Histochemical localization of specific estrogen and progesterone binding in human endometrium and endometriotic tissue

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Abstract

A histochemical method for the detection of steroid-binding sites in very small tissue specimens was evaluated. Competitive binding experiments proved the method to be sufficiently specific. When applied to endometrium and endometriotic tissue obtained simultaneously from the same patient, a distinct binding was found both in the epithelial structures and in the stroma. The binding pattern in endometriotic glands resembled that in the endometrium. The study seems thus to support the conclusion that endometriotic lesions contain specific binding sites for estrogen and progesterone and that their distribution seems to be similar to that found in the endometrium from the same patient.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Endometrium Estrogens Progesterone Adult Binding, Competitive Endometriosis Endometrium Estrogens Female Histocytochemistry Humans Middle Aged Progesterone

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Source provenance

europepmc
last seen: 2026-07-01T06:12:12.862213+00:00
openalex
last seen: 2026-06-04T00:00:01.174412+00:00
pubmed
last seen: 2026-05-13T22:09:55.985569+00:00
License: CC0 · commercial use OK