Results 91 to 100 of about 4,512 (194)

YAP/TAZ signaling in allantois-derived cells is required for placental vascularization

open access: yes
Normal placental development and angiogenesis are crucial for fetal growth and maternal health during pregnancy. However, molecular regulation of placental angiogenesis has been difficult to study due to a lack of specific genetic tools that isolate the ...
Hayes, K.   +16 more
core   +1 more source

Semithin micrographs showing the distribution of cells within the various layers of the developing CAM at E11 and E18.

open access: yes, 2016
a and b: Both the chorion (white arrows) and the allantois (black arrows) are relatively thin early during development and there are numerous cells concentrated in the subepithelial layer of the chorion (white arrowheads) and also in the subepthelial ...
Andrew Ndegwa Makanya (2591125)   +4 more
core   +1 more source

Characterization of an in vitro model of early placental development in the mouse [PDF]

open access: yes, 2008
The main function of the placenta is to facilitate the transport of oxygen and nutrients to the developing fetus. In mice this exchange occurs at the labyrinth, which separates the maternal and fetal circulations via two layers of syncytiotrophoblast ...
Proctor, Leslie
core   +1 more source

TEM micrographs showing the changing ultrastructure of the allantoic layer between E8 and E20.

open access: yes, 2016
Note that in all cases the microvilli project into the allantoic lumen (asterisks) and this is important in identifying the mesenchyme (Me) in cases where mesenchymal cells are not evident.
Andrew Ndegwa Makanya (2591125)   +4 more
core   +1 more source

Nuclear localization of active β-catenin is detected in trophoblasts specifically at the branching sites.

open access: yes, 2013
(A and B) Immunohistochemical localization of β-catenin and active β-catenin in E9.0 placentas. Note while active β-catenin was detected in the nuclei of trophoblast cells lining the branching folds (arrows) in the controls (+/−), it was absent in Fzd5 ...
Johan H. van Es (211784)   +17 more
core   +1 more source

Comparative study of carbon nanotubes and polymer composites with silver as sorbents of the influenza A and B viruses

open access: yesВопросы вирусологии, 2015
The comparative examination of the interaction of the influenza A and B viruses and fragments of DNA with the carbon nanotubes - composites of polyaniline (PANI) nanotubes and granules containing Ag and without Ag was performed.
V. T. Ivanova   +9 more
doaj  

Urachus Remnant: Importance of Early Diagnosis in Preventing Complications

open access: yesPrague Medical Report
The urachus remnant is a vestigial structure that results from incomplete involution of the cloaca and allantois, forming a duct between the bladder and the umbilical scar. Normally, it obliterates to form the middle umbilical ligament.
Bruna Suda Rodrigues   +3 more
doaj   +1 more source

Eimeria acervulina and E. mivati: oocysts, life-cycle and ability to develop in the chicken embryo

open access: yes, 1981
SUMMARYThree strains of Eimeria acervulina and 3 strains of E. mivati were compared. E. acervulina was characterized by the ovoidal shape of its oocysts and their rapid sporulation, small first-generation schizonts containing few merozoites, and its ...
C. C. Norton, L. P. Joyner
core   +1 more source

The effect of ascorbic acid on infection of chick-embryo ciliated tracheal organ cultures by coronavirus

open access: yes, 1978
Chick embryo tracheal organ cultures showed increased resistance to infection by a coronavirus after exposure to ascorbate, while chick respiratory epithelium and allantois-on-shell preparations showed no increase in resistance to infection by an ...
Fisher A., Kratzing C.C., Atherton J.G.
core   +1 more source

Abnormalities in sheep SCNT placentae.

open access: yes, 2017
(A-D) Haematoxylin and eosin staining of placentae collected from SCNT and (E-H) control (CTR) embryos at an early stage of development; (A) SCNT placentae at magnification x20 and (B) in enlarged black square from picture A. Chorion present cuboidal and/
Marta Czernik (289953)   +4 more
core   +1 more source

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