mortality/aging
nervous system
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• neural crest cells in the supraorbital arch have a laterally shifted pattern of osteoblast and chondrocyte differentiation
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craniofacial
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• abnormally shaped at birth
• significant reduction in chondrocyte hypertrophic differentiation and bone deposition in the anterior growth zone
• alterations in the ossification zone are not as severe as in the presphenoid bone
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• absence of presphenoid bone deposition at birth
• decrease in the length of the chondrocyte hypertrophic zones with a decrease in the amount of hypertrophic differentiation
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• absence of hyoid bone ossification
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• condylar process is particularly underdeveloped with a lack of condylar cartilage
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• at E13.5 lack vertical outgrowth and extension of the distal tip of the anterior palatal shelf
• at E13.5 palatal shelves are deficient in OSX+ osteoblast differentiation
• at E14.25 enrichment of extracellular membrane components is missing and the distal extension is abnormally shaped
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• severe facial hypoplasia with shortened frontonasal structures
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• at E13.5 the tongue is located more posterior relative to the anterior palatal domain
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embryo
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• neural crest cells in the supraorbital arch have a laterally shifted pattern of osteoblast and chondrocyte differentiation
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skeleton
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• abnormally shaped at birth
• significant reduction in chondrocyte hypertrophic differentiation and bone deposition in the anterior growth zone
• alterations in the ossification zone are not as severe as in the presphenoid bone
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• absence of presphenoid bone deposition at birth
• decrease in the length of the chondrocyte hypertrophic zones with a decrease in the amount of hypertrophic differentiation
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• absence of hyoid bone ossification
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• condylar process is particularly underdeveloped with a lack of condylar cartilage
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• at E13.5 in the supraorbital frontal primordia the osteoblast and pre-osteoblast domains are positioned more laterally compared to controls
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• at E13.5 in the supraorbital frontal primordia the medial chondrocyte domain extends laterally
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• absence of neural crest cell based endochondral ossification in the hyoid bone
• absence of presphenoid bone ossification at birth
• impaired ossification in the cranial base
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growth/size/body
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• at E13.5 lack vertical outgrowth and extension of the distal tip of the anterior palatal shelf
• at E13.5 palatal shelves are deficient in OSX+ osteoblast differentiation
• at E14.25 enrichment of extracellular membrane components is missing and the distal extension is abnormally shaped
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• severe facial hypoplasia with shortened frontonasal structures
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• at E13.5 the tongue is located more posterior relative to the anterior palatal domain
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digestive/alimentary system
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• at E13.5 lack vertical outgrowth and extension of the distal tip of the anterior palatal shelf
• at E13.5 palatal shelves are deficient in OSX+ osteoblast differentiation
• at E14.25 enrichment of extracellular membrane components is missing and the distal extension is abnormally shaped
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• at E13.5 the tongue is located more posterior relative to the anterior palatal domain
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respiratory system