{"refrec":{"BRefID":58521,"RR":"<b>Chapman, L.M.; Roling, J.A.; Bingham, L.K.; Herald, M.R.; Baldwin, W.S.</b> (2004). Construction of a subtractive library from hexavalent chromium treated winter flounder (<i>Pseudopleuronectes americanus</i>) reveals alterations in non-selenium glutathione peroxidases. <i>Aquat. Toxicol. 67(2)</i>: 181-194. <a href=\"http://dx.doi.org/10.1016/j.aquatox.2003.12.006\" target=\"_blank\">http://dx.doi.org/10.1016/j.aquatox.2003.12.006</a>","BEntID":56091,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquat. Toxicol. 67(2)</i>: 181-194. <a href=\"https://dx.doi.org/10.1016/j.aquatox.2003.12.006\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquatox.2003.12.006</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Chapman, L.M.; Roling, J.A.; Bingham, L.K.; Herald, M.R.; Baldwin, W.S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Chapman, L.M. <i>et al.</i>","Englishabstract":"Chromium is released during several industrial processes and has accumulated in some estuarine areas. Its effects on mammals have been widely studied, but relatively little information is available on its effects on fish. Gene expression changes are useful biomarkers that can provide information about toxicant exposure and effects, as well as the health of an organism and its ability to adapt to its surroundings. Therefore, we investigated the effects of Cr(VI) on gene expression in the sediment dwelling fish, winter flounder (<i>Pseudopleuronectes americanus</i>). Winter flounder ranging from 300 to 360 g were injected i.p. with Cr(VI) as chromium oxide at 25 µg/kg chromium in 0.15N KCl. Twenty-four hours following injections, winter flounder were euthanized with MS-222 and the livers were excised. Half of the livers were used to make cytosol and the other half were used to isolate mRNA for subtractive hybridization. Subtractive clones obtained were spotted onto nylon filters, which revealed several genes with potentially altered expression due to Cr(VI), including an  class GST, 1-Cys peroxiredoxin (a non-selenium glutathione peroxidase), a P-450 2X subfamily member, two elongation factors (EF-1 gamma and EF-2), and complement component C3. Semi-quantitative RT-PCR was performed and confirmed that Cr(VI) down-regulated complement component C3, an EST, and two potential glutathione peroxidases, GSTA3 and 1-Cys peroxiredoxin. In addition, cytosolic GSH peroxidase activity was reduced, and silver stained SDS-PAGE gels from glutathione-affinity purified cytosol demonstrated that a 27.1 kDa GSH-binding protein was down-regulated greater than 50%. Taken together, Cr(VI) significantly altered the expression of several genes including two potential glutathione peroxidases in winter flounder.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Construction of a subtractive library from hexavalent chromium treated winter flounder (<i>Pseudopleuronectes americanus</i>) reveals alterations in non-selenium glutathione peroxidases","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"flounder; GST; gene expression; chromium; glutathione peroxidase;complement component C3","OtherDescriptors":"Flounder; GST; Gene expression; Chromium; Glutathione peroxidase; Complement component C3","Notes":null,"AnaPub":2004,"MonPub":null,"DateUpdate":"2018-05-17","DateCreate":"2004-03-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000220361800006","VABBcode":null,"OpenAcc":1,"DOI":"10.1016/j.aquatox.2003.12.006"},"refs":null,"anarec":{"AnaID":58521,"PubliDate":2004,"Pagination":"181-194","XtraPublOfAnaID":null,"ISBN":null,"Volume":"67","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42203,"SerRR":"Aquatic Toxicology. 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