Objective:To explore the mechanism of treatment of jaundice with Canhuang tablets by molecular docking. Method:The compounds of Canhuang tablets were screened in traditional Chinese medicine systems pharmacology database and analysis platform(TCMSP),and targets for treatment of jaundice were collected from the comparative toxicogenomics database(CTD) and DrugBank database.Molecular docking was carry out on the LibDock module of Discovery Studio 2016 software to evaluate the compound-target interaction,and network characteristics were analyzed. Result:A total of 37 compounds in Canhuang tablets had strong interaction on 14 targets,such as pregnane receptor(PXR),constitutive androstane receptor(CAR),farnesoid X receptor(FXR),et al.These targets played an important role in the treatment of jaundice by regulating bilirubin metabolism,regulating bile acid synthesis and transport,inhibiting immune and inflammatory response,and affecting the formation of collagen in the liver.The compound-target network analysis found that moupinamide,canadine,quercetin,demethoxycurcumin,obacunone,curcumin,corchoroside A,berlambine,alnustone,naringenin were the possible main active compounds of Canhuang tablets,which could interact with more than 7 targets. Conclusion:Molecular docking reveals the possible active compounds and the mechanism of treatment of jaundice with Canhuang tablets,and which is conducive to improvement of quality control standard of this preparation and study of its mechanism for jaundice.

This study was designed to evaluate the effects of drilling through the growth plate and using adipose-derived stem cells (ADSCs) and bone morphogenetic protein-2 (BMP-2) to treat femoral head epiphyseal ischemic necrosis,which can be done in juvenile rabbits.Passage-four bromodeoxyuridine (BrdU)-labeled ADSCs were cultured,assayed with MTT to determine their viability and stained with alizarin red dye to determine their osteogenic ability.Two-month-old,healthy male rabbits (1.2 to 1.4 kg,n=45) underwent ischemic induction and were randomly divided into five groups (group A:animal model control;group B:drilling;group C:drilling & ADSCs;group D:drilling & BMP-2;and group E:drilling & ADSCs & BMP-2).Magnetic resonance imaging (MRI),X-ray imaging,hematoxylin and eosin staining and BrdU immunofluorescence detection were applied 4,6 and 10 weeks after treatment.Approximately 90％ of the ADSCs were labeled with BrdU and showed good viability and osteogenic ability.Similar results were observed in the rabbits in groups C and E at weeks 6 and 10.The animals of groups C and E demonstrated normal hip structure and improved femoral epiphyseal quotients and trabecular areas compared with those of the groups A and B (P＜0.01).Group D demonstrated improved femoral epiphyseal quotients and trabecular areas compared with those of groups A and B (P＜0.05).In summary,drilling through the growth plate combined with ADSC and BMP-2 treatments induced new bone formation and protected the femoral head epiphysis from collapsing in a juvenile rabbit model of femoral head epiphyseal ischemic necrosis.

Objective: To explore the effects of combined application of culture supernatant of human umbilical cord mesenchymal stem cells (hUCMSCs) and ciprofloxacin on Staphylococcus aureus (SA) in vitro. Methods: hUCMSCs were isolated from umbilical cord tissue of full-term healthy fetus after cesarean section and cultured. Cells in the third passage were used in the experiments after identification. SA strains isolated from wounds of burn patients in our burn wards were used in the experiments. Cells were divided into 0, 10, 100, and 1 000 ng/mL lipopolysaccharide (LPS) groups according to the random number table (the same dividing method below). Cells were cultured with culture medium of mesenchymal stem cells (MSCs) after being treated with medium containing the corresponding mass concentrations of LPS for 12 h. At post culture hour (PCH) 6, 12, and 24, 6 wells of culture supernatant of cells in each group were obtained to measure the content of LL-37 with enzyme-linked immunosorbent assay. Ninety blood agar plates were divided into ciprofloxacin control group (CC), ciprofloxacin+ supernatant group (CS), and ciprofloxacin+ supernatant+ LL-37 antibody group (CSL), with 30 blood agar plates in each group. Blood agar plates in group CC were coated with 1.5×10⁸ colony forming unit (CFU)/mL bacteria solution prepared with normal saline. Blood agar plates in group CS were coated with 1.5×10⁸ CFU/mL bacteria solution prepared with normal saline and culture supernatant of hUCMSCs (cultured by culture medium of MSCs, the same below) in double volume of normal saline. Blood agar plates in group CSL were coated with 1.5×10⁸ CFU/mL bacteria solution prepared with normal saline, culture supernatant of hUCMSCs in double volume of normal saline, and 2.6 μL LL-37 antibody in the concentration of 2 μg/mL. At PCH 12, 24, and 48, 10 blood agar plates of each group were harvested to observe the distribution of SA colony on blood agar plate and to measure the diameter of bacterial inhibition ring of ciprofloxacin. The minimum inhibitory concentration (MIC) of ciprofloxacin against SA of each group was recorded. Fractional inhibitory concentration (FIC) indexes of ciprofloxacin in groups CS and CSL at PCH 12, 24, and 48 were calculated, and the effect of synergy was evaluated. Data were processed with analysis of variance of factorial design, one-way analysis of variance, LSD-t test, Kruskal-Wallis test, and Mann-Whitney U test. Results: (1) At each PCH, the content of LL-37 in culture supernatant of cells in 10, 100, and 1 000 ng/mL LPS groups was higher than that in 0 ng/mL LPS group (with t values from 11.22 to 33.36, P values below 0.01); the content of LL-37 in culture supernatant of cells in 100 and 1 000 ng/mL LPS groups was higher than that in 10 ng/mL LPS group (with t values from 2.24 to 18.73, P<0.05 or P<0.01); the content of LL-37 in culture supernatant of cells in 1 000 ng/mL LPS group was higher than that in 100 ng/mL LPS group (with t values from 12.46 to 14.70, P values below 0.01). (2) At PCH 12, 24, and 48, the bacterial colonies in groups CC, CS, and CSL began to integrate over time. At PCH 12, 24, and 48, the diameters of bacterial inhibition ring of ciprofloxacin in group CC were 26, 24, and 23 mm, respectively, with no obvious change. At PCH 12, 24, and 48, the diameters of bacterial inhibition ring of ciprofloxacin in groups CS and CSL were 82, 71, 68 mm, and 74, 59, 56 mm, respectively, significantly longer than those of group CC. (3) At each PCH, the MIC of ciprofloxacin against SA was significantly higher in group CC than in groups CS and CSL (with Z values from 6.22 to 6.71, P values below 0.01); the MIC of ciprofloxacin against SA was significantly higher in group CSL than in group CS (with Z values all equal to 6.72, P values below 0.01). (4) FIC indexes of ciprofloxacin in groups CS and CSL at PCH 12, 24, and 48 were 0.011, 0.032, 0.032, and 0.122, 0.350, 0.350, respectively. The results indicated that culture supernatant of hUCMSCs had synergistically antibacterial effect on ciprofloxacin. Conclusions hUCMSCs can secrete LL-37, and the secretion level is increased with increase of LPS concentration. Combination of culture supernatant of hUCMSCs and ciprofloxacin can decrease the dosage of ciprofloxacin in resisting SA. Once LL-37 is neutralized, the synergistically antibacterial effect of culture supernatant of hUCMSCs is decreased.

Objective To observe detoxifying effectivenesses of baking method on Aconiti kusnezoffii of different qualities and provide evidence for preparation standardization of Aconiti kusnezoffii of traditional Mongoli-an medicine.Methods Water flotation method is used to bracket the Aconiti kusnezoffii according density, and then bracket according size. The total diester alkaloids quality and total monoester Alkaloid quality were determined according to the high efficiency liquid chromatography method.Results The Braked products Aconiti kusnezoffii diameter above 1 cm (B -1), below 1cm (B -2), are prepared by baking method, and the sample of total monoester alkaloids contents are 0.39%,0.38%, 0.19%, 0.21% respectively; the total diester alkaloids contents are 0.18%,0.19%,0.29%,0.29%.Conclusion Use the baking method processing drugs effectiveness of Aconiti kusnezoffii are related with their quality.To suggest bracket the Aconiti kusnezoffii according density and size before preparing Aconiti kusnezoffii of traditional Mongolian medicine by baking method.

Objective To establish a HPLC method for the determina-tion of aconitine, hypaconitine, mesaconitine, benzoylaconitine, benzoylhypacoitine and benzoylmesaconine in traditional Mongolia medi-cine Menggenwusen -Wurile. Methods Column was the Halo C18 HPLC column, mobile phase consisted of acetonitrile -tetrahydrofuran (25∶15)as mobile phase A and 0.1 mol? L-1 of ammonium acetate so-lution as mobile phase B with gradient elution, the volume flow rate was 0.8 mL ? min-1 , column temperature was 30 ℃, detection wavelength was 235 nm.Results The concentration ranges of aconitine, hypaconi-tine, mesaconitine, benzoylaconitine, benzoylhypacoitine and benzoylmesaconine showed good linear relationship in the 3.48 ×10-3 -1.74 ×10-1 , 3.24 ×10 -3 -1.62 ×10-1 , 6.96 ×10 -3 -3.48 ×10-1 , 2.06 ×10 -3-1.03 ×10 -1 ,4.02 ×10 -3 -2.02 ×10 -1 ,6.66 ×10 -3 -3.33 ×10 -1 mg? mL-1 ( r were 0.999 5,0.999 0,0.999 0,0.999 9, 0.999 9, 0.999 9, respectively ) .The average recovery rates were 95.54%, 103.18%, 102.75%, 92.29%, 99.41%, 107.8%, respec-tively.RSDs were 3.70%,1.89%,4.94%,3.67%,4.29%, 3.89%, respectively.Conclusion This method is convenient, accurate and reproducible, applicable for detection of the monoester type alkaloids and diester type alkaloids in traditional Mongolia medicine Menggenwusen-Wurile.