In this paper, radiation decontamination effects of mycelium powder of sinensis with Co γ-rays and influ- 60 ence on its components were studied. The results showed that the irradiation was very effective in killing ...In this paper, radiation decontamination effects of mycelium powder of sinensis with Co γ-rays and influ- 60 ence on its components were studied. The results showed that the irradiation was very effective in killing bacteria and moulds in mycelium powder. The D10 value for bacteria and moulds were 5.51kGy and 5.72kGy respectively. The optimum dose for decontamination of mycelium powder was 8—9kGy. Irradiating the mycelium powder to 8—9kGy did not cause obvious changes in the content of fatty acid, protein, total polysaccharide, total free amino acid and major nutrient components of adenosine, mannitol, and nitrogen. The irradiated mycelium powder, lost respectively 8.4%—9.5% and 29.6%—33.3% vitamin C and E, but they are minor nutrient components. After radiation decontamination, the quality-guaranteed mycelium powder has extended shelf life.展开更多
通过体外培养小鼠巨噬细胞RAW264.7,脂多糖(LPS)诱导刺激,考察了不同浓度灵芝菌丝体冻干粉(FDPGLM)处理后细胞活力、NO和IL‐6水平、Toll样受体4(TLR4)和i NOS m RNA表达、IκBa和磷酸化核转录因子κB(NF‐κB)p65蛋白表达之间的差异。...通过体外培养小鼠巨噬细胞RAW264.7,脂多糖(LPS)诱导刺激,考察了不同浓度灵芝菌丝体冻干粉(FDPGLM)处理后细胞活力、NO和IL‐6水平、Toll样受体4(TLR4)和i NOS m RNA表达、IκBa和磷酸化核转录因子κB(NF‐κB)p65蛋白表达之间的差异。结果显示:相对于LPS诱导来说,FDPGLM能以剂量依赖的方式显著抑制LPS诱导引起的NO和IL‐6水平上升(P<0.01),显著下调TLR4 mRNA表达(P<0.01),并显著抑制IκBa蛋白降解和NF‐κB p65蛋白磷酸化(P<0.01),由此推测在LPS诱导的RAW264.7细胞中,FDPGLM可能经由TLR4/NF‐κB信号途径抑制促炎基因的激活并抑制促炎细胞因子比如IL‐6的分泌,提示FDPGLM在抗炎药理作用上的应用前景。展开更多
文摘In this paper, radiation decontamination effects of mycelium powder of sinensis with Co γ-rays and influ- 60 ence on its components were studied. The results showed that the irradiation was very effective in killing bacteria and moulds in mycelium powder. The D10 value for bacteria and moulds were 5.51kGy and 5.72kGy respectively. The optimum dose for decontamination of mycelium powder was 8—9kGy. Irradiating the mycelium powder to 8—9kGy did not cause obvious changes in the content of fatty acid, protein, total polysaccharide, total free amino acid and major nutrient components of adenosine, mannitol, and nitrogen. The irradiated mycelium powder, lost respectively 8.4%—9.5% and 29.6%—33.3% vitamin C and E, but they are minor nutrient components. After radiation decontamination, the quality-guaranteed mycelium powder has extended shelf life.
文摘通过体外培养小鼠巨噬细胞RAW264.7,脂多糖(LPS)诱导刺激,考察了不同浓度灵芝菌丝体冻干粉(FDPGLM)处理后细胞活力、NO和IL‐6水平、Toll样受体4(TLR4)和i NOS m RNA表达、IκBa和磷酸化核转录因子κB(NF‐κB)p65蛋白表达之间的差异。结果显示:相对于LPS诱导来说,FDPGLM能以剂量依赖的方式显著抑制LPS诱导引起的NO和IL‐6水平上升(P<0.01),显著下调TLR4 mRNA表达(P<0.01),并显著抑制IκBa蛋白降解和NF‐κB p65蛋白磷酸化(P<0.01),由此推测在LPS诱导的RAW264.7细胞中,FDPGLM可能经由TLR4/NF‐κB信号途径抑制促炎基因的激活并抑制促炎细胞因子比如IL‐6的分泌,提示FDPGLM在抗炎药理作用上的应用前景。