Biomedical subjects

Yong-lin Wang

Publications and source records attributed to Yong-lin Wang.

4 recordsLinked to original sources

PubMed2006

[Study on quality for Herba Polygoni Orientalis].

OBJECTIVE: To establish the qualitative and quantitative detective methods of Herba Polygoni Orientalis. METHOD: Isorientin, orientin, protocatechuic acid and gallic acid in Herba Polygoni Orientalis were identified by TLC. The contents of isorientin and orientin in Herba Polygoni Orientalis were determined by HPLC. RESULT: Isorientin, orientin, protocatechuic acid and gallic acid could be identified by TLC. Isorientin and orientin were well separated with Diamonsil C18 column and acetonitrile-0.1% phosphoric acid (18:82) as mobile phase. The linear range of isorientin was 0.075-0.90 microg. The average recovery of isorientin was 98.8% and RSD was 2.1%. The linear range of orientin was 0.041-0.49 microg. The average recovery of orientin was 98.8% and RSD was 2.1%. CONCLUSION: The methods can be used for qualitative identification and quantitation determination of Herba Polygoni Orientalis.

Chromatography, High Pressure Liquid↗

PubMed2005

[Determination of gallic acid in Melastoma dodecandrum by RP-HPLC].

OBJECTIVE: To establish a RP-HPLC method for the determination of gallic acid in Chinese herb Melastoma dodecandrum, and to evaluate the quality of the herb. METHOD: The RP-HPLC analysis was achieved by using a Polaris C18 column and tetrahydrofuran-methanol-0.2% phosphoric acid (0.5:0.5:99) as the mobile phase, with a flow rate of 1.0 mL x min(-1), and detected by UV at 274 nm. RESULT: The content of gallic acid was from 0.020% to 0.081%, in ten groups of M. dodecandrum collected from different locations. CONCLUSION: The method is a simple, convenient and rapid. It can be used for quality evaluation of M. dodecandrum.

China↗

PubMed2005

[Effect of Guliu capsule combined with 89Sr therapy on metastatic bone tumor].

OBJECTIVE: To evaluate the therapeutic effects of Guliu capsule (GLC) combined with 89Sr in treating metastatic bone tumors. METHODS: On the basis of random sampling and grouping, 50 patients with metastatic bone tumors were selected to receive combined treatment with GLC and (89)Sr with another 50 patients recruited for (89)Sr treatment alone. The therapeutic effect of the therapies were evaluated according to the relief of ostalgia and quality-of life (QOF), local bone metabolism and hematopoietic function of the bone marrow. RESULTS: The efficacy rate of GLC+89Sr and (89)Sr in relieving ostalgia was 94.0% and 76.0%, and the rate of QOF improvement and stabilization was 94.0% and 74.0%, respectively, both showing significant difference between the two groups (P<0.05). The effect of the two treatment protocols on local bone metabolism and their hemotoxicity were also significantly different (P<0.05, P<0.01, respectively). CONCLUSION: Combined treatment with GLC and (89)Sr is effective for metastatic bone tumor and improves the patient's QOF with enhanced ostalgia relief rate and decreased hemotoxicity.

Adolescent↗

PubMed2003

[Qualitative and quantitative studies on qianliebeixi capsules].

OBJECTIVE: To establish a method of quality control on qianliebeixi capsules. METHOD: To clarify semen vaccarine by TLC, to determinate the contents of quertin and kaempferol in prepations, by HPLC. Chromatographic conditions: C18 column with METH-0.2%H3PO4(47:53) as mobile phase; the temperature of column was 40 degrees C, and quercetin was detected at 370 nm with flowing rate 1 ml/min. RESULT: The spots of semen vaccarine were clear in TLC, no interference in negative contrast. The average recovery rate of quertin was 98.9% and the RSD was 2.2%; the average recovery rate in kaempferol was 100.4% and the RSD was 1.7%. CONCLUSION: The resolution of spots were perfect in TLC, the spots were easy to distinguish, The method is simple, rapid as well as reproducible and can control the quality of qianliebeixi capsules effectively.

Adiantum↗