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标题: 定量HBsAg以预测接受核苷(酸)类似物的HBeAg阴性患者中的低 [打印本页]

作者: StephenW    时间: 2017-12-1 21:17     标题: 定量HBsAg以预测接受核苷(酸)类似物的HBeAg阴性患者中的低

PLoS One. 2017 Nov 30;12(11):e0188303. doi: 10.1371/journal.pone.0188303. eCollection  2017.
Quantification of HBsAg to predict low levels and seroclearance in HBeAg-negative patients receiving nucleos(t)ide analogues.Broquetas T1,2, Garcia-Retortillo M1,2, Hernandez JJ3, Puigvehí M1,2, Cañete N1,2, Coll S1,2, Cabrero B1,2, Giménez MD1,2, Solà R1,2, Carrión JA1,2.
Author information
1Liver Section, Gastroenterology Department, Hospital del Mar, Universitat Autònoma de Barcelona, Departament de Medicina, Barcelona, Spain.2IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.3Laboratori de Referencia de Catalunya (LRC), El Prat de Llobregat, Barcelona, Spain.

AbstractBACKGROUND: HBeAg-negative chronic hepatitis B patients require long-term nucleos(t)ide analogues(NAs) because loss of surface antigen (HBsAg) is unusual. Low quantitative HBsAg (qHBsAg) levels can identify patients with higher probability of seroclearance. The aim of our study was to evaluate qHBsAg in HBeAg-negative patients receiving NAs to predict a reduction of HBsAg levels and seroclearance.
METHODS: Retrospective analysis of qHBsAg in HBeAg-negative patients before and at years 1, 3, 5, 8 and over of NAs treatment.
RESULTS: From 1999 to 2015, HBsAg was quantified in 358 serum samples from 95 HBeAg-negative patients. Low qHBsAg (<120 IU/mL) was identified at baseline or during follow-up in 14% of patients and HBsAg loss in 4%. No baseline variables predicted seroclearance and only treatment duration predicted low qHBsAg. The annual decline of qHBsAg was -0.102 log IU/mL and the median time to HBsAg loss was 6.04 years. The decline was greater in patients achieving low HBsAg levels (-0.257) than in those who did not (-0.057)(p<0.001). The diagnostic accuracy (ROC curve, 95%CI) of qHBsAg delta at year 3 was 0.89 (0.81-0.97), with cut-off >0.3 log IU/mL showing a positive and negative predictive value of 42% and 100% to identify patients achieving low levels of HBsAg.
CONCLUSIONS: Reduction of qHBsAg is slow in HBeAg-negative patients receiving NAs, although low levels or faster qHBsAg decline may occur in 14%. A qHBsAg reduction >0.3 log IU/mL at year 3 can identify patients with a higher probability of achieving low levels and HBsAg seroclearance.


PMID:29190670DOI:10.1371/journal.pone.0188303

作者: StephenW    时间: 2017-12-1 21:18

PLoS One。 2017年11月30日; 12(11):e0188303。 doi:10.1371 / journal.pone.0188303。 eCollection 2017。
定量HBsAg以预测接受核苷(酸)类似物的HBeAg阴性患者中的低水平和血清清除。
Broquetas T1,2,Garcia-Retortillo M1,2,Hernandez JJ3,PuigvehíM1,2,CañeteN1,2,Coll S1,2,Cabrero B1,2,GiménezMD1,2,SolàR1,2,CarriónJA1,2。
作者信息

1
    肝脏科,消化内科,del Mar医院,巴塞罗那自治大学,Departament de Medicina,西班牙巴塞罗那。
2
    IMIM(医院del Mar医学研究所),西班牙巴塞罗那。
3
    加泰罗尼亚公民学院(LRC),西班牙巴塞罗那的El Prat de Llobregat。

抽象
背景:

HBeAg阴性的慢性乙型肝炎患者需要长期的核苷(酸)类似物(NAs),因为表面抗原(HBsAg)的丢失是不常见的。低定量HBsAg(qHBsAg)水平可以识别出血清清除率较高的患者。我们研究的目的是评估接受NAs的HBeAg阴性患者的qHBsAg,以预测HBsAg水平和血清清除率的降低。
方法:

回顾性分析HBeAg阴性患者1,3,5,8及1,3,5,8及以上的NAs治疗前qHBsAg。
结果:

从1999年到2015年,对95例HBeAg阴性患者的358份血清样品进行HBsAg定量。在基线或随访期间,14%的患者发现低qHBsAg(<120IU / mL),4%的患者HBsAg消失。没有基线变量预测血清学清除,只有治疗时间预测低qHBsAg。 qHBsAg每年下降-0.102 log IU / mL,HBsAg消失的中位时间为6.04年。达到低HBsAg水平(-0.257)的患者下降幅度大于未患者(-0.057)(p <0.001)的患者下降幅度。 qHBsAg delta在第3年的诊断准确性(ROC曲线,95%CI)为0.89(0.81-0.97),截断值> 0.3 log IU / mL显示42%和100%的阳性和阴性预测值患者达到低水平的HBsAg。
结论:

接受NA的HBeAg阴性患者qHBsAg降低缓慢,尽管低水平或更快的qHBsAg下降可能发生在14%。在第3年qHBsAg降低≥0.3logIU / mL可以鉴定出实现低水平和HBsAg血清清除率的可能性更高的患者。

结论:
    29190670
DOI:
    10.1371 / journal.pone.0188303




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