Objective:Since 1996,the esophageal stent of the curved type has been applied clinically by authors in order to solve the defects which the straight tube like stent could not coincide with the shape of the esophageal of the patient.Methods:The curved type stent made of "Z" type stainless steel was implanted after fixing it direction along the selected esophagus.Results:The application of the esophageal stent of the curved type in 29 cases indicated that the stents were coincidence with the folded esophagus,could decreases the pain and discomforts of the patients,and improved the stability of the stents.Conclusion:The esophageal stent of the curved type applied to the folded esophagus is much more effective clinically than the straight tube like type used before. [

Objective To optimize the microemulsion preparation of Fufang Zicao Oil(FZO).Methods The extraction conditions of microemulsion preparation of FZO were optimized by orthogonal experiment;the kinds and contents of surfactants and cosurfactants determined by pseudo-ternary phase diagram were used for the optimization of the prescription of FZO;centrifugation method was used for detecting the stability of FZO.Results The optimum extract conditions were as follows:10-mesh coarse powder of medicinal material,four times amount of solvent(sesame oil),extraction for 25 minutes.With Tween 80 and propylene glycol(7:3)as the surfactant and cosurfactant,and mixing with the oils in the proportion of 20:10,a steady microemulsion of FZO can be obtained after centrifugation by 13000 r? min-1 for 30 min.Conclusion Under the above achieved conditions,the obtained microemulsion of FZO is clear,transparent and steady.

Objective To construct five shRNA-expression plasmids and to investigate the expression of Smad2 in TGF-?/ Smads signal transduction treated with shRNA-expression plasmid.Methods Five shRNA-Smad2 DNA sequences from mRNA sequence of mouse Smad2 gene were designed and synthesized.DNA oligonucleotides encoding an appropriate shRNA were inserted to shRNA expression vector respectively.Five shRNA-Smad2 expression plasmids were obtained and then transfected into NIH/3T3 cells.The suppressed expression of Smad2 was assessed by RT-PCR and Western-blotting.Results The shRNA-expression plasmid numbered 2.4 could markedly reduce the expression of Smad2.The suppression effect of the RNAi-pool composed of four different plasmids was more obvious than that of any single.Conclusion The shRNA-expression plasmids were successfully constructed,which could specifically and effectively suppress the expression of Smad2.The method of using a mixture of RNAi plasmids to improve the RNAi efficiency was established.

Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; Dendritic Cell Sarcoma, Follicular ; metabolism ; pathology ; Dendritic Cell Sarcoma, Interdigitating ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Granuloma ; metabolism ; pathology ; surgery ; Head and Neck Neoplasms ; metabolism ; pathology ; surgery ; Humans ; Leukocyte Common Antigens ; metabolism ; Lymph Nodes ; metabolism ; pathology ; Lymphoma, Large-Cell, Anaplastic ; metabolism ; pathology ; Lymphoma, T-Cell ; metabolism ; pathology ; Male ; Middle Aged ; Neoplasms, Multiple Primary ; metabolism ; pathology ; surgery ; Receptors, Cell Surface ; metabolism ; S100 Proteins ; metabolism ; Tonsillar Neoplasms ; metabolism ; pathology ; secondary

Objective To evaluate the application of echocardiography in the diagnosis of bicuspid aortic valve and its pathophysiologic development and to demonstrate the degree of aortic valve dysfunction. Methods The echocardiographic characteristics and clinical data were analyzed retrospectively in 135 patients with bicuspid aortic valve to demonstrate the variation of aortic valve dysfunction in the progression of the course of the disease. Results Isolated aortic regurgitation was present in 68 (50%) patients, 19 (14%)patients had isolated aortic stenosis and 29 (22%)patients had combined aortic stenosis and regurgitation, 19 (14%) patients had neither stenosis nor regurgitation. Aortic regurgitation were all more commen within each age group, aortic regurgitation were also more commen within each age group in patients in their advanced course who went to surgical treatment. Conclusions Echocardiography is an effective method in the early diagnosis of aortic valve dysfunction.

two-dimensional strain echocardiography can observe dynamic change of regional systolic function,combined with the two methods can more accurately assess the treatment results of coronary artery bypass surgery.

The underlying mechanism of deguelin regulating the cell cycle in human Burkitt's lymphoma cell line Raji cells in vitro, and the cytotoxicity of deguelin to Raji cells and human peripheral blood monocular cells (PBMCs) were investigated. The effects of deguelin on the growth of Raji cells were studied by 3-(4, 5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium (MTT) assay. Apoptosis was detected through Hoechst 33258 staining. The effect of deguelin on the cell cycle of Raji cells was studied by a propidium iodide method. The expression levels of cyclin D1, P21 and pRb were examined by using Western blotting. The results showed that the proliferation of Raji cells was inhibited in the deguelin-treated group, with a 24-h IC(50) value of 21.61 nmol/L and a 36-h IC(50) value of 17.07 nmol/L. Proliferation in Raji cells was inhibited significantly by deguelin, while little change was observed in PBMCs. Deguelin induced G(2)/M arrest in Raji cells. The expression of cyclin D1, P21 and pRb was dramatically down-regulated by deguelin in a dose-dependent manner. It was concluded that deguelin could inhibit the proliferation of Raji cells by arresting the cells at G(2)/M phase and inducing the cell apoptosis. Moreover, deguelin selectively induced apoptosis of Raji cells with low toxicity to PBMCs. The antitumor effects of deguelin were related to the down-regulated expression of cyclin D1, P21 and pRb proteins.
Cell Cycle ; drug effects ; Cell Line ; Cell Proliferation ; drug effects ; Humans ; Rotenone ; analogs & derivatives ; pharmacology

The genetic diversity of three Tibetan herbs, i. e., Sang-Di, E-Dewa and Ye-Xingba (Tibetan names), was studied based on the field collection, specimen identification and DNA sequence analysis. Swertia hispidicalyx, Gentiana lhassica and Scrophularia dentata, as the original plants of the three Tibetan herbs, were collected and identified. The regions of ITS, matK, rbcL, rpoC1, trnL(UAA), psbA-trnH, atpB-rbcL, trnS (GCU)-trnG(UCC), rpl20-rps12, trnL(UAA)-trnF(GAA) and nadl 2nd intron were amplified and sequenced. The ITS regions of S. hispidicalyx and S. dentata were cloned and sequenced, and the sequences were classified into different genotypes. All the sequences were analyzed and compared with those of closely related species. Our studies may provide reference for the genetic diversity analysis and molecular identification of the three Tibetan herbs.
Genetic Variation ; Gentiana ; classification ; genetics ; Phylogeny ; Plant Proteins ; genetics ; Plants, Medicinal ; classification ; genetics ; Scrophularia ; classification ; genetics ; Swertia ; classification ; genetics ; Tibet

Objective To observe the effects of transcutaneous electrical acupoint stimulation (TEAS) on hand dysfunction after stroke. Methods From March, 2013 to June, 2015, 56 cases of stroke with hand dysfunction were divided into group A (n=28) and group B (n=28). Both groups received basic rehabilitation, while group B received TEAS in addition, for six weeks. They were evaluated with Brunnstrom Grades, Manunl Muscle Test (MMT), Fugl- Meyer Assessment (FMA) of fingers, Motor Status Scale (MSS), modified Ashworth Scale (MAS), National Institutes of Health Stroke Scale (NIHSS), Motor Hand Functional Status Score and Barthel Index (BI). Results The scores of FMA of fingers, MMT of wrist flexion, MSS, MAS and BI were more in group B than in group A (t>2.2527, P<0.05), and the score of NI-HSS was less in group B (t=3.556, P<0.001). There was no significant difference between two groups in the score of Motor Hand Functional Status Score and MMT of wrist extension (t<0.310, P>0.05). Conclusion TEAS can promote the recovery of hand function and the activi-ties of daily living in patients after stroke.

Objective To investigate the mechanisms of astrocytes modulating neurons in rat supraoptic nucleus induced by hypotonic stimulation and the effect of 6-aminomethyl-3-methyl-4H-1,2,4-benzothiadiazine-1,1dioxide HCl(TAG,a antagonist for taurine) or carbenoxolone(CBX,a gap junction blocker)on the responses of astrocytes and neurons in SON.Methods Adult male Sprague-Dawley rats were divided into four groups: the control group was injected with 5.5ml/kg 0.9% NaCl solution into the caudal vein;the hypotonic group was injected with 5.5 ml/kg hypo-saline(0.83% glucose plus 0.3% NaCl);TAG + hypotonic and CBX + hypotonic groups were injected with TAG(100?mol/L) or CBX(10g/L) into the lateral ventricle respectively,and were injected 2 hours later with hypotonic saline into the caudal vein.With anti-Fos,anti-vasopressin(VP),anti-glycine receptor(GlyR),anti-glial fibrillary acidic protein(GFAP) and anti-connexin43(Cx43) immunofluorescent staining methods,the responses of neurons and astrocytes in SON were studied.Results In control rats,Fos-,VP-,and GlyR-expression in the neurons and GFAP-or Cx43-expression in the astrocytes were lower.In hypotonic rats,GFAP-,Cx43-and GlyR signals were more than those in control rats,while Fos-and VP-signals were less.Compared with those in hypotonic rats in TAG + hypotonic or CBX + hypotonic rats,GFAP-and Cx43-signals in the astrocytes were the same,GlyR-signals in the neurons decreased,and Fos-and VP-signals increased.Conclusion Hypotonic stimulation activates SON astrocytes,which then release taurine through gap junction signaling to the neurons and inhibit the release of VP from the neurons.