PMID- 16124465 OWN - NLM STAT- MEDLINE DCOM- 20061219 LR - 20161018 IS - 0250-3301 (Print) IS - 0250-3301 (Linking) VI - 26 IP - 3 DP - 2005 May TI - [Free radical generation and lipid peroxidation induced by 2,4-dichlorophenol in liver of Carassius auratus]. PG - 29-32 AB - Free radical generation in liver of larval fish (Carassius auratus) after 2,4-dichlorophenol (2,4-DCP) injected intraperitoneally 24 h was studied with electron paramagnetic resonance (EPR) spin trapping technique and alpha-phenyl-N-tert-butylnitrone (PBN) as spin trap reagent. The results show that there is a significant increase of free radical generation in the liver of the fish treated with 2,4-DCP (0.025, 0.05, 0.5, 5, 25 mg/kg) compared with that of the control (p<0.05). The free radical generation correlates well with the dose of 2,4-DCP administered. The regress equation for dose-effect relation is y = 1189ln(x) + 9220, r2 = 0.9856. The six-line composed of three groups with two hyperfine splitting peaks in each shows a typical PBN/*OH EPR spectrum. The hyperfine splitting constants for the PBN-adducts is alphaN = 13.7 Gauss, alphaH= 1.8 Gauss, g factor is 2.0058, which is consistent with the characteristics of PBN-hydroxyl radical adduct reported from the literature. Results also show that there is a significant increase for malondialdehyde (MDA) content in the treated groups compared with that of the control (p<0.05). The mechanisms of free radical generation and lipid peroxidation induced by 2,4-DCP are discussed in this study. FAU - Luo, Yi AU - Luo Y AD - State Key Laboratory of Pollution Control and Resources Reuse, School of Environment, Nanjing University, Nanjing 210093, China. yiluo@lnu.edu.cn FAU - Shi, Hua-hong AU - Shi HH FAU - Wang, Xiao-rong AU - Wang XR FAU - Ji, Liang-liang AU - Ji LL LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Huan Jing Ke Xue JT - Huan jing ke xue= Huanjing kexue JID - 8405344 RN - 0 (Chlorophenols) RN - 0 (Free Radicals) RN - R669TG1950 (2,4-dichlorophenol) SB - IM MH - Animals MH - Chlorophenols/*toxicity MH - Free Radicals/*metabolism MH - Goldfish/*metabolism MH - Lipid Peroxidation/drug effects MH - Liver/*metabolism EDAT- 2005/08/30 09:00 MHDA- 2006/12/21 09:00 CRDT- 2005/08/30 09:00 PHST- 2005/08/30 09:00 [pubmed] PHST- 2006/12/21 09:00 [medline] PHST- 2005/08/30 09:00 [entrez] PST - ppublish SO - Huan Jing Ke Xue. 2005 May;26(3):29-32.