Objective To investigate the effects of Modifded DaHuang ZheChong Pill on T lymphocyte subpopulation of S180 tumor-bearing mice.Methods The mice were built to the S180 sarcoma model.The experimental animals were divided into 5 groups:High-dose Modifded DaHuang ZheChong Pill group.middle-dose Modifded DaHuang ZheChong Pill group,low-dose Modifded DaHuang ZheChong Pill group,model group,and normal group.The proportion of the T lymphocyte subpopulation was detected by Flow Cytometer in the different experimental groups.Results Modifded DaHuang ZheChong pill could control radio of CD4/CD8,especially,in the high dosage group.Conclusion Modifded DaHuang ZheChong Pill could remit and improve the immune function in tumor-bearing mice,showing the best results in High-dose Modifded DaHuang ZheChong Pill group.

The property theory of Chinese herbal medicine (CHM) is regarded as the core and basic of Chinese medical theory, however, the underlying mechanism of the properties in CHMs remains unclear, which impedes a barrier for the modernization of Chinese herbal medicine. The properties of CHM are often categorized into cold and heat according to the theory of Chinese medicine, which are essential to guide the clinical application of CHMs. There is an urgent demand to build a cold/heat property classification model to facilitate the property theory of Chinese herbal medicine, as well as to clarify the controversial properties of some herbs. Based on previous studies on the cold/heat properties of CHM, in this paper, we described a novel strategy on building a cold/heat property classification model based on herbal bio-effect. The interdisciplinary cooperation of systems biology, pharmacological network, and pattern recognition technique might lighten the study on cold/heat property theory, provide a scientific model for determination the cold/heat property of herbal medicines, and a new strategy for expanding the Chinese herbal medicine resources as well.
Drugs, Chinese Herbal ; chemistry ; therapeutic use ; Herbal Medicine ; Humans ; Phytotherapy ; Plants, Medicinal ; chemistry

Objective: To explore the effect of activation of peroxisome proliferator-activated receptor gamma (PPARγ) on cell cycle arrest of gastric carcinoma cell line MGC803. Methods: The inhibitory effect of pioglitazone (PGZ) on proliferation of MGC803 cells was analyzed by MTT assay. Cell cycle were detected by flow cytometry (FCM). The protein expression of PPARγ, cyclinD1 and cell cycle protein-dependent kinase CDK4 in MGC803 cells was determined by reverse transcriptase-polymerase chain reaction (RT-PCR). Results: Treatment with 0.1-10 μmol/L, PGZ for 96 h significantly inhibited cell proliferation. The proportion of MGC803 cells at G1 phase was significantly increased when treated with 10 μmol/L PGZ for 48, 72 and 96 h, and showed an apparent G1 phase arrest. The expression of PPARγ was at a low level in MGC803 cells and significantly up-regulated when treated with 10 μmol/L, PGZ for 48 h (P < 0.01). The expression of CDK4 in MGC803 cells was significantly down-regulated when treated with 10 μmol/L, PGZ for 96 h (P < 0.01) and the expression of cyclinD1 was slightly down-regulated. Conclusion: Activation of PPARγ significantly induces G1 phase arrest, which is associated with down-regulation of the expression of CDK4 and cyclinD1.

Objective To analyze the clinical efficacy and safety of amiodarone in the treatment of the elderly patients with ventricular arrhythmia.Methods 136 elderly patients with ventricular arrhythmia were randomly divided into the observation group (n =68cases) and control group (n =68cases).The observation group was given amiodarone by intravenous to treat the elderly ventricular arrhythmia,and patients in the control group were treated with combination therapy.After treatment for 4 weeks,the treatment outcomes were observed and compared.Results The obvious effective rate and total effective rate of the observation group was 51.47％,92.65％).which were significantly higher than those in the control group (51.47 ％,92.65 ％) (P ＜ 0.05).There was no significant difference in the incidence rate of adverse effect between the two groups (P ＞ 0.05).Conclusion Amiodarone has good clinical effect in treatment of elderly patients with ventricular arrhythmia,it is worthy of clinical use.

Child ; Humans ; Myelodysplastic Syndromes ; diagnosis ; Prognosis

Objective:To construct a fusion DNA vaccine pEGFP-C3-B7.2-hTERT and to observe the capability of pEGFP-C3-B7.2-hTERT DNA vaccine to induce specific anti-tumor immune responses and to inhibit growth of the hepatoma transplanted from H22 cells. Methods: The B7.2 and hTERT cDNA (amplified by RT-PCR), together with pEGFP-C3 as the vector were used to construct fusion gene plasmid pEGFP-C3-B7.2-hTERT, which was then used to vaccinated C57BL/6 mice for 3 times at a 7 d interval. Animals vaccinated with pEGFP-C3-B7.2, pEGFP-C3-hTERT, pEGFP-C3 and PBS were taken as controls. Splenocytes CTLs of immunized mice, the levels of IL-2, IFN-? in the culture supernatant, the levels of antibodies against hTERT, and the changes of the T lymphocyte subsets in the peripheral blood were all examined. The mice harboring hepatocarcinoma H22 cells were challenged with pEGFP-C3-B7.2-hTERT and the tumor forming time and the survival periods of mice were observed. Results: Agarose gel electrophoresis, nuclease digestion and sequencing confirmed the successful construction of pEGFP-C3-B7.2-hTERT. The CTLs activity of splenocytes from the mice immunized with pEGFP-C3-B7.2-hTERT fusion gene was significantly higher than those of the other groups (P

Objective To study the fibrous capsule structure and its change after expansion.Methods Twelve minipigs were chosen for establishing the animal models of conventional intermittent tissue expansion (CITE) and continuous pressure tissue expansion (CPTE). The capsule samples were taken for measurement and histological examination.Results The thickness and the contraction rates of capsules in CPTE group were significantly less than those of CITE group. The capsule consisted of four layers, in which a large amount of collagen and elastic fibers existed and some small arteries, veins and capillaries were well developed. After expanded flaps were transplanted, capsules contained in flaps were partially degenerated except elastic fiber layer and fibrolaminar layer, but capsules on the wound bed almost all degenerated. Conclusion The results suggest that capsules have contractive and blood supply abilities. Capsulectomy is able to decrease flap contraction. Large expanded flaps are better to have the capsule reserved. No efforts shall be done to the capsules on wound beds.

Objective To investigate the cell dynamic changes of conventional intermittent tissue expansion (CITE) and continuous pressure controlled tissue expansion (CPTE). Methods Domestic pigs were chosen for CITE and CPTE models. Immunohistochemical technique was used to detect proliferative cells, DNA fragments in situ labeling for apoptotic cells, and H E stain for total fibroblast counting. Results Proliferative index of basal cell increased during expansion. The peak value of 78.5% reached at the ninth day in the CITE group versus 84.2 % at fourth day in the CPTE group. Proliferation index in both groups decreased after expansion. Fibroblast proliferation, apoptosis and total fibroblast density increased slowly in both groups during and after expansion. At the sixth day, total fibroblast densities in CITE group (38.1 cells/H) and in CPTE group (40.9 cells/H) were significantly increased, compared with 34.93 cells/H in the normal skin. There were obvious proliferation and apoptosis phenomena in epidermal cells and skin adnexa. Conclusion Tissue expansion has both effects of proliferation and apoptosis on cell dynamics. Continuous tissue expansion can induce tissues growing much effectively.

Periprosthetic osteolysis and aseptic loosening after total hip arthroplasty are the common causes for revision surgery,which are initiated by wear particles released from the articular surfaces of prosthetic components.These components include ultra-high molecular weight polyethylene,titanium alloy,Al2O3,ZrO2 and polymethylmethacrylate.Wear particles activate macrophage via phagocytosis or pattern recognition receptor,resulting in release of inflammatory mediators such as macrophage colony-stimulating factor (M-CSF),macrophage chemotactic protein-1 (MCP-1),macrophage inhibitory protein-1 (MIP-1),IL-1β,IL-6 and TNF-α.Furthermore,wear particles stimulate M0 macrophage to polarize to M1 macrophage,promoting the release of inflammatory mediators.The periprosthetic osteolysis process is a cell/cytokine-mediated biological cascade induced by macrophage activation,involving the monocyte/macrophage cell line,such as macrophages,osteoclasts,and dendritic cells.The mesenchymal cells,including osteoblasts,osteocytes,fibroblasts and lymphocytes,lead to a deviation in the balance of osteoblast-osteoclast interactions within the basic multicellular unit,resulting in periprosthetic osteolysis.Fibrobalst,dendritic,and lymphocyte cells can enhance the recruitment and activation of macrophages by secreting MCP-1,MIP-1,and IL-8.Furthermore,the upregulated expression of RANKL,TNF-α,and IL-1 β facilitates the osteoclast differentiation from osteoclast precursor.TNF-α,IL-1 β together with wear particles can upregulate the expression of IL-6,MCP-1 and M-CSF of osteoblast and promote the recruitment and activation of macrophages.Nuclear transcriptional factor NF-κB plays a vital role in mediating periprosthetic inflammatory response and gene expression of bone metabolism.Different inflammatory factors can induce different expression of its downstream gene,ultimately,promoting or hindering the osteolysis process.The individual difference of periprosthetic osteolysis may also relate to single nucleotide polymorphism of IL-1RA,IL-6 and MMP-1 gene.

BACKGROUND:Pericytes, which are widely distributed in the microvasculature except lymphatic vessels, are not only a constituent of microvessels, but also play an important role in microvascular occurrence, development, stability, maturity and remodeling. Its signal transduction is currently a hot spot. OBJECTIVE:To review recent advances in the signal pathways related to pericytes and angiogenesis. METHODS:We retrieved PubMed database, Wanfang database, CNKI database and China Biology Medicine disc for articles addressing pericytes and angiogenesis published from 1994 to 2014. The keywords were “pricytes; endothelial cels; microvessels; signal transduction” in English and Chinese, respectively.RESULTS AND CONCLUSION:In the early stage of capilary formation, recruitment of pericytes contributes to the occurrence and development of new blood capilaries. However, in the late stage of angiogenesis, pericytes inhibit endothelial cel proliferation and promote endothelial cel differentiation, thereby promoting vascular maturation, maintaining normal structure and regulating their permeability. In this process, signaling pathways of platelet-derived growth factor B/platelet-derived growth factor receptor β, transforming growth factor β, angiopoietin-1/Tie-2, human heparin binding epidermal growth factor/ErbBs, and stromal cel derived factor 1α/CXCR4 play an important regulatory role in pericytes and angiogenesis.