PMID- 21722693 OWN - NLM STAT- MEDLINE DCOM- 20111207 LR - 20110801 IS - 1873-6351 (Electronic) IS - 0278-6915 (Linking) VI - 49 IP - 9 DP - 2011 Sep TI - Effects of mixtures of persistent organic pollutants (POPs) derived from cod liver oil on H295R steroidogenesis. PG - 2328-35 LID - 10.1016/j.fct.2011.06.034 [doi] AB - Crude cod liver oil and liver oil supplements are consumed as a source of vitamin A, D and polyunsaturated fatty acids; during winter and early pregnancy. Crude cod liver oil however constitutes a considerable source of persistent organic pollutants (POPs). This paper aimed at characterizing and quantifying the influence of POP mixtures extracted from three different steps in the cod liver oil industrial process on hormone production and the expression of steroidogenesis-related genes in H295R cells. Exposure to extracts from crude cod liver oil and from its industrial waste increased progesterone (P4), cortisol (Cort), testosterone (T) and estradiol (E2) production; and among others, the expression of MC2R, CYP11B1 and HSD3B2 genes. Observed effects after exposure to pharmaceutical cod liver oil extract were considerably lower. The type of effects on gene expression and hormone production were similar to those induced by forskolin and PCBs, the latter being the major contaminants within the extracts. Additional research is required to further unveil the mechanisms behind the observed steroidogenic effects and to assess whether the potential risk might outweigh the potential benefits of crude and processed cod liver oil consumption. CI - Copyright (c) 2011 Elsevier Ltd. All rights reserved. FAU - Montano, M AU - Montano M AD - Department of Environment and Agro-biotechnologies, Centre de Recherche Public - Gabriel Lippmann, 41, rue de Brill, L4422 Belvaux, Grand-Duchy of Luxembourg, Luxembourg. montano@lippmann.lu FAU - Zimmer, K E AU - Zimmer KE FAU - Dahl, E AU - Dahl E FAU - Berg, V AU - Berg V FAU - Olsaker, I AU - Olsaker I FAU - Skaare, J U AU - Skaare JU FAU - Murk, A J AU - Murk AJ FAU - Ropstad, E AU - Ropstad E FAU - Verhaegen, S AU - Verhaegen S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110621 PL - England TA - Food Chem Toxicol JT - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association JID - 8207483 RN - 0 (DNA Primers) RN - 0 (Steroids) RN - 0 (Water Pollutants, Chemical) RN - 8001-69-2 (Cod Liver Oil) SB - IM MH - Animals MH - Base Sequence MH - Cell Line MH - Cod Liver Oil/*chemistry MH - DNA Primers MH - Gas Chromatography-Mass Spectrometry MH - Real-Time Polymerase Chain Reaction MH - Steroids/*biosynthesis MH - Water Pollutants, Chemical/isolation & purification/*pharmacology EDAT- 2011/07/05 06:00 MHDA- 2011/12/13 00:00 CRDT- 2011/07/05 06:00 PHST- 2011/04/20 00:00 [received] PHST- 2011/06/15 00:00 [revised] PHST- 2011/06/15 00:00 [accepted] PHST- 2011/07/05 06:00 [entrez] PHST- 2011/07/05 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] AID - S0278-6915(11)00278-X [pii] AID - 10.1016/j.fct.2011.06.034 [doi] PST - ppublish SO - Food Chem Toxicol. 2011 Sep;49(9):2328-35. doi: 10.1016/j.fct.2011.06.034. Epub 2011 Jun 21.