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Trophoblast Deportation to the Lungs of Cotton Rats (Sigmodon hispidus)

机译:滋养层驱逐到棉鼠的肺(Sigmodon hispidus)

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Cottonrats(Sigmodonhispidus)havebeenusedtostudyavarietyofinfectiousagents,particularlyhumanrespiratoryviralpathogens.Duringthecourseofcomprehensivepathologicevaluationsofagingbreedersfromourbreedingcolony,6of22(27%)femalecottonratshadhistologicevidence,limitedtothelungs,ofembolizedcellsthatwereconfirmedtobetrophoblasticinoriginbyHSD3B1immunoreactivity.Whenpulmonarytrophoblastemboliwerenumerous,theyusuallywereassociatedwithadditionalhistologicfindingsinthelungs,includingpulmonaryedemaandhemorrhage,endothelialhypertrophy,fibrinoidvascularnecrosis,andabundantalveolarmacrophagescontainingfreshfibrinandhemolyzingerythrocytes.Ofthe6cottonratswithpulmonarytrophoblastemboli,5(83%)wereat8to18dofthe27-dgestationperiod,withthegreatestnumberofemboliperlungpresentbetweendays10through14.Theremainingcottonrathadafocalpulmonarytrophoblastembolusandwasnotpregnantbuthaddeliveredalitter3mopreviously.Threeothercottonratsineithertheearlyorlatestagesofgestationshowednohistologicevidenceofpulmonarytrophoblastdeportation.Thisreportisthefirsttodocumentpulmonarytrophoblastemboliincottonrats.Thisfindingsuggeststhatcottonratsmaybeanalternativeanimalmodelforthestudyofnormalandaberranttrophoblastdeportationinroutinepregnanciesandgestationalpathologicconditionsinwomen.
机译:Cottonrats(Sigmodonhispidus)havebeenusedtostudyavarietyofinfectiousagents,particularlyhumanrespiratoryviralpathogens.Duringthecourseofcomprehensivepathologicevaluationsofagingbreedersfromourbreedingcolony,6of22(27%)femalecottonratshadhistologicevidence,limitedtothelungs,ofembolizedcellsthatwereconfirmedtobetrophoblasticinoriginbyHSD3B1immunoreactivity.Whenpulmonarytrophoblastemboliwerenumerous,theyusuallywereassociatedwithadditionalhistologicfindingsinthelungs,includingpulmonaryedemaandhemorrhage,endothelialhypertrophy,fibrinoidvascularnecrosis,andabundantalveolarmacrophagescontainingfreshfibrinandhemolyzingerythrocytes.Ofthe6cottonratswithpulmonarytrophoblastemboli,5(83%)wereat8to18dofthe27-dgestationperiod,withthegreatestnumberofemboliperlungpresentbetweendays10through14.Theremainingcottonrathadafocalpulmonarytrophoblastembolusandwasnotpregnantbuthaddeliveredalitter3mopreviously.Threeothercottonratsineithertheearlyorlatestagesofgestationshowednohistologicevidenceofpulmonarytrophoblas该报告是首次记录到肺滋养层栓塞棉鼠的研究。这表明,棉鼠可能是常规胎生滋养层母体正常行进妊娠和妊娠病理病理状况的替代动物模型。

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