Summary
Serum copper and zinc concentrations and copper/zinc ratios have been shown to be increased in several types of human malignancies, including human brain tumors. In this study, copper and zinc levels and copper/zinc ratios were determined by atomic absorption analysis in tissue and serum from 29 primary and metastatic brain tumor patients. Metastatic carcinomas and malignant gliomas revealed significantly higher tissue copper concentrations than control tissues and meningiomas. Malignant gliomas demonstrated significantly higher tissue copper/zinc ratios. Both serum copper and copper/zinc ratio were significantly higher in the metastatic carcinoma group than control; however, serum copper levels in malignant glioma patients were not significantly different from control tissues. There were no differences both in the serum and the tissue concentrations of these trace elements in meningiomas and controls. These data suggested that copper, an important angiogenic factors, is accumulated within the malignant tissues of metastatic carcinoma and malignant glioma, but not meningiomas. These findings may have implications regarding angiogenesis in these tumors.
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Yoshida, D., Ikeda, Y. & Nakazawa, S. Quantitative analysis of copper, zinc and copper/zinc ratio in selected human brain tumors. J Neuro-Oncol 16, 109–115 (1993). https://doi.org/10.1007/BF01324697
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DOI: https://doi.org/10.1007/BF01324697