We propose a simple and low-cost process for the preparation of porous Ti foams through a sponge replication method using single-step air sintering at various temperatures. In this study, the apatite-forming ability of air-sintered Ti samples after 21 days of immersion in simulated body fluid (SBF) was investigated. The microstructures of the prepared Ca-P deposits were examined by X-ray diffra...

We describe a consanguineous Iraqi family in which affected siblings had mild mental retardation and congenital ataxia characterized by quadrupedal gait. Genome-wide linkage analysis identified a 5.8 Mb interval on chromosome 8q with shared homozygosity among the affected persons. Sequencing of genes contained in the interval revealed a homozygous mutation, S100P, in carbonic anhydrase related ...

BACKGROUND Amelogenin is required for normal enamel formation and is the most abundant protein in developing enamel. METHODS Amelx+/+, Amelx+/- , and Amelx-/- molars and incisors from C57BL/6 mice were characterized using RT-PCR, Western blotting, dissecting and light microscopy, immunohistochemistry (IHC), transmission electron microscopy (TEM), scanning electron microscopy (SEM), backscatte...

Calcium phosphate is attracting attention as a bone repair material and controlled-release carrier of various drugs such disease therapeutic agents anticancer agents. Compared with some bioabsorbable polymers, calcium phosphates have the advantage preventing pH decrease in surrounding body fluid. However, there are few studies comparing effect supporting substances different physicochemical pro...

The present author and coworkers have engaged in the research developments of inorganic phosphate materials with high performance, utilizing characteristic properties phosphates forms crystals glasses. review described our previous regarding (i) preparation fibrous octacalcium (Ca8H2(PO4)6∙5H2O) hydroxyapatite (Ca10(PO4)6(OH)2; HAp) particles due to anisotropic crystal growth, (ii) superplastic...

This article presents the results of a study radiation-induced defects in various synthetic calcium phosphate (CP) powder materials (hydroxyapatite—HA and octacalcium phosphate—OCP) by electron paramagnetic resonance (EPR) spectroscopy at X, Q, W-bands (9, 34, 95 GHz for microwave frequencies, respectively). Currently, CP are widely used orthopedics dentistry owing to their high biocompatibilit...

The hydroxyapatite (HAP) with variable chemical substitutions has been considered as the major component in the mineralized part of bones. Various metastable crystalline phases have been suggested as transitory precursors of HAP in bone, but there are no consensuses as to the nature of these phases and their temporal evolution. In the present study, we cultured rat calvarial osteoblasts with as...

We provide evidence that citrate anions bridge between mineral platelets in bone and hypothesize that their presence acts to maintain separate platelets with disordered regions between them rather than gradual transformations into larger, more ordered blocks of mineral. To assess this hypothesis, we take as a model for a citrate bridging between layers of calcium phosphate mineral a double salt...