Inflammatory cytokines and related genes are induced in the rat hippocampus by limbic status epilepticus.
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| Title: | Inflammatory cytokines and related genes are induced in the rat hippocampus by limbic status epilepticus. |
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| Authors: | De Simoni, Maria Grazia (AUTHOR), Perego, Carlo (AUTHOR), Ravizza, Teresa (AUTHOR), Moneta, Daniela (AUTHOR), Conti, Mirko (AUTHOR), Marchesi, Francesco (AUTHOR), De Luigi, Ada (AUTHOR), Garattini, Silvio (AUTHOR), Vezzani, Annamaria (AUTHOR) |
| Source: | European Journal of Neuroscience. Jul2000, Vol. 12 Issue 7, p2623-2633. 11p. 2 Charts. |
| Subjects: | Cytokines, Hippocampus (Brain) |
| Abstract: | AbstractLimbic status epilepticus was induced in rats by unilateral 60-min electrical stimulation of the CA3 region of the ventral hippocampus. As assessed by RT-PCR followed by Southern blot analysis, transcripts of interleukin-1β, interleukin-6, interleukin-1 receptor antagonist and inducible nitric oxide synthase were significantly increased 2 h after status epilepticus in the stimulated hippocampus. Induction was maximal at 6 h for interleukin-1β (445%), interleukin-6 (405%) and tumour necrosis factor-α (264%) and at 24 h for interleukin-1 receptor antagonist (494%) and inducible nitric oxide synthase (432%). In rats with spontaneous seizures (60 days after status epilepticus), interleukin-1β mRNA was still higher than controls (241%). Immunocytochemical staining of interleukin-1β, interleukin-6 and tumour necrosis factor-α was enhanced in glia with a time-course similar to that of the respective transcripts. Sixty days after status epilepticus, interleukin-1β immunoreactivity was increased exclusively in neurons in one third of the animals. Multiple intracerebroventricular injections of interleukin-1 receptor antagonist (0.5 μg/3 μL) significantly decreased the severity of behavioural convulsions during electrical stimulation and selectively reduced tumour necrosis factor-α content in the hippocampus measured 18 h after status epilepticus. Thus, the induction of spontaneously recurring seizures in rats involves the activation of inflammatory cytokines and related pro- and anti-inflammatory genes in the hippocampus. These changes may play an active role in hyperexcitability of the epileptic tissue. [ABSTRACT FROM AUTHOR] |
| Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 5184846 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Inflammatory cytokines and related genes are induced in the rat hippocampus by limbic status epilepticus. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22De+Simoni%2C+Maria+Grazia%22">De Simoni, Maria Grazia</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Perego%2C+Carlo%22">Perego, Carlo</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ravizza%2C+Teresa%22">Ravizza, Teresa</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moneta%2C+Daniela%22">Moneta, Daniela</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Conti%2C+Mirko%22">Conti, Mirko</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Marchesi%2C+Francesco%22">Marchesi, Francesco</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22De+Luigi%2C+Ada%22">De Luigi, Ada</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Garattini%2C+Silvio%22">Garattini, Silvio</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vezzani%2C+Annamaria%22">Vezzani, Annamaria</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Journal+of+Neuroscience%22">European Journal of Neuroscience</searchLink>. Jul2000, Vol. 12 Issue 7, p2623-2633. 11p. 2 Charts. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cytokines%22">Cytokines</searchLink><br /><searchLink fieldCode="DE" term="%22Hippocampus+%28Brain%29%22">Hippocampus (Brain)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: AbstractLimbic status epilepticus was induced in rats by unilateral 60-min electrical stimulation of the CA3 region of the ventral hippocampus. As assessed by RT-PCR followed by Southern blot analysis, transcripts of interleukin-1β, interleukin-6, interleukin-1 receptor antagonist and inducible nitric oxide synthase were significantly increased 2 h after status epilepticus in the stimulated hippocampus. Induction was maximal at 6 h for interleukin-1β (445%), interleukin-6 (405%) and tumour necrosis factor-α (264%) and at 24 h for interleukin-1 receptor antagonist (494%) and inducible nitric oxide synthase (432%). In rats with spontaneous seizures (60 days after status epilepticus), interleukin-1β mRNA was still higher than controls (241%). Immunocytochemical staining of interleukin-1β, interleukin-6 and tumour necrosis factor-α was enhanced in glia with a time-course similar to that of the respective transcripts. Sixty days after status epilepticus, interleukin-1β immunoreactivity was increased exclusively in neurons in one third of the animals. Multiple intracerebroventricular injections of interleukin-1 receptor antagonist (0.5 μg/3 μL) significantly decreased the severity of behavioural convulsions during electrical stimulation and selectively reduced tumour necrosis factor-α content in the hippocampus measured 18 h after status epilepticus. Thus, the induction of spontaneously recurring seizures in rats involves the activation of inflammatory cytokines and related pro- and anti-inflammatory genes in the hippocampus. These changes may play an active role in hyperexcitability of the epileptic tissue. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1046/j.1460-9568.2000.00140.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 2623 Subjects: – SubjectFull: Cytokines Type: general – SubjectFull: Hippocampus (Brain) Type: general Titles: – TitleFull: Inflammatory cytokines and related genes are induced in the rat hippocampus by limbic status epilepticus. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: De Simoni, Maria Grazia – PersonEntity: Name: NameFull: Perego, Carlo – PersonEntity: Name: NameFull: Ravizza, Teresa – PersonEntity: Name: NameFull: Moneta, Daniela – PersonEntity: Name: NameFull: Conti, Mirko – PersonEntity: Name: NameFull: Marchesi, Francesco – PersonEntity: Name: NameFull: De Luigi, Ada – PersonEntity: Name: NameFull: Garattini, Silvio – PersonEntity: Name: NameFull: Vezzani, Annamaria IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2000 Type: published Y: 2000 Identifiers: – Type: issn-print Value: 0953816X Numbering: – Type: volume Value: 12 – Type: issue Value: 7 Titles: – TitleFull: European Journal of Neuroscience Type: main |
| ResultId | 1 |