Modulatory effect of
4-phenyl butyric acid on hyperoxaluria-induced renal injury and inflammation.
Mol Cell Biochem 2018;
451:185-196. [PMID:
30066041 DOI:
10.1007/s11010-018-3405-x]
[Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 07/13/2018] [Indexed: 01/08/2023]
Abstract
Hyperoxaluria-associated deposition of calcium oxalate crystals results from oxalate-induced renal injury and inflammation. The present study was designed to evaluate the effect of 4-Phenyl butyric acid (4-PBA), a chemical chaperone, in ethylene glycol-induced hyperoxaluria and compare its effect with antioxidant, N-acetyl cysteine (NAC). Male Sprague-Dawley rats were given ethylene glycol in drinking water for 28 days to induce hyperoxaluria. 4-PBA and NAC were given by oral gavage. Effect of 4-PBA was analyzed in both prophylactic and curative regimens. After every 7 days, 24-h urine samples were analyzed for kidney injury and inflammation markers. Increased amounts of kidney injury markers like Kidney injury molecule-1, Lactate dehydrogenase, and N-acetyl-β-glucoseaminidase were found in the urine of hyperoxaluric rats which were significantly reduced by 4-PBA treatment in both prophylactic and curative regimens. Inflammatory markers IL-1β, IL-6, and MCP-1 were also raised in the urine of hyperoxaluric rats which were significantly decreased by 4-PBA treatment. Hyperoxaluria was accompanied with renal oxidative stress as reflected by decreased glutathione redox status and increased reactive oxygen species which was significantly reduced by 4-PBA treatment. Histological study with H&E and Pizzolato staining showed numerous calcium oxalate crystal deposits in the renal tissues of hyperoxaluric rats. However, no significant crystal deposits were seen in the 4-PBA-treated hyperoxaluric rats. N-acetyl cysteine treatment effectively decreased renal oxidative stress but did not alter the production of inflammatory markers. Collectively, the present study suggested the potential protective effect of 4-PBA in hyperoxaluria-induced renal injury and inflammation.
Collapse