Is nodal signaling required for closure of the anterior neural tube in zebrafish?
This work helps establish a role for Nodal signals in neurulation, and suggests that defects in Nodal signaling could underlie human neural tube defects such as exencephaly, a fatal condition characterized by an open neural tube in the anterior brain.
Ongoing treatment with NSAIDs and in particular the cyclooxygenase-2-selective inhibitors rofecoxib, celecoxib, and diclofenac is associated with worsened prognosis in patients admitted with first-time MI.