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MB Sample ID: SA028852
Local Sample ID: | 391-4 |
Subject ID: | SU000581 |
Subject Type: | Animal |
Subject Species: | Mus musculus |
Taxonomy ID: | 10090 |
Genotype Strain: | C57BL/6 |
Gender: | Male |
Animal Animal Supplier: | KO: bred and housed at the laboratory animal resource unit (LARU) of North Carolina A&T State University; WT: Charles River Laboratories |
Animal Housing: | group cages of up to 5 mice per cage |
Animal Light Cycle: | 12:12h light:dark cycle |
Animal Feed: | rat chow |
Animal Water: | water ad libitum |
Species Group: | Mammal |
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Sample Preparation:
Sampleprep ID: | SP000588 |
Sampleprep Summary: | Urine samples were thawed on ice for 30–60 min and vortexed on a multi-tube vortexer for 2 mins at 5,000 rpm, followed by centrifugation at room temperature at 16,000 rcf for 4 min. An aliquot of the supernatant was transferred to pre-labeled 1.5 mL low protein-binding microcentrifuge tube to make the individual study sample (40 µL). Another aliquot of supernatant (11 µL) was combined with those from all other urine samples in a 1.5 mL low protein-binding microcentrifuge tube to make the total pool quality control sample. The total pool quality control sample was aliquoted (40 µL) to make 5 Total Pool Samples and 4 Column Equilibration samples. 132 µL of the total pool quality control sample was added to the total study sample pool to make a pool of kidney, urine, and plasma samples. The total study pool sample was used to prepare 9 Total Study Samples (40 µL) to aid in alignment of the three studies. Of these, 3 total study samples were included in the urine analysis. Acetonitrile containing the internal standard Tryptophan-d5 (120 µL; 0.0167 mg/ml) was added to all samples, and samples were vortexed on a multiple tube vortexer for 2 min at 5000 rpm followed by centrifugation at 16,000 rcf for 4 min. The supernatants (420 µL) were transferred into new, pre-labeled 2.0 mL low protein-binding microcentrifuge tubes and capped with disposable rubber stoppers. Samples were placed at -80 °C for 1.5 h and lyophilized for 18 h. Acetonitrile:Water (150 µL; 95:5) was added to each tube and vortex mixed for 10 min at 5000 rpm, followed by centrifugation at room temperature at 16,000 rcf for 4 min. The supernatants were transferred to new, pre-labeled autosampler vials and 3 uL was injected into SYNAPT G2-Si. |