TY - JOUR T1 -通气早产儿肠肺轴不相似和下气道生态失调JF -欧洲呼吸杂志JO - Eur Respir J DO - 10.1183/ 13993003.009 -2019 VL - 55 IS - 5 SP - 1901909 AU - Gallacher, David AU - Mitchell, Emma AU - Alber, Dagmar AU - Wach, Richard AU - Klein, Nigel AU - Marchesi, Julian R. AU - Kotecha,Sailesh Y1 - 20/05/01 UR - //www.qdcxjkg.com/content/55/5/1901909.abstract N2 -背景慢性早产儿肺病(CLD),也称为支气管肺发育不良,是早产的一个主要后果,但微生物组在其发展中的作用尚不清楚。因此,我们评估了通气早产儿上、下气道细菌群落随时间的发展,并通过比较上、下气道细菌群落与粪便结果来评估肠肺轴。最后,我们评估了细菌群落是否与肺部炎症相关,以提示生态失调。方法对通气早产儿的上呼吸道(鼻咽吸液)、下呼吸道(气管吸液和支气管肺泡灌洗液)、肠道(粪便)等多个解剖部位进行连续取样。检测所有样品中的细菌DNA载量,并使用16S rRNA基因的V3-V4区进行测序。结果55例早产儿1102份(鼻咽引液539份,气管引液276份,支气管肺泡灌洗液89份,粪便198份)样本中,352份(32%)扩增出适合16S RNA基因测序。细菌负荷在出生时较低,随着时间的推移迅速增加,但在所有样本类型中都与主要的操作分类单位(OTUs)有关。上、下气道和肠道之间的细菌群落存在差异,婴儿下气道中发生了单独的非生物性炎症过程。个体OTUs与炎症标志物增加相关。Conclusions Taken together, these findings suggest that targeted treatment of the predominant organisms, including those not routinely treated, such as Ureaplasma spp., may decrease the development of CLD in preterm-born infants.Respiratory colonisation was acquired after birth and associated with a pro-inflammatory response, suggesting an infectious process was present in babies at risk of developing chronic lung disease of prematurity (CLD), thus providing a target to reduce CLD http://bit.ly/31C27iX ER -