Metabolomics Workbench : NIH Data Repository

MB Sample ID: SA024484

Local Sample ID:	G014
Subject ID:	SU000499
Subject Type:	Animal
Subject Species:	Mus musculus
Taxonomy ID:	10090
Species Group:	Mammal

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Subject:

Subject ID:	SU000499
Subject Type:	Animal
Subject Species:	Mus musculus
Taxonomy ID:	10090
Species Group:	Mammal

Factors:

Local Sample ID	MB Sample ID	Factor Level ID	Level Value	Factor Name
G014	SA024484	FL005895	11	days post exposure to radiation
G014	SA024484	FL005895	-	radiation dose
G014	SA024484	FL005895	sham	radiation source

Collection:

Collection ID:	CO000493
Collection Summary:	Livers were dissected and snap-frozen at -80°C before NMR spectroscopy and morphology analysis.
Sample Type:	Liver

Treatment:

Treatment ID:	TR000513
Treatment Summary:	A total of 27 seven-week-old C57BL/6 female mice randomly into 6 groups, and then whole body being exposed to either gamma or proton radiation. The individually housed animals were fed a standard diet and maintained in an environment controlled facility with an ambient temperature of 22-25°C and 45% relative humidity on 12 h light-dark cycle. Mice were exposed to whole body gamma radiation using a high-activity source (1250 keV 60Co) with the linear energy transfer (LET) associated with these fields in the range of 0.2-2 keV/μm. The mice were isolated in the corner of their polymer cages and placed a minimum of 100 cm from the collimated 6000 Ci (222 TBq) 60Co source, and then irradiation to the proposed dosage, respectively. The result of absorbed dose rate at a depth of approximately 600 mg/cm2 were ~0.83 Gy/min relative to tissue. After irradiation the isolation barrier was removed and mice were transferred to Animal Facility.Mice placed into aerated polystyrene boxes immediately before exposure to the entrance region of proton at the BNL Alternating Gradient Synchrotron (AGS) (1055 MeV/nucleon at the target, with a track-averaged LET =148.2 keV/μm at target). Doses of 0 and 3.0 Gy were delivered to a maximum of four mice at ~0.83 Gy/min in a single fraction. All procedures (i.e., placement in aerated boxes and subsequent tissue harvesting) for the control mice were identical to those of irradiated animals, except that they received no radiation.

Treatment ID:

TR000513

Treatment Summary:

A total of 27 seven-week-old C57BL/6 female mice randomly into 6 groups, and then whole body being exposed to either gamma or proton radiation. The individually housed animals were fed a standard diet and maintained in an environment controlled facility with an ambient temperature of 22-25°C and 45% relative humidity on 12 h light-dark cycle. Mice were exposed to whole body gamma radiation using a high-activity source (1250 keV 60Co) with the linear energy transfer (LET) associated with these fields in the range of 0.2-2 keV/μm. The mice were isolated in the corner of their polymer cages and placed a minimum of 100 cm from the collimated 6000 Ci (222 TBq) 60Co source, and then irradiation to the proposed dosage, respectively. The result of absorbed dose rate at a depth of approximately 600 mg/cm2 were ~0.83 Gy/min relative to tissue. After irradiation the isolation barrier was removed and mice were transferred to Animal Facility.Mice placed into aerated polystyrene boxes immediately before exposure to the entrance region of proton at the BNL Alternating Gradient Synchrotron (AGS) (1055 MeV/nucleon at the target, with a track-averaged LET =148.2 keV/μm at target). Doses of 0 and 3.0 Gy were delivered to a maximum of four mice at ~0.83 Gy/min in a single fraction. All procedures (i.e., placement in aerated boxes and subsequent tissue harvesting) for the control mice were identical to those of irradiated animals, except that they received no radiation.

Sample Preparation:

Sampleprep ID:	SP000506
Sampleprep Summary:	Step 1: After randomization of the samples, every preweighted intact frozen liver tissue was homogenized by a Tissue Tearsor (Model 985-370, BioSpec Product, Inc.) in ice-cold after adding 4 ml MeOH and 0.85 ml deionized H2O per gram of liver tissue, followed by vortexing the mixture and then 2 ml chloroform per gram of tissue was added and vortexed again. This process took 6 minutes and kept exactly the same for each sample. Step 2: 2 ml chloroform and 2 ml deionized H2O per gram of tissue were added in the mixture then vortexed again, followed by transferring the different layers into glass vials separately with syringes after the mixture (in ice bath) centrifuged. Finally, the solvents of hydrophilic metabolites were removed by employing lyophilizer and then stored at -80oC freezer before NMR spectral measurements.

Sampleprep ID:

SP000506

Sampleprep Summary:

Step 1: After randomization of the samples, every preweighted intact frozen liver tissue was homogenized by a Tissue Tearsor (Model 985-370, BioSpec Product, Inc.) in ice-cold after adding 4 ml MeOH and 0.85 ml deionized H2O per gram of liver tissue, followed by vortexing the mixture and then 2 ml chloroform per gram of tissue was added and vortexed again. This process took 6 minutes and kept exactly the same for each sample. Step 2: 2 ml chloroform and 2 ml deionized H2O per gram of tissue were added in the mixture then vortexed again, followed by transferring the different layers into glass vials separately with syringes after the mixture (in ice bath) centrifuged. Finally, the solvents of hydrophilic metabolites were removed by employing lyophilizer and then stored at -80oC freezer before NMR spectral measurements.

Analysis:

MB Sample ID:	SA024484
Analysis ID:	AN000744
Analysis Type:	NMR
Num Factors:	6
Num Metabolites:	72
Units:	µM/mg

NMR:

NMR ID:	NM000083
Analysis ID:	AN000744
Instrument Name:	Varian INOVA 800
Instrument Type:	FT-NMR
NMR Experiment Type:	1D 1H
Spectrometer Frequency:	800 MHz