Results 51 to 60 of about 147,586 (226)

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

Degeneration rate of preantral follicles in the ovaries of goats [PDF]

open access: yes, 2002
The degeneration rate of ovarian preantral follicles in goats, and the distribution in the follicular classes (primordial, primary or secondary) was assessed. Ovaries from adult goats were collected at a local slaughterhouse.
Báo, Sônia Nair   +8 more
core   +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

Methods for Equine Preantral Follicles Isolation: Quantitative Aspects

open access: yesReproduction in Domestic Animals, 2013
ContentsThe aim of this study was to test the use of mechanical and mechanical‐enzymatic methods, saline solution (SS), and PBS solution for the manipulation and isolation of mare ovarian preantral follicles (PAFs). The ovaries were subjected to mechanical isolation (mixer) alone or in association with enzymatic digestion (collagenase).
Rivas Leonel, Ellen   +5 more
openaire   +3 more sources

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

Short-term preservation of canine preantral follicles : effects of temperature, medium and time [PDF]

open access: yes, 2009
The use of the large pool of preantral follicles is a promising alternative to provide high numbers of fertilizable oocytes to reproductive biotechnology.
Báo, Sônia Nair   +9 more
core   +1 more source

Morphologic and quantitative evaluation of preantral follicles of buffalo (Bubalus bubalis) in different reproductive phases

open access: yesItalian Journal of Animal Science, 2010
The objectives of the present study were to estimate the population of the normal and degenerated preantral follicles of buffaloes in different reproductive phases and to classify the different types of degeneration of ovarian preantral follicles.
L.S. Leal, E. Oba, F.C.A. Carvalho
doaj   +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

Vitrification of bovine preantral follicles with dimethylsulfoxide and sucrose plus α-tocopherol

open access: yesPesquisa Veterinária Brasileira, 2016
: The objective of this study was to evaluate the vitrification of bovine preantral follicles with dimethylsulfoxide (D) and sucrose (S) plus α-tocopherol 5mmol/L (T5) or 10mmol/L (T10) and, evaluate the thawed with minimal essential medium (m) with or ...
Carolina R. Jimenez   +4 more
doaj   +1 more source

C-type natriuretic peptide enhances mouse preantral follicle growth [PDF]

open access: yesReproduction, 2019
Compared to ovarian antral follicle development, the mechanism underlying preantral follicle growth has not been well documented. Although C-type natriuretic peptide (CNP) involvement in preantral folliculogenesis has been explored, its detailed role has not been fully defined.
Guangyin, Xi   +7 more
openaire   +2 more sources

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