Table 1

Effect of aqueous extract of burdock roots on mating behavior in male rats

Sexual-

behavior

parameters

Days of treatment

Mean frequency ± S.E.M.


Control

Burdock extract 300 mg/kg

Burdock extract 600 mg/kg

Burdock extract 1,200 mg/kg

Viagra (60 mg/kg)


IF

3rd day

10.6 ± 0.8

11.8 ± 1.4

12.0 ± 1.2

13.2 ± 0.9

15.00 ± 1.3*


7th day

11.4 ± 1.6

13.4 ± 1.5

15.2 ± 1.1

16.2 ± 0.8*

15.8 ± 1.6*


15th day

10.8 ± 0.9

13.8 ± 1.4

15.0 ± 1.2*

19.4 ± 0.9**

21.6 ± 1.8**


MF

3rd day

13.6 ± 0.9

14.6 ± 2.5

15.4 ± 1.3

17.0 ± 1.4

19.8 ± 1.9*


7th day

13.4 ± 1.5

17.6 ± 1.5

19.4 ± 2.1*

21.2 ± 2.5*

20.2 ± 2.0*


15th day

12.8 ± 1.1

16.6 ± 1.5

22.4 ± 1.6**

27.2 ± 2.0**

30.6 ± 2.4**


IL

3rd day

119.2 ± 9.3

117.8 ± 11.4

115.6 ± 8.7

105.0 ± 10.4

89.4 ± 5.9*


7th day

117.6 ± 7.5

104.0 ± 9.0

89.2 ± 5.1**

78.0 ± 4.5**

64.6 ± 7.1**


15th day

108.6 ± 11.9

89.8 ± 8.0

78.4 ± 3.7**

59.0 ± 5.0**

55.4 ± 4.6**


ML

3rd day

107.0 ± 5.5

96.4 ± 6.4

93.6 ± 5.2

90.2 ± 7.4

72.0 ± 5.7**


7th day

100.2 ± 4.9

84.2 ± 3.9

74.2 ± 9.1**

60.4 ± 4.3**

58.6 ± 4.2**


15th day

94.0 ± 9.6

77.6 ± 8.6

63.6 ± 2.7**

48.2 ± 3.1**

44.4 ± 2.8**


EF

3rd day

1.8 ± 0.4

2.2 ± 0.4

2.4 ± 0.6

2.8 ± 0.4

2.6 ± 0.5


7th day

2.2 ± 0.3

2.8 ± 0.6

3.0 ± 0.5

3.2 ± 0.6

3.4 ± 0.6


15th day

2.0 ± 0.3

3.0 ± 0.3

3.4 ± 0.5*

3.6 ± 0.6*

3.8 ± 0.4**


EL

3rd day

213.1 ± 15.1

215.9 ± 16.8

221.6 ± 25.0

231.2 ± 19.4

250.3 ± 13.8


7th day

220.3 ± 13.3

251.2 ± 15.1

262.3 ± 23.9

281.3 ± 20.5*

284.8 ± 24.7*


15th day

211.1 ± 13.4

260.3 ± 19.8

294.3 ± 29.7**

329.2 ± 12.4**

335.8 ± 17.7**


PEI

3rd day

414.8 ± 26.2

399.4 ± 28.1

416.5 ± 20.5

410.5 ± 30.3

353.8 ± 16.7


7th day

439.6 ± 23.5

386.6 ± 32.3

347.9 ± 26.6*

327.4 ± 23.4**

332.5 ± 21.1**


15th day

426.6 ± 39. 3

345.9 ± 28.5*

297.8 ± 17.4**

268.3 ± 21.9**

258.5 ± 19.4**


ML, mounting latency; IL, intromission latency; EL, ejaculation latency; MF, mounting frequency; IF, intromission frequency; EF, ejaculation frequency; PEI, post-ejaculatory interval. S.E.M.: mean standard error. n = 6 (number of animals in each group), significant difference from control, significance level: *p < 0.05, **p < 0.01

JianFeng et al. BMC Complementary and Alternative Medicine 2012 12:8   doi:10.1186/1472-6882-12-8

Open Data