investigation on the expression of igf-i protein in insulin-resistant rat brain
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Investigation on the Levels of IGF-I Receptor and IGF-I Binding Protein I in the Brain of Insulin Resistant Rats
Abstract Introduction: There is limited knowledge available on the metabolism of glucose in the brain, an insulin insensitive organ. Insulin receptors hybridize with insulin like growth factor receptor (IGF-I) to transduce the signals in different areas of the brain. In this article we aimed at investigating whether the expression of IGF-I receptor and IGF-I binding proteins (IGFBP1) is change...
متن کاملinvestigation on the levels of igf-i receptor and igf-i binding protein i in the brain of insulin resistant rats
abstract introduction: there is limited knowledge available on the metabolism of glucose in the brain, an insulin insensitive organ. insulin receptors hybridize with insulin like growth factor receptor (igf-i) to transduce the signals in different areas of the brain. in this article we aimed at investigating whether the expression of igf-i receptor and igf-i binding proteins (igfbp1) is changed...
متن کاملInsulin-like growth factor I (IGF-I) regulates IGF binding protein-5 gene expression in the brain.
Insulin-like growth factor (IGF-I) plays an important role during brain development. IGF binding protein-5 (IGFBP-5) is known to be capable of modulating IGF-I actions and is expressed in brain during development. To begin to investigate the interaction between IGF-I and IGFBP-5 in brain, we asked whether IGF-I influences the brain expression of IGFBP-5. We quantified IGFBP-5 expression in mult...
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In vivo actions of insulin-like growth factor-I (IGF-I) on brain myelination: studies of IGF-I and IGF binding protein-1 (IGFBP-1) transgenic mice.
To study the effects and mechanisms of insulin-like growth factor I (IGF-I) on brain myelination in vivo, the morphology of myelinated axons and the expression of myelin specific protein genes have been examined in transgenic (Tg) mice that overexpress IGF-I and that those ectopically express IGF binding protein-1 (IGFBP-1), a protein that inhibits IGF-I actions when present in molar excess. Ou...
متن کاملCorrelation between insulin-like growth factor (IGF)-binding protein 5 and IGF-I gene expression during brain development.
Insulin-like growth factor (IGF)-binding proteins (IGFBPs) potently modulate the interactions of IGF-I and -II with the IGF-I receptor. Previous studies have shown that IGFBP2 gene expression is localized in astroglia, where it is anatomically and temporally coordinated with neuronal IGF-I expression during postnatal brain development. The present study shows that IGFBP5 gene expression is also...
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عنوان ژورنال:
international journal of endocrinology and metabolismجلد ۸، شماره ۳، صفحات ۱۳۸-۱۴۲
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