NI Jianteng, MA Zhijie, ZHANG Cong’en, et al. Research on Inhibitory Effect of Coptidis Rhizoma and Radix Scutellariae on Acinetobacter Baumannii in Vitro[J]. 2020,20(9):1086-1089.
NI Jianteng, MA Zhijie, ZHANG Cong’en, et al. Research on Inhibitory Effect of Coptidis Rhizoma and Radix Scutellariae on Acinetobacter Baumannii in Vitro[J]. 2020,20(9):1086-1089. DOI: 10.14009/j.issn.1672-2124.2020.09.016.
OBJECTIVE: To probe into the inhibitory effect of coptidis rhizoma and radix scutellariae on Acinetobacter baumannii in vitro
so as to provide guidance for clinical medication. METHODS: Micro broth dilution method was adopted to observe the in vitro inhibitory effects of coptidis rhizoma
radix scutellariae
berberine hydrochloride and baicalin on Acinetobacter baumannii when used alone or in combination with tigecycline. The concentrations of aqueous extract of coptidis rhizoma and radix scutellariae were set as 0. 38
0. 75
1. 50
3. 00 and 6. 00 mg/ml (concentration of crude drug); the concentrations of aqueous extract of berberine hydrochloride and baicalin were set as 5. 00
10. 00
20. 00
40. 00 and 80. 00 μmol/L; the concentrations of tigecycline were set as 0. 11
0. 21
0. 43
0. 86 and 1. 71 μmol/L; the concentration of A. baumannii was (2. 00-3. 00) ×10
5
CFU/ml; and the culture condition was 35 ℃
16 h. RESULTS: The antibacterial effect increased with the increase of the concentration of coptidis rhizoma
radix scutellariae
berberine hydrochloride and baicalin
and the dose-effect relationship was significant. At the same drug concentration
the coptidis rhizoma had better inhibitory effect on A.baumannii than that of the radix scutellariae
the berberine hydrochloride had better inhibitory effect on A. baumannii than that of the baicalin
with statistically significant differences (P
<
0. 05). The combination of tigecycline with coptidis rhizoma
radix scutellariae
berberine hydrochloride
baicalin can enhance its inhibitory effect on A.baumannii
at a certain concentration of tigecycline
when coptidis rhizoma
radix scutellariae
berberine hydrochloride and baicalin were for drug combination with tigecycline
the dosage of tigecycline can be appropriately reduced. CONCLUSIONS: Coptidis rhizoma
radix scutellariae
berberine hydrochloride and baicalin have a certain inhibitory effect on A. baumannii in vitro
and their combined use with tigecycline can be considered to moderately reduce the amount of tigecycline.