Table 2. Enhanced lignan uptake rate mediated by glycoprotein SC-2.

Incubation time, (min)	Schisandrin B		Schisandrin B+SC-2a
	Uptake (µM)	Decay rate constant, k1(min−1)	Uptake (µM)	Decay rate constant, k2 (L•mmol−1 min−1)
0	47b	-	46b	-
5	54±2	0.0140b	58±2	2.016×10−5 b
15	68±3	0.0140	82±2**	2.016×10−5
30	76±3	0.0053	86±4*	2.269×10−6
60	82±3	0.0020	91±5	1.429×10−6
90b	86b	0.0013b	93b	5.865×10−7 b
120b	82b	−00013b	89b	−1.092×10−6 b

^aDose of SC-2 (MW: 841 kDa): 1 mg/mL ( = 1.1891×10⁻³ mM) (^* p<0.05; ^** p<0.01).

^bValues obtained by extrapolation.