Document Type

Journal Article

Department/Unit

School of Chinese Medicine

Title

Metabolic profiling reveals therapeutic biomarkers of processed Aconitum Carmichaeli Debx in treating hydrocortisone induced Kidney-Yang deficiency syndrome rats

Language

English

Abstract

Ethnopharmacological relevance Kidney-Yang Deficiency syndrome (KYDS) is a diagnostic pattern in traditional Chinese medicine (TCM) and clinical data showed that the unbalance in adrenal cortical hormone is the key issue in KYDS patients. The processed Ranunculaceae Aconitum carmichaeli debx (Bai-Fu-Pian in Chinese, BFP) is one of the most commonly used Chinese herbs for treating KYDS. The present study was conducted to explore the therapeutic biomarkers of the BFP in treating hydrocortisone administration induced KYDS rats. Materials and methods Thirty male Sprague-Dawley rats were randomly divided into five groups with six in each group. KYDS in rats was induced by i.p. injection of hydrocortisone at the dose of 10 mg/kg per day for 15 days as described previously. The rats with KYDS were administered orally, starting from the day of hydrocortisone administration stopped, with BFP extract at the dose of 0.32 g/kg, 0.64 g/kg and 1.28 g/kg per day respectively for 15 days. The blood samples were collected for the liquid chromatography quadruple time-of-flight mass spectrometry (LC-Q-TOF-MS) test, as well as radioimmunoassay to determine the concentrations of cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP) and adrenocorticotrophic hormone (ACTH). The metabolic responses to BFP administration were investigated by using the principal components analysis (PCA) and orthogonal partial least squares analysis (OPLS). Bioinformatics analyses were performed by using the Ingenuity Pathway Analysis (IPA). Variance analysis and linear regression analysis were used in this study. Results The signs and concentrations of cAMP, cGMP and ACTH in the model rats were similar to those previously described about KYDS rats and BFP treatment can reverse the changes. Seventeen significantly changed metabolites among different groups were identified. Thirteen metabolites were identified in the KYDS rats comparing to healthy rats with nine up-regulated and four down-regulated. After BFP treatment at three dosages, five up-regulated metabolites including phosphate, betaine, (4-hydroxyphenyl) acetaldehyde, 5-hydroxyindol-3-acetic acid and 5'-phosphoribosyl-N-formylglycinamide were dose-dependently reversed. The network analysis with IPA showed that four canonical pathways including superpathway of methionine degradation, purine nucleotides De Novo biosynthesis II, tyrosine synthesis and serotonin receptor signaling involved the therapeutic mechanism of BFP in treating the KYDS rats. Conclusions Five therapeutic biomarkers (phosphate, betaine, (4-hydroxyphenyl) acetaldehyde, 5-hydroxyindol-3-acetic acid and 5'-phosphoribosyl-N- formylglycinamide) and two corresponding canonical pathways (amino acid metabolism and purine nucleotide metabolism) were identified to be involved in the therapeutic mechanism of BFP treating the KYDS.

Keywords

Kidney-Yang deficiency syndrome rats, Metabolic profiling, Processed Aconitum carmichaeli debx, Therapeutic biomarkers

Publication Date

3-2014

Source Publication Title

Journal of Ethnopharmacology

Volume

152

Issue

3

Start Page

585

End Page

593

Publisher

Elsevier

Peer Reviewed

1

Copyright

© 2014 Elsevier Ireland Ltd.

Funder

This study was supported by National Science Foundation of China (No.81273884) and Fundamental Research Funds for the Central public welfare research institutes in China (No. zz070823).

DOI

10.1016/j.jep.2014.02.011

Link to Publisher's Edition

http://dx.doi.org/10.1016/j.jep.2014.02.011

ISSN (print)

03788741

ISSN (electronic)

18727573

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