Abstract
Deficiency or excess of certain trace elements has been considered as risk factor for prostate cancer. This study was aimed to detect differential changes and mutual correlations of selected trace elements in prostate cancer tissue versus benign prostatic hyperplasia tissue. Zinc, copper, iron, calcium and selenium were analysed in histologically proven 15 prostate cancer tissues and 15 benign prostatic hyperplasia tissues using atomic absorption spectrophotometer. Unpaired two tailed t test/Mann–Whitney U test and Pearson correlation coefficient were used to compare the level of trace elements, elemental ratios and their interrelations. As compared to benign prostatic tissue, malignant prostatic tissue had significantly lower selenium (p = 0.038) and zinc (p = 0.043) concentrations, a lower zinc/iron ratio (p = 0.04) and positive correlation of selenium with zinc (r = 0.71, p = 0.02) and iron (r = 0.76, p = 0.009). Considerably divergent interrelationship of elements and elemental ratios in prostate cancer versus benign prostatic hyperplasia was noted. Understanding of differential elemental changes and their interdependence may be useful in defining the complex metabolic alterations in prostate carcinogenesis with potential for development of element based newer diagnostic, preventive and therapeutic strategies. Further studies may be needed to elucidate this complex relationship between trace elements and prostate carcinogenesis.
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Acknowledgments
Authors are thankful to King George’s Medical University, Lucknow, India for providing funding for this Intramural Research project.
Conflict of interest
Bhupendra Pal Singh, Shailendra Dwivedi, Urmila Dhakad, Ramesh Chandra Murthy, Vimal Kumar Choubey, Apul Goel and Satya Narayan Sankhwar declare that they have no conflict of interest.
Funding
This study was funded by Intramural Research Grant Fund from King George’s Medical University, Lucknow, India. (KGMU/Res.cell/Uro/10/Ref.Code: XLI ECM/B-P9).
Ethical standard
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Singh, B.P., Dwivedi, S., Dhakad, U. et al. Status and Interrelationship of Zinc, Copper, Iron, Calcium and Selenium in Prostate Cancer. Ind J Clin Biochem 31, 50–56 (2016). https://doi.org/10.1007/s12291-015-0497-x
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DOI: https://doi.org/10.1007/s12291-015-0497-x