Objective To build rat DVT inferior vena cava partial stasis (narrow) model, to detected the expression ofβ2-GP1, VEGF and TF in rat blood, and to investigat the correlation betweenβ2-GP1, VEGF and TF with DVT. Meth?ods SD rats (n=70) are divided into control group (n=10), sham operation group (n=30) and the model group (n=30) ran?domly and DVT model was built by the inferior vena cava partial stasis (narrow) after 2 h, 8 h and 24 h respectively. In each time point, ten rats were taken in each group, inferior vena cava blood were collected whileβ2-GP1, VEGF and TF expres?sion were detected by ELISA. Results In rat experiment, compared with control group, there was no significant change in?expression of β2-GP1, VEGF and TF in sham operation group (P > 0.05). Levels of β2-GP1, VEGF and TF were in?creased at the 2nd hour and 8th hour then peak at the 24th hour which was higher than those in the 24th hour control group and in Sham group and it was also higher than those in the 2nd hour and the 8th hour in model group with statistical signifi?cant difference (P<0.01). Conclusion Based on the above experimental data, in rat DVT formation process, β2-GP1, VEGF and TF may play an important role in promote DVT formation.

Objective To investigate the association between the signaling pathways of MCP-1-pCDH-GFP-trans?fected cells and deep venous thrombosis (DVT). Methods The cultured human umbilical vein endothelial cells (HUVECs) were tested by immunofluorescence and co-immunoprecipitation methods. The constructed MCP-1 over-expression/interfer?ence vector, and the change of transcription profile were detected by microarray assay and biological information technology analysis. Results MCP-1 over-expression/interference vector MCP-1-pCDH-GFP/MCP-1-LMP shRNAmir1 was con?structed and HUVECs were transfected. According to the microarray analysis we found that there were 18 down-expressed signaling pathways and 7 up-expressed signaling pathways in MCP-1-pCDH-GFP-transfected cells. There were 60 down-expressed signaling pathways and 15 up-expressed signaling pathways in the MCP-1-LMP shRNAmir1 transfected cells. Conclusion Signaling pathways of MCP-1 plays an important role in DVT formation,which may provide us a new way to study molecular mechanism of DVT.

Diseases in Twins ; Epilepsy ; complications ; Epiphyses, Slipped ; etiology ; Femur Head ; Humans ; Infant ; Male

Aim To investigate the effect of catalpol from Radix rehmanniae on the proliferation,differentiation and matrix mineralization of MC3T3-E1 cells in vitro.Methods Catalpol from Radix rehmanniae of different concentration preparations were extracted with ethanol(catalpol ethanol-extract),respectively.A mouse osteoblast cell line MC3T3-E1 was used to determine the potency of catalpol.MTT were applied to determine proliferation of the cell treated by catalpol at different concentrations.Differentiating effects of the catalpol with different concentrations in the cell were evaluated through the examinations of alkaline phosphatase(ALP)activities and bone gla protein(BGP)levels.Von kossa staining method was used to demonstrate the effects of the catalpol on calcification of the cells.Results Catalpol at concentration from 1×10~(-7) to 1×10~(-9) mol·L~(-1) for 24 hours and 48 hours effective promoted the proliferation of osteoblasts of MC3T3-E1 cells line.Catalpol at concentration from 1×10~(-5) to 1×10~(-6) mol·L~(-1) for 48 hours and 72 hours effective stimulated the activity of ALP of osteoblasts of MC3T3-E1 cells line.Catalpol at concentration from 1×10~(-5) to 1×10~(-6) mol·L~(-1) for 8 days and 12 days effective increased the synthesis and secretion of bone gla protein(BGP) of osteoblasts of MC3T3-E1 cells line.Catalpol at concentration from 1×10~(-5) to 1×10~(-6) mol·L~(-1) for 19 days effective increased the mineralized bone nodular structure number of osteoblasts of MC3T3-E1 cells line.Conclusion Catalpol could promote proliferation and differentiation of MC3T3-E1 cells in vitro.Catalpol may be one of effective monomer of Radix rehmanniae on treatment of osteoporosis.

Objective To evaluate the protective effect of leukocyte-depleted warm blood cardioplegia on immature myocardium in infant.Methods Thirty infants with congenital heart disease whose American Society of Anesthesiologists(ASA) were Ⅱ-Ⅲ,aortic clamping time and bypass time were more than 30,40 minutes were respectively selected and divided into 2 groups:Experimental group and control group.Experimental group were perfused with leukocyte-depleted warm blood cardioplegia while control group perfused with common warm blood cardiplegia.Under monitoring the hemodynamics at surgery,the serum levels of troponin I(cTnI) and intercellular adhesion molecule-1(ICAM-1) in heparinized anticoagulant blood samples from radial artery at different time points [anesthesia induction and before extracorporeal circulation(T1),30 min after aortic clamping(T2) and aortic declamping 5 min(T3),15 min(T4)]were detected.Three pieces of cardiac muscle were taken from right atrium at different time points and the levels of myeloperoxidase(MPO) were detected.Results 1.The serum cTnI and ICAM-1 levels after aortic declamping were higher than those before operation,and the levels in experimental group were lower than those in control group(t=2.358,2.533,2.30,2.639 Pa

Aim To investigate the effect of total flavonoids of Epimedium sagittatum(TFE)and its metabolites on the proliferation and function expression of newborn rats calvarial osteoblasts(ROB).Methods TFE was supplemented into the culture medium of ROB at 0.2,2,20,100 and 200 mg?L-1 respectively.The serum of rats administered TFES(SRAT) was also added into the medium in a parallel treatment at 2%,4%,8% and 16% respectively.Their effects on cell proliferation and function expression were studied by MTT and the analysis of osteogenic differentiation marks.Results TFE had no effect on cell proliferation and function expression at any concentration.However,2% and 4% SRAT stimulated cell proliferation and,4% SRAT promoted the maturation and function of osteoblast by improving the alkaline phosphatase(ALP) activity,bone gla protein(BGP) secretion,calcium deposition and the number of mineralized nodular structures.Conclusions The effective substance of herba epimedii treating on osteoporosis is not TFE itself but certain of metabolites derived from TFE and the products induced by these metabolites in serum.The metabolites in serum of TFE may enhance the cell function expression and proliferation.

Patients with hypoxia pulmonary hypertension (HPH) are often accompanied by dyspnea, fatigue, and headache. With the development of the disease, the right ventricle gradually collapses and eventually leads to death. Hypoxic pulmonary vascular remodeling is an important pathological basis of HPH, and the remodeled pulmonary vessels will form permanent thickening. The mechanism of hypoxic pulmonary vascular remodeling is relatively complex. At present, there are few studies on drugs for pulmonary vascular remodeling on the market, mainly focusing on the alleviation of pulmonary vasoconstriction. It was found that hypoxia induces calcium overload in pulmonary artery smooth muscle cells (PASMCs), resulting in the proliferation of PASMCs. The main mechanisms include: ① abnormal expression of calcium pumps; ② abnormal calcium channels in the plasma membrane of pulmonary artery smooth muscle cells; ③ overexpression of calcium-sensitive receptors in cells; ④ the expression of Na⁺/Ca²⁺ exchanger type-1 was abnormal. This review summarized several mechanisms of hypoxia induced calcium overload leading to pulmonary artery remodeling, hoping to provide a new idea for the treatment of HPH.

To investigate the effect of Tanreqing injection on immune activity of peripheral blood lymphocytes of patients with lung cancer. The peripheral blood lymphocytes of patients with lung cancer and healthy persons were separated by the density gradient centrifugation method for subsequent experiments, with those from healthy persons as the positive control. The effect of Tanreqing injection on stimulating the proliferation of lymphocytes with phytohemagglutinin (PHA) was determined by MTT method. The effect of Tanreqing injection on the lymphocyte secretions of IFN-γ and TNF-α and the subset ratio of lymphocytes cultured separately or with Tanreqing injection of different concentrations were examined by ELISA and flow cytometry (FCM) respectively. In addition, the LDH release assay was used to detect the cytotoxicity of cytotoxic T cells (CTL) and natural killer cells (NK). According to the findings, all of immunological indexes of lymphocytes from patients with lung cancer were weaker than that of healthy persons, but with the obvious increases in proliferation activity and IFN-γ and TNF-α secretions of lymphocytes co-cultured with Tanreqing Injection (P < 0.05). Among lymphocyte subsets co-cultured with Tanreqing Injection, CD3+, CD3+ CD4+ and CD3- CD16 + 56+ cell ratios notably increased, whereas CD4+ CD25+ Treg cell ratio obviously decreased (P < 0.05). In the meantime, Tanreqing injection can markedly promote the cytotoxicities of CTL and NK (P < 0.05). In conclusion, Tanreqing injection shows a significant effect in promoting the immune activity of lymphocytes from patients with lung cancer and their anti-tumor immunity.
Cell Proliferation ; drug effects ; Cells, Cultured ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Interferon-gamma ; genetics ; immunology ; Killer Cells, Natural ; drug effects ; immunology ; Lung Neoplasms ; drug therapy ; genetics ; immunology ; physiopathology ; T-Lymphocytes, Cytotoxic ; drug effects ; immunology ; Tumor Necrosis Factor-alpha ; genetics ; immunology

BACKGROUND: According to correlation of "acu-points-meridians-viscera-target-organs", two administration ways of acu-point application and oral medication have been used to treat osteoporosis, both ways can effect via "kidney-meridian tropism"; however whether there is a specificity of target-administration?OBJECTIVE: To investigate the effect of different administration ways of kidney-strengthening remedy on "yang abating and yin hoarding" of osteocytes in experimental osteoporosis by observation the correlation between "receptor and meridian-tropism".DESIGN: A randomized and controlled trial of different administration ways of kidney-strengthening remedy, taking rats with osteoporosis as subject.SETTING: Departments of Prescription Science and Biochemistry of Traditional Chinese Medicine (TCM) Collage, Hebei Medical University, and Qiaodong District Hospital of Shijiazhuang City.MATERIALS: The experiment was completed from June 2004 to May 2005 at the Laboratory of Integrative Medicine Basis of Hebei Medical University. Totally 120 SD rats, aged 3 months and of clean grade, were at random divided into 6 groups: normal control, pathological model, kidney strengthening, bladder meridian application, kidney meridian application and non-special application groups, with either sex being 10 in each group.The kidney strengthening remedy mainly consisted of fortune's Dry Naria Flavoniods and Icarine, each gram of fluid extract contained 9.543 g of the crude drug. The application recipe for anti-osteoporosis consisted of Radix Rehmanniae Praeparata, Cortex Moutan Radicis, Herba Epimedii, etc.METHODS: Except for those in normal group, the rats in the other groups were all given injection of dexamethasone to set up the osteoporosis models. The rats in normal control and pathological model groups were not given medicine, the rats in kidney strengthening group were by gavage given kidney strengthening remedy at 0.8 g/100 g wet. The rats in bladder meridian group were treated by anti-osteoporosis application at the points of Shenshu (BL 23) and Feiyang (BL 58) of the bladder meridian; the rats in kidney meridian group were treated by anti-osteoporosis application at the points of Taixi (KI 3 23) and Dazhong (KI 4) of the kidney meridian;and the rats in non-special application group were treated by anti-osteoporosis application at the areas of non-point-meridian. After 13 weeks administration, the rats were put to death, the concentrations of serum estradiol, testosterone, calcitonin and parathyroid hormone were detected with radio-immunoassay, and both the dynamic and static status parameters about bone morphosis were also measured.MAIN OUTCOME MEASURES:① Estradiol,testosterone,estradiol/testosterone, bone mineral density, calcitonin, parathyroid hormone, and calcitonin/parathyroid hormone of rats in each group after administration ② Both the dynamic and static status parameters about bone morphosis of rats in each group after administration.RESULTS: All rats involved in the trial entered the final result analysis.① The results of biochemical indexes of the rats in each group after administration: Compared with normal control group, the levels of estradiol,testosterone, estradiol/testosterone, bone mineral density, calcitonin and calcitonin/parathyroid hormone of the rats in pathological and non-special application groups after administration were remarkably decreased (P ＜ 0.01), but the level of parathyroid hormone was obviously increased (P ＜ 0.01); however for the levels of the above indexes of rats in kidney strengthening, bladder meridian application and kidney meridian application groups there were obvious changes (all P ＞ 0.05).② The results ofdynamic and static status parameters about bone morphosis of rats in each group after administration: Compared with normal group, in pathological and non-special application groups the volume percentage of bone trabecula, surface percentage of bone trabecula, formation surface percentage of bone trabecula, activity formation surface percentage of bone trabecula,mineralization deposition rate of bone trabecula, longitudinal bone growth rate, and velocity of bone trabeculation were all decreased (P ＜ 0.01), but the absorbance surface percentage of bone trabecula remarkably increased (P ＜ 0.01); however for the levels of the above indexes of rats in kidney strengthening, bladder meridian application and kidney meridian application groups there were obvious changes (all P ＞ 0.05).CONCLUSION: The anti-osteoporosis application can inhibit bone absorption and promote bone formation. It can be effectively controlled in quantity of drug entering the blood circulation, and with the same effect as that given orally. It can check the state of "bone destruction being more than bone formation" in osteoporosis, reverse the process of "yang abating and yin hoarding", making the bone absorption of osteoclast decrease, and the ability of the bone formation of osteoblast increase, enhancing bone mineral density, so that the "amplifying effect of point-meridian-passageway" comes into play.