Results 31 to 40 of about 107,481 (307)

Female reproductive aging is master-planned at the level of ovary.

open access: yesPLoS ONE, 2014
The ovary receives a finite pool of follicles during fetal life. Atresia remains the major form of follicular expenditure at all stages since development of ovary.
Sayani Banerjee   +4 more
doaj   +1 more source

Ovarian function during hormonal contraception assessed by endocrine and sonographic markers: a systematic review [PDF]

open access: yes, 2016
This systematic review focuses on the literature evidence for residual ovarian function during treatment with hormonal contraceptives. We reviewed all papers which assessed residual ovarian activity during hormonal contraceptive use, using endocrine ...
Bastianelli, Carlo   +5 more
core   +1 more source

Prediction of the Spontaneous Estrus Expression Period Based on Large (≥10 mm) Follicle Numbers in Lactating Holstein Dairy Cows

open access: yesVeterinary Sciences, 2023
The objectives of this study were (1) to investigate the distribution of large (≥10 mm) follicle numbers during the estrous cycle and (2) to compare the timing of the estrus expression period after the ovarian examination between cows with one large ...
Ryotaro Miura   +9 more
doaj   +1 more source

Action of the Metalloproteinases in Gonadal Remodeling during Sex Reversal in the Sequential Hermaphroditism of the Teleostei Fish Synbranchus marmoratus (Synbranchiformes: Synbranchidae) [PDF]

open access: yes, 2018
Teleostei present great plasticity regarding sex change. During sex reversal, the whole gonadincluding the germinal epithelium undergoes significant changes, remodeling, and neoformation.However, there is no information on the changes that occur within ...
Antoneli, Fernanda   +3 more
core   +2 more sources

Female reproductive decline is determined by remaining ovarian reserve and age. [PDF]

open access: yesPLoS ONE, 2014
The early decline and loss of female fertility in humans and other species represents an evolutionary paradox. Despite being born with a vast stock of oocytes, females encounter an exhaustion of ovarian reserve and sterility half way through their ...
Pawel Wilkosz   +3 more
doaj   +1 more source

Comparison of PUFA profiles in the blood and in follicular fluid and its association with follicular dynamics after PGF2α induced luteolysis in dairy cows [PDF]

open access: yes, 2016
The objectives of the present study were to examine the fatty acid (FA) profiles in serum and in the follicular fluid (FF) and the association between polyunsaturated fatty acid level (PUFA) and follicular growth dynamics following induced luteolysis in ...
Adamov, Nikola   +8 more
core   +3 more sources

Dynamic genome-scale cell-specific metabolic models reveal novel inter-cellular and intra-cellular metabolic communications during ovarian follicle development

open access: yesBMC Bioinformatics, 2019
Background The maturation of the female germ cell, the oocyte, requires the synthesis and storing of all the necessary metabolites to support multiple divisions after fertilization.
Beatriz Peñalver Bernabé   +7 more
doaj   +1 more source

Ovarian reserve and anti-Mullerian hormone (AMH) in mothers of dizygotic twins [PDF]

open access: yes, 2013
This study aimed to explore if natural dizygotic (DZ) twinning is associated with earlier menopause and lower anti-Mullerian hormone (AMH) values. We investigated if advanced biological reproductive aging, which can be responsible for the multiple ...
Boomsma, Dorret I   +4 more
core   +4 more sources

Ovarian antral follicle number and the amount of gonadotropin used in ovarian stimulation in polycystic ovarian patients.

open access: yesمجلة كلية الطب, 2011
Background: Polycystic ovary syndrome is the most common cause of anovulation, and the number of antral follicles is of great importance in determining ovarian reserve, so identification of patients with diminished ovarian reserve help in choosing ...
Hanan L. Sudek
doaj   +1 more source

Fractionation of Ovarian Follicles and in vitro Oocyte Maturation and Ovulation Assay of Ciona intestinalis Type A

open access: yesBio-Protocol, 2020
Ascidians are the closest living relatives of vertebrates (Delsuc et al., 2006; Satoh et al., 2014) and are important for the evolutionary study of the ovarian follicle development including oocyte maturation and ovulation.
Shin Matsubara   +4 more
doaj   +1 more source

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