PMID- 17651993 OWN - NLM STAT- MEDLINE DCOM- 20071220 LR - 20121115 IS - 1079-9796 (Print) IS - 1079-9796 (Linking) VI - 39 IP - 3 DP - 2007 Nov-Dec TI - Comparison of the effect of phenol and its derivatives on protein and free radical formation in human erythrocytes (in vitro). PG - 238-44 AB - The effect of phenolic compounds: phenol, 2,4-dichlorophenol (2,4-DCP), 2,4-dimethylphenol (2,4-DMP) and catechol on human erythrocytes was studied. The level of fluorescent label - 6-carboxy-2',7'-dichlorodihydrofluorescein diacetate (H(2)DCFDA) oxidation by phenolic compounds in erythrocytes as well as the carbonyl group content and hemoglobin denaturation were monitored. H(2)DCFDA has been utilized extensively as a marker for studies of oxidative stress at the cellular level. We noted that 2,4-DCP, 2,4-DMP and catechol induced an increase in the concentration- and time-dependent H(2)DCFDA oxidation. We also observed an increase in carbonyl group content and the changes in parameter T (denaturation of hemoglobin) in erythrocytes incubated with 2,4-DCP, catechol and 2,4-DMP. The highest level of H(2)DCFDA oxidation was provoked by 2,4-DCP. The biggest changes of proteins in erythrocytes measured as the carbonyl group content were induced by 2,4-DMP, but measured as parameter T they were induced by catechol. It was observed that phenol did not oxidize H(2)DCFDA up to the concentration of 2.5 mM after 3 h of incubation. Phenol did not affect the carbonyl group content but decreased parameter T (induced denaturation of hemoglobin). To sum up, the kind of the substituent in a phenolic ring determines the molecular mechanism of action of the individual compound and the capacity of reactive oxygen species generation and thus damages the specified structures in human erythrocytes. FAU - Bukowska, B AU - Bukowska B AD - Department of Biophysics of Environmental Pollution, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland. bukow@biol.uni.lodz.pl FAU - Michalowicz, J AU - Michalowicz J FAU - Krokosz, A AU - Krokosz A FAU - Sicinska, P AU - Sicinska P LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070724 PL - United States TA - Blood Cells Mol Dis JT - Blood cells, molecules & diseases JID - 9509932 RN - 0 (2',7'-dichlorodihydrofluorescein diacetate) RN - 0 (Catechols) RN - 0 (Chlorophenols) RN - 0 (Fluoresceins) RN - 0 (Free Radicals) RN - 0 (Hemoglobins) RN - 0 (Phenols) RN - 0 (Xylenes) RN - 5OD803C081 (2,4-dimethylphenol) RN - LF3AJ089DQ (catechol) RN - R669TG1950 (2,4-dichlorophenol) SB - IM MH - Catechols/toxicity MH - Chlorophenols/toxicity MH - Erythrocytes/*drug effects/metabolism MH - Fluoresceins/metabolism MH - Free Radicals/*metabolism MH - Hemoglobins/metabolism MH - Humans MH - Oxidation-Reduction MH - Oxidative Stress MH - Phenols/*toxicity MH - Protein Carbonylation MH - Xylenes/toxicity EDAT- 2007/07/27 09:00 MHDA- 2007/12/21 09:00 CRDT- 2007/07/27 09:00 PHST- 2007/04/23 00:00 [received] PHST- 2007/06/01 00:00 [accepted] PHST- 2007/07/27 09:00 [pubmed] PHST- 2007/12/21 09:00 [medline] PHST- 2007/07/27 09:00 [entrez] AID - S1079-9796(07)00117-9 [pii] AID - 10.1016/j.bcmd.2007.06.003 [doi] PST - ppublish SO - Blood Cells Mol Dis. 2007 Nov-Dec;39(3):238-44. doi: 10.1016/j.bcmd.2007.06.003. Epub 2007 Jul 24.