HormonesGonadal Steroid HormonesMenstrual CycleProgesteroneHydrocortisoneProlactinEstradiolMenopauseLuteinizing HormoneMenstruationTestosteronePituitary Hormones, AnteriorEstrusPubertyFollicle Stimulating HormonePregnancySexual MaturationPituitary GlandPregnancy, AnimalAgingOvaryEstrogensInsulinAdrenocorticotropic HormoneThyroid HormonesBlood GlucoseThyroxineBody WeightGrowth HormoneRadioimmunoassayTime FactorsEpinephrineOrgan SizeLeptinOvariectomyTestisAnalysis of VarianceBlood Pressure