{"refrec":{"BRefID":257579,"RR":"<b>Weijs, L.; Covaci, A.; Yang, R.; Das, K.; Blust, R.</b> (2011). A non-invasive approach to study lifetime exposure and bioaccumulation of PCBs in protected marine mammals: PBPK modeling in harbor porpoises. <i>Toxicol. Appl. Pharmacol. 256(2)</i>: 136-145. <a href=\"https://dx.doi.org/10.1016/j.taap.2011.07.020\" target=\"_blank\">https://dx.doi.org/10.1016/j.taap.2011.07.020</a>","BEntID":249588,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Toxicol. Appl. Pharmacol. 256(2)</i>: 136-145. <a href=\"https://dx.doi.org/10.1016/j.taap.2011.07.020\" target=\"_blank\">https://dx.doi.org/10.1016/j.taap.2011.07.020</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Weijs, L.; Covaci, A.; Yang, R.; Das, K.; Blust, R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Weijs, L. <i>et al.</i>","Englishabstract":"In the last decade, physiologically based pharmacokinetic (PBPK) models have increasingly been developed to explain the kinetics of environmental pollutants in wildlife. For marine mammals specifically, these models provide a new, non-destructive tool that enables the integration of biomonitoring activities and <i>in vitro</i> studies. The goals of the present study were firstly to develop PBPK models for several environmental relevant PCB congeners in harbor porpoises (<i>Phocoena phocoena</i>), a species that is sensitive to pollution because of its limited metabolic capacity for pollutant transformation. These models were tested using tissue data of porpoises from the Black Sea. Secondly, the predictive power of the models was investigated for time trends in the PCB concentrations in North Sea harbor porpoises between 1990 and 2008. Thirdly, attempts were made to assess metabolic capacities of harbor porpoises for the investigated PCBs. In general, results show that parameter values from other species (rodents, humans) are not always suitable in marine mammal models, most probably due to differences in physiology and exposure. The PCB 149 levels decrease the fastest in male harbor porpoises from the North Sea in a time period of 18 years, whereas the PCB 101 levels decrease the slowest. According to the models, metabolic breakdown of PCB 118 is probably of lesser importance compared to other elimination pathways. For PCB 101 and 149 however, the presence of their metabolites can be attributed to bioaccumulation of metabolites from the prey and to metabolic breakdown of the parent compounds in the harbor porpoises.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"A non-invasive approach to study lifetime exposure and bioaccumulation of PCBs in protected marine mammals: PBPK modeling in harbor porpoises","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-09 01:31:36.094838","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Harbor porpoises; Metabolism; PBPK models; PCBs; Time trends","OtherDescriptors":null,"Notes":null,"AnaPub":2011,"MonPub":null,"DateUpdate":"2020-06-19","DateCreate":"2016-05-29","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000295551900006","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.taap.2011.07.020"},"refs":null,"anarec":{"AnaID":257579,"PubliDate":2011,"Pagination":"136-145","XtraPublOfAnaID":null,"ISBN":null,"Volume":"256","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44053,"SerRR":"Toxicology and applied pharmacology. Elsevier: San Diego etc..  ISSN 0041-008X; e-ISSN 1096-0333","StandardTitleSer":"Toxicology and applied pharmacology","ISSN":"0041-008X","AbbrevSer":"Toxicol. Appl. 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