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Amniotic fluid metabolic fingerprinting indicated metabolites which may play a role in the pathogenesis of foetal Down syndrome — a preliminary report
, 1, 1, 12, 1, 3
Affiliations- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Poland
- Department of Gynecological Endocrinology and Adolescent Gynecology, Medical University of Bialystok, Poland
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Abstract
Objectives: Down syndrome is the most common human chromosomal aberration. It is commonly known that it is a genetic-
based disease, but still, pathomechanisms which lead to observed disorders have not been explained. The objective of this
study was to determine the metabolic fingerprinting of the amniotic fluid women carrying foetuses with Down syndrome (DS).
Material and methods: The study and control groups consisted of women who underwent routine amniocentesis between
the 15th and 18th week of gestation. After analysis of the karyotyping results, 13 women with foetal DS were chosen. For
the control group, 13 healthy patients with uncomplicated pregnancies who delivered healthy newborns at term was
selected. Amniotic fluid was analyzed using liquid chromatography combined with high resolution mass spectrometry.
Results: In the amniotic fluid of women with foetal DS compared to patients with healthy foetuses, we reported significant
differences in the level of four metabolites: methylhistidine, hexanoylcarnitine, diacetylspermine and p-cresol sulfate which
may be connected with improper development of nervous system and muscles. We detected bacterial metabolite, which
support the latest thesis about non-sterile intrauterine environment.
Conclusions: Based on our findings, we hypothesise that differences in the level of four metabolites in the amniotic fluid
may play role in the pathogenesis of DS. Defining their potential as biochemical pathogenic factors of DS requires further
investigation of the biological pathways involving in the foetal development.
Abstract
Objectives: Down syndrome is the most common human chromosomal aberration. It is commonly known that it is a genetic-
based disease, but still, pathomechanisms which lead to observed disorders have not been explained. The objective of this
study was to determine the metabolic fingerprinting of the amniotic fluid women carrying foetuses with Down syndrome (DS).
Material and methods: The study and control groups consisted of women who underwent routine amniocentesis between
the 15th and 18th week of gestation. After analysis of the karyotyping results, 13 women with foetal DS were chosen. For
the control group, 13 healthy patients with uncomplicated pregnancies who delivered healthy newborns at term was
selected. Amniotic fluid was analyzed using liquid chromatography combined with high resolution mass spectrometry.
Results: In the amniotic fluid of women with foetal DS compared to patients with healthy foetuses, we reported significant
differences in the level of four metabolites: methylhistidine, hexanoylcarnitine, diacetylspermine and p-cresol sulfate which
may be connected with improper development of nervous system and muscles. We detected bacterial metabolite, which
support the latest thesis about non-sterile intrauterine environment.
Conclusions: Based on our findings, we hypothesise that differences in the level of four metabolites in the amniotic fluid
may play role in the pathogenesis of DS. Defining their potential as biochemical pathogenic factors of DS requires further
investigation of the biological pathways involving in the foetal development.
Keywords
Down Syndrome; amniotic fluid; metabolomics
About this articleTitle
Amniotic fluid metabolic fingerprinting indicated metabolites which may play a role in the pathogenesis of foetal Down syndrome — a preliminary report
Journal
Issue
Article type
Research paper
Pages
188-194
Published online
2021-02-02
Page views
921
Article views/downloads
957
DOI
Pubmed
Bibliographic record
Ginekol Pol 2021;92(3):188-194.
Keywords
Down Syndrome
amniotic fluid
metabolomics
Authors
Ewa Parfieniuk
Karolina Pietrowska
Paulina Samczuk
Adam Kretowski
Michal Ciborowski
Monika Zbucka-Kretowska
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