Vitamin D deficiency may increase the risk of Amphotericin B-related kidney toxicity

Amphotericin B (AmB) is the drug of choice for the treatment of many fungal infections.  Despite this, the drug can cause several serious side effects, one of which being nephrotoxicity (toxicity to the kidneys). Conventional AmB can be adapted into a lipid emulsion preparation, which can reduce the risk of nephrotoxicity, while preserving its efficacy and remaining a lower cost option. Unfortunately this does not solve the problem, and nephrotoxicity remains an issue for many patients.

Vitamin D deficiency has been found to be a major problem worldwide, and can increase the risk of kidney-related disease, including drug-induced nephrotoxicity. A recent study by Daniela Ferreira and colleagues at the University of Sao Paulo looked at standard and vitamin D-deficient rats and found that the deficient rats treated with AmB presented with impaired renal function. This suggests that vitamin D deficiency may play a key role in the development of AmB-induced nephrotoxicity. Therefore, the authors state that it is essential to monitor levels of vitamin D in patients treated with both conventional and lipid formulations of AmB, in order to reduce the development of kidney disease.

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