According to Traditional Chinese Medicine, the functional structure of human body is composed of five functional subsystems which are based on the five-organs concept, and the relationship between them could be expatiated with Wu-Xing (Five-Elements) theory. Wu-Xing system is taken as our research object. The dynamic model has the characteristic of self-organization. There is only one stable point with local stability in the five-dimensional space. There exists an instability domain in the five-dimensional space. The stability domain is unbounded; it contains some special subdomains, including rectilineal subdomains, ray subdomains and line subdomains. In some ray subdomains, there exists comeback summits, the peak value of the comeback summit is comeback threshold. The existence of the comeback threshold means that, if the human body wants to go back to the healthy state from a certain special state which corresponded to the initial conditions located in a domain with comeback summit, it has to get across the comeback threshold. The comeback threshold is the division of the healthy state and the sub-healthy state. Some research work is done to investigate the response of the Wu-Xing dynamic model to the impact stimulation, and results in the decrease of the system's comeback threshold. There are 3 manners to achieve this goal, and they tally with the principle of the Wu-Xing system and the experimental rules in clinic.

Objective To investigate the parameter of technical shaping process of Muxiang Shunqi Wan and select appropriate auxiliary materials to enhance the time limit of dissolution. Method Select parameter of technical shaping process by orthogonal test and choose the best dosage of disintegrant by well-proportioned design. Results The best preparation and technical shaping process of Muxiang Shunqi Wan is as follows:the drug powder is refined with CMS-Na 1.4%, CCNa 0.5%, 60 ℃ dry. Conclusion Pills made by this technical process appear round and smooth, the colour and luster are equal and conformable, the dissolving time limit is short and the quality is good, therefore, they are up to the GMP requirements.

Along with the development of modern biological technology, the adversity of the transgenic products has aroused increasing attention. The origin of biosafety issues, the safety of genetically modified organisms and its impact on the ecological environment and human health were introduced in this paper. Here, the safety issues of the leakage of laboratory recombinant gene fragments were discussed also, finally, the focuses on biosafety and preventive measures were reviewed.

0.05).The prevalence of strains with resistance to rifampin was lower than that of strains with resistance to clarithromycin(P

Objective To determine the serum levels of cytokine IL-1α, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, VEGF, IFNγ, EGF, MCP-1 and TNFα in preoperative and postoperative patients with hepatocarcinoma(HCC). Methods 30 patients with hepatocirrhosis were taken as hepatocirrho-sis group; 30 normal health examiners were taken as the normal control group. 30 patients with hepatocarcinoma were taken as HCC group; 30 patients with hepatic hemangioma were taken as the control group. Cytokines had been measured by biochips methods in evidence 180 automatic biochips analyze.Results The serum levels of IL-1β, IL-6, IL-8, VEGF and EGF of the patient with HCC and cirrhosis were significantly higher than those in normal control group. The serum levels of IL-10, IFNγand TNFα of the patient with HCC and cirrhosis were significantly lower than those in normal control group. The serum levels of IL-1β, IL-6, IL-8, VEGF and EGF of the preoperative patient with HCC were significantly higher than those in the postoperative patient with HCC. The serum levels of IL-10,IFNγ and TNFa of the preoperative patient with HCC were significantly lower than those in the postoperative patient with HCC. Conclusions These results suggest that the serum levels of angiogenic factors in HCC were increased. The serum levels of the inhibitors of vascular endothelial cells in HCC were decreased. The serum levels of angiogenic factors in the postoperative patient with HCC were decreased. The serum levels of inhibitors of vascular endothelial cells in the postoperative patient with HCC were increased.

ObjectiveTo determine the serum levels of cytokines associated with vascular endothelial cells before and after treatment with either transcatheter arterial chemoembolization (TACE) or partial hepatectomy in patients with hepatocellular carcinoma (HCC).MethodsThere were 30 patients who received partial hepatectomy (the operation group) and 30 patients who received TACE (the TACE group).Cytokines were measured before and after treatment.ResultsThe serum levels of IL-1β,IL-6,IL-8,VEGF and EGF of the post-TACE patients were significantly lower than the pre-TACE patients.The serum levels of IL-10,IFNγ and TNFα of the post-TACE patients were significantly higher than the pre-TACE patients.The serum levels of IL-1β,IL-6.IL-8,VEGF and EGF in the postoperative patients were significantly lower than the post-TACE patients.The serum levels of IL-10,IFNγ and TNFα of the postoperative patients were significantly higher than the post-TACE patients.ConclusionThe results suggested that the serum levels of angiogenic factors in the postTACE patients were significantly higher than the postoperative patients.The serum levels of the inhibitors of vascular endothelial cells of the post-TACE patients were significantly lower than the postoperative patients.

In the experiment of atherosclerosis, the change of the cerebrovascular dynamic indexes (CVDI) was observed. In the atherosclerosis group, the values of carotid artery's mean flow (Qmcan), mean velocity (Vmcan), maximal velocity (Vmax), minimal velocity (Vmin) and cerebrovascular compliance for zero pressure (CO) were significantly decreased (P

The transcription factor of ethylene responsive factor binding protein (ERF) is belonged to AP2/ERF superfamily, which is known to be unique in plants. AP2/ERF proteins have important functions in the transcriptional regulation of a variety of biological processes related to growth and development, as well as various responses to environmental stimuli. An ERF gene from Salvia miltiorrhiza is cloned and divided into ERF gene family group VII of Arabidopsis and Rice. It contains a MCGGAI (I/L) motif referred to as CMVII-1 and a single intron in the 5'-flanking region of the AP2/ERF domain. Sequence analysis reveals that the region of second extron has abundant polymorphism sites. There are 21 single nucleotide polymorphism sites (SNPs) in the 264 bp region, among them, 14 SNPs are synonymous substitutions and 7 SNPs are non-synonymous substitutions. Though analysis of 181 samples from Shandong, Shaanxi and Sichuan Provinces, it reveals that each production area has its own special genotypes, 5 SNPs show significant difference. Cluster based on UPGMA method reveals that different populations from specific province have clustered together. It shows that SmERF gene will be a candidate molecular marker for the identification of Salvia miltiorrhiza from different areas.

Acetyl-CoA C-acetyltransferase (AACT) is the first enzyme in the terpene synthesis pathway, catalyzed two units of acetyl-CoA to acetoacetyl-CoA. In order to study the tanshinone biosynthesis in Salvia miltiorrhiza, a novel AACT gene, SmAACT, was cloned using cDNA microarray and RACE strategy. The full length cDNA of SmAACT is 1 623 bp (accession No. EF635969), which contained a 1 200 bp open reading frame (ORF) encoding a 399 amino acid protein. Nine introns were found in the genomic sequence. SmAACT was upregulated by YE and Ag+ elicitors both with cDNA microarray and quantitative RT-PCR analyses along with the accumulation of tanshinones. Sequence homology comparison and phylogenetic analysis all suggested that SmAACT belonged to the class of acetyl-CoA C-acetyltransferase. The transcription level of SmAACT was relatively higher in root than that in stem and leaf tissues. SNP analysis revealed that SmAACT was highly variable in the region of 6 to 9 introns with 33 SNPs in the 600 bp region, there are 5 SNPs in the cDNA region while they are all synonymous cSNPs. Some special genotypes were found in Salvia miltiorrhiza from different areas. SmAACT will be an useful gene for further analyze the mechanism of gene regulation among the tanshinones biosynthesis.

Objective To study the tissue-specificity of ?-carotene-15,15’-monooxygenase(? CMOOX). Method Semi-quantitative RT-PCR and HPLC were used to study the expression of ?CMOOX mRNA and its activity in different tissues of chicken. Results ?CMOOX mRNA was expressed in tissues including heart, liver, spleen, lung, kidney, duodenum, jejunum, ileum, muscle and testis, not expressed in lung. Furthermore, it was expressed in jejunum with the highest level. ?CMOOX activity was found in every tissue, except lung, and highest in duodenum and jejunum. Conclusion The distribution of ?CMOOX in chicken has tissue specificity.