Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"pharyngeal arch"”.
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Transcriptional Regulation of Neural Crest-Derived Pharyngeal Arch Artery Development
… of particular neural crest-derived pharyngeal arch mesenchyme markers. Mice deficient for both Gaq and Ga 11 are phenotypically similar to EtA or Et-1-null mice. My analysis of expression patterns of Et-1 dependent and independent transcription factors in Gaq /G a11-deficient embryos …
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Transcriptional Regulation of Neural Crest-Derived Pharyngeal Arch Artery Development
… of particular neural crest-derived pharyngeal arch mesenchyme markers. Mice deficient for both Gaq and Ga 11 are phenotypically similar to EtA or Et-1-null mice. My analysis of expression patterns of Et-1 dependent and independent transcription factors in Gaq /G a11-deficient embryos …
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The evolution and function of pharyngeal arch signalling centres in jawed vertebrates
Pharyngeal arches are paired columns of tissue that form when pouches of foregut endoderm contact surface ectoderm on either side of the embryonic vertebrate head. In fishes, endodermal pouches fuse with surface ectoderm to form gill slits. Once delineated, pharyngeal arches undergo morphogenesis …
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The Role of MicroRNAs in Craniofacial Development
… fusion of the bilateral processes of the first pharyngeal arch and/or the frontonasal process. Craniofacial clefting can result from genetic and teratogenic disruptions affecting the growth and development of the first pharyngeal arch. Many of the molecular pathways regulating normal and …
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Axial patterning of the chondrichthyan pharyngeal endoskeleton and the origin of the jaw
… through modification of dorsal and ventral gill arch skeletal elements, respectively. These hypotheses were based largely on the skeletal anatomy of chondrichthyans (sharks, skates and holocephalans), but remain largely untested from a developmental perspective. Here, I test 1) whether jaws and …
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Transcriptional Regulation of Cardio-Pulmonary Development
… normal development of the right ventricle, the pharyngeal arches and limb buds. Loss of dHAND leads to apoptosis in the aforementioned tissues and to embryonic lethality at E10.0. A differential display analysis was performed to identify genes dysregulated in dHAND-/- hearts. Characterization of …
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Molecular Basis and Modification of a Neural Crest Deficit in a Down Syndrome Mouse Model
… crest cell (NCc) deficit in the developing first pharyngeal arch (PA1) at embryonic day 9.5 (E9.5). Furthermore, evidence suggested that both a proliferation deficit in the PA1 and a migration deficit in the NCC from the neural tube (NT) could be the mechanism behind this deficit. However, the …
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The development and evolution of vertebrate oxygen-sensing cells
… surrounding air/water. This stimulates the glossopharyngeal and/or vagal nerves, triggering increased ventilation via the respiratory reflex. In the adult, they are located in the carotid body (glomus cells) and lung epithelia (pulmonary neuroendocrine cells) of amniotes, and in the epithelia of …
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Chapter 1, a dichotomous key for the identification of nine salmonids of the Inland Northwest using six diagnostic skull bones; and associated equations to estimate total length and weight form bones ingested by piscivores or found in archeological sites; Chapter 2, Utilization of acoustic biotelemetry to define the movements of Lake Roosevelt Redband trout, oncorhynchus mykiss gairdneri
… or species. These unique qualities allow researchers to use bone to identify and quantify fish in piscivore and archeological investigations. Due to the high degree of similarity among skull bones of salmonids, adequate descriptions for keying out most salmoinds is limited in the available …