Table 2.

Extravascular Levels of Pterostilbene and Quercetin after Their Intravenous Administration to Mice.

Time (min)	Brain		Lung		Liver		Kidney
	PTER	QUER	PTER	QUER	PTER	QUER	PTER	QUER
5	5 ± 1	4 ± 1	36 ± 6	15 ± 3	14 ± 4	9 ± 3	3 ± 1	1 ± 0.2
10	2 ± 0.5*	2 ± 0.4*	15 ± 3*	8 ± 2*	7 ± 1*	3 ± 1*	3 ± 0.3	1 ± 0.5
30	n.d.	n.d.	6 ± 1*	2 ± 0.6*	3 ± 0.5*	1 ± 0.2*	2 ± 0.4	n.d.
60	n.d.	n.d.	2 ± 1*	n.d.	n.d.	n.d.	1 ± 0.3*	n.d.

Animals were treated with 20 mg of t-PTER or QUER (containing 5 µCi of ³H-t-PTER or 2 µCi of ¹⁴C-QUER) per kilogram body weight. A group of four to five mice was sacrificed for each time point.

Nondetectable = n.d.

^*P < .01 comparing data obtained at 10 to 60 minutes versus those found 5 minutes after polyphenol administration.