Abstract
Background: In China, traditional Chinese medicine (TCM) has been used to treat type 2 diabetes mellitus (T2DM) for centuries.
Methods: To investigate how the TCM ShenQi (SQC) formulation differs from metformin, four rat groups, including control, model, T2DM rats treated using SQC (SQC group), and T2DM rats treated using metformin (Met group), were constructed. The differentially expressed genes (DEGs) between SQC and metformin groups were screened, and the co-expression modules of the DEGs were constructed based on the weighted correlation network analysis (WGCNA) method. The correlation between modules and metabolic pathways was also calculated. The potential gene targets of SQC were obtained via the TCM systems pharmacology analysis.
Results: A total of 962 DEGs between SQC and Met groups were screened, and these DEGs were significantly enriched in various functions, such as sensory perception of the chemical stimulus, NADH dehydrogenase (ubiquinone) activity, and positive regulation of the fatty acid metabolic process. In addition, seven co-expression modules were constructed after the redundancy-reduced process. Four of these modules involved specific activated or inhibited metabolic pathways. Moreover, 334 effective ingredients of SQC herbs were collected, and four genes (RNASE1 (ribonuclease A family member 1, pancreatic), ADRB1 (adrenoceptor beta 1), PPIF (peptidylprolyl isomerase F), and ALDH1B1 (aldehyde dehydrogenase 1 family member B1)) were identified as potential targets of SQC.
Conclusion: Comparing SQC with metformin to treat T2DM rats revealed several potential gene targets. These genes provide clues for elucidating the therapeutic mechanisms of SQC.
Graphical Abstract
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