Results 271 to 280 of about 307,578 (312)
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Orexin system in swine ovarian follicles
Domestic Animal Endocrinology, 2018Successful reproduction is strictly linked to metabolic cues. The orexins are a family of hypothalamic neurohormones, well known for their key role in the control of food intake and the involvement in several aspects of the reproductive process. The biological actions of both orexins are carried out through binding to the related Orexin 1 (OX1R) and ...
CICCIMARRA, ROBERTA +11 more
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In vitro culture of ovarian follicles
Reviews of Reproduction, 1997This review offers a practically oriented introduction to follicle culture in vitro, focusing on mouse follicles, but with reference to other species. The main principles of follicle growth are addressed, including the constraints of tissue culture, methods of follicle isolation, and techniques for individual and collective culture of intact follicles.
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Impact of endometriosis on the ovarian follicles
Best Practice & Research Clinical Obstetrics & GynaecologyA significant body of evidence has supported a negative impact of endometriosis on ovarian follicles; however, the origin and relevance of this ovarian impairment in endometriosis is still a matter of debate. The ovarian damage can be caused by endometriosis itself or by surgeries aiming to remove endometriotic lesions.
Maíra Casalechi +4 more
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The bovine dominant ovarian follicle
Journal of Animal Science, 2007Central 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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Reconstituting the ovarian follicle
Science, 2021Developmental Biology Recent advances have enabled the generation of oocytes from pluripotent stem cells in vitro. However, these cells require a somatic environment to develop fully as reproductive cells. Yoshino et al. applied what is known about differentiation processes in vivo to determine a culture condition to differentiate embryonic stem cells ...
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Follicle dynamics during ovarian ageing
Molecular and Cellular Endocrinology, 2000The human ovary is endowed at birth with a fixed number of primordial follicles which steadily declines throughout life as a result of atresia and recruitment towards ovulation. The pattern of this decline is not exponential, but more bi-exponential corresponding to a 'broken-stick' regression of logged total numbers of follicles against age.
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Ultrasound Scanning of Ovarian Follicles
Clinics in Obstetrics and Gynaecology, 1983B J, Hackelöer, H N, Sallam
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[Relaxin in ovarian follicles].
Bulletin de l'Association des anatomistes, 1984Since the first observations of HISAW, the knowledge on the chemistry and the biological properties of relaxin improved in an important way. It is now well known that relaxin is a peptide hormone, strictly related to insulin. The extraction and purification of porcine relaxin and the application of radio-immunological and immuno-histochemical methods ...
G C, Balboni, G B, Vannelli
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