Words similar to ectodermal
Example sentences for: ectodermal
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In contrast, a neuroblast divides along the apical-basal axis, so that the axes of its mitotic spindles are perpendicular to the plane of the ectodermal layer.
The mouse gene encoding the 67 kDa isoform of glutamate decarboxylase ( Gad1 ) is expressed in the tail bud mesenchyme, vibrissal placodes, pharyngeal arches and pouches and the apical ectodermal ridge (AER), mesenchyme and ectoderm of the limb buds in mouse embryos from E9.
Both are ectodermal structures known to be sources of developmental signals required for morphogenesis and patterning [ 24, 25, 26, 40].
On one hand, there is increasing and rather convincing observational and experimental data underscoring the beneficial effects of marine fish consumption on fetal growth and gestation [ 1 2 3 ] . On the other hand, consumption of environmentally contaminated fish has been associated with decrements in gestation and birth weight in some studies [ 4 5 6 ] . Animal evidence suggests that Rhesus monkeys, rats and mice exposed to polychlorinated biphenyls (PCBs) in utero have reductions in length of gestation and growth [ 7 8 9 ] . The results from accidental environmental exposures also report adverse effects on birth size and ectodermal manifestations among fetuses to various polyhalogenated hydrocarbons [ 10 11 ] . One occupational study has reported a negative relation between PCB exposure and infant birth weight, which no longer remained significant after adjusting for gestation and other variables related to birth weight [ 12 ] . Results from a birth cohort study in the Faroe Islands, a community with a high intake of marine fish, whale meat and blubber, supported a relation between marine fatty acids and diminished birth weight for gestation, but the effects were not attributed to the mercury or PCB exposure [ 13 ] .
Thus, the mitotic spindle of the neuroblast has to reorientate by 90 degrees from the plane of the ectodermal layer [ 50 ] .The orientation of the mitotic spindle correlates with the asymmetric distribution of Numb [ 29 ] .
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