Abstract
Thromboxane A2 (TXA2) is traditionally known for its role in inducing platelet aggregation, but our previous study has discovered its crucial involvement in hepatic glucolipid metabolism and adipose tissue inflammation. Ginkgolide B (GB), a naturally occurring terpene lactone, possesses various pharmacological functions through its antagonism of the platelet activating factor (PAF) receptor. However, the metabolic regulation mechanism link between the anti-obesity efficiency of GB and TXA2 has remained elusive. Therefore, this research aimed to explore the potential of GB in protecting against obesity by inhibiting TXA2 synthesis. The results showed that GB inhibited TXA2 biosynthesis which shares a similar action with eicosapentaenoic acid (EPA) and aspirin. GB treatment ameliorated hyperglycemia by decreasing gluconeogenesis. Additionally, GB supplementation relieved hepatic lipid deposition and dyslipidemia. Furthermore, GB intervention promoted macrophage M2 polarization, thus mitigating adipose tissue inflammation. In summary, our study provided evidence that GB alleviated glucolipid metabolism disorders and adipose tissue inflammation through the inhibition of the TXA2 pathway. These findings shed light on the mechanism underlying the anti-obesity efficacy of GB and lay foundations for the future use of GB as a functional dietary supplement to alleviate high-fat diet-induced obesity.
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