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A Zebrafish Model of Diabetes Mellitus and Metabolic Memory
Published on: February 28, 2013
Adenosine kinase and cardiovascular fetal programming in gestational diabetes mellitus
Luis Silva1, Torsten Plösch2, Fernando Toledo3
1Cellular and Molecular Physiology Laboratory (CMPL), Department of Obstetrics, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen (UMCG), Groningen 9700 RB, the Netherlands.
Insights
Gestational diabetes mellitus (GDM) disrupts adenosine metabolism in the fetoplacental vasculature. This may cause fetal programming, leading to long-term cardio-metabolic risks in offspring.
Area of Science:
- Obstetrics and Gynecology
- Cardiovascular Research
- Developmental Biology
Background:
- Gestational diabetes mellitus (GDM) negatively impacts pregnancy, causing endothelial dysfunction and inflammation in fetoplacental vasculature.
- GDM is linked to altered adenosine metabolism, a key vasoactive molecule involved in cellular transmethylation reactions.
- Offspring of mothers with GDM exhibit increased long-term cardio-metabolic risks.
Purpose of the Study:
- To investigate the role of adenosine kinase in GDM-induced fetal programming.
- To explore the link between GDM, adenosine kinase dysregulation, and cardio-metabolic outcomes in offspring.
Main Methods:
- The study proposes a hypothesis based on existing literature regarding GDM, adenosine metabolism, and fetal programming.
- Mechanistic insights into adenosine kinase function and its regulation in the context of GDM are discussed.
Main Results:
- GDM is hypothesized to dysregulate adenosine kinase in the fetoplacental vasculature.
- This dysregulation may disrupt methylation-dependent gene expression, contributing to fetal programming.
- Altered adenosine kinase activity is proposed as a mechanism linking GDM exposure to long-term cardio-metabolic consequences in offspring.
Conclusions:
- Cellular and molecular changes in GDM can dysregulate adenosine kinase.
- Adenosine kinase dysregulation in the fetoplacental vasculature is a potential mechanism for GDM-induced fetal programming.
- This pathway may underlie the increased cardio-metabolic risk observed in offspring exposed to GDM.
Abstract:
Gestational diabetes mellitus (GDM) is a detrimental condition for human pregnancy associated with endothelial dysfunction and endothelial inflammation in the fetoplacental vasculature and leads to increased cardio-metabolic risk in the offspring. In the fetoplacental vasculature, GDM is associated with altered adenosine metabolism. Adenosine is an important vasoactive molecule and is an intermediary and final product of transmethylation reactions in the cell. Adenosine kinase is the major regulator of adenosine levels. Disruption of this enzyme is associated with alterations in methylation-dependent gene expression regulation mechanisms, which are associated with the fetal programming phenomenon. Here we propose that cellular and molecular alterations associated with GDM can dysregulate adenosine kinase leading to fetal programming in the fetoplacental vasculature. This can contribute to the cardio-metabolic long-term consequences observed in offspring after exposure to GDM.
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