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Table 3 Cardiac phospholipids fatty acid profiles (% of total fatty acids) from rats fed experimental diets for 2 or 6 months.

From: Effects of alpha-linolenic acid vs. docosahexaenoic acid supply on the distribution of fatty acids among the rat cardiac subcellular membranes after a short- or long-term dietary exposure

Duration (months)

2

2

2

6

6'

6

 

Dietary groups

CTL

DHA

ALA

CTL

DHA

ALA

 

Fatty Acids

      

CI

16:0

9.8 ± 0.56

11.5 ± 0.52

11.2 ± 0.78

10.0 ± 0.76

12.3 ± 0.42

11.4 ± 0.49

-

18:0

24.9 ± 0.38

24.7 ± 0.32

25.5 ± 0.43

25.5 ± 0.48

24.7 ± 0.47

25.0 ± 0.36

-

18:1 n-9

3.5 ± 0.27

3.2 ± 0.15

3.6 ± 0.30

3.5 ± 0.14

3.2 ± 0.30

3.8 ± 0.09

-

18:1 n-7

2.9 ± 0.24a

2.2 ± 0.06b

2.6 ± 0.13ab

2.7 ± 0.11

1.9 ± 0.26

2.7 ± 0.07

-

18:2 n-6

20.5 ± 2.32

17.2 ± 1.39

20.9 ± 1.18

19.7 ± 1.63ab

17.8 ± 0.65b

22.7 ± 0.40a

-

18:3 n-3

<0.1b

<0.1b

0.8 ± 0.05a

<0.1b

<0.1b

0.9 ± 0.04a

-

20:4 n-6

24.6 ± 0.66a

12.3 ± 0.32c

16.2 ± 0.46b

26.6 ± 0.73a *

12.2 ± 0.26c

15.4 ± 0.32b

$

20:5 n-3

<0.1c

0.9 ± 0.05b

1.4 ± 0.06a

<0.1c

0.9 ± 0.05b

1.5 ± 0.06a

-

22:4 n-6

1.7 ± 0.23a

<0.1b

<0.1b

1.5 ± 0.04a

<0.1b

<0.1b

-

22:5 n-6

3.9 ± 0.61a

0.8 ± 0.03b

<0.1c

3.6 ± 0.07a

0.7 ± 0.01b

<0.1c

 

22:5 n-3

0.7 ± 0.05b

0.8 ± 0.04b

4.5 ± 0.46a

0.8 ± 0.06b

0.7 ± 0.03b

4.3 ± 0.16a

-

22:6 n-3

4.6 ± 0.45c

24.2 ± 0.64a

10.3 ± 1.06b

4.0 ± 0.32c

23.4 ± 0.80a

9.8 ± 0.83b

-

SFA

35.6 ± 0.72

36.9 ± 0.70

37.3 ± 1.20

36.3 ± 1.26

37.8 ± 0.84

37.2 ± 0.83

-

MUFA

7.0 ± 0.49

6.1 ± 0.16

7.0 ± 0.48

6.9 ± 0.20ab

5.8 ± 0.27b

7.4 ± 0.21a

-

PUFA

57.5 ± 0.81

57.0 ± 0.61

55.7 ± 1.62

56.8 ± 1.17

56.4 ± 0.89

55.4 ± 1.01

-

n-6 PUFA

52.1 ± 0.91a

31.0 ± 1.25c

38.5 ± 1.28b

51.9 ± 0.89a

31.2 ± 0.64c

38.8 ± 0.24b

-

n-3 PUFA

5.4 ± 0.49c

26.0 ± 0.69a

17.1 ± 1.47b

4.8 ± 0.37c

25.2 ± 0.77a

16.5 ± 0.87b

-

LA/AA ratio

0.8 ± 0.11b

1.4 ± 0.14a

1.3 ± 0.11a

0.7 ± 0.08b

1.5 ± 0.06a

1.5 ± 0.06a

-

AA/DHA ratio

5.5 ± 0.48a

0.5 ± 0.02c

1.6 ± 0.17b

6.8 ± 0.73a *

0.5 ± 0.02c

1.6 ± 0.15b

-

n-6/n-3 ratio

10.0 ± 1.08a

1.2 ± 0.08c

2.3 ± 0.21b

10.8 ± 0.73a

1.2 ± 0.05c

2.4 ± 0.12b

-

P/S ratio

0.6 ± 0.02

0.6 ± 0.02

0.7 ± 0.04

0.6 ± 0.04

0.7 ± 0.03

0.7 ± 0.03

-

  1. SFA. MUFA. and PUFA. saturated. monounsaturated. and polyunsaturated FA; CTL. n-3 PUFA free diet; DHA. docosahexaenoic acid-rich diet; ALA. alpha linolenic acid-rich diet.
  2. Data are means ± SEM. n = 6. Dietary effect (CTL versus DHA versus ALA) was compared in rats from the same dietary treatment duration and values with different letters are statistically different. a>b>c. p < 0.01. Time effect (2 months versus 6 months) was compared between rats from the same dietary group. with * = p < 0.05; ** = p < 0.01. *** = p < 0.001). Symbol $ denoted significant cross-interaction. p < 0.05.