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J Magn Reson Imaging. 2009 Aug;30(2):374-83. doi: 10.1002/jmri.21845.

Evaluating the role of zinc in the occurrence of fibrosis of the skin: a preclinical study.

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Contrast Media Research, Bayer Schering Pharma AG, Berlin, Germany.



To investigate the possible role of Zn as a trigger for NSF we were using a previously established preclinical model. The depletion of endogenous Zinc ions (Zn) caused by the administration of gadolinium-based contrast agents (GBCAs) has been suggested as a possible pathomechanism for nephrogenic systemic fibrosis (NSF).


In the Zn supplementation study, rats were injected with Gadodiamide, Omniscan, and Magnevist with or without Zn supplementation. In the Zn depletion study, animals were kept on a Zn-deficient diet or a special control diet and received injections of Omniscan, OptiMARK, Magnevist, Gadovist, and Gd-EDTA. Gd, Zn, and Cu concentrations in tissue were measured and histology of the skin was performed.


As seen in earlier studies, a difference in Gd concentration in the skin was observed following treatment with the different GBCAs. High Gd concentration in the skin correlated with the occurrence of NSF-like skin lesions. We observed no differences in the occurrence of skin lesions between the Zn supplementation and the Zn-deficient groups compared to their respective control groups.


We found no significant effect of Zn on the initiation of NSF-like skin lesions. The results further support data from previous studies highlighting the importance of complex stability of the investigated GBCAs.

[Indexed for MEDLINE]

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