Fetal membrane morphology and circulation of the liquor amnii

Minh, Hoang-Ngoc; Douvin, D; Smadja, A; Orcel, L

doi:10.1016/0028-2243(80)90001-5

Cited by 11 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The chorion does not produce blood vessels and vascularization comes from the allantois or yolk sac. The chorion over a large area fuses with the allantois to form the chorioallantois [ 15 ].…”

Section: Human and Animal Perinatal Tissues—anatomical Histological And Cellular Characteristicsmentioning

confidence: 99%

Mesenchymal Stem/Stromal Cells Derived from Human and Animal Perinatal Tissues—Origins, Characteristics, Signaling Pathways, and Clinical Trials

Kulus

Sibiak

Stefańska

et al. 2021

Cells

View full text Add to dashboard Cite

Mesenchymal stem/stromal cells (MSCs) are currently one of the most extensively researched fields due to their promising opportunity for use in regenerative medicine. There are many sources of MSCs, of which cells of perinatal origin appear to be an invaluable pool. Compared to embryonic stem cells, they are devoid of ethical conflicts because they are derived from tissues surrounding the fetus and can be safely recovered from medical waste after delivery. Additionally, perinatal MSCs exhibit better self-renewal and differentiation properties than those derived from adult tissues. It is important to consider the anatomy of perinatal tissues and the general description of MSCs, including their isolation, differentiation, and characterization of different types of perinatal MSCs from both animals and humans (placenta, umbilical cord, amniotic fluid). Ultimately, signaling pathways are essential to consider regarding the clinical applications of MSCs. It is important to consider the origin of these cells, referring to the anatomical structure of the organs of origin, when describing the general and specific characteristics of the different types of MSCs as well as the pathways involved in differentiation.

show abstract

Section: Human and Animal Perinatal Tissues—anatomical Histological And Cellular Characteristicsmentioning

confidence: 99%

Mesenchymal Stem/Stromal Cells Derived from Human and Animal Perinatal Tissues—Origins, Characteristics, Signaling Pathways, and Clinical Trials

Kulus

Sibiak

Stefańska

et al. 2021

Cells

View full text Add to dashboard Cite

show abstract

“…The fetal membrane (FM) is a complex consisting of the amnion and the chorion, constituting the fetal components and the decidua, a maternal component. It surrounds the fetus and amniotic fluid throughout the gestational period and is critical in providing a protective screen for the fetus and in regulating the amniotic fluid volume (1,2). Throughout pregnancy, the increasing area of the FM, the development and maintenance of permeability and tension of the FM are required to fulfill the demands for increasing fetal weight, fetal size and amniotic fluid volume (1).…”

Section: Introductionmentioning

confidence: 99%

“…It surrounds the fetus and amniotic fluid throughout the gestational period and is critical in providing a protective screen for the fetus and in regulating the amniotic fluid volume (1,2). Throughout pregnancy, the increasing area of the FM, the development and maintenance of permeability and tension of the FM are required to fulfill the demands for increasing fetal weight, fetal size and amniotic fluid volume (1). Evidence from human studies demonstrated the presence of five aquaporins (AQPs; AQP1, 3, 4, 8 and 9) and water transport channels in epithelial cells of the human FM.…”

Section: Introductionmentioning

confidence: 99%

Number and distribution of myofibroblasts and α-smooth muscle actin expression levels in fetal membranes with and without gestational complications

Yang

et al. 2015

Molecular Medicine Reports

View full text Add to dashboard Cite

The permeability and tension of fetal membranes (FMs) is associated with extracellular matrix proteins produced largely by myofibroblasts (MFBBs). α-smooth muscle actin (α-SMA) is involved in the contraction of MFBBs and has been implicated as a special biomarker of MFBBs in non-vessel FM. The present study demonstrated, by using immunohistochemistry, reverse-transcription polymerase chain reaction and western blotting, that MFBBs were mainly distributed in chorioamniotic mesoderm at 16-21 weeks and in chorionic mesoderm at 22-40 weeks, respectively, while overlapping with each other at 16-40 weeks. In addition, a quantity of MFBBs were identified in chorionic epithelia at 16-40 weeks. The MFBBs were distributed parallel to the FMs. The quantities of MFBBs and the expression levels of α-SMA were negatively associated with increasing gestational progress and of amniotic fluid indexes in full-term females (those from oligohydramnios were higher than polyhydramnios); however, the thickness of the FM's mesoderm remained unchanged. Of note, the number of MFBBs in early-onset severe pre-eclampsia (EOSP) was significantly decreased in comparison with that in EOSP controls and late-onset severe pre-eclampsia (LOSP), while that in LOSP was higher than that in LOSP controls. The present data indicated that the changes in the quantity and distribution of MFBBs in the FM affects the permeability and tension of the FM. In addition, the findings suggested that the expression levels of α-SMA in the FM also contributed to the properties of the FM. Simultaneously, the number and distribution of MFBBs and the expression levels of α-SMA in the FM may be involved in the mechanisms of development, apoptosis and trophoblast-MFBB transformation of the FM.

show abstract

The bovine allantoic and amniotic epithelia

Tiedemann

1982

Anat Embryol

View full text Add to dashboard Cite

The ectodermal and endodermal coverings of the allanto-amniotic membrane in cattle fetuses of various gestational ages have been studied by scanning and transmission electron microscopy. We have observed that the allantoic and amniotic epithelia have rather similar cells which are rich in filaments but poor in organelles. Neither epithelium reflects its different origin nor the differences in the composition of the two fetal fluids. Maturation changes occur in the pattern of the various surface specializations until midterm. Coral-like luminal outgrowths, which also contain organelles, were observed in both epithelia, whereas microplicae had formed only on fully differentiated amniotic cells. Interspersed smooth-surface cells in the allantoic epithelium that differ also in nuclear shape, glycocalyx, and mitochondria are regarded as a second cell type. Besides fluid-filled blisters and cornified pustules, the most typical feature of the amniotic epithelium is a rather regular lateral cell interdigitation with tongue-like lamellae of even thickness. Micropinocytotic vesicles are more frequent than in the allantois. Both epithelia possess similar tight junctions; no morphological or histochemical indications of an active sodium transport were evidenced.

show abstract

Fetal membrane morphology and circulation of the liquor amnii

Cited by 11 publications

References 2 publications

Mesenchymal Stem/Stromal Cells Derived from Human and Animal Perinatal Tissues—Origins, Characteristics, Signaling Pathways, and Clinical Trials

Mesenchymal Stem/Stromal Cells Derived from Human and Animal Perinatal Tissues—Origins, Characteristics, Signaling Pathways, and Clinical Trials

Number and distribution of myofibroblasts and α-smooth muscle actin expression levels in fetal membranes with and without gestational complications

The bovine allantoic and amniotic epithelia

Contact Info

Product

Resources

About