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Related Concept Videos

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...
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...
Postsynaptic Potential (PSP)01:32

Postsynaptic Potential (PSP)

Postsynaptic potential (PSP) refers to a change in the electrical potential of a neuron when neurotransmitters released by presynaptic neurons bind to postsynaptic receptors. This potential can either be excitatory, leading to depolarization and ultimately action potential generation, or inhibitory, leading to hyperpolarization and suppression of the postsynaptic neuron.
There are two types of receptors: ionotropic and metabotropic.
The ionotropic receptor is the membrane protein that has an...
Viral Meningitis01:18

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...
Bacterial Meningitis II: Pathophysiology01:26

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...
Arboviral Encephalitis01:25

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...

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Iris Fixation via External Pentagram Suturing
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[Subacute sclerosing panencephalitis (SSPE)].

Mitsuaki Hosoya1

  • 1Department of Pediatrics, Fukushima Medical University.

Rinsho Shinkeigaku = Clinical Neurology
|January 27, 2012
PubMed
Summary
This summary is machine-generated.

Ribavirin shows potent antiviral activity against Subacute Sclerosing Panencephalitis (SSPE) virus. Early trials suggest ribavirin therapy may offer clinical benefits for SSPE patients, warranting further investigation.

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Area of Science:

  • Virology and Neurology
  • Central Nervous System Disorders
  • Antiviral Therapeutics

Context:

  • Subacute sclerosing panencephalitis (SSPE) is a fatal, progressive neurological disease caused by persistent SSPE virus infection.
  • Previous treatments like inosine pranobex and interferon-alpha have shown limited efficacy.
  • The need for effective antiviral strategies against SSPE virus is critical.

Purpose:

  • To identify antiviral compounds with inhibitory effects against SSPE virus strains.
  • To evaluate the in vitro and in vivo efficacy of potential antiviral agents.
  • To assess the preliminary clinical effectiveness of ribavirin in treating SSPE patients.

Summary:

  • Ribavirin demonstrated potent inhibitory activity against SSPE virus in vitro and in vivo.
  • A treatment regimen involving high-dose intravenous and intraventricular ribavirin was administered to SSPE patients.
  • Preliminary observations suggest ribavirin therapy may positively influence the clinical course of SSPE.

Impact:

  • Identifies ribavirin as a promising antiviral agent for SSPE.
  • Highlights the potential of ribavirin therapy for managing SSPE.
  • Emphasizes the necessity for large-scale clinical trials to confirm ribavirin's efficacy in SSPE treatment.