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Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...

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Related Experiment Video

Updated: Jun 17, 2026

Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation
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Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation

Published on: September 6, 2017

HLA-B27: what's new?

Nicholas J Sheehan1

  • 1Department of Rheumatology, City Care Centre, Thorpe Road, Peterborough PE3 6DB, UK. nick.sheehan@pbh-tr.nhs.uk

Rheumatology (Oxford, England)
|January 20, 2010
PubMed
Summary
This summary is machine-generated.

The Human Leukocyte Antigen B27 (HLA-B27) molecule is linked to Spondyloarthritis (SpA) and influences viral infections. Research explores its complex immunobiology, genetic associations, and clinical relevance in disease.

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Area of Science:

  • Immunology
  • Genetics
  • Medicine

Background:

  • The Human Leukocyte Antigen B27 (HLA-B27) molecule plays a critical role in immune responses.
  • Its association with Spondyloarthritis (SpA) and other diseases, alongside protective effects against infections, highlights its complex immunobiology.
  • Understanding HLA-B27's functions is crucial for unraveling disease pathogenesis and host defense mechanisms.

Purpose of the Study:

  • To explore the multifaceted roles of HLA-B27 in disease aetiopathogenesis and host defense.
  • To investigate the influence of HLA-B27 subtypes and genetic variations on disease expression.
  • To clarify the diagnostic, prognostic, and therapeutic implications of HLA-B27.

Main Methods:

  • Review of existing literature and animal studies on HLA-B27.
  • Analysis of structural and behavioral variations among HLA-B27 subtypes.
  • Investigation of genetic networks involving MHC and non-MHC genes influencing HLA-B27.

Main Results:

  • Subtle structural and behavioral differences in HLA-B27 subtypes correlate with SpA association.
  • Current hypotheses do not fully explain all observed actions of HLA-B27.
  • Evidence suggests HLA-B27 mitigates virulence in HIV and other viral infections.

Conclusions:

  • HLA-B27 offers insights into the interplay between heredity and disease.
  • Further research into genetic networks and haplotype linkages is needed to fully understand HLA-B27's clinical expression.
  • The role of HLA-B27 in disease diagnosis, prognosis, and management is becoming increasingly evident.