An unusual feature of yolk sac placentation in Necromys lasiurus (Rodentia, Cricetidae, Sigmodontinae)

dc.creatorFavaron, P. O.
dc.creatorCarter, A. M.
dc.creatorMess, A. M.
dc.creatorde Oliveira, M. F.
dc.creatorMiglino, M. A.
dc.date.accessioned2013-11-05T15:23:52Z
dc.date.accessioned2018-07-04T16:14:26Z
dc.date.available2013-11-05T15:23:52Z
dc.date.available2018-07-04T16:14:26Z
dc.date.created2013-11-05T15:23:52Z
dc.date.issued2012
dc.identifierPLACENTA, LONDON, v. 33, n. 7, supl. 4, Part 1, pp. 578-580, JUL, 2012
dc.identifier0143-4004
dc.identifierhttp://www.producao.usp.br/handle/BDPI/41655
dc.identifier10.1016/j.placenta.2012.02.011
dc.identifierhttp://dx.doi.org/10.1016/j.placenta.2012.02.011
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1633294
dc.description.abstractWe studied the development of the inverted yolk sac in a New World rodent, Necromys lasiurus during early placentation. Ten implantation sites were investigated by means of histology, immunohistochemistry and electron microscopy. The yolk sac was villous near its attachment to the placenta. Elsewhere it was non-villous and closely attached to the uterus. The uterine glands were shallow and wide mouthed. They were associated with vessels and filled with secretion, suggesting the release of histotroph. This feature was absent at later stages. The intimate association of the yolk sac with specialized glandular regions of the uterus may represent a derived character condition of Necromys and/or sigmodont rodents. (C) 2012 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherW B SAUNDERS CO LTD
dc.publisherLONDON
dc.relationPLACENTA
dc.rightsCopyright W B SAUNDERS CO LTD
dc.rightsclosedAccess
dc.subjectCHORIOVITELLINE PLACENTA
dc.subjectHISTOTROPH
dc.subjectEVOLUTION
dc.titleAn unusual feature of yolk sac placentation in Necromys lasiurus (Rodentia, Cricetidae, Sigmodontinae)
dc.typeArtículos de revistas


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