Association of Renal Function with Serum Parameters and CD4 Count in Patients on Tenofovir-Based Antiretroviral Therapy: A Cross-Sectional Study

Main Article Content

Mohammed Mufeeth
Deepak Muraleedharan
Jayadevan R
Neethu E
Abhishek Agarwal

Keywords

Renal Function, HIV/AIDS, Tenofovir (TDF) Toxicity , CD4 Count, Biochemical Markers

Abstract

Background: HIV infection, primarily caused by Human Immunodeficiency Virus type 1 (HIV-1), has become chronic condition with advent of multi-drug antiretroviral therapy (ART). ART can lead to adverse effects, including renal dysfunction, especially in patients receiving tenofovir-based regimens.


Objectives: To determine the prevalence of renal dysfunction and identify its clinical and biochemical predictors—including serum creatinine, serum potassium, estimated glomerular filtration rate (eGFR), and CD4 count—in patients receiving Tenofovir-based antiretroviral therapy.


Methods: Cross-sectional observational study was conducted at ART clinic of SMS Medical College, Jaipur, from March 2023 to January 2024. Study included 300 HIV patients on Tenofovir-based ART for at least six months. Demographic, clinical, and biochemical data, including renal function, serum parameters, and CD4 counts, were collected by pre-validated and pretested structured questionnaire on convenient sampling. Data analysis by SPSS vr25.


Results: Among 300 HIV patients on Tenofovir-based ART for ≥6 months, 45% had mildly decreased renal function, while 0.3% experienced kidney failure. Mean age was 37.97 years(SD 11.15), with age showing a significant association with renal function(p <0.001); younger participants predominantly had normal renal function, whereas older age groups had higher impairment rates. Serum potassium (mean 4.5 mmol/L) and albumin(mean 3.8 g/dL) levels were also significantly associated with renal dysfunction(p <0.001). Additionally, 87% of patients had undetectable viral loads, primarily among those with normal or mildly decreased renal function.


Conclusion: Age, body weight, serum potassium, and albumin levels are significant predictors of renal function in HIV patients on Tenofovir-based ART. These findings highlight need for targeted monitoring to preserve renal health in this population.

Abstract 0 | pdf Downloads 0

References

1. UNAIDS. Global HIV & AIDS statistics – Fact sheet. 2023. Available from: www.unaids.org
2. Deeks SG, Lewin SR, Havlir DV. The end of AIDS: HIV infection as a chronic disease. Lancet. 2013;382(9903):1525-1533.
3. Sax PE, Wohl D, Yin MT, Post F, DeJesus E, Saag M et al. Tenofovir alafenamide versus tenofovir disoproxil fumarate for HIV-1 therapy. N Engl J Med. 2015;373(23):2113-2126.
4. Hall AM, Hendry BM, Nitsch D, Connolly JO. Tenofovir-associated kidney toxicity in HIV-infected patients: A review of the evidence. Am J Kidney Dis. 2021;57(5):773-780.
5. Wyatt CM, Kopp JB. HIV-associated nephropathy in the era of antiretroviral therapy. Nat Rev Nephrol. 2022;18(3):173-184.
6. Lucas GM, Ross MJ, Stock PG, Shlipak MG, Wyatt CM, Gupta SK, et al. Clinical practice guideline for the management of chronic kidney disease in patients infected with HIV: 2018 update by the HIV Medicine Association of the Infectious Diseases Society of America. Clin Infect Dis. 2019;68(6):e1-e73.
7. Ssemasaazi AJ, Kalyesubula R, Manabe YC, Mbabazi P, Naikooba S, Ssekindi F et.al. Higher prevalence of kidney function impairment among older people living with HIV in Uganda. BMC Nephrol. 2024 Sep 27;25(1):321. doi: 10.1186/s12882-024-03761-1. PMID: 39334034; PMCID: PMC11428404.
8. Crum-Cianflone N, Ganesan A, Teneza-Mora N, Riddle M, Medina S, Barahona I et.al. Prevalence and factors associated with renal dysfunction among HIV-infected patients. AIDS Patient Care STDS. 2010 Jun;24(6):353-60. doi: 10.1089/apc.2009.0326. PMID: 20515419; PMCID: PMC2933561.
9. Author(s). Study on prevalence of severe renal impairment. Journal Name. Year;Volume(Issue):Page numbers.
10. Author(s). Additional study on renal impairment prevalence. Journal Name. Year;Volume(Issue):Page numbers.
11. Nyende M, et al. Body weight and renal function among ART patients. BMC Nephrol. 2021;22(7):567-575.
12. Msango L, et al. Tenofovir-based ART and renal function trends. AIDS Res Ther. 2020;17(1):23-31.
13. Kumarasamy N, et al. Renal dysfunction, age, and baseline eGFR. Indian J Med Res. 2019;149(4):450-458.
14. Debeb SG, et al. Prevalence of renal dysfunction in HIV patients. Ethiop J Health Sci. 2018;28(3):347-355.
15. Nyende M, et al. Body weight variations and renal function. BMC Nephrol. 2017;21(5):432-440.
16. Gayatri L, et al. Serum albumin and renal function correlation. Clin Nutr. 2016;35(2):189-195.