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Changes in insulin-...
Changes in insulin-like growth factor 1 receptor density after transient cerebral ischemia in the rat : Lack of protection against ischemic brain damage following injection of insulin-like growth factor 1
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- Bergstedt, K. (author)
- Skåne University Hospital,Lund University
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- Wieloch, T. (author)
- Lund University,Lunds universitet,Laboratory for Experimental Brain Research,Forskargrupper vid Lunds universitet,Lund University Research Groups,Skåne University Hospital
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(creator_code:org_t)
- 2016-06-28
- 1993
- English 4 s.
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In: Journal of Cerebral Blood Flow and Metabolism. - : SAGE Publications. - 0271-678X .- 1559-7016. ; 13:5, s. 895-898
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Abstract
Subject headings
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- Binding of 125I-insulin-like growth factor-1 (125I-IGF-1) to rat brain slices was studied after 15 min of two-vessel occlusion ischemia and 1 h to 4 days of recirculation. Ligand binding in the hippocampus increased at 6 h post ischemia in the CA1 and CA3 regions and the dentate gyrus, suggesting that the IGF-1 receptors were up-regulated, while no change was seen in neocortex and striatum. Intracerebroventricular injections of IGF-1 (2 μg) prior to and after transient cerebral ischemia did not reduce neuronal damage. The increased up-regulation on IGF-1 receptors and the absence of neuroprotection by IGF-1 suggest that the intracellular signal transduction chain activated by the IGF-1 receptor may be interrupted.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Keyword
- Cerebral ischemia
- Insulin-like growth factor 1
- Neuronal damage
- Protein synthesis
Publication and Content Type
- art (subject category)
- ref (subject category)
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