Results 21 to 30 of about 5,100 (172)
In Vitro Growth of Preantral Follicle and Maturation of Intrafollicular Oocyte from Aged Mice
Journal of Animal Reproduction and Biotechnology, 2019 This study aimed to recover the ovarian function through in vitro culture of preantral follicles from aged mice. First, we isolated the preantral follicles from ovaries of sixty-seven-week old B6D2F1 mice with decreased fecundity to know how many ...
Jung-Ah Yoon, Jung-Kyu Choi
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Cryopreservation and characterization of canine preantral follicles
Cryobiology, 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
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Inhibin A and B secretion in mouse preantral follicle culture [PDF]
Human 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.
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In vitro development of pig preantral follicles [PDF]
Bioscientifica 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.
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Mechanical isolation of capuchin monkey (Cebus apella) preantral ovarian follicles
Arquivo 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
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Animals, 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
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BMC 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
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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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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 +4 more
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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 +3 more
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