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Comparison of the short-chain fatty acids in normal rat faeces after the treatment of Euphorbia kansui , a traditional Chinese medicine for edoema

Authors
  • Jiang, Dongjing1, 2
  • Guo, Sijia2
  • Kang, An2
  • Ju, Yonghui2
  • Li, Jingxian2
  • Yu, Sheng2
  • Bao, Beihua2
  • Cao, Yudan2
  • Tang, Yuping3
  • Zhang, Li2
  • Yao, Weifeng2
  • 1 School of Pharmacy, Suzhou Vocational Health College, China , (China)
  • 2 Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, China , (China)
  • 3 Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, China , (China)
Type
Published Article
Journal
Pharmaceutical Biology
Publisher
Informa UK (Taylor & Francis)
Publication Date
Apr 30, 2020
Volume
58
Issue
1
Pages
367–373
Identifiers
DOI: 10.1080/13880209.2020.1755318
PMID: 32351153
PMCID: PMC7241507
Source
PubMed Central
Keywords
License
Green

Abstract

Context: As a toxic traditional Chinese medicine for edoema, Euphorbia kansui S.L. Liou ex S.B. Ho (Euphorbiaceae) (EK) stir-fried with vinegar for detoxification was associated with alterations of gut microbiota. However, the evidence of correlation between short-chain fatty acids (SCFAs) and toxicity of EK has not been confirmed. Objective: In order to study the biological basis of detoxification of EK stir-fried with vinegar (VEK), a rapid, sensitive and validated GC-MS method was developed to determine SCFAs in normal rat faeces after given EK and VEK. Materials and methods: Sprague Dawley rats were orally administered 0.5% CMC-Na (control group), EK (EK-treated group) and VEK powder (VEK-treated group) at 680 mg/kg for six consecutive days (eight rats each group). Fresh faeces samples were promptly collected, derivatized and then analyzed by GC-MS. Results: The ranges of LOD and LOQ were within 0.13–1.79 and 0.45–5.95 μg/mL, respectively. The RSD values of intra-day and inter-day precisions were less than 15%. Four SCFAs were generally stable under four storage conditions. The extraction recoveries were ranged from 53.5% to 97.3% with RSD values lower than 15%. The concentrations of four SCFAs in EK and VEK were decreased significantly compared with those not administered (EK-treated, p < 0.01; VEK-treated, p < 0.05 and p < 0.01). After being stir-fried with vinegar, the concentrations were all increased ( p < 0.05 and p < 0.01). Discussion and conclusions: The negative correlation between SCFAs and toxicity of EK may provide evidence for biological mechanism and toxic Chinese medicine.

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