Table 4 Lipid class composition of lipid rafts from control subjects, PD and iPD.

Sphingomyelin

11.43 ± 1.44

8.05 ± 0.64

10.30 ± 1.52

PC

5.35 ± 0.49

6.42 ± 0.49

7.11 ± 0.76

PS

6.82 ± 0.50^b

7.54 ± 0.55^ab

9.31 ± 0.46^a

PI

2.16 ± 0.17^b

2.20 ± 0.20^b

3.00 ± 0.24^a

Phosphatidylglycerol

0.70 ± 0.10

0.86 ± 0.19

1.09 ± 0.21

PE

20.97 ± 0.57^b

23.54 ± 0.36^a

22.14 ± 0.53^ab

Sulfatides

10.56 ± 0.68^a

10.35 ± 0.98^ab

7.37 ± 0.84^b

Cerebrosides

5.10 ± 0.79^a

5.98 ± 0.69^a

2.52 ± 0.60^b

Diacylglycerols

0.00 ± 0.00

0.00 ± 0.00

0.0 ± 0.0

Cholesterol

33.04 ± 1.18

30.43 ± 1.17

35.16 ± 1.96

Free fatty acids

2.17 ± 0.28^a

2.70 ± 0.32^a

0.88 ± 0.31^b

Triglycerides

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

Sterol esters

1.68 ± 0.60

1.94 ± 0.31

1.11 ± 0.57

Neutral lipids

36.90 ± 1.41

35.08 ± 1.23

37.15 ± 1.35

Polar lipids

63.09 ± 1.41

64.92 ± 1.23

62.85 ± 1.35

Phospholipid/cholesterol

1.11 ± 0.06^b

1.35 ± 0.09^a

1.26 ± 0.12^ab