Abstract:
:The interaction of Mesial Temporal Lobe Epilepsy (mTLE) with the circadian system control is apparent from an oscillatory pattern of limbic seizures, daytime's effect on seizure onset and the efficacy of antiepileptic drugs. Moreover, seizures per se can interfere with the biological rhythm output, including circadian oscillation of body temperature, locomotor activity, EEG pattern as well as the transcriptome. However, the molecular mechanisms underlying this cross-talk remain unclear. In this study, we systematically evaluated the temporal expression of seven core circadian transcripts (Bmal1, Clock, Cry1, Cry2, Per1, Per2, and Per3) and the spontaneous locomotor activity (SLA) in post-status epilepticus (SE) model of mTLE. Twenty-four hour oscillating SLA remained intact in post-SE groups although the circadian phase and the amount and intensity of activity were changed in early post-SE and epileptic phases. The acrophase of the SLA rhythm was delayed during epileptogenesis, a fragmented 24 h rhythmicity and extended active phase length appeared in the epileptic phase. The temporal expression of circadian transcripts Bmal1, Cry1, Cry2, Per1, Per2, and Per3 was also substantially altered. The oscillatory expression of Bmal1 was maintained in rats imperiled to SE, but with lower amplitude (A = 0.2) and an advanced acrophase in the epileptic phase. The diurnal rhythm of Cry1 and Cry2 was absent in the early post-SE but was recovered in the epileptic phase. Per1 and Per2 rhythmic expression were disrupted in post-SE groups while Per3 presented an arrhythmic profile in the epileptic phase, only. The expression of Clock did not display rhythmic pattern in any condition. These oscillating patterns of core clock genes may contribute to hippocampal 24 h cycling and, consequently to seizure periodicity. Furthermore, by using a pool of samples collected at 6 different Zeitgeber Times (ZT), we found that all clock transcripts were significantly dysregulated after SE induction, except Per3 and Per2. Collectively, altered SLA rhythm in early post-SE and epileptic phases implies a possible role for seizure as a nonphotic cue, which is likely linked to activation of hippocampal-accumbens pathway. On the other hand, altered temporal expression of the clock genes after SE suggests their involvement in the MTLE.
journal_name
Front Neuroljournal_title
Frontiers in neurologyauthors
Matos HC,Koike BDV,Pereira WDS,de Andrade TG,Castro OW,Duzzioni M,Kodali M,Leite JP,Shetty AK,Gitaí DLGdoi
10.3389/fneur.2018.00632subject
Has Abstractpub_date
2018-08-02 00:00:00pages
632issn
1664-2295journal_volume
9pub_type
杂志文章abstract::[This corrects the article DOI: 10.3389/fneur.2018.00184.]. ...
journal_title:Frontiers in neurology
pub_type: 杂志文章,已发布勘误
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abstract:BACKGROUND:Amnestic mild cognitive impairment (aMCI) is considered to be the transitional stage between healthy aging and Alzheimer's disease (AD). Moreover, aMCI individuals with additional impairment in one or more non-memory cognitive domains are at higher risk of conversion to AD. Hence accurate identification of t...
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pub_type: 杂志文章
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abstract::[This corrects the article DOI: 10.3389/fneur.2018.01033.]. ...
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pub_type: 杂志文章
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2014.00047
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journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00236
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abstract:Objective:To investigate the correlation between initial response to antiepileptic drugs (AEDs) and long-term outcomes after 3 years in patients with newly diagnosed epilepsy. Methods:This prospective study included 204 patients with newly diagnosed epilepsy, who were followed-up for at least 36 months. The long-term ...
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doi:10.3389/fneur.2019.01361
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doi:10.3389/fneur.2019.00290
更新日期:2019-03-28 00:00:00
abstract:BACKGROUND AND PURPOSE:The pathogenesis of spontaneous cervical artery dissections (sCAD) and its best medical treatment are debated. This may be due to a lack of clear classification of sCAD. We propose the new Borgess classification of sCAD, based on the presence or absence of intimal tear as depicted on imaging stud...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2013.00133
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journal_title:Frontiers in neurology
pub_type: 杂志文章
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2013.00170
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abstract::Introduction: Traumatic brain injury (TBI) is a global epidemic. The incidence of TBI in low and middle-income countries (LMICs) is three times greater than in high-income countries (HICs). Decompressive craniectomy (DC) is a surgical procedure to reduce intracranial pressure (ICP) and prevent secondary injury. Multip...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
doi:10.3389/fneur.2020.00047
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abstract::Objective: To investigate the dynamic amplitude of low-frequency fluctuations (dALFFs) in patients with Parkinson's disease (PD) and healthy controls (HCs) and further explore whether dALFF can be used to test the feasibility of differentiating PD from HCs. Methods: Twenty-eight patients with PD and 28 demographically...
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