Insulin, Regular, HumanLipectomyGrowth HormoneHuman Growth HormoneBody SizeMass SpectrometryMuscle, SkeletalMusclesCell DivisionMuscle ProteinsReceptors, SomatotropinHormonesMuscular AtrophyMuscle Fibers, SkeletalSarcopeniaMuscle, SmoothMuscle DevelopmentMyostatinGrowth Hormone-Releasing HormoneMuscle ContractionInsulin-Like Growth Factor IThyroid HormonesMuscle, Smooth, VascularFollicle Stimulating HormoneGrowth DisordersProlactinLuteinizing HormoneOrgan SizeDwarfism, PituitaryBody CompositionMuscle Fibers, Fast-TwitchPituitary GlandMuscle Fibers, Slow-TwitchMuscle DenervationMuscle FatigueMuscle WeaknessHypophysectomyBody WeightAgingParathyroid HormoneGonadotropin-Releasing HormoneMitochondria, MuscleGonadal Steroid HormonesMuscle StrengthAcromegalyPituitary HormonesTime FactorsRNA, MessengerPeptide HormonesQuadriceps MuscleAdrenocorticotropic HormoneInsulinReceptors, Thyroid HormoneTriiodothyronineReceptors, GhrelinNeck MusclesBody Mass IndexPituitary Gland, AnteriorMyocytes, Smooth MuscleIsometric ContractionHypertrophyHormone Replacement TherapyGhrelinHindlimb SuspensionMolecular Sequence DataPituitary NeoplasmsPlacental LactogenTestosteroneHypopituitarismDwarfismBody HeightOculomotor MusclesMuscular Disorders, AtrophicAbsorptiometry, PhotonCells, CulturedRespiratory MusclesAdipose TissueSatellite Cells, Skeletal MuscleGene Expression RegulationMuscle, StriatedSignal TransductionRats, Sprague-DawleyMuscular DiseasesMuscle SpindlesExerciseMuscle RelaxationPlacental HormonesMuscle CellsCachexiaCattlePapillary MusclesThyroxineBase SequenceHydrocortisoneEstradiolSomatostatinHindlimbPituitary Hormones, AnteriorLiverMice, Inbred C57BL