Skip to main content

Table 4 Sarcolemmal membrane 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

       

16:0

10.3 ± 0.28b

13.3 ± 0.39a

12.5 ± 0.36a

11.4 ± 0.87

12.9 ± 0.53

12.5 ± 0.38

-

18:0

21.6 ± 0.36

23.4 ± 0.36

22.8 ± 0.50

27.0 ± 1.50***

25.1 ± 0.93

24.5 ± 1.00

-

18:1 n-9

4.8 ± 0.04

4.5 ± 0.28

5.5 ± 0.12

5.0 ± 0.35a

4.1 ± 0.24b

5.2 ± 0.35a

-

18:1 n-7

2.9 ± 0.07

2.5 ± 0.05

2.7 ± 0.10

2.9 ± 0.17a

2.4 ± 0.06b

2.9 ± 0.13a

-

18:2 n-6

26.5 ± 0.75a

21.5 ± 0.61b

26.3 ± 0.60a

22.7 ± 1.75b

22.2 ± 0.87b

26.5 ± 1.49a

-

18:3 n-3

<0.1b

<0.1b

1.3 ± 0.04a

<0.1b

<0.1b

1.1 ± 0.12a **

-

20:4 n-6

22.2 ± 0.22a

10.8 ± 0.24c

14.0 ± 0.35b

21.3 ± 1.11a

10.8 ± 0.52c

13.0 ± 0.30b

-

20:5 n-3

<0.1c

0.8 ± 0.04b

1.2 ± 0.07a

<0.1b

1.2 ± 0.25a

1.3 ± 0.07a

-

22:4 n-6

1.2 ± 0.04a

<0.1b

<0.1b

1.0 ± 0.05a ***

<0.1b

<0.1b

-

22:5 n-6

2.7 ± 0.15a

0.7 ± 0.02b

<0.1c

2.5 ± 0.20a

0.5 ± 0.02b

<0.1c

-

22:5 n-3

0.7 ± 0.03b

0.7 ± 0.04b

3.4 ± 0.15a

0.5 ± 0.04b

0.7 ± 0.13b

2.8 ± 0.11a **

$

22:6 n-3

3.9 ± 0.10c

19.2 ± 1.01a

7.5 ± 0.32b

2.7 ± 0.10c *

17.3 ± 1.00a *

6.5 ± 0.47b *

-

SFA

32.6 ± 0.28

37.5 ± 0.58

36.1 ± 0.60

39.5 ± 2.43**

38.8 ± 1.45

37.9 ± 1.35

-

MUFA

8.8 ± 0.11a

7.7 ± 0.34b

9.1 ± 0.25a

9.1 ± 0.50a

7.8 ± 0.32b

10.0 ± 0.47a

-

PUFA

58.7 ± 0.29

54.8 ± 0.83

54.8 ± 0.59

51.4 ± 2.90**

53.4 ± 1.74

52.1 ± 1.45

-

n-6 PUFA

53.7 ± 0.29a

33.8 ± 0.61c

41.2 ± 0.39b

48.0 ± 2.78a *

34.0 ± 1.28c

40.1 ± 1.29b

-

n-3 PUFA

4.9 ± 0.25c

20.9 ± 1.00a

13.6 ± 0.28b

3.3 ± 0.15c *

19.4 ± 0.88a

12.0 ± 0.62b

-

LA/AA ratio

1.2 ± 0.04b

2.0 ± 0.06a

1.9 ± 0.08a

1.1 ± 0.04b

2.1 ± 0.07a

2.0 ± 0.14a

-

AA/DHA ratio

5.7 ± 0.15a

0.6 ± 0.03c

1.9 ± 0.10b

8.0 ± 0.17a ***

0.6 ± 0.04c

2.1 ± 0.16b

-

n-6/n-3 ratio

11.0 ± 0.57a

1.6 ± 0.10c

3.0 ± 0.05b

14.6 ± 0.50a ***

1.8 ± 0.10c

3.4 ± 0.21b

-

P/S ratio

1.8 ± 0.02

1.5 ± 0.04

1.5 ± 0.04

0.8 ± 0.09b **

1.4 ± 0.09a

1.4 ± 0.08a

-

  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.