PMID- 22772567 OWN - NLM STAT- MEDLINE DCOM- 20121102 LR - 20151119 IS - 1464-0333 (Electronic) IS - 1464-0325 (Linking) VI - 14 IP - 8 DP - 2012 Aug TI - Bioaccumulation and related effects of PCBs and organochlorinated pesticides in freshwater fish Hypostomus commersoni. PG - 2154-63 LID - 10.1039/c2em10863a [doi] AB - Few studies have investigated the bioaccumulation of persistent organic pollutants (POPs) in Brazilian native freshwater fish. In order to evaluate the bioavailability, potential risk to human exposure and the effects of POPs in the fish Hypostomus commersoni, muscle and liver samples of thirteen specimens were collected in a lake located in the city of Ponta Grossa (Parana State, Southern Brazil). Also, the liver and gills were considered for histopathological studies, and oxidative stress was investigated in the liver. Expressive concentrations of POPs were observed in the liver and muscle, with a total of 427 +/- 78.7 and 69.2 +/- 18.1 ng g(-1) dry weights of polychlorinated biphenyls (PCBs), respectively. Negative correlations between the concentration of several POPs and glutathione S-transferase and glucose-6-phosphate dehydrogenase were found. Otherwise, the cholinesterase activity in the muscle and brain presented positive correlations with the concentration of POPs. The hepatic bioaccumulation of some banned pesticides like aldrin, dieldrin and DDT was associated with various histopathological findings in the liver and gills. Necrotic areas, fibrosis, leukocyte infiltration, and the absence of macrophage centers were observed in the liver, indicating both chronic exposure and immunological suppression. Neoplasic changes were observed in the gills, confirming the carcinogenic potential reported for some of the investigated pollutants. The current work was the first to study the bioaccumulation of POPs in H. commersoni, an important species in ecological aspects and as a vehicle to human exposure to PCBs and organochlorine pesticides (OCPs). FAU - Bussolaro, D AU - Bussolaro D AD - Departamento de Biologia Celular, Universidade Federal do Parana, Caixa Postal 19031, CEP: 81, 531-990, Curitiba, PR, Brazil. danielbussolaro@hotmail.com FAU - Filipak Neto, F AU - Filipak Neto F FAU - Glinski, A AU - Glinski A FAU - Roche, H AU - Roche H FAU - Guiloski, I C AU - Guiloski IC FAU - Mela, M AU - Mela M FAU - Silva de Assis, H C AU - Silva de Assis HC FAU - Oliveira Ribeiro, C A AU - Oliveira Ribeiro CA LA - eng PT - Journal Article DEP - 20120709 PL - England TA - J Environ Monit JT - Journal of environmental monitoring : JEM JID - 100968688 RN - 0 (Biomarkers) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - 0 (Water Pollutants, Chemical) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Animals MH - Biomarkers/metabolism MH - Brazil MH - Environmental Monitoring MH - Fishes MH - Gills/drug effects/metabolism/pathology MH - Hydrocarbons, Chlorinated/metabolism/toxicity MH - Liver/drug effects/metabolism/pathology MH - Muscles/drug effects/metabolism/pathology MH - Pesticides/*metabolism/toxicity MH - Polychlorinated Biphenyls/*metabolism/toxicity MH - Water Pollutants, Chemical/*metabolism/toxicity EDAT- 2012/07/10 06:00 MHDA- 2012/11/03 06:00 CRDT- 2012/07/10 06:00 PHST- 2012/07/10 06:00 [entrez] PHST- 2012/07/10 06:00 [pubmed] PHST- 2012/11/03 06:00 [medline] AID - 10.1039/c2em10863a [doi] PST - ppublish SO - J Environ Monit. 2012 Aug;14(8):2154-63. doi: 10.1039/c2em10863a. Epub 2012 Jul 9.