Inflammatory processes, febrile seizures, and subsequent epileptogenesis

ManKin Choy1, Céline M Dubé2, Markus Ehrengruber1

  • 1Department of Pediatrics, University of California-Irvine, Irvine, CA.

Epilepsy Currents
|June 24, 2014
PubMed

Insights

Inflammation may contribute to febrile seizures (FS) and subsequent epilepsy. Further research is needed to determine if inflammatory mediators cause epilepsy after prolonged febrile seizures or febrile status epilepticus (SE).

Area of Science:

  • Pediatric neurology
  • Neuroinflammation
  • Epileptogenesis

Background:

  • Febrile seizures (FS) are common in young children and are linked to fever.
  • Inflammatory mediators, triggers of fever, may also contribute to FS onset.
  • Inflammation is observed post-FS and in epilepsy, suggesting a role in epileptogenesis.

Purpose of the Study:

  • To review current knowledge on inflammation's role in FS and epileptogenesis.
  • To identify gaps in understanding the link between prolonged FS/febrile status epilepticus (SE) and epilepsy.
  • To explore inflammation's potential as a basis for biomarkers and therapies for FS-induced epileptogenesis.

Main Methods:

  • Review of existing literature on febrile seizures, inflammation, and epilepsy.
  • Focus on four key questions regarding inflammation's role.
  • Analysis of the potential for inflammation to drive epileptogenesis following prolonged FS or SE.

Main Results:

  • Evidence suggests inflammation contributes to FS generation.
  • The role of prolonged FS or SE in causing temporal lobe epilepsy without predisposing factors requires further investigation.
  • Inflammation's contribution to febrile SE-induced limbic epilepsy is not fully determined.

Conclusions:

  • Inflammation is implicated in FS and may influence epileptogenesis.
  • Further research is crucial to understand if prolonged FS or SE leads to epilepsy.
  • Inflammation may offer potential for developing biomarkers and therapies for FS-induced epileptogenesis.

Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

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...
1.7K
Seizures l: Introduction01:20

Seizures l: Introduction

Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
36
Seizures: Classification01:13

Seizures: Classification

Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
2.5K
Encephalitis ll: Pathophysiology01:26

Encephalitis ll: Pathophysiology

Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
18
Encephalitis l: Introduction01:19

Encephalitis l: Introduction

Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
11
Increased Body Temperature01:25

Increased Body Temperature

A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
6.4K