Results 31 to 40 of about 6,106 (203)

Inhibin A and B secretion in mouse preantral follicle culture [PDF]

open access: yesHuman Reproduction, 1998
Conditioned media from single mouse ovarian follicles cultured from the early preantral stage up to complete maturity were analysed for different immunoreactive inhibin forms. The inhibin assays measured (i) alpha-specific inhibin, as represented by a mix of 32 and and 57 kDa inhibins, inhibin precursors, alpha-subunit and its precursors; (ii) dimeric ...
Smitz, Johan, Cortvrindt, R.
openaire   +3 more sources

Cryopreservation and characterization of canine preantral follicles

open access: yesCryobiology, 2018
The aim of this study was to define the population, morphological and ultrastructural characteristics of bitch preantral follicles (PAFs) and to compare the effects on the morphology of PAF of two cryopreservation techniques - slow freezing (SF) and vitrification (V) - of bitches' ovarian tissue. The average population (number per ovary) of PAFs was 48,
J.L.P.R. Jivago   +5 more
openaire   +2 more sources

In vitro development of pig preantral follicles [PDF]

open access: yesBioscientifica Proceedings, 2020
A limiting factor to realizing the full potential of many of the new reproductive techniques is the lack of abundant numbers of fertilizable oocytes. This problem could be addressed by using the large source of oocytes available from preantral and primordial follicles by developing systems for in vitro growth.
openaire   +2 more sources

Mechanical isolation of capuchin monkey (Cebus apella) preantral ovarian follicles

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2003
The aim of this study was to adapt a mechanical procedure for the isolation of intact preantral follicles from Cebus apella ovaries. The interval effect of serial sections of the tissue chopper was tested on a number of preantral follicles isolated from ...
S.F.S. Domingues   +6 more
doaj   +1 more source

Follicular Atresia, Cell Proliferation, and Anti-Mullerian Hormone in Two Neotropical Primates (Aotus nancymae and Sapajus macrocephalus)

open access: yesAnimals, 2023
This study evaluated the follicular atresia, cell proliferation, and anti-Mullerian hormone action in Aotus nancymae and Sapajus macrocephalus during three sexual phases (follicular, luteal, and gestational).
Deise de Lima Cardoso   +5 more
doaj   +1 more source

Ovarian preantral follicles are responsive to FSH as early as the primary stage of development

open access: yes, 2020
Follicle-stimulating hormone (FSH) is required for ovarian antral folliculogenesis and steroidogenesis, and there is increasing evidence that it may play critical roles in preantral follicle development.
Candelaria, Juliana I.   +2 more
core   +1 more source

Comparison of the developmental potential of 2-week-old preantral follicles derived from vitrified ovarian tissue slices, vitrified whole ovaries and vitrified/transplanted newborn mouse ovaries using the metal surface method

open access: yesBMC Biotechnology, 2008
Background Cryopreservation of preantral follicles or ovarian tissues would enable the storage of large numbers of primordial follicles or preantral follicles and preserves the structural integrity of somatic and reproductive cells. In the present study,
Hsu Kung-Hao   +5 more
doaj   +1 more source

Development of encapsulated preantral follicles following transplantation in ALG and ALG+WJH groups.

open access: yes, 2023
Development of encapsulated preantral follicles following transplantation in ALG and ALG+WJH groups.
Rouhollah Fathi (7349051)   +8 more
core   +1 more source

Testosterone selectively increases primary follicles in ovarian cortex grafted onto embryonic chick membranes: relevance to polycystic ovaries

open access: yes, 2008
Histological studies have demonstrated that polycystic ovaries (PCO) contain increased numbers of preantral follicles with a specific increase in primary follicles.
P Musonda   +17 more
core   +1 more source

Morphometric and ultrastructural characterization of Bos indicus preantral follicles [PDF]

open access: yesAnimal Reproduction Science, 2005
The aim of the present study was to characterize the ultrastructure of zebu cow preantral follicles (PAFs). Ovarian cortex samples were processed for light and transmission electron microscopy. Primordial follicles consisted of an oocyte surrounded by one layer of flattened or flattened-cuboidal granulosa cells. The oocyte contained a large and usually
Kacinskis, Mirella Ávila   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy