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  • Title: Hyperbaric oxygen treatment and N-acetylcysteine ameliorate acetaminophen-induced liver injury in a rat model.
    Author: Taslipinar MY, Aydin I, Kaldirim U, Aydin FN, Agilli M, Eyi YE, Tuncer SK, Altayli E, Ucar F, Macit E, Toygar M, Yigit N, Cayci T.
    Journal: Hum Exp Toxicol; 2013 Oct; 32(10):1107-16. PubMed ID: 23925941.
    Abstract:
    An overdose of acetaminophen (APAP) produces centrilobular hepatocellular necrosis. We aimed to investigate the hepatoprotective effects of N-acetylcysteine (NAC) only and hyperbaric oxygen (O(2)) treatment (HBOT) combined with NAC, and their anti-inflammatory properties in liver tissue. In the current study, a total of 32 male Sprague Dawley rats were divided into 4 groups: sham, APAP, NAC, and NAC + HBOT. In the APAP, NAC, and NAC + HBOT groups, liver injury was induced by oral administration of 1 g/kg APAP. The NAC group received 100 mg/kg NAC per day. NAC + HBOT group received intraperitoneal injection of 100 mg/kg/day NAC and were given HBOT at 2.8 ATA pressure with 100% O(2) inhalation for 90 min every 12 h for 5 days. Rats in the sham group received distilled water only by gastric tube. All animals were killed on day 6 after APAP or distilled water administration. Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities, hepatic neopterin, tumor necrosis factor-α (TNF-α), and interleukin 6 (IL-6) levels were measured. There was a significant increase in serum AST and ALT activities in the APAP group compared with the sham group (in both p = 0.001). NAC and NAC + HBOT groups had significant decreases in hepatic neopterin, TNF-α, and IL-6 levels compared with the APAP group. APAP administration caused extensive hepatic necrosis. NAC and NAC + HBO treatments significantly reduced APAP-induced liver injury. Our results showed that the liver damage in APAP toxicity was attenuated by NAC and NAC + HBO treatments. NAC + HBOT exhibit hepatoprotective activity against APAP-induced liver injury in rats.
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