2019年
High-Dose Vitamin C Preadministration Reduces Vancomycin-Associated Nephrotoxicity in Mice.
J Nutr Sci Vitaminol.
- 巻
- 65
- 号
- 5
- 開始ページ
- 399
- 終了ページ
- 404
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.3177/jnsv.65.399
Vancomycin is recommended for treating severe infections caused by Gram-positive cocci, including methicillin-resistant Staphylococcus aureus. However, renal damage often occurs as a side effect because vancomycin is mainly excreted via the kidneys. The mechanism of vancomycin-associated nephrotoxicity is thought to involve the elevation of oxidative stress in the kidneys. Vitamin C (VC) has strong antioxidant properties; therefore, we evaluated the effect of high-dose VC preadministration on vancomycin-associated nephrotoxicity. Vancomycin was intraperitoneally injected into mice once daily for 7 d. Additionally, high-dose VC was intraperitoneally injected into mice at 30 min before vancomycin administration for 7 d. The plasma creatinine and urea nitrogen levels were increased by vancomycin treatment; however, high-dose VC preadministration suppressed the increase in these levels. Histological examination also revealed that high-dose VC preadministration reduced the characteristics of vancomycin-associated nephrotoxicity, such as dilated renal tubules with casts, the dilation of renal proximal tubules, and tubular epithelial desquamation. Furthermore, high-dose VC preadministration reduced the appearance of apoptotic cells presumably derived from the epithelial cells in the dilated proximal tubules. Thus, intraperitoneally injected high-dose VC preadministration reduced vancomycin-associated nephrotoxicity in mice. These novel findings may indicate that vancomycin-associated nephrotoxicity in humans may be reduced by high-dose VC preadministration.
- ID情報
-
- DOI : 10.3177/jnsv.65.399
- PubMed ID : 31666476