title: HIV-1 and HCV detection in dried blood spots by SYBR Green multiplex real-time RT-PCR.
abstract: Dried blood spot (DBS) is a reliable method of blood collection used for the diagnosis of several human diseases. DBS is particularly useful for diagnosing children and for the screening of high-risk populations especially in countries where health facilities are not readily accessible. This report describes a qualitative SYBR Green-based real-time multiplex RT-PCR for the simultaneous detection of hepatitis C virus (HCV) and human immunodeficiency virus type 1 (HIV-1) genomes in DBS. Specific viral amplicons were identified in the same sample by their distinctive melting temperatures. The analysis of scalar concentrations of the reference samples indicated that this multiplex procedure detects at least 2500 copies/ml of HCV and 400 copies/ml of HIV-1. HIV-1 and HCV viral loads in 20 patients infected with HIV-1 and/or HCV and in 5 healthy blood donors were also tested, confirming the sensitivity and specificity of the assay. This method may represent a reliable alternative for the detection of HIV-1/HCV co-infection, in rapid and relatively inexpensive screening programmes.
authors.affiliation: Department of Haematology and Oncologic Sciences, Section of Microbiology, Rome, Italy.
authors.forename: Elisa
authors.initials: E
authors.lastname: De Crignis
authors.forename: Maria Carla
authors.initials: MC
authors.lastname: Re
authors.forename: Laura
authors.initials: L
authors.lastname: Cimatti
authors.forename: Lisa
authors.initials: L
authors.lastname: Zecchi
authors.forename: Davide
authors.initials: D
authors.lastname: Gibellini
mesh_terms: D000328:Adult; D052160:Benzothiazoles; D001769:Blood / Q000821:virology*; D003890:Desiccation; D003959:Diamines; D015658:HIV Infections / Q000175:diagnosis* / Q000821:virology; D015497:HIV-1 / Q000235:genetics / Q000302:isolation & purification*; D016174:Hepacivirus / Q000235:genetics / Q000302:isolation & purification*; D006526:Hepatitis C / Q000175:diagnosis* / Q000821:virology; D006801:Humans; D009930:Organic Chemicals; D011804:Quinolines; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods*; D012680:Sensitivity and Specificity; D013048:Specimen Handling / Q000379:methods; D013194:Staining and Labeling / Q000379:methods; D013997:Time Factors; D044366:Transition Temperature; D055815:Young Adult
chemical_list: D052160:Benzothiazoles; D003959:Diamines; D009930:Organic Chemicals; D011804:Quinolines; C098022:SYBR Green I