Objective To investigate changes in the urinary metabolite profiles of children exposed to polycyclic aromatic hydrocarbons(PAHs)during critical brain development and explore their potential link with the intestinal m...Objective To investigate changes in the urinary metabolite profiles of children exposed to polycyclic aromatic hydrocarbons(PAHs)during critical brain development and explore their potential link with the intestinal microbiota.Methods Liquid chromatography-tandem mass spectrometry was used to determine ten hydroxyl metabolites of PAHs(OH-PAHs)in 36-month-old children.Subsequently,37 children were categorized into low-and high-exposure groups based on the sum of the ten OH-PAHs.Ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry was used to identify non-targeted metabolites in the urine samples.Furthermore,fecal flora abundance was assessed by 16S rRNA gene sequencing using Illumina MiSeq.Results The concentrations of 21 metabolites were significantly higher in the high exposure group than in the low exposure group(variable importance for projection>1,P<0.05).Most of these metabolites were positively correlated with the hydroxyl metabolites of naphthalene,fluorine,and phenanthrene(r=0.336–0.531).The identified differential metabolites primarily belonged to pathways associated with inflammation or proinflammatory states,including amino acid,lipid,and nucleotide metabolism.Additionally,these distinct metabolites were significantly associated with specific intestinal flora abundances(r=0.34–0.55),which were mainly involved in neurodevelopment.Conclusion Higher PAH exposure in young children affected metabolic homeostasis,particularly that of certain gut microbiota-derived metabolites.Further investigation is needed to explore the potential influence of PAHs on the gut microbiota and their possible association with neurodevelopmental outcomes.展开更多
目的分析急性心肌梗死(AMI)患者发病后血浆尿路上皮癌相关1(UCA1)、肌酸激酶同工酶MB(CK-MB)、肌钙蛋白I(cTnI)变化及其诊断价值。方法选取2016年7月至2017年6月本院收治的80例AMI患者及30例健康志愿者为研究对象,分别纳入AMI组、对照组...目的分析急性心肌梗死(AMI)患者发病后血浆尿路上皮癌相关1(UCA1)、肌酸激酶同工酶MB(CK-MB)、肌钙蛋白I(cTnI)变化及其诊断价值。方法选取2016年7月至2017年6月本院收治的80例AMI患者及30例健康志愿者为研究对象,分别纳入AMI组、对照组,采用实时荧光定量聚合酶链反应法(qPCR)检测UCA1,比较两组入院后0~2、2~6、6~12、12~24、24~48、48~72、72~96 h血浆UCA1及CK-MB、cTnI水平,分析AMI组中合并不同基础疾病(高血压、糖尿病、高脂血症)患者UCA1、CK-MB、cTnI水平差异。结果与对照组比较,AMI组UCA1整体表达水平下调,且AMI组入院后0~48 h UCA1低于对照组(P<0.05),AMI组中UCA1在6~12 h降至最低(P<0.05),后升高(P<0.05),至入院后48~72 h、72~96 h与对照组比较差异无统计学意义(P>0.05);AMI组入院后2~48 h CK-MB、cTnI水平高于对照组(P<0.05),CK-MB在6~12 h达峰值,cTnI在12~24 h达峰值(P<0.05);AMI组中单纯AMI、合并高血压、合并糖尿病、合并高脂血症、合并2种及以上患者UCA1、CK-MB、cTnI表达水平分别两两比较差异无统计学意义(P>0.05);入院后6~12 h UCA1诊断AMI的灵敏度、特异度、准确度、ROC曲线下面积分别为85.42%、83.14%、86.11%、0.954,均较CK-MB、cTnI高。结论AMI患者发病后血浆UCA1表达水平可作为其潜在诊断标志物及治疗靶点,尤其在入院后6~12 h的UCA1有较高监测价值。展开更多
基金partly supported by grants from the National Natural Science Foundation of China(No:81372955)BiosTime Maternal and Infant Nutrition and Health Research Fund(2017FYH008)+1 种基金the Projects of Medical and Health Technology Development Program in Shandong Province(No:2016WS0309)Qingdao Outstanding Health Professional Development Fund(2020-2022,2022-2024)。
文摘Objective To investigate changes in the urinary metabolite profiles of children exposed to polycyclic aromatic hydrocarbons(PAHs)during critical brain development and explore their potential link with the intestinal microbiota.Methods Liquid chromatography-tandem mass spectrometry was used to determine ten hydroxyl metabolites of PAHs(OH-PAHs)in 36-month-old children.Subsequently,37 children were categorized into low-and high-exposure groups based on the sum of the ten OH-PAHs.Ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry was used to identify non-targeted metabolites in the urine samples.Furthermore,fecal flora abundance was assessed by 16S rRNA gene sequencing using Illumina MiSeq.Results The concentrations of 21 metabolites were significantly higher in the high exposure group than in the low exposure group(variable importance for projection>1,P<0.05).Most of these metabolites were positively correlated with the hydroxyl metabolites of naphthalene,fluorine,and phenanthrene(r=0.336–0.531).The identified differential metabolites primarily belonged to pathways associated with inflammation or proinflammatory states,including amino acid,lipid,and nucleotide metabolism.Additionally,these distinct metabolites were significantly associated with specific intestinal flora abundances(r=0.34–0.55),which were mainly involved in neurodevelopment.Conclusion Higher PAH exposure in young children affected metabolic homeostasis,particularly that of certain gut microbiota-derived metabolites.Further investigation is needed to explore the potential influence of PAHs on the gut microbiota and their possible association with neurodevelopmental outcomes.
文摘目的分析急性心肌梗死(AMI)患者发病后血浆尿路上皮癌相关1(UCA1)、肌酸激酶同工酶MB(CK-MB)、肌钙蛋白I(cTnI)变化及其诊断价值。方法选取2016年7月至2017年6月本院收治的80例AMI患者及30例健康志愿者为研究对象,分别纳入AMI组、对照组,采用实时荧光定量聚合酶链反应法(qPCR)检测UCA1,比较两组入院后0~2、2~6、6~12、12~24、24~48、48~72、72~96 h血浆UCA1及CK-MB、cTnI水平,分析AMI组中合并不同基础疾病(高血压、糖尿病、高脂血症)患者UCA1、CK-MB、cTnI水平差异。结果与对照组比较,AMI组UCA1整体表达水平下调,且AMI组入院后0~48 h UCA1低于对照组(P<0.05),AMI组中UCA1在6~12 h降至最低(P<0.05),后升高(P<0.05),至入院后48~72 h、72~96 h与对照组比较差异无统计学意义(P>0.05);AMI组入院后2~48 h CK-MB、cTnI水平高于对照组(P<0.05),CK-MB在6~12 h达峰值,cTnI在12~24 h达峰值(P<0.05);AMI组中单纯AMI、合并高血压、合并糖尿病、合并高脂血症、合并2种及以上患者UCA1、CK-MB、cTnI表达水平分别两两比较差异无统计学意义(P>0.05);入院后6~12 h UCA1诊断AMI的灵敏度、特异度、准确度、ROC曲线下面积分别为85.42%、83.14%、86.11%、0.954,均较CK-MB、cTnI高。结论AMI患者发病后血浆UCA1表达水平可作为其潜在诊断标志物及治疗靶点,尤其在入院后6~12 h的UCA1有较高监测价值。
