Tissue dissection times — DISSECTION_TIMES • MotrpacRatTrainingPhysiologyData

Tissue dissection times.

DISSECTION_TIMES

Format

An object of class data.frame with 5450 rows and 11 columns:

pid: character; randomly generated 8-digit identifier used in linkage to phenotypic data. All samples from the same animal have the same PID.
age: factor; the age of the rat at the beginning of the training protocol. Levels: "6M" (Adult) and "18M" (Aged).
sex: factor; the sex of the rat with levels "Female" and "Male".
group: factor; exercise training group. Either "SED" (sedentary) or the number of weeks of training ("1W", "2W", "4W", "8W").
sampletypedescription: character; sample type (usually a tissue) descriptions.
aliquotdescription: factor; sample type descriptions for plotting.
t_collection: Period; time of tissue collection relative to midnight ("0S").
t_death: Period; time of death via heart puncture relative to midnight ("0S").
t_freeze: Period; time of tissue freezing relative to midnight ("0S").
collect_before_death: logical; whether the tissue was collected before the rat was sacrificed.
t_diff: integer; seconds elapsed between time of freezing and either time of collection (if collect_before_death) or time of death (if !collect_before_death).