Iain Martyn

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Fate allocation in the gastrulating embryo is spatially organized as cells differentiate into specialized cell types depending on their positions with respect to the body axes. There is a need for in vitro protocols that allow the study of spatial organization associated with this developmental transition. Although embryoid bodies and organoids can exhibit(More)
The cell cycle has gained attention as a key determinant for cell fate decisions, but the contribution of DNA replication and mitosis in stem cell differentiation has not been extensively studied. To understand if these processes act as "windows of opportunity" for changes in cell identity, we established synchronized cultures of mouse embryonic stem cells(More)
The calcium channel subtypes mediating nicotine-evoked [3H]dopamine release from rat striatal synaptosomes were probed with L-, N-, and P-type calcium channel ligands. Responses to nicotine were blocked by the peptides omega-conotoxin GVIA and omega-agatoxin IVA. The affinity constants for these compounds were consistent with their actions at N- and P-type(More)
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