Results 151 to 160 of about 15,987 (189)

Mouse oocyte differentiation during antral follicle development

Microscopy Research and Technique, 2006
AbstractDuring antral follicle development mouse oocytes undergo rearrangement of granulosa cell interactions and the oocytes released from follicles at the beginning or at the end of antral development are either devoid of denuded oocytes (DO) or strictly associated with cumulus‐intact (CI) cumulus cells.
CECCONI, Sandra, ROSSI G, PALMERINI, MARIA GRAZIA   +2 more
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138 Relationships Between Antral Follicle Count, Ovarian Volume, Pre-Antral Follicle Number, and Oocyte Quality

Reproduction, Fertility and Development, 2017
The objective was to evaluate the possible relationships between AFC, ovarian volume, ovarian follicle reserve and oocyte quality in abattoir-derived ovaries (experiment 1) and in cows (experiment 2) submitted to OPU. Antral follicle counts of =25, 16 to 24, and = 16 were used to define AFC classes as high (HAFC), intermediate (IAFC), and low (LAFC) in
G. L. Vasconcelos, R. Maculan, N. Alves, A. L. A. P. L. Ribeiro, A. W. B. Silva, E. V. Cunha, G. M. Moreira, J. A. S. Viafara, A. S. B. Guimaraes, C. V. Ribeiro, J. R. V. Silva, T. L. C. Pinto, J. N. S. Sales, J. C. DeSouza   +13 more
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Gelatinases (MMP2 and MMP9) in swine antral follicle

BioFactors, 2011
AbstractFollicular growth is allowed by extracellular matrix remodeling and vascular network development. Since matrix metalloproteinases (MMPs) play a crucial role in both of these processes, the aim of the present study was to evaluate the expression of gelatinases MMP2 and MMP9 in swine ovarian follicle (theca and granulosa compartments) during its ...
BASINI, Giuseppina, BUSSOLATI, Simona, BAIONI, Laura, GRASSELLI, Francesca   +3 more
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Antral follicle population in prepubertal and pubertal heifers

Reproduction, Fertility and Development, 2018
The antral follicle count (AFC) is an important tool in the selection of bovine females destined for biotechnology. However, little is known about AFC in prepubertal and pubertal heifers. Some challenges inherent to the physiology of young females must be considered to achieve efficient rates with different procedures, such as ovum pick-up and IVF ...
M M, Seneda, F, Morotti, A F, Zangirolamo, N C, da Silva, T K, Sanches, W, Blaschi, T R R, Barreiros   +6 more
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Comprehensive proteomic profiling of early antral follicles from sheep

Animal Reproduction Science, 2023
The present study evaluates the proteome of early antral follicles from Ovis aries. Fifty follicles were collected from ovaries of adult ewes and extracted proteins were trypsin-digested, desalted and analyzed by LC-MS/MS. Genes were screened for potential modulation by miRNAs and protein data, subjected to functional enrichment analysis.
Kamila S, Otávio, José R S, Passos, Renato F, Silva, Laritza F, Lima, Jesús, Cadenas, Victor M, Paes, Hudson H V, Correia, Anna Clara A, Ferreira, Francisca G, Canafístula, Maria Júlia B, Bezerra, Laís L B, Oliveira, Guilherme G C, Carvalho, Carlos R K, Paier, Claudia, Pessoa, Denise G, Guerreiro, Maria Elisabete A, Moraes, José Ricardo, Figueiredo, Arlindo A, Moura   +17 more
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Is antral follicle count a genetic trait?

Menopause, 2010
The aim of this study was to determine the relationship between maternal age of menopause and antral follicle count.This was a cross-sectional study of 124 women aged 25 to 48 years presenting with infertility. Women reported their mother's age of menopause and underwent transvaginal ultrasound to assess antral follicle count.
Mitchell P, Rosen, Erica B, Johnstone, Sara J, Gillham, Aisha E, Modan, Angela K M, Lipshutz, Renee, Reijo-Pera, Marcelle I, Cedars   +6 more
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Antral follicles confer developmental competence on oocytes

Zygote, 1996
This paper addresses the proposition, first advanced by Wilson (1925), that successful embryogenesis depends on an ordered series of events in oogenesis. It is at the completion of this varied set of intracellular changes that the oocyte finally acquires its full capacity to support fertilisation and development. Amongst the earliest nuclear events are
R.M. Moor, C Lee, Y.F. Dai, J Fulka
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Antral follicle count in clinical practice: analyzing clinical relevance

Fertility and Sterility, 2011
To determine the clinical relevance of obtaining antral follicle counts (AFC) before ovarian stimulation in an IVF program.Retrospective cohort study.An IVF program in a large academic teaching hospital.A total of 1,049 stimulated IVF cycles in 734 subjects between September 2003 and December 2007 selected from our program's database.Basal antral ...
Albert, Hsu, Margaret, Arny, Alexander B, Knee, Carrie, Bell, Elizabeth, Cook, Amy L, Novak, Daniel R, Grow   +6 more
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130 Increased antral follicle population at 60 days of gestation in Holstein cows with low antral follicle count

Reproduction, Fertility and Development, 2019
The antral follicle count (AFC) has been pointed out as one of the main factors that influence the efficiency of reproductive biotechniques. Thus, AFC is considered a fertility marker, which has high repeatability in the same animal. The objective of this study was to evaluate AFC in cows at AI (nonpregnant) and at two moments of gestation (30 and 60 ...
R. G. Droher, F. Morotti, A. Guidugli Lindquist, A. Fonseca Zangirolamo, M. Marcondes Seneda   +4 more
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Endocrine regulation of ovarian antral follicle development in cattle

Animal Reproduction Science, 2003
Antral follicle growth in cattle occurs in two distinct phases; the first 'slow' growth phase spans the time from antrum acquisition to a size of approximately 3 mm detectable by transrectal ultrasound, and the second 'fast' phase is gondadotrophin-dependent and includes cohort growth, dominant follicle (DF) selection, and DF growth.
M, Mihm, E C L, Bleach
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