Results 31 to 40 of about 4,914 (173)

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

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

Animal 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, Lucci, Carolina Madeira, Luque, Maria Carolina Aquino, Báo, Sônia Nair   +3 more
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Vitrification of bovine preantral follicles with dimethylsulfoxide and sucrose plus α-tocopherol

Pesquisa 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, Jurandy M. Penitente-Filho, Ciro A.A. Torres, Amanda M. Medeiros, Leandro S. Silva   +4 more
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C-type natriuretic peptide enhances mouse preantral follicle growth [PDF]

Reproduction, 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, Wenjing, Wang, Sarfaraz A, Fazlani, Fusheng, Yao, Mingyao, Yang, Jing, Hao, Lei, An, Jianhui, Tian   +7 more
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Development of antral follicles after xenografting of isolated small human preantral follicles

Reproductive BioMedicine Online, 2008
Small human pre-antral follicles can be enzymatically isolated from the surrounding stroma, and are able to survive after 7 days of xenografting. The aim of the present study was to assess the developmental capacity of enzymatically isolated human follicles after long-term xenografting to severe combined immunodeficient (SCID) mice.
Marie-Madeleine, Dolmans, Wu Yuan, Yuan, Alessandra, Camboni, Antoine, Torre, Anne, Van Langendonckt, Belen, Martinez-Madrid, Jacques, Donnez   +6 more
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Canine preantral follicles cultured with various concentrations of follicle-stimulating hormone (FSH)

Theriogenology, 2010
The objective was to evaluate the effects of various concentrations of exogenous FSH during in vitro culture of isolated canine preantral follicles. Preantral secondary follicles (>200 microm) were isolated by microdissection and cultured for 18 d in supplemented alpha-Minimum Essential Medium (alpha-MEM).
Michelle Karen Brasil, Serafim, Valdevane Rocha, Araújo, Gerlane Modesto, Silva, Ana Beatriz Graça, Duarte, Anderson Pinto, Almeida, Roberta Nogueira, Chaves, Cláudio Cabral, Campello, Cláudio Afonso Pinho, Lopes, José Ricardo, de Figueiredo, Lúcia Daniel Machado, da Silva   +9 more
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Histological and ultrastructural analysis of cryopreserved sheep preantral follicles [PDF]

Animal Reproduction Science, 2006
The aim of this study was to verify the histological and ultrastructural characteristics of sheep preantral follicles after exposure of ovarian tissue to cryopreservation in glycerol (GLY), ethylene glycol (EG), propanediol (PROH) or dimethyl sulfoxide (DMSO) in order to determine the optimum method to store sheep ovarian tissue for later experimental ...
Santos, Regiane R., Rodrigues, Ana Paula Ribeiro, Costa, Sonia Helena Furtado, Silva, José Roberto Viana, Matosa, Maria H.T., Lucci, Carolina Madeira, Báo, Sônia Nair, Hurk, Rob Van Den, Figueiredo, José Ricardo de   +8 more
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Isolamento mecânico de folículos ovarianos pré-antrais em cabras Mechanical isolation of ovarian preantral follicles in the goat

Ciência Rural, 1998
Com o objetivo de isolar mecanicamente folículos pré-antrais caprinos, 52 ovários de cabras sem raça definida (SRD) foram coletados em matadouros ou extraídos por ovariectomia.
Ana Paula Ribeiro Rodrigues, Christiani Andrade Amorim, Carolina Madeira Lucci, José Ricardo de Figueiredo, Paulo Bayard Dias Gonçalves, Assis Roberto de Bem   +5 more
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FOLLICLE POPULATIONS IN MARE OVARIES: FROM PREANTRAL TO PREOVULATORY FOLLICLES

Enciclopédia Biosfera, 2015
The purpose of this study was to describe morphological and quantitative aspects of preantral and antral follicles in the equine ovary. Six ovaries were collected from necropsied mares and sliced lengthwise parallel to the ovulation fossa. The slices were fixed and processed for histological evaluation under light microscopy.
Rivas Leonel, Ellen, Bento-Silva, Viviane, Costa e Silva, Eliane Vianna, Zúccari, Carmem Estefânia Serra Neto   +3 more
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Light microscopical and ultrastructural characterization of goat preantral follicles [PDF]

Small Ruminant Research, 2001
Goat ovarian preantral follicles were morphologically and ultrastructurally described in this work. Primordial follicles are oocytes surrounded by one layer of squamous or squamous-cuboidal granulosa cells; primary follicles have a single layer of cuboidal granulosa cells, and secondary follicles are oocytes surrounded by two or more layers of cuboidal
Lucci, Carolina Madeira, Silva, José Roberto Viana, Carvalho, Fabíola Christian Almeida de, Figueiredo, José Ricardo de, Báo, Sônia Nair   +4 more
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