Dried blood spot sampling as an alternative for the improvement of hepatitis B and C diagnosis in key populations  

作　　者：Geane Lopes Flores Jakeline Ribeiro Barbosa Helena Medina Cruz Juliana Custódio Miguel Denise Vigo Potsch JoséHenrique Pilotto Danielle Malta Lima JeováKeny Baima Colares Carlos Eduardo Brandão-Mello Marcia Maria Amendola Pires Jurema Corrêa da Mota Francisco I Bastos Lia Laura Lewis-Ximenez Livia Melo Villar 

机构地区：[1]Viral Hepatitis Laboratory,FIOCRUZ,Rio de Janeiro 21040360,Brazil [2]Postgraduate Program in Pathology,Federal University of Ceará,Fortaleza 60020181,Ceara,Brazil [3]Clementino Fraga Filho Hospital,Federal University of Rio de Janeiro,Rio de Janeiro 21040360,Brazil [4]Nova Iguaçu General Hospital,Nova Iguaçu 26041061,Brazil [5]Molecular Immunology Laboratory,Oswaldo Cruz Institute,Rio de Janeiro 21040360,Brazil [6]Postgraduate Program in Medical Sciences,University of Fortaleza,Fortaleza 60811905,Ceará,Brazil [7]Escola de Medicina e Cirurgia,Gaffrée&Guinle University Hospital,Federal University of Rio de Janeiro State,Rio de Janeiro 20270901,Brazil [8]Institute of Communication and Information on Science and Technology in Health,FIOCRUZ,Rio de Janeiro 21040360,Brazil

出　　处：《World Journal of Hepatology》2021年第4期504-514,共11页世界肝病学杂志（英文版）（电子版）

基　　金：Supported by National Council for Scientific and Technological Development(CNPq);and Foundation for Research Support of the State of Rio de Janeiro(FAPERJ).

摘　　要：BACKGROUND To achieve the elimination of hepatitis B and C,there is an urgent need to develop alternative strategies to increase the access of diagnosis,particularly among key populations such as people living with human immunodeficiency virus(HIV),individuals with coagulopathies and chronic kidney disease(CKD)patients.AIM To evaluate the use of dried blood spot(DBS)in the detection of hepatitis B virus(HBV)and hepatitis C virus(HCV)markers.METHODS A total of 430 individuals comprised of people living with HIV,coagulopathies and CKD provided paired serum and DBS samples.HBsAg,anti-HBc and anti-HCV were tested in those samples using a commercial electrochemiluminescence.Demographic and selected behavioral variables were evaluated to assess possible association with HBV and HCV positivity.RESULTS Using DBS,HBsAg prevalence varied from 3.9%to 22.1%,anti-HBc rates varied from 25.5%to 45.6%and anti-HCV positivity ranged from 15.9%to 41.2%in key populations.Specificities of HBV and HCV tests using DBS varied from 88.9%to 100%.The HBsAg assay demonstrated the best performance in CKD and coagulopathy individuals and the anti-HCV test had a sensitivity and specificity of 100%in people living with HIV.Accuracy of HBV and HCV detection in DBS varied from 90.2%to 100%.In the CKD group,HBsAg positivity was associated with infrequent use of condoms,and anti-HBc positivity was associated with sharing nail cutters/razors/toothbrushes.Anti-HCV reactivity was positively associated with a history of transplantation and length of time using hemodialysis in both specimens.In people living with HIV,only the male gender was associated with anti-HBc positivity in serum and DBS.CONCLUSION DBS with electrochemiluminescence are useful tools for the diagnosis and prevalence studies of hepatitis B and C among key populations and may increase the opportunity to foster prevention and treatment.

关 键 词：Dried blood spot ELECTROCHEMILUMINESCENCE Hepatitis B Hepatitis C Key populations DIAGNOSIS 

分 类 号：R512.63[医药卫生—内科学]