Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sandra Milena Bernal Ulloa"'
Autor:
Ángela María Gonella Diaza, Jorge Eduardo Atuesta Bustos, Sandra Milena Bernal Ulloa, Liliana Chacón Jaramillo
Publikováno v:
Revista de Investigación Agraria y Ambiental, Vol 4, Iss 1 (2013)
La producción de embriones in vitro (PIV) es una biotecnología reproductiva que impacta los sistemas ganaderos favoreciendo el mejoramiento genético y que también se ha utilizado como modelo de investigación del desarrollo embrionario en otras e
Externí odkaz:
https://doaj.org/article/2d110bc7dfa44c048772f569de5b2a19
Autor:
Sylke Winkler, Dorit Pache, Sandra Milena Bernal-Ulloa, N.A. Chavarria, E. Herrera-Puerta, Heiner Niemann, Doris Herrmann, Andrea Lucas-Hahn, Nelida Rodriguez-Osorio, Rodrigo Urrego
Publikováno v:
Repositorio Institucional UDCA
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
SummaryBovine embryos produced in vivo and in vitro differ with respect to molecular profiles, including epigenetic marks and gene expression profiles. This study investigated the CpG methylation status in bovine testis satellite I (BTS) and Bos taur
Autor:
Klaus Gerd Hadeler, Thomas Haaf, Felix Mattern, Doris Herrmann, Sandra Milena Bernal-Ulloa, Heiner Niemann, Julia Heinzmann
Publikováno v:
Molecular Reproduction and Development. 83:802-814
Epigenetic changes are critical for the acquisition of developmental potential by oocytes and embryos, yet these changes may be sensitive to maternal ageing. Here, we investigated the impact of maternal ageing on DNA methylation and mRNA expression i
Autor:
Andrea Lucas-Hahn, Sandra Milena Bernal-Ulloa, Patrick Aldag, Heiner Niemann, Ulrich Baulain, Klaus-Gerd Hadeler, Doris Herrmann
Publikováno v:
Repositorio Institucional UDCA
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
Cryopreservation of in vitro produced bovine embryos is associated with significantly reduced survival rates, mainly due to insufficient quality of the embryos. Caffeine supplementation during IVM has been used to delay meiotic resumption and concomi
Autor:
Sylke Winkler, Heiner Niemann, Doris Herrmann, Dorit Pache, Patrick Aldag, Julia Heinzmann, Klaus Gerd Hadeler, Ulrich Baulain, Andrea Lucas-Hahn, Sandra Milena Bernal Ulloa
Publikováno v:
Reproduction in Domestic Animals. 50:1-77
Autor:
Felix, Mattern, Doris, Herrmann, Julia, Heinzmann, Klaus Gerd, Hadeler, Sandra Milena, Bernal-Ulloa, Thomas, Haaf, Heiner, Niemann
Publikováno v:
Molecular reproduction and development. 83(9)
Epigenetic changes are critical for the acquisition of developmental potential by oocytes and embryos, yet these changes may be sensitive to maternal ageing. Here, we investigated the impact of maternal ageing on DNA methylation and mRNA expression i
Autor:
Klaus-Gerd Hadeler, Dorit Pache, Sandra Milena Bernal-Ulloa, Sylke Winkler, Heiner Niemann, Andrea Lucas-Hahn, Patrick Aldag, Doris Herrmann, Julia Heinzmann, Ulrich Baulain
Publikováno v:
PLoS ONE, Vol 11, Iss 2, p e0150264 (2016)
PLoS ONE
Repositorio Institucional UDCA
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
PLoS ONE
Repositorio Institucional UDCA
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
High cAMP levels during in vitro maturation (IVM) have been related to improved blastocyst yields. Here, we employed the cAMP/cGMP modulators, forskolin, IBMX, and cilostamide, during IVM to unravel the role of high cAMP in early embryonic developmen
Autor:
Rudolf Großfeld, Mike Diederich, Julia Heinzmann, Sandra Milena Bernal Ulloa, Andrea Lucas-Hahn, Ulrich Baulain, Heiner Niemann, Bernd Timmermann, Doris Herrmann
Publikováno v:
Zygote
Repositorio Institucional UDCA
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
Repositorio Institucional UDCA
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
instacron:Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
SummaryCyclic adenosine monophosphate (cAMP) modulators have been used to avoid spontaneous oocyte maturation and concomitantly improve oocyte developmental competence. The current work evaluated the effects of the addition of cAMP modulators forskol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f4da43e2e4bc1de3222212363b0ec75
https://hdl.handle.net/11858/00-001M-0000-0027-A65C-011858/00-001M-0000-0027-A65A-3
https://hdl.handle.net/11858/00-001M-0000-0027-A65C-011858/00-001M-0000-0027-A65A-3
Autor:
Thomas Haaf, Patrick Aldag, Julia Heinzmann, Sandra Milena Bernal-Ulloa, Tamara Schneider, Felix Mattern, Heiner Niemann
Publikováno v:
Molecular human reproduction. 21(10)
To mimic post-ovulatory ageing, we have extended the in vitro maturation (IVM) phase to 48 h and examined effects on (i) developmental potential, (ii) expression of a panel of developmentally important genes and (iii) gene-specific epigenetic marks.
Autor:
Doris Herrmann, Julia Heinzmann, Ulrich Baulain, Andrea Lucas-Hahn, Patrick Aldag, Heiner Niemann, Klaus Gerd Hadeler, Sandra Milena Bernal Ulloa
Publikováno v:
Reproduction, Fertility and Development. 28:229
High cyclic adenosine monophosphate (cAMP) concentrations are critical for maintaining oocyte meiotic arrest in vivo. For in vitro maturation (IVM), the oocyte is released mechanically from the follicle, which induces a significant drop in intra-oocy