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Updated: Sep 23, 2026

Ecotoxicological Methodologies to Evaluate Biomarkers at Different Scales in Neotropical Anurans
Published on: April 28, 2023
Pattern recognition methods in evaluation of the structure of the laboratory data biominerals, antioxidant enzymes,
Marek Stepniewski1, Emilia Kolarzyk, Pawel Zagrodzki
1Radioligand Laboratory of the Pharmacy Faculty, Collegium Medicum Jagiellonian University, 9 Medyczna str, 30-688 Kraków, Poland.
Abstract:
A wide set of biochemical and spirometrical parameters was applied to a group of 41 welders. The obtained parameters were analyzed by the pattern recognition method: principal-components analysis (PCA) and mutual contribution analysis (MCA). The aim of the investigation was to find out which of 23 parameters had an influence on the pulmonological indices of COPD. It was found that PCA gave a substantial reduction of dimensionality. The most relevant parameters were Fe, Zn, Cu (all elements in blood, not in hair), FEV1, MEF50, bilirubin, TAS, and SOD. Only the relationships of MEF50, Cu, and TAS were statistically valid.
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