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"Green Smoothie Cleanse" Causing Acute Oxalate Nephropathy.

Makkapati, Swetha; D'Agati, Vivette D; Balsam, Leah.
Am J Kidney Dis; 71(2): 281-286, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29203127
Oxalate nephropathy is an uncommon condition that causes acute kidney injury with the potential for progression to end-stage renal disease. Diagnosis is based on the kidney biopsy findings of abundant polarizable calcium oxalate crystals in the epithelium and lumen of renal tubules. We report a case of acute oxalate nephropathy in a 65-year-old woman, temporally associated with the consumption of an oxalate-rich green smoothie juice "cleanse" prepared from juicing oxalate-rich green leafy vegetables and fruits. Predisposing factors included a remote history of gastric bypass and recent prolonged antibiotic therapy. She had normal kidney function before using the cleanse and developed acute kidney injury that progressed to end-stage renal disease. Consumption of such juice cleanses increases oxalate absorption, causing hyperoxaluria and acute oxalate nephropathy in patients with predisposing risk factors. Given the increasing popularity of juice cleanses, it is important that both patients and physicians have greater awareness of the potential for acute oxalate nephropathy in susceptible individuals with risk factors such as chronic kidney disease, gastric bypass, and antibiotic use.
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