Objective To study the relationship between the expression of telomerase activity in human gastric cancer and the development of gastic cancer.Methods Telomerase activity in 45 samples from primary gastric cancer and 40 samples of "normal" gastric tissues was examined using in situ hybridization technique.Results Telomerase activity was positive in 38 of 45 gastric cancer tissues.Telomerase positive expression in advanced stage gastric cancer was 93 3%,which was significiantly higher than that in early stage(66 6%)(P

Objective: To confirm the optimum ingredient of the filler in Weiling Capsules (Rhizoma Coptidis, Fructus Evodiae, Fructus Toosendan and Radix et Rhizoma Rhei. Methods: The dissolution of berberine in weiling capsules of four different prescriptions were determined. Results: The T 50 , T d and m of the capsules of whole extraction, extraction which contains 1/4 raw drugs were significantly different from that containing 1/2 raw drugs ( P 0.05), and there is no significant difference between them ( P

Objective To observe the therapeutical effect by using pedicle screw and interbody fusion cage,and compare with posterior interbody simple autogenous bone graft. Methods From August 2006 to January 2009,46 cases of lumbar spondylolisthesis patients were treated by using pedical screw internal fixation system, including 24 cases of cage-graft (group A), 22 cases of interbody simple autogenous bone graft (group B), efficacy evaluation using JOA evaluation standard, and measured lumbar olisthe reset rate, relative intervertebral space height and lumbosacral angle of recovery and observed fusion rate through the preoperative and postoperative follow-up X-ray films. Results All the patients' waist pain symptoms relieved after operative reduction. At 18 months of follow-up , group A of lumbar olisthe reset rate was 94.7%, relative intervertebral space height was (74.93 ± 7.85)% ,lumhosacral angle was 36.6° ± 3.6° ,meanwhile group B was 89.9%, (68.72 ± 12.40)%,39.3°± 5.6°. There were significant differences between two groups (P<0.05). Bone graft fusion rate in group A was 95.83% (23/24), in group B was 90.91%(20/22), there was significant difference between two groups (P < 0.05). Conclusion Pedicle screw system and interbody cage-graft in treatnent of lumber spondylolisthesis can effectively prevent the loss of reduction,mid and long-term effects are satisfactory,it is a stable and reliable method.

To investigate effects of cultured astrocytes from Sprague Dawley rat cerebral cortex on the development of PC12 cellsderived from rat pheochromocytoma, PC12 cells were cocultured with astrocyte according to different astrocytes/neurons ratio(50:1～1:1) , or with serum-free conditioned medium of astrocytes(ACM). The vitality of PC12 cells was measured by sensi-tive MTT method and their morphologic features were observed by Olympus light microscope. The results showed: (1) WhenPC12 cells were cultured with ACM, compared with the control group, the vitality of PC12 cells was increased significantly (0.255+0. 012 vs 0. 510±0. 036, P<0. 001) and the morphological changes were not obvious in the experimental group. (2) WhenPC12 cells were cocultured with astrocyte in the ratio of 30: 1～1: 1, not only was the vitality of PC12 cells enhanced, but alsothe neurite-outgrowth of PC12 was observed. (3) When PC12 cells were cocuhured with astrocyte in proportion of 50: 10～40 : 1, the vitality of PC12 cells was also enhanced, but the neurite-outgrowth of PC12 was not found. This study suggested en-hancement of PC12 cell-vitality was mediated by soluble factors produced by astrocytes, while activity of the neurite-promotingwas associated with cell-cell contact and with the ratio of two cells.

Objective: To optimize the preparation technique for bifonazole suppositories and evaluate the quality.Methods: The appearance, hardness and melting time of suppositories were used as the evaluation indices to optimize the process conditions, such as suppository matrix, drug particle size, injection molding temperature and stirring conditions, etc.The content of bifonazole was determined by HPLC.Results: The best formula was as follows: the matrix was multiplicated monofatty glyceride-36, bifonazole was sieved by 100 mesh sieve and the best molding temperature was 45 ℃.The quality of the prepared suppositories with the above conditions was controllable in the appearance, melting time limit, hardness and content determination, etc.Conclusion: The formula of bifonazole suppositories is reasonable, the preparation process is feasible, and the quality control methods are reliable.

Objective:To set up the HPLC fingerprints of Scutellaria baicalensis collected from different regions and develop a HPLC method for the quantitative analysis of the chief Flavonoids in Scutellaria baicalensis.Methods:The HPLC separation was performed on SHIMADZU VP-ODS column(250mm?4.6mm,5?m),gradient eluted using 0.1% citric acid-acetonitrile solvent system and detected at 276nm and 200nm to 400nm with a DAD detector.The flow rate was 1.0ml/min.The fingerprints of different samples were compared with similarity evaluation software.Results The HPLC fingerprints of Scutellaria baicalensis was set up,in the fingerprints,17common peaks of flavonoids were confi rmed.But the contents of the chief Flavonoids had a big difference,in which the baicalin had the biggest content(18.32%) in cottage Scutellaria baicalensis of Yiyuan County;the baicalein and wogonin had the biggest content(2.31%&0.73%) in wild Scutellaria baicalensis of Northeastern China.Conclusion:This method showed high precision,good repeatability,stability and all of the content were separated well,so it can be useful as the means to assess the quality of Scutellaria baicalensis.

OBJECTIVE:To optimize the technology of supercritical CO2 extraction from Zingiberis rhizoma. METHODS:With the comprehensive score of the contents of 6-ginger phenol,8-ginger phenol and 10-ginger phenol and the extraction rate of the oil from Z. rhizoma as the index,uniform design method was adopted to investigate the effects of extraction pressure,extrac-tion temperature and extraction duration on the extraction result;verification tests were conducted. RESULTS:The optimal condi-tions were as follows as the extraction pressure of 25 MPa,extraction temperature of 30 ℃ and extraction duration of 2 h. In the verification tests,the average extraction rate of the oil from Z. rhizoma was 3.2%(n=3),and the comprehensive score was 1.874 2 (RSD=0.65%,n=3),with the relative deviation of 0.6% between the measured value and the predicted value. CONCLUSIONS:The optimal extraction technology is stable and feasible,with the advantages of low temperature,short duration.

Objective To optimize the formulation and process of liposome gel of total alkaloids of Sophoras Flavescentis Radix; To prepare the liposome gel of total alkaloids of Sophoras Flavescentis Radix and study its release mechanism.Methods Matrine liposomes was prepared by using film dispersion method; With entrapment efficiency and medicine loading as indexes, acid dye colorimetric method was used for the determination of matrine content in liposomes. Orthogonal design was used to optimize the formulation and the optimal formulation of liposomes was selected. Poloxamer-407 was set as the substrate preparation of matrine liposome gel. The transdermal rate of medicine gel and medicine liposome gel was investigated.Results Obtained through formulation and technology optimization of liposomes formation uniform, particle size was in the range of 100 nm to 400 nm, entrapment 74%, loading 26%. Preparation of liposome gel was transparent semisolid. In vitro results showed, cumulative release dose of matrine hydrogel was 6.34 mg/cm2 within 48 h; cumulative release doses of liposome gel of total alkaloids of Sophoras Flavescentis Radix was 6.97 mg/cm2 within 48 h; cumulative volume, steady-state penetration rate through skin and 48 h volume in the skin of the latter were significantly improved compared with that of the former. Conclusion Optimum preparation is reliable and practical. Liposome gel of total alkaloids of Sophoras Flavescentis Radix made by the preparation is with high quality, which can effectively delay the medicine release rate, increase the volume of medicine in human body.

OBJECTIVE:To establish the quality standard for Gentiana scabra dispensing granule. METHODS:TLC was ad-opted to identify G. scabra in the preparation;HPLC was adopted to determine the content of gentiopicroside in the preparation:the column was Dionex C18 with mobile phase of methanol- water(25∶75,V/V)at a flow rate of 1.0 ml/min,the detection wave-length was 270 nm,column temperature was 30 ℃,the injection volume was 10 μl. RESULTS:TLC showed clear spots and good separation. The linear range of gentiopicroside injection volume was 0.302 6-3.026 μg (r=0.999 9);RSDs of precision,stability and reproducibility tests were lower than 2%;recovery was 98.27%-99.56%(RSD=0.68%,n=6). CONCLUSIONS:The estab-lished standard can be used for the quality control of Gentiana scabra dispensing granule.

OBJECTIVE: To explore the laboratory phenotype and molecular pathogenesis in a Chinese pedigree affected with Hereditary coagulation factor Ⅻ (FⅫ) deficiency. METHODS: A male proband admitted to Ningbo No.2 Hospital on July 17, 2021 due to chronic gastritis and members of his pedigree (7 individuals from three generations) were selected as the study subjects. Prothrombin time (PT), activated partial thromboplastin time (APTT), FⅧ activity (FⅧ: C), FⅨ activity (FⅨ: C), FⅪ activity (FⅪ: C), FⅫ activity (FⅫ: C), and FⅫ antigen (FⅫ: Ag) were determined. All of the exons, exon-intronic boundaries, as well as the 5'- and 3'-untranslated regions of the F12 gene were subjected to Sanger sequencing. Candidate variants were verified by cloning sequencing. The effect of candidate variants on the protein function was analyzed by bioinformatics software. RESULTS: The proband, a 47-year-old male, had significantly prolonged APTT (180.0 s) and decreased FⅫ:C and FⅫ:Ag levels (< 1%). His father, mother, brother and two sons also showed certain degrees of reduction. Genetic testing revealed that the proband has harbored compound heterozygous variants of the F12 gene, namely c.1092_1093insC (p.Lys365Glnfs*69) in exon 10 and c.1792_1796delGTCTA (p.Val579Hisfs*32) in exon 14. His mother and elder son were heterozygous for the c.1092_1093ins variant, whilst his father, brother, and younger son were heterozygous for the c.1792_1796delGTCTA variant. Analysis of the promoter region of exon 1 also showed that the proband and both sons had harbored a 46T/T polymorphism, whilst other family members were 46C/T. Bioinformatic analysis suggested that the p.Val579 is a highly conserved site. Protein model analysis showed that, with the p.Val579Hisfs*32 variant, a benzene ring was added and the hydrogen bond of surrounding amino acids was changed. Based on the guidelines from the American College of Medical Genetics and Genomics, the c.1792_1796delGTCTA was classified as a pathogenic variant (PVS1+PM2_Supporting+PM4). CONCLUSION The c.1092_1093insC (p.Lys365Glnfs*69) and c.1792_1796delGTCTA (p.Val579Hisfs*32) compound heterozygous variants of the F12 gene probably underlay the decreased FXII levels in this pedigree. Above finding has also enriched the mutational spectrum for FⅫ deficiency.
Male ; Humans ; Aged ; Middle Aged ; Pedigree ; East Asian People ; Exons ; Introns ; Family ; Factor XII Deficiency/genetics* ; 3' Untranslated Regions ; Factor XII/genetics*