RESUMO
Objective:The effect of processing on promoting digestion of Crataegi Fructus was investigated by the method of serum metabonomics based on 1H-NMR and the analysis of traditional biochemical indexes. Method:The dyspepsia model was induced by high protein and calorie diet. The small intestine propulsive rate in mice and the hormone level in rat gastrointestinal tract were used as pharmacodynamic indexes. After administration of Crataegi Fructus, fried and charred Crataegi Fructus, the changes of serum metabolites were analyzed by 1H-NMR technique combined with multivariate statistical analysis, so as to compare the therapeutic effects of each processed products on rats with dyspepsia model. Result:Each processed products group of Crataegi Fructus could improve the ability of intestinal propulsion and gastric emptying, especially in charred Crataegi Fructus group, caused by dyspepsia. The serum metabonomics proved that there were significant metabolic differences between the model group and the blank group. A total of 13 biomarkers related to dyspepsia, covering 3-hydroxybutyric acid, glycerophosphoryl choline (GPC), N-acetylglycoprotein, O-acetylglycoprotein, trimethylamine oxide (TMAO), alanine, acetic acid, glutamic acid, glutamine, creatine, leucine, lactic acid and glucose, were screened on the grounds of VIP value of S-plot, single factor ANOVA and area under receiver operating characteristic curve (ROC curve) (AUC). The metabolite composition of each administration group was the same except that the callback tendency of O-acetylglycoprotein, glutamine and GPC in charred Crataegi Fructus group was closer to that in the blank group. Conclusion:There are differences in the effect of promoting digestion to eliminate stagnation among processed products of Crataegi Fructus, charred Crataegi Fructus is more effective in improving dyspepsia, which may play a role in regulating gastrointestinal motility and energy metabolism.