Oxymatrine ameliorates white matter injury by modulating gut microbiota after intracerebral hemorrhage in mice

Introduction

White matter injury (WMI) significantly affects neurobehavioral recovery in intracerebral hemorrhage (ICH) patients. Gut dysbiosis plays an important role in the pathogenesis of neurological disorders. Oxymatrine (OMT) has therapeutic effects on inflammation-mediated diseases. Whether OMT exerts therapeutic effects on WMI after ICH and the role of gut microbiota involved in this process is largely unknown.

Methods

Neurological deficits, WMI, gut microbial composition, intestinal barrier function, and systemic inflammation were investigated after ICH. Fecal microbiota transplantation (FMT) was performed to elucidate the role of gut microbiota in the pathogenesis of ICH.

Results

OMT promoted long-term neurological function recovery and ameliorated WMI in the peri-hematoma region and distal corticospinal tract (CST) region after ICH. ICH induced significant and persistent gut dysbiosis, which was obviously regulated by OMT. In addition, OMT alleviated intestinal barrier dysfunction and systemic inflammation. Correlation analysis revealed that gut microbiota alteration was significantly correlated with inflammation, intestinal barrier permeability, and neurological deficits after ICH. Moreover, OMT-induced gut microbiota alteration could confer protection against neurological deficits and intestinal barrier disruption.

Conclusions

Our study demonstrates that OMT ameliorates ICH-induced WMI and neurological deficits by modulating gut microbiota.     

苦参碱抗肿瘤作用研究进展

纵览苦参生物碱抗肿瘤活性的研究进展 ,近年研究发现苦参碱可抑制部分肿瘤细胞的增殖与转移 ,诱导肿瘤细胞的凋亡和分化 ,同时又具有免疫调节作用、升高白细胞活性。研究结果提示苦参碱有可能在抗肿瘤机制中发挥独特效用 ,为人类攻克肿瘤提供更加有益的思路和借鉴