Testosterone plays an essential role in sexual differentiation of the male sheep brain. The ovine sexually dimorphic nucleus (oSDN), is 2 to 3 times larger in males than in females, and this sex difference is under the control of testosterone. The effect of testosterone on oSDN volume may result from...
The ovine sexually dimorphic nucleus (oSDN) is 2 times larger in rams than in ewes. Sexual
differentiation of the oSDN is produced by testosterone exposure during the critical period
occurring between gestational day (GD)60 and GD90 (term, 147 d). We tested the hypothesis
that testosterone acts through the androgen receptor...
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, Melissa Scheldrup,
MaryMeaker, Fred Stormshak, and Hernán J. Montilla
Department of Physiology and
The ovine sexually dimorphic nucleus (oSDN) is 2 times larger in rams than in ewes. Sexual
differentiation of the oSDN is produced by testosterone exposure during the critical period
occurring between gestational day (GD)60 and GD90 (term, 147 d). We tested the hypothesis
that testosterone acts through the androgen receptor...
The ovine sexually dimorphic nucleus (oSDN) is 2 times larger in rams than in ewes. Sexual differentiation of the oSDN is produced by testosterone exposure during the critical period occurring between gestational day (GD)60 and GD90 (term, 147 d). We tested the hypothesis that testosterone acts through the androgen receptor...
This item is a powerpoint presentation of an HHMI research project conducted during the summer of 2011 by Kyle Ireton, in partnership with Dr. Fredrick Stormshak. The objective of this study was to identify whether the myristoylated alanine-rich c kinase substrate (MARCKS) protein is phosphorylated in vivo, in response to...
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Dr. Fredrick Stormshak
MaryMeaker
Dr. Cecily Bishop
Dr. Nathan Lopez
Dr. Viola Manning
Dr. Caprice
Oxytocin was confirmed to have an impact of the PIP2 breakdown in ovine endometrial tissue. This experiment took two groups of ovariectomized ewes (n=5) and administered a shortened estrus cycle hormone regiment. It was found that, independent of the hormone treatments, especially P4, OT caused a small increase in the...
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. Fredrick Stormshak
Kevin Ahern
MaryMeaker
Acknowledgments:
Before I end this talk, I would like to thank
The steroid hormone estrogen plays a crucial role in regulating certain mammalian tissues, especially female reproductive systems. Estrogen effects physiological changes in the cell by altering transcription activity for certain target genes, as a consequence of interactions between estradiol-17β (E2) and its nuclear receptor (nER). This mechanism of cellular control...
The purpose of this descriptive research was twofold: 1) to
determine the expressed concerns, feelings, and needs of a selected
group of expectant fathers; and 2) to categorize those expressed
concerns, feelings, and needs into broad areas and to develop a
priority listing of those items as a basis for...
Pollination ecology may play an important role in the maintenance of selfing in populations of self-compatible hermaphroditic plants where both selfing and outcrossing occur (mixed mating). Behavior and abundance of pollinators can influence the two major modes of selfing; autogamy (selfing within a flower) and geitonogamy (selfing between flowers on...