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Intracellular Hormone Receptors01:08

Intracellular Hormone Receptors

Lipid-soluble hormones diffuse across the plasma and nuclear membrane of target cells to bind to their specific intracellular receptors. These receptors act as transcription factors that regulate gene expression and protein synthesis in the target cell

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Imaging of Estrogen Receptor-α in Rat Pial Arterioles using a Digital Immunofluorescent Microscope
07:42

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Published on: November 29, 2011

Oestrogen receptors in the developing rat prostate.

M D M El-Shafei1, M E A Mostafa, T Mostafa

  • 1Department of Histology, Faculty of Medicine, Cairo University, Egypt.

Andrologia
|March 9, 2011
PubMed
Summary
This summary is machine-generated.

Estrogen receptors (ERs) are crucial for prostate development in rats, with levels decreasing significantly after puberty. This highlights estrogen

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Area of Science:

  • Reproductive biology
  • Endocrinology
  • Histology

Background:

  • The prostate gland's development and function are traditionally linked to androgens.
  • The role of estrogen in prostate development, particularly in the prepubertal period, requires further elucidation.

Purpose of the Study:

  • To describe the histological changes in the developing rat prostate.
  • To map the distribution of estrogen receptors (ERs) during prostate development.

Main Methods:

  • Studied male albino rats at five age points: 2 days, 1 week, 2 weeks, 4 weeks, and 6 weeks.
  • Utilized hematoxylin and eosin staining for histological examination.
  • Employed immunohistochemistry and quantitative immunohistochemistry to detect and quantify ERs protein expression in prostate tissues.

Main Results:

  • Estrogen receptor (ERs) protein levels showed a gradual decrease with increasing age in developing rat prostates.
  • A marked reduction in ERs protein was observed with the onset of puberty (around 2-4 weeks of age).
  • Histological examination revealed distinct developmental changes in prostate morphology across the studied age groups.

Conclusions:

  • Despite being an androgen-dependent gland, prostate development in the prepubertal period is significantly influenced by estrogen.
  • Estrogen receptors (ERs) play a critical role in early prostate morphogenesis and development before sexual maturation.
  • The findings suggest a complex interplay between androgens and estrogens in regulating prostate gland development.