Table 2 Effect of green tea (G), licorice (L) or their mixture on levels of plasma thyroid stimulating hormone (TSH), triiodothyronine (T₃), and tetraiodothyronine (T₄), Thyroxine 5'-DI of normal and dimethylnitrosamine (D)-intoxicated male albino rats.

Mean ± SE

% of

change

Mean ± SE

% of

change

Mean ± SE

% of

change

Mean ± SE

% of

change

Control

0.09 ± 0.009^g

31.7 ± 1.10^b

792.7 ± 22.0^a

1.47 ± 0.086^b

D

0.21 ± 0.003^f

+133.33

7.1 ± 0.30^c

-77.60

183.0 ± 5.70^d

-76.91

1.89 ± 0.048^a

+28.57

G

0.29 ± 0.010^c

+ 222.22

34.1 ± 0.69^a

+ 7.57

777.8 ± 26.4^a

-1.88

1.21 ± 0.033^bc

-17.69

L

0.20 ± 0.005^f

+ 122.22

32.1 ± 0.74^b

+ 1.26

610.4 ± 16.2^b

-23.00

1.91 ± 0.105^a

+29.93

G + L

1.35 ± 0.002^a

+ 1400

29.3 ± 0.44^c

-7.57

581.1 ± 18.1^b

-27.69

0.96 ± 0.056^d

-34.69

D + G

0.25 ± 0.007^d

+ 19.05

12.3 ± 0.58^d

+ 73.24

234.2 ± 8.7^c

+27.98

1.19 ± 0.090^c

-37.04

D + L

0.85 ± 0.016^b

+ 305.76

7.7 ± 0.28^c

+ 8.45

195.7 ± 7.5^cd

+6.94

1.44 ± 0.113^b

-23.81

D+G+L

0.23 ± 0.012^dc

+ 9.52

8.2 ± 0.51^c

15.49

195.6 ± 5.2^cd

+6.89

0.78 ± 0.036^d

-58.73