Tumors/Animal ±S.E.

Retinoids

N

Week 15

Tumor Size (mm²)

DMBA/TPA

15

9.2 ± 6.8

313.5

t-Retinoic acid

8

1.0 ± 1.0

14.5

N-(Oxoestra-1,3,5(10)-trien-yl-retinamide

8

6.4 ± 4.0

128

4-Oxo-3(2-propenyl)retinoic acid

7

4.3 ± 4.3

61.5

4-Oxo-3-(2-propenyl)retinyl methyl ester

7

3.9 ± 3.2

54.3

4-Oxo-3-(2-propnyl)retinoic acid

8

5.9 ± 5.2

126

3-Ethyl-4-oxoretinyl methyl ester

8

6.0 ± 5.8

276

3,3-Dimethyl4-oxoretinyl methyl ester

7

2.0 ± 4.0

40

3-Ethyl 4-oxoretinyl methyl ester

8

7.1 ± 5.8

94

4-Oxo-3-(2-propenyl)retinyl methyl ester

7

3.7 ± 3.5

72.5

TMMP analog of retinol

7

13.7 ± 10.2

504.5

TMMP analog of retinol

Log of retinyl methyl ether

8

11.9 ± 7.1

228

(E)-4[-2-(5,6,7,8-Tetra hydro-8,8-dimethyl

2-Naphthyl)propenyl]phenylmethanol

8

1.0 ± 1.3

4

(E)-4[-2-(5,6,7,8-Tetra hydro-8,8-dimethyl

2-Naphthylpropenyl]benzoic acid

7

2

(2E,4E,6E)-3-Methyl-7(5,6,7,8-tetrahydro[-

7

1.7 ± 2.0

12

8,8-Dimethyl)2-naphthyl)2,4,6-oxoretinoic acid

Acetone

15

0

Acetone/TPA

15

0

DMBA/Acetone

7

0