Relevance of serum copper elevation induced by oral contraceptives : a meta-analysis (CROSBI ID 185895)
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Podaci o odgovornosti
Babić, Željka ; Tariba, Blanka ; Kovačić, Jelena ; Pizent, Alica ; Varnai, Veda Marija ; Macan, Jelena
engleski
Relevance of serum copper elevation induced by oral contraceptives : a meta-analysis
It is well documented that copper (Cu) blood levels are elevated in combination oral contraceptive (COC) users. The aim of this study was to establish the range of Cu increase in OC users compared to nonusers through a systematic literature overview and quantitative data analysis. Twenty-six articles were included in the meta-analysis. The increase in Cu level exponentially decreased in COC users over time, with a rapid decline through the 1960s and 1970s. After controlling for the publication year, use of COC increases the mean serum/plasma Cu level by 0.57 mg/L (95% confidence interval 0.49-0.66 mg/L). COCs commonly raise serum Cu to levels between 1.5 and 2 mg/L, which are above reference levels. Although these levels are not considered toxic, there are suggestions that such Cu increase could be implicated in oxidative pathophysiological processes in the body. Further research on safety of COCs use, including oxidative-stress-related effects, is warranted.
ceruloplasmin; copper; estrogen; oxidative stress; hepatic damage; atherosclerosis
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Podaci o izdanju
Povezanost rada
Kliničke medicinske znanosti, Javno zdravstvo i zdravstvena zaštita