Insulin Resistance in PCOS Patients Enhances Oxidative Stress and Leukocyte Adhesion: Role of Myeloperoxidase
- PMID: 27007571
- PMCID: PMC4805297
- DOI: 10.1371/journal.pone.0151960
Insulin Resistance in PCOS Patients Enhances Oxidative Stress and Leukocyte Adhesion: Role of Myeloperoxidase
Abstract
Cardiovascular diseases and oxidative stress are related to polycystic ovary syndrome (PCOS) and insulin resistance (IR). We have evaluated the relationship between myeloperoxidase (MPO) and leukocyte activation in PCOS patients according to homeostatic model assessment of IR (HOMA-IR), and have explored a possible correlation between these factors and endocrine and inflammatory parameters. This was a prospective controlled study conducted in an academic medical center. The study population consisted of 101 PCOS subjects and 105 control subjects. We divided PCOS subjects into PCOS non-IR (HOMA-IR<2.5) and PCOS IR (HOMA-IR>2.5). Metabolic and anthropometric parameters, total and mitochondrial reactive oxygen species (ROS) production, MPO levels, interactions between human umbilical vein endothelial cells and leukocytes, adhesion molecules (E-selectin, ICAM-1 and VCAM-1) and proinflammatory cytokines (IL-6 and TNF-α) were evaluated. Oxidative stress was observed in PCOS patients, in whom there was an increase in total and mitochondrial ROS production and MPO levels. Enhanced rolling flux and adhesion, and a decrease in polymorphonuclear cell rolling velocity were also detected in PCOS subjects. Increases in IL-6 and TNF-α and adhesion molecules (E-selectin, ICAM-1 and VCAM-1) were also observed, particularly in the PCOS IR group, providing evidence that inflammation and oxidative stress are related in PCOS patients. HOMA-IR was positively correlated with hsCRP (p<0.001, r = 0.304), ROS production (p<0.01, r = 0.593), leukocyte rolling flux (p<0.05, r = 0.446), E-selectin (p<0.01, r = 0.436) and IL-6 (p<0.001, r = 0.443). The results show an increase in the rate of ROS and MPO levels in PCOS patients in general, and particularly in those with IR. Inflammation in PCOS induces leukocyte-endothelium interactions and a simultaneous increase in IL-6, TNF-α, E-selectin, ICAM-1 and VCAM-1. These conditions are aggravated by the presence of IR.
Conflict of interest statement
Figures
Similar articles
-
Metabolic syndrome enhances endoplasmic reticulum, oxidative stress and leukocyte-endothelium interactions in PCOS.Metabolism. 2017 Jun;71:153-162. doi: 10.1016/j.metabol.2017.02.012. Epub 2017 Feb 27. Metabolism. 2017. PMID: 28521868
-
Induction of oxidative stress and human leukocyte/endothelial cell interactions in polycystic ovary syndrome patients with insulin resistance.J Clin Endocrinol Metab. 2011 Oct;96(10):3115-22. doi: 10.1210/jc.2011-0651. Epub 2011 Jul 21. J Clin Endocrinol Metab. 2011. PMID: 21778215
-
Metformin modulates human leukocyte/endothelial cell interactions and proinflammatory cytokines in polycystic ovary syndrome patients.Atherosclerosis. 2015 Sep;242(1):167-73. doi: 10.1016/j.atherosclerosis.2015.07.017. Epub 2015 Jul 10. Atherosclerosis. 2015. PMID: 26188541 Clinical Trial.
-
Oxidative stress and cardiovascular complications in polycystic ovarian syndrome.Eur J Obstet Gynecol Reprod Biol. 2015 Aug;191:15-22. doi: 10.1016/j.ejogrb.2015.05.005. Epub 2015 Jun 2. Eur J Obstet Gynecol Reprod Biol. 2015. PMID: 26066290 Review.
-
Mitochondrial dysfunction: An emerging link in the pathophysiology of polycystic ovary syndrome.Mitochondrion. 2020 May;52:24-39. doi: 10.1016/j.mito.2020.02.006. Epub 2020 Feb 17. Mitochondrion. 2020. PMID: 32081727 Review.
Cited by
-
Hyperandrogenism and Cardiometabolic Risk in Pre- and Postmenopausal Women-What Is the Evidence?J Clin Endocrinol Metab. 2024 Apr 19;109(5):1202-1213. doi: 10.1210/clinem/dgad590. J Clin Endocrinol Metab. 2024. PMID: 37886900 Free PMC article. Review.
-
Salivary Alterations of Myeloperoxidase in Patients with Systemic Diseases: A Systematic Review.Int J Mol Sci. 2023 Jul 28;24(15):12078. doi: 10.3390/ijms241512078. Int J Mol Sci. 2023. PMID: 37569455 Free PMC article. Review.
-
The Effects of Plant-Derived Phytochemical Compounds and Phytochemical-Rich Diets on Females with Polycystic Ovarian Syndrome: A Scoping Review of Clinical Trials.Int J Environ Res Public Health. 2023 Aug 6;20(15):6534. doi: 10.3390/ijerph20156534. Int J Environ Res Public Health. 2023. PMID: 37569074 Free PMC article. Review.
-
Dysregulation of immune response in PCOS organ system.Front Immunol. 2023 May 5;14:1169232. doi: 10.3389/fimmu.2023.1169232. eCollection 2023. Front Immunol. 2023. PMID: 37215125 Free PMC article. Review.
-
Androgen-Induced Cardiovascular Risk in Polycystic Ovary Syndrome: The Role of T Lymphocytes.Life (Basel). 2023 Apr 14;13(4):1010. doi: 10.3390/life13041010. Life (Basel). 2023. PMID: 37109539 Free PMC article. Review.
References
-
- Diamanti-Kandarakis E, Kouli CR, Bergiele AT, Filandra FA, Tsianateli TC, Spina GG, et al. A survey of the polycystic ovary syndrome in the Greek island of Lesbos: hormonal and metabolic profile. J Clin Endocrinol Metab. 1999;84: 4006–4011. - PubMed
-
- Dunaif A. Insulin resistance and the polycystic ovary syndrome: mechanism and implications for pathogenesis. Endocr Rev. 1997;18: 774–800. - PubMed
-
- Ehrmann DA. Polycystic ovary syndrome. N Engl J Med. 2005;352: 1223–1236. - PubMed
Publication types
MeSH terms
Substances
Grants and funding
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical
Research Materials
Miscellaneous