Positron emission tomography for measurement of copper fluxes in live organisms.
Positron emission tomography for measurement of copper fluxes in live organisms.
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DOI:
10.1111/nyas.12383
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发表时间:
2014-05
影响因子:
5.2
通讯作者:
Peng F
中科院分区:
文献类型:
--
作者:
Peng F
Copper is an essential nutrient for the physiology of live organisms, but excessive copper can be harmful. Copper radioisotopes are used for measurement of copper fluxes in live organisms using a radioactivity assay of body fluids or whole-body positron emission tomography (PET). Hybrid positron emission tomography–computed tomography (PET/CT) is a versatile tool for real-time measurement of copper fluxes combining the high sensitivity and quantification capability of PET and the superior spatial resolution of CT for anatomic localization of radioactive tracer activity. Kinetic analysis of copper metabolism in the liver and other extra-hepatic tissues of Atp7b−/− knockout mice, a mouse model of Wilson’s disease, demonstrated the feasibility of measuring copper fluxes in live organisms with PET/CT using copper-64 chloride (64CuCl2) as a radioactive tracer (64CuCl2-PET/CT). 64CuCl2-PET/CT holds potential as a useful tool for diagnosis of inherited and acquired human copper metabolism disorders, and for monitoring the effects of copper-modulating therapy.
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