Santos ACND, Petto J, Diogo DP, Seixas CR, Souza LHD, Araújo WS, Ladeia AMT. Elevation of Oxidized Lipoprotein of Low Density in Users of Combined Oral Contraceptives.
Arq Bras Cardiol 2018;
111:764-770. [PMID:
30328945 PMCID:
PMC6263464 DOI:
10.5935/abc.20180194]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 07/02/2018] [Indexed: 01/22/2023] Open
Abstract
Background
The use of combined oral contraceptive (COC) has been related to changes in
glycemic, lipid metabolism, increased oxidative stress, and systemic blood
pressure, which could suggest a higher oxidation of low-density lipoprotein
cholesterol (LDL-cholesterol) in women on use of COC.
Objective
To test the hypothesis that there is a difference in the plasma values of
oxidized LDL among women who use and do not use COC, as well as to evaluate
the correlation between it and the lipid profile and high-sensitivity
C-reactive protein (hs-CRP).
Methods
Forty-two women with ages between 18 and 35 years old, who were eutrophic,
irregularly active, with triglycerides < 150 mg/dL, blood glucose <
100 mg/dL, and who used or did not use COC were selected. These women were
allocated in the COC group, formed by 21 women on COC use for at least 1
year; and a control group (CG), consisting of 21 women who had not used any
type of hormonal contraceptive for at least 1 year. A significance level of
5% was adopted for statistical analyses.
Results
It was observed that GCOC showed higher values of oxidized LDL than the CG,
respectively 384 mU/mL versus 283 mU/mL (p < 0.01). A positive
correlation between oxidized LDL and LDL-cholesterol (r = 0.3, p < 0.05),
with total cholesterol (r = 0.47, p < 0.01) and with triglycerides (r =
0.32, p < 0.03) was observed, and there was no correlation with the
hs-CRP. In the categorized analysis of oxidized LDL, 71.4% of GCOC women,
and 28.6% of the CG remained above the established cutoff point.
Conclusion
Women who use COC have higher plasma levels of oxidized LDL, and there is a
positive correlation between oxidized LDL and other lipid variables.
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