Table 1.

Phosphatidylcholine hydroperoxide (PCOOH) and phosphatidylethanolamine hydroperoxide (PEOOH) concentrations in microsomes and plasma membranes of rat hepatocytes

	Age (months)	PCOOH (pmol/mg protein)	PEOOH (pmol/mg protein)	PCOOH + PEOOH (pmol/mg protein)
Microsomes	2 (n = 5)	12 ± 5	6 ± 3	17 ± 8
	17 (n = 9)	34 ± 14*	12 ± 5**	46 ± 18*
Plasma membranes	2 (n = 5)	23 ± 4	9 ± 2	31 ± 5
	17 (n = 9)	225 ± 96***	81 ± 31***	306 ± 126***

Values represent mean ± SD. Figures in parenthesis show the number of rats examined.

*P < 0.01, compared with PCOOH or PCOOH + PEOOH in the 2-month-old group; **P < 0.05, compared with PEOOH in the 2-month-old group; ***P < 0.001, compared with the respective hydroperoxide in the 2-month-old group.

Adapted with permission from Ref. 47. Copyright 1998 Elsevier.