G
Gregor Weiss
Researcher at Medical University of Graz
Publications - 21
Citations - 573
Gregor Weiss is an academic researcher from Medical University of Graz. The author has contributed to research in topics: Trophoblast & Placenta. The author has an hindex of 9, co-authored 17 publications receiving 438 citations. Previous affiliations of Gregor Weiss include University of Graz.
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Trophoblast invasion and oxygenation of the placenta: measurements versus presumptions
TL;DR: All measurements available today point to increased oxygen levels within the placenta in patients with a failure of spiral artery transformation, which should lead to a rethink regarding pathological conditions such as intrauterine growth restriction and preeclampsia.
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Extravillous trophoblasts invade more than uterine arteries: evidence for the invasion of uterine veins
Gerit Moser,Gregor Weiss,Monika Sundl,Martin Gauster,Monika Siwetz,Ingrid Lang-Olip,Berthold Huppertz +6 more
TL;DR: It is suggested that invasion of EVTs into uterine veins is responsible the draining of waste and blood plasma from the intervillous space during the first trimester of pregnancy.
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The trophoblast plug during early pregnancy: a deeper insight
TL;DR: This study demonstrates for the first time serial cross sections through a trophoblast plug in a first trimester placental bed specimen and gives evidence of the presence of MMP-1 in plugs of invaded spiral arteries.
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Evidence from the very beginning: endoglandular trophoblasts penetrate and replace uterine glands in situ and in vitro
TL;DR: This study further strengthens the hypothesis of histiotrophic nutrition of the embryo prior to the establishment of the maternal blood flow toward the placenta by using a previously established three-dimensional co-culture in vitro model system of first trimester villous explants with non-invaded decidua parietalis.
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Amnion-Derived Mesenchymal Stromal Cells Show Angiogenic Properties but Resist Differentiation into Mature Endothelial Cells
Julia König,Berthold Huppertz,Gernot Desoye,Ornella Parolini,Julia D. Fröhlich,Gregor Weiss,Gottfried Dohr,Peter Sedlmayr,Ingrid Lang +8 more
TL;DR: Investigation of endothelial induced hAMSC found that it acquired some angiogenic properties but resisted undergoing a complete differentiation into mature endothelial cells by upregulation of anti-angiogenic factors, which might be useful in a variety of cell therapy or tissue-engineering approaches.