Study on the Chemical Composition and Blood-Entry Components of Nourishing Blood Diuretic Formula Based on Liquid Chromatography-Mass Spectrometry and Network Pharmacology Techniques

Objective: Analyzing the chemical composition and blood-entry components of Nourishing Blood Diuretic Formula (NBDF) by Liquid Chromatography-Mass Spectrometry (LC-MS), and analyzing the mechanism of NBDF in the treatment of chronic renal failure by combining network pharmacology and molecular docking technology. Methods: The prototype components were obtained by LC-MS, and the targets of the prototype components and the targets for the treatment of chronic renal failure (CRF) were predicted by network pharmacology to obtain the common targets of the drug and the disease, which were then subjected to gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses, and molecular docking was carried out between the compounds of the prototype components and the key targets, so as to screen out the active ingredients, the targets and the signaling pathways that were closely related to the efficacy of NBDF. Results: Synthesizing the test information, 125 compounds were identified from the solution of NBDF, and 48 blood-entry components were identified from rat plasma containing the drug, including 6 prototypical components, and 102 potential targets of action, 515 GO entries, and 133 KEGG pathways were obtained from the web-based pharmacological analyses, and molecular docking was performed to obtain the binding of the 6 prototypical component compounds and the 9 key targets, and the formononetin, emodin, epicatechin, chlorogenic acid, sennoside A, and astragaloside III were hypothesized to be the active components of NBDF in the treatment of CRF. Conclusion: This study initially demonstrated that Nourishing Blood and Diuretic Formula exert its therapeutic effects on CRF through multicomponents, multitargets, and multimethods, and elucidated its pharmacological material basis and therapeutic mechanism.