Biomaterial Database

Tyrosine phosphorylation is increased in the rat hippocampus during the status epilepticus induced by pilocarpine. 1998

M G Funke, and D Amado, and E A Cavalheiro, and M G Naffah-Mazzacoratti

Disciplina de Neurologia Experimental, Universidade Federal de São Paulo, SP, Brasil.

Phosphorylation of tyrosine residue in proteins is an important modulatory process for membrane transduction and cell signaling and for several cellular functions. The concentration and distribution of phosphotyrosine proteins were analyzed in the hippocampi of rats in the model of epilepsy induced by pilocarpine using Western blotting and immunohistochemistry. The concentration of several phosphotyrosine proteins increased during status epilepticus. During the seizure-free period and the chronic period of this epilepsy model, the hippocampi of rats did not exhibit changes in the expression of these proteins. Immunohistochemistry showed an increased immunoreactivity throughout the hippocampal formation of rats 1 h after status epilepticus that was acutely induced by pilocarpine. Animals killed after 3 h of status epilepticus showed an increased expression of phosphotyrosine in the hippocampal hilus and CA3 regions. After 5 h of status epilepticus, phosphotyrosine immunoreactivity persisted only in the CA3 region. After 12 h of status epilepticus, the hippocampal formation exhibited a normal phosphotyrosine immunostaining, showing that the increased expression of these proteins is related to the acute phase and that several intracellular events could undergo modifications during the status epilepticus induced by pilocarpine.

UI	MeSH Term	Description	Entries
D007150	Immunohistochemistry	Histochemical localization of immunoreactive substances using labeled antibodies as reagents.	Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008297	Male		Males
D010766	Phosphorylation	The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety.	Phosphorylations
D010862	Pilocarpine	A slowly hydrolyzed muscarinic agonist with no nicotinic effects. Pilocarpine is used as a miotic and in the treatment of glaucoma.	Isopilocarpine,Isoptocarpine,Ocusert,Pilocarpine Hydrochloride,Pilocarpine Mononitrate, (3S-cis)-Isomer,Pilocarpine Nitrate,Pilocarpine, Monohydrochloride, (3S-cis)-Isomer,Salagen,Hydrochloride, Pilocarpine,Nitrate, Pilocarpine
D011505	Protein-Tyrosine Kinases	Protein kinases that catalyze the PHOSPHORYLATION of TYROSINE residues in proteins with ATP or other nucleotides as phosphate donors.	Tyrosine Protein Kinase,Tyrosine-Specific Protein Kinase,Protein-Tyrosine Kinase,Tyrosine Kinase,Tyrosine Protein Kinases,Tyrosine-Specific Protein Kinases,Tyrosylprotein Kinase,Kinase, Protein-Tyrosine,Kinase, Tyrosine,Kinase, Tyrosine Protein,Kinase, Tyrosine-Specific Protein,Kinase, Tyrosylprotein,Kinases, Protein-Tyrosine,Kinases, Tyrosine Protein,Kinases, Tyrosine-Specific Protein,Protein Kinase, Tyrosine-Specific,Protein Kinases, Tyrosine,Protein Kinases, Tyrosine-Specific,Protein Tyrosine Kinase,Protein Tyrosine Kinases,Tyrosine Specific Protein Kinase,Tyrosine Specific Protein Kinases
D004195	Disease Models, Animal	Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.	Animal Disease Model,Animal Disease Models,Disease Model, Animal
D006624	Hippocampus	A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation.	Ammon Horn,Cornu Ammonis,Hippocampal Formation,Subiculum,Ammon's Horn,Hippocampus Proper,Ammons Horn,Formation, Hippocampal,Formations, Hippocampal,Hippocampal Formations,Hippocampus Propers,Horn, Ammon,Horn, Ammon's,Proper, Hippocampus,Propers, Hippocampus,Subiculums
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013226	Status Epilepticus	A prolonged seizure or seizures repeated frequently enough to prevent recovery between episodes occurring over a period of 20-30 minutes. The most common subtype is generalized tonic-clonic status epilepticus, a potentially fatal condition associated with neuronal injury and respiratory and metabolic dysfunction. Nonconvulsive forms include petit mal status and complex partial status, which may manifest as behavioral disturbances. Simple partial status epilepticus consists of persistent motor, sensory, or autonomic seizures that do not impair cognition (see also EPILEPSIA PARTIALIS CONTINUA). Subclinical status epilepticus generally refers to seizures occurring in an unresponsive or comatose individual in the absence of overt signs of seizure activity. (From N Engl J Med 1998 Apr 2;338(14):970-6; Neurologia 1997 Dec;12 Suppl 6:25-30)	Absence Status,Complex Partial Status Epilepticus,Generalized Convulsive Status Epilepticus,Non-Convulsive Status Epilepticus,Petit Mal Status,Simple Partial Status Epilepticus,Grand Mal Status Epilepticus,Status Epilepticus, Complex Partial,Status Epilepticus, Electrographic,Status Epilepticus, Generalized,Status Epilepticus, Generalized Convulsive,Status Epilepticus, Grand Mal,Status Epilepticus, Non-Convulsive,Status Epilepticus, Simple Partial,Status Epilepticus, Subclinical,Electrographic Status Epilepticus,Generalized Status Epilepticus,Non Convulsive Status Epilepticus,Status Epilepticus, Non Convulsive,Status, Absence,Status, Petit Mal,Subclinical Status Epilepticus
D015153	Blotting, Western	Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes.	Immunoblotting, Western,Western Blotting,Western Immunoblotting,Blot, Western,Immunoblot, Western,Western Blot,Western Immunoblot,Blots, Western,Blottings, Western,Immunoblots, Western,Immunoblottings, Western,Western Blots,Western Blottings,Western Immunoblots,Western Immunoblottings