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Council for Tobacco Research

Pulmonary Histopathology of Hamsters Exposed to Smoke [St Exposing Hamsters to Cigarette Smoke Resulted in Effects on Pulmonary System]

Date: 28 May 1997 (est.)
Length: 1 page
CTRMN042555B-CTRMN052555
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Abstract

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Ctrmn00041967-2810
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Author
Bernfeld, P., Bioresearch Consultants
Russfield, A.B., Bioresearch Consultants
Depository Date
08 Sep 1997
Box
267
Type
ABSTRACT
UCSF Legacy ID
ont30a00

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/1 I / . _ _ ALfTRACfS: Tk'ELFTH At:\tJAL fIUTT::G _ .63 E l. Flr.oride lon Ecoer•an .I jrer Jaholorien e/Seceral fk.eraer6314 ,r D.•elrarirea. J. V. Dr t.t1>, V. 1.. CASr•ra. Ja., and E. S. H,wttt, l:orthrop Sonioa. Inc. and NASA. Afannol Spaz- caft Ceatc, Houston. Teass. l.tala satt were ecposed to atmospbetot of sarfous fluorinated e:hytene compounds or ltecadooropcopcrc in salalethal conecnttst ions. The irtcseasa in urinary Ouoride a ficr e.Woa+c to the.se Buorearbon atmospheres sunated that the;• wen depraded biolu0es0;• to tree Ouorida Ion. Inhabtioo of these f(uoroearb.~xontainin.- at.•nosphexs also produsd a tood- ente to marked diutsis, and an increased potassium and creatinine eacretion. The onirsk also e.shibital a serese j)ucosuria for'ri-T2 hr after e:powres to aunospheres oontaioin: brc•trluoropropere or tetrafluoroethykne. These studiz supprst that simpk Iluorituud alkcocs are biodesrodable and that this can be demonstrated by the increased urinan•es- eetion of Ossvride ion after eaposure. They also e.abibit a rsepbrotoaicity when given in satb quantias. Ri Pulmo..oy XirrovrAo/ofr o/Kevrurers Eryoscdro SmoEe. F. Ho%mtrtou, A. B. Rtss- irto, oad P. BZ.tu~snr, Bio-Researeh Cotssultants, lna. Cambridte, htassaehuxas. Ot:e hundred and tso inb" S>siao bamsrers of the 910 iy.:0 and D1O 13.16 strains..tx espo:ed tslor dat7y, 5 Ca>s a.eck, to E pu3s from Kentucly I RI cipreves of=-sec dur~ion takeo e.ery minute b> aWalton•\lorrissey re•ersr smoker. The e%posu:e to 19.3% seeo:e eoacentratlon lasted 15 see and .tzs foiJooed by 43 see of Lsboratory air. Suty ani•ruls of each serala cere te:d Sa ors witbout raat:)pulation and CO additional co:urel a:iuzls of each strain were esposed as the espcrinxntal animals e..xpt that noritarcue +•u insetted into the rtnc?siae. la L`e B:O $7.20 stralo anfziais werc killed at dS weeks, and those of the BIO 13.16 stmlo at 43 aLd 78 wakt Anima)s d>ins s;ootar.cotssiy were also studied hir toleYn i ly. ia lhar.uters exp^sed to s:r ol•e, nucrophape Gsnu lomas were seen in tt•s ;.ulmcou>• parr::ch>rv, es:e+riall•v fre: ucntly and eari;• in 87.20 hstraters. Rarc ma)i fna.i: tumors werc feumd ir: tce oascp:rl.nx ef smol:c<..posed 15.16 animals. Pnma!iptcr.t d>s;la:t. cL--;es w ere seen in the lar>ns after approaimately C0 wcet:s of s.no:e es;o;u:e. 1-t si.e neo7u:ic ehazjes e:rr four.d in the lu>na of smoke<.aposed anirnals of both strains. te^e'•nning a: aaout 60 Nec!:s of s-okir; T.:it eonflrms the observa:iom of Dor.t.mtsl: of lar.rfeal charpes an: Gemans:ra:ca the use!u.tneu cf the hamster inhal_tion modcl far studies en .^..rtinotcnet:s of M.~•.1... : 3Re. 61. Rr:~ove o,r R::r so Pw,af,~sis Pra[rrr:r of Fluori,,errd Pol,-.ers. E. S. H.aaz- H. P. N•:a".•e'ro.. 1. W. Dsunr ar.d J. V. Dr_Ln', NASA. Va-_ ed S,^_:ecraft Cc.r:. Housron, Texs. A prc•.io_s rr.o:: !raes this !abcra:on presented the LD!0 ar.d niersropic ratEa'o;> rssalti ; fror t:.e e~;osur: of rac; to tha r~rol.sis pr:duns of eo,cl>rnen o'.ln,L•dcne ffca^Ce aed ~.ac'vr.r ; ex (1) and (1) plus .dd:ti.es Ptodu xd t,> t+'= nanufaeturcrs. Tnis repuR cst-.rds :cat .,rr: to eaanirction of ph; sioLopnl re:pcr.sas at suNe:t;al le,elt. T`.e p~zojzis prc,!_::s of all th1ee macen9s p:edusJ marked diare.is and ircreasrd %sarc: roasLr..s:ene.;.osure. Corcot-r..i::ant s.ith the diu:esis was an ir.r.;ate~ estt`ut ef f._r.e rar., G:.ec=.•ia and iraaW- uri~ary paatsicr.:. ~1a~eTC:rie a.us• c! k.x. s.:c: a's G:`>~ sS,ws an a;,arent _'r.iLitior. t•rcGuc:d t•y all thrce ma:rrias. T1is .~ascct!oucdwtau.a=a!;:c:ro;hotorn.:nar•.etho2.GrusiobunationcittetrJc:~ s~o+s All ;:oeticm:e:l p:rT_aes retcracd to r.e:s) withi:+ 14 da>s Tn: osrr_i!p:ct roiaG~t:;(eaima)tuFu!cda^-3:fe))oain~sutlahate.,osuru:otle;~rc';:i, prcCccs ef :ii t::rce n-.a:erials. ft it r.o: ) e::eruin that t1i: damapr is enriret;dce to irhatsat,% of h> L-el;zbte t1u:rl,,c Gur'v+g the c.aposcrt p:riod. &:. Rrr; i c:rrr Grrrnr:rrr o_/.acrrone anJ .lrrro+aie !e tl:e Def. Jor. L EGLt. Jr.., \le.f,:4l Col7r;c of Vtr.-inia. Virginia Ccnur.oi+caltl L'nkersi:c. Ri:hr..ond, Virpnia () F. 8orr:r:.r_) a,`e:cr.c aaJ annrsr.ia a^e amorS the r•r.>• eo.nfoa..fs nf roai:rlcSiet in:crest fou:.f ir ttu a;vr phsse of c.~r-:es:e smo:e. This s:udy deals with the handl~S j of these onr..pounG, tn r~\ CTR CCNTRACTS 00570~ 11225444 ' CT R. M N 04 2- FE 5" S A t-E-5

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