Summary of Study ST002384

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001534. The data can be accessed directly via it's Project DOI: 10.21228/M8DH62 This work is supported by NIH grant, U2C- DK119886.

See: https://www.metabolomicsworkbench.org/about/howtocite.php

This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

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Study ID	ST002384
Study Title	Lipidomics study of curcumin and epigallocatechin gallate on IgE-mediated degranulation of RBL-2H3 cells
Study Summary	This study provides novel insights into the potential anti-allergic mechanism of food-derived curcumin and EGCG, and then facilitates the discovery of drug target and the development of diagnostic methods for allergic diseases.
Institute	College of Marine Food and Biological Engineering, Jimei University
Last Name	Yang
First Name	Zhiqiang
Address	No. 185 Yinjiang Road, Jimei District, Xiamen City, Fujian Province, China
Email	201911832016@jmu.edu.cn
Phone	0592-6181487
Submit Date	2022-07-19
Raw Data Available	Yes
Raw Data File Type(s)	raw(Waters)
Analysis Type Detail	LC-MS
Release Date	2022-12-27
Release Version	1

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Sample Preparation:

Sampleprep ID:	SP002479
Sampleprep Summary:	The MeOH/MTBE/H2O system was used for the extraction of lipid metabolites from cell samples. Cell culture dishes stored at -80 °C were first removed on ice and 1 mL of methanolic solution containing internal standards was added, consisting of 1 μg/mL FFA (C16:0)-d3 and FFA (C18:0)-d3, 0.87 μg/mL LPC (19:0) and SM (d18:1/12:0), 1.12 μg/mL PC (38: 0), 0.92 μg/mL PE (30:0), 0.67 μg/mL TG (45:0), and 0.47 μg/mL Cer (d18:1/17:0). The cells were transferred to 5 mL Eppendorf centrifuge tubes by scraping with a cell scraper, adding 2.5 mL of MTBE and vortexing for 30 s. The cells were further shaken for 30 min at 10 °C and 1000 rpm using a thermostatic mixer. 750 μL of ultrapure water was added, vortexed for 60 s and allowed to stand for 5 min, and then centrifuged at 12,000 g for 10 min at 6 °C. After separation of the two phases, 400 μL of the hydrophobic phase was collected and dried in a cryogenic vacuum centrifuge concentrator, and the resulting lyophilized sample was stored at -80 °C.

Sampleprep ID:

SP002479

Sampleprep Summary:

The MeOH/MTBE/H2O system was used for the extraction of lipid metabolites from cell samples. Cell culture dishes stored at -80 °C were first removed on ice and 1 mL of methanolic solution containing internal standards was added, consisting of 1 μg/mL FFA (C16:0)-d3 and FFA (C18:0)-d3, 0.87 μg/mL LPC (19:0) and SM (d18:1/12:0), 1.12 μg/mL PC (38: 0), 0.92 μg/mL PE (30:0), 0.67 μg/mL TG (45:0), and 0.47 μg/mL Cer (d18:1/17:0). The cells were transferred to 5 mL Eppendorf centrifuge tubes by scraping with a cell scraper, adding 2.5 mL of MTBE and vortexing for 30 s. The cells were further shaken for 30 min at 10 °C and 1000 rpm using a thermostatic mixer. 750 μL of ultrapure water was added, vortexed for 60 s and allowed to stand for 5 min, and then centrifuged at 12,000 g for 10 min at 6 °C. After separation of the two phases, 400 μL of the hydrophobic phase was collected and dried in a cryogenic vacuum centrifuge concentrator, and the resulting lyophilized sample was stored at -80 °C.