Regulatory Effects of Estrogens on the Pituitary Content of Secretogranin II and Chromogranin A
| Autor: | Youssef Anouar, Dominique Aunis, Tanon Benie, Estelle Galindo, J. Duval, Mireille de Monti |
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| Rok vydání: | 2009 |
| Předmět: |
endocrine system
medicine.medical_specialty Pituitary gland Adult female biology Endocrine and Autonomic Systems medicine.drug_class Endocrinology Diabetes and Metabolism Chromogranin A Cellular and Molecular Neuroscience Endocrinology medicine.anatomical_structure Estrogen Internal medicine SECRETOGRANIN II biology.protein medicine Luteinizing hormone Intracellular Endocrine gland |
| Zdroj: | Journal of neuroendocrinology. 3(3) |
| ISSN: | 0953-8194 |
| Popis: | Modulation of pituitary content of secretogranin II and chromogranin A has been compared to that of luteinizing hormone (LH) in adult female rats following gonadectomy and subsequent estradiol therapy. Both proteins were quantified using two specific antisera, BS 487 and anti-CAP-14, respectively. Ovariectomy promoted an increase in the concentration of secretogranin II and chromogranin A, though to a lesser degree than that of LH. Moreover, intracellular processing of secretogranin II was significantly enhanced. Daily estradiol injection further increased pituitary secretogranin II and LH contents while that of chromogranin A was reduced to sham-operated control values. These data 1) demonstrate that both granins are differentially regulated through ovarian factors, and 2) confirm that regulation of secretogranin II production may be closely related to that of LH. |
| Databáze: | OpenAIRE |
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