XIA Yu-ping,HE Chun-hua,CHAI Zi-shu,et al.Acute Toxicity and Hepatotoxicity of Aqueous Extracts of Taxilli Herba from Different Hosts in Zebrafish Model[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(21):91-97.
XIA Yu-ping,HE Chun-hua,CHAI Zi-shu,et al.Acute Toxicity and Hepatotoxicity of Aqueous Extracts of Taxilli Herba from Different Hosts in Zebrafish Model[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(21):91-97. DOI: 10.13422/j.cnki.syfjx.20212125.
Acute Toxicity and Hepatotoxicity of Aqueous Extracts of Taxilli Herba from Different Hosts in Zebrafish Model
To explore the acute toxicities and hepatotoxicities of aqueous extracts of Taxilli Herba from
Morus alba
,
Toxicodendron
trichocarpum
,
Camellia oleifera
,
Salix babylonica
,
Melia azedarach
, and
Nerium indicum
against zebrafish model and the effect of different hosts on the toxicity of Taxilli Herba, hoping to provide a theoretical basis for the safe use of Taxilli Herba.
Method
2
The normally developed AB zebrafish at 3-day post fertilization was selected for acute toxicity study. According to the results of preliminary toxicity experiments, the zebrafishes were treated with aqueous extracts of Taxilli Herba from different hosts at six doses, and their mortality was calculated 72 h later. GraphPad Prism 6.0 was used for plotting the dose-toxicity curve, followed by the calculation of their median lethal concentration (LC
50
) and 10% lethal concentration (LC
10
). The gz15Tg/+(AB) liver fluorescent protein transgenic zebrafish with normal development at 4-day post fertilization was applied for the hepatotoxicity study. The zebrafishes were divided into the low-, medium-, and high-dose groups of aqueous extracts of Taxilli Herba from six hosts, the positive control (acetaminophen) group, and the blank (embryo amniotic fluid) group, and then treated with the corresponding drugs. Seventy-two hours later, the liver morphology and fluorescent area changes in zebrafish were observed. And the activities of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were detected.
Result
2
The results of acute toxicity test demonstrated that the LC
50
values of water extracts of Taxilli Herba from
M. alba
,
T.
trichocarpum
,
C. oleifera
,
S. babylonica
,
M. azedarach
, and
N. indicum
were 1.24, 0.94, 0.51, 0.38, 0.11, 0.09 g·L
-1
, respectively, and the LC
10
values were 0.70, 0.60, 0.35, 0.28, 0.08, 0.07 g·L
-1
, respectively. As revealed by hepatotoxicity test, compared with the blank group, the positive control group exhibited liver morphological changes, decreased fluorescent area (
P
<
0.01), and elevated ALT and AST activities (
P
<
0.01), suggesting that acetaminophen was hepatotoxic to zebrafish. However, there was no change in the liver morphology or fluorescent area of zebrafish in the low-, medium-, and high-dose groups of water extracts of Taxilli Herba from
M. alba
, and the ALT and AST activities were decreased. By contrast, the liver morphology and fluorescent areas in the medium- and high-dose groups of water extracts of Taxilli Herba from
T.
trichocarpum
,
C. oleifera
,
S. babylonica
,
M. azedarach
, and
N. indicum
changed to varying degrees (
P
<
0.05,
P
<
0.01). Besides, the activities of both ALT and AST were also enhanced. These indicated that Taxilli Herba from
M. alba
had no hepatotoxicity to zebrafish, while that from
T.
trichocarpum
,
C. oleifera
,
S. babylonica
,
M. azedarach
, and
N. indicum
showed varying degrees of hepatotoxicity to zebrafish.
Conclusion
2
The toxicity of Taxilli Herba is host-dependent. Taxilli Herba from
M. alba
has no hepatotoxicity, but that from the other five hosts shows varying degrees of hepatotoxicity. Standardizing the host source may be an important measure to realize the medication safety of Taxilli Herba.
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Related Author
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ZHU Zixuan
SONG Yuan
DENG Qian
DAI Shengyun
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LI Jiaqi
Related Institution
Beijing Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine
National Institute for Food and Drug Control
School of Clinical Medicine, Nanjing University
School of Acupuncture-Moxibustion and Tuina,Beijing University of Chinese Medicine
Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medical/Traditional Chinese Medicine(TCM) Processing Technology Inheritance Base of National Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine