ArticleLa Radiologia medica2015
Tissue gadolinium deposition in hepatorenally impaired rats exposed to Gd-EOB-DTPA: evaluation with inductively coupled plasma mass spectrometry (ICP-MS).
Article in La Radiologia medica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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9 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeThis study was undertaken to quantify tissue gadolinium (Gd) deposition in hepatorenally impaired rats exposed to gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) by means of inductively coupled plasma mass spectrometry (ICP-MS) and to compare differences in Gd distribution among major organs as possible triggers for nephrogenic systemic fibrosis. MATERIALS AND
methodsFive hepatorenally impaired rats (5/6-nephrectomized, with carbon-tetrachloride-induced liver fibrosis) were injected with Gd-EOB-DTPA. Histological assessment was conducted and Gd content of the skin, liver, kidneys, lungs, heart, spleen, diaphragm, and femoral muscle was measured by inductively coupled plasma mass spectrometry (ICP-MS) at 7 days after last injection. In addition, five renally impaired rats were injected with Gd-EOB-DTPA and the degree of tissue Gd deposition was compared with that in the hepatorenally impaired rats.
resultsICP-MS analysis revealed significantly higher Gd deposition in the kidneys, spleen, and liver (p = 0.009-0.047) in the hepatorenally impaired group (42.6 ± 20.1, 17.2 ± 6.1, 8.4 ± 3.2 μg/g, respectively) than in the renally impaired group (17.2 ± 7.7, 5.4 ± 2.1, 2.8 ± 0.7 μg/g, respectively); no significant difference was found for other organs. In the hepatorenally impaired group, Gd was predominantly deposited in the kidneys, followed by the spleen, liver, lungs, skin, heart, diaphragm, and femoral muscle. Histopathological investigation revealed hepatic fibrosis in the hepatorenally impaired group.
conclusionsCompared with renally impaired rats, tissue Gd deposition in hepatorenally impaired rats exposed to Gd-EOB-DTPA was significantly increased in the kidneys, spleen, and liver, probably due to the impairment of the dual excretion pathways of the urinary and biliary systems.
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