Twenty-two compounds were isolated from the flowers of Scabiosa tschilliensis. Their structures were identified by spectroscopic methods as octacosanol (1), stearic acid (2), β-sitosterol (3), oleanolic acid (4), apigenin (5), luteolin (6), daucosterol (7), kaempferol-3-O-β-D-6-O-(p-hydroxycinnamoyl) -glucopyranoside (8), kaempferol-3-O-β-D- (3, 6-di-p-(hydroxycinnamoyl) -glucopyranoside (9), apigenin-7-O-β-D-glucopyranoside (10), luteolin-4'-O-β-D-glucopyranoside (11), apigenin-7-O-rutinoside (12), luteolin-7-O-β-D-glucopyranoside (13), apigenin-4'-O-β-D-glucopyranoside (14), caffeic acid methyl ester (15), loganin (16), adenosine (17), luteolin-6-C-β-D-glycopyranosyl (18), sweroside (19), sylvestrosides I (20), sylvestrosides II (21), urceolide (22). Among them, compounds 1, 2, 7-9, 12, 15, 17-18, 20-22 were isolated from the genus Scabiosa for the first time, and compounds 1-4, 6-9, 11-12, 14-22 were isolated from this plant for the first time. 13C-NMR data of 22 were reported for the first time.
Dipsacaceae ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Flowers ; chemistry ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization

OBJECTIVETo study the cyclodextrin inclusion complexes of Dragon's blood for improving the drug solubility and the preparation.

METHODThe inclusion complexes were prepared with beta-cyclodextrin, HP-beta-cyclodextrin, SBE-beta-cyclodextrin and confirmed by DTA. The activity of the inclusion complex was tested by animal experiments. Inclusion complexes tablets were prepared and the dissolution test was performed.

RESULTThe solubility of inclusion complexes was increased to 13. 75-168. 39 times. The activity of the inclusion complex was markedly improved, and dissolution rate was 78.69%.

CONCLUSIONThe cyclodextrin inclusion complexes of Dragon's blood have a good solubility, dissolution rate and pharmacological activity.

2-Hydroxypropyl-beta-cyclodextrin ; Cyclodextrins ; chemistry ; Drug Stability ; Drugs, Chinese Herbal ; chemistry ; Plant Extracts ; chemistry ; Solubility ; Tablets ; chemistry ; beta-Cyclodextrins ; chemistry

Objective To investigate the correlation between the expression of aryl hydrocarbon receptor(AHR) mR-NA and tryptophan dioxygenase (TDO) mRNA in bone marrow mononuclear cells of patients with acute leukemia.Methods Sixty-five patients with newly diagnosed acute leukemia in Henan Provincial People's Hospital from August 2013 to August 2014 were selected as observation group,and there were 50 patients with acute myeloid leukaemia(AML) and 15 patients with acute lymphoblastic leukaemia(ALL).Fifteen patients with anemia were selected as control group in the same period(excluding the malignant disease of blood system).The expression of AHR mRNA and TDO mRNA in bone marrow mononuclear cells of patients in the groups was detected by real time fluorescence quantitative reverse transcription polymerase chain reaction.The correlation between AHR mRNA and TDO mRNA was analyzed.Results The expression of TDO mRNA and AHR mRNA in bone marrow mononuclear cells of AML and ALL patients in the observation group was significantly higher than that in the control group(P ＜0.05).There was no significant difference in the expression of TDO mRNA and AHR mRNA in bone marrow mononuclear cells between AML and ALL patients (P ＜ 0.05).There was significantly positive correlation between the expression of TDO mRNA and AHR mRNA in bone marrow mononuclear cells of AML and ALL patients(r =0.801,0.922;P ＜ 0.05).The levels of white blood cell,hemoglobin,platelet and lactate dehydrogenase were not related to the expression of TDO mRNA and AHR mRNA in AML and ALL patients(P ＜ 0.05).Conclusion The expression of TDO and AHR in bone marrow mononuclear cells of acute leukemia patients is high,and the TDO-KYN-AHR pathway promotes the development of acute leukemia.

Objective To observe the changes in retinal structure after shortpulse laser technique and conventional laser surgery.Methods Oburg fundus photography,spectral domain optical coherence tomography (SD-OCT) and fundus autofluorescence (FAF) examination were performed in 16 patients (22 eyes) receiving shortpulse laser surgery,following 19 patients (25 eyes) undergoing conventional laser surgery to observe the spot situation with the time for postoperative 1 h,1-2 weeks,1-3months,＞3-6 months,＞ 6-12 months.Results After 1 h of short-pulse laser,fundus color displayed light spot of the center was white and gray,which surrounded by gray dizzy;SD-OCT images showed spot ellipsoid area formed a ring out of band,but the inner retina and retinal pigment epithelium (RPE) had no significant change.FAF showed multiple spontaneous fluorescence signals to reduce the circular area;at 1-2weeks after laser surgery,fundus photography showed spot center for white and gray,and the surrounded gray dizzy became larger,and FAF spontaneous fluorescence signal in light spot center was enhanced,while SD-OCT showed that the outer nerve sensory layer was pulled to the photocoagulation spot center.From 1 month to 3 months,some of the epithelial layers of the nerves were restored to normal,and ＞ 3-6 months,the epithelial layer of the nerve was basically restored to normal;and ＞ 6-12 months,the nerve epithelium was back to normal.As for conventional laser surgery,1 h later,fundus photography and FAF performance were similar to the short-pulse laser,and the SD-OCT showed that the whole retinal layer had dropsy in the spot place;after 1-2 weeks,the spot center was gray and white,and the surrounded gray halo turned enlargement,and FAF spontaneous fluorescence signal in light spot center was enhanced,while SD-OCT showed that the outer nerve sensory layer was pulled to the spot center with adhesion;after 1-3 months,fundus photography and FAF performance were similar to those of short-pulse laser,while SD-OCT presented the RPE cells hyperplasia and ring atrophy around the spot,and the RPE atrophy around the spot was gradually enlarged,plus the whole layer of the nerve epithelium was adhesion ＞ 3-6 months after surgery.＞6-12 months later,the results showed the RPE layer atrophy and nerve epithelium layer adhesion.The results of FAF in all follow-up groups were consistent with that of OCT results.Conclusion OCT and FAF are the important methods to observe the postoperative retinal laser structure changes,which can provide objective basis for the confirmation that short-pulse laser has less damage than the conventional laser treatment,and this provides a new research idea to optimize the laser parameters.

Objective To investigate the effects of mother-infant early skin-to-skin contact with different duration on neonatal behavior and breast-feeding.Methods 80 infants born from January 2017 to June were selected and randomly divided into observation group and control group,40 cases in each group.The two groups were given early maternal and infant skin contact after birth.The observation group lasted for 1 hour,while the control group lasted until the perineal wound was sutured,with an average of (30.75 ± 1.13) minutes.Comparisons were made between the two groups in terms of crying within 0-1 h,5-6 h after birth,neonatal behavioral score (BNBAS) at 11 min and 119 min after birth,breastfeeding at the first and 6 weeks and 6 months after delivery.Results At 0-1 h,5-6 h after birth,the number and duration of crying in the observation group were significantly less than those in the control group,and the BNBAS score at 119 min was significantly lower than that in the control group (P ＜ 0.05).The score of breast feeding measurement tool in the observation group was (10.45 ± 2.22) at the time of first feeding,which was significantly higher than that in the control group (8.08 ± 1.61) (P ＜0.05).The rate of exclusive breastfeeding in the observation group was 72.5％ and 52.5％ at 6 weeks and 6 months postpartum,which was significantly higher than that in the control group (37.5％ and 17.5％,P ＜ 0.05).Conclusions 1 hour of mother-infant early skin-to-skin contact can reduce awakening and cry of infant,improve the effect of breast-feeding.

OBJECTIVETo provide materials for the study of the function of ESC42 protein specifically expressed in the human epididymis.

METHODSThe ESC42 gene was amplified from the human epididymis cDNA library by PCR and then cloned into prokaryotic expression vector pGEX-4T-1, expressed and purified by recombinant DNA techniques. The specificity of ESC42 protein was identified by Western blot and MALDI-TOF-MS. The database was searched by Ms-Fit.

RESULTSThe recombinant plasmid expressed a Mr 38 x 10(3) fusion protein in E. coli at a level of 30% of the total protein, and the purity was as high as 99%. The ESC42 protein was identified by ESC42 monoclonal antibody and its molecular weight was 11 978.12, tested by MALDI-TOF-MS. The peptide mass fingerprint analysis showed that the coverage rate of the sequence reached 48% with 100% matching. The motif scan in Prosite database reveal that ESC42 belonged to the beta-defensin family and had antibacterial activity.

CONCLUSIONObtaining high purity of rhESC42 protein may lay a foundation for the study of its functions.

Amino Acid Sequence ; Animals ; Antibodies, Monoclonal ; immunology ; Cloning, Molecular ; Defensins ; biosynthesis ; genetics ; immunology ; Epididymis ; metabolism ; Escherichia coli ; genetics ; Gene Library ; Humans ; Male ; Mice ; Mice, Inbred BALB C ; Plasmids ; genetics ; Recombinant Fusion Proteins ; biosynthesis ; immunology

A gene appA encoding a novel phytase was firstly cloned from Hafnia alvei by PCR and sequenced. The gene was consisted of 1335 bp, encoding 444 amino acids. The calculated molecular weight of the mature APPA was about 45.2 kD. The gene appA was expressed in E. coli BL21 (DE3). Recombinant APPA was purified and its enzymatic properties were determined. The optimum pH for the enzyme was 4.5 and the optimum temperature was 60 degrees C. The pH stability of r-APPA is good, the relative phytase activity was above 80% after treated in buffers of pH 2.0-10.0. The specific activity of r-APPA is 356.7 U/mg, and the Km value was 0.49 mmol/L and Vmax of 238 U/mg. The enzyme showed resistance to pepsin and trypsin treatment.
6-Phytase ; biosynthesis ; genetics ; isolation & purification ; Amino Acid Sequence ; Cloning, Molecular ; Escherichia coli ; genetics ; metabolism ; Hafnia ; enzymology ; genetics ; Hydrogen-Ion Concentration ; Molecular Sequence Data ; Recombinant Proteins ; biosynthesis ; genetics ; isolation & purification ; metabolism ; Temperature

Aspergillus fumigatus wild-type phytase has many favorable properties, such as a good thermorstability and a broad pH optimum. However, the specific activity of the enzyme is relative low. A. fumigatus Q23L phytase resulted in a remarkable increase in specific activity around pH4.5 - 7.0, but the pH stability of Q23L was lower than A. fumigatus wild-type phytase. To increase the pH stability of Q23L, the mutant Q23LG272E was constructed by site-directed mutagenesis with PCR. The gene of A. fumigatus wild-type phytase and the mutant genes encoding the Q23LG272E and the Q23L were correctly expressed in Pichia pastoris GS115. Enzymes were purified and their enzymatic properties were determined. The results revealed that the specific activity of the Q23L improved remarkably, which increased from 51 u/mg of the wild type to 109 u/mg at pH5.5. Meanwhile, the pH stability of Q23L, decreased evidently, especially from pH3.0 to pH4.0.The pH stability of Q23LG272E in pH3.0 - 4.5 and pH6.5 - 7.0 has been improved compared with Q23L. The specific activity of Q23LG272E basically maintained at the level of Q23L. Analysis of 3-D structure and sequence similarity were used to reveal the presumable factors influencing the enzymatic properties of Q23LG272E, and discussion for the relationship between structure and function of phytase was given.
6-Phytase ; chemistry ; genetics ; metabolism ; Amino Acid Substitution ; Aspergillus fumigatus ; enzymology ; genetics ; Biocatalysis ; Electrophoresis, Polyacrylamide Gel ; Fungal Proteins ; chemistry ; genetics ; metabolism ; Hydrogen-Ion Concentration ; Models, Molecular ; Mutagenesis, Site-Directed ; Mutant Proteins ; genetics ; metabolism ; Mutation ; Pichia ; genetics ; Polymerase Chain Reaction ; Protein Conformation ; Protein Engineering ; methods ; Recombinant Proteins ; metabolism ; Structure-Activity Relationship ; Substrate Specificity

BACKGROUNDSafe placement of the screws is a critical aspect of trans-pedicle internal fixation, and little information on in vivo morphology of the cervical vertebrae pedicle measured with imaging methods is available. The aim of this study was to measure the dimensions of cervical vertebrae C3 to C7 and provide screw length, screw diameter and tilt angle for clinical cervical vertebra trans-pedicle internal fixation.

METHODSThirty Chinese men and women underwent high-speed spiral computed tomography measurements to obtain data for C3 to C7, and the morphology of the cervical vertebra pedicles was reconstructed.

RESULTSReconstructed computer tomography image data revealed that: (1) pedicle sponge width increased incrementally from C3 to C7, (2) pedicle depth was similar for C3 to C7, (3) pedicle angle decreased incrementally from 47.20° to 33.76° for C3 to C7, and (4) pedicle point to midline distance was similar for C3 to C7. There were no statistical differences in morphological data between the right and the left side. Men had statistically larger values than women for all morphological parameters.

CONCLUSIONSReconstructed computed tomography images can provide useful data for clinical cervical vertebra trans-pedicle internal fixation. The individual measurement of cervical vertebra pedicles is recommended for safe placement of trans-vertebra pedicle screws.

Adult ; Bone Screws ; Cervical Vertebrae ; diagnostic imaging ; surgery ; Female ; Humans ; Image Processing, Computer-Assisted ; Internal Fixators ; Male ; Middle Aged ; Tomography, X-Ray Computed ; methods ; Young Adult

Purpose Analysis of correlation between FOXM1 gene expression levels and clinicopathological features and prognosis of patients with esophageal squamous cancer (ESC). The effect of down-regulation of FOXM1 expression on the proliferation of human ESC cell line KYSE-30 was also inves-tigated. Methods Quantitative real-time PCR (qRT-PCR) and immunohistochemistry ( IHC) methods were used to detect the expression of FOXM1 in ESC tissues and non-cancer tissues in mRNA and protein level. The expression of FOXM1 was down-regulated by RNA interference (RNAi) technique, and the pro-liferation activity of KYSE-30 cells was detected by CCK-8 as-say. Results Compared with the corresponding non-cancer tis-sues, the expression of FOXM1 was significant higher in ESC tis-sues(P＜0. 01). Meanwhile, the expression levels of FOXM1 in poorly differentiated esophageal carcinoma was higher than that in well-differentiated ESC group ( P ＜0. 01 ). The expression of FOXM1 was significantly correlated with poor tumor differentia-tion (P＜0. 001), lymphatic metastasis (P=0. 000), advanced stage (P=0. 004) of ESC patients after surgical resection. High FOXM1 expression was related to shorter overall survival ( OS) (P＜0. 001). After down-regulating FOXM1 expression in KYSE-30 cells, cell proliferation rate was inhibited (P＜0. 01). Conclusion FOXM1 expression is up-regulated in ESC and is closely related to the degree of differentiation, lymph node me-tastasis, clinical stage and prognosis of ESC. FOXM1 may be participated in regulating the proliferation of human esophageal carcinoma cell line KYSE-30.