Table 2. The effects of Tet on I_Na density in SR and AF atrial myocytes. Mean±SEM. ^cP <0.01 vs control.

			Maximal INa density (pA/pF)
CTet	0 μmol/L	40 μmol/L	60 μmol/L	80 μmol/L	100 μmol/L	120 μmol/L	Wash out
SR	−58.6±7.8	−53.3±8.5	−42.1±6.9c	−31.3±6.2c	−18.9±5.7c	−7.3±2.6c	−49.6±10.8
	(n=26)	(n=10)	(n=12)	(n=10)	(n=8)	(n=8)	(n=5)
AF	−61.8±8.8	52.7±9.5	−43.4±7.1c	−34.4±6.0c	−13.7±4.3c	−5.2±2.2c	−53.7±11.8
	(n=19)	(n=8)	(n=10)	(n=8)	(n=7)	(n=7)	(n=4)

SR: sinus rhythm. AF: atrial fibrillation. C_Tet: concentration of tetrandrine.