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Serum and pleural fluid selenium, copper, zinc, and magnesium levels in malignant and nonmalignant pleural diseases. 1996

F Tekşen, and D Mungan, and A Sayal, and Z Misurligil, and A Aydin, and L Gürbüz, and A Işimer, and Y S Demirel, and T Acican, and B Sin
Department of Pulmonary Medicine, University of Ankara, Turkey.

In the present study, selenium (Se), copper (Cu), zinc (Zn), and magnesium (Mg) levels in serum and pleural fluid from patients with malignant and nonmalignant pleural diseases were measured and compared with serum concentrations in healthy subjects. Serum/pleural fluid ratios were also calculated for each element. The purpose of this study was to evaluate the diagnostic value of trace metals, especially Se, in neoplastic and nonneoplastic pleural diseases. Serum Cu and Mg levels were significantly higher in both malignant and nonmalignant groups of patients when compared with control subjects (p < 0.05). However, serum levels of these elements did not show a significant difference between malignant and nonmalignant cases (p > 0.05). The serum/pleural fluid ratio of Zn was significantly lower in patients with malignant effusions than in benign conditions (p = 0.05). Serum and pleural fluid Se, Cu, Zn and Mg levels were not significantly different between the two groups (p > 0.05). Thus, Se, Cu, Zn, and Mg seem to have no diagnostic value for distinguishing malignant from nonmalignant effusions.

UI MeSH Term Description Entries
D008274 Magnesium A metallic element that has the atomic symbol Mg, atomic number 12, and atomic weight 24.31. It is important for the activity of many enzymes, especially those involved in OXIDATIVE PHOSPHORYLATION.
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010995 Pleural Diseases Diseases involving the PLEURA. Disease, Pleural,Diseases, Pleural,Pleural Disease
D010996 Pleural Effusion Presence of fluid in the pleural cavity resulting from excessive transudation or exudation from the pleural surfaces. It is a sign of disease and not a diagnosis in itself. Effusion, Pleural,Effusions, Pleural,Pleural Effusions
D003300 Copper A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55. Copper-63,Copper 63
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012643 Selenium An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE. Selenium-80,Selenium 80

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