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Effect of richlocaine on proliferative activity of osteoblasts and intracellular calcium content in rats
A V Zadorozhnyi1, V L Popkov, P A Galenko-Yaroshevskii
1Kuban State Medical Academy, Krasnodar; Krasnodar Research Center, Russian Academy of Medical Sciences, Krasnodar Region Administration; Russian State Medical University, Moscow.
Abstract:
We studied the effect of local anesthetic richlocaine on proliferation and intracellular calcium content in cultured osteoblasts from rat parietal bone. In a concentration of 1 mg/ml this drug produced a cytotoxic effect on osteoblasts. In concentrations of 0.01 and 0.001 mg/ml richlocaine in the absence and presence of subtoxic dose of sodium cyanide (0.2 mM) increased the number of osteoblasts by 15.4 and 36.6 or 13.8 and 38.6%, respectively. In a concentration of 1 mg/ml, richlocaine increased the content of cytosolic calcium in osteoblasts by 105%. These effects of richlocaine in low concentrations (0.01 and 0.001 mg/ml) can be related to stimulation of metabolic processes in osteoblasts.
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