[Chemical constituents of roots of Rodgersia aesculifolia].

The chemical compositions of Rodgersia aesculifolia were isolated and purified using a combination of silica gel, reverse phase silica gel, Sephadex LH-20 column chromatography, and semi-preparative HPLC. The structures were determined according to the physicochemical properties and spectroscopic data. The MTT method and the ABTS kit were used to measure the cytotoxicity and antioxidant capacity of all isolates, respectively. Thirty-four compounds were isolated from R. aesculifolia and elucidated as stigmastane-6ß-methoxy-3ß,5α-diol(1), stigmastane-3ß,5α,6ß triol(2), ß-sitosterol(3), ß-daucosterol(4), stigmast-4-en-3-one(5), bergenin(6), 11-ß-D-glucopyranosyl-bergenin(7), 11-O-galloybergenin(8), 1,4,6-tri-O-galloyl-ß-D-glucose(9), gallic acid(10), 3,4-dihydroxybenzoic acid methyl ester(11), ethyl gallate(12), ethyl 3,4-dihydroxybenzoate(13), caffeic acid ethyl ester(14), p-hydroxybenzeneacetic acid(15), 4-hydroxybenzoic acid(16), 2,3-dihydroxy-1-(4-hydroxy-3-methoxyphenyl)-propan-1-one(17), 3,7-dimethyl-2-octene-1,7-diol(18), crocusatin-B(19), neroplomacrol(20), geniposide(21), 3-hydroxyurs-12-en-27-oic acid(22), 3ß-trans-p-coumaroyloxy-olean-12-en-27-oic acid(23), aceriphyllic acid G(24), isolariciresinol(25), trans-rodgersinine B(26), cis-rodgersinine A(27), neo-olivil(28),(7S,8R)-dihydro-3'-hydroxy-8-hydroxy-methyl-7-(4-hydroxy-3-methoxy phenyl)-1'-benzofuranpropanol(29), 5,3',4'-trihydroxy-7-methoxyflavanone(30), quercetin 3-rutinoside(31), catechin-[8,7-e]-4ß-(3,4-dihydroxy-phenyl)-dihydro-2(3H)-pyranone(32), ethyl α-L-arabino-furanoside(33), and l-linoleoylglycerol(34). One new compound was discovered(compound 1), 25 compounds were first isolated from R. aesculifolia, and 22 compounds were first isolated from the Rodgersia plant. The results indicated that compounds 22-24 possessed cytotoxicity for HepG2, MCF-7, HCT-116, BGC-823, and RAFLS cell lines(IC_(50) ranged from 5.89 µmol·L~(-1) to 20.5 µmol·L~(-1)). Compounds 8-14 and 30-32 showed good antioxidant capacity, and compound 9 showed the strongest antioxidant activity with IC_(50) of(2.00±0.12) µmol·L~(-1).

[Sijunzi Decoction Promote the Repair of Intestinal Epithelial Cell Injury via Activating TLR-2/My D88 Signaling Pathway].

Objective: To study the effect and mechanism of Sijunzi decoction( SJZD) containing serum on the repairing of gastrointestinal mucosal damage. Methods: SJZD containing serum was prepared by serum pharmacological method. Cell migration model was established by tips scratch method, Real-time-cell-analyzer( RTCA) was used to mensurate IEC-6 cell proliferation, the mRNA and protein expression of TLR-2 and My D88 mRNA were detected by qRT-PCR and Western blot analysis,respectively. Results: Medium dose( 10%) and high dose( 20%) of SJZD containing serum stimulated IEC-6 cell migration at 8 h after cell damage; medium dose( 10%)and high dose( 20%) of SJZD containing serum increased IEC-6 cell proliferation at 12 h after cell damage; low dose( 5%),medium dose( 10%) and high dose( 20%) of SJZD containing serum enhanced IEC-6 proliferation both at 24 h and 36 h after cell damage. Medium dose( 10%) and high dose( 20%) of SJZD containing serum upregulated TLR-2 and My D88 mRNA and protein expression,respectively. Conclusion: Sijunzi decoction can repair the injury of gastrointestinal mucosal barrier,the mechanism may be related to its effect on activating TLR-2 / My D88 signaling pathway,and promoting IEC-6 cell migration and proliferation.

[Study on four natures of six flavor Chinese materia medica as rhizoma coptidis and radix aconiti lateralis praeparata etc].

OBJECTIVE: To study on four natures of six flavor Chinese meteria medica as rhizoma coptidis, radix scutellariae, radix aconiti lateralis praeparata, rhizoma zingiberis, rhizoma dioscoreae and radix et rhizoma glycyrrhizae. METHODS: To determine the biological enthalpy of extracts of Chinese meteria medica, rats' metabolites and excrement after feeding the extract of medicines and the standard substance of basic by the oxygen bomb calorimeter. RESULTS: The biological enthalpy of rhizoma coptidis, radix scutellariae, radix aconiti lateralis praeparata, rhizoma zingiberis, rhizoma dioscoreae and radix et rhizoma glycyrrhizae were (3006.02 +/- 201.51)J/g, (1592.41 +/- 404.41)J/g, -(433.10 +/- 64.43)J/g, -(665.72 +/- 198.59)J/g, -(18.41 +/- 50.08)J/g, (29.55 +/- 55.13)J/g respectively. According to the results, rhizoma coptidis and radix scutellariae showed cold properties, whereas those of radix aconiti lateralis praeparata and rhizoma zingiberis were opposite as well as rhizoma dioscoreae and radix et rhizoma glycyrrhizae were neutral drugs. CONCLUSION: The four natures of Chinese meteria medica presente in traditional Chinese pharmacology could be determined by the mathematical model of four natures.

[A new qualitative and quantitative analytical method of chromatographic fingerprints: total quantum statistical moment].

A new qualitative and quantitative analytical method of the chromatographic fingerprints: the Total Quantum Statistical Moment (TQSM) has been eluciated and established according to statistical moment principle. The study was carried out with model drugs as the alcohol extracted liquid for Radix et Rhizoma Rhei (AELRR) by HPLC under the chromatographic conditions that the column was C18, 4.6 mm x 250 mm, 5 microm; the detection of wavelengths was set at 254 nm; a solution of acetonitrile: 1% acetic acid water (from 0:100 to 100:0) was carried with gradient elution as the mobile phase; the ratio of flow was 1 mL min(-1); the temperature was 40 degrees C. The coefficients were dealt with Excel document. It has been established the expressions that consists of four main parameters: 1) total quantum zero moment as AUC(T), area under curve; 2) total quantum respondent ratio as AUCPW(T), area under curve per weight; 3) total quantum center moment as MCRT(T), mean chromatographic retention time of total quantum, expressed by lambda(T); 4) total quantum variance as VCRT(T), variance of mean chromatographic retention time of total quantum, expressed by sigma2(T), by which we have obtained. The TQSM's parameters of the AELRR, such as AUC(T) as 3.273 x 10(8) microV s, AUCPW(T) as 2.286 x 10(6) microV s mg (-1), MCRT(T) as 33.50 min, VCRT(T) as 484.4 min2, and total quantum concentration as 143.2 mg mL(-1). The total quantum statistic moment can be characterized the curve of chromatographic fingerprints with expressive parameters above, also used to quantitative analyses by AUC(T), to qualitative analyses by AUCPW(T), MCR(T), and VCRT(T).