Vitamin D binding protein in endometriosis

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This study investigated the role of vitamin D binding protein in endometriosis.

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Abstract

OBJECTIVE: Two-dimensional gel electrophoresis is a powerful method for identifying post-translationally modified molecules in biological fluids. We examined the presence and expression of vitamin D binding protein (DBP) in the peritoneal fluid (PF) and plasma (PL) of women with endometriosis. METHODS: PL and PF samples were obtained from 36 women with untreated mild endometriosis (revised classification of the American Fertility Society [rAFS] stage I-II), 52 women with untreated severe endometriosis (rAFS stage III-IV), 17 women with endometriosis treated with the oral contraceptive (OC), and 40 controls (infertility, n = 23; tubal sterilization, n = 12; pelvic pain, n = 5). PF and PL samples were analyzed by quantitative, high-resolution 2-dimensional gel electrophoresis. RESULTS: The expression of one DBP isoform (DBPE) in the PF of patients with untreated endometriosis was significantly lower than in the control group (P <.05). The levels of PF DBPE in patients with endometriosis using OC were significantly higher than in women with untreated endometriosis (P <.05). No significant difference was observed in PL DBPE expression between women with and without endometriosis, while it was significantly increased in patients with endometriosis using OC (P <.05). DBP expression was not correlated with the stage of endometriosis (rAFS classification) or the phase of the menstrual cycle. CONCLUSION: The decreased level of DBPE in the PF but not in PL of women with untreated endometriosis suggests that this molecule may be relevant in the pathogenesis of this disease.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Endometriosis Vitamin D-Binding Protein Adult Adult Ascitic Fluid Ascitic Fluid Ascitic Fluid Case-Control Studies Case-Control Studies Contraceptives, Oral Contraceptives, Oral Contraceptives, Oral Electrophoresis, Gel, Two-Dimensional Electrophoresis, Gel, Two-Dimensional Endometriosis Endometriosis Endometriosis Female Female

Citation neighborhood (2-hop)

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. Outer rings show 2-hop neighbours — papers reached through the immediate citers/citees. [ collapse to 1-hop ]

References (32)

Cited by (37)

Source provenance

europepmc
last seen: 2026-10-14T06:08:39.101224+00:00
openalex
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pubmed
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License: CC0 · commercial use OK