How SCF+G-CSF enhances the clearance function of bone marrrow-derived microglia to remove β-amyloid, however, remains to be determined in future studies.
From a pharmacokinetic standpoint, 99mTc-bisphosphonates must be imaged several hours after administration to accommodate soft-tissue, serum and renal clearance of non-bone bound agent.
No further increase in bone uptake and a slow clearance of Zr from bone were observed over the next 18 days (denoted as stage 2, Figure 5 d, Figure 6 a, and Table S6), suggesting a strong binding of the remaining Zr on the surface of dSiO2.
To eliminate the effects of reductions in body clearance of vincristine on bone marrow toxicity, we have used a bone marrow transplantation model yielding chimeras that were of identical wild-type genotype, except for their bone marrow progenitor cells.
However, the use of the term "half-life" to describe the biological clearance of Pb from bone implicitly makes assumptions about the kinetics of the process by which Pb is released.
The pathological findings in adult mice treated with tagged enzyme showed substantial clearance of the storage materials in bone, bone marrow, and heart valves, especially after 24 weekly infusions.
A full kinetic analysis of the dynamic PET and blood data would also be of interest, but this approach, whilst potentially more sensitive to small changes in bone clearance of tracer, is also limited in practicality.
This study and the report of the European Bone Marrow Transplantation Study Group (Ladenstein et al, 1993) suggested that clearance of skeletal uptake on bone scan after induction therapy defines a better prognosis subgroup that contains 40% of the population and have a 40% PFS at 5 years (versus 10%).
By submersing the coated sample blocks in a larger fluid volume, thereby allowing gentamicin to diffuse from the gap into this larger volume, we simulate the clearance of gentamicin from the gap between bone and bone cement toward the serum, as occurring in a clinical situation [ 9].
