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  • Title: [Immunohistochemical receptor findings in the endometrium and therapeutic consequences in endogenous and exogenous functional disorders and cancer].
    Author: Lang G, Lang M, Dallenbach-Hellweg G.
    Journal: Geburtshilfe Frauenheilkd; 1989 Dec; 49(12):1044-9. PubMed ID: 2612844.
    Abstract:
    We studied immunohistochemically cryostat sections made from fresh endometrial tissue, immediately frozen after removal (86 hysterectomy specimens, 6 curettages) for their content of oestrogen receptors (ER) using the ER-ICA assay. Routine histological sections were prepared from parallel specimens of the endometria for determining endometrial functions. The evaluation of the immunohistiological preparations showed that the ER content in the endometrium was closely related to the endogenous hormone stimulation. A further refinement and differentiation of that relationship became possible and correlated well with the various forms of follicle and corpus-luteum insufficiencies. The results indicated that it is now possible to recommend therapy of functional disorders of the endometrium, esp. in sterility cases, without need or knowledge of serum hormone levels. As the endometrial glandular proliferation increases, the density of the ER becomes more intense. In contrast, under therapy with predominantly gestagenic preparations or after these are discontinued, the ER are decreased more than found in normal glands at that degree of proliferation. Whereas the atrophic endometria of old age contained greatly diminished but still detectable ER, no ER could be found in endometrial atrophy induced by oral contraceptives. Carcinomatous endometria revealed a heterogeneous distribution of ER. The better the tumour cells were differentiated, the greater was the density of the ER. By contrast, the carcinomas derived from metaplastic Müllerian epithelium contained few or no ER. This difference is of practical importance, since an adjuvant anti-oestrogen therapy seems of value only with ER-positive carcinomas. The immunohistochemical determination of ER is more exact than the biochemical determination, for each single cell can be evaluated.(ABSTRACT TRUNCATED AT 250 WORDS)
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