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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11896

Title: Tenofovir is associated with increased tubular proteinuria and asymptomatic renal tubular dysfunction in Ghana
Authors: Phillips, Richard O.
Chadwick, David R.
Sarfo, Fred S.
Kirk, Elaine S. M.
Owusu, Dorcas
et. al
Keywords: HIV
Kidney
Renal
TDF
Tubular
Africa
Antiretroviral therapy
Issue Date: 1-Dec-2015
Publisher: BioMed Central
Citation: BMC Nephrology (2015) 16:195 DOI 10.1186/s12882-015-0192-4
Abstract: Background: HIV infection is associated with increased risk of renal dysfunction, including tubular dysfunction (TD) related to antiretroviral therapy (ART). Tenofovir disoproxil fumarate (TDF) is becoming available for ART in sub- Saharan Africa, although data on its long-term safety there is limited. We aimed to study the prevalence of HIVassociated renal dysfunction in Ghana and explore associations between proteinuria or TD and potential risk factors, including TDF use. Methods: A single-centre cross-sectional observational study of patients taking ART was undertaken. Creatinine clearance (CrCl) was calculated and proteinuria detected with dipsticks. Spot urinary albumin and protein:creatinine ratios (uACR/uPCR) were measured and further evidence of TD (defined as having two or more characteristic features) sought. Logistic regression analysis identified factors associated with proteinuria or TD. Results: In 330 patients, of whom 101 were taking TDF (median 20 months), the prevalence of CrCl < 60ml/min/ 1.73m2, dipstick proteinuria and TD was 7 %, 37 % and 15 %. Factors associated with proteinuria were baseline CD4-count [aOR 0.86/100 cell increment (95 % CI, 0.74–0.99)] and TDF use [aOR 2.74 (95 % CI, 1.38–5.43)]. The only factor associated with TD was TDF use [aOR 3.43 (95 % CI, 1.10–10.69)]. In a subset with uPCR measurements, uPCRs were significantly higher in patients taking TDF than those on other drugs (10.8 vs. 5.7 mg/mmol, p < 0.001), and urinary albuin:protein ratios significantly lower (0.24 vs. 0.58, p < 0.001). Conclusions: Both proteinuria and TD are common and associated with TDF use in Ghana. Further longitudinal studies to determine whether proteinuria, TD or TDF use are linked to progressive decline in renal function or other adverse outcomes are needed in Africa.
Description: An article published by BioMed Central and available at DOI 10.1186/s12882-015-0192-4
URI: http://hdl.handle.net/123456789/11896
Appears in Collections:College of Health Sciences

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