title: [HLA and hypo-responsivity to anti-HBV vaccination (genetic study of non-responder subjects to anti-hepatitis B viral vaccine)].
abstract: The control of the immunization due to hepatitis B vaccines (HB-VAX and HEVAC B) showed that a low percentage of healthy adults vaccinated develop a non protective title of HBsAb or do not produce antibodies. The correlation between immunity and HLA has already been demonstrated: HLA is at the base of individual immunological response; this correlation directed our genetic study of low-responders or non-responders patients to anti-HBV vaccine. In our study 11 out of 97 subjects vaccinated (11.34%) with HB VAX or HEVAC B resulted hyporesponsive and underwent complete HLA typing to verify the relation between immune deficiency response and genetic system. There was an increase in phenotype HLA-DR7 incidence, with respect to a non-selective population and a decrease of HLA-DR1, as it has already been mentioned in the literature, the variations were not statistically significant taking into account the exiguity of the samples considered.
mesh_terms: D005260:Female; D006680:HLA Antigens / Q000235:genetics*; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000276:immunology*; D017325:Hepatitis B Vaccines; D006801:Humans; D008297:Male; D010641:Phenotype; D014761:Viral Hepatitis Vaccines / Q000276:immunology*
chemical_list: D006680:HLA Antigens; D006510:Hepatitis B Antibodies; D017325:Hepatitis B Vaccines; D014761:Viral Hepatitis Vaccines
vernacular_title: HLA e iporesponsività alla vaccinazione anti-HBV (studio genetico di soggetti non-responders al vaccino anti-epatite virale B).