Model Mathematics

Component: environment

Component: membrane

dd time V = -1.0 C ⁢ JH_F1 + J_ant + JH_leak + J_uni ⁢ 2.0 - JH_res delta_pH = pH_i - pH_m proton_motive_force = V - 2.303 ⁢ R ⁢ T F ⁢ delta_pH

Component: Ca_uniporter

J_uni = Jmax_uni ⁢ Ca_i K_trans ⁢ 1.0 + Ca_i K_trans 3.0 1.0 + Ca_i K_trans 4.0 + L 1.0 + Ca_i K_act na ⁢ 2.0 ⁢ F ⁢ V - V_offset R ⁢ T 1.0 -ⅇ -2.0 ⁢ F ⁢ V - V_offset R ⁢ T

Component: Na_Ca_exchanger

J_Na_Ca = Jmax_Na_Ca ⁢ⅇ b ⁢ F ⁢ V - V_offset R ⁢ T 1.0 + K_Na Na_i n ⁢ 1.0 + K_Ca Ca_m

Component: proton_pump

JH_res = 360.0 ⁢ rho_res ⁢ ra ⁢ 10.0 6.0 ⁢ delta_pH ⁢ⅇ F ⁢ A_res R ⁢ T + rb ⁢ 10.0 6.0 ⁢ delta_pH - ra + rb ⁢ⅇ g ⁢ 6.0 ⁢ F ⁢ V R ⁢ T 1.0 + r1 ⁢ⅇ F ⁢ A_res R ⁢ T ⁢ⅇ 6.0 ⁢ F ⁢ V_B R ⁢ T + r2 + r3 ⁢ⅇ F ⁢ A_res R ⁢ T ⁢ⅇ g ⁢ 6.0 ⁢ F ⁢ V R ⁢ T Jo = 30.0 ⁢ rho_res ⁢ ra ⁢ 10.0 6.0 ⁢ delta_pH + rc1 ⁢ⅇ 6.0 ⁢ F ⁢ V_B R ⁢ T ⁢ⅇ F ⁢ A_res R ⁢ T - ra ⁢ⅇ g ⁢ 6.0 ⁢ F ⁢ V R ⁢ T + rc2 ⁢ⅇ F ⁢ A_res R ⁢ T ⁢ⅇ g ⁢ 6.0 ⁢ F ⁢ V R ⁢ T 1.0 + r1 ⁢ⅇ F ⁢ A_res R ⁢ T ⁢ⅇ 6.0 ⁢ F ⁢ V_B R ⁢ T + r2 + r3 ⁢ⅇ F ⁢ A_res R ⁢ T ⁢ⅇ g ⁢ 6.0 ⁢ F ⁢ V R ⁢ T A_res = R ⁢ T F ⁢ln⁡ K_res ⁢ NADH_m NAD_m

Component: proton_leak

JH_leak = g_H ⁢ proton_motive_force

Component: F0_F1_ATPase

JH_F1 = -180.0 ⁢ rho_F1 ⁢ pa ⁢ 10.0 3.0 ⁢ delta_pH ⁢ⅇ F ⁢ A_F1 R ⁢ T + pb ⁢ 10.0 3.0 ⁢ delta_pH - pa + pb ⁢ⅇ 3.0 ⁢ F ⁢ V R ⁢ T 1.0 + p1 ⁢ⅇ F ⁢ A_F1 R ⁢ T ⁢ⅇ 3.0 ⁢ F ⁢ V_B R ⁢ T + p2 + p3 ⁢ⅇ F ⁢ A_F1 R ⁢ T ⁢ⅇ 3.0 ⁢ F ⁢ V R ⁢ T Jp_F1 = -60.0 ⁢ rho_F1 ⁢ pa ⁢ 10.0 3.0 ⁢ delta_pH + pc1 ⁢ⅇ 3.0 ⁢ F ⁢ V_B R ⁢ T ⁢ⅇ F ⁢ A_F1 R ⁢ T - pa ⁢ⅇ 3.0 ⁢ F ⁢ V R ⁢ T + pc2 ⁢ⅇ F ⁢ A_F1 R ⁢ T ⁢ⅇ 3.0 ⁢ F ⁢ V R ⁢ T 1.0 + p1 ⁢ⅇ F ⁢ A_F1 R ⁢ T ⁢ⅇ 3.0 ⁢ F ⁢ V_B R ⁢ T + p2 + p3 ⁢ⅇ F ⁢ A_F1 R ⁢ T ⁢ⅇ 3.0 ⁢ F ⁢ V R ⁢ T A_F1 = R ⁢ T F ⁢ln⁡ K_F1 ⁢ ATP_m ADP_m_free ⁢ Pi_m ADP_m_free = 0.8 ⁢ ADP_m

Component: ATP_ADP_exchange

J_ant = Jmax_ant ⁢ 1.0 - ATP_i ⁢ ADP_m ADP_i ⁢ ATP_m ⁢ⅇ- F ⁢ V R ⁢ T 1.0 + ATP_i ADP_i ⁢ⅇ- f ⁢ F ⁢ V R ⁢ T ⁢ 1.0 + ADP_m ATP_m

Component: NAD_reduction

f_PDHa = 1.0 1.0 + u2 ⁢ 1.0 + u1 ⁢ 1.0 + Ca_m K_Ca -2.0 J_red = J_red_basal + 7.36 ⁢ f_PDHa ⁢ J_gly_tot

Component: TCA_cycle_ADP_phosphorylation

J_ptca = J_red_basal 3.0 + 0.84 ⁢ f_PDHa ⁢ J_gly_tot

Component: glycolytic_phosphorylation_of_ADP

J_gly_tot = beta_max ⁢ 1.0 + beta_1 ⁢ Glc ⁢ Glc ⁢ ATP_i 1.0 + beta_3 ⁢ ATP_i + 1.0 + beta_4 ⁢ ATP_i ⁢ beta_5 ⁢ Glc + 1.0 + beta_6 ⁢ ATP_i + beta_7 ⁢ Glc 2.0

Component: hydrolysis_of_ATP

J_hyd = k_hyd ⁢ ATP_i + J_hyd_ss J_hyd_ss = Jmax_hyd 1.0 + K_Glc Glc n_hyd

Component: Ca_release_from_the_ER

J_erout = Jmax_IP3 ⁢ IP3 IP3 + d_IP3 3.0 ⁢ Ca_i Ca_i + d_ACT 3.0 ⁢ h 3.0 + JH_leak ⁢ Ca_ER - Ca_i

Component: pumping_Ca_into_the_ER

J_serca = Jmax_serca ⁢ Ca_i 2.0 k_serca 2.0 + Ca_i 2.0

Component: differential_equations

dd time NADH_m = M ⁢ J_red - Jo Vm total_NAD_m = NADH_m + NAD_m NAD_m = total_NAD_m - NADH_m dd time ADP_m = M ⁢ J_ant - J_ptca + Jp_F1 Vm total_mitochondrial_adenosine_phosphate = ATP_m + ADP_m ATP_m = total_mitochondrial_adenosine_phosphate - ADP_m dd time ADP_i =- M ⁢ J_ant + C ⁢ J_hyd - J_gly_tot Vc ATP_i = 2.0 - ADP_i dd time Ca_m = fm ⁢ M ⁢ J_uni - J_Na_Ca Vm dd time Ca_ER = fe ⁢ E ⁢ J_serca - J_erout Ve dd time Ca_i = fc ⁢ M ⁢ J_Na_Ca - J_uni - E ⁢ J_serca - J_erout Vc dd time h = d_INH - Ca_i + d_INH ⁢ h tau