RESUMO
A rapid analysis method of piperazine ferulate tablets by optic-fiber sensing technology with UV-vis absorption spectrum was established.Qualitative and quantitative data were obtained and compared by maximum and minimum wavelength,absorbance and contrast spectra.Similarity method was used to identify authenticity of drugs.The difference of contents measured by this method and UV determination method in China Pharmacopoeia showed no statistical significance (P＞0.05),while the similarity can be used as a parameter to identify the authenticity of drugs.
RESUMO
Objective:To observe the expression of P70 S6 kinase(P70 S6K) in parotid acinic cell carcinoma. Methods:P70 S6K expression was examined by means of SP immunohistochemical technique and Western blot test in 30 cases of parotid acinic cell carcinoma. Results:Western blot revealed that P70 S6K expression in parotid acinic cell carcinoma was 58% higher than that in normal parotid tissue. Immunohistochemical assay showed that positive expression ratio of P70 S6K in parotid acinic cell carcinoma and in normal parotid tissue was 100.0% and 33.3%(P