scholarly journals Transcriptional control of genes mediating ovarian follicular growth, differentiation, and steroidogenesis in pigs

2017 ◽  
Vol 84 (9) ◽  
pp. 788-801 ◽  
Author(s):  
Holly A. LaVoie
Keyword(s):  
Transcriptional Control ◽  
Follicular Growth ◽  
Ovarian Follicular Growth

scholarly journals The role of IGFs in the regulation of ovarian follicular growth in the brushtail possum (Trichosurus vulpecula)

Reproduction ◽  
2010 ◽  
Vol 140 (2) ◽  
pp. 295-303 ◽  
Author(s):  
Jennifer L Juengel ◽  
Lisa J Haydon ◽  
Brigitta Mester ◽  
Brian P Thomson ◽  
Michael Beaumont ◽  
...  
Keyword(s):  
Granulosa Cell ◽  
Granulosa Cells ◽  
Cell Function ◽  
Antral Follicle ◽  
Brushtail Possum ◽  
Follicular Growth ◽  
Theca Cells ◽  
Ovarian Follicular Growth

IGFs are known to be key regulators of ovarian follicular growth in eutherian mammals, but little is known regarding their role in marsupials. To better understand the potential role of IGFs in the regulation of follicular growth in marsupials, expression of mRNAs encoding IGF1, IGF2, IGF1R, IGF-binding protein 2 (IGFBP2), IGFBP4 and IGFBP5 was localized by in situ hybridization in developing ovarian follicles of the brushtail possum. In addition, the effects of IGF1 and IGF2 on granulosa cell function were tested in vitro. Both granulosa and theca cells synthesize IGF mRNAs, with the theca expressing IGF1 mRNA and granulosa cell expressing IGF2 mRNA. Oocytes and granulosa cells express IGF1R. Granulosa and theca cells expressed IGFBP mRNAs, although the pattern of expression differed between the BPs. IGFBP5 mRNA was differentially expressed as the follicles developed with granulosa cells of antral follicles no longer expressing IGFBP5 mRNA, suggesting an increased IGF bioavailability in the antral follicle. The IGFBP protease, PAPPA mRNA, was also expressed in granulosa cells of growing follicles. Both IGF1 and IGF2 stimulated thymidine incorporation but had no effect on progesterone production. Thus, IGF may be an important regulator of ovarian follicular development in marsupials as has been shown in eutherian mammals.

Gonadotrophins and Ovarian-Follicular Growth

1978 ◽  
Vol 5 (2) ◽  
pp. 363-373
Author(s):  
JOANNE S. RICHARDS ◽  
RIAZ FAROOKHI
Keyword(s):  
Follicular Growth ◽  
Ovarian Follicular Growth

scholarly journals Use of ultrasound biomicroscopy to evaluate induced ovarian follicular growth and ovulation in mice

2011 ◽  
Vol 45 (4) ◽  
pp. 254-258 ◽  
Author(s):  
Paulo H A Campos-Junior ◽  
Cristina A Silva ◽  
Joao G V Grazia ◽  
Milena B P Soares ◽  
Ricardo R Santos ◽  
...  
Keyword(s):  
Ultrasound Biomicroscopy ◽  
Follicular Growth ◽  
Ovarian Follicular Growth

Mast cell histamine and ovarian follicular growth in the lizardAnolis carolinensis

1975 ◽  
Vol 193 (3) ◽  
pp. 343-351 ◽  
Author(s):  
Richard E. Jones ◽  
Richard R. Tokarz ◽  
Jan J. Roth ◽  
James E. Platt ◽  
Allan C. Collins
Keyword(s):  
Mast Cell ◽  
Follicular Growth ◽  
Ovarian Follicular Growth

Ovarian follicular growth and FSH secretion following a timed injection of progesterone in cows

1996 ◽  
Vol 45 (1) ◽  
pp. 325 ◽  
Author(s):  
B.R. Lindsey ◽  
M.E. Wehrman ◽  
E.J. Melvin ◽  
J.A. Quintal ◽  
F.N. Kojima ◽  
...  
Keyword(s):  
Follicular Growth ◽  
Ovarian Follicular Growth
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