Hepatitis C virus genotypes and subtypes in patients with hepatitis C, with and without cryoglobulinemia

J Hepatol. 1996 Oct;25(4):427-32. doi: 10.1016/s0168-8278(96)80200-5.


Background/aims: Recent reports have shown a high frequency of anti-hepatitis C virus antibodies in patients with cryoglobulinemia. The factors involved in the production of cryoglobulins in hepatitis C virus-infected patients are unknown. To assess the role of hepatitis C virus genotypes in the pathogenesis of mixed cryoglobulinemia, we analyzed their prevalence in a group of 118 hepatitis C virus-infected patients according to the presence or absence of cryoglobulins.

Methods: The hepatitis C virus genome was typed using the Line Probe Assay (LiPA, Innogenetics), for the most common genotypes (1a, 1b, 2a, 2b, 3, 4 or 5).

Results: Cryoglobulinemia was diagnosed in 60 (51%) patients, 33 (55%) of whom had type II and 27 (45%) type III cryoglobulins. Forty-four (37%) patients had no cryoglobulinemia and 14 (12%) patients had transient cryoglobulins. Cryoglobulins were significantly less prevalent in patients infected by genotype 1a. We found no statistical link between the hepatitis C virus genotype and the presence of symptomatic cryoglobulinemia, or the hepatitis C virus genotype and the type (II or III) of cryoglobulin. Interestingly, all six patients infected by hepatitis C virus genotype 4 or 5 had cryoglobulins.

Conclusions: In patients with hepatitis C virus infection, cryoglobulinemia is not strongly associated with a particular HCV genotype or subtype. The mechanism by which cryoglobulins are produced remains to be elucidated.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Blotting, Western
  • Cryoglobulinemia / blood
  • Cryoglobulinemia / virology*
  • Cryoglobulins / analysis
  • Female
  • Genome, Viral*
  • Genotype
  • Hepacivirus / genetics*
  • Hepatitis C / blood
  • Hepatitis C / complications*
  • Humans
  • Male
  • Middle Aged
  • Oligonucleotide Probes / chemistry
  • Polymerase Chain Reaction
  • RNA, Viral / analysis*
  • Risk Factors


  • Cryoglobulins
  • Oligonucleotide Probes
  • RNA, Viral