DNA-based coatings possess beneficial properties useful for medical and dental implants. The present study evaluated the potential in vivo bioactivity of DNA-based coatings, either or not pretreated in simulated body fluid (SBF). DNA-based coatings were generated on titanium cylinders using layer-by-layer deposition, with bis-ureido-surfactant as the cationic component and DNA as the anionic co...

The preferential proliferation of cancer cells in the bone microenvironment is poorly characterized. Expression pattern of bone marrow and other organs microenvironment in contact with osteolytic (Walker W256) and osteoblastic (MatLyLu MLL) metastases were investigated. Fisher and Copenhagen rats received respectively W256 and MLL cells injection. Bone and soft tissues were analyzed by immunoch...

introduction: discharge of textile wastewater causes the reduction of sunlight penetration, interferes with the receiving waters ecology and damage the environment. the aim of this study was to determine the removal efficiency of reactive blue 19 dye from aqueous solutions by cuttlefish bone powder. materials & methods: this study was performed experimentally and in laboratory scale. in this re...

Alendronate and omeprazole have been found to influence bone healing by interfering with osteoclastic activity, resulting in increased bone formation. The biological effect of these conventional drugs, incorporated into bioactive bone cement (G2B1), was investigated in a rabbit model. The 2 materials and a control were inserted in defects created in the femoral condyle of rabbits. Implantation ...

Five titanium plasma-sprayed implants were biopsied from a human volunteer 6 months after placement. Four test implants had been placed in immediate extraction sockets, while one implant was placed in a mature site and served as a control. The histologic analysis demonstrated that all five implants achieved osseointegration as demonstrated by light microscopy, whereas a varying degree of bone-i...

accurate measurements of physical characteristics of bone are essential for diagnosis, assessment of change following treatment, and therefore, indirectly, for evaluation of new forms of therapy. this is particularly true of osteoporosis and aging skeleton, in which fractures occur easily. methods: in this study an ultrasonic system was set-up and calibrated on plexiglas tubes of variable thick...