Percorrer por autor "Peres dos Santos, R."
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- Developmental effects of warfin in the skeletogenesis of zebrafish (Danio rerio) larvaePublication . Peres dos Santos, R.; Brito, A. B.; Cancela, Leonor; Gavaia, Paulo J.The vitamin K-dependent gamma carboxylase (VKGC) is responsible for the post-translational modification of glutamate residues to y-carboxy glumatic acid (Gla), in the presence of the co-factor, vitamin K. This modification has important implications, such as physiological homeostasis, signal transduction and bone calcification. This mechanism ensures complete carboxylation of coagulation factors, and matrix proteins like bone Gla protein (bgp) and matrix Gla protein (mgp), being essential for their biological activity.
- Warfarin effects in the skeletal development of zebrafish (Danio rerio)Publication . Peres dos Santos, R.; Bensimon-Brito, A.; Gavaia, Paulo J.; Cancela, LeonorVitamin K-dependent gamma carboxylation (VKGC) is crucial for posttranslational modification of glutamate residues to form α-carboxy glutamic acid (Gla) in the presence of reduced vitamin K, molecular oxygen, and carbon dioxide (1). This modification has important implications, mainly physiological, like homeostasis, signal transduction and bone calcification. This mechanism ensures complete carboxylation of coagulation factors, and proteins like bone Gla protein (BGP) and matrix Gla protein (MGP), being essential for their biological activity. Warfarin is a known anticoagulant that inhibits the action of VKGC (2), inhibiting consequently the activity of the referred proteins.