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Table 2 Serum Levels of Isoflavones, Genistein and Daidzein, and Isoflavonoid Equol (all values in ng/ml ± 1.0)

From: Neuromodulation by soy diets or equol: Anti-depressive & anti-obesity-like influences, age- & hormone-dependent effects

Experiment

Diet

Genistein

Daidzein

Equol

Total (G+D+E)

1

Phyto-low

8.1 ± 0.6*

4.8 ± 0.7*

439.1 ± 80.5*

452.0 ± 80.4*

 

Phyto-600

45.3 ± 8.4

34.9 ± 6.7

932.3 ± 121.4

1012.5 ± 135.5

2

Phyto-low

7.1 ± 1.4*

7.0 ± 0.8*

345.5 ± 97.1*

359.5 ± 96.5*

 

Phyto-600

32.1 ± 11.8

30.5 ± 5.1

753.5 ± 76.6

816.1 ± 81.0

3

Phyto-low

5.3 ± 1.1*

3.1 ± 0.3*

4.1 ± 0.4*

12.4 ± 1.4*

 

Phyto-600

48.5 ± 8.6

38.2 ± 7.0

495.6 ± 33.3

582.3 ± 31.2

4

Phyto-low

8.3 ± 0.4*

8.0 ± 1.7*

779.2 ± 60.4 #

792.2 ± 63.7 #

 

Phyto-600

36.0 ± 7.8

40.4 ± 9.2

415.1 ± 64.9

491.5 ± 76.3

5

Phyto-low

    
 

Before

4.6 ± 0.8*

3.1 ± 0.3*

4.0 ± 0.4*

11.1 ± 1.2*

 

After

3.7 ± 0.5*

3.1 ± 0.3*

376.3 ± 92.9

383.3 ± 92.0

 

Phyto-600

    
 

Before

31.4 ± 6.3

36.1 ± 7.1

339.7 ± 13.7

407.3 ± 27.0

 

After

25.2 ± 5.0

34.2 ± 6.5

321.6 ± 10.0

381.0 ± 21.0

  1. * Phyto-low value significantly lower than Phyto-600 value; # Phyto-low value significantly higher than Phyto-600
  2. value; ** Phyto-low Before value significantly lower than After value; Before refers to serum measured prior to 1st
  3. Porsolt test; After refers to serum measured after 2nd Porsolt test.