Related Experiment Video
Updated: Aug 2, 2026

26:48
Induction and Clinical Scoring of Chronic-Relapsing Experimental Autoimmune Encephalomyelitis
Published on: July 4, 2007
18.4K
Pediatric Autoimmune Encephalitis and Its Relationship With Infection
1Department of Pediatrics, Peking University People's Hospital, Beijing, P.R. China.
Pediatric Neurology
|May 8, 2021
Summary
Autoimmune encephalitis (AE) is a serious brain inflammation in children, often triggered by infections. Early diagnosis is key, as treatments like immunotherapy can improve outcomes for this neurological disorder.
Area of Science:
- Neurology
- Immunology
- Pediatrics
Background:
- Autoimmune encephalitis (AE) is an inflammatory central nervous system disorder.
- AE is increasingly recognized, particularly in children, and can cause developmental issues.
- Antibodies targeting neuronal antigens are characteristic of AE.
Purpose of the Study:
- To review the clinical features of pediatric autoimmune encephalitis.
- To explore the link between AE and post-infection status.
- To discuss potential mechanisms of infection-triggered AE.
Main Methods:
- Literature review focusing on pediatric autoimmune encephalitis.
- Analysis of clinical presentations and outcomes.
- Examination of proposed pathogenetic mechanisms.
Main Results:
- Infections are implicated in the development of AE, with cases of anti-NMDAR encephalitis following HSV encephalitis noted.
- Distinguishing AE from infectious encephalitis is crucial for timely treatment.
- AE is treatable with immunotherapies.
Conclusions:
- Infections may trigger autoimmune encephalitis through mechanisms like molecular mimicry and bystander activation.
- Understanding infection-triggered AE is vital for early diagnosis and management in children.
- Genetic susceptibility may also play a role in AE development.
More Related Videos
Related Concept Videos
Viral Meningitis
Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Arboviral Encephalitis
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
Bacterial Meningitis II: Pathophysiology
Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
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...
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...
Brain Abscess l: Introduction
A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...

