NDLI: Expression levels of mRNA for insulin-like growth factors 1 and 2, IGF receptors and IGF binding proteins in in vivo and in vitro grown bovine follicles.

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Expression levels of mRNA for insulin-like growth factors 1 and 2, IGF receptors and IGF binding proteins in in vivo and in vitro grown bovine follicles.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Rebouças, Emanuela L. Costa, José J. N. Passos, Maria J. Silva, Anderson W. B. Rossi, Rodrigo O. D. S. Van Den Hurk, Robert Silva, José R. V.
Description	Country affiliation: Brazil Author Affiliation: Rebouças EL ( Biotechnology Nucleus of Sobral - NUBIS,Federal University of Ceara,Sobral,CE,Brazil.); Costa JJ ( Biotechnology Nucleus of Sobral - NUBIS,Federal University of Ceara,Sobral,CE,Brazil.); Passos MJ ( Biotechnology Nucleus of Sobral - NUBIS,Federal University of Ceara,Sobral,CE,Brazil.); Silva AW ( Biotechnology Nucleus of Sobral - NUBIS,Federal University of Ceara,Sobral,CE,Brazil.); Rossi RO ( Biotechnology Nucleus of Sobral - NUBIS,Federal University of Ceara,Sobral,CE,Brazil.); van den Hurk R ( Department of Pathobiology,Faculty of Veterinary Medicine,Utrecht University,Utrecht,The Netherlands.); Silva JR ( Biotechnology Nucleus of Sobral-NUBIS,Federal University of Ceara,Rua Comandante Maurocélio Rocha Pontes 100,CEP 62042-280,Sobral,CE,Brazil.)
Abstract	This study investigated mRNA levels for insulin-like growth factors (IGFs) IGF1 (IGF-I) and IGF2 (IGF-II), IGF receptors (IGF1R and IGF2R), and binding proteins (IGFBP-1, IGFBP-2. IGFBP-3, IGFBP-4, IGFBP-5 and IGFBP-6) in bovine follicles of 0.2, 0.5 or 1.0 mm in diameter. mRNA expression levels in in vitro cultured follicles that reached approximately 0.5 mm were compared with that of in vivo grown follicles. IGF1R and IGF2R expression levels in 0.5 mm in vivo follicles were higher than in 1.0 or 0.2 mm follicles, respectively. IGFBP-1, IGFBP-2. IGFBP-3, IGFBP-4, IGFBP-5 and IGFBP-6 showed variable expression in the follicular size classes analyzed. In vitro grown follicles had significantly reduced expression levels for IGF1, IGF1R, IGFBP-3, IGFBP-5 and IGFBP-6 mRNA when compared with 0.2 mm follicles, but, when compared with in vivo grown follicles (0.5 mm), only IGFBP-1, IGFBP-2, IGFBP-3 and IGFBP-6 showed a reduction in their expression. In conclusion, IGFs, their receptors and IGFBPs showed variable expression of mRNA levels in the follicular size classes analyzed.
File Format	HTM / HTML
ISSN	09671994
Issue Number	4
Volume Number	22
e-ISSN	14698730
Journal	Zygote
Language	English
Publisher	Cambridge University Press
Publisher Date	2014-11-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Embryology Insulin-like Growth Factor Binding Proteins Genetics Insulin-like Growth Factor Ii Insulin-like Growth Factor I Ovarian Follicle Physiology Receptors, Somatomedin Animals Cattle Female Gene Expression Regulation Insulin-like Growth Factor Binding Protein 1 Insulin-like Growth Factor Binding Protein 3 Insulin-like Growth Factor Binding Protein 4 Insulin-like Growth Factor Binding Protein 5 Insulin-like Growth Factor Binding Protein 6 Cytology Rna, Messenger Receptor, Igf Type 2 Tissue Culture Techniques Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Cell Biology Developmental Biology

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Expression of insulin-like growth factor (IGF), IGF receptor, and IGF-binding protein messenger ribonucleic acids in luteinized granulosa cells from different size follicles after controlled ovarian hyperstimulation.

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Seasonal effects on the response of ovarian follicles to IGF1 in mares.

Modulating peripheral gonadotrophin levels affects follicular expression of mRNAs encoding insulin-like growth factor binding proteins in sheep.

Stability of housekeeping genes and expression of locally produced growth factors and hormone receptors in goat preantral follicles.

The effect of IGF-1 and FSH on the in vitro development of caprine secondary follicles and on the IGF-1, IGFR-I and FSHR mRNA levels.

Negative energy balance in dairy cows is associated with specific changes in IGF-binding protein expression in the oviduct.

The role of IGFs in the regulation of ovarian follicular growth in the brushtail possum (Trichosurus vulpecula).

Expression levels of mRNA for insulin-like growth factors 1 and 2, IGF receptors and IGF binding proteins in in vivo and in vitro grown bovine follicles.

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Expression of insulin-like growth factor (IGF), IGF receptor, and IGF-binding protein messenger ribonucleic acids in luteinized granulosa cells from different size follicles after controlled ovarian hyperstimulation.

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Expression levels of mRNA for insulin-like growth factors 1 and 2, IGF receptors and IGF binding proteins in in vivo and in vitro grown bovine follicles.