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Related Concept Videos

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Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
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γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
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Decrease of Cellular Communication Network Factor 1 (CCN1) Attenuates PTZ-Kindled Epilepsy in Mice.

Yiwei Liao1,2, Sha Huang2,3,4, Yuhu Zhang5

  • 1Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, 410008, China.

Cellular and Molecular Neurobiology
|October 21, 2023
PubMed
Summary
This summary is machine-generated.

Communication network factor 1 (CCN1) is elevated in epilepsy and contributes to seizure pathogenesis. Reducing CCN1 protects the brain by decreasing neuronal apoptosis and oxidative stress, offering potential therapeutic targets for epilepsy.

Keywords:
CCN1EpilepsyMyocardial injuryOxidative stressPTZ

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Pathology

Background:

  • Epileptogenesis involves complex molecular mechanisms.
  • Communication network factor 1 (CCN1) role in epilepsy is not fully understood.
  • Identifying novel therapeutic targets for epilepsy is crucial.

Purpose of the Study:

  • To elucidate the molecular mechanism of CCN1 in pentylenetetrazol (PTZ)-induced epileptogenesis.
  • To deepen the understanding of epilepsy seizure pathogenesis.
  • To identify potential drug targets for clinical prevention and treatment of epilepsy.

Main Methods:

  • Analysis of differentially expressed genes (DEGs) from microarray datasets (GSE47516, GSE88992) using GEO2R.
  • Pathway enrichment and protein-protein interaction (PPI) network analysis via Metascape.
  • qRT-PCR and immunohistochemistry (IHC) on human epilepsy and control brain tissues.
  • Establishment and verification of a PTZ-induced epilepsy mouse model.
  • Hematoxylin and eosin (HE) staining for neuronal morphology.
  • qRT-PCR for apoptosis-related genes (Bax, Caspase-3, Bcl2).
  • TUNEL staining for neuronal apoptosis.
  • Biochemical assays for myocardial enzymes, GSH, MDA, and ROS.

Main Results:

  • CCN1 expression was significantly increased in epilepsy brain tissues.
  • Decreasing CCN1 prolonged seizure incubation and reduced seizure duration in a PTZ-induced epilepsy model.
  • CCN1 silencing reduced neuronal damage and apoptosis, decreasing pro-apoptotic proteins (Bax, Caspase-3) and increasing anti-apoptotic protein (Bcl2).
  • Reduced CCN1 levels decreased myocardial injury markers (CK, CK-MB), myocardial hemorrhage, and alleviated oxidative stress in hippocampal and myocardial tissues.
  • CCN1 reduction protected brain tissue by attenuating oxidative stress and inhibiting neuronal apoptosis, likely via the Nrf2/HO-1 pathway.

Conclusions:

  • CCN1 is upregulated in epilepsy and plays a critical role in PTZ-induced epileptogenesis.
  • Downregulation of CCN1 demonstrates neuroprotective effects by inhibiting apoptosis and oxidative stress.
  • CCN1 represents a promising therapeutic target for epilepsy treatment.