We describe a severe systemic reaction that occurred following injection augmentation with calcium hydroxylapatite vocal fold filler. The reaction occurred within 30 minutes of the procedure and consisted of diffuse itching, hives, edematous face and eyelids, and voice changes indicating glottic edema. It is classified as a grade 3 systemic reaction. Consideration is given to possible etiologie...

[methyl-3H]thymidine-labeled DNA from natural populations of aquatic bacteria was completely separated from RNA and protein by hydroxylapatite chromatography. The procedure was validated by monitoring increases in Escherichia coli cell count, A550, DNA concentration, and thymidine incorporation into DNA isolated by the proposed technique. The procedure can be used in the field and does not rely...

objective(s):   the production of nano-hydroxyapatite by two encapsulated bacterial strains was the goal of current research.  materials and methods:   serratia marcscens atcc 14756 and pseudomonas aeruginosa ptcc 1570 were used by two methods including encapsulated form in 2% (w/v) alginate sodium powder and inoculated form (10%) in nutrient broth medium containing alginate sodium blank beads....