Does periodontopathogen and Epstein-Barr virus contamination affect transplanted bone volume in sinus augmentation?
This study confirms contamination of bone, harvested intraorally, with key periodontopathogens in individuals undergoing sinus augmentation. Specific microbial contamination can impair osteogenesis. Saliva may act as a vehicle to transport EBV and other pathogens into the sinus. Increased bone volume loss seems to be associated with the occurrence of specific periodontal anaerobic species, salivary EBV-1, or the combination of both.
Delayed G-CSF treatment at the subacute stage of severe contusive SCI promoted spinal cord preservation and improved functional outcomes. The mechanism of G-CSF's protection may be related in part to attenuating the infiltration of microglia and macrophages.