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KMID : 0191120200350190122
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Journal of Korean Medical Science
2020 Volume.35 No. 19 p.122 ~ p.122
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Development of End Stage Renal Disease after Long-Term Ingestion of Chaga Mushroom: Case Report and Review of Literature
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Lee Su-A
Lee Hwa-Young
Park Yo-Han
Ko Eun-Jeong
Ban Tae-Hyun
Chung Byung-Ha
Lee Hyun-Soon
Yang Chul-Woo
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Abstract
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Chaga mushrooms are widely used in folk remedies and in alternative medicine. Contrary to many beneficial effects, its adverse effect is rarely reported. We here report a case of end-stage renal disease after long-term taking Chaga mushroom. A 49-year-old Korean man with end stage renal disease (ESRD) was transferred to our hospital. Review of kidney biopsy finding was consistent with chronic tubulointerstitial nephritis with oxalate crystal deposits and drug history revealed long-term exposure to Chaga mushroom powder due to intractable atopic dermatitis. We suspected the association between Chaga mushroom and oxalate nephropathy, and measured the oxalate content of remained Chaga mushroom. The Chaga mushroom had extremely high oxalate content (14.2/100 g). Estimated daily oxalate intake of our case was 2 times for four years and 5 times for one year higher than that of usual diet. Chaga mushroom is a potential risk factor of chronic kidney disease considering high oxalate content. Nephrologist should consider oxalate nephropathy in ESRD patients exposed to Chaga mushrooms.
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KEYWORD
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Chaga Mushroom, End Stage Renal Disease, Oxalate Nephropathy
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