Objective To investigate the effects and safety of sequential treatments with methotrexate and mifepristone for ectopic pregnancy with fetal cardiac activity.Methods 4 cases of ectopic pregnancy with fetal car- diac activity in our hospital were given by sequential therapy with methotrexate and mifepristone.Serum?-HCG,liv- er function and renal function,blood routine and gastrointestinal response were observed.Results 4 cases of ectopic pregnancy with fetal cardiac activity with 1～4 periods of sequential treatments were cured.Except light gastroin- testinal response,and one had slight rise of serum ALT level and AST level,no one had rnyelosuppression and heavy hepatic injury.Conclusion The sequential therapy with methotrexate and mifepristone is an effective and safe method for the treatment to ectopic pregnancy with fetal cardiac activity.

OBJECTIVE: To investigate the genetic polymorphisms of 19 STR Loci in Shandong Han population in order to provide the genetic data for paternity testing. METHODS: The genotypes of 205 unrelated individuals in Shandong Han population were typed by Goldeneye 20A kit to get the allele frequencies and population genetic parameters of 19 STR loci. Four kits, Identifiler kit, SinoFiler kit, PowerPlex 16 kit, and Goldeneye 20A kit, were compared with each other and used in the analysis of a special paternity test case. RESULTS: The population genetic parameters of 19 STR loci in Shandong Han Population were obtained. The cumulative discrimination power (CDP) and cumulative probability of exclusion (CPE) ranked from high to low were Goldeneye 20A kit, SinoFiler kit, PowerPlex 16 kit and Identifiler kit, respectively. As duo case, the result of the real case showed that Identifiler kit had no excluding loci, and none of the SinoFiler kit, PowerPlex 16 kit or Goldeneye 20A kit could exclude fatherhood. CONCLUSION Compared with Identifiler kit, SinoFiler kit, and PowerPlex 16 kit, Goldeneye 20A kit shows the higher efficiency than the others, but is not completely satisfied for duo cases.
Asian People/genetics* ; China ; Forensic Genetics/methods* ; Gene Frequency ; Genetic Loci/genetics* ; Genetics, Population ; Genotype ; Humans ; Male ; Microsatellite Repeats ; Paternity ; Polymorphism, Genetic/genetics*

Aim To explore the pharmacological mechanism of arsenic trioxide (ATO) on endoplasmic reticulum(ER) stress and provide indirect pharmacological indicators for the therapeutic drugs monitoring of acute promyelocytic leukemia.Methods The ATO toxicology database was utilized to associate gene data and establish protein-protein interaction networks.MCODE algorithm was used to analyze clustering of network topology relationship in order to find the critical functional gene group.The HL-60 cells were used as the model in this study.The cytotoxicity of ATO to HL-60 was evaluated by MTT assay.Real-time PCR assay was involved in detecting the expression of stress-related genes in ER stress.Western blot was used to detect the expression of stress-related proteins in ER stress.ER-specific staining was conducted by ER-Tracker Red.Cell differentiation and apoptosis was tested by flow cytometry.Results 206 ATO-related genes had 3 794 pairs of relationships,and ER stress-related module was outstanding among the top 4 gene cluster.ATO inhibited HL-60 cell proliferation in a dose-dependent manner;4 h after administration ATO could induce ER stress.The expressions of GRP78 and GRP94 were significant and the gene expression level changed greatly over time.The expression level of GRP78,GRP94 and Nrf2 was induced by 1 ～4 μmol · L-1 ATO,and the expression of CHOP was significant by 8 μmol · L-1 ATO.ATO could induce the phosphorylation level of eIF2α protein at 1 ～2 μmol · L-1 as well as a large expression of CHOP protein markedly at 8 μmol · L-1.As shown in ER-specific staining,ATO at 4,8 μmol · L-1 induced ER swelling.Flow cytometry showed that ATO could induce cell differentiation at 1 μmol · L-1,and the differentiation group was obvious at 2 μmol · L-1.So as to the concentration of 4 and 8 μmol · L-1,but the apoptotic group emerged at 8 μmol · L-1.Conclusion ATO can inhibit the proliferation of HL-60 and in this process,ER stress is involved,which shows a concentration-dependent phaseswitching effect.

To obtain ginsenoside Rg1 molecularly imprinted polymer (MIP) separating materials with high selectivity, enrichment and adsorption performance through directional separation of ginsenoside Rg1 and analogues. In this study, MIPs were respectively prepared by precipitation polymerization and surface imprinted polymerization. Their adsorption performances were compared. The results showed that ginsenoside Rg1 MIPs prepared by the above two methods had a high adsorption performance to template molecules, with the maximum apparent adsorbing capacity of up to 27.74, 46. 80 mg x g(-1), respectively. Moreover, MIPs prepared by surface imprinted polymerization showed higher adsorption capacity than that by precipitation polymerization. The experimental results indicated that as for ginsenoside Rg1 with higher polarity, MIPs prepared by surface imprinted polymerization showed higher selectivity and adsorption performance, which provides provide important reference for preparing imprinted polymers with good adsorption performance with active molecules with strong polarity.
Adsorption ; Chemical Fractionation ; methods ; Chemical Precipitation ; Ginsenosides ; chemistry ; isolation & purification ; Molecular Imprinting ; Polymerization ; Polymers ; chemical synthesis

OBJECTIVE: To investigate the position change of the fibular bone after maxillary reconstruction by free fibular flap and to analyze the factors affecting the position change. METHODS: Patients who underwent maxillary reconstruction by free fibular flap in the Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology from November 2012 to November 2016 were enrolled in this study. CT scans 1 week and 1 year postoperatively were collected and stored in DICOM format. The ProPlan CMF software was used to reconstruct the CT scans and separate the maxilla and each segment of the fibular flap. The Geomagic Control software was used to measure the long axis direction vector of each fibular segment. And the position change direction was recorded. The patients were divided into groups according to the use of the fibula or titanium plate to reconstruct the zygomaticmaxillary buttress. RESULTS: A total of 32 patients were enrolled. Among them, 21 were in the titanium plate group and 11 in the fibula bone group. The angle between the long axis of the fibular segment and the X axis in the X-Y plane was 95.65°±53.49° and 95.53°±52.77°, 1 week and 1 year postoperatively, and there was no statistical difference (P>0.05). The angle between the long axis of the fibular segment and the X axis in the X-Z plane was 96.88°±69.76° and 95.33°±67.42°, respectively, with statistical difference (P=0.0497). The angular changes of the long axis of the fibular segment in the titanium plate group and the fibular bone group were 3.23°±3.93° and 1.94°±1.78°, respectively, and the angular changes in the X-Z plane were 6.02°±9.89° and 3.27°±2.31°, respectively. There was no significant difference between the groups (P>0.05). The long axis changes of the fibular segment in the X-Y plane for reconstruction of the anterior alveolar, posterior alveolar, and buttress were 3.13°±3.78°, 2.56°±3.17°, and 5.51°±4.39°, respectively. There was a statistical difference (P = 0.023) between the posterior and buttress. In the X-Z plane, theses were 4.94°±4.75°, 5.26°±10.25°, 6.69°±6.52°, respectively. There was no statistical difference among the three groups (P>0.05). The main positional deviation directions of the titanium plate group and the fibular bone group were interior and superior sides, and there was no statistical difference between the two groups (P>0.05). CONCLUSION One year postoperatively, the position of the free fibular flap was changed compared with 1 week postoperatively. The position of the free fibular flap was mainly changed to the interior and superior sides.
Bone Transplantation ; Fibula/diagnostic imaging* ; Free Tissue Flaps ; Humans ; Mandibular Reconstruction ; Maxilla/surgery*

Selectable marker genes that usually encode antibiotic or herbicide resistances are widely used for the selection of the transgenic plants, but they become unnecessary and undesirable after transformation selection. An important strategy to improve the transgenic plants' biosafety is to eliminate the marker genes after successful selection. In the FLP/frt site-specific system of the 2 microm plasmid of Saccharomyces cerevisiae, the FLP enzyme efficiently catalyzes recombination between two directly repeated FLP recombination target (frt) sites, eliminating the sequence between them. By controlled expression of the FLP recombinase and specific allocation of the frt sites within transgenic constructs, the system can be applied to eliminate the marker genes after selection. Through a series of procedures, the plant FLP/frt site-specific recombination system was constructed, which included the frt containing vector pCAMBIA1300-betA-frt-als-frt and the FLP expression vector pCAMBIA1300-hsp-FLP-hpt. The FLP recombinase gene was introduced into transgenic (betA-frt-als-frt) tobacco plants by re-transformation. In re-transgenic plants, after heat shock treatment, the marker gene als flanked by two identical orientation frt sites could be excised by the inducible expression of FLP recombinase under the control of hsp promoter. Excision of the als gene was found in 41% re-transgenic tobacco plants, which indicated that this systerm could make a great contribution to obtain the marker free transgenic plants.
Base Sequence ; DNA Nucleotidyltransferases ; metabolism ; Molecular Sequence Data ; Plants, Genetically Modified ; genetics ; Polymerase Chain Reaction ; Promoter Regions, Genetic ; Recombination, Genetic ; Tobacco ; genetics

The chromatographic fingerprint was established by eluting with the mobile phase consisted of acetonitrile and 0.2% formic acid water on an Agilent TC-C18 (2) column (4.6 mm x 250 mm, 5 microm). Six chromatographic peaks were identified by HPLC-MS/MS method. Ten batches of Glycyrrhizea Radix et Rhizoma Praeparata Cum Melle were determined, and the similarity was arranged from 0.72 to 0.99. Good precision, stability and repeatability were obtained, and this study provides a reference for the quality control of Glycyrrhizea Radix et Rhizoma Praeparata Cum Melle.
China ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; chemistry ; Glycyrrhiza uralensis ; chemistry ; Mass Spectrometry ; Quality Control ; Rhizome ; chemistry

Objective To explore the changes of serum gastrin(GAS),plasma motilin(MTL) and somatostatin(SST) in critically ill children with gastrointestinal dysfunction(GID).Methods According to pediatric critical illness score,75 cases were divided into greatly critical group(score90).Fifty cases of greatly critical and critical group were divided into GID group and non-GID group.The levels of serum GAS,plasma MTL and SST were detected on an empty stomach at acute stage and convalescence stage,comparing with those of normal control group,and then,the relationship between the levels of serum GAS,plasma MTL,SST and GID,the severity of disease were analyzed.Results At acute stage,the levels of serum GAS and plasma MTL of greatly critical group and critical group were higher than those of normal control group,the levels of plasma SST of greatly critical group and critical group were lower than that of normal control group,the more severe condition of critical children,the higher level of serum GAS and plasma MTL,the lower level of plasma SST.At convalescence stage,the level of serum GAS and plasma MTL of the greatly critical group and critical group decreased and the level of plasma SST increased.The levels of serum GAS and plasma MTL of GID group were higher than those of non-GID group,but the level of plasma SST of GID group was lower than that of non-GID group.Conclusion The level of serum GAS,plasma MTL and SST can be used to assess the severity of illness and prognosis,judge the change of disease and determine the efficacy of treatment programs,and detect gastrointestinal functional lesion.

Objective To determine the extent and distribution of error in knee joint proprioception and e- valuate the relationship between knee joint proprioception and pain and dysfunction.Methods Twenty-eight knee OA patients (19 female and 9 male) were compared with 27 age-matched healthy adults (20 female and 7 male). Knee joint proprioception was measured with a repositioning test on the Biodex dynamometer.The pain and knee dys- function were assessed with Visual Analogue Scale and Lequesne Index,respectively.Results Knee OA patients produced 79% more proprioception errors than the healthy subjects (P