SCHWABE Company in German is the first and largest manufacturer of Ginkgo biloba preparation. The company not only has leading technology in this field, but also protects its own market effectively through the high quality of patent drafting and exactly patent layout. Based on multi-angle analysis for patent portfolio of G. biloba preparation at application time, legal status, globally layout, Chinese layout, the article provides technical reference of research and development of G. biloba, also provides valuable experience of traditonal Chinese medicine patent portfolio layout for Chinese enterprises.
Drug Industry ; economics ; legislation & jurisprudence ; trends ; Ginkgo biloba ; chemistry ; Humans ; Patents as Topic ; legislation & jurisprudence ; Phytotherapy ; economics ; trends ; Plant Preparations ; isolation & purification ; Technology, Pharmaceutical ; economics ; trends

SMART-RACE was performed after isolating the total RNA of Armillariella tabescens to amplify the full-length cDNA of arabinosidase (GenBank Accession No. AJ620046). Bioinformatics analysis was used to analyze the code frame of arabinosidase, to predict its structure and function. Recombinant plasmid pPIC9-AF was constructed and then electroporated into methylotrophic yeast Pichia pastoris GS115. The secreted 6 ? His fusion protein was purified to analyze its enzymology property. This arabinosidase had high activity at 30-35℃ under acid condition, and was stable within wide range of pH and temperature. It maintained about 80% activity at the range of pH4. 0-8.0 and 20-40℃,wider than many other cloned arabinosidase. So it was worthy to go step further to study this enzyme, and recombinant expression provided a chance of highly expressing arabinosidase.

Objective To observe Meissner's corpuscles in prepuces of different shapes and ages. Methods The Meissner's corpuscles were detected with immunohistochemical stain in 204 prepuce sam- ples of different shapes and ages (3-59 years),and the density of Meissner's corpuscles in every sample was obtained as well.The difference of Meissner's corpuscle densities between phimosis and redundant pre- puce,and correlation between Meissner's corpuscle densities and ages were analyzed with Chi-square test and linear regression,respectively.Results The density of Meissner's corpuscles in redundant prepuce has begun to increase since infancy and reached the peak at the age about 15 years.No significant difference in densities of Meissner's corpuscles between phimosis and redundant prepuce was observed till the age of 20 years,and then there was a trend of disappearance of Meissner's corpuscles in redundant prepuce.A signifi- cantly negative correlation between the densities of Meissner's corpuscles and ages was revealed in redundant prepuce (r=-0.236,P=0.009),whereas an insignificantly positive correlation between the densities of Meissner's corpuscles and ages was shown in phimosis (r=0.193,P=0.084).Conclusions The den- sities of Meissner's corpuscles in redundant prepuce develop synchronically with genital differentiation and accord with the status of sexual function in adult males.The persistent high level of Meissner's corpuscles in adult phimosis might be a mechanism of physiological compensation.

ObjectiveTo observe the effect of cognitive therapy and acupuncture on insomnia. Methods72 insomnia sufferers were divided into two groups averagely. 36 sufferers were treated with cognitive therapy and acupuncture (treatment group), and other 36 sufferers were treated with acupuncture (control group) only.ResultsA month after treatment, ,15 sufferers were cured, 18 sufferers were obviously improved, 2 sufferers were improved and one did not show any improvement in the treatment group.Otherwise, 6 sufferers were cured, 12 sufferers were obviously improved, 12 sufferers were improved and 6 did not show any improvement in the control group. (P<0.05)ConclusionCognitive therapy and acupuncture used together shows more efficacy on insomnia compared with acupuncture alone.

OBJECTIVETo investigate the effect of sFRP2 on the biological behavior of human hepatoma carcinoma HepG2 cells.

METHODSHepG2 cells were infected with recombinant adenovirus containing mouse sFRP2 gene, and then the proliferation, cell cycle distribution, expression of tumor metastasis related factors (CD44, CD82/KAI1, EMMPRIN) and beta-catenin protein, and migration ability of the cells were detected by MTT, FCM, immunohistochemistry, Western blot and Transwell inserts, respectively.

RESULTSsFRP2 protein inhibited the proliferation of HepG2 cells, and increased the percentage of G0/G1 period cells. Expression of CD44 and CD82/KAI1 proteins, which could inhibit invasion and metastasis of tumor cells, was upregulated. However, EMMPRIN protein, which could promote the above properties of tumor cells decreased in HepG2 cells infected with the recombinant adenovirus containing mouse sFRP-2 gene. Western blot demonstrated that beta-catenin was expressed in HepG2 cells and there was no significant difference between the treated and the control groups. Transwell insert test showed sFRP2 protein decreased the migration ability of HepG2 cells.

CONCLUSIONThe recombinant adenovirus containing mouse sFRP-2 gene could infect HepG2 cells. sFRP2 protein could significantly reduce the capability of proliferation, invasion and metastasis of HepG2 cells.

Adenoviridae ; Animals ; Cell Proliferation ; Hep G2 Cells ; Humans ; Liver Neoplasms ; metabolism ; pathology ; Membrane Proteins ; genetics ; Mice ; Neoplasm Invasiveness ; Neoplasm Metastasis ; Transfection ; beta Catenin ; metabolism

Objective To investigate the clinical significance of serum cytokines concentrations and A- PACHE scores in evaluating the illness state for critical trauma patients.Methods A clinical prospective self-control trial was performed,in which 36 patients admitted to ICU by SIRS were enrolled.Objects were divided into mild and severe trauma group according to APACHE score.The TNF-?and IL-6 concentrations were determined on the 1st, 3rd and 5th day of admission,the APACHE score were assessed at the same time.Statistic analysis was performed according to this group.Results The TNF-?concentrations decreased continuously in the following days while IL-6 decreased from the 7th day in the mild trauma group.In the severe trauma group the TNF-?and IL-6,APACHE score concentrations kept increasing.There was a significant difference of TNF-?and IL-6 concentrations between severe trauma and mild trauma group.Conclusion Dynamic measurement of TNF-?and IL-6 concentrations with APACHE score provide great help to evaluate the illness state and predict the prognosis.

Biosafety hazard has been paid high attention with increasing use of animal species and quantities in medical colleges. In the present paper, we analyze potential biosafety risks in medical colleges from characteristics of biosafety environment, experiment activity, zoonosis, laboratory animal management, etc. , then give some advices on prevention and control of biosafety hazards.

We have observed earlier that testosterone at physiological concentrations can stimulate tissue factor pathway inhibitor (TFPI) gene expression through the androgen receptor in endothelial cells. This study further investigated the impact of testosterone on TFPI levels in response to inflammatory cytokine tumor necrosis factor-alpha (TNF-alpha). Cultured human umbilical vein endothelial cells were incubated in the presence or absence of testosterone or TNF-alpha. TFPI protein and mRNA levels were assessed by enzyme-linked immunosorbent assay and quantitative real-time reverse transcription polymerase chain reaction. To study the cellular mechanism of testosterone's action, nuclear factor-kappa B (NF-kappaB) translocation was confirmed by electrophoretic mobility shift assays. We found that after NF-kappaB was activated by TNF-alpha, TFPI protein levels declined significantly by 37.3% compared with controls (P < 0.001), and the mRNA levels of TFPI also decreased greatly (P < 0.001). A concentration of 30 nmol L(-1) testosterone increased the secretion of TFPI compared with the TNF-alpha-treated group. NF-kappaB DNA-binding activity was significantly suppressed by testosterone (P < 0.05). This suggests that physiological testosterone concentrations may exert their antithrombotic effects on TFPI expression during inflammation by downregulating NF-kappaB activity.
Androgens ; pharmacology ; Cells, Cultured ; Down-Regulation ; drug effects ; Drug Combinations ; Endothelium, Vascular ; drug effects ; metabolism ; Humans ; Infant, Newborn ; Lipoproteins ; genetics ; metabolism ; NF-kappa B p50 Subunit ; antagonists & inhibitors ; genetics ; RNA, Messenger ; metabolism ; Testosterone ; pharmacology ; Tumor Necrosis Factor-alpha ; pharmacology

OBJECTIVETo examine the genetic polymorphisms in the promoter region of cyclooxygenase-2 ( COX-2) and evaluate their association with the risk of gastric cancer.

METHODSSingle-strand conformational polymorphism and DNA sequencing were used to screen the genetic variants of the COX-2 promoter region. Total 323 patients with gastric cancer and 646 frequency-matched controls were genotyped by polymerase chain reaction-restriction fragment length polymorphism method. Odds ratios (OR) and 95% confidence intervals (CI) were estimated by logistic regression. Haplotype frequency was estimated using Haplo. stat software.

RESULTSThree single nucleotide polymorphisms, including - 1290A > G, -1195G > A, and -765G > C were identified in the promoter of COX- 2. Case-control analysis showed an increased risk of developing gastric cancer for the -1290AG (OR 1.64; 95% CI 1.03-2.61), -1195AA (OR 2.68; 95% CI 1.65-4.33), and -765CG (OR 2.66; 95% CI 1.53-4.64) genotype carriers, respectively, compared with noncarriers. A greater risk of developing gastric cancer was observed for the A(-1290) -A(-1195) -C(-765) haplotype compared with the A(-1290) -G(-1195) -G(-765) haplotypes (OR 11.80; 95% CI 2.43-57.25).

CONCLUSIONGenetic polymorphisms in COX-2 promoter region may play a role in gastric carcinogenesis.

Adult ; Aged ; Cyclooxygenase 2 ; genetics ; Female ; Genetic Predisposition to Disease ; Haplotypes ; Humans ; Male ; Middle Aged ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Polymorphism, Single Nucleotide ; Promoter Regions, Genetic ; genetics ; Risk ; Stomach Neoplasms ; enzymology ; genetics

In order to reveal the cause of disease occurred in the process of Coptis chinensis growth, this paper studied the bacterial species diversity index of different aged rhizospheric and non-rhizospheric soil planting normal or sick C. chinensis by using PCR-DGGE technique. The representative DGGE bands were chosen to be cloned, and sequenced, the phylogeny were constructed. The results showed that the bacterial communities were very different between the normal and diseased soil samples of C. chinensis, and the diversity index (H) of diseased soil samples were higher than that of normal soil samples. Sequencing analysis of representative cloned DGGE bands showed that the unculturable bacteria were the dominant groups, and bacteria belonged to genus Bacillus, Acidovorax, Acinetobacter, uncultured Kluyvera, and uncultured Comamonas were also existing, but the reported plant pathogenic bacteria were not found in the C. chinensis planting soil. The density and brightness of clone band d in diseased soil samples was higher than that in normal soil sample, and sequencing analysis showed that it belonged to genus Acidovorax. Obviously, during the process of C. chinensis growth, the rhizospheric bacteria population changed, and the quantity of bacteria belong Acidovorax increased, which probably resulted in the disease occurred during C. chinensis growth.
Bacteria ; classification ; genetics ; isolation & purification ; Biodiversity ; Coptis ; growth & development ; microbiology ; Denaturing Gradient Gel Electrophoresis ; Molecular Sequence Data ; Phylogeny ; Polymerase Chain Reaction ; Rhizosphere ; Soil Microbiology