Are pericentral activity of alpha-fetoprotein enhancer 3 and glutamine synthetase upstream enhancer in the adult liver regulated by β-catenin in mice?
These data identify the first distinct zonally active regulatory regions required for β-catenin responsiveness in the adult liver, and suggest that postnatal AFP repression and the establishment of zonal regulation are controlled, at least in part, by the same factors.
Human sperm motility arrest induced by external calcium removal is mediated principally by sodium loading, which would stimulate the Na(+)/K(+)-ATPase and in turn deplete the ATP content.