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HDlive 3D ultrasound and follicular development
Journal of Medical Ultrasonics, 2013Two-dimensional (2D) ultrasonography is the fundamental technology on which diagnosis, management, and control in reproductive medicine depends. Over the years there have been efforts to improve 2D ultrasound image quality. In recent years, a series of software has appeared that has generated enormous interest.
Fernando, Bonilla-Musoles +4 more
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Angiogenesis in ovarian follicular and luteal development
Best Practice & Research Clinical Obstetrics & Gynaecology, 2000Angiogenesis is the process of new capillary formation from previously existing mature vessels. The adult ovary exhibits dramatic growth and regression of capillary networks on a cyclic basis. Ovarian follicles and the corpus luteum contain and produce endothelial cell-specific factors, which may act alone or in concert to regulate the process of ...
T M, Hazzard, R L, Stouffer
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Kinetic Aspects of Follicular Development in the Rat
1987The ovary has many similarities to other “renewal tissues” in adults. Renewal tissues are those in which differentiated, functional cells are continuously being replaced by proliferation of more primitive cells. These tissues are composed of a hierarchy of cells: at one end of the hierarchy are stem cells which are less differentiated and can divide ...
A N, Hirshfield, W A, Schmidt
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FOLLICULAR DEVELOPMENT IN THE IMMATURE GUINEA-PIG
Journal of Endocrinology, 1980A method for making statistical comparisons between populations and types of antral follicles within the ovary of the immature guinea-pig is described. This was used to demonstrate that atresia in the antral follicles first appeared at around 14 days of age, but that the population of healthy antral follicles remained remarkably consistent throughout ...
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Sonographic monitoring of ovarian follicular development
Journal of Clinical Ultrasound, 1981AbstractSerial sonographic examinations were performed on 15 volunteers five days during the expected midcycle. The 75 sonographic studies were evaluated in a nonbiased manner, and the following features were assessed: (1) the presence or absence of a follicle within the ovary; (2) if present, the average dimension of the follicle; (3) the ability to ...
A C, Fleischer +4 more
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Characteristics of ovarian follicular development in Norplant users
International Journal of Gynecology & Obstetrics, 1991Daily transvaginal ultrasound (US) scanning of the ovaries to assess follicular development and daily blood sampling were performed on 19 Norplant (Leiras, Turku, Finland) subdermal contraceptive implant users who had regular menstrual cycles and on 10 normally cycling women. Three groups were identified in the implant users based on US finding.
D, Shoupe +4 more
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Intraovarian regulation of follicular development
Animal Reproduction Science, 1992Abstract Pituitary gonadotrophins are required for normal follicular growth and development; the proliferation of granulosa cells, however, cannot be attributed to the direct actions of these hormones. Since polypeptide growth factors are known to have mitogenic actions on granulosa cells, the possibility that the surrounding thecal cells may be a ...
Derek K. Lobb, Jennifer Dorrington
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Ultrasound and follicular development
1984Ultrasound monitoring of ovarian structural changes has become a widely accepted method for the evaluation of ovarian function. The non-stimulated ovary of the early follicular phase shows a relatively homogeneous structure partly interrupted by small areas of ‘thinning’ (Figure 1).
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Ovarian follicular development in the pregnant hamster
The Anatomical Record, 1964AbstractFollicular activity in the ovary of the pregnant hamster is divided into two periods. During the first eight days (corresponding to the duration of pseudopregnancy) an average of 11 follicles per ovary from 277 to 553 μ are present. From day 10 to 16 of pregnancy, the ovary contains 22 follicles ranging from 277 to 600 μ and larger.
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[Effect of extracellular vesicles and microRNAs in follicular fluid on follicular development].
Sheng wu gong cheng xue bao = Chinese journal of biotechnology, 2020Extracellular vesicles (EVs) refer to bilayer membrane transport vesicles secreted by cells. EVs can take macromolecules from cells and transfer them to receptor cells. Among these macromolecular substances, the most studied are microRNAs (miRNAs). miRNA is non-coding RNA involved in the regulation of gene expression.
Hengqin, Wang +6 more
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