دورية أكاديمية
Comparison of methanol fixation versus cryopreservation of the placenta for metabolomics analysis
| العنوان: | Comparison of methanol fixation versus cryopreservation of the placenta for metabolomics analysis |
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| المؤلفون: | Jennifer K. Straughen, Alexandra R. Sitarik, A. Daniel Jones, Jia Li, Ghassan Allo, Carolyn Salafia, Andrea E. Cassidy-Bushrow, Nigel Paneth |
| المصدر: | Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Abstract Methods for collection of placental tissue at room temperature for metabolic profiling are described. Specimens were excised from the maternal side of the placenta and immediately flash frozen or fixed and stored for 1, 6, 12, 24, or 48 h in 80% methanol. Untargeted metabolic profiling was performed on both the methanol-fixed tissue and the methanol extract. Data were analyzed using Gaussian generalized estimating equations, two sample t-tests with false discovery rate (FDR) corrections, and principal components analysis. Methanol-fixed tissue samples and methanol extracts had a similar number of metabolites (p = 0.45, p = 0.21 in positive vs. negative ion mode). In positive ion mode, when compared to flash frozen tissue, both the methanol extract and methanol-fixed tissue (6 h) had a higher number of metabolites detected (146 additional metabolites, pFDR = 0.020; 149 additional metabolites, pFDR = 0.017; respectively), but these associations were not found in negative ion mode (all pFDR ≥ 0.05). Principle components analysis demonstrated separation of the metabolite features in the methanol extract, but similarity between methanol-fixed tissue and flash frozen tissue. These results show that placental tissue samples collected in 80% methanol at room temperature can yield similar metabolic data to flash frozen specimens. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| العلاقة: | https://doaj.org/toc/2045-2322Test |
| DOI: | 10.1038/s41598-023-31287-3 |
| الوصول الحر: | https://doaj.org/article/94bb9a70db0b47baa3190911752818e1Test |
| رقم الانضمام: | edsdoj.94bb9a70db0b47baa3190911752818e1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20452322 |
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| DOI: | 10.1038/s41598-023-31287-3 |