Detection of HIV-1 in Saliva: Implications for Case-Identification, Clinical Monitoring and Surveillance for Drug Resistance§

Autor: Balamane, Maya, Winters, Mark A, Dalai, Sudeb C, Freeman, Alexandra H, Traves, Mark W, Israelski, Dennis M, Katzenstein, David A, Klausner, Jeffrey D
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: The Open Virology Journal
ISSN: 1874-3579
Popis: Background: Saliva tests that detect antibodies are used to diagnose HIV infection. The goal of this study was to determine whether saliva could be used for nucleic acid-based tests to measure HIV-1 virus load (VL) and detect drug resistance. Methods: 69 HIV infected individuals provided 5-10 ml of saliva and blood samples. Viral RNA was isolated from saliva and dried blood spots using the Nuclisens extraction. Saliva VL was measured using a modified Amplicor assay, and genotyping was performed using an in-house RT-PCR/sequencing protocol. Plasma VLs were obtained from concurrently drawn clinical tests. Results: Thirty-six of 47 (77%) plasma viremic patients had measurable saliva HIV-1 RNA. Paired plasma and saliva HIV RNA levels were significantly correlated (Spearman’s correlation = .6532, p50 copies/mL had detectable saliva HIV RNA, and the genotypic data was highly concordant between saliva and plasma. In patients with high levels of plasma HIV RNA, saliva might be useful in identifying viremia and evaluating drug resistance.
Databáze: OpenAIRE