RESUMO
Objective The purpose of this study was to investigate the anti-inflammatory effects on acute and chronic inflammation ofHuamoyan Granules(HMYG).Methods KM mice and SD rats were randomly divided into model group, ibuprofen group and HMYG high, middle and low three dosages groups. The Ibuprofen group was administrated drug by gavage, mice 0.13 g/kg and rats 0.093 g/kg. The HMYG groups were administrated orally, mice 12, 6 and 3g/kg, rats 4, 4.2 and 2.1 g/kg. The model group was given the same volume distilled water, once a day, 3 or 10 continuous days. The increased permeability of mice abdominal capillary was induced by acetic acid, edema of rat hind paw was induced by albumen and carrageenin, which both were adopted to observe the acute anti-inflammatory effects; and cotton pellet granuloma was to observe the chronic anti- inflammation effects of HMYG.Results Compared with the model group, the ibuprofen group, the HMYG high and middle group showed anti-inflammatory actions of mice induced by acetic acid (0.185 ± 0.046, 0.177 ± 0.055, 0.190 ± 0.052vs. 0.246 ± 0.050,P<0.05 orP<0.01); after 0.5, 1, 2, 4 and 6 hrs inflammation, HMYG high dosage group had significant inhibition for the edema of rats hind paw induced byalbumen model, the inhibitory rate was 22.46%, 19.20% and 24.32%, 33.75%, 24.19%; 4 and 6 hrs after inflammation, HMYG high dosage group could reduce rats paw edema induced by carrageenin, the inhibitory rate was 32.05%, 30.56% and 19.23%, 20.83%.Conclusion HMYG has evident anti-inflammatory effects on acute inflammation.
RESUMO
Objective To compare the analgesic effect ofHuamoyan Keli(HMYKL) between Kunming mice and BALB/c mice.Methods Eighty Kunming mice and eighty BALB/c mice were randomly divided into five groups, respectively: a control group, a ibuprofen group, a HMYKL high-dose group(13.98 g crude dru g/kg), HMYKL middle-dose group(6.99 g crude drug/kg)and a HMYKL low-dose group(3.50 g crude dru g/kg). There were 16 mice in each group with 8 male mice and 8 female mice. Drugs were administered intragastrically daily for 5 days. After 1 h of drug treatment on day 4, the latency of tail-flick response was evaluated using illuminated pain measurement instrument. After the last drug treatment, pain model was established by i.p. acetic acid, writhing latency and writhing times were recorded to evaluate the analgesic effect of HMYKL.Results In tail-flick test, there was no statistical difference among male and female Kunming mice in the HMYKL groups. Among male BALB/c mice, the latency in HMYKL middle-dose group was significantly longer than that in the control group(4.84±1.16 minvs. 3.93±0.76 min,P<0.05). In writhing test, compared with control group(19.06±6.34), the writhing times among BALB/c mice were decreased in HMYKL high-dose group(8.56±6.19), HMYKL middle-dose group(5.73±3.17), HMYKL low-dose group(6.88±4.59)(allP<0.01).Conclusion All dose groups of HMYKL showed good analgesic effect on the pain induced by chemical stimulation and there was no sex difference. Kunming mice were not suitable for the evaluation of the analgesic pharmacodynamics because of their large individual difference. On contrast, BALB/c mice which had less individual difference could be used to produce the model of pain.