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With increasing tumor incidence, anemia (categorized as a blood deficiency in traditional Chinese medicine) caused by chemotherapy has become a major side effect worldwide. Gei Herba, a traditional Miao nation herb, has a prominent effect on the treatment of blood deficiency (BD). However, its application is limited owing to little fundamental research. Therefore, a GC-MS metabolomic approach was used to study the protective effect of aqueous extract from Gei Herba (AEG) on BD mice and its putative mechanism. In this study, 32 male mice were divided into four groups: a control group, a BD model group, and two groups subjected to AEG treatment at a daily dose of 0.15 or 0.30 g kg -1 for 8 d. After AEG treatment, the HGB and HCT levels in the blood of BD mice were significantly increased, the activity of superoxide dismutase was increased, and the histomorphology of the liver was improved. Furthermore, compared with those in the model group, the levels of eight significant metabolites [phosphoric acid, glycine, l-proline, ribitol, ( Z , Z )-9,12-octadecadienoic acid, oleic acid, uridine and 4B2H-carbamic acid] in the liver were significantly changed by AEG. The findings of this study provide sound evidence regarding the protective effects of AEG in BD mice from both classical and metabolomic perspectives. The mechanisms of action of AEG could be related to regulation of linoleic acid metabolism and that of glycine, serine, and threonine metabolism.

Protective effects of aqueous extract from Gei Herba on blood-deficiency mice: insights gained by a metabolomic approach