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MB Sample ID: SA163301

Local Sample ID:NYSM-00454
Subject ID:SU001822
Subject Type:Mammal
Subject Species:Rattus norvegicus
Taxonomy ID:10116
Genotype Strain:Long Evans
Age Or Age Range:From post-natal day 1 (PN1) to PN80
Weight Or Weight Range:5g-250g
Gender:Male and female
Animal Animal Supplier:Envigo
Animal Housing:Animal facility at NYU
Animal Light Cycle:7am-7pm

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Collection ID:CO001815
Collection Summary:Rats trained in inhibitory avoidance at PN17, PN24, and PN80, and the untrained (naive) control rats were euthanized by decapitation (1 hour after IA training). Their brains were quickly removed and placed in ice-cold phosphate-buffered saline (1X). Whole hippocampal samples were dissected and immediately snap-frozen in isopentane on dry ice. All samples were stored at -80°C until processing. Frozen samples were shipped in dry ice to Metabolon Inc. (Morrisville, NC, USA) for metabolomic analysis using a proprietary methodology. Extraction of samples was performed using a MicroLab STAR automated liquid handling robot (Hamilton Robotics, Inc., Reno, NV, USA); 450 μL of methanol was added to 100 μo of sample to precipitate proteins. Four recovery standards (DL-2-fluorophenylglycine, tridecanoic acid, cholesterol-d6 and 4-chlorophenylalanine) were added to each sample to determine extraction efficiency. To remove proteins, dissociate small molecules bound to protein, and recover metabolites, proteins were precipitated with methanol under vigorous shaking for 2 min (Glen Mills GenoGrinder 2000) followed by centrifugation (1300 g for 10 min at room temperature). The resultant supernatants were placed in a TurboVap (Zymark) to remove the organic solvent. Each sample extract was then divided into five equal aliquots, dried under nitrogen, and stored in vacuo prior to metabolomic profiling.
Sample Type:Brain
Collection Method:Brain dissection
Collection Location:New York University
Storage Conditions:-80℃