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• W4386914055 abstract "Astragaloside IV (AS-IV) is the main active component of “Astragalus membranaceus (Fisch.) Bunge, a synonym of Astragalus propinquus Schischkin (Fabaceae)”, which demonstrated to be useful for the treatment of intracerebral hemorrhage (ICH). However, due to the low bioavailability and barrier permeability of AS-IV, the gut microbiota may be an important key regulator for AS-IV to work. To explore the influences of gut microbiota on the effects of AS-IV on ICH. Mice were randomly divided into five groups: sham, ICH, and AS-IV-treated groups (25 mg/kg, 50 mg/kg, and 100 mg/kg). Behavioral tests, brain histopathology, and immunohistochemistry analysis were used to evaluate the degree of brain injury. Western blot was employed to verify peri-hematoma inflammation. The plasma lipopolysaccharide (LPS) leakage, the fluorescein isothiocyanate-dextran permeability, the colonic histopathology, and immunohistochemistry were detected to evaluate the barrier function of intestinal mucosal. Moreover, 16S rDNA sequencing and metabolomic analysis was applied to screen differential bacteria and metabolites, respectively. The correlation analysis was adopted to determine the potential relationship between differential bacteria and critical metabolites or neurological deficits. AS-IV alleviated neurological deficits, neuronal injury and apoptosis, and blood-brain barrier disruption. This compound reduced tumor necrosis factor (TNF)-α expression, increased arginase (Arg)-1 and interleukin (IL)-33 levels around the hematoma. Next, 16S rRNA sequencing indicated that AS-IV altered the gut microbiota, and inhibited the production of conditional pathogenic bacteria. Metabolomic analysis demonstrated that AS-IV regulated the serum metabolic profiles, especially the aminoacid metabolism and peroxisome proliferator-activated receptor (PPAR) signaling pathway. Additionally, AS-IV mitigated intestinal barrier damage and LPS leakage. This study provides a new perspective on the use of AS-IV for the treatment of ICH. Among them, gut microbiota and its metabolites may be the key regulator of AS-IV in treating ICH." @default.
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• W4386914055 date "2023-12-01" @default.
• W4386914055 modified "2023-10-11" @default.
• W4386914055 title "The effects of astragaloside IV on gut microbiota and serum metabolism in a mice model of intracerebral hemorrhage." @default.
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• W4386914055 doi "https://doi.org/10.1016/j.phymed.2023.155086" @default.
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