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| http://purl.uniprot.org/citations/18845185 | http://www.w3.org/2000/01/rdf-schema#comment | "Developmental thyroid hormone (TH) deficiency leads to mental retardation and neurological deficits in humans. In this study, congenital hypothyroidism was induced in rats by adding 0.05% 6-propyl-2-thiouracil in the drinking water during gestation and suckling period. This treatment induced hyperphosphorylation of neurofilaments, the neuronal intermediate filament (IF) proteins, of heavy, medium and low molecular weight (NF-H, NF-M and NF-L, respectively) without altering the phosphorylation level of astrocyte IF proteins, glial fibrillary acidic protein (GFAP) and vimentin in cerebral cortex of rats. NF-H was hyperphosphorylated on KSP repeats in the carboxy-terminal tail domain. Furthermore, the immunocontent of GFAP and NF subunits was down-regulated, while vimentin was unaltered both in tissue homogenate and in cytoskeletal fraction of hypothyroid animals. Moreover, we verified the immunocontent of astrocyte glutamate/aspartate transporter (GLAST) and glutamate transporter-1 (GLT-1) as well as activation of mitogen-activated protein kinases (MAPKs) in hypothyroid rats. Results showed that hypothyroidism is associated with decreased GLAST and GLT-1 immunocontent. Additionally, we demonstrated increased extracellular signal-regulated kinase 1/2 (ERK1/2) phosphorylation without altering Jun N-terminal kinase (JNK) and p38(MAPK) phosphorylation. However, total JNK levels were down-regulated. Taken together, these results suggest that the thyroid status could modulate the integrity of neuronal cytoskeleton acting on the endogenous NF-associated phosphorylating system and that such effect could be related to glutamate-induced excitotoxicity, as well as ERK1/2 and JNK modulation. These events could be somehow related to the neurological dysfunction described in hypothyroidism."xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.org/dc/terms/identifier | "doi:10.1016/j.neuro.2008.09.004"xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/author | "Pessoa-Pureur R."xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/author | "Zamoner A."xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/author | "Heimfarth L."xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/date | "2008"xsd:gYear |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/name | "Neurotoxicology"xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/pages | "1092-1099"xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/title | "Congenital hypothyroidism is associated with intermediate filament misregulation, glutamate transporters down-regulation and MAPK activation in developing rat brain."xsd:string |
| http://purl.uniprot.org/citations/18845185 | http://purl.uniprot.org/core/volume | "29"xsd:string |
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