Search Results - "Van den Hurk, R"

Vitrification of goat preantral follicles enclosed in ovarian tissue by using conventional and solid-surface vitrification methods by Santos, R R, Tharasanit, T, Van Haeften, T, Figueiredo, J R, Silva, J R V, Van den Hurk, R

“…Caprine preantral follicles within ovarian fragments were exposed to or vitrified in the presence of sucrose, dimethyl sulfoxide (DMSO), ethylene glycol (EG),…”
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Expression of growth differentiation factor 9 (GDF9), bone morphogenetic protein 15 (BMP15), and BMP receptors in the ovaries of goats by Silva, J.R.V., van den Hurk, R., van Tol, H.T.A., Roelen, B.A.J., Figueiredo, J.R.

“…The process of ovarian folliculogenesis is composed of proliferation and differentiation of the constitutive cells in developing follicles. In goats,…”
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Effects of growth differentiation factor-9 and FSH on in vitro development, viability and mRNA expression in bovine preantral follicles by Vasconcelos, G L, Saraiva, M V A, Costa, J J N, Passos, M J, Silva, A W B, Rossi, R O D S, Portela, A M L R, Duarte, A B G, Magalhães-Padilha, D M, Campelo, C C, Figueiredo, J R, van den Hurk, R, Silva, J R V

“…The present study investigated the role of growth differentiation factor (GDF)-9 and FSH, alone or in combination, on the growth, viability and mRNA expression…”
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Expression of bone morphogenetic protein2 (BMP2), BMP4 and BMP receptors in the bovine ovary but absence of effects of BMP2 and BMP4 during IVM on bovine oocyte nuclear maturation and subsequent embryo development by Fatehi, A.N., van den Hurk, R., Colenbrander, B., Daemen, A.J.J.M., van Tol, H.T.A., Monteiro, R.M., Roelen, B.A.J., Bevers, M.M.

“…Bone morphogenetic proteins (BMPs) have been implicated in the regulation of ovarian follicular development and are promising candidates to apply in IVM and…”
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Influence of FSH and hCG on the resumption of meiosis of bovine oocytes surrounded by cumulus cells connected to Membrana granulosa by Tol, H.T.A. van (University of Utrecht, Utrecht, The Netherlands.), Eijk, M.J.T. van, Mummery, C.L, Hurk, R. van den, Bevers, M.M

“…Cumulus oocyte complexes (COCs) and cumulus oocyte complexes connected to a piece of the membrane granulosa (COCGs) were isolated from bovine antral follicles…”
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Levels of mRNA for bone morphogenetic proteins, their receptors and SMADs in goat ovarian follicles grown in vivo and in vitro by Costa, J J N, Passos, M J, Leitão, C C F, Vasconcelos, G L, Saraiva, M V A, Figueiredo, J R, van den Hurk, R, Silva, J R V

“…This study investigated the stability of housekeeping genes (glyceraldehyde-3-phosphate dehydrogenase, β-tubulin, β-actin, phosphoglycerate kinase (PGK), 18S…”
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Involvement of growth hormone (GH) and insulin-like growth factor (IGF) system in ovarian folliculogenesis by Silva, J.R.V., Figueiredo, J.R., van den Hurk, R.

“…During the last decade, involvement of growth hormone (GH), insulin-like growth factors (IGFs) and IGF binding proteins (IGFBPs) in ovarian folliculogenesis…”
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The activin-follistatin system and in vitro early follicle development in goats by Silva, J R V, Tharasanit, T, Taverne, M A M, van der Weijden, G C, Santos, R R, Figueiredo, J R, van den Hurk, R

“…The aim of the present study was to investigate the effects of activin-A and follistatin on in vitro primordial and primary follicle development in goats. To…”
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Formation of mammalian oocytes and their growth, differentiation and maturation within ovarian follicles by van den Hurk, Robert, Zhao, Jia

“…The limited knowledge on the regulation of oocyte formation, the different steps of folliculogenesis and the required conditions for oocytes to undergo proper…”
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Ovarian follicle development in vitro and oocyte competence: advances and challenges for farm animals by Silva, J.R.V., van den Hurk, R., Figueiredo, J.R.

“…During the last 2 decades, research on in vitro preantral follicle growth and oocyte maturation has delivered fascinating advances concerning the knowledge of…”
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Gene expression and protein localisation for activin-A, follistatin and activin receptors in goat ovaries by Silva, J R V, van den Hurk, R, van Tol, H T A, Roelen, B A J, Figueiredo, J R

“…We studied the protein and mRNA expression of activin-A, follistatin and activin receptors in goat ovaries to find evidence of their possible role in ovarian…”
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Effects of conditioned media from murine granulosa cell lines on the growth of isolated bovine preantral follicles by Schotanus, K., Hage, W.J., Vanderstichele, H., van den Hurk, R.

“…Isolated morphologically normal bovine preantral follicles (40 to 70 μm) were cultured for 8 d in collagen gel in control medium or in 1 of 3 conditioned media…”
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Bovine preantral follicles and activin: Immunohistochemistry for activin and activin receptor and the effect of bovine activin a in vitro by Hulshof, S.C.J., Figueiredo, J.R., Beckers, J.F., Bevers, M.M., Vanderstichele, H., Hurk, R. van den

“…Activin was originally isolated from follicular fluid as a factor stimulating FSH from the pituitary. Recent studies also suggest a local role for activin in…”
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Molecular characteristics of oocytes and somatic cells of follicles at different sizes that influence in vitro oocyte maturation and embryo production by Bezerra, F.T.G., Dau, A.M.P., Van Den Hurk, R., Silva, J.R.V.

“…During the last 10 to 15 yr, in vitro research to predict antral follicle growth and oocyte maturation has delivered interesting advances in the knowledge of…”
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Ultrastructure and viability of isolated bovine preantral follicles by van den Hurk, R, Spek, ER, Hage, WJ, Fair, T, Ralph, JH, Schotanus, K

“…Techniques for the isolation of ovarian follicles and maturation of oocytes in vitro have enormous reproductive potential. Preservation of normal tissue…”
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The Kit ligand/c-Kit receptor system in goat ovaries: gene expression and protein localization by Silva, J R V, van den Hurk, R, van Tol, H T A, Roelen, B A J, Figueiredo, J R

“…Relatively little information is available on the local factors that regulate folliculogenesis in goats. To examine the possibility that the Kit ligand (KL)…”
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Influence of interleukin 1 beta and tumour necrosis factor alpha on the in vitro growth, maturation and mitochondrial distribution of bovine oocytes from small antral follicles by Lima, Feo, Bezerra, Ftg, Souza, G B, Matos, Mht, van den Hurk, R, Silva, Jrv

“…SummaryThis study aimed to investigate the effects of IL1β and TNFα on growth and maturation of oocytes from small follicles (1-3 mm) during in vitro culture…”
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Ovarian development in intrauterine growth-retarded and normally developed piglets originating from the same litter by Da Silva-Buttkus, P, van den Hurk, R, te Velde, ER, Taverne, MA

“…Epidemiological studies in humans linking adult disease to growth in utero indicate that prenatal life is a critical period for the appropriate development of…”
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Distribution of the intermediate filament proteins vimentin, keratin, and desmin in the bovine ovary by van den Hurk, R, Dijkstra, G, van Mil, F N, Hulshof, S C, van den Ingh, T S

“…The distribution of the intermediate filament (IF) proteins desmin, keratin, and vimentin was studied immunohistochemically in bovine ovaries. Special…”
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Insulin-like growth factor-I (IGF-I) stimulates the development of cultured rat pre-antral follicles by Zhao, J., Taverne, M.A.M., Van Der Weijden, G.C., Bevers, M.M., Van Den Hurk, R.

“…The aim of the present study is to investigate the effect of insulin‐like growth factor (IGF‐I) on the development of cultured rat pre‐antral follicles…”
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