Epidemiological studies have indicated that branched-chain amino acids(BCAAs)increased and gut microbiota disordered in type 2 diabetes mellitus(T2DM).This study aimed to investigate the mechanism of Lactiplantibacill...Epidemiological studies have indicated that branched-chain amino acids(BCAAs)increased and gut microbiota disordered in type 2 diabetes mellitus(T2DM).This study aimed to investigate the mechanism of Lactiplantibacillus plantarum strain 84-3(Lp84-3)combined with Staphylococcus aureus bacteriophage on ameliorating T2DM.Here we perform a case-control study and identify that Staphylococcus_phage was inversely correlated with fasting blood glucose(FBG).It revealed that Lp84-3 could inhibit the growth of S.aureus,and Lp84-3 contains BCAAs degradation enzymes in its genome.Furthermore,Lp84-3 alone or combined with S.aureus bacteriophage interventions can improve blood glucose,insulin resistance,triglycerides,interleukin-1β,tumor necrosis factor-α(TNF-α),BCAAs,and acetyllactate synthase(ALS)in db/db mice.Lp84-3 and S.aureus bacteriophage decreased S.aureus,Malacoplasma iowae,and Oscillibacter sp.,and increased some beneficial such as L.plantarum and Muribaculaceae bacterium.Transcriptomic analyses revealed that Lp84-3 and S.aureus bacteriophage activated the PI3K/AKT/GLUT4 signaling pathway and upregulated key genes of Il22,Hgf,Col6a1,Gh,Itga10,Fgf23,and Prl involved in glucose metabolism in hypothalamus.Collectively,Lp84-3 and S.aureus bacteriophage alleviate T2DM by modulating gut microbiota and enhancing glucose metabolism in hypothalamus,supporting its potential use as a promising functional compound microecological agent for alleviating T2DM.展开更多
目的:研究不同肌糖原状态下运动诱导肌源性白细胞介素6(Interukin-6,IL-6)表达及蛋白释放与葡萄糖转运体4(Glucose Transport 4,GLUT4)基因表达的关系。方法:通过特定的运动方案和饮食方案造成大鼠在运动前体内肌糖原含量不同,再观察定...目的:研究不同肌糖原状态下运动诱导肌源性白细胞介素6(Interukin-6,IL-6)表达及蛋白释放与葡萄糖转运体4(Glucose Transport 4,GLUT4)基因表达的关系。方法:通过特定的运动方案和饮食方案造成大鼠在运动前体内肌糖原含量不同,再观察定量负荷跑台运动后肌源性IL-6表达及释放与葡萄糖转运体GLUT4基因表达的变化规律。结果:血清IL-6浓度在运动30min后显著增加,运动120min后达到峰值,运动后逐渐降低;骨骼肌IL-6mRNA在运动120min后显著增加,运动后3-6h继续增加至峰值;骨骼肌GLUT4mRNA在运动时并未增加,而在运动后3h开始增加,运动后6h达到峰值。上述三个指标在低肌糖原组的增加与正常糖原组相比更加显著。结论:低肌糖原含量可以促进运动中IL-6的释放及运动后恢复期IL-6和GLUT4的基因表达;运动导致恢复期GLUT4基因表达的增加很有可能与肌源性IL-6的表达及IL-6的自分泌作用有关。展开更多
基金supported by research grants from the Guangdong Province Basic and Applied Basic Research Fund Project(2022A1515110447)Open Fund Project of the State Key Laboratory of Applied Microbiology in South China(SKLAM006-2022)+1 种基金74th batch of general funding from the China Postdoctoral Science Foundation(2023M740774)Guangdong Provincial People’s Hospital,Postdoctoral Research Launch Fund(BY012022017)。
文摘Epidemiological studies have indicated that branched-chain amino acids(BCAAs)increased and gut microbiota disordered in type 2 diabetes mellitus(T2DM).This study aimed to investigate the mechanism of Lactiplantibacillus plantarum strain 84-3(Lp84-3)combined with Staphylococcus aureus bacteriophage on ameliorating T2DM.Here we perform a case-control study and identify that Staphylococcus_phage was inversely correlated with fasting blood glucose(FBG).It revealed that Lp84-3 could inhibit the growth of S.aureus,and Lp84-3 contains BCAAs degradation enzymes in its genome.Furthermore,Lp84-3 alone or combined with S.aureus bacteriophage interventions can improve blood glucose,insulin resistance,triglycerides,interleukin-1β,tumor necrosis factor-α(TNF-α),BCAAs,and acetyllactate synthase(ALS)in db/db mice.Lp84-3 and S.aureus bacteriophage decreased S.aureus,Malacoplasma iowae,and Oscillibacter sp.,and increased some beneficial such as L.plantarum and Muribaculaceae bacterium.Transcriptomic analyses revealed that Lp84-3 and S.aureus bacteriophage activated the PI3K/AKT/GLUT4 signaling pathway and upregulated key genes of Il22,Hgf,Col6a1,Gh,Itga10,Fgf23,and Prl involved in glucose metabolism in hypothalamus.Collectively,Lp84-3 and S.aureus bacteriophage alleviate T2DM by modulating gut microbiota and enhancing glucose metabolism in hypothalamus,supporting its potential use as a promising functional compound microecological agent for alleviating T2DM.
文摘目的:研究不同肌糖原状态下运动诱导肌源性白细胞介素6(Interukin-6,IL-6)表达及蛋白释放与葡萄糖转运体4(Glucose Transport 4,GLUT4)基因表达的关系。方法:通过特定的运动方案和饮食方案造成大鼠在运动前体内肌糖原含量不同,再观察定量负荷跑台运动后肌源性IL-6表达及释放与葡萄糖转运体GLUT4基因表达的变化规律。结果:血清IL-6浓度在运动30min后显著增加,运动120min后达到峰值,运动后逐渐降低;骨骼肌IL-6mRNA在运动120min后显著增加,运动后3-6h继续增加至峰值;骨骼肌GLUT4mRNA在运动时并未增加,而在运动后3h开始增加,运动后6h达到峰值。上述三个指标在低肌糖原组的增加与正常糖原组相比更加显著。结论:低肌糖原含量可以促进运动中IL-6的释放及运动后恢复期IL-6和GLUT4的基因表达;运动导致恢复期GLUT4基因表达的增加很有可能与肌源性IL-6的表达及IL-6的自分泌作用有关。
