International Journal of Phytomedicine and Phytotherapy
Table 4 Results representing the percentage of protection against thermal stimulus of the total ethanolic extract and different fractions of A. hirtum leaves
Group | % Protection | ||||||
|---|---|---|---|---|---|---|---|
0 h | 30 min | 1 h | 2 h | 3 h | 4 h | 5 h | |
Total extract (300 mg/kg) | 3.87 | −5.22 | 52.01 | 53.26 | 157.37 | 168.57 | 183.05 |
Petroleum ether fraction (300 mg/kg) | 1.72 | 0.13 | 16.53 | 58.16 | 133.10 | 181.17 | 189.83 |
Chloroform fraction (300 mg/kg) | 10.91 | 13.18 | 21.77 | 53.80 | 88.77 | 163.36 | 186.94 |
Ethyl acetate fraction (300 mg/kg) | −9.91 | −9.34 | −7.66 | −5.83 | 7.02 | −0.42 | −0.42 |
Aqueous fraction (300 mg/kg) | 7.75 | 24.16 | 38.70 | 54.49 | 82.03 | 161.00 | 216.61 |
Acetylsalicylic acid (100 mg/kg) | −3.10 | 11.25 | 15.32 | 28.81 | 57.87 | 121.34 | 186.44 |