Untersuchungen zum östrogenabhängigen Remodelling sympathischer Nervenfasern bei Adenomyosis uteri
This study found that women with adenomyosis have significantly reduced sympathetic nerve fibers in the myometrium, with a shift in estrogen receptor expression favoring ERα.
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This dissertation investigated whether estrogen-dependent remodeling of uterine sympathetic nerve fibers is disrupted in adenomyosis by comparing immunohistochemical nerve fiber markers in uterine tissue from women with adenomyosis (n=42) versus controls without adenomyosis and endometriosis (n=19). Sympathetic fibers identified by PGP 9.5, S100, substance P, and tyrosine hydroxylase were analyzed, and estrogen receptor α and β expression in myometrial TH-positive nerves was assessed, with peritoneal fluid from participants further tested in an in vitro neuronal growth assay; the study also reports that adenomyosis lesions and endometrium were not innervated. The density of myometrial sympathetic nerve fibers was significantly reduced in adenomyosis and this reduction was independent of menstrual cycle, hormonal medication, gravidity, and parity, while the ERα/ERβ balance in TH-positive fibers showed a tendency to shift toward ERα. Peritoneal fluid from women with and without adenomyosis produced no differences in neuronal outgrowth. This paper is centrally about endometriosis and/or adenomyosis — it is centrally about adenomyosis and focuses on estrogen-dependent remodeling of uterine sympathetic nerve fibers.
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