Identification of novel bioactive constituents from traditional decoction of jiao-tai-Wan based on "co-decoction reaction" and comparative analysis with formula granules
Abstract
OBJECTIVE: The therapeutic equivalence between formula granules and traditional co-decoction remains a major clinical controversy. This study aims to investigate the scientific basis for the equivalence between formula granules and herbal piece decoctions using Jiao-Tai-Wan in the diabetic mouse model.
METHODS: This study employs Jiao-Tai-Wan using db/db diabetic mice as a disease model to investigate the scientific basis of equivalence between formula granules and herbal piece decoctions through multidimensional approaches. Using UPLC-QE- Orbitrap-MS, novel compounds generated during co-decoction were identified. Then, the hypoglycemic effects of formula granules, mixed individual decoctions, and combined decoction were systematically compared in db/db mice, complemented by 16S rRNA sequencing of gut microbiota and molecular docking of bioactive compounds with taste receptors.
RESULTS: Twenty-nine new co-decoction-related compounds were detected. All Jiao-Tai-Wan groups exhibited a more pronounced reduction in fasting blood glucose compared to the metformin group(p mixed decoction > formula granules. Each preparation distinctly modulated gut microbiota. Strong binding (≤ -5.0 kcal/mol) was confirmed between main constituents (e.g., berberine, cinnamic acid) and receptors (TAS2R46, TRPV1).
CONCLUSIONS: This study identified novel compounds generated during the co- decoction of Jiao-Tai-Wan through UPLC-QE-Orbitrap-MS. Using a multi- dimensional approach encompassing efficacy…
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