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John Todd

Researcher at NHS Tayside

Publications -  65
Citations -  10219

John Todd is an academic researcher from NHS Tayside. The author has contributed to research in topics: RNA & Viral load. The author has an hindex of 30, co-authored 60 publications receiving 9843 citations. Previous affiliations of John Todd include Bayer & Glenfield Hospital.

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Prognosis in HIV-1 Infection Predicted by the Quantity of Virus in Plasma

TL;DR: Plasma viral load was a better predictor of progression to AIDS and death than was the number of CD4+ T cells, and the risk of acquired immunodeficiency syndrome (AIDS) and death in study subjects was directly related to plasma viral load at study entry.
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Plasma Viral Load and CD4+ Lymphocytes as Prognostic Markers of HIV-1 Infection

TL;DR: This study compared the prognostic value of plasma viral load with that of clinical, serologic, and cellular markers in a large cohort of HIV-infected men and incorporated the two most predictive markers-plasma viral load and CD4+ lymphocyte count-into a regression tree that is useful for assessing the prognosis of individual patients.
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Quantitation of HIV-1 RNA in Plasma Predicts Outcome after Seroconversion

TL;DR: The objective was to compare plasma HIV-1 RNA with determinations of serum p24 antigen, neopterin, and 2-microglobulin levels and CD4+ T-cell counts as predictors of outcome in a cohort of homosexual men with documented HIV- 1 seroconversion.
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Ultrasensitive Flow-based Immunoassays Using Single-Molecule Counting

TL;DR: The Erenna IA-based technology reproducibly measures protein biomarkers with detection limits of 10-100 pg/L, with a dynamic range of >4.5 logs in sample volumes of 50-150 microL.