scholarly journals Effects of hCG administration on corpus luteum development and plasma sex steroid hormone concentration in beef heifers differ according to the locational relationships of the original corpus luteum and the first-wave dominant follicle

2020 ◽  
Vol 82 (8) ◽  
pp. 1219-1225
Author(s):  
Ken HAZANO ◽  
Shingo HANEDA ◽  
Mitsunori KAYANO ◽  
Ryotaro MIURA ◽  
Motozumi MATSUI
Keyword(s):  
Corpus Luteum ◽  
Steroid Hormone ◽  
Sex Steroid ◽  
Hormone Concentration ◽  
Dominant Follicle ◽  
Beef Heifers ◽  
Sex Steroid Hormone

scholarly journals Racial variation in sex steroid hormone concentration in black and white men: a meta-analysis

Andrology ◽  
2014 ◽  
Vol 2 (3) ◽  
pp. 428-435 ◽  
Author(s):  
A. Richard ◽  
S. Rohrmann ◽  
L. Zhang ◽  
M. Eichholzer ◽  
S. Basaria ◽  
...  
Keyword(s):  
Steroid Hormone ◽  
Meta Analysis ◽  
White Men ◽  
Sex Steroid ◽  
Hormone Concentration ◽  
Racial Variation ◽  
Sex Steroid Hormone ◽  
Black And White

Pelvic floor sex steroid hormone receptors, distribution and expression in pre- and postmenopausal stress urinary incontinent women

2007 ◽  
Vol 86 (11) ◽  
pp. 1377-1384 ◽  
Author(s):  
Marie Westergren Söderberg ◽  
Bengt Johansson ◽  
Britt Masironi ◽  
Birgitta Byström ◽  
Christian Falconer ◽  
...  
Keyword(s):  
Pelvic Floor ◽  
Hormone Receptors ◽  
Steroid Hormone ◽  
Steroid Hormone Receptors ◽  
Sex Steroid ◽  
Sex Steroid Hormone

Immunolocalization of sex steroid hormone receptors in the canine uterine tube and their relation to sex steroid hormone levels

2002 ◽  
Vol 14 (4) ◽  
pp. 241 ◽  
Author(s):  
Hilde Vermeirsch ◽  
Wim Van Den Broeck ◽  
Mark Coryn ◽  
Paul Simoens
Keyword(s):  
Epithelial Cells ◽  
Estrous Cycle ◽  
Stromal Cells ◽  
Hormone Receptors ◽  
Steroid Hormone ◽  
Steroid Hormone Receptors ◽  
Sex Steroid ◽  
Nuclear Staining ◽  
Sex Steroid Hormone ◽  
Uterine Tube

The aim of this immunohistochemical study was to describe the cellular distribution of the estrogen receptor-α (ERα), progesterone receptor (PR) and androgen receptor (AR) in canine uterine tubes. Samples of uterine tubes were taken from dogs in different stages of the estrous cycle, and dogs that were pregnant or had just delivered. Nuclear staining for sex steroid hormone receptors was observed in the surface epithelium, stromal cells and smooth muscle cells of the muscular layer. Only slight differences in staining pattern were observed between the ampulla and fimbriae. The staining for ERα and PR showed changes throughout the estrous cycle. Some of these changes were related to changing concentrations of sex steroid hormones. High staining scores for ERα and PR were found during proestrus and low scores during early metestrus. The staining for AR showed only minor cyclic changes. However, during proestrus and estrus, cytoplasmic staining for AR was observed in differentiated secretory epithelial cells, when nuclear staining in these cells was nearly absent. For the three hormone receptors, stromal cells generally stained with a higher intensity than epithelial cells. It is likely that many steroid hormone actions on the epithelium are mediated through stromal cells. During pregnancy, rather high staining scores were found for ERα and AR in the uterine tube. This is in contrast to observations in the canine pregnant uterus.

scholarly journals Molecular Cloning, Characterization, and Chromosome Mapping of Reptilian Estrogen Receptors

Endocrinology ◽  
2010 ◽  
Vol 151 (12) ◽  
pp. 5710-5720 ◽  
Author(s):  
Yoshinao Katsu ◽  
Kazumi Matsubara ◽  
Satomi Kohno ◽  
Yoichi Matsuda ◽  
Michihisa Toriba ◽  
...  
Keyword(s):  
Estrogen Receptor ◽  
Hormone Receptor ◽  
Molecular Mechanisms ◽  
Steroid Hormone ◽  
Chromosome 1 ◽  
Sex Steroid ◽  
Steroid Hormone Receptor ◽  
Sex Steroid Hormone ◽  
Ligand Interactions ◽  
Rat Snake

In many vertebrates, steroid hormones are essential for ovarian differentiation during a critical developmental stage as well as promoting the growth and differentiation of the adult female reproductive system. Although studies have been extensively conducted in mammals and a few fish, amphibians, and bird species, the molecular mechanisms of sex steroid hormone (estrogens) action have been poorly examined in reptiles. Here, we evaluate hormone receptor and ligand interactions in two species of snake, the Okinawa habu (Protobothrops flavoviridis, Viperidae) and the Japanese four-striped rat snake (Elaphe quadrivirgata, Colubridae) after the isolation of cDNAs encoding estrogen receptor α (ESR1) and estrogen receptor β (ESR2). Using a transient transfection assay with mammalian cells, the transcriptional activity of reptilian (Okinawa habu, Japanese four-striped rat snake, American alligator, and Florida red-belly freshwater turtle) ESR1 and ESR2 was examined. All ESR proteins displayed estrogen-dependent activation of transcription via an estrogen-response element-containing promoter; however, the responsiveness to various estrogens was different. Further, we determined the chromosomal locations of the snake steroid hormone receptor genes. ESR1 and ESR2 genes were localized to the short and long arms of chromosome 1, respectively, whereas androgen receptor was localized to a pair of microchromosomes in the two snake species examined. These data provide basic tools that allow future studies examining receptor-ligand interactions and steroid endocrinology in snakes and also expands our knowledge of sex steroid hormone receptor evolution.

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