Serum and peritoneal fluid levels of IGF I and II and insulinlike growth binding protein-3 in endometriosis

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This study found that serum and peritoneal fluid levels of IGF I, IGF II, and IGFBP 3 differ between endometriosis patients and controls, with higher serum IGF I correlating with late-stage endometriosis.

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Abstract

OBJECTIVE: To examine whether insulinlike growth factor I (IGF I), IGF II and IGF binding protein 3 (IGFBP 3) in serum and peritoneal fluid (PF) correlate with the presence and severity of endometriosis. STUDY DESIGN: Case-control study including 29 patients with endometriosis and 15 controls. The revised American Fertility Society classification stages of I and II were pooled as early-stage (n = 15), and stages III and IV were taken as late stage (n = 14). Simultaneous sampling of blood and PF was performed during laparoscopy, and IGF I, IGF II and IGFBP 3 levels were determined by immunoradiometric assay. RESULTS: The serum levels of all three proteins were higher than PF levels except for a reversed IGF I PF: serum ratio in the early stage. There were no significant differences in IGF II and IGFBP 3 levels among the groups. The mean serum IGF I levels of controls and early-stage patients were significantly lower than those in the late stage. Also, mean PF IGF I levels in controls were significantly lower than in the late stage. CONCLUSION: IGF I may be an important mediator in the development and/or maintenance of endometriosis or progression to late-stage disease.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Insulin-Like Growth Factor Binding Protein 3 Insulin-Like Growth Factor I Insulin-Like Growth Factor II Adult Adult Ascitic Fluid Ascitic Fluid Ascitic Fluid Case-Control Studies Case-Control Studies Disease Progression Disease Progression Endometriosis Endometriosis Endometriosis Female Female Humans Humans

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 ]

Cited by (29)

Source provenance

europepmc
last seen: 2026-10-17T06:09:56.316927+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-10-08T20:58:57.924351+00:00
License: CC0 · commercial use OK