Disruption of the Hoxa3 homeobox gene results in anomalies of the carotid artery system and the arterial baroreceptors.

Abstract excerpt

Homeobox gene Hoxa3 is expressed in the third pharyngeal arch and pouch and is required for development of the third arch artery in addition to the thymus, parathyroid gland and carotid body. We therefore statistically analyzed malformations of the carotid artery system in Hoxa3 homozygous mutant mice, in comparison with wild-type and heterozygous littermates. To identify the carotid artery system, red carbon ink...

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