PMID- 15064153 OWN - NLM STAT- MEDLINE DCOM- 20041110 LR - 20181113 IS - 0091-6765 (Print) IS - 0091-6765 (Linking) VI - 112 IP - 5 DP - 2004 Apr TI - Structural changes in gill DNA reveal the effects of contaminants on Puget Sound fish. PG - 511-5 AB - Structural differences were identified in gill DNA from two groups of English sole collected from Puget Sound, Washington, in October 2000. One group was from the industrialized Duwamish River (DR) in Seattle and the other from relatively clean Quartermaster Harbor (QMH). Chemical markers of sediment contamination [e.g., polynuclear aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs)] established that the DR was substantially more contaminated than QMH. The levels of these chemicals in the sediments of both sites were consistent with levels of cytochrome P450 1A (CYP1A) expression in the gills of English sole from the same sites. Structural differences in gill DNA between the groups were evinced via statistical models of Fourier transform-infrared (FT-IR) spectra. Marked structural damage was found in the gill DNA of the DR fish as reflected in differences in base functional groups (e.g., C-O and NH2) and conformational properties (e.g., arising from perturbations in vertical base stacking interactions). These DNA differences were used to discriminate between the two fish groups through principal components analysis of mean FT-IR spectra. In addition, logistic regression analysis allowed for the development of a "DNA damage index" to assess the effects of contaminants on the gill. The evidence implies that environmental chemicals contribute to the DNA changes in the gill. The damaged DNA is a promising marker for identifying, through gill biopsies, contaminant effects on fish. FAU - Malins, Donald C AU - Malins DC AD - Biochemical Oncology Program, Pacific Northwest Research Institute, 720 Broadway, Seattle, WA 98122, USA. dmalins@pnri.org FAU - Stegeman, John J AU - Stegeman JJ FAU - Anderson, Jack W AU - Anderson JW FAU - Johnson, Paul M AU - Johnson PM FAU - Gold, Jordan AU - Gold J FAU - Anderson, Katie M AU - Anderson KM LA - eng GR - 5P42 ES 07381/ES/NIEHS NIH HHS/United States GR - P42 ES 04696/ES/NIEHS NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Environ Health Perspect JT - Environmental health perspectives JID - 0330411 RN - 0 (Benzofurans) RN - 0 (Polychlorinated Dibenzodioxins) RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 0 (Polymers) RN - 0 (Water Pollutants, Chemical) RN - 0 (polychlorodibenzofuran) RN - 9007-49-2 (DNA) RN - DFC2HB4I0K (Polychlorinated Biphenyls) RN - EC 1.14.14.1 (Cytochrome P-450 CYP1A1) SB - IM MH - Animals MH - Benzofurans/analysis MH - Cytochrome P-450 CYP1A1/metabolism MH - DNA/chemistry/*drug effects MH - Flounder/anatomy & histology/*genetics MH - Geologic Sediments/chemistry MH - Gills/*drug effects/metabolism/pathology MH - Logistic Models MH - Polychlorinated Biphenyls/analysis MH - Polychlorinated Dibenzodioxins/*analogs & derivatives/analysis MH - Polycyclic Aromatic Hydrocarbons/analysis MH - Polymers/analysis MH - Spectroscopy, Fourier Transform Infrared MH - Washington MH - Water Pollutants, Chemical/analysis/*toxicity PMC - PMC1241913 EDAT- 2004/04/06 05:00 MHDA- 2004/11/13 09:00 PMCR- 2004/04/01 CRDT- 2004/04/06 05:00 PHST- 2004/04/06 05:00 [pubmed] PHST- 2004/11/13 09:00 [medline] PHST- 2004/04/06 05:00 [entrez] PHST- 2004/04/01 00:00 [pmc-release] AID - 10.1289/ehp.6719 [doi] PST - ppublish SO - Environ Health Perspect. 2004 Apr;112(5):511-5. doi: 10.1289/ehp.6719.