Background A 79-year-old woman was referred for evaluation of her painful and swollen joints. She had a medical history of congestive heart failure, renal insufficiency and peptic ulcer disease. For ...

A 16-year-old Diana monkey (Cercopithecus diana diana) with chronic renal insufficiency was evaluated for progressive weight loss. The examination revealed a subcutaneous mass on the left carpus.

Apatite crystal under a microscope at Paul Fitzgerald’s laboratory at Syracuse University. It was extracted from a granitic rock at the Cauca River Canyon in Colombia. The linear features observed are ...

With an eye toward new bone-repair treatments, researchers have designed molecules that assemble into tiny fibers that serve as templates for growing hydroxyapatite, the mineral in bone. What’s more, ...

If these phages are exposed to the target surface--hydroxyapatite crystal in this case--and then washed off, those left behind are the ones that tend to stick. Cloning the survivors and repeating in ...

This is a false color electron-microscope image of a resorbed apatite crystal (green) in pitchstone glass (blue). The composition of the pitchstone glass and the characteristic mineral textures are ...

Calcium is found inside the joints in the synovial fluid, which is a viscous fluid with an egg-white consistency, vital for reducing friction between the articular cartilage of synovial joints when ...

Commercially available hydroxyapatite powders exhibit a high degree of chemical variability. The crystal lattice quite readily undergoes substitutions, with ions such as CO 3 2-, HPO 4 2-and F-often ...