Guang-ming Luo

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Acinetobacter baumannii is an important nosocomial pathogen able to cause severe infections in an intensive care unit (ICU). However, there is a lack of analysis regarding the epidemiology and resistance of A. baumannii in respiratory department ICUs. In this study, clinical isolates were collected from the respiratory department ICU of Southwest Hospital(More)
OBJECTIVE To investigate the triterpenoids chemical constituents in rhizome of Alisma gramineum. METHOD Silicon gel chromatography and HPLC techniques were employed for isolation and purification of the constituents, and the structures were elucidated by various spectral analyses such as NMR, MS and IR. RESULT 5 protostane-type tetracyclic triterpenoids(More)
Gardenia jasminoides Ellis (Zhi Zi in Chinese) (Rubiaceae), an ancient medical herb, is noted for its medicinal properties in Chinese, Korean, Japanese and Vietnamese pharmacopoeias. It has been demonstrated that Fructus Gardeniae (FG), namely the dried ripe fruits of G. jasminoides, has extensive pharmacological activities, such as protective activity(More)
OBJECTIVE To investigate the chemical constituents of Gardenia jasminoides fruits. METHODS Various column chromatography were used in the isolation and purification, and physiochemical constant determination and spectral analysis were adopted to determine the chemical structures. RESULTS Twelve compounds were isolated from Gardenia jasminoides including(More)
OBJECTIVE To investigate the chemical components of Gardenia jasminoides. METHODS Various column chromatography were used in the isolation and purification, and physiochemical constant determination and spectral analysis were adopted to idenitify the chemical structures. RESULTS Ten compounds were isolated and identified as jasminoside A(1),(More)
Collecting different commodity grade Gardenia jasminoides of wild and cultivated varieties all over the country, obtaining color information from each batch of G. jasminoides by the standard D65 light source and image acquisition system, quantifing the gardenia plumpness information by the digital display vernier caliper, determinating 6 kinds of effective(More)
OBJECTIVE To establish a method of HPLC fingerprint and chemical pattern recognition of liposoluble chemical components for quality evaluation of Euodiae Fructus. METHODS The HPLC chromatographic separation was performed on a C18 column (250 mm x 4.6 mm, 5 microm). The mobile phase was a mixture of acetonitrile-0.5% acetic acid in gradient elution with(More)
The chemical constituents of Lagotis brevituba were rapidly determined and analyzed by using ultra performance liquid chromatography tandem quadrupole time of flight mass spectrometry (UPLC-Q-TOF-MS/MS) method, providing material basis for the clinical application of L. brevituba. The separation was performed on UPLC YMC-Triart C₁₈ (2.1 mm×100 mm, 1.9 μm)(More)
OBJECTIVE To develop a high performance capillary electrophoresis method for Citrus aurantium fingerprints to control its quality. METHOD The background electrolyte (BGE) was an 80 mmol x L(-1) boric acid solution containing 15 mmol x L(-1) borate. The pH of the BGE was adjusted to 9.70 with KOH solution. The detection wavelength was 201 nm and a voltage(More)
OBJECTIVE To clone full-length sequence of Cu/Zn-SOD gene of Evodia rutaecarpa. METHODS The genes ORF,3,and 5,noncoding regions were achieved using the RACE technology. RESULTS This genes full-length was 717 bp, the open reading frame was 459 bp and 152 amino acids were encoded. The accession number of GenBank was JQ285851. CONCLUSION This Cu/Zn-SOD(More)