Acupuncture Therapy ; instrumentation ; methods ; standards ; China ; Humans ; Moxibustion ; instrumentation ; methods ; standards ; Needles ; standards ; Reference Standards

Objective To investigate the expression and significance of transforming growth factor-beta1(TGF-? 1),transforming growth factor-beta receptor typeⅠ(TGF-? RⅠ) in human ovarian carcinoma. Methods Inmmunohistochemical SP method was used to detect the expression of TGF-? 1 and TGF-? RI in 85 cases of benign and malignant ovarian tumors. Results The positive rate of TGF-? 1 in benign and malignant ovarian tumors was significantly higher than that in the normal ovarian tissues(P

To evaluate the feasibility of using polyethyleneimine (PEI) coated magnetic iron.oxide nanoparticles (polyMAG-1000) as gene vectors. The surface characteristics of the nanoparticles were observed with scanning electron microscopy. The ability of the nanoparticles to combine with and protect DNA was investigated at different PH values after polyMAG-1000 and DNA were combined in different ratios. The nanoparticles were tested as gene vectors with in vitro transfection models. Under the scanning electron microscope the nanoparticles were about 100 nm in diameter. The nanoparticles could bind and condense DNA under acid, neutral and alkaline conditions, and they could transfer genes into cells and express green fluorescent proteins (GFP). The transfection efficiency was highest (51%) when the ratio of nanoparticles to DNA was 1:1 (v:w). In that ratio, the difference in transfection efficiency was marked depending on whether a magnetic field was present or not: about 10% when it was absent but 51% when it was present. The magnetic iron oxide nanoparticles coated with PEI may potentially be used as gene vectors.
Breast Neoplasms/metabolism ; Breast Neoplasms/*pathology ; Cell Line, Tumor ; Ferric Compounds/*chemistry ; Ferric Compounds/metabolism ; Gene Targeting ; Genetic Vectors ; Green Fluorescent Proteins ; Magnetics ; Nanotechnology ; Particle Size ; Polyethyleneimine/chemistry ; Transfection/methods

The aim of this study was to evaluate the feasibility and efficacy of using TRAIL gene to treat breast cancer mediated with a novel carrier - magnetic iron oxide nanoparticles (poly-MAG-1000) coated with PEI. The magnetic iron oxide nanoparticles were used as gene carrier to transfect TRAIL gene into MCF-7 cells. The polyMAG-1000 without TRAIL gene was transfected into the tumor cells as negative control. TRAIL gene transfection with liposome as carrier served as positive control. The apoptosis of cells was detected with TUNEL method. The apoptosis ratio of tumor cells was measured with flow cytometry (FCM). It was found that the apoptosis occurred in the tumor cells after transfection of TRAIL gene mediated by both polyMAG-1000 and liposome. The apoptosis ratio in the group with polyMAG-1000 as gene carrier was (25.11+/-2.85) %, whereas it was (5.06+/- 1.05) % in the control group with polyMAG-1000 (P<0.01). The apoptosis ratio was as low as (18.31+/-2.44) % in the group with liposome as gene carrier (P<0.05, as compared with the group with polyMAG-1000 as gene carrier). It is suggested that TRAIL gene may induce apoptosis in MCF-7 breast cancer cells. The magnetic iron oxide nanoparticles coated with PEI may be a potential gene carrier with high transfection efficacy for cancer gene therapy..

Objective To evaluate the concordance on cardiac index (CI) measured with arterial pressure based cardiac output (APCO) and pulmonary artery catheter (PAC) during cesarean section in parturients with congenital heart disease combined with severe pulmonary hypertension.Methods Forty-five congenital heart disease combined with severe pulmonary hypertension parturient who scheduled for cesarean section were selected,APCO and PAC were used for cardiac output and other parameters of hemodynamics monitoring during operation in all patients.Continuous epidural anesthesia was performed.CI was recorded immediately before epidural administration (T1),at 5 and 10 min after epidural administration (T2,T3),immediately before delivery (T4),and at 2 and 5 min after delivery (T5,T6).The correlation of CI between APCO and PAC (A-CI and P-CI,respectively) was tested by Pearson correlation analysis and agreement test.Results The P-CI was significantly higher than A-CI,there was statistical difference (P ＜ 0.05).Compared with T1,no significant differences between A-CI and P-CI were found at T2-T4 and T6 (P ＞ 0.05),The A-CI at T5 [(4.5 ± 1.1) L/(min·m2) vs.(4.2 ± 0.8) L/(min ·m2)] and P-CI [(6.2 ± 1.5) L/(min·m2) vs.(5.4 ± 1.2) L/ (min· m2)] were significantly higher,there were statistical differences (P ＜ 0.05).The correlation analysis showed that there was positive correlation between A-CI and P-CI at T1-6 (r =0.931,0.955,0.945,0.892,0.960,0.913 ; P ＜ 0.05).Bland-Altman analysis showed poor agreement between CI measured with the two methods.Conclusion CI value obtained with APCO agrees poorly with that obtained with PAC during cesarean section in parents with congenital heart disease combined with severe pulmonary hypertension,but agrees well in monitoring the changing trend of CI.

Objective:To evaluate the feasibility of using polyethyleneimine(PEI) coated magnetic iron oxide nanoparticles(polyMAG-1000) as gene vectors. Methods:The surface characteristies of the nanoparticles were observed with scan electronical microscope.The ability of the nanoparticles to combine and protect DNA were investigated at different PH after the polyMAG-1000 and DNA were combined at different ratio.The nanoparticles were tested as a gene vectors through transfection models in vitro. Results: Under scan electronical microscope, the diameter of the nanoparticles was about 100 nm. The nanoparticles could bind and condense DNA under acidic ,neutral and alkaline pH conditions. The nanoparticles could transfer gene into cell and express green fluorescent protein(GFP).The efficiency of transfection was the highest when the ratio of the nanoparticles and DNA was 1 ∶ 1(v ∶ w).The difference was marked in the transfection efficiency when magnetic field was added or not. Conclusion: The magnetic iron oxide nanoparticles coated with PEI may be potentially used as gene vectors.

Animals ; Feasibility Studies ; Female ; Mice ; Mice, Inbred BALB C ; Plethysmography ; methods ; Tidal Volume ; physiology

Objective To develop a reliable scale for evaluating medication compliance among patients with chronic diseases in China.Methods An initial item pool was generated by literature review,based on the definition of compliance generally accepted in China.The items were then subjected to item selections by using item answer distribution and other four methods,which resulted in a primary scale with 16 items.The reliability and validity of this scale was examined.Results Common factors extracted by factor analysis were well explained,there being a close correspondence between the scale construction and the theoretical construction. Convergent validity with the patients' self-ratings on medication compliance ranged from 0.55 to 0.59,and the correlation coefficient with the score of Morisky questionnaire was 0.58.The Cronbach ?,0 and ? coefficients were 0.717,0.751,0.893 respectively,and test-retest reliability was 0.95.Conclusion The newly developed scale appears reliable and may be a useful tool for measuring drug compliance among patients with chronic diseases,but there are still areas where further improvements may be needed.

Adult ; Diagnosis, Differential ; Female ; Gastrectomy ; methods ; Gastrointestinal Stromal Tumors ; metabolism ; pathology ; Humans ; Ki-1 Antigen ; metabolism ; Leukocyte Common Antigens ; metabolism ; Leukosialin ; metabolism ; Lymphoma, Large-Cell, Anaplastic ; metabolism ; pathology ; surgery ; Melanoma ; metabolism ; pathology ; Mucin-1 ; metabolism ; Receptor Protein-Tyrosine Kinases ; metabolism ; Stomach Neoplasms ; metabolism ; pathology ; surgery

Corneal transplantation has been considered a primary method for treatment of keratopathy. Corneal transptantation would bring immunological rejection although cornea belongs to an immune-privileged tissue owing to no vessels and lymphatic vessels. Immunological rejection is highly likely to occur in keratopathy patients who undergo large sizes of corneal transplantation or present with newly formed vessels in the center of implant. Many patients have to replace other implants because of immunological rejection. But severer immunological rejection caused by several corneal transplantations as well as rare donor source can not satisfy patients' requirement. Therefore, much attention has been paid to studies regarding drugs for immunologic protection following surgery. There have been many clinical studies confirming that the principle drugs against immunologic rejection, such as glucocorticoid and ciclosporin A, can not acquire satisfactory curative effects and concomitantly bring many adverse reactions. For this reason, many new immunosuppressive agents should be investigated. The method of drug combination has become an important research project for keratopathy physicians.