Adult ; Agriculture ; Female ; Humans ; Lung ; physiology ; Male ; Middle Aged ; Plastics ; Respiratory Function Tests ; Surveys and Questionnaires

Objective To determine whether volume transfer coefficient (Ktrans )can be used to differentiate high-grade glioma (HGG)and metastasis.Methods Thirty-nine patients with brain tumors (12 HGG,27 metastases)underwent dynamic contrast en-hanced MR imaging before surgical resection or stereotactic biopsy.Images were acquired with a three-dimensional (3D)fast gradi-ent echo sequence.Gadolinium-based contrast agent was injected intravenously with dosage of 0.1 mmol/kg bodyweight at a rate of 3.0 mL/s.Ktrans and Ve were calculated from the DCE MRI data.The results of Ktrans and Ve were compared between the 2 types of tumors.Receiver operating characteristic curve analysis was performed for each of the variables in differentiation cerebral metastasis from HGG.Results The Ktrans values in the parenchyma of HGG and metastases were 0.10 (0.11,0.71)min-1 and 0.21 (0.05, 0.77)min-1 ,respectively.The difference was not statistically significant (P>0.05).The Ktrans values in the peritumoral region of the HGG and brain metastasis were 0.04 (0.01,0.10)min-1 and 0.01 (0.00,0.06)min-1 ,respectively.There was a significant difference between the Ktrans values in the peritumoral edema of HGG and cerebral metastases (P<0.05).The optimal cutoff value of Ktrans for differentiating HGG from cerebral metastases was 0.03,with sensitivity of 75% and specificity of 70%.Conclusion Ktrans values in the peritumoral edema may be useful in the differentiating cerebral metastases between HGG.

AIM:To investigate the effect of RWDD3 gene silencing on the biological characteristics of human glioma U251 cells.METHODS: A lentiviral vector expressing RWDD3 shRNA was constructed and transfeeted into the U251 cells.The expression of RWDD3 at mRNA and protein levels was detected by real-time PCR and Western blot , re-spectively .The cell activity was determined by MTT assay .The colony formation ability was detected by the colony forma-tion assay .The cell proliferation ability was detected by BrdU incorporation assay .The cell invasion and migration were evaluated by Transwell assay .Flow cytometry was used to monitor the changes of cell cycle distribution and apoptosis .RE-SULTS:Recombinant lentivirus was successfully transfected into U 251 cells.Compared with the cells transfected with the scrambled shRNA and control cells, the cell activity, colony formation ability, and the invasive and migratory activities were inhibited, the cell cycle was arrested in G 0/G1 phase, and the apoptosis was increased in the U 251 cells transfected with RWDD3 shRNA ( P <0.05 ) .CONCLUSION: RWDD3 plays a vital role in proliferation and invasion of glioma cells.It may serve as a potential target of gene therapy for glioma .

China ; epidemiology ; Dust ; prevention & control ; Humans ; Silicon Dioxide ; chemistry ; Silicosis ; epidemiology ; prevention & control

AIM:To research the effects of lithium chloride on transforming growth factor beta (TGF-β) and connective tissue growth factor (CTGF) in cultured human Tenon capsule fibroblasts (HTFs) and explore its mechanism.METHODS:HTFs were cultured and identified by vimentin staining with immunofluorescence and the morphological characteristics.The experimental group was processed 48h with LiCl in concentration of 80mmol/L, the control group without LiCl.The mRNA expression of TGF-β and CTGF in two groups were analyzed with real-time fluorescent quantitative polymerase chain reaction (real time-qPCR) and the protein expression was detected with Western blot.RESULTS:The cultured HTFs expressed TGF-β and CTGF.The mRNA expression of TGF-β and CTGF significantly decreased compared with the control group(t=20.042, 14.995, P<0.05).the protein expression of TGF-β and CTGF also decreased significantly compared with the control group(t=46.058、12.452, P<0.05)CONCLUSION:The cultured HTFs can express TGF-β and CTGF in mRNA and proteins' level.LiCl can reduce the expression of TGF-β and CTGF both in gene and proteins' level.LiCl has the potential to modulate wound healing for glaucoma filtration surgery.

AIM To observe the clinical effects and safety of Zibei Zhike Granules (Asteris Radix et Rhizoma,Ardisiae japonicae Herba,Fritiliariae cirrhosae Bulbus,etc.) for acute broncho-bronchitis with remained toxicity lingering lung.METHODS A multi-center,randomized,double-blinded,double-simulation and positive drug parallel controlled trial was adopted.Two hundred and forty cases of patients with the 1 ∶ 1 ratio were assigned to treatment and control group.The treatment group were treated with Zibei Zhike Granules and the control group were treated with Zikebao Tablets (Asteris Radix et Rhizoma,Citri rubrum exocarpium,Platycodi Radix,etc.).The treatment course lasted five days.RESULTS The total effective rate of acute broncho-bronchitis in the treatment group was 73.04％,and 54.78％ in the control group.There was statistical significance between the total effective rate of the two groups (P ＜ 0.01).The total effective rate of traditional Chinese medicine syndrome in the treatment group was 73.91％ and 60.86％ in the control group,and there was statistical significance between the total effective rate of the two groups (P ＜ 0.05).The treatment group showed better clinical effects in improving individual symptoms of cough and spitting sputum.CONCLUSION Zibei Zhike Granules has good clinical effects on acute broncho-bronchitis.

OBJECTIVEDetermine the content of ursolic acid of Liuwei Dihuangwan.

METHODUsing NIR with PLS, PCA-BPANN and WT-BPANN.

RESULTThe predication recovery were 100.7%, 100.6%, 100.1%, and the RSD were 5.42%, 6.49%, 6.52% respectively.

CONCLUSIONNIR can be used in the determination of ursolic acid, which set up the foundation of on-line control of traditional Chinese medicine.

Cornus ; chemistry ; Drug Combinations ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Quality Control ; Spectroscopy, Near-Infrared ; Triterpenes ; analysis

Background The sex hormones plays an important role in the incidence of dry eye,especially for the regulation of function.However,the effects of sex hormones on lacrimal gland epithelial cells are below understand.Objective This study was to investgate the effects of estradiol and testosterone on the apoptosis of lacrimal gland cells induced by H2O2.Methods The lacrimal gland tissue was obtained from 2- or 3-month-old clean male New Zealand rabbits and the lacrimal gland epithelial cells were cultured in vitro using esplant culture method.The cells were identified by pan cytokeratin antibodies with immunocytochemistry.lacrimal gland epithelial cells were incubated in the 96 well plate at the density of 5 × l04 cells/ml for 44 hours.Estradiol or testosterone with the concentrations of 1 × 10-5,1 × 10-6,1 × 10-7,1 × 10-8 mol/L were added into the medium for 24 hours respectively and 1× 10-4 mol/L H2O2 treated the cells for 1 hour to induce the apoptosis in experimental groups.The cells treated by only 1 × 10-4 mol/L H2O2 were used as apoptotic control group,and the cells cultured by regular method were used as blank control group.The cell viability in different groups was detected using MTT at 570 nm ( A570 ),and the apoptotic rates of the cells were assayed using Annexin V/PI double staining.This use and maintain of experimental animals followed the Regulation for the Administration of Affairs Concerning Experimental Animals by State Science and Technology Commission.Results The cultured cells showed the irregular polygon in shape,and about 80％ cells was positive response for cytokeratin.MTT assay showed that the lower A570 values were detected in the H2O2-induced group,various concentrations of estradiol or testosterone groups compared with blank control group (P＜0.01 ).The A570 values in 1 × 10-5,1 × 10-6,1 × 10-7 mol/L estradiol groups or 1 × 10-6 mol/L testosterone group were significantly higher than ones of H2 O2-induced group (P＜0.01 ).Compared with corresponding concentrations of testosterone groups,the A570values in various concentrations of estradiol groups were elevated( P＜0.01 ).The apoptosis rates at the early and later phase were significantly declined in both estradiol group and testosterone group in comparison with H2 O2-induced group (P ＜ 0.01,P＜ 0.05 ),and those in estradiol group were lower than the testosterone group( P＜0.01,P＜0.05 ).Conclusions Estradiol and testosterone suppress the apoptosis of lacrimal gland cells induced by H2O2,and the stronger effect is found in estrogen.The inhibition of estrogen on lacrimal gland cell apoptosis show a dose-dependent manner to some extent.

Dust ; analysis ; Humans ; Magnoliopsida ; Pneumoconiosis ; epidemiology ; Prevalence

Hyperlipidemia (HLP) is the No.1 risk factor for patients with atherosclerosis (AS) and is directly related to the occurrence of coronary artery disease (CAD) and cerebrovascular disease. Therefore, prevention and treatment of AS is of great importance and of practical significance in controlling the incidence and mortality of CAD. With its peculiar syndrome-dependent therapy, traditional Chinese medicine (TCM) has accumulated abundant practical experiences in this field and good clinical effects have been achieved. Chinese herbal medicine, with its particularly unique advantages and high potentials yet to be tapped, displays its huge strength in HLP prevention and treatment. The progress of studies concerning prevention and treatment of HLP by Chinese herbal medicines, in the form of monomers or compound recipes, is reviewed in this paper.
Cholesterol ; metabolism ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Hyperlipidemias ; drug therapy ; Lipid Metabolism ; Lipid Peroxidation ; Receptors, LDL ; analysis