Table 1.

Lipid composition of C57BL/6J mouse brain mitochondria

Lipid	Non-synaptic	Synaptic
Ethanolamine glycerophospholipids	187.4 ± 12.1	211.7 ± 21.3
Phosphatidylethanolamine	164.9 ± 10.0	184.6 ± 20.3
Plasmenylethanolamine	22.5 ± 2.2	27.0 ± 1.0
Choline glycerophospholipids	129.9 ± 7.7	156.3 ± 26.1
Phosphatidylcholine	119.6 ± 5.3	137.4 ± 17.2
Plasmenylcholine	1.2 ± 0.1	2.4 ± 1.1
Plasmanylcholine	9.1 ± 3.2	16.5 ± 8.5
Cholesterol	139.0 ± 46.7	126.7 ± 31.2
Cardiolipin	52.7 ± 4.5	39.9 ± 3.4*
Phosphatidylinositol	9.4 ± 0.8	10.2 ± 0.9
Phosphatidylglycerol	7.1 ± 0.5	6.4 ± 0.7
Sphingomyelin	5.3 ± 1.2	6.5 ± 0.6
Phosphatidylserine	4.6 ± 1.5	14.1 ± 3.0*
Lysophosphatidylcholine	2.7 ± 0.6	3.3 ± 0.4
Ceramide	0.7 ± 0.2	1.6 ± 0.2**

Values are expressed as mean nmol/mg protein ± SD (n = 3). Significantly different values from NS mitochondria at

^*p < 0.02;

^**p < 0.005 as determined from the two-tailed t-test.