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. 2021 Jun;108(6):798-807.
doi: 10.1007/s00223-020-00804-1. Epub 2021 Jan 13.

Iron Sucrose: A Double-Edged Sword in High Phosphate Media-Induced Vascular Calcification

Ping Wang #  1 , Chengkun Guo #  1 , Hui Pan  1 , Wangshan Chen  1 , Dan Peng  2
Affiliations

Iron Sucrose: A Double-Edged Sword in High Phosphate Media-Induced Vascular Calcification

Ping Wang et al. Calcif Tissue Int. 2021 Jun.

Abstract

The high incidence of vascular calcification (VC) in patients with chronic kidney disease (CKD) has become an important clinical subject. Hyperphosphatemia is a primary cause of CKD-related VC. Intravenous iron sucrose (IS) is commonly used to treat anemia in CKD patients, and is effective and well tolerated worldwide. However, the interaction between iron and VC remains controversial, and the underlying mechanisms are yet to be clarified. In the present study, ex vivo normal rat aortic rings were cultured with various concentrations of phosphate and IS, and the levels of calcium and iron depositions, oxidative injury, as well as phenotypic marker genes were detected. To the best of our knowledge, the present study is the first to report that IS is a double-edged sword in high phosphate media-induced VC which not only alleviates VC in a dose-dependent manner but also leads to iron overload in vasculature when in high concentration. IS is a promising agent for VC prevention in patients with hyperphosphatemia and iron deficiency. Meanwhile, the appropriate blood concentration of IS in patients with hyperphosphatemia needs to be explored clinically.

Keywords: Hyperphosphatemia; Iron sucrose; Oxidative injury; Type III sodium-dependent phosphate cotransporter-1; Vascular calcification.

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