Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The asthma prevention effect of nandina leaf extract.
| Symptom class | Negative control | Guinea pig model of asthma | Positive control | Petroleum ether (mg/kg) | Ethyl acetate (mg/kg) | Nandina ethanol (mg/kg) | |||
|---|---|---|---|---|---|---|---|---|---|
| 50 | 25 | 50 | 25 | 50 | 25 | ||||
| I | 6 | 0 | 5 | 1 | 1 | 5 | 4 | 0 | 0 |
| II | 0 | 2 | 1 | 3 | 1 | 1 | 2 | 3 | 1 |
| III | 0 | 3 | 0 | 2 | 4 | 0 | 0 | 3 | 4 |
| IV | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
