目的探讨KL-6、FGF-10因子在早产儿中表达及其潮气呼吸肺功能特点。方法根据胎龄将60例新生儿分为3组:<34周组、34~36+6周组及37~40周足月儿作为对照组,生后5~7 d ELSIA试剂盒测定各组KL-6、FGF-10因子的表达水平,同时测定各组潮气...目的探讨KL-6、FGF-10因子在早产儿中表达及其潮气呼吸肺功能特点。方法根据胎龄将60例新生儿分为3组:<34周组、34~36+6周组及37~40周足月儿作为对照组,生后5~7 d ELSIA试剂盒测定各组KL-6、FGF-10因子的表达水平,同时测定各组潮气呼吸肺功能。结果生后5~7 d时KL-6显示早产儿组高于对照组,而FGF-10低于对照组,差异有统计学意义(P<0.05)。潮气呼吸功能测定提示早产儿组的吸气时间(TI)、达峰时间(TPEF)、达峰时间比(TPEF/TE)明显低于对照组,差异有统计学意义(P<0.05)。纠正胎龄40周时,两个早产儿组的TPEF、TPEF/TE仍明显低于对照组,差异有统计学意义(P<0.05)。结论早产儿胎龄越小血浆中KL-6测定值越高,而FGF-10测定值越低,潮气呼吸肺功能受损越明显,提示血浆KL-6、FGF-10因子检测结合潮气呼吸功能测定可评估早产儿肺发育程度。展开更多
The human hair follicle, a mini-organ formed with neuroectodermal-meso-dermal interaction, is a complex structure, in the active steady state (anagen) the dermal papilla can be considered as a ball of extracellular ma...The human hair follicle, a mini-organ formed with neuroectodermal-meso-dermal interaction, is a complex structure, in the active steady state (anagen) the dermal papilla can be considered as a ball of extracellular matrix, surrounding specialized fibroblasts. The cross-talk of dermal papilla with neighbouring matrix cells results in the maintenance of hair fibre production. This study aimed to investigate the proliferative potential of the compound TrichotechTM, a phytocomplex obtained from a mixture of essential oils, on cultured human fibroblasts and its ability to modulate the gene expression of FGF-7 and FGF-10. TrichotechTM was shown to enhance fibroblasts proliferation in concentrations of 0.5% to 2.0%, and also increase the percentage of cells in the S/G2/M phases of the cell cycle. TrichotechTM at both 1.0% and 2.0% induced a statistically significant effect on wound healing assay compared to the untreated control. We examined the interaction between cell survival (PI3K/Akt) and mitogenic (Ras/MAPK) signal transduction pathways after TrichotechTM treatment (1.0% and 2.0%) on the fibroblast cell line. TrichotechTM caused phosphorylation of ERK1/2, as well as greater phosphorylation of MEK in comparison with both the untreated control and ERK1/2. PI3K and AKT, however, were not shown to be significantly more phosphorylated following TrichotechTM exposure. To verify the relative expression of mRNA for FGF-7 and FGF-10 genes, a real-time polymerase chain reaction (qPCR) protocol was used. Results show the increase in mRNA expression by fibroblasts after treatment with TrichotechTM. In both concentrations tested, TrichotechTM was found to increase the expression of FGF-7 and FGF-10. Sirius red staining allows for rapid assessment of collagen content, it showed a significant increase in collagen content in treated fibroblasts. Further investigation concerning TrichotechTM could be helpful towards the development of new bioactive phytocomplexes for dermatological and trichological use.展开更多
文摘目的探讨KL-6、FGF-10因子在早产儿中表达及其潮气呼吸肺功能特点。方法根据胎龄将60例新生儿分为3组:<34周组、34~36+6周组及37~40周足月儿作为对照组,生后5~7 d ELSIA试剂盒测定各组KL-6、FGF-10因子的表达水平,同时测定各组潮气呼吸肺功能。结果生后5~7 d时KL-6显示早产儿组高于对照组,而FGF-10低于对照组,差异有统计学意义(P<0.05)。潮气呼吸功能测定提示早产儿组的吸气时间(TI)、达峰时间(TPEF)、达峰时间比(TPEF/TE)明显低于对照组,差异有统计学意义(P<0.05)。纠正胎龄40周时,两个早产儿组的TPEF、TPEF/TE仍明显低于对照组,差异有统计学意义(P<0.05)。结论早产儿胎龄越小血浆中KL-6测定值越高,而FGF-10测定值越低,潮气呼吸肺功能受损越明显,提示血浆KL-6、FGF-10因子检测结合潮气呼吸功能测定可评估早产儿肺发育程度。
文摘The human hair follicle, a mini-organ formed with neuroectodermal-meso-dermal interaction, is a complex structure, in the active steady state (anagen) the dermal papilla can be considered as a ball of extracellular matrix, surrounding specialized fibroblasts. The cross-talk of dermal papilla with neighbouring matrix cells results in the maintenance of hair fibre production. This study aimed to investigate the proliferative potential of the compound TrichotechTM, a phytocomplex obtained from a mixture of essential oils, on cultured human fibroblasts and its ability to modulate the gene expression of FGF-7 and FGF-10. TrichotechTM was shown to enhance fibroblasts proliferation in concentrations of 0.5% to 2.0%, and also increase the percentage of cells in the S/G2/M phases of the cell cycle. TrichotechTM at both 1.0% and 2.0% induced a statistically significant effect on wound healing assay compared to the untreated control. We examined the interaction between cell survival (PI3K/Akt) and mitogenic (Ras/MAPK) signal transduction pathways after TrichotechTM treatment (1.0% and 2.0%) on the fibroblast cell line. TrichotechTM caused phosphorylation of ERK1/2, as well as greater phosphorylation of MEK in comparison with both the untreated control and ERK1/2. PI3K and AKT, however, were not shown to be significantly more phosphorylated following TrichotechTM exposure. To verify the relative expression of mRNA for FGF-7 and FGF-10 genes, a real-time polymerase chain reaction (qPCR) protocol was used. Results show the increase in mRNA expression by fibroblasts after treatment with TrichotechTM. In both concentrations tested, TrichotechTM was found to increase the expression of FGF-7 and FGF-10. Sirius red staining allows for rapid assessment of collagen content, it showed a significant increase in collagen content in treated fibroblasts. Further investigation concerning TrichotechTM could be helpful towards the development of new bioactive phytocomplexes for dermatological and trichological use.
