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Effects of different oocyte retrieval and in vitro maturation systems on bovine embryo development and quality.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Ulloa, Sandra Milena Bernal Heinzmann, Julia Herrmann, Doris Timmermann, Bernd Baulain, Ulrich Großfeld, Rudolf Diederich, Mike Lucas-Hahn, Andrea Niemann, Heiner
Description	Country affiliation: Germany Author Affiliation: Ulloa SM ( Institute of Farm Animal Genetics,Biotechnology,Friedrich-Loeffler-Institut (FLI),Mariensee,Neustadt,Germany.); Heinzmann J ( Institute of Farm Animal Genetics,Biotechnology,Friedrich-Loeffler-Institut (FLI),Mariensee,Neustadt,Germany.); Herrmann D ( Institute of Farm Animal Genetics,Biotechnology,Friedrich-Loeffler-Institut (FLI),Mariensee,Neustadt,Germany.); Timmermann B ( Max Planck Institute for Molecular Genetics,Ihnestraße 63-73,14195,Berlin,Germany.); Baulain U ( Institute of Farm Animal Genetics,Biotechnology,Friedrich-Loeffler-Institut (FLI),Mariensee,Neustadt,Germany.); Großfeld R ( Minitube GmbH Hauptstrasse 41,Tiefenbach,Germany.); Diederich M ( Weser-Ems-Union eG,Aussenstelle Rodenkirchen,Bullenmutterstation,Mittenfelder Weg 11,26935 Rodenkirchen,Germany.); Lucas-Hahn A ( Institute of Farm Animal Genetics,Biotechnology,Friedrich-Loeffler-Institut (FLI),Mariensee,Neustadt,Germany.); Niemann H ( Institute of Farm Animal Genetics,Biotechnology,Friedrich-Loeffler-Institut (FLI),Mariensee,Höltystraße 10,Mariensee,31535 Neustadt,Germany.)
Abstract	Cyclic 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 forskolin, 3-isobutyl-1-methylxanthine (IBMX) and cilostamide during in vitro maturation on the quality and yields of blastocysts. The following experimental groups were evaluated: (i) slicing or (ii) aspiration and maturation in tissue culture medium (TCM)199 for 24 h (TCM24slicing and TCM24aspiration, respectively), (iii) aspiration and maturation in the presence of cAMP modulators for 30 h (cAMP30aspiration) and in vivo-produced blastocysts. In vitro-matured oocytes were fertilized and presumptive zygotes were cultured in vitro to assess embryo development. Cleavage, blastocyst formation, blastocyst cell number, mRNA abundance of selected genes and global methylation profiles were evaluated. Blastocyst rate/zygotes for the TCM24aspiration protocol was improved (32.2 ± 2.1%) compared with TCM24slicing and cAMP30aspiration (23.4 ± 1.2% and 23.3 ± 2.0%, respectively, P 0.05), while those from the other groups were significantly elevated. It is concluded that retrieval, collection systems and addition of cAMP modulators can affect oocyte developmental competence, which is reflected not only in blastocyst rates but also in global DNA methylation and gene expression patterns.
File Format	HTM / HTML
ISSN	09671994
Issue Number	3
Volume Number	23
e-ISSN	14698730
Journal	Zygote
Language	English
Publisher	Cambridge University Press
Publisher Date	2015-06-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Embryology Blastocyst Physiology Culture Media Pharmacology In Vitro Oocyte Maturation Techniques Methods Oocyte Retrieval 1-methyl-3-isobutylxanthine Animals Cattle Colforsin Chemistry Dna Methylation Female Fertilization In Vitro Gene Expression Regulation, Developmental Male Quinolones Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Cell Biology Developmental Biology

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Effects of different oocyte retrieval and in vitro maturation systems on bovine embryo development and quality.

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