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MB Sample ID: SA245077
| Local Sample ID: | 47_4_4 |
| Subject ID: | SU002540 |
| Subject Type: | Mammal |
| Subject Species: | Mus musculus |
| Taxonomy ID: | 10090 |
| Genotype Strain: | APOE-targeted replacement mice homozygous for human E3 (B6.129P2-Apoe^tm2(APOE*3)Mae N8, Taconic #1548-F) or human E4 (B6.129P2- Apoe^tm3(APOE*4)Mae N8, Taconic #1549-F) alleles |
| Age Or Age Range: | P0-P3 |
| Gender: | Pooled |
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Sample Preparation:
| Sampleprep ID: | SP002546 |
| Sampleprep Summary: | The supernatant fraction containing polar metabolites was thawed gently on ice and dried at 10-3 mbar using a CentriVap vacuum concentrator (LabConco) to evaporate methanol. The dried polar metabolite pellet was derivatized by a two-step methoxyamine protocol first by addition of 70µL methoxyamine HCl (Sigma-Aldrich #226904-5G) in pyridine (20 mg/mL; Sigma-Aldrich #TS25730) to each pellet followed by 90 min dry heat incubation at 30°C. Samples were then centrifuged at 20,000 x g for 10 minutes after which 50µL of each sample was transferred to an amber V-shaped glass chromatography vial (Agilent #5184-3554) containing 80µL N-methyl-trimethylsilyl-trifluoroacetamide (MSTFA; ThermoFisher #TS48915) and gently vortexed followed by 30 min dry heat incubation at 37°C. |
| Extraction Method: | 50% ice-cold methanol |
| Extract Storage: | -80℃ |
| Sample Derivatization: | MSTFA |
