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Table 5 Nuclear 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

      

CI

16:0

13.9 ± 0.4b

15.6 ± 0.46a

14.6 ± 0.33ab

13.2 ± 0.27b

15.3 ± 0.30a

14.7 ± 0.29ab

-

18:0

21.0 ± 0.37

20.3 ± 0.55

20.9 ± 0.47

21.7 ± 0.25

22.0 ± 0.54

21.7 ± 0.24

-

18:1 n-9

9.7 ± 0.68a

8.2 ± 0.46b

8.7 ± 0.34ab

9.5 ± 0.61a

8.2 ± 0.57b

9.2 ± 0.36ab

-

18:1 n-7

3.0 ± 0.08a

2.3 ± 0.07b

2.7 ± 0.10b

2.7 ± 0.03a *

2.2 ± 0.07b

2.8 ± 0.05b

-

18:2 n-6

23.4 ± 0.65a

16.7 ± 0.53c

21.2 ± 0.92b

22.8 ± 0.48a

16.9 ± 0.28c

20.5 ± 0.51b

-

18:3 n-3

<0.1b

<0.1b

2.5 ± 0.09a

<0.1b

<0.1b

2.7 ± 0.12a

-

20:4 n-6

18.0 ± 0.82a

9.4 ± 0.28c

13.1 ± 0.55b

19.6 ± 0.72a

9.5 ± 0.59c

12.3 ± 0.55b

-

20:5 n-3

<0.1c

0.8 ± 0.05b

1.2 ± 0.06a

<0.1c

0.9 ± 0.02b

1.3 ± 0.05a

-

22:4 n-6

1.3 ± 0.08a

<0.1b

<0.1b

1.3 ± 0.07a

<0.1b

<0.1b

 

22:5 n-6

2.4 ± 0.11a

0.9 ± 0.02b

<0.1c

2.6 ± 0.28a

0.8 ± 0.0b

<0.1c

 

22:5 n-3

0.6 ± 0.07c

1.0 ± 0.07b

3.8 ± 0.26a

0.6 ± 0.05c

0.9 ± 0.03b

3.8 ± 0.05a

-

22:6 n-3

3.0 ± 0.34c

21.2 ± 0.55a

7.8 ± 0.34b

2.7 ± 0.22c

20.0 ± 0.33a *

7.4 ± 0.41b

-

SFA

36.2 ± 0.36

37.3 ± 0.41

36.5 ± 0.39

36.4 ± 0.34b

38.7 ± 0.34a **

37.7 ± 0.18**

-

MUFA

14.2 ± 0.66

11.9 ± 0.64

13.0 ± 0.50

13.3 ± 0.66

11.7 ± 0.69

13.5 ± 0.38

-

PUFA

49.6 ± 0.86

50.8 ± 0.67

50.6 ± 0.56

50.3 ± 0.85

49.7 ± 0.48

48.8 ± 0.45

-

n-6 PUFA

45.8 ± 0.68a

27.6 ± 0.68c

35.3 ± 0.84b

46.8 ± 0.61a

27.7 ± 0.58c

33.5 ± 0.58b

-

n-3 PUFA

3.8 ± 0.39c

23.2 ± 0.63a

15.3 ± 0.58b

3.4 ± 0.25c

22.0 ± 0.30a

15.3 ± 0.41b

-

LA/AA ratio

1.3 ± 0.09b

1.8 ± 0.07a

1.6 ± 0.11ab

1.2 ± 0.07b

1.8 ± 0.12a

1.7 ± 0.10a

-

AA/DHA ratio

6.1 ± 0.48a

0.5 ± 0.02c

1.7 ± 0.09b

7.4 ± 0.36a *

0.5 ± 0.03c

1.7 ± 0.12b

$

n-6/n-3 ratio

12.5 ± 1.41a

1.2 ± 0.05c

2.3 ± 0.15b

14.0 ± 0.89a

1.3 ± 0.04c

2.2 ± 0.09b

-

P/S ratio

1.4 ± 0.03

1.4 ± 0.03

1.4 ± 0.03

1.4 ± 0.03

1.3 ± 0.01*

1.3 ± 0.02*

-

  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.