52 β- thalassemia major patients were studied. their ages ranged from two to 20 years. the group consisted of 22 girls and 30 boys. candida intracellular killing and nbt (nitroblue tetrazolium) tests were performed on the peripheral blood neutrophils of these patients. average results of the intracellular killing test was within normal range for the patients, but showed an appreciable decrease ...

The role of various cell wall components of nonencapsulated Staphylococcus aureus in phagocytosis and killing was studied. Adsorption of human serum with S. aureus cell walls, or trypsin-digested cell walls, reduced the rate of phagocytosis and killing of S. aureus by human-blood leukocytes when compared to unadsorbed serum. When the various components of the cell walls were used for adsorption...

The key problem of cryoablation is that only freezing is often unable to kill the capillaries at tumor edges, leading to a high rate of recurrence. Here, we found that Fe3O4 nanoparticles were highly useful to improve the freezing capability of cryosurgery due to their ability to alter intracellular ice formation (IIF) and growth in tumor cells. The killing efficiency of cryoablation for MCF-7 ...