Endometrial osteopontin mRNA expression and plasma osteopontin levels are increased in patients with endometriosis

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Osteopontin mRNA expression in eutopic endometrium and plasma levels were significantly elevated in women with endometriosis compared to controls.

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Abstract

PROBLEM: The aim of this study was to evaluate osteopontin (OPN) mRNA expression in eutopic endometrium and plasma OPN levels in patients with endometriosis. METHOD OF STUDY: A total of 79 patients with histologically confirmed endometriosis and 43 patients without endometriosis participated in this study. OPN mRNA expression in endometrial tissues was measured by real-time quantitative polymerase chain reaction (PCR) and plasma concentrations of OPN were quantified using a specific commercial sandwich enzyme-linked immunosorbent assays (ELISA). RESULTS: Osteopontin mRNA expression in endometrial tissue was significantly higher in women with endometriosis than in controls (P = 0.010). The mean plasma levels of OPN (mean +/- S.E.M.) in patients with endometriosis and controls were 407.31 +/- 37.80 ng/mL and 165.84 +/- 19.29 ng/mL, respectively (P < 0.001). Receiver operating characteristic (ROC) analysis for plasma OPN revealed an area under the curve (AUC) of 0.894, with a sensitivity of 93.0%, specificity of 72.4%, positive likelihood ratio of 3.37, and negative likelihood ratio of 0.1 using a cut-off value of 167.68 ng/mL. CONCLUSION: Osteopontin may be involved in the pathogenesis of endometriosis and plasma OPN may be a useful non-invasive marker for the diagnosis of endometriosis.

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Condition tags

endometriosis

MeSH descriptors

CA-125 Antigen Endometriosis Endometrium Osteopontin Adolescent Adolescent Adult Adult Biomarkers Biomarkers CA-125 Antigen CA-125 Antigen CA-125 Antigen Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometrium Endometrium

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References (32)

Cited by (45)

Source provenance

europepmc
last seen: 2026-10-20T06:13:28.455750+00:00
openalex
last seen: 2026-06-04T00:00:01.174412+00:00
pubmed
last seen: 2026-10-08T21:06:15.453410+00:00
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