Detection of HIV-1 in alternative specimen types using the APTIMA HIV-1 RNA Qualitative Assay. 2009

C Thomas Nugent, and J Dockter, and F Bernardin, and R Hecht, and D Smith, and E Delwart, and C Pilcher, and D Richman, and M Busch, and C Giachetti
Gen-Probe Incorporated, San Diego, CA, USA. tomn@gen-probe.com

Peripheral blood mononuclear cells (PBMCs), saliva, seminal plasma, and dried blood spots were evaluated as specimen types for the APTIMA HIV-1 RNA Qualitative Assay (APTIMA HIV-1 Assay), which employs a target capture step to recover HIV-1-specific sequences from complex specimen types. Analytical sensitivity studies were carried out using samples that were either diluted or eluted with a buffered detergent and spiked with different concentrations of HIV-1 ranging from 1 to 10,000 copies/mL. PBMC samples spiked with HIV-1 had comparable analytical sensitivity to HIV-1 spiked plasma with a 95% limit of detection of 13.1 and 17.2 copies/mL, respectively. Analytical sensitivity in seminal plasma specimens diluted 1:5 and saliva diluted 1:2 was comparable to HIV-1 spiked dilution buffer alone. Whole blood and dried blood spot specimens spiked with HIV-1 had equivalent reactivity at 250 copies/spot (5000 copies/mL). However, the 95% limit of detection values were significantly different (293.7 copies/mL for whole blood and 2384 copies/mL for dried blood spot specimens). No significant effect on analytical sensitivity was observed when one HIV-1 positive dried blood spot punch was pooled with up to 9 HIV-1 negative dried blood spot punches. Together, these studies demonstrate that the APTIMA HIV-1 RNA Qualitative Assay can be used to process a diverse array of specimen types with minimal impact on analytical sensitivity for most specimen types.

UI MeSH Term Description Entries
D007963 Leukocytes, Mononuclear Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules. Mononuclear Leukocyte,Mononuclear Leukocytes,PBMC Peripheral Blood Mononuclear Cells,Peripheral Blood Human Mononuclear Cells,Peripheral Blood Mononuclear Cell,Peripheral Blood Mononuclear Cells,Leukocyte, Mononuclear
D011933 Reagent Kits, Diagnostic Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use. Diagnostic Reagent Kits,Diagnostic Reagents and Test Kits,Diagnostic Test Kits,In Vitro Diagnostic Device,In Vitro Diagnostic Devices,In Vitro Diagnostic Medical Device,In Vitro Diagnostic Medical Devices,Kits, Diagnostic Reagent,Diagnostic Reagent Kit,Diagnostic Test Kit,Kit, Diagnostic Reagent,Kit, Diagnostic Test,Kits, Diagnostic Test,Reagent Kit, Diagnostic,Test Kit, Diagnostic,Test Kits, Diagnostic
D001801 Blood Stains Antigenic characteristics and DNA fingerprint patterns identified from blood stains. Their primary value is in criminal cases. Blood Stain,Stain, Blood,Stains, Blood
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA
D012463 Saliva The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin. Salivas
D012661 Semen The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma. Seminal Plasma,Plasma, Seminal
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity
D015497 HIV-1 The type species of LENTIVIRUS and the etiologic agent of AIDS. It is characterized by its cytopathic effect and affinity for the T4-lymphocyte. Human immunodeficiency virus 1,HIV-I,Human Immunodeficiency Virus Type 1,Immunodeficiency Virus Type 1, Human
D015658 HIV Infections Includes the spectrum of human immunodeficiency virus infections that range from asymptomatic seropositivity, thru AIDS-related complex (ARC), to acquired immunodeficiency syndrome (AIDS). HTLV-III Infections,HTLV-III-LAV Infections,T-Lymphotropic Virus Type III Infections, Human,HIV Coinfection,Coinfection, HIV,Coinfections, HIV,HIV Coinfections,HIV Infection,HTLV III Infections,HTLV III LAV Infections,HTLV-III Infection,HTLV-III-LAV Infection,Infection, HIV,Infection, HTLV-III,Infection, HTLV-III-LAV,Infections, HIV,Infections, HTLV-III,Infections, HTLV-III-LAV,T Lymphotropic Virus Type III Infections, Human

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