Ana Carolina Barbosa

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Histone deacetylases (HDACs) modulate cell growth and differentiation by governing chromatin structure and repressing the activity of specific transcription factors. We showed previously that HDAC9 acts as a negative regulator of cardiomyocyte hypertrophy and skeletal muscle differentiation. Here we report that HDAC4, which is expressed in prehypertrophic(More)
Learning and memory depend on the activity-dependent structural plasticity of synapses and changes in neuronal gene expression. We show that deletion of the MEF2C transcription factor in the CNS of mice impairs hippocampal-dependent learning and memory. Unexpectedly, these behavioral changes were accompanied by a marked increase in the number of excitatory(More)
The molecular mechanism by which neural progenitor cells commit to a specified lineage of the central nervous system remains unknown. We show that HDAC1 and HDAC2 redundantly control neuronal development and are required for neuronal specification. Mice lacking HDAC1 or HDAC2 in neuronal precursors show no overt histoarchitectural phenotypes, whereas(More)
Web and Grid Services are quickly maturing as a technology that allows for the integration of applications belonging to different administrative domains, enabling much faster and efficient business-to-business arrangements. For such an integration to be effective, the Provider and the consumer of a service must negotiate a Service Level Agreement (SLA),(More)
Hand proteins are evolutionally conserved basic helix-loop-helix (bHLH) transcription factors implicated in development of neural crest-derived tissues, heart and limb. Hand1 is expressed in the distal (ventral) zone of the branchial arches, whereas the Hand2 expression domain extends ventrolaterally to occupy two-thirds of the mandibular arch. To(More)
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