M M Mentink

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The epicardium and dorsal mesocardium are known to be the source of structures that form the wall of the coronary vessels. Because mouse knockout studies have shown that proper epicardial formation is also essential for myocardial development, we have studied in detail the migration and differentiation of epicardium-derived cells (EPDCs) within the(More)
Changes in the distribution of extracellular matrix components have been investigated immunohistochemically during neural crest development in the rat. Inside the ectodermal epithelium basal lamina components are formed resulting in a separation of neurectoderm and epidermal ectoderm. Within the presumptive neural crest area fibronectin, hyaluronan and(More)
Axial rotation is an important event during a certain period of development of Amniote embryos. In murine embryos a sharp lordosis changes into a kyphosis. The result is the typical fetal position. In this study a temporal and topological relation is found between an asymmetric mitotic activity in the neural tube and the rotation process. The mitotic(More)
Segmental organization of the vertebrate body is one of the major patterns arising during embryonic development. Somites that play an important role in this process show intrinsic patterns of gene expression and differentiation. The somites become polarized in all three dimensions, rostrocaudal, mediolateral and dorsoventral, the quadrants giving rise to(More)
The formation of mesectodermal cells by the neural crest in 5- to 41-somite stage embryos was investigated experimentally in rat embryos cultured in vitro, using lectin-coated colloidal gold as a probe. This method labelled all ectodermal cells, among them neural crest, surface ectodermal placodal and epiblastic (primitive streak) cells. The neural crest(More)
The morphogenesis of the ventricular surface of the diencephalon of the rat was studied using scanning electron microscopy, cryostat serial sections and direct observations under a dissection microscope. Based on these observations a description is given of the neuromeres present within the prosencephalon and of the termination of the sulcus limitans. Two(More)
The production of cells by the neural crest is studied light-microscopically in 10 microns and 1 micron serially sectioned mouse and rat embryos, ranging in age from presomite to 40-somite stages. In the head region, mesectoderm formation starts in a pre-neural plate stage. It continues to the 20-somite stage. This implies that the contribution of the(More)
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