Results 221 to 230 of about 17,312,095 (266)

Role of Macrophages in Ovarian Follicular Development

Hormone Research, 2008
The effects of macrophages on granulosa cell proliferation were examined using gonadotropin-primed immature female rats and osteopetrotic (op/op) mice, a model defective in monocyte-macrophage lineage cells. Macrophages were found in the follicles at various developmental stages in rats and mice.
H, Katabuchi, Y, Fukumatsu, M, Araki, Y, Suenaga, H, Ohtake, H, Okamura   +5 more
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HDlive 3D ultrasound and follicular development

Journal of Medical Ultrasonics, 2013
Two-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, Oscar, Caballero, Francisco, Raga, Francisco, Bonilla, Juan Carlos, Castillo   +4 more
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Kinetic Aspects of Follicular Development in the Rat

1987
The 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, 1980
Abstract A 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 ...
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Sonographic monitoring of ovarian follicular development

Journal of Clinical Ultrasound, 1981
AbstractSerial 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, J F, Daniell, J, Rodier, A M, Lindsay, A E, James   +4 more
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Characteristics of ovarian follicular development in Norplant users

International Journal of Gynecology & Obstetrics, 1991
Daily 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, J, Horenstein, D R, Mishell, M, Lacarra, A, Medearis   +4 more
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Intraovarian regulation of follicular development

Animal Reproduction Science, 1992
Abstract 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

1984
Ultrasound 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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Follicular development in prepubertal heifers

Animal Reproduction Science, 1993
Ovarian follicular waves, characterized by the emergence, persistence, and regression or ovulation of a large follicle, occur in both cyclic and pregnant cattle. The purpose of this study was to characterize follicular activity and, in particular, the turnover of the large follicles in prepubertal heifers.
H.W. Hopper, R.W. Silcox, D.J. Byerley, T.E. Kiser   +3 more
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Ovarian follicular development in the pregnant hamster

The Anatomical Record, 1964
AbstractFollicular 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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