Two cases of meningioma and glioma established in biopsy material from one or more than one operation are reported. In these cases, an originally benign meningioma was followed by the development of anaplastic astrocytoma in close juxtaposition to the site of first operation. The close juxtaposition of two histologically different tumors suggested that one of them might lead to local proliferation and independent growth of the other.
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Cells Dev
January 2025
Department of Biomedical Engineering, University of Connecticut, Storrs, CT, United States of America; Department of Biomedical Engineering, University of Connecticut Health, Farmington, CT, United States of America; Jackson Laboratory, Farmington, CT, United States of America. Electronic address:
The maternal-fetal interface has long been considered as a frontier for an evolutionary arms race due to the close juxtaposition of genetically distinct tissues. In hemochorial species with deep placental invasion, including in humans, maternal stroma prepares its defenses against deep trophoblast invasion by decidualization, a differentiation process characterized by increased stromal cell matrix production, and contractile force generation. Decidualization has evolved from an ancestral wound healing response of fibroblast activation by the endometrial stroma.
View Article and Find Full Text PDFNat Cell Biol
November 2024
Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Invasive membrane protrusions play a central role in a variety of cellular processes. Unlike filopodia, invasive protrusions are mechanically stiff and propelled by branched actin polymerization. However, how branched actin filaments are organized to create finger-like invasive protrusions is unclear.
View Article and Find Full Text PDFNature
October 2024
Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA.
A central feature of meiosis is the pairing of homologous maternal and paternal chromosomes ('homologues') along their lengths. Recognition between homologues and their juxtaposition in space is mediated by axis-associated recombination complexes. Also, pairing must occur without entanglements among unrelated chromosomes.
View Article and Find Full Text PDFJ Hum Evol
September 2024
Turkana Basin Institute, Department of Anthropology, Stony Brook University, Stony Brook, NY 11794-4364, USA; Department of Paleontology, National Museums of Kenya, Museum Hill, Nairobi, Kenya.
A hominin mandible, KNM-ER 63000, and associated vertebrate remains were recovered in 2011 from Area 40 in East Turkana, Kenya. Tephrostratigraphic and magnetostratigraphic analyses indicate that these fossils date to ∼4.3 Ma.
View Article and Find Full Text PDFBehav Res Methods
October 2024
ICoN Cognitive Neuroscience Center, Institute for Advanced Studies, IUSS, Pavia, Italy.
The organization of abstract concepts reflects different dimensions, grounded in the brain regions coding for the corresponding experience. Normative measures of linguistic stimuli offer noteworthy insights into the organization of conceptual knowledge, but studies differ in the dimensions and classes of concepts considered. Additionally, most of the available information has been collected in English, without considering possible linguistic and cultural differences.
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