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Chapters
- 00:04Introduction
- 00:54Preparation of Tissue-Drying Wicks
- 01:39Tissue Washing for Sphingolipidomic Optimal Cutting Temperature-Compound (OCT) Removal
- 02:41Tissue Weighing for Data Normalization
- 04:12Lipid Extraction
- 07:03Results: Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometry (LC ESI MS/MS) Analysis of Tissues Following OCT Removal
- 08:36Conclusion
Sphingolipids are bioactive metabolites with well-established roles in human disease. Characterizing alterations in tissues with mass-spectrometry can reveal roles in disease etiology or identify therapeutic targets. However, the OCT-compound used for cryopreservation in biorepositories interferes with mass-spectrometry. We outline methods to analyze sphingolipids in human tissues embedded in OCT with LC-ESI-MS/MS.
