Two unusual novel iridoid glycosides from fruit and their biological activities.

Two unusual novel iridoid glycosides, cornsecoside A () and cornsecoside B (), were isolated from a 40% ethanol elution fraction of a 50% ethanol extract of fruit. Their structures were determined by spectroscopic data analysis combined with hydrolysis and ECD spectroscopy. In addition, compounds and exhibited cytotoxic activity against Bel-7402 cells with IC values of 8.

[HPLC Characteristic Fingerprint of "Boju" Chrysanthemum morifolium].

Objective: To provide a scientific basis for quality control of "Boju" Chrysanthemum morifolium by establishing a HPLC characteristic fingerprint.

Methods: The HPLC analysis was performed on a Spursil C18 chromatographic column (250 mm x 4. 6 mm, 5 µm), and the mobile phase was acetonitrile-0.

[Determination of Trace Elements in Different Parts of Boju and Root Soil by ICP-MS].

Objective: To explore the contents and enrichment status of the trace elements in Boju by using ICP-MS.

Methods: Trace elements of the different parts of Boju and the soil near the roots were determined by microwave digestion-ICP-MS and the correlation of the data obtained was tested by using the statistical software.

Results: There were differences among the contents of the eight elements in the different parts of Boju and the soil; there were obvious differences in the enrichment factor of eight elements in the different parts of Boju, which ranged from 0.

[Experiences of Professor Zhou Zhong-ying in diagnosing and treating rheumatoid arthritis by data mining].

Objective: To summarize Professor ZHOU Zhong-ying's academic ideas and clinical experiences in diagnosing and treating rheumatoid arthritis (RA).

Methods: Totally 153 clinical case reports were recruited. Data mining techniques like frequencies, factor analysis, and association analysis were used in order to find out laws of syndrome, pathogenesis, treatment methods, formulae and medication.