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Steady-state pharmacokinetics of plasma tenofovir alafenamide (TAF), tenofovir (TFV) and emtricitabine (FTC), and intracellular TFV-diphosphate and FTC-triphosphate in HIV-1 infected old Japanese patients treated with bictegravir/FTC/TAF

open access: yesSteady-state pharmacokinetics of plasma tenofovir alafenamide (TAF), tenofovir (TFV) and emtricitabine (FTC), and intracellular TFV-diphosphate and FTC-triphosphate in HIV-1 infected old Japanese patients treated with bictegravir/FTC/TAF
openaire  

Differences in Local and Systemic TFV PK Among Premenopausal Versus Postmenopausal Women Exposed to TFV 1% Vaginal Gel [PDF]

open access: yesJournal of Acquired Immune Deficiency Syndromes (1999), 2018
Objective: We describe and compare the local and systemic pharmacokinetics (PK) of tenofovir (TFV) and TFV-diphosphate (TFV-DP) in healthy premenopausal (PRE) and postmenopausal (POST) women using TFV 1% gel and correlate local PK with other mucosal end points. Methods: PRE (n = 20)
Andrea Thurman   +2 more
exaly   +3 more sources

Hypo-osmolar Formulation of Tenofovir (TFV) Enema Promotes Uptake and Metabolism of TFV in Tissues, Leading to Prevention of SHIV/SIV Infection [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 2018
ABSTRACT Oral preexposure prophylaxis (PrEP) has been approved for prophylaxis of HIV-1 transmission but is associated with high costs and issues of adherence. Protection from anal transmission of HIV using topical microbicides and methods congruent with sexual behavior offers the promise of improved adherence.
Abhijit Date   +2 more
exaly   +3 more sources
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Comparison of amino terminal region of three isoenzymes of phospholipases A2 (TFV PL-Ia, TFV PL-Ib, TFV PL-X) from Trimeresurus flavoviridis (habu snake) venom and the complete amino acid sequence of the basic phospholipase, TFV PL-X

Toxicon, 1986
Three phospholipases (PLA2s) isolated from Japanese habu snake (Trimeresurus flavoviridis) venom differ from each other in the physiological symptoms induced in animals. The amino acid compositions and amino terminal sequences of these isoenzymes have been compared. TFV PL-Ia and TFV PL-Ib resemble each other very closely, but TFV PL-X has a distinctly
Shun-Ichiro Kawabata   +2 more
exaly   +3 more sources

Steady-state pharmacokinetics of plasma tenofovir alafenamide (TAF), tenofovir (TFV) and emtricitabine (FTC), and intracellular TFV-diphosphate and FTC-triphosphate in HIV-1 infected old Japanese patients treated with bictegravir/FTC/TAF

open access: yesGlobal Health & Medicine, 2023
Emtricitabine (FTC) plus tenofovir alafenamide (TAF) has demonstrated efficacy and safety for pre-exposure prophylaxis (PrEP) to prevent HIV-1 infection. We measured the plasma PK of FTC, tenofovir (TFV), and TAF in a steady-state pharmacokinetic (PK) study of bictegravir/FTC/TAF in HIV-1-infected patients.
Hiroyuki Gatanaga   +2 more
exaly   +3 more sources

An LC-MS/MS method for determination of tenofovir (TFV) in human plasma following tenofovir alafenamide (TAF) administration: Development, validation, cross-validation, and use of formic acid as plasma TFV stabilizer

Analytical Biochemistry, 2020
Tenofovir disoproxil fumarate (TDF) and tenofovir alafenamide (TAF) are both tenofovir (TFV) prodrugs, with the same active intracellular metabolite, TFV-diphosphate (TFV-DP). TAF delivers TFV-DP to target cells more efficiently and at lower doses than TDF, thereby substantially reducing systemic exposure to TFV, which results in improved bone and ...
Yuan-Shek Chen   +2 more
exaly   +3 more sources

Strong Correlation Between Concentrations of Tenofovir (TFV) Emtricitabine (FTC) in Hair and TFV Diphosphate and FTC Triphosphate in Dried Blood Spots in the iPrEx Open Label Extension: Implications for Pre-exposure Prophylaxis Adherence Monitoring [PDF]

open access: yesJournal of Infectious Diseases, 2015
Self-reported adherence to pre-exposure prophylaxis (PrEP) has limitations, raising interest in pharmacologic monitoring. Drug concentrations in hair and dried blood spots (DBS) are used to assess long-term-exposure; hair shipment/storage occurs at room temperature.
David Glidden   +2 more
exaly   +5 more sources

Identification of two novel membrane proteins from the Tiger frog virus (TFV)

Virus Research, 2008
The Tiger frog virus (TFV) belongs to the genus Ranavirus in the family Iridoviridae, and its genome was completely sequenced in 2002. In order to better understand the viral structure and functional genes involved in infection and virus-host interactions, two candidate genes, ORF001L and ORF020R, were selected for our study.
Jun-Feng Xie   +2 more
exaly   +3 more sources

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