız kütüphane.pdf (11.72Mb)
Date
2022
Author
Eylem, Cemil Can
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Abstract
A thorough examination of intermediate molecular levels such as protein, metabolite, and lipid is required to establish direct causal and functional links between genotype and phenotype. Comprehensive metabolomics and lipidomics analysis require the optimization of analysis conditions, as well as the use of multiple analytical techniques. In the thesis, metabolomics analyses were performed with GC-MS and LC-qTOF-MS, and lipidomic analyses were carried out with LC-qTOF-MS. The analytical techniques utilized were optimized with several experimental designs. The optimum solvent combinations for the extraction of metabolites, lipids, and even proteins were determined to be methanol:water:chloroform (3:1:3, v/v/v) for plasma samples and methanol:water:dichloromethane (2:1:3, v/v/v) for tissue samples. For GC-MS based metabolomics analyses performed with tissue samples; incubation time and temperature of silylation reagent, methoxyamine concentration-methanol volume interaction, and for plasma samples; methoxyamine concentration, incubation time of silylation reagent and methanol-methoxyamine volume interaction, were found to be important parameters affecting the analysis results. The mobile phase composition used as reconstitution solution for LC-qTOF-MS based metabolomics analyses was determined to have a significant effect on the analysis results. The Box-Behnken design was used to optimize the parameters affecting the chromatographic conditions of LC-qTOF-MS based metabolomics and lipidomics analyses. The developed analytical methods were applied to tissue and plasma samples of patients and control groups. The phenotypes of the tumors were illuminated by comparing them to the control group, and the results were evaluated in a holistic manner from a clinical point of view.
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http://hdl.handle.net/11655/26535
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  • Temel Eczacılık Bilimleri Bölümü Tez Koleksiyonu [49]
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Eylem, C. C. Glioblastoma Multiforme, Menenjiyom (Birincil) ve Metastaz (İkincil) Beyin Tümörlerine ait Fenotiplerin Belirlenmesinde Kullanılacak Bütünleşik Omiks Analizler için Analitik Yöntem Geliştirilmesi ve Uygulanması.
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