TABLE 4.

Astrocyte membrane transporter equations.

Membrane current	Equation(s)	Source
IKir	${\mathrm{I}}_{\mathrm{Kir}}={\mathrm{g}}_{\mathrm{kir}}*\sqrt{{\mathrm{K}}_{\mathrm{syn}}}*\left({\mathrm{V}}_{\mathrm{a}}-{\mathrm{E}}_{\mathrm{K}}\right);$	Witthoft et al., 2013
INKCC	${\mathrm{I}}_{\mathrm{NKCC}}={\mathrm{I}}_{\mathrm{NKCC},\max }log\left(\left({\displaystyle \frac{{\mathrm{Na}}_{\mathrm{syn}}}{{\mathrm{Na}}_{\mathrm{ast}}}}\right)\left({\displaystyle \frac{{\mathrm{K}}_{\mathrm{syn}}}{{\mathrm{K}}_{\mathrm{ast}}}}\right){\left({\displaystyle \frac{{\mathrm{Cl}}_{\mathrm{syn}}}{{\mathrm{Cl}}_{\mathrm{ast}}}}\right)}^2\right)$	Witthoft et al., 2013
INCX	${\mathrm{I}}_{\mathrm{NCX}}={\mathrm{I}}_{\mathrm{NCXmax}}\left({\left({\displaystyle \frac{{\mathrm{Na}}_{\mathrm{ast}}}{{\mathrm{Na}}_{\mathrm{syn}}}}\right)}^3{\mathrm{e}}^{\frac{\mathrm{\gamma }{\mathrm{FV}}_{\mathrm{a}}}{\mathrm{RT}}}-\left({\displaystyle \frac{{\mathrm{Ca}}_{\mathrm{ast}}}{{\mathrm{Ca}}_{\mathrm{syn}}}}\right){\mathrm{e}}^{\frac{\left(\mathrm{\gamma }-1\right){\mathrm{FV}}_{\mathrm{a}}}{\mathrm{RT}}}\right)$	Schutter and Smolen, 1998
IEAAT	IEAAT=−αEAAT⋅e−βEAAT(Va−EEAAT)
	${\mathrm{E}}_{\mathrm{EAAT}}={\displaystyle \frac{\mathrm{RT}}{2\mathrm{F}}}\ln \left({\left({\displaystyle \frac{{\mathrm{Na}}_{\mathrm{syn}}}{{\mathrm{Na}}_{\mathrm{ast}}}}\right)}^3\left({\displaystyle \frac{{\mathrm{H}}_{\mathrm{syn}}}{{\mathrm{H}}_{\mathrm{ast}}}}\right)\left({\displaystyle \frac{{\mathrm{Glu}}_{\mathrm{syn}}}{{\mathrm{Glu}}_{\mathrm{ast}}}}\right)\left({\displaystyle \frac{{\mathrm{K}}_{\mathrm{ast}}}{{\mathrm{K}}_{\mathrm{syn}}}}\right)\right)$	Flanagan et al., 2018
INKA	${\mathrm{I}}_{\mathrm{NKA}}={\mathrm{I}}_{\mathrm{NKAmax}}\left({\displaystyle \frac{{\mathrm{Na}}_{\mathrm{ast}}^{1.5}}{{\mathrm{Na}}_{\mathrm{ast}}^{1.5}+{\mathrm{K}}_{\mathrm{Nai}}^{1.5}}}\right)\left({\displaystyle \frac{{\mathrm{K}}_{\mathrm{syn}}}{{\mathrm{K}}_{\mathrm{syn}}+{\mathrm{K}}_{\mathrm{Ke}}}}\right)$	Halnes et al., 2013
IGAT	IGAT=ggat(V_a−EGAT);
	EGAT = ${\displaystyle \frac{\mathrm{RT}}{\mathrm{F}}}\ln \left({\left({\displaystyle \frac{{\mathrm{Na}}_{\mathrm{syn}}}{{\mathrm{Na}}_{\mathrm{ast}}}}\right)}^2\left({\displaystyle \frac{{\mathrm{GABA}}_{\mathrm{syn}}}{{\mathrm{GABA}}_{\mathrm{ast}}}}\right)\left({\displaystyle \frac{{\mathrm{Cl}}_{\mathrm{syn}}}{{\mathrm{Cl}}_{\mathrm{ast}}}}\right)\right)$	Adapted from Verkhratsky and Nedergaard (2018)
IX,L	IX,L=gX(Va−EX)
	${\mathrm{E}}_{\mathrm{X}}={\displaystyle \frac{\mathrm{RT}}{{\mathrm{z}}_{\mathrm{X}}F}}ln\left({\displaystyle \frac{{\mathrm{X}}_{\mathrm{out}}}{{\mathrm{X}}_{\mathrm{in}}}}\right)forX=N{\mathrm{a}}_{\mathrm{ast}},{\mathrm{K}}_{\mathrm{ast}},Gl{\mathrm{u}}_{\mathrm{ast}},C{\mathrm{a}}_{\mathrm{ast}}$