Document RJRLp6R6979Kok24yobMZRObB

pt MgrianenD0ne8e4 s To Sn- "N0SCIoCn5OFPPa1Tra@vEA2Pr"AiTor2E@tAi0Dawk0coCn8a>r AL226-3pg Taft/ Deborah McCrea / Legal Assistant a 125 asSr&ehe aotke 1(51050 Cincinnati, Ohio 45202-3957 CAE 355s Fan 10381 coos www.taftiaw.com / mccrea@taftiaw.com 8 : 3 he od3 = tEroeltsRehoeevterdneueaecSse0ao)roiansemmtoaCintersgcus.olarard2t3o0n.iDfionscloBhbsresurorece:aAmosompmrmooasfvniUidoynedSof(onrhingnoTrgepaaspnEuaarylyCieaeuOulanvtNaoansts,ooaaitcrasln(mdaftasems)or essed rte. ie smmaessssaage geedmaseyorcoeansamniianofscoonmotaatarioannstTonaittrirre.eyGnelaesnstvoopsyeavhedgaedssteoorase3yorfwtTosropk ropomiaacdtasnodaree e FSraonme: ocaonnoniceop3y,202a00@8lf3i.ca5omwPH[malo canonopy20aGactoam] TSourbjceectn0,41a3t/2o00r9 eter To PADckes Center ES CONTAINS NO CBI 2 RR, am 189 8 Shiv nog ps 25 Wut Set,SeC 1800/Coocinnc a, OHo5Co2ba0ro239n D5oi5n1a3.38p1 2o83l83a51r3.3i8etn0ts20eF5torswo8 naottSemoiUonP [c A rn--g--sn ---- - June 12, 2009 FEDERAL EXPRESS EPA U.S. EDnovcikreotnmCeennttearl, PMroCte2ct8i2o2nTAgency EPA 1301 WCeosntst,itRuotioomn 3334 Avenue, NW `Washington, D.C. 20004 Re: Submission to IRIS and AR-226 Database For PFOA/PFOS: 'ORD-2003-0016 EPA-HQ- To IRIS Database for PFOA/PFOS: In USEPA's response efforts to tcoontshiedNeortpiecrefilsusoruoeodctbaynoUiScEaPciAd o(n"PFFeObAr"u)araynd23p,er2f0l0u6o,roroecgtaarndei:ng `sulfonate ("PFOS") within the Integrated Risk Information System ("IRIS"), 71 Fed. Reg. 9333-9336 (Feb. 23, 2006), we are submitting the following additional information to USEPA for inclusion in that review, and for inclusion in the AR-226 database: i Fenton, S.E.,etal., "Analysis of PFOA in Dosed CD-1 Mice Part 2: Dispositionof PFOA in Tissues and Fluids From Pregnant and Lactating dMoii:ce10a.1n0d16T/hje.irrepPruoptsox,." Reprod. Toxicol. 2009.02.012; (2009), 2 dvMoioiln:k1Eo0hf.r1Be0rn1es6at/se]it.nfr,eeep0dr.ioSnt.go,xW.eot20ma0le.9,n.,"0P3"o.l0Ry0ef1pi;urooardno.adlTkoyxlicCohle.m(i2c0a0l9s),in the Serum and 3. xHipnoessu,rEe.P.,oeteralf.l,u"oPrhoeonctoatnyopiicc Dichotomy Following Developmental cid PFOA) n emale D-1 ice: ow E Doses tP Induce Elevated A( Serum Leptin and iF Insulin, and OCverweMight L in Mid- Life," 304 Molecular& Cellular Endocrinology 97-105 (2009). CONTAINS NO cB} nesurazs JPuangee 122, 2009 Cdl oe in RAB:mdm Enclosure cc: Gloria Post (NJDEP)w/ encl.) (via U.S. Mail) Helen Goeden (MDH)(w/ encl.) (via U.S. Mail) Lora Wemer (ATSDR)(w/ encl.) (via U.S. Mail) sen ps Accepted Manuscript `Title: Anoaf PlFOAyinDsoseidCDs-1MicePart2: DispositionofPFOA intissuesandfluidsfrompregnant and lactating mice andtheirpups JLT L-a L5 NAauSktahaloylrSays,m:WaSh,uizAtaemn,nyAeDn.Ed.DrFeeewlnntBos.nk,LyiJnJedssostirncoamPL,..MSRtaearinnkkeoJr,,BSSrhuioyjnniaP.rF,H.ines, Syrago Syliani E. Pecropoulon DoPOl:: Reference: GS08o90-i62318(00e9)p.0r0o0t14o0x-0290019.6020/12 RTX 6230 Tosppearin: ReproductiveToxicology . RReocvesicvdeddadtaee:: 240222.0200909 Accepeddue: 25:2.2009 Pleas cit this atc a: Fenton SE,Reine JL, Nakayama SF, Delinsky AD, Sanko oJfPfr,oRmHiOpnreAesgniEanPn,tDoWashneiddtelCaDcSt-Sa,1tiLnMgiinmcdiesctePraonamtndA2B:t,hDeiSistprpoyosnpiasdr,oMnRJeo,pfroPPdeFutcrOtoAipvoeuinlTootuxiisSce-ocSlsEo,gaynAdn(a2fl0yi0s8d)ie,s 0i10,1016) reprotox200802012 "ATshisa sisearvPiDcFtoofiulrofcausntoumneerdsitweed mraenupsrcorviipdtintghatthihsaseabrelyenvearcscioenpoldftfohr mpuabnluisccartiiopnt. ber`Tfohorersmeamniutaisyscrbpieputdiwbsiclloluvienirdnseeidrhsgwohieciaocdlphycfeodorilmtd.iPnalgfefeaycspteetsnheoettcieontrghi.ntatdn,udrariennvgidetawheeopgraolhdeudcritcieloinlmeiprrspocrheosotf 36ply tothejournal eran. RSE CE TIE ns eee sas 1 AnalysisofPFOA inDose CD MicPart2: Dispsition of PFOAinGusand usfrompregnantand catingmicandthelrpaps. `Suzanne E. Featon", Jessica L. Reiner", Shoji F. Nakayama, Amy D. Delinsky', Jason P. Stanko", Erin P. Hines", Sally S. White,Andrew B. Lindstrom", Mark J. Stryoar, and `Syrago-Styliani E. PetropoulouTM * Repodscive TasiclogyDivison NedoralHeathandEviromSemctes Rnesiearlch Laboratory, ORD,US EPA, MD-57, Reseach raParknNC2i711, USA *Oakridge InstinuteforScienceandEducation (ORISE)Research Pariicipani, Human ~ExpasreandAmosphericSciences Divison, NedoralExposureReseachLabor, ORD, Us EPA. Research TaParkmNC2e7711, USA manExponentAmospheriSinesDivision,NetnalEpos Research Laborato, ORD, US. EPA, Research TinglePark NC271, USA Curriculum in Toxicology, Universityof North Carolina, Chapel Hill, NC 27599, USA "HCeuartrhe,ntmaddrest sf:oDriDviirssieoansoefCLaboorataonnrdyPSrcoieenvceelsn, ,NaAtilonial,CeGnAter3f0o4r1E,nvUiSroAnmental Comspaoonrddiasnsg: URVSei5sieuaEDrrvEzT oFiraeanann,PPaPhakg tD,c.NiCo2en77A1gcyUSA FTax aolsess) `E-mail: fenion.suzanncfiepgoav.. 20009 [ EEE TEER Ese - 2 Runsogte: PFOAdisoasctatoionn Avbrovations ANOVA saoftvarisance BW `bodyweight pessoas Lop lm ofdetcion Log imitofqunintion WS ms ectonse FAA petioroaylacd PFOA peorocimecidc PROS peforocme inne PD pestis SM sandndocofthomenn VLC ui petoinidmchroomatocgraephy 20m Pao 20132 ps - XoTNE ie 3 Absa Prvions siein icewith liplegaolexpo 0 perros cid(PFOA)demons mame os depen growthad develope fics `whichappearedtoworsen if offspringexposedin uteronursedfromPFOA-exposed. ams.Tocasetsdisosion ofPFOAinthepregaanad cating ama her offen,imepregoanCD.1 ic ceived sige,0.1, ,or mgPRONG BW dose(425d rv)bygavage ongainday17,Mataedpropniaslnd tissueswere colleovcetrteimde.Pupsexhibited signifbigihecr saernumtPFlOyA cononrionsthanteresecve dus,ad ibyburden oes fr inh ladat ys,re egiss ofdose.Toediofsilkstna i PFOAvn aried oy osead ie,btwas pial ces of 02,These dtssgotmt ili bsnlPFOAexposurerou in mi andshou beconsidered nikassent [I -- Keywords:PRON: erasmoi us io: ilkmammary gd: doses dposion 2202009 ---- . re EON er perio ATA) + StS ron-- A --H -- ? ----------------------T 6 carpeting,andupholstery,andthestabilityofthecarbon-fluorinebondhavemadethem 7 + ckpamsmoephyemd asetopeekl g ee ubiquitousinthe environment.Thepredominantrouteof exposureinNorthAmerican 1F0ri rn A rere PFAASarcpersistent,readily absorbed,notknowntobemetabolized, andare 12 13 fn eon mt ome tis el9e65dint,55) 15rSoeatn 1 or A 4 OL25 0R 41 RY OA HA 16 Toe iri in reterbot 17 ratesortettn AOA 1+ thdt ,A etyy iteri we---------------------- 20 donorsindicated areductionof60%inbloodperfluorooctanesulfonate(PFOS)and 25% 521 yodwimcttyi m ms cr e EAS inblood PFOAlevelsbetween theyears2000and 2006{10). However,whilethe 23 reducedinthe USinrecentyears, it inotclear that perfhorinatedcompoundsproduced sn rte p10 : 5 1 ncthorcoun wil nt contin ts her te US kel or oe 2 comtiowboradsiegoosn, 3 Michoftherectbestffsreece onPFOA in ic,commnly 4 ssidvith stim goss of 001.5mg ROAg BY,basoudon 5 devclopmenaloie ch deredmal weigh enced esl 6 aviv aby weight, well ter ft:ft chspcr del,marary 7 ndshore, mdccssiveweightgin 1116,Bay posaladverse beh Observations rompedses arinin effect of PFOA on mane aonsnd 5 both ffs fhe sin fio,Whe tl (14 desribodreed pte 10 ftroiaion on osedy(PND) 10 amy endsof CD msedams 1 exposed 5 mgPOA BWfrmGDI,30 wellasdelaysi piel invlicn 12 snd emis in ilk rotigee crs on PDR0. In dio, omeoffspring 1 of xpos dm ilyedsted marypict rcin ndgh on PDI 14 andPND20. In across-fosterstady utilizingCD-1mice, Wolfetal.[16]reporttehadt 15 althoughin utero exposure to 5mgPFOA/kg BWfrom GD1-17inthe absenceof 16 tocion) poe wes suc postal body weigh ets1nd 17 devlopmenat ays opsri om bit weanwsaftaly inthos oh 18 introsd onlycps, sen se [15] eveshow ha 19. unexposedsonate taal ose10 PFOA qui developedmammary god 20 growthdeficitsandthatcontroldamsnursinginutero-exposedpups (damsexposedvia 21 pupgoamin) demons showedfran oftei ov maar ans 22 was evidentinwholemountpreparationsofthe tissuebytheS*dayoflactation.These 20009 [re : ++ wa eiri---- ------------------ 6 + sseere--r--rT------------------r--it--n--t--n :o er--m----------------------T------ ? rerie--------p--T-------- n8;C m-- ete-- ---- ----------------T -- from1996-2004inSwedenat 8concentrationof492 pg/ml (0.492ng/m; (18),and 8 11 growthindices in childrenwithmediancordserumlevelsof1.6ng/m)PFOAintheUSS. 12 [20]and 5.6ng/mlPFOAinDenmark(21). Whileonlyonesamplewasfoundtocontain 13 PFOAintheKarman etal. 18]stady, theseresearchersreportad asignificantmilkto 14 serumcorrelation(7 =0.7-0.8, p<0.05)forotherPFAAsdetected. FurthermToaroee,t 15 al. [19)suggestedthattheremaybepreferentialpartitioningofPFOAtomilk compared. I ete----------r---- ------ 16 tootherPFAAS andalsoindicatedthatwomenwhowerenursingforthefirsttime. =o19 -- e---- ---------- ------ -------- concentrationwere nottakenintoconsideration.Theonlystudythatbasevaluatedthe 22 Althoughfemalerats are knowntohave &serumPFOAhalf-lifeofonly afewhours[23], 23 unlikemicewhichhave a%-lifeofabout 15days (13),thestudy[22)indicated -- ens p12 , 1 concentrationsinratmilk approximately 10timeslessthanthatofmaternalplasmaand 2 thatthemilkconcentrationsweregeoerallyofthesamemagnitodeastheconcentrations 3 inpupplasma. 4 Tessas brit 5 PFAAsinanimalstudies,coupledwiththeirdetection inbumancordbloodandmilk, 6 supportstheneedfor examiningthedisposition of PFAAsduring pregnancy/lactationin 7 anappropriateanimalmodelinordertofullyestablishtheassociationbetween ronson xpos adafro ffs.Whi erstehavecain 5 phumacokineisof PEAS ilindsoins, ledtcentlycis nh 10 disposition ofPFOAinpregnantandlactatingmiceorthei offspring.Werecently 11 developedananalyticalmethodfortheanalysisofPFOAin mouseserum,urine,milk, 12 mammarytissue,amnioticfluid,andpups [24].Utilizingthesemethods,we reporthere. 13. tan nthe inionof PFOA vrsmisopregoant nd acingCD-1. 14 mice awell heserumconcen dolbodyln fhi offiprin,folowing 15a single poeofPEOAonOD17,Thesedeawilllowstorue Wo sin pr spis ed SA w i" w 2 2 2n0m009 Pave 7e32 pis ' ' | 2Materndimaetlhosds 3 21Chamicts 5 POA (ummaniumsks290% pu),wdinanimalcons, waspurchased 4 fiom Fh Chemical(Scien,Swix. FORwas compel disohvdby 5 anionindno apwt inwhichPFOAwasbelowte eveofdee (LOD 6 050g focwate,snpeered shot rir we ' 22dnime 5 Alon is wee conduct provedby hoNoon Hess nd. 10 EnvironmentBf Reese Laborstoryatta]Asi)CaeadUse: 11 Comite.Confmed medpregrac eseCD mice (100) erepurchasedfom 12 CharlesRiver Laboratories(Raleigh, NC).Pregnant mice werereceived atthe U.S. 13 EPA'sLaboratoryAnimalCarefacilityongestationday (GD) 14(dayofsperm-positive 14 15 designatedasGDO).Uponamival,mice (approximately radonlydistintedsong PFOAwestmeotgroups.Th 12 weeksold)wereweighed eywerehosed svat and in 16 polypropylenccageswithAlpha-dri(ShepherdSpecialtyPapers, Kalamazoo,MI) 17 beddingandnestingmaterials.Theywereprovidedpelleted chow(LabDiet5001,PMI 18 19. NPutFrOitAiaotncIntoeronatcioenanlLiLbCeal,otBwrhieenotLwOnoDos)d,,MAOv)ianadftalpiwaetserwadeelicbiotnumt(rbootlhfecodorntained 20 tcmpenture(204C)adreliveBid (40-60%), ndkeptmda 1:10 lig 21 dorkcys.Mic (r-25doegrou)recivedsith wate veilor single oe01, 2 100r50mge) of PFOA mer; 10 byon evagean GDI. 220009 Page8of32 , s r------A t---- 3 } rmoekt.me--t----mt--w ----ri ----d--nt -------- PND (dayafterparturition),andPNDs2,4,8,11, and 18. OnGDS, 24br afterthe ?6+ crmpaein tmose--tom--eor--es--sv--n--m--at--eo glandwerecollected.Liverweight,totalnumberoffetuses(live,dead,orresorbed),and. #5 seeoeerr--et--te--i--bm----s--o i -- " c-- rm ---- F 3 vr wpmn--TP -------------- 4 Te --------rm --------------a --------. 1i eraomems eooenst eeeetm Anr. ovr e--t--ee------------------"h--r--r ---- 2r#1T ns--e------------------"-------- ---- PNDs4,8and 18(n= dams/dosegroup),althesametimeofday. sod nt p15 EER EETE IE ie 0 1 collectedonPNDs2,8, 11, a0d 18folowing a 2b separationof tepupsfromthedam 2 endam oxytocinstimulus,ThemillwasvacuumaspiredusingJow,pulsatilepressure, 3 into:pro-weighedmicroccatifig tbe.Collctedmilkwasweighedsodfrozenwil 4 analyzed.Biologicalsamplesiochodingurine,damaodpupsean,amniotic uid, 5 mammarysuc, wholepup,andmilkwereanalyzed orPFOAusingthemethods 6 described briclybelowadinourcorspanonpaper[4]. 7 8 24PFOAsampleanalyses 5 Briel,th analysisofPFOAwasperformedusing aWaters AcquityTM Ulra 10 Performanceliquidchromatographysyteminterfacedwith a WatersQuatroPremierXE. 11 plequadrupolemassspectomedsr(UPLC-MSIMS) (Waters,Milford,MA). Eiter 25 12 or SOLofserum ndamaioti fd(50 ul.usedforcontro),20uL.aliquts ofurine 13 andmilk,and300uLofpupormammaryissueboxmogemateswere lizedasstarting 14 mateinfo hes analyses. Sumpleswere extracted,purified,and concentratedordiuied 15 exactlyasdescribedbyReineretal. 24], 10-40uL.oftepreparedsample dependiogon 16 theconcentrationofthe origoalexposure,was injctedaodrunonthe UPLC-MSMS 17 (24).RefertoReestal.[24]formethodperformance ndqualitycontrol sips hat 18 wereperformed fomare theprecisionandaccuracyofthemethodsused.The lit of 19 quantitation (LOQ)for thee experimentswere g/ml (serum), | ng/ml(amniotic uid, 20 urine,milk), and 1ng (whalepups,mammarytse). 2 2 2 2700009 Page 100132 pts : n | 2 25UrCa crnatitne mierens weeemecan onbisn0carb oPOAninusse 3 4 u2r0inLeO.TDh0e0Qu1a0ntiChromndcrewastiniinneasss5a1y0(3Bi0o0AssanyShyTsthemys,Hoayfwaxrcdh,cCAo)sexhpibeitweds prepared sdcad 510 msi or pl (vepceprof 20 6 samples)accordingtothe manufacturer'sinstructions.Theinter-assaycoefficient of 7 variation (CV)rangedfrom 4.0-6.8%andtheintra-assayCVrangedfrom0.3-16.1%, 5 wilhan avengeof 49%.Thesay stadtsry ranged om 028.4% sory 9 ROA repo as conocercent cocetions (og PRON cet) W126 ComputatndiSotintess 1 Ror PRO containbvi tedfr dicorcoscnnion 15 ators,awela tine els ngs io) he weight of dime vated 14 15 coognenmaanimomnasryeiosensndswhgehp.opA).vSerrasma,,paniroitadpmsilkirnidiwiannopai,os 16 17 wdeertemcianlceudlatiendgwithrSoASG9L.1(SAANSOIVnsAti,tuiteh;CarDy,iNC)t. Stastitstiocaslsciogmnpifairciasnocne5wads. 18 if vassts005 n n 20mm [RP p17 . 2 [ER 2 3.1 Biological Outcomes 3 `This thefirststdytoreport ingle dosedisposition ofPFOA inpregnantand. 4 lactatingmiceandtheioffspring.Thedoseschosenwerebasedonprevious reportsin 5 CP-1mice 3, 14,16] demonstrating developmental beakthoutcomesfollowingmultiple 6 gestationalPFOAexposures. Asingle PFOA exposure on GDI7didnotaffect the: 7 mamberoffivefetuses (an GDI),implantationsites,or live-bompups (on NDI),or 8 dam body weights(daanotshown).Unlikestudi usingmalipl gestational PFOA 9 exposures [13, 25)therewasnochaagein pupbodyweight,dam liverweight, anddam 10. liver:BW ratios,withinthe PFOAdoserange administered in thisstudy(Figure1). The 13 rise indam liver:BWratiobetween GDI endPNDI,whichpersisted until weaning,was: 12. duetothedramaticdecrease in bodyweighta parturition, as tis singlehtegestation 13 PFOA exposurefiled ochangemean iverweight i exposeddams,compared control 14 values,at anytimeevaluated. 15 16 3.2 PFOAConcentrPraitoritooBinrtsh " `Themeanconcentration ofPFOA inthe amiotic fluidandserumoftheexposed 18 dams24hr afrexposure is shown (Figure2;amiotic uidcontrolsaverage3.8ng/mi). 19 Theaverageconoentation ofPFOAdetectedindamserumwasabou twicethe amniotic: 20 fiidconcentrationatcachdose evaluated (amniotic lidwas 68.,51.8,a0d 40% of 21 dam serumlevelsat 0.1,1,and S og PFOA/Kg BW,respectively). Acomparisonofthe 22 amountof PFOA inencotire GIDI fetus (bodyburden/pupstandarderrorofthemean 23 [SEM]; Figure 5)the1GDoIS PFOA concenitnarmnaiottiic oind (ng/ml; assuming 1 2202009 Page 120132 pis | ove) val 2.3.1, nd 274d ceed PFOAin heppvs. the id. 2 in iciva coi ner fr 01,1, 3mg oegraepee 3 4 3. PFOAConcerinttheoDonss s Theera aad inePFOAconecsrions weeeval i umdst wre 6 ning trafpessimaly10pup PNDIcai;minima op osavrie). 7 Aexpected,da senconsindte ighstPFOAconcttons ofanymarx 5 att, egodss (igs; sr cont <Q).Teri in rnin 5 era PROAwitocesingdumexposesvaspropor othe chao in dose: 10 delivered,realsofsage ofhin. en 9-04nd 5.1 ese 1 between01-0 migand 1.050mphexposesrpectivh). 12 AooomePFOA exposof0. mgsproducedsnavngedam scum PFOA 13 14 concentration (Figure which vas eed 0 3A) of nave 14 of4-22 6 mgd ng/mlat 24 and 48 hrafter exposure,respectively, rhekof Rion(PDS), odd 15. risnto mesmo 123ng byPNDIS, imewhentepps prayclrnk 16 came fo edtchowad os ilkThe U-apdseuconcn uve obi 17 inthe.mgPRON dos rovpwsa prescain he | dSmf xpos 3% porn 19 20 bougAhsbsehocwonnicneFnigsuures3of(PA-RCO;cAocntnronlurbienceaonmdpmraemmdairygylabnedePeFnOAser<aLOQ)i,oe, 21 ndmammary sue, dosto he iffrnc ntvas cident ches PFOA 22 wasbeingexcii dum inthanvas presen nda scum,ndth array 25 ieconned consider amon of PFOA.Whi shaped sponse am 220m009 [Rp pis (oSTE TTTS oHRn | 1 excrionfPROA roe) as ota proouncd1 ifeu, amyGs 2 mons ongUnhped ese, ith lowestoxenmead ar. 3 ep ofcon,and sift e nconscomiaprtasia PRDIS eons, 5 6a UshWpheedncaaviero ed milv k PFOAe ats em rAvdaee id (iFnTn gle315,t hecopntcol. LrOe)o,f 7 5 PFOAinmilk (compared toserum)was substantial.Comparing the milk concentrations toecoset iced dams concen ye), untof PFOA in 5 ik conten nga rom 1101 2 tf der OAsos dose adie 10 esperodyofction onwich ilk PFOAwas rdbd3 port 1 nfo oni esos.The sumPPOA twas rst cayad 12 cain PND? andPDS), agin from 15.56% ns of 396 yd26%1). 15 vhlcsar he ekof ion(NDSsd 11), heFROArill do gedfom 16 10.250on 1779). Twn possibleto smely man vl of ilk 15 16 obtained staspiration,butprecise weights were compared. On PNDs2,8, avengewiht ikondvi spinofcos miewasO72, 11,and 01906, 18,the 17 0.2547,and0.0457g, respectively, demonstratingover a 3.5-foldincreasein weightfrom 18 FNDZ1a 1and 5.646 dpSomPADI 01, w 20 3.4PPONConcenrtons hePgs 3 pen PRO cocinnvas votedonPND 14,6, 18.1 22 compuing heversPFOAconan aPND!pup. irpcivdes 23 (ipa44; wholcool up ndoti rm<LOQ), peedht ccuing 20mm pom thet p20 R STTT EE Re san : 15 1 popseramPPOAcocoa erspin igh then hosemessrdi us, 2 regardlessof dose(<0.05).Althoughpupspossessed asubstantiallyhigherserum PFOA. 3 concer thandas, he ifsinp nddam lodvl hose asof 4 updevelaospcommiedrnblte Regofahors ifdieclese,besghesnd 5 clout PFOAinp srsefleced ncn exons,proportional due 6 ought actin (Lc,men104dsd43-dnreses wen 01-0mg 7 and 1.0-5.0mg/kgexposures,respectively). 8 Unliketheir dams, pups did notdemonstrate U-shaped serum PFOA 9 concntaion ives Figur 45. Popsr POA snosatios conned 0send 10 thesvgca semPFOAconestrtion vem,ul NDISwh thpupand 11 damconcentrationsapproached1:1. When the PFOAconcentration(ng/g)wasevaluated 12 in wel ie(upsnd Fire asl) deine in PFOAconnie vas 13 dtctove ime,cos los. However benthe ply increasingbodywight 14. of he opswes ken to consider to alt het atof PFOA inh 15. ectshownin Fir 1), complydiffevendvas nod Fige right 16 pancls). Regardlessofexposuredose,PFOAbodyburden (adjustedforweight)rose 17 throughthe peakoflactation andhadbegun 10declinebyPND18,demonstrating an 18 inverseU-shapedcurve.Whentheadministered PFOAdoseandmeasuredbodyburden 15. imwhoops odywight keto lfc)wrcompared oe distr 20 PROAmesure PFOA io wes 0 ong propor tonghont cain, sod nike 21 temo epor fortmsdpu sn PFOA. Mes byben sof 132-4 Zang 11078) sd 43-00 (age 32.1) ses between 0.110 hgmd L.0- P)23 5.0mgkgexposures,respecwteriedveteerlmiyne,d. 2202000 [ p21 16 1 4.Discussion 2 "Thesedataconfirm thaton aconcentration-basedcomparison,gestatonally 3 PFOA-exposed pupscibite asigificantylargersemPFOAloadtha thir aan. 4 Thatsubstantial scrumPFOAloadinpupswasevident 24 hrafte asingleexposure,aad 5 wasapparently due oblood-boroe (imasplaccotal)transfer.Anotherimporantdiscovery 6 istheU-shaped PFOAconcentrationove time,regardlessofdoe,iathedammammary 7 tissue,milk, andserum.Thisunique PFOAresponsewasook delctedin pupsof pup 8 serum,andwasevident1a less extca inthedams"urinaryexcretioncurves. However, 9 whenPFOAbodyburden inwhol pupswestheustofmeasure, an inverse U-shaped 10 curvewasapparct, an the PFOAburdenofpupsisproposed increase due 0 ilk 11 bomePFOAintake. 2 "Thedeclineinconccaraionsecainthemilk,mammaryandserum U-shaped 13 curves isbypothesized 1be ue obydro-dilution associated with increased bloodand 14 milkvolumes. Severalphysiologicalconditionsarcchangedduring cation thathave. 15 beenwelldocumentedinrasanddiceyrelae 0mice 8 heirlactationperiodis ofthe 16 same eogth. Adecreas i otal plasmaproteiosdu to increasedblood vohune,cardiac 17 ouput,andbloodflow focetintissues,suchs themammaryglandbasbeen reported 18 inrat 26, 27).Elevatodblood volome idue toincreasedplasmavohume [27].Milk 19 yield(he) in aswasreported 0reachitspeakby PND 10 (27)andtherat mamamary 20 glandreaches itsmaximumsize(ss% bodyweight) byPNDIS(26),withastepis in 21 sizefomPNDS-15. Ratmammary lendbloodflowandvolumeofmilkproduce re 22 dirctyrelated, whenmeasuredonPNDIS [26], Totalserumproteinsaelowerin 23 Ictaing rats thtthosemeasured in on-lciating us (27), andin humans,serum 2202009 Page 160132 p22 Ee eT SECR : " 1 albuminconcentrationdecreasesduringpregnancyandcarly lactation 28),Further,at 14 2d postpartum,th cardia outputoflactatingrabbiswas30%higherthanthatin on3 lactatinganimals, andthemammaryglandwastheolyorganshown 0increasein 4 weight,relive obodyweight 29). 5 Although completstofdatathatcouldadressthe cxactrezsonfortheUs 6 shapedcurvesduring acationwasnotcollectedinthisstudy,the aspiredmilkweights 7 didreveal adramaticincroasefomilkvolume (assumedduc tweightchange) rom 8 PND2uptothepeakof action(PND).Thisdramaticchangeinvolume (weigh) 9 mayexplainthedecreaseinmilk PFOAcanceatrationseenbetweenPND?andPNDI | 10 PFOAalsoappears 10conocotrate iserumandmk ne the odof tation(PNDIS, 11 forexample)whenpupsarecatingmorechowandsacle less fin.Mammarygland 12 bloodflowbasbeen reporid deceaseby alin 24hrperiod,whensuckling at 13. offspringar removedfromthedam (26),and hisfllinmammarybloodflowis directly 14 asocisicdwithdecreasedcardiooutputnd94 bloodflowusedbythemammaryglen. 15. nth stdy aprecipitousdropjnweightofmilkcollectedbetweenthepeakoflacaion 16 andPNDISwas noted,indicating arapiddecreaseinmilkvolume.Therefore, theUs 17. shapeofthedam PFOAcurvesarcproposed tbedrivenbyphysiological dilution and 18 conocaiation ofthe PFOAloudover th periodofcation,reachingthegreatestdition 19 atornearthepeakoflacuationwhenthemilk volumeproducedbythedamand 20 consumedbythe upsisth grstst.Increasedconsumptionof milk upto PND! ikl 2) dirtycontributedtothesccumultionofbodyburdeninthepupovertis iestage. 2 Asignificantcontribution ofmilk-bomePFOA ansfe inCD-1micewas 23 detectedinthes suds.Prvious reports rt 22)andhumans(18) ave stimaied 2202009 Page 170132 EE p28 TCH TCCNs : 18 1 thatthedamPFOAmilliserum distribution atowas0.1and0.01, respectively. Inthe 2 presentsay,thedisrbutonratorange omslightymor then 0510.0. inmi, 3 dependingondos,with he vestdocetestddemonstratingthe highest tio ver 4 time. IfthemilkPFOAconcentrationshedbeenmeasurednearthepeakoflactationonly. 5 (days8-11),the0.1milkseradistributionestimatepreviouslyreportedforrasinmid- 6 location 22]mayhavealsobeenpresumedtru inmice.However,attwopodsduring 7 lactation (caryandIte)spikes of increasedwillserumratiosappeared,egadiesof : 8 dose,with asubstantialpeakinmilkPFOAconcentrationsonPND2.Althoughvolumes 9 ofmilklargecaough operformsoa measore prosto PNDZwerenotabletobe: 10 obained,wesuspect,bsedo thesignificantPFOAconccatratons ithePNDI 11 mammarylandthtsubstantialmilk PFOAcopocaraioswouldbavebee evident 12 PND,aswel,prayde obeingcondensedinsllmilkvolumes. 1B InpreviousreportsbyLau (13), Wolf(16],White [14)andco-workers,decreased 14 bodyweigh gainandaconstamoralitywere evidentonseveraldysjustafterbirth 15 CD-1mouseliters gestational exposed 0 3mpgPFOAaodhigher.Inc,ina 16 cros fosterstudy (16) demonstratingdecreasedbodyweightgana 3mg/gfrom in 17 weroexposure any,significantdecreases inbodyweightganwere detctodinte 3 18 makdosegrouponly when neroexposedmicewer aloallowed 0 urefrom a 19 PFOAexposeddam, Even stmgs,terewaspoevidenceofdecreasedpupbody 20 weightorneonatalmortalityinthecurrentstudy,following asinglegestationalPFOA 21 eaposur.OurPFOAmeasurements inwholepopsindicatethatthePFOAbodyburden 22 accumlates incary Ife,3dbegins adeclinea pups usr,opentei yes,andbegin 23 toeatchowanddrinkwater.Ourdatsandthosedemonstrating deleterious health. 220209 Page 180132 pe : 1" 1 outssgthemilkofgana PFOA-capose mic ws jorsomes 2 ofconinedexpose otiscompoundfr hedevelopingis. 3 Asexpected,rediffrac indamsndpupsemPFOAconctios om 4 thosepreviously reported [14, 16]werenoticed,andthosedifferencesbringtolightthe 5 issueof singlevs. multipledosekinetics.Asnotedfor PFOS, singledosekineticsmay 6 ifrbanal om hoseinvolving pet does 10), once dependent 7 hingesinclernccaneindiscepaciesbeensigesnd peste dose + Kosi. 9 Alimiedumberofpdemilgial sts ev veldseiadnsbwesn 10 heathote ithweight hdfc)and ond oodorment en 11 PFOAcocentaionin mans[20, 21), whictesis iletodetectsoins 12 with laterdevelopmentalmilestonesininfants [31]. Severalstudieshavenowmeasured 13 PRAASin hnml [17:15, 12, 3,however olyonestd as en beto 14 spasm themilsr relics of PFOApast[1], Thepred 0.01 15 (1/100")relationship was determined from s singlevoluntarily contributed sample at 3 16 weekspopu Acotiog ohmow ilkserumPROAditbutionaveri tat 17 wereportherin,theves porto on human (15 nd i [2] ayn be 18 representativeofthePFOAdistributiontomilkthroughoutlectationinthosespecies. 19 ncooduion,these sisconfmedsodSher definedconsidersPRO 20 exposuresto mouse offspringfollowing asingle gestationalexposure. They also 21 demons tsscum heal avertininwhlepps,which ilyeas 2 rom lorePFOA, xpos hathdpeiuslybn cpl assedin 25 aberspcin.Asale0.1mpg PFOA xpos pga msened 2n0n09 [Tr p25 1 circulatingserum PFOAconccotaion of44-216 nf indamsand 117-326npnin 2 pups valuessila oorlower hanserumPFOAconcentrationsofchikdcathat were 3 scsidetaly posedvia DuPoutproductionpactemission (34). Becaseofevidence 4 115,35)demonsrtiogneonataland cothealtheffectsfollowingdevelopmental 5 exposure o PFOAjomice,sociatedwithhighercirculatingPFOAlevelsthanthose 6 reportedhere,continuedstoiccvalutin exposure-ffoctetonsipsarcamo in 7 chien. 8 5 10 n 2 13 Adaeidgements 14 Theauthorswould like othakDrs.Barbora Abbott(USEPA,ReproductiveTuxiology 15 Division)andChester Rdigoez(NationalCenterforComputations Toxicology, US 16 EPA)for thei constractive criciamsofthismanuscript. Weacknowledgethexcelent 17 careoftheseamimalsbyNow Year Tech,loc(Rest, VA).The esearchin isaril 16 basboc reviewedbythe NationalHealthandEnvironmentalEffectsResearch 19 Laboratory,USEaviroamentalProtection Agency(EPA), odapproved(orpublication. 20 Finding inthisreportar thoseoftheauthorsndapproval docsnoii isreport 21 22 reeflenctsdEPAopoorlrirceycs.oTmhmeeeunsdmeatoiefonrfnaoderutasem.esorcommercial produc doesnoconsiaie zn 2 2102009 Page200132 p26 EE NIE ee : 21 1 References 233 SS(b1p)varUtiSi.ppEPnurvoiogoavnmimeoopAtpdiPnreopstocsbibooneAglSeanpocy,sAL noiounnncm.en2At0k0of6r)hceasv2a0l1ib0El1Oe5SP.FOA 75 L(a2 WMiEAnndersn,ad11.BuKtBs.hWoitl,lS.aC,.CPheansgt,Do.nG.Fawrrs, GnLd.Keewvodyh,Jri, C.n 150 onionsand odesofsion, ToeSe. 103 AREY. D1 C.LanKC.Ano,C.Hodes,D.Li, A liteHuchessod.Sd, 11 Peforsallyacids arevi ofmoaiog nd colon dings,To 51,99 1181254 (2007),366-394. D(8u1chotGfWa.sdOlLen.,Z1ov.eB,aRrisf,D..ofsrsemn,mLVi. FirooeflpircherAeMs.sacnaclefo,1n.tc, i11s67 Vpeteer,EomirornHeos bPwerdspoefo1ar5sGonOcaNmst1e29a9e1r30ne5dhioroochmnipodtucieon 3F1il0l51H5i)ngrbilTiro,dBl,aL Hiorcoown,mMu.ntWoxrpth,1.0PSHcOhSeiie,PFLOT.AC,oRwik raand2K8. 2008), 2354 V(6amKsSi,SGupmegye,pPaMs.eMacnoanget,aN.iYnosmaonfapiesf,sSroMtiioyt am.aTysossndrmN.and 5%55 pens i uCp romos3GhHOBeSr10.2. (1 GV.Olan, LY. Huang,KJ.HelouK,.. Harn,1. Buienboffa1n1d 23258. SVaensdeDl,riaorcahleSophaumanobflpoec,rrvopwncmHnellloPaeerpeecsf1t3s0s0o0%c,a5m39nv.3,d45 333152 sT[o8ot,s,eP1ngToieon,,KrnKdapinonlsarsnh.seKeofoamvoadrsbl,eiSMenMhd.eDCetonrsontcheGe.ainrF,iBicflloianona,i5Sm.ntrTToaskaaceh,alslthisa0entd. M 336190 ) LrWe.nYoeun.g MX.So,G, Jang, Tanya,N.Yamshite M.S,.Wo, 33F76 rDDue1o.rycGbieon,sKionbuarsgevmoidPmX.lLasm,oPmeCmhiee,sEsmtraesToaocldato,nd8t2106), 2 [R1A0L] HoGrWo.,O2M lD.Ce.Mai in,TR.Chuh rcbh,tMLE,Ba JlAltioion,Wi X1..BRuenegl,. lTaMo.dLBote, 5453 ZAoembaetlc,saDnecRliendeCinrpeebrufiloeudoornsoo0a0nc0d.3ot0t0hae6r,npEotveyrfshounourSoloalkfTyelcohcnhenetm,isc4a2tls(2ei0n06), 220009 Papo 210152 ET TR Sl es : 2 , LL ER 2 [11] JL.Butenhoff,D.W.Gaylor, J.A. Moore,G.W. Olsen,J. Rodricks, J.H. Mandel Odopeo.oo 4 perfluReogulrToo xico olPc hart maca ol,n39o (20a 04)t ,36e 3-3, 80. :i L(S E1) to 11.ti abla 2 epnem e tent e t 9 [13] C.Lau, JR.Thibodeaux,R.G.Hanson, M.G.Narotsky,JM.Rogers,AB. $B SinTen ie ne ry eto nn 11 inthemouse, ToxicolSci,90(2006), 510-518. i2 if U8M , SSvi,Aae cans2tbioetS nEVliTemnktD.H inotre, 16 andfemaleoffspring,ToxicolSci,96 (2007), 133-144. 3E ziE3xR B2i3I3I:E$28p"URW0lR, lEUre m A UB ge E oC0m,omtmMES I nI 0rh0mnnalbE te iAn rhcKeto,eeemrr aB E a Cini di rs,niCr TmR nnr enbosKKfT ErrT n e r m ena ontrepAr3ae,dmt tCce 0e e hft. eot ilncnte BemeeCtppodernes im1arts5ots 23 [16] C.J. Wolf,SE.Fenton,J.E.Schmid,AM.Calafat,Z.Kukleoyik,X.A. BryantJ,. sn ron A NS A is |||; 0h) CCmrht tain Temes ort eli h :} oE y D21m evetm , i 1e Cr gn ec Te 5 (22) PM.HindeslitrE,.Mylchreest,S.A. GaJn L.Bn uteno boffn and, G.L..Kennedy, 5y ltl m E a e moi n1 : E n 8iC S0 e e AL i %B 31 1S ,mo20maom mepse r sm ope cts 223xEBm Sim m) n me m ott etom i -- 3D2EL I ---- fIy S co emtm mt e rr ce TR 53A 3:3 mI 0 cmreiamaEtRe3re ce h tt 34iB1ot1glr15m2r 00iw7),me16o7e7-s1c 68mo 2. srmo ea n mDn manem rtnarc s r noe me -- ers p20 EEE EEE TT TERCS x | 2 [33] O.S. vonEhsenstein,Fenton, Suzanne E.,Kato, Kayoko, Kuklenyik,Zsuzsanna, 3 Calafat,AntoniaM.,Hines,ErinP. , PolyfluoroalkylChemicalsintheSerumandMilkof 45& BreaWos ment Repf rode Toxie col,d In Pi ressn (20g 09). (3) EAEmmet, FS,Shot, .Zhang,D.Freeman,C.DisdLM,Sha, 1705 ant corresores eyEviron Me 43000, 755.70 Communityexposure(0perfluorooctanoate:relationshipsbetweenserumconcentrations [35] EP.Hes,Whi,Sal,Sako,Jon P,Gibbs Floumoy,EvgocA,Lo, 111123 CBaexrpvtoaospwoeS1rsr,eaFomecoosp,otScsoasnsdnoeelA.inPk(enFndRarO wDFcehmdaoleaMGy.FAoIllM,oiwciHenogLlDoeCwvDiloE scinaollse 1ii4 TnPress(2009). uw pr Page 2sctsz u 1 Figurelegends: 2 memeeso toeA taosnrescottog0t 1in,s Figur1e.Damtissueweightsandaverage pupweightsfollowing asinglegavagePFOA. 5 7 eecoemat--ys--s rrOTNm--n--t D--o --an rtt--m--rSirn20 (GD)I8 (notshown). (A)Damliverweight,(B)liver:body weightratio,and (C)pup I 5 moeCompton pei GONor i FEO eon t ron eet anrnm0o9,ootnete rieo dom5n I 13 indamserum (A; g/m),urine(B;ng/gcreatinine),and mammary tissue (C; ng/gtissue. 14 wre Sant n reeds weight) onpostataldays (PND)1,4, 8and 18. PFOAconceatrationsweremeasuredin 1716 ten oes tom sori bo i's A-Cand B-D cannotbedirectlycompared(duetodifferentunits), the U-shaped e o aoreoaannmeroHn asltdtnseftmtTeTooo nnct9stkspttte5yetr1tSeOygr Aoi 18 `mammarytissueandaspiratedmilk.Dataareshownas Mean + SEM. "Denotes asingle. se rm EE p31 FEEDER aE 1 declinedove time,presumablydeto ition ofdosebyincreasedgrowth relied blood 2 volume,Dataaeshown as Mean SEM. 3 Figures. WholepupPFOAconcentrations.PFOAconocommatonsweremeasuredia 8 4 representative wholepup(pupandblood;ng/g;leftpanels)fromeachlitter.Although 5 ther is aconsistentdownwardtrendinPFOAconcentrationove tie, the apy 6 increasing bloodvolume 0dbodyweightchangesmustbetakeninoconsideration when 7 interpreting hes dae.Bodyweightadjusidvahoes(ightpools (oggPFOA 8 measures bodyweight =bodyburden]demonstrate an accumulationofexposureui 9 latinthelacaonalperiod.Daaare shownas Mean +SEM. 10 n2 202009 Popol p32 EE RE EEEE Figuress1. 50 S5EHI2lH5 lii7 (A) DLam%Liver Weight [R 1A7A Tf7TyA A 11 [2a Comesl | 01 ' s PFOA Exposure (mglkg) . (B)DamLiver:BWRatio 2g, 5 E2R |7 55snA77 om 9os kii 141> AAtZM oAi7 or + PFOA Exposure (mg/kg) 9 |Z 1AL7Z s o (C) PupBodyWeight . E weerAol 7 mdIA 7 lAI 7 {7M -- ` s PFOA Exposure (mg/kg) Faso zrot32 EEE ETE e a ae Figure 2. -fmm = |] BBpis=eoo = 1 PFOA Exposure (mg/kg) J Figure3. (A)DamSerum PFOA f | n | | MN | m igil } srm---- . "BrounGanePrOA . mrm---- i po iEile |=i li " I{Mfe CLINE 88s 00s ] pmo il i877 ge -- :ETM lo. dl |.1. -. lead | REY Tn IN Ce me Figure4. (A)Damvs.PupSerumPFOA HEt 12000 - i| = PFOA Exposure (mg/kg) (B) Pup Serum PFOAOverTime i. 3 ho -|- E 7 w - i - - Te aw TTT ew TTT awe PostnDaayt(PaNDl) ronnor p36 Figures. a _ 2 oo 3 2 wo SL~i 1 1f7 I wd ) a- eC) 5 i. il - ilvy b0g |": fo. ms IR 1 swwff c . A Ll)e, LiZW | - 5." ailo: " 7 ITI y Ri 7 AL LHREVAe Gestation (6D) and Postnatal (PND) Doaf PFyOA Measurements Fastorsz | 2 8 ;. . ii 4P HHEille is fii & 3 i ih) tre il iI fi a ili i Ea i | Ei HBth, $s 1i bide :8 1 ik HEH] p38 CU em FEEERR RIT S--e -- rena J -------------- = Pvc Reproductive Toxicology Jarl aiepairi e taobe maie tme + Polyfluoroalkyl chemicals in the serum and milk of breastfeeding women + OnS.d vonEi hrenn steie n*, Suzanne E. Fenton, Kayoko Kato*, Zsuzsanna Kuklenyik, |1L R pet e s MS TSnegEi,rcmt AntoniaM. Calafat, ErinP. Hines w LR a E r --ee " am DD okom ue F3: sS r Exea Pa olyfuoroaf tchemicealts (PRCgS)eecromparise 2grloupoyafymBaeno-mmradeWorgo eaniceycOomopT osunds,eoomTemsorrefwtahiycehare lM ori (FS)e werefeud1 ayOaLR tsro acamps, POSanPFOAwereoonostee ER O TdePALStewtrtteeOetT kBsrdaootppaho e 0e0n0 e ee nse L Hl E or TmCem nntee so te. ptrnckisogaelnoepidpimremabtiyopnyHToojo neliJ ro Erte pg Sr ios 2= Tepe e ET R E plosa L k 0BL eBeS, m A aT mtp oeh t pSe d alTs r Ug tS lEY Bh eai npr ep a a im ov a aRaann, E nerTAmeamo TanSeSOSpahrT n boare nnecgyon 421 EnRo t eeee St S, nt RpBhaeocgAh apOemOodeS peocna efrrmsE SLen da bo 22 T R RS E R EE e T TCES e a Ia a rempm eoiism uEiR,rPrA oeneotno acth loym,ou.s x4 wR aL nisEse ony Ree eSe etn SRena ton we rhe 1EPOIEdfor markers af ea cin tehorpostrdeve : i mtmst R [Epi E eri : Ee ERR SR R ERERs i e SRE1Y Oa Teale p39 R .SER ERchSR rIisTE ----TE --rT------TR R R e aes oDauon hbanniikkPIIC cconnncnomronassuaor isOpireeThh:ee E3D p0 e n iistI ie t n mi i t E hi eewoimneSl saotiwteorscwnsoorocmhniremtmsmoeovAonee aRsr +A EA a Sr! Ee = SwB h: y ST e Imk(3s Tempo omevnt eas eahapnrastsmiscr eksl T me e ae opm e di 5 =8F3 E8 ]i Tae e moa nveenan5)Tmce eme5tA)AiwtlT syney nsr:y omed 74 fo te seis bt it ens v- arr - P Lho aa moeonsha te yAe ciS00e00 inen S So TENt T E LE E Se E sI aeToli)l SE Sn 2 2= . n---- I F R E FCE E l e t IRAaE =2= I D peep e T , ny - {rotLo nl34bv Eipug are omc IL ER SR IDS D m r rhahmh sam oo k a pmatee nm te m scosdui cCdwi e eagnwormaegdlrn oT n foHn ee FTEtYr),t E L22 I EE IE R A EEe Ia mEETs Reas 32 IHE E FRi mINIIe e LIILE I E E E e a acre ur tE E oSre neE: so : EE F re tICa D D 3-D D So m oEne mE nmi prtDmARE LIn eLesILeS,e S coSEr I nIEt aS ey Se m ee IenTinn s ne e rnn c 2) 50mm3um:ThermortypersiiKeystone 0ddetection andquanctica: : 12 7DERE ASS E eetTe e T ees I, . aste E 3 2= ID -- mTr-- a e eeE y m e h e Selyl S S EA ARE A E = el = i RE E et EE e er Ia RAIE JJ I E o i s e . s aa o= EE FEP T Ee EE e Ee Er =E oa a Se L Donn :== tae Ha bdo - EERE ENEIT esse The} Gs aetoner tAncei emR . 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