x1 = Akt
x2 = Akt_pS473
x3 = AMPK
x4 = AMPK_pT172
x5 = mTORC1
x6 = mTORC1_pS2448
x7 = Mitophagy
x8 = FoxO3a
x9 = FoxO3a_pS253
x10 = CDKN1A
x11 = CDKN1B
x12 = JNK
x13 = JNK_pT183
x14 = ROS
x15 = DNA_damage
x16 = SA_beta_gal
x17 = IKKbeta
x18 = Mito_mass_new
x19 = Mito_mass_old
x20 = Mito_mass_turnover
x21 = Mito_membr_pot_new
x22 = Mito_membr_pot_old
x23 = Nil
x24 = Insulin
x25 = Amino_Acids
x26 = Irradiation
x27 = DNA_damage_gammaH2AX_obs
x28 = Akt_pS473_obs
x29 = mTOR_pS2448_obs
x30 = AMPK_pT172_obs
x31 = CDKN1A_obs
x32 = CDKN1B_obs
x33 = FoxO3a_pS253_obs
x34 = FoxO3a_total_obs
x35 = Mito_Mass_obs
x36 = Mito_Membr_Pot_obs
x37 = Mitophagy_obs
x38 = ROS_obs
x39 = JNK_pT183_obs
x40 = SA_beta_gal_obs