An unusual feature of yolk sac placentation in Necromys lasiurus (Rodentia, Cricetidae, Sigmodontinae)
Abstract We 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....
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| Veröffentlicht in: | Placenta (Eastbourne) 2012-07, Vol.33 (7), p.578-580 |
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| creator | Favaron, P.O Carter, A.M Mess, A.M de Oliveira, M.F Miglino, M.A |
| description | Abstract We 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. |
| doi_str_mv | 10.1016/j.placenta.2012.02.011 |
| format | Article |
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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. 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Psychology ; Histotroph ; Internal Medicine ; Microscopy, Electron, Transmission ; Obstetrics and Gynecology ; Placentation - physiology ; Pregnancy ; Sigmodontinae - anatomy & histology ; Sigmodontinae - physiology ; Uterus - ultrastructure ; Yolk Sac - blood supply ; Yolk Sac - physiology ; Yolk Sac - ultrastructure</subject><ispartof>Placenta (Eastbourne), 2012-07, Vol.33 (7), p.578-580</ispartof><rights>Elsevier Ltd</rights><rights>2012 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2012 Elsevier Ltd. 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Psychology</subject><subject>Histotroph</subject><subject>Internal Medicine</subject><subject>Microscopy, Electron, Transmission</subject><subject>Obstetrics and Gynecology</subject><subject>Placentation - physiology</subject><subject>Pregnancy</subject><subject>Sigmodontinae - anatomy & histology</subject><subject>Sigmodontinae - physiology</subject><subject>Uterus - ultrastructure</subject><subject>Yolk Sac - blood supply</subject><subject>Yolk Sac - physiology</subject><subject>Yolk Sac - ultrastructure</subject><issn>0143-4004</issn><issn>1532-3102</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkt9rFDEQx4Mo9lr9F0pehArdM5Ps7t2-iOWoP6Ao2D74FrKzs5LrbnImG-H-e7PenYIvwkAg85n5znwZxi5BLEFA_Wa73A0GyU1mKQXIpcgB8IQtoFKyUCDkU7YQUKqiFKI8Y-cxboUQTQnyOTuTsiqhFs2C9TeOJ5diMgPvyUwpEPc93_vhkUeD_KQyWe-4dfwzYfDjPvLBRJtCivzqq-8yYc013wSLNNnO0DW_t99H3_mccIZev2DPejNEenl8L9jD-9uHzcfi7suHT5ubuwIrAVPRIPSlRFXVSq1XiEiUJ-6NbMuGTKtaWCHNaLOqad1i2a-h7ahbi6rOf-qCXR3a7oL_kShOerQRaRiMI5-iztZVslypGjJaH9C8T4yBer0LdjRhn6GZq_VWn5bXs8Va5IC58PKokdqRuj9lJ08z8OoImIhm6INxaONfrmqkqpqZe3fgKBvy01LQES05pM4Gwkl33v5_lrf_tMDBOptVH2lPcetTcNluDTrmAn0_H8R8DyB_38I39QuGBLK4</recordid><startdate>20120701</startdate><enddate>20120701</enddate><creator>Favaron, P.O</creator><creator>Carter, A.M</creator><creator>Mess, A.M</creator><creator>de Oliveira, M.F</creator><creator>Miglino, M.A</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>6I.</scope><scope>AAFTH</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20120701</creationdate><title>An unusual feature of yolk sac placentation in Necromys lasiurus (Rodentia, Cricetidae, Sigmodontinae)</title><author>Favaron, P.O ; Carter, A.M ; Mess, A.M ; de Oliveira, M.F ; Miglino, M.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c501t-9c1f42c3563387cccee941fa2b49eab3b17cec501976e8bc4f81bded80561973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Choriovitelline placenta</topic><topic>Embryo Implantation - physiology</topic><topic>Embryology: invertebrates and vertebrates. Teratology</topic><topic>Evolution</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Histotroph</topic><topic>Internal Medicine</topic><topic>Microscopy, Electron, Transmission</topic><topic>Obstetrics and Gynecology</topic><topic>Placentation - physiology</topic><topic>Pregnancy</topic><topic>Sigmodontinae - anatomy & histology</topic><topic>Sigmodontinae - physiology</topic><topic>Uterus - ultrastructure</topic><topic>Yolk Sac - blood supply</topic><topic>Yolk Sac - physiology</topic><topic>Yolk Sac - ultrastructure</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Favaron, P.O</creatorcontrib><creatorcontrib>Carter, A.M</creatorcontrib><creatorcontrib>Mess, A.M</creatorcontrib><creatorcontrib>de Oliveira, M.F</creatorcontrib><creatorcontrib>Miglino, M.A</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Placenta (Eastbourne)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Favaron, P.O</au><au>Carter, A.M</au><au>Mess, A.M</au><au>de Oliveira, M.F</au><au>Miglino, M.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An unusual feature of yolk sac placentation in Necromys lasiurus (Rodentia, Cricetidae, Sigmodontinae)</atitle><jtitle>Placenta (Eastbourne)</jtitle><addtitle>Placenta</addtitle><date>2012-07-01</date><risdate>2012</risdate><volume>33</volume><issue>7</issue><spage>578</spage><epage>580</epage><pages>578-580</pages><issn>0143-4004</issn><eissn>1532-3102</eissn><coden>PLACDF</coden><abstract>Abstract We studied the development of the inverted yolk sac in a New World rodent, Necromys lasiurus during early placentation. 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| subjects | Animals Biological and medical sciences Choriovitelline placenta Embryo Implantation - physiology Embryology: invertebrates and vertebrates. Teratology Evolution Female Fundamental and applied biological sciences. Psychology Histotroph Internal Medicine Microscopy, Electron, Transmission Obstetrics and Gynecology Placentation - physiology Pregnancy Sigmodontinae - anatomy & histology Sigmodontinae - physiology Uterus - ultrastructure Yolk Sac - blood supply Yolk Sac - physiology Yolk Sac - ultrastructure |
| title | An unusual feature of yolk sac placentation in Necromys lasiurus (Rodentia, Cricetidae, Sigmodontinae) |
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