Persistent Vaginal Cornification in Mice Treated with Estrogen Prenatally

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概要

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• Twelve of 14 female mice of the ICR strain which had received a single injection of 50μg estradiol-17β on day 17 of fetal life exhibited irreversible cornification or stratification of the vaginal epithelium which persisted after ovariectomy until sacrifice performed 42-48 days later. Eight of the 12 mice had corpora lutea in their ovaries removed at 3-5 months of age. A similar injection of estradiol on day 15 of fetal life induced irreversible cornification or stratification of the vaginal epithelium in 6 of 12 females and only one of the 6 had corpora lutea in its ovaries when removed at 3-5 months. Mice given the same dose of estradiol on the day of birth or at 3 days of postnatal age invariably had ovaries bearing follicles of varying sizes and hypertrophied interstitial tissue but no corpora lutea. Changes in the vaginal epithelium in these animals were less remarkable as compared to that in prenatally treated mice.

• 社団法人 日本内分泌学会の論文

著者

• Kimura Takeji

  Department of Chemical & Biological Sciences, Japan Women's University

• KIMURA TAKEJI

  Department of Biology, College of General Education, University of Tokyo

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