[Human herpesvirus-8 DNA in patients with certain demyelinating disorders]

Ali Ilgin Olut1, Haluk Ozünlü, Ersin Tan

  • 1Tepecik SSK Eğitim ve Araştirma Hastanesi, infeksiyon Hastaliklari Kliniği, Izmir.

Mikrobiyoloji Bulteni
|September 1, 2005
PubMed

Insights

Human herpesvirus-8 (HHV-8) DNA was detected in some patients with demyelinating diseases like multiple sclerosis and Guillain-Barre syndrome. This suggests a potential link requiring further investigation in larger studies.

Area of Science:

  • Neuroimmunology
  • Virology
  • Infectious Diseases

Context:

  • Demyelinating diseases, such as multiple sclerosis (MS), chronic inflammatory demyelinizing polyneuropathy (CIDP), Guillain-Barre syndrome (GBS), and Miller-Fisher syndrome, represent a significant area of neurological research.
  • Herpesviruses are implicated due to their neurotropic nature, latency, and potential to induce demyelination.

Purpose:

  • To investigate a potential association between Human herpesvirus-8 (HHV-8) infection and specific demyelinating neurological conditions.
  • To determine the presence of HHV-8 DNA in patients diagnosed with MS, CIDP, GBS, and Miller-Fisher syndrome.

Summary:

  • Polymerase chain reaction (PCR) was used to detect HHV-8 DNA in blood samples from 14 MS, 6 CIDP, 3 GBS, and 1 Miller-Fisher syndrome patient.
  • HHV-8 DNA was found in one MS, two CIDP, and all three GBS patients, while all 24 healthy controls tested negative.
  • The study highlights a potential correlation, though the small sample size necessitates caution in interpretation.

Impact:

  • This preliminary research indicates a possible role for HHV-8 in the pathogenesis of certain demyelinating diseases.
  • The findings underscore the necessity for larger, comprehensive studies to validate the association and explore the mechanisms of HHV-8 in demyelination.
  • This work opens avenues for future research into viral etiologies of neurological disorders.

Related Concept Videos

Herpes01:28

Herpes

Herpes simplex type 1 (HSV‑1) is a widespread pathogen responsible for orolabial lesions. It is an enveloped, double-stranded DNA (dsDNA) virus belonging to the family Herpesviridae. Once the virus infects a host cell, its double‑stranded DNA genome is delivered into the nucleus, where a coordinated cascade of immediate‑early, early, and late gene expression directs viral DNA replication, structural protein synthesis, and virion assembly. After primary infection of epithelial cells, HSV-1...
Genital Herpes01:23

Genital Herpes

Genital herpes is a sexually transmitted infection primarily caused by herpes simplex virus type 2 (HSV-2), though herpes simplex virus type 1 (HSV-1) is increasingly implicated in genital infections, particularly among younger populations. Transmission occurs mainly through sexual contact, with asymptomatic viral shedding serving as a major route of spread. This characteristic makes HSV-2 difficult to control at a population level, as individuals may unknowingly transmit the virus even in the...
Cytomegalovirus Disease01:27

Cytomegalovirus Disease

Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...
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...
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...