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Investigating the metabolic fingerprint of term infants with normal and increased fetal growth

机译:调查患有正常和胎儿生长术语婴儿的代谢指纹

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摘要

An NMR metabolomic approach was employed to highlight the metabolic changes underlying prenatal disorders and determine metabolites that could serve as potential markers in relation to large for gestational age (LGA) newborns. In this holistic study, multivariate data analysis elicited information from the NMR spectra and probed to metabolic signatures of macrosomic fetuses. Moreover, metabolic trends that characterize LGA from mothers diagnosed with gestational diabetes mellitus (LGA-GDM), as well as LGA from mothers not diagnosed with GDM (LGA-NGDM) were framed. Results obtained from maternal and umbilical cord (UC) samples indicated that LGA fetuses present alterations especially in the aminoacid metabolism as compared to Appropriate for Gestational Age (AGA) cases. Clear discrimination of LGA-NGDM from LGA-GDM was achieved both in maternal and in UC samples' blood. The role of glutamine and alanine together with four essential (valine, leucine, isoleucine, threonine) aminoacids, as well as the role of glycerol and glucose is emphasized for the case of maternal LGA samples' differentiation. Glycine and histidine only contributed to the differentiation of UC samples, the former characterized the AGA cases, while the latter was ascribed to both LGA-GDM and LGA-NGDM cases. Interestingly, both UC and maternal LGA-GDM samples were characterized by increased levels of N-acetylglutamic and acetoacetic acids. The OPLS-DA models were validated with permutation testing and ROC curves. In conclusion, this study indicates that NMR metabolomics may enable the detection of metabolic changes associated with LGA prenatal disorders.
机译:使用NMR代谢物方法来突出产前疾病的代谢变化,并确定代谢物,其可以作为与胎龄(LGA)新生儿有关的潜在标志物的潜在标志物。在该整体研究中,多变量数据分析引发来自NMR光谱的信息,并探测到常胎儿的代谢签名。此外,从被诊断出妊娠糖尿病(LGA-GDM)的母亲(LGA-GDM)以及未被诊断出患有GDM(LGA-NGDM)的LGA的代谢趋势都被框架。从母体和脐带(UC)样品获得的结果表明,与适当对孕龄(AGA)病例相比,LGA胎儿尤其是氨基酸代谢的改变。在母体和UC样本的血液中均可在LGA-GDM中清除LGA-NGDM的判断。谷氨酰胺和丙氨酸的作用以及四种必需(缬氨酸,亮氨酸,异亮氨酸,苏氨酸)氨基酸,以及母体LGA样品分化的情况下,强调了甘油和葡萄糖的作用。甘氨酸和组氨酸仅导致UC样品的分化,前者表征了AGA病例,而后者归因于LGA-GDM和LGA-NGDM病例。有趣的是,UC和母体LGA-GDM样品的特征在于N-乙酰基谷物和乙酰乙酸水平增加。 OPLS-DA模型以排列测试和ROC曲线验证。总之,本研究表明,NMR代谢组学可以检测与LGA产前障碍相关的代谢变化。

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  • 来源
    《RSC Advances》 |2016年第83期|共10页
  • 作者单位

    Natl Hellen Res Fdn Inst Biol Med Chem &

    Biotechnol Athens Greece;

    Univ Athens Dept Neonatol Athens Greece;

    Natl Hellen Res Fdn Inst Biol Med Chem &

    Biotechnol Athens Greece;

    Natl Hellen Res Fdn Inst Biol Med Chem &

    Biotechnol Athens Greece;

    Univ Athens Dept Neonatol Athens Greece;

    Univ Athens Dept Neonatol Athens Greece;

    Univ Athens Dept Neonatol Athens Greece;

    Univ Athens Dept Neonatol Athens Greece;

    Natl Hellen Res Fdn Inst Biol Med Chem &

    Biotechnol Athens Greece;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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