Are the Symptoms of Calcific Tendinitis Due to Neoinnervation and/or Neovascularization?
This is the first study to show a significant increase in neovascularization and neoinnervation in calcific tendinitis lesions of the shoulder along with an eightfold increase in mast cells and macrophages. The findings are consistent with the hypothesis that, in calcific tendinitis, the calcific material is inducing a vigorous inflammatory response within the tendon with formation of new blood vessels and nerves.
We conclude that neither protein kinase C nor the hydrogen peroxide-generating enzymes are affected by thiopental or methohexital. The unimpaired Ca2+ response suggests that the function of the receptors and G-proteins were also unimpaired. Taken together, this indicates that the site of action of thiopental is in the cellular signalling upstream of protein kinase C.