Table 2.

Flavanol metabolites identified in the brains of mice after 6 weeks of supplementation with polyphenol-rich extract from grape and blueberry (PEGB)

(Mean values of replicates with their standard errors)

	Brain content (pmol/g)
	Adult control (n 3)	Adult PEGB (n 10)		Aged control (n 3)	Aged PEGB (n 10)
Metabolite	Mean	Mean	sem	Mean	Mean	sem
(−)-Epicatechin	nd	3·54	1·58	nd	8·84	4·87
(+)-Catechin	nd	0·88	0·47	nd	7·07	3·32
Methyl catechin glucuronide	nd	5·60	2·71	nd	3·15	1·12
Catechin glucuronide	nd	0·81	0·59	nd	1·39	0·61

nd, Not detected.