Analysis on component difference in Citrus reticulata before and after being processed with salt by UPLC-Q-TOF/MS / 中国中药杂志

To analyze components of Citrus reticulata and salt-processed C. reticulata by ultra-performance liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF/MS), and compared the changes in components before and after being processed with salt. Principal component analysis (PCA) and partial least squares discriminant analysis (OPLS-DA) were adopted to analyze the difference in fingerprint between crude and processed C. reticulata, showing increased content of eriocitrin, limonin, nomilin and obacunone increase in salt-processed C. reticulata. Potential chemical markers were identified as limonin, obacunone and nomilin, which could be used for distinguishing index components of crude and processed C. reticulata.

Simultaneous determination of jatrorrhizine, palmatine, berberine, and obacunone in Phellodendri Amurensis Cortex by RP-HPLC / 中国中药杂志

<p><b>OBJECTIVE</b>To develop a HPLC method to determine the content of jatrorrhizine, palmatine, berberine, and obacunone in Phellodendri Amurensis Cortex simultaneously. MEHTOD: The separations were carried out at 25 degrees C on a Phenomenex Gemini C18 column (4.6 mm x 250 mm, 5 microm) eluted with acetonitril and water containing 0.1% phosphoric acid in gradient mode. The flow rate was 1.0 mL x min(-1), detection wavelengthes were 345 nm for jatrorrhizine , palmatine, berberine and 210 nm for obacunone.</p><p><b>RESULT</b>The average recoveries of jatrorrhizine, palmatine, berberine, and obacunone were 98.94%, 101.17%, 96.22% and 98.90%, respectively.</p><p><b>CONCLUSION</b>The method is simple, accurate and repeatable, and can be used in content determination of jatrorrhizine, palmatine, berberine, and obacunone in Phellodendri Amurensis Cortex.</p>

Alpiroprida: um novo antimigranoso: ensaio multicêntrico duplo-cego cruzado / Alpiropride: a new antimigraine drug: a multicenter double crossed trial

Através de um estudo multicêntrico duplo-cego cruzado, foram avaliados os efeitos da alpiroprida contra os de um produto de referência(oxetorona), no tratamento de enxaqueca. Os resultados obtidos com a alpiroprida foram superiores, tanto na eficácia quanto na tolerância.