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Biomedical subjects

M Chétail

Publications and source records attributed to M Chétail.

4 recordsLinked to original sources

[Fate of a fragment of madrepore coral skeleton implanted in the diaphysis of long bones in dogs].

A madrepore fragment implanted into Dog's long bone diaphysis is quickly vascularized and then progressively resorbed; this is due to an osteoclasic action. At the same time, in replacement of resorbed coral, cancellous bone grows which progressively let the place to compact bone. Injections of diamox given to formerly implanted Dogs, slacken the resorption of coral implants which seems to be the work of carbonic anhydrase contained in osteoclasts.

Absorption↗

[Calcifying bacteria and carbonic anhydrase].

Carbonic anhydrase activity was measured on bacteria known for their calcifying power. The results obtained allow us to conclude that carbonic anhydrase is not present in their enzymatic equipment. Nevertheless, the addition of carbonic anhydrase in culture media increases the growth of the cultures and their calcifying power. This result is due to the direct action of the enzyme on the pH of the culture medium. The results obtained could be applied to the mechanism of dental plaque calcification.

Alcaligenes↗