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Published on: September 11, 2019
CKD in HIV-infected patients other than HIV-associated nephropathy
Ajay K Rachakonda1, Paul L Kimmel
1Division of Kidney Urologic and Hematologic Diseases, National Institute of Diabetes, Digestive, and Kidney Diseases, Bethesda, MD 20892, USA.
Insights
Kidney diseases in HIV patients are diverse, including chronic kidney disease (CKD) and nephrotic syndromes. Kidney biopsies are crucial for diagnosis, and more research is needed on effective treatments for immune complex glomerulonephritis (ICGN).
Area of Science:
- Nephrology
- Infectious Diseases
- Immunology
Background:
- HIV infection is associated with a range of kidney diseases, evolving with highly active antiretroviral therapy (HAART).
- Common kidney issues include chronic kidney disease (CKD), proteinuria, nephrotic syndrome, and acute nephritic syndrome.
- Thrombotic microangiopathy is a consideration in HIV patients with characteristic kidney disease presentations.
Purpose of the Study:
- To review the spectrum of kidney diseases in HIV-infected patients.
- To highlight diagnostic challenges and the need for treatment research.
- To emphasize the role of kidney biopsy and future research directions.
Main Methods:
- Literature review of kidney diseases in HIV-infected patients.
- Discussion of diagnostic approaches, including kidney biopsy.
- Analysis of treatment outcomes and research gaps.
Main Results:
- HIV-associated nephropathy remains a primary cause of nephrotic syndrome, but immune complex glomerulonephritis (ICGN) is also significant, particularly in certain populations.
- The aging HIV-infected population faces increased risks of vascular and metabolic diseases contributing to CKD.
- Genetic factors may underlie different histological presentations of HIV-associated kidney disease.
Conclusions:
- Kidney biopsy is essential for diagnosing kidney diseases in HIV patients.
- Effective treatments for conditions like ICGN in HIV patients require further investigation through randomized controlled trials.
- Understanding the genetic basis of HIV-associated kidney disease is a promising area for future research.
Abstract:
A spectrum of kidney diseases in HIV-infected patients has been reported both before and after the introduction of highly active antiretroviral therapy (HAART). Kidney syndromes affecting HIV-infected patients include CKD as well as proteinuria, nephrotic syndrome, and acute nephritic syndrome. Thrombotic microangiopathy should be considered in patients with kidney disease and typical clinical characteristics. As the HIV-infected population ages, there is increased concern regarding the incidence of vascular and metabolic disease, leading to an increased burden of CKD. Although HIV-associated nephropathy is still the major cause of nephrotic syndrome in HIV-infected patients, immune complex glomerulonephritis (ICGN) still comprises a substantial proportion of the disease burden, especially in people of European origin. Genetic investigations into the underpinnings of the various histologic expressions of HIV-associated kidney disease hold great promise. The single most important diagnostic test to differentiate various forms of kidney disease in HIV-infected patients is a kidney biopsy. The results of treating kidney disease in HIV-infected patients remain unclear, and properly designed randomized controlled trials of the treatment of ICGN with HAART and other approaches are desperately needed.
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