- 现金
- 62111 元
- 精华
- 26
- 帖子
- 30437
- 注册时间
- 2009-10-5
- 最后登录
- 2022-12-28
|
本帖最后由 风雨不动 于 2012-4-14 14:50 编辑
J Viral Hepat. 2011 Oct;18(10):721-729. doi:
10.1111/j.1365-2893.2011.01482.x. Epub 2011 Jun 30.
High levels of serum hepatitis B virus DNA in patients with 'anti-HBc
alone': role of HBsAg mutants.
Launay O, Masurel J, Servant-Delmas A, Basse-Guérineau AL, Méritet JF,
Laperche S, Sogni P, Rosenberg AR.
Source
Université Paris Descartes, Faculté de Médecine Assistance
Publique-Hôpitaux de Paris, CIC de Vaccinologie Cochin-Pasteur, Groupe
Hospitalier Cochin, Pôle de Médecine Assistance Publique-Hôpitaux de
Paris, Groupe Hospitalier Cochin, Service de Virologie Institut National de
la Transfusion Sanguine, Centre National de Référence pour les hépatites
B et C en transfusion Université Paris Descartes, EA 4474 Assistance
Publique-Hôpitaux de Paris, Groupe Hospitalier Cochin, Pôle
médico-chirurgical d'Hépato-gastro-entérologie, Paris, France.
Abstract
Summary. It remains unclear how the detection of hepatitis B core
antibody (anti-HBc) in the absence of hepatitis B surface antigen (HBsAg)
and antibody (anti-HBs) should be interpreted and whether all patients with
this pattern need to be tested for hepatitis B virus (HBV)-DNA. This study
aimed at reassessing the significance of 'anti-HBc alone' in unselected
sera referred to the clinical laboratory and determining whether
significant HBV viraemia can be found in this setting. Of the 6431 patients
tested for HBsAg, total anti-HBc and anti-HBs in a Paris hospital over a
1-year period, 362 (5.6%) had 'anti-HBc alone' (24.8% of anti-HBc-positive
patients). Only 11 of the 362 sera (3.0%) were found to be false positive.
One patient was in the resolving phase of acute hepatitis B. HBV-DNA was
detected in 10 of 362 (2.8%) patients, using a commercial standardized
assay (threshold: 350 IU/mL). Viral loads exceeded 10(4) copies/mL in
6 of 10 patients. Mutations in the HBsAg immunodominant region were
identified in seven of the viraemic patients. HBsAg was detected in only
two cases when retested by one of the latest, multivalent assays. Neither
human immunodeficiency virus nor hepatitis C virus serostatus distinguished
between patients with and without HBV-DNA. In conclusion, 'anti-HBc alone'
should be considered a risk marker for a so-called 'false occult' HBV
infection with significant viraemia. Indeed, results in this hospital
population indicate that a small proportion of patients with 'anti-HBc
alone' have high viral loads, revealing the occurrence of infection with
HBV mutants that escape detection even by multivalent HBsAg assays.
© 2011 Blackwell Publishing Ltd.
PMID: 21914087 [PubMed - as supplied by publisher]
(6.合.彩).足球.篮球...各类投注开户下注
第一投注.现金网:招代理年薪10万以上:6668.cc |
|