Abstract
Properties theory of traditional Chinese medicine has been used thousands of years. Borneol, an important drug, was widely used for acute illness—“Rebi” in Chinese. However, in Chinese Pharmacopoeia (Ch.P), borneol is recorded as three kinds: l-borneol (B1), d-borneol (B2) and synthetic borneol (B3). In the study, the power–time (P–t) curves generated by P. aeruginosa which were disturbed by borneol were investigated through microcalorimetry; afterward, some thermo-kinetic parameters were obtained from the curves to characterize the metabolism of P. aeruginosa. The parameters were analyzed by principal component analysis. The results showed that borneol expressed different drugs properties. The half-maximal influences concentration (IC50) value of B1 was lower than those of B2 and B3. Especially, the IC50 of B1 was 447.185 μg mL−1. The influences of three kinds of borneol were l-borneol (B1) > synthetic borneol (B3) > d-borneol (B2), which met the long-term cognition. This could provide guidance for clinical use of borneol with different drugs properties.
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Abbreviations
- TCM:
-
Traditional Chinese medicine
- Ch.P:
-
Chinese Pharmacopoeia
- B1 :
-
l-borneol
- B2 :
-
d-borneol
- B3 :
-
Synthetic borneol
- PCA:
-
Principal component analysis
- I :
-
Influence rate
- IC50:
-
Half-maximal inhibitory concentration
- CHM:
-
Chinese herbal medicine
- CGMCC:
-
China General Microbiological Culture Collection Center
- LB:
-
Luria–Bertani
- TAM:
-
Thermal activity monitor
- CFU:
-
Colony-forming units
- PCs:
-
Principal components
- PLS-DA:
-
Partial least squares discriminant analysis
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Acknowledgements
The authors thank reviewers for their critical comments provided during revision and also wish to thank all authors of references. This work was financially supported by grants from National Natural Science Foundation of China (81473371, 81703725 and J1310034) and Sichuan Province Clinical Chinese Pharmacy Science and Technology Innovation Youth Team (2017TD0001).
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Ma, X., Xie, Q., Wu, M. et al. Microcalorimetric study of the effect of l-borneol, d-borneol and synthetic borneol on the growth of P. aeruginosa . J Therm Anal Calorim 131, 1681–1689 (2018). https://doi.org/10.1007/s10973-017-6627-3
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DOI: https://doi.org/10.1007/s10973-017-6627-3