Results 261 to 270 of about 50,631 (303)

Activation of PPARG inhibits dominant follicle development in cattle

Theriogenology, 2020
The peroxisome proliferator-activated receptor gamma (PPARG, also called NR1C3) is a nuclear receptor of the peroxisome proliferator-activated receptor family (PPAR). PPARs are involved in the regulation of apoptosis, cell cycle, estradiol and progesterone synthesis, and metabolism.
Juliana G, Ferst, Monique T, Rovani, Andressa M P, Dau, Bernardo G, Gasperin, Alfredo Q, Antoniazzi, Vilceu, Bordignon, Dimas E, Oliveira, Paulo B D, Gonçalves, Rogério, Ferreira   +8 more
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Decremental follicle-stimulating hormone and dominant follicle development during the normal menstrual cycle

Fertility and Sterility, 1995
To study the relationship between decreasing serum FSH levels in the follicular phase of the normal menstrual cycle and follicle development by means of transvaginal sonography and E2 production.Daily blood samples were taken and transvaginal sonography was performed every other day in 16 normal regularly cycling female volunteers.Serum levels of FSH ...
E J, van Santbrink, W C, Hop, T J, van Dessel, F H, de Jong, B C, Fauser   +4 more
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The bovine dominant ovarian follicle

Journal of Animal Science, 2007
Central roles in reproductive biology (i.e., growth and development of the oocyte, steroidogenesis, and ovulation) are played by the ovarian dominant follicle (DF). The DF is different from other follicles because it can escape atresia (the fate of all other follicles), and if exposed to the LH surge, its cells will differentiate into the corpus luteum.
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Influence of the dominant follicle on oocytes from subordinate follicles

Theriogenology, 1999
As the oocyte grows within the follicle, a number of factors influence its health and developmental competence. These factors include follicle size, day of estrous cycle, level of atresia and influence of other follicles such as the dominant follicle. Follicles were dissected from ovaries of synchronized dairy cows on four days during the estrous cycle,
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The final stages of dominant follicle selection in cattle

Domestic Animal Endocrinology, 2002
The final stages of ovarian follicle growth in cattle are typically characterized by the ultrasound-detectable emergence of a cohort of small (3-5mm in diameter) antral follicles, followed by a selection process during which the number of follicles continuing to grow decreases.
M, Mihm, E J, Austin
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Granulosa cell pyknosis in the dominant follicle of monkeys

Fertility and Sterility, 1982
One of the primary morphologic criteria used as the first sign of degeneration of an antral follicle is the presence of a pyknotic nucleus in granulosa cells lining the lumen. This study was undertaken to determine whether granulosa cells with a pyknotic nucleus are also present in the putative dominant follicle. Dominance was verified by elevations of
M J, Koering, A L, Goodman, R F, Williams, G D, Hodgen   +3 more
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Switching of follicle destiny so that the second largest follicle becomes dominant in monovulatory species

Theriogenology, 2021
During an ovulatory follicular wave in the monovulatory species of heifers, mares, and women, the two largest follicles deviate in diameter at the end of a common follicle growth phase. The largest follicle before deviation becomes the future ovulatory follicle in most ovulatory waves.
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Follicle Deviation in Ovulatory Follicular Waves with One or Two Dominant Follicles in Mares

Reproduction in Domestic Animals, 2009
ContentsThe follicle and hormone aspects of diameter deviation and development of one dominant (≥28 mm) follicle (1DF) vs two dominant follicles (2DF) were studied in 32 ovulatory follicular waves in mares. Follicles were ranked each day as F1 (largest) to F3.
J C, Jacob, E L, Gastal, M O, Gastal, G R, Carvalho, M A, Beg, O J, Ginther   +5 more
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Follicle dominance and ovarian asymmetry after luteectomy in rhesus monkeys

American Journal of Physiology-Endocrinology and Metabolism, 1982
Previous work demonstrated that asymmetrical ovarian activity accompanies morphological asymmetry during the ovarian cycle in rhesus and cynomolgus macaques. This study was designed to determine whether functional ovarian asymmetry could be used to detect the upcoming dominant follicle (DF) even before it was grossly visible.
A L, Goodman, M J, Koering, W E, Nixon, R F, Williams, G D, Hodgen   +4 more
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EFFECT OF DOMINANT FOLLICLE ABLATION ON OVARIAN FOLLICLE COUNT IN SAHIWAL CATTLE

Indian Journal of Veterinary and Animal Sciences Research
The present study was conducted to investigate the effect of dominant follicle ablation on follicle count in Sahiwal cattle. All the selected donor animals were randomly divided into two equal groups. Donor cows in group 1(n=10) were subjected to dominant follicle(s) ablation, donor cows in group 2(n=10) without ablation and both groups were ...
null P. Vamsi Krishna, null L.S.S. Vara Prasad Reddy, null B.R. Naik, null M. Kalyana Chakravarthi, null K. Veera Bramhaiah, null A.V.N. Sivakumar, null N. Venkata Krishna   +6 more
openaire   +1 more source