Abstract
Fulminant hepatic failure (FHF) is still an intractable disease associated with serious metabolic disorder. Investigating the dynamic changes of serum metabolites during the development of FHF would facilitate revealing the pathogenesis and also promote its treatment. Therefore, this study characterized the dynamic metabonome of serum from FHF Pigs using ultra performance liquid chromatography–mass spectrometry. Based on multiple statistical analysis of the resulting dataset, three types of up-regulated and one type of down-regulated patterns were delineated. Each pattern demonstrated distinct trends at different stages during the whole process of FHF, implying the differential clinical significance of them. Specifically, aromatic amino acids (Pattern 1) and lysophosphatidylcholines (LPCs) (Pattern 4) might be good markers for evaluating the severity of FHF, while some conjugated bile acids, long chain acylcarnitines (Pattern 2) and Glycocholic acid (Pattern 3) could indicate liver injury in the early stage. Inspired from the PCA plot that the pathogenetic condition of FHF aggravated with sampling time, a linear discriminant analysis (LDA) model based on phenylalanine and LPC 18:1 were further constructed for evaluating the severity of FHF. The leave-one-out cross-validation accuracy of 91.67% for the training set and the prediction accuracy of 92.31% for the external validation set confirmed its excellent performance. In conclusion, findings obtained from the present study, including four types of Dynamic Patterns of serum metabolites during FHF development and an LDA model for evaluating the severity of FHF, will be of great help to the research and management of FHF in the future.
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Abbreviations
- AAA:
-
Aromatic amino acids
- AASLD:
-
The American Association for the Study of Liver Diseases
- ALT:
-
Aspartate aminotransferase
- BPI:
-
Base peak intensity
- CHO:
-
Cholesterol
- CV:
-
Coefficient of variation
- d-gal:
-
d-galactosamine
- FHF:
-
Fulminant hepatic failure
- GC–MS:
-
Gas chromatography–mass spectrometry
- GCDCA:
-
Chenodeoxycholic acid glycine conjugate
- GUDCA:
-
Glycoursodeoxycholic acid
- HPLC–MS:
-
High performance liquid chromatography–mass spectrometry
- LDA:
-
Linear discriminant analysis
- LOOCV:
-
Leave-one-out cross-validation
- LPCs:
-
Lysophosphatidylcholines
- MELD:
-
The model for end-stage liver disease
- PCA:
-
Principal components analysis
- PLS-DA:
-
Partial least squares discriminate analysis
- PTA:
-
Prothrombin time activity
- QC:
-
Quality control
- TB:
-
Total bilirubin
- TBA:
-
Total bile acids
- UPLC–MS:
-
Ultra performance liquid chromatography–mass spectrometry
- VIP:
-
Variable importance in the projection
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Acknowledgments
The work was financially supported by National High Technology Research and Development Program of China (863 Program, No. 2011AA020104), National S&T Major Project for Infectious Disease Control of China (No. 2008ZX10002-05), and Science Fund for Creative Research Groups of the National Natural Science Foundation of China (NO. 81121002).
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11306_2011_381_MOESM9_ESM.tif
MS/MS identification of linoleylcarnitine based on its retention time and the characteristic ion fragments (m/z = 85) of long-chain acylcarnitines (TIFF 354 kb)
11306_2011_381_MOESM10_ESM.tif
MS/MS identification of elaidic carnitine based on its retention time and the characteristic ion fragments (m/z = 85) of long-chain acylcarnitines (TIFF 316 kb)
11306_2011_381_MOESM14_ESM.tif
MS/MS identification of LPC 18:1 based on its retention time and the characteristic ion fragments (m/z = 184 and m/z = 104) of lysophosphatidylcholines (TIFF 376 kb)
11306_2011_381_MOESM15_ESM.tif
MS/MS identification of LPC 18:2 based on its retention time and the characteristic ion fragments (m/z = 184 and m/z = 104) of lysophosphatidylcholines (TIFF 338 kb)
11306_2011_381_MOESM16_ESM.tif
MS/MS identification of LPC 20:4 based on its retention time and the characteristic ion fragments (m/z = 184 and m/z = 104) of lysophosphatidylcholines (TIFF 401 kb)
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Zhou, P., Li, J., Shao, L. et al. Dynamic Patterns of serum metabolites in fulminant hepatic failure pigs. Metabolomics 8, 869–879 (2012). https://doi.org/10.1007/s11306-011-0381-5
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DOI: https://doi.org/10.1007/s11306-011-0381-5