Age and stage dependency of estrogen receptor expression by lymphocyte precursors

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Age and stage dependency of estrogen receptor expression by lymphocyte precursors.

Sex steroids negatively regulate B lymphopoiesis in adult mice. Paradoxically, lymphocytes arise during fetal life, when estrogen levels are high and maternal lymphopoiesis is suppressed. Here we demonstrate that embryonic B lymphopoiesis was unaffected by estrogen, but sensitive to glucocorticoids. Both fetal and adult precursors contained glucocorticoid receptor transcripts, but only adult pr...

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Comparison of Estrogen Receptor and Progesterone Receptor in Ductal Carcinoma and Lobular Carcinoma With Regard to Age Prevalence

Background: Breast cancer is one of the most common women’s cancers, and the number of cases is increasing worldwide. Objective: The current study compared invasive lobular carcinoma (ILC) and invasive ductal carcinoma with regard to the prevalence of estrogen receptor (ER), progesterone receptor (PR), and age prevalence. Methods: T...

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Estrogen Receptor Beta Expression in Melanomas Versus Dysplastic Nevi

Dear Editor-in-ChiefMalignant melanoma is a tumor arising from melanocyte; this tumor rarely occurs before puberty, with higher mortality rate in males and better survival rate in female patients affected by metastatic melanoma (1, 2). These facts propose that a relationship and association may exist between estrogens and melanoma. The effects of estrogens are mediated by...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2001

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.011513098