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Table 4 Hepatic fatty acid composition in LZR and OZR rats fed CON, FLAX, FISH, or SDA diets for 12 weeks

From: Effect of stearidonic acid-enriched soybean oil on fatty acid profile and metabolic parameters in lean and obese Zucker rats

Fatty acid ( % of total)

Lean

Obese

Main effects

 
 

CON

FLAX

FISH

SDA

CON

FLAX

FISH

SDA

Genotype

Diet

Interaction

LA [18:2(n-6)]

1.19 ± 1.41

n.d.

n.d.

2.07 ± 1.42

0.86 ± 1.51

0.55 ± 1.19

0.99 ± 1.42

2.08 ± 1.49

P = 0.71

P = 0.25

P = 0.84

ALA [18:3(n-3)]

0.21 ± 0.17a

3.08 ± 0.17d

0.93 ± 0.18b

3.26 ± 0.17d

0.43 ± 0.18ab

1.78 ± 0.14c

0.63 ± 0.17ab

1.88 ± 0.18c

P = 0.0016†

P < 0.0001i

ΔP < 0.0001

SDA [18:4(n-3)]

n.d.

0.018 ± 0.26

0.81 ± 0.27

1.07 ± 0.25

0.15 ± 0.27

0.14 ± 0.21

0.19 ± 0.25

0.58 ± 0.26

P = 0.51

P = 0.0011ii

P = 0.17

AA [20:4(n-6)]

14.09 ± 0.83c

11.41 ± 0.85b

3.58 ± 0.89a

11.03 ± 0.83b

5.53 ± 0.89a

4.86 ± 0.70a

4.24 ± 0.83a

5.97 ± 0.88a

P < 0.0001†

P < 0.0001iii

ΔP < 0.0001

EPA [20:5(n-3)]

n.d.

0.50 ± 0.61a

6.20 ± 0.63c

4.94 ± 0.60c

0.63 ± 0.63a

0.79 ± 0.50a

2.37 ± 0.60b

2.67 ± 0.63b

P = 0.12

P < 0.0001ii

ΔP < 0.0001

DPA [22:5(n-3)]

0.12 ± 0.22a

1.33 ± 0.23bc

3.36 ± 0.24d

3.94 ± 0.22e

0.42 ± 0.24ab

0.77 ± 0.19b

1.70 ± 0.22c

1.88 ± 0.24c

P = 0.0006†

P < 0.0001iv

ΔP < 0.0001

DHA [22:6(n-3)]

2.26 ± 0.39ab

4.49 ± 0.40cd

10.11 ± 0.42e

3.28 ± 0.39bf

1.87 ± 0.42a

2.43 ± 0.33ab

5.63 ± 0.39d

3.36 ± 0.41bc

P = 0.0007†

P < 0.0001v

ΔP < 0.0001

∑SFA

36.48 ± 1.55c

36.12 ± 1.59c

27.83 ± 1.66a

32.41 ± 1.56b

38.85 ± 1.66d

41.14 ± 1.30d

39.88 ± 1.56d

39.43 ± 1.64d

P = 0.0010‡

P = 0.0055vi

ΔP = 0.0079

∑MUFA

41.99 ± 1.90

38.02 ± 1.85

33.93 ± 1.94

31.47 ± 1.82

46.57 ± 1.92

44.30 ± 1.51

39.91 ± 1.80

38.08 ± 1.90

P = 0.032†

P = 0.0084vi

P = 0.90

∑n3PUFA

1.92 ± 1.26a

9.38 ± 1.29b

21.82 ± 1.35d

16.88 ± 1.27c

3.65 ± 1.35a

6.02 ± 1.06e

10.76 ± 1.27b

10.94 ± 1.33b

P = 0.048†

P < 0.0001iv

ΔP = 0.0057

∑n6PUFA

15.28 ± 1.70a

10.6 ± 1.74bc

3.04 ± 1.82d

13.1 ± 1.71ab

6.39 ± 1.82de

5.41 ± 1.43de

5.23 ± 1.71de

8.05 ± 1.80ce

P = 0.0040†

P < 0.0001iii

ΔP < 0.0001

  1. ΔDifferent letters represent significance among means as determined by Bonferroni correction (P < 0.05).
  2. Genotype Effect: †Lean > Obese; ‡Obese > Lean.
  3. Diet Effect: iSDA, FLAX > FISH, CON; iiSDA, FISH > FLAX, CON; iiiCON > SDA, FLAX > FISH; ivFISH > SDA > FLAX > CON; vFISH > SDA, FLAX > CON; viCON, FLAX > FISH, SDA.
  4. n.d.- not detectable.