Obesity is a major human health problem associated with various diseases, including cardiac injury and type 2 diabetes. Trapa japonica Flerov (TJF) has been used in traditional oriental medicine to treat diabetes. In ...Obesity is a major human health problem associated with various diseases, including cardiac injury and type 2 diabetes. Trapa japonica Flerov (TJF) has been used in traditional oriental medicine to treat diabetes. In this study, we evaluated the inhibitory effect of and the mechanism underlying the effect of TJF extract on adipogenesis in 3T3-L1 cells. The effects of TJF extract on cell viability were analyzed using a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay, and the anti-adipogenic effect was measured by oil red O staining. The expression of peroxisomal proliferator activated receptor (PPAR)γ, CCAAT/enhancer-binding protein-α (C/EBP)α, adenosine monophosphate-activated protein kinase (AMPK), acetyl-CoA carboxylase (ACC), adiponectin, and fatty acid binding protein (FABP)4 involved in adipogenesis was determined by western blot analysis. TJF extract effectively inhibited lipid accumulation and the expression of PPARγ and C/EBPα in 3T3-L1 cells. TJF also increased the phosphorylation of AMPK and ACC, and decreased the expression of adiponectin and FABP4. These results indicate that TJF extract exerts its anti-obesity effect through the downregulation of adipogenic transcription factors and adipogenic marker genes.展开更多
目的探讨慢性乙型肝炎患者外周血单个核细胞(PBMC)中转录因子ROG、GATA3和T-bet m RNA水平变化及意义。方法收集135例慢性乙型肝炎患者(轻度45例、中度42例、重度48例)和15例健康志愿者(正常对照组)的外周血,分离单个核细胞,提取总RNA,...目的探讨慢性乙型肝炎患者外周血单个核细胞(PBMC)中转录因子ROG、GATA3和T-bet m RNA水平变化及意义。方法收集135例慢性乙型肝炎患者(轻度45例、中度42例、重度48例)和15例健康志愿者(正常对照组)的外周血,分离单个核细胞,提取总RNA,用实时定量PCR的方法检测ROG、GATA3和T-bet m RNA水平。应用SPSS16.0软件进行统计分析。结果慢性乙型肝炎轻度、中度组和重度组患者外周血PBMCs中T-bet m RNA表达水平均明显高于健康对照组人群,组内比较差异均具有统计学意义(P<0.05)。慢性乙型肝炎重度组患者外周血PBMCs中ROG m RNA表达水平明显高于健康对照组人群、轻度组和中度组患者,差异均有统计学意义(P<0.05)。而轻度组、中度组患者和健康对照组比较差异均无统计学意义(P>0.05)。慢性乙型肝炎中度组和重度组患者外周血PBMCs中GATA3 m RNA表达水平明显高于健康对照组人群和轻度组患者,差异均具有统计学意义(P<0.05);而轻度组和健康对照、中度组患者和重度组比较差异均无统计学意义(P>0.05)。慢性乙型肝炎轻度、中度组和重度组患者T-bet/GATA3比值明显高于健康对照组人群,差异均具有统计学意义(P<0.05);但3组之间比较差异无统计学意义(P>0.05)。ROG表达水平与GATA3和T-bet/GATA3比值均无相关性(P>0.05)。结论 ROG、GATA3和T-bet在慢性乙型肝炎患者外周血PBMCs中表达水平上调,并参与疾病的发生和疾病进展。ROG在纠正和维持Th1/Th2的新平衡状态过程中起重要作用。展开更多
文摘Obesity is a major human health problem associated with various diseases, including cardiac injury and type 2 diabetes. Trapa japonica Flerov (TJF) has been used in traditional oriental medicine to treat diabetes. In this study, we evaluated the inhibitory effect of and the mechanism underlying the effect of TJF extract on adipogenesis in 3T3-L1 cells. The effects of TJF extract on cell viability were analyzed using a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay, and the anti-adipogenic effect was measured by oil red O staining. The expression of peroxisomal proliferator activated receptor (PPAR)γ, CCAAT/enhancer-binding protein-α (C/EBP)α, adenosine monophosphate-activated protein kinase (AMPK), acetyl-CoA carboxylase (ACC), adiponectin, and fatty acid binding protein (FABP)4 involved in adipogenesis was determined by western blot analysis. TJF extract effectively inhibited lipid accumulation and the expression of PPARγ and C/EBPα in 3T3-L1 cells. TJF also increased the phosphorylation of AMPK and ACC, and decreased the expression of adiponectin and FABP4. These results indicate that TJF extract exerts its anti-obesity effect through the downregulation of adipogenic transcription factors and adipogenic marker genes.
文摘目的探讨慢性乙型肝炎患者外周血单个核细胞(PBMC)中转录因子ROG、GATA3和T-bet m RNA水平变化及意义。方法收集135例慢性乙型肝炎患者(轻度45例、中度42例、重度48例)和15例健康志愿者(正常对照组)的外周血,分离单个核细胞,提取总RNA,用实时定量PCR的方法检测ROG、GATA3和T-bet m RNA水平。应用SPSS16.0软件进行统计分析。结果慢性乙型肝炎轻度、中度组和重度组患者外周血PBMCs中T-bet m RNA表达水平均明显高于健康对照组人群,组内比较差异均具有统计学意义(P<0.05)。慢性乙型肝炎重度组患者外周血PBMCs中ROG m RNA表达水平明显高于健康对照组人群、轻度组和中度组患者,差异均有统计学意义(P<0.05)。而轻度组、中度组患者和健康对照组比较差异均无统计学意义(P>0.05)。慢性乙型肝炎中度组和重度组患者外周血PBMCs中GATA3 m RNA表达水平明显高于健康对照组人群和轻度组患者,差异均具有统计学意义(P<0.05);而轻度组和健康对照、中度组患者和重度组比较差异均无统计学意义(P>0.05)。慢性乙型肝炎轻度、中度组和重度组患者T-bet/GATA3比值明显高于健康对照组人群,差异均具有统计学意义(P<0.05);但3组之间比较差异无统计学意义(P>0.05)。ROG表达水平与GATA3和T-bet/GATA3比值均无相关性(P>0.05)。结论 ROG、GATA3和T-bet在慢性乙型肝炎患者外周血PBMCs中表达水平上调,并参与疾病的发生和疾病进展。ROG在纠正和维持Th1/Th2的新平衡状态过程中起重要作用。
