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Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
Published on: May 10, 2022
Cardiotoxicity of parenterally administered iron complexes
L J Anghileri1, P Maincent, P Thouvenot
1Biophysics Laboratory, Medicine Faculty, University of Nancy, France.
Arzneimittel-Forschung
|June 1, 1995
Summary
Low molecular weight iron complexes may cause heart damage through cell calcium overload. This study used 45Ca(2+) uptake in mice to investigate iron-ATP complex cardiotoxicity, finding increased calcium uptake in heart tissue.
Area of Science:
- Biochemistry
- Toxicology
- Cardiovascular Research
Background:
- Low molecular weight iron complexes are used in various applications.
- Iron overload is a known factor in cellular damage.
- Cardiotoxicity mechanisms require further investigation.
Purpose of the Study:
- To investigate the role of cell calcium overload in the cardiotoxicity induced by low molecular weight iron complexes.
- To assess the impact of ferric lactate and ferric-ATP complexes on cardiac calcium uptake in vivo.
- To explore the influence of Adenosine Triphosphate (ATP) on iron complex-induced calcium homeostasis disruption.
Main Methods:
- Utilized 45Ca(2+) uptake assays in mice.
- Administered ferric lactate and ferric-ATP complexes via intraperitoneal injection.
- Quantified 45Ca(2+) accumulation in heart tissue.
Main Results:
- Significant increase in 45Ca(2+) uptake was observed in heart tissue after administration of iron complexes.
- Results support the hypothesis that iron complex cardiotoxicity is mediated by calcium overload.
- The presence of ATP in the iron complex appeared to influence its efficacy in altering cell calcium homeostasis.
Conclusions:
- Cell calcium overload is a likely mechanism contributing to the cardiotoxicity of low molecular weight iron complexes.
- Ferric-ATP complexes demonstrate potential as modulators of cellular calcium homeostasis.
- Further research into iron complex interactions with cellular calcium is warranted.
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