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HIV-associated nephropathy : ウィキペディア英語版 | HIV-associated nephropathy
HIV-associated nephropathy (HIVAN) refers to kidney disease developing in association with HIV infection. The most common, or "classical", type of HIV-associated nephropathy is a collapsing focal segmental glomerulosclerosis (FSGS), though other forms of kidney disease may also occur with HIV. Regardless of the underlying histology, renal disease in HIV-positive patients is associated with an increased risk of death. HIVAN may be caused by direct infection of the renal cells with the HIV-1 virus, with resulting renal damage through the viral gene products. It could also be caused by changes in the release of cytokines during HIV infection. Usually occurs only in advanced disease and approximately 80% of patients with HIVAN have a CD4 count of less than 200. HIVAN presents with nephrotic syndrome and progressive kidney failure. Despite being a cause of chronic kidney failure, kidney sizes are usually normal or large. ==Incidence== Much more common in Black and African American patients with HIV. In the USA 12% of patients dying with AIDS have histologically proven HIVAN, the worldwide incidence amongst AIDS patients appears to be similar. A South African study at Tygerberg Hospital, Stellenbosch University, has shown HIVAN histology in 33/61(54%) biopsies performed in HIV positive patients. Among black adults in the USA it is the third most common cause of ESRF.
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