Apocarotenoids from the fresh roots of Rehmannia glutinosa and their anti-pulmonary fibrosis activity.

Six undescribed compounds (1-6) and twenty-three known analogues (7-29) were isolated from the fresh roots of Rehmannia glutinosa. The structures of the compounds (1-29) were established through the application of spectroscopic analysis. Compounds 3, 4, 6, 8, 13, 18, 21, 22, 25, and 28 exhibited excellent anti-pulmonary fibrosis activity.

Targeted isolation of lignans from the roots of Anthriscus sylvestris (L.) Hoffm. by small molecule accurate recognition technology.

Five undescribed lignans (1-5), along with sixteen known lignans (6-21), were isolated from the roots of Anthriscus sylvestris using small molecule accurate recognition technology (SMART). The structures of the isolated compounds were determined by comprehensive spectroscopic analyses, and the absolute configurations of compounds 3-5 were elucidated by comparison of their calculated and experimental ECD spectra. Compounds 5, 14-15, 19, and 21 exhibited significantly inhibitory effects against hypoxia-stimulated abnormal proliferation of pulmonary arterial smooth muscle cells (PASMCs).

Three new flavonoid glycosides from the herbaceous stems of .

Phytochemical investigation of the -butanol extracts of the herbaceous stems of led to the isolation of eight flavonoids that included three new flavonoid glycosides (-) and five previously reported analogues (-). Their structures have been identified on the basis of various spectral data. Besides, all the flavonoids were tested for their ability to inhibit -glucosidase under the positive control of acarbose, and the results indicated that none of them exhibited significant inhibitory effect on -glucosidase at 100 μM.

Five new eremophilane-type sesquiterpenes from the fresh roots of Rehmannia glutinosa.

Five undescribed eremophilane-type sesquiterpenes, remophilanetriols E-I (1-5), along with seven known compounds (6-12) were isolated from the fresh roots of Rehmannia glutinosa. Their structures were characterized by extensive spectroscopic data analysis and their absolute configurations were determined by comparing their calculated electronic circular dichroism (ECD) spectra and experimental ECD spectra. The anti-pulmonary fibrosis activities of all compounds were evaluated in vitro by MTT methods, and compounds 2, 8, 10, and 12 exhibited excellent anti-pulmonary fibrosis activities.

Diarylpentanoids and phenylpropanoids from the roots of Anthriscus sylvestris (L.) Hoffm.

Three pairs of undescribed diarylpentanoid enantiomers (1-3) and five undescribed phenylpropanoids (4-8), along with seven known compounds, were isolated from the roots of Anthriscus sylvestris. The structures of compounds (1-8) were determined by analysis of their 1D and 2D NMR spectra, HRESIMS, and electronic circular dichroism. In addition, the inhibitory activities against hypoxia-stimulated pulmonary arterial smooth muscle cells abnormal proliferation were evaluated by MTT assay.

Salviamilthone A-O, diterpenoid quinones from Salvia miltiorrhiza.

Fifteen undescribed diterpenoid quinones salviamilthone A-O (1-15), together with three known diterpenoid quinones (16-18), were isolated from the roots of Salvia miltiorrhiza Bunge. Their structures were elucidated using 1D and 2D NMR data, while the relative and absolute configurations were confirmed by NOESY correlations and comparison between experimental and calculated ECD spectra. In the evaluation of bioactivities, salviamilthone J (10), salviamone (18) (10 μM) significantly increased cell viability and decreased the expression of IL-1β in lipopolysaccharide-induced BEAS-2B cells.

Diterpenoid quinones from the Salvia miltiorrhiza and their lung protective activity.

Seven new diterpenoids quinones (1-6), together with five known ones (7-11), were isolated from the roots of Salvia miltiorrhiza Bunge. Their structures were elucidated by using 1D and 2D NMR data, while the relative and absolute configurations were confirmed by interpretations of the NOESY correlations and comparison of the experimental and calculated ECD spectra. In the evaluation of bioactivities, salviamilthiza C (3), significantly increased cell viability and decreased the expression of IL-1β in LPS-induced BEAS-2B cells.

Ionones and lignans from the fresh roots of Rehmannia glutinosa.

Nine undescribed compounds, together with 21 known components, were isolated from the fresh roots of Rehmannia glutinosa. Their structures were elucidated based on spectroscopic data analysis, and the absolute configurations of undescribed compounds were determined by comparison of their calculated and experimental electronic circular dichroic (ECD) spectra and interpretation of their optical rotation data. The α-glucosidase inhibitory effects of the isolated compounds were investigated and all of them exhibited slightly inhibitory activities.

Ten undescribed diterpenoid quinones derived from the Salvia miltiorrhiza.

This study aimed to report the structure elucidation of the compounds isolated from Salvia miltiorrhiza, and their biological evaluations. Ten undescribed diterpenoid quinones and 10 known analogues were isolated from the dried roots of S. miltiorrhiza.

Establishment and evaluation of a theater influenza monitoring platform.

Background: Influenza is an acute respiratory infectious disease with a high incidence rate in the Chinese army, which directly disturbs military training and affects soldiers' health. Influenza surveillance systems are widely used around the world and play an important role in influenza epidemic prevention and control.

Methods: As a theater centers for disease prevention and control, we established an influenza monitoring platform (IMP) in 2014 to strengthen the monitoring of influenza-like illness and influenza virus infection.