Objective To explore the diagnosis, surgical treatment and prognosis of thymoma complicated with myasthenia gravis(MG). Methods A retrospective analysis was performed in 33 thymoma patients with MG, who underwent surgical treatment. Results The total effective rate of operation was 75.8%, and the 5 and 10 years survival rates of the patients after operation were 85% and 78.7%, respectively. According to the Masaoka staging system, the 5 and 10 years survival rates of stages I and II were obviously higher than those of stages III and IV (P

A red pigmant, procligiosin, have been isolated from the metabolite of germ pseudomonas sp. collected from the Dayawan Bay. Its structure was established on the basis of the spectral method.

Objective To explore the clinical efficacy and safety of ropivacaine for combined spinal-epidural anesthesia(CSE).Methods 40 patients,who intended to undergo elective lower limb or perineum surgery,were randomly divided into two groups,each with 20 cases,ropivacaine were used in treatment group,while bupivacaine in control group the differences of feeling,motor block and recovery time,as well as their side effect in the two groups were compared.Results The maximum of spread time of anesthesia and the recovery time,and side effect in treatment group were similar to those in control group.The onset time of motor block and the peak time of motor block were longer in treatment group than that in control group,the maximum modified Bromage scale in treatment group was lower than that in control group(P

Objective To investigate the effects of cinobufacini on TGF-β1-induced epithelial-to-mesenchymal transition of human colorectal carcinoma cells in vitro.Methods The cultured colorectal carcinoma cell line(SW480) was divided into the control group,TGF-β1 (10 ng/mL) individual treatment group and co-treatment groups with TGF-β1 (10 ng/mL) + cinobufacini (2.5,5,10,20,40,80 mg/mL),which were cultured in vitro for 48 h.The proliferation of the cells were measured by CCK8 assay.The morphological changes were observed by inverted phase contrast microscope.The ability of cell invasion and migration was detected by Transwell assay.The mRNA and protein expressions of E-cadherin and Vimentin were detected with QRT-PCR and Western Blot.Results (1)Compared with the TGF-β1 (10 ng/mL) individual treatment group,TGF-β1 (10 ng/mL) + cinobufacini (10,20,40,80 mg/mL) co-treatment groups significantly had significantly proliferation inhibitory effect on SW480 (P＜0.05).(2) Compared with the normal control group,TGF-β1 individual treatment group and TGF-β1 (10 ng/mL) + cinobufacini(2.5 mg/mL) group exhibited classical mesenchymal phenotype,while the TGF-β1 (10 ng/mL) + cinobufacini (5 mg/mL) co-treatment group showed classical epithelial phenotype.(3) The ability of invasion and migration in the TGF-β1(10 ng/mL)+ cinobufacini(2.5,5 mg/mL) co-treatment group were significantly weakened compared with the TGF-β1 individual treatment group (P＜0.01).(4) QRT-PCR and Western Blot results indicated that compared with the normal control group,the Vimentin expression in the in the TGF-β1 individual treatment group was significantly increased and the E-cadherin expression was significantly decreased.Furthermore,compared with the TGF-β1 individual treatment group and control group,the Vimentin expression level in the TGF-β1 (10 ng/mL) + cinobufacini (2.5,5 mg/mL) groups was significantly decreased and E-cadherin expression was significantly increased.Conclusion Cinobufacini can inhibit TGF-β1-induced cell proliferation in human colorectal carcinoma SW480 cells,and its mechanism may be related with promoting E-cadherin expression increase,meanwhile decreasing the vimentin expression,thus inhibiting the EMT process induced by TGF-β1.

Objective To study the inhibition of lung cancer cells of primary culture and A549 cell line on the proliferation of tumor-infiltrating lymphocytes(TIL) in vitro and its clinical implications.Methods Human lung cancer cells and TILs were isolated from 8 cases of primary lung cancer and cultured.The inhibition of isolated human cancer cells and A549 cells to TILs was detected by MTT method.Results Lung cancer cells of primary culture and A549 cells can kill TILs to various degrees.Conclusion Inhibition of lung cancer cells to TIL may be one of the mechanisms of immune escapes.

Objective To observe the effects of recombinant human brain natriuretic peptide on the plasma endotoxin and systemic inflammatory response in patients undergoing cardiac valve replacement surgery during cardiopulmonary bypass (CPB) and to explore its mechanism.Methods 32 patients with elective heart valve replacement surgery during cardiopulmonary bypass were divided into a control group and a treatment group randomly.The patients of treatment group were recievel rhBN (1.5 μg · kg-1 · min-1 bolus intravenous injection before aortic cross-clamping followed by 0.0075 μg · kg-1 · min-1 for 24 hours),while the patients of control group received the same volume of 0.9％ sodium chloride.The plasma levels of endothelin -1 ( ET-1 ),diamine oxidase(DAO),lipopolysaccharide ( LPS),tumor necrosis factor-α (TNF-α) before skin incision ( T1 ),the end of CPB ( T2 ),4 h after the end of CPB ( T3 ),8 h after the end of CPB (T4),24h after the end of CPB (T5) respectively.Results Before skin incision ( T1 ),plasma ET-1,DAO,LPS,TNF-α of two group patients showed no significant difference ( P ＞ 0.05 ) ; At each time point after the end of CPB ( T2,T3,T4,T5 ) Plasma DAO,LPS,TNF-α levels of two groups patients were significantly higher than before skin incision ( T1 ) levels ( P ＜ 0.01 ).There was no significant difference of the plasma levels of ET-1 between T5 and T1 in treatment group patients ( P =0.24).At each time point after the end of CPB ( T2,T3,T4,T5 ),treatment group patients'plasma ET-1,DAO,LPS,TNF-α levels were significantly lower than the control group respectively (P ＜0.01 ).The increase in blood ET-1 was highly positive correlated with the increase in blood DAO (r=0.51,P ＜0.01 ).The increase in blood DAO was highly positive correlated with the increase in blood LPS (r =0.77,P ＜ 0.01 ).The increase in blood LPS was significantly positive correlated with the increase in blood TNF-α ( r =0.48,P ＜0.01 ).Conclusion Recombinant human brain natriuretic peptide can reduce gastrointestinal vasoconstriction,improve gastrointestinal mucosal perfusion and oxygenation,protect the gastrointestinal mucosal barrier function,preventing intestinal endotoxemia Shift,reduce plasma endotoxin levels and reduce systemic inflammatory response by inhibiting the release of ET-1 during CPB.

Objective To determine whether autologous skeletal myoblasts implantation improves the cardiac function after myocardial infarction and the possible mechanism. Methods Myocardial infarction was induced by ligation of the left anterior descending coronary artery in rabbits. At 2 weeks, 1. 34 × 107 to 1.75 × 107 autologous skeletal myoblasts were infused into the lesion via direct intramuscular injection. In the control group, the postinfarction hearts were infused with medium alone. Buxco invasive cardiac function testing and histopathological examination were utilized to evaluate the functional and structural changes in the myocardium 4 weeks later. Results Both maximum rising rate of the left intraventricular pressure [+dp/dtmax,( 1 217.77 +89.91 )mmHg/s vs. (897.83 ±70.04) mmHg/s] and maximum falling rate of the left intraventricular pressure [- dp/dtmax,( -1174.58 ± 91.5 ) mmHg/s vs. ( - 753.67 ± 69.66 ) mmHg/s] were improved in the myoblast transplanted group compared with medium infusion group. The positive desmin immunostaining skeletal myofibers in the myocardium were found throughout the infracted areas and the border zone. Conclusion Autologous skeletal myoblasts can establish muscle tissue when transplanted into postinfarction hearts, and this mucle can treat myocardiac infarction effectively.

Objective To investigate and evaluate the changes of T lymphocytes and red cell immunity of peripheral blood in patients with primary hepatocyte carcinoma (PHCC) after radiofrequency ablation(RFA) treatment. Methods The pre- and post- RFA(3d,7d,14d) peripheral blood T lymphocyte subsets(T3,T4,T8,T4/T8) and red cell immunity (RBC C3 receptor flower and RBC-immuocomplex formation rate) were investigated in 120 patients with PHCC treated by RFA. Results On 7d, 14d after RFA, T3, T4 lymphocytes and T4/T8 were higher than those on preoperative day significantly(P

Objective To identify the different proteins of pancreatic cancer with and without diabetes mellitus (DM) ,so as to provide some clues for understanding the molecular mechanisms of DM in the development .of pancreatic cancer. Methods Samples were divided into pancreatic cancer with or without DM and their normal adjacent tissue with 5 each. The protein expression profiles were analyzed using 2-DE in combination with MALDI-TOF/TOF MS/MS. Western blot was used to verify the expression of a candidate protein CapG. Results Seven proteins were obviously up-regulated in pancreatic cancer with DM(P＜0.05). These proteins were involved in cell motility, metabolism, oxidative stress, etc. Additionally, CapG implicated a functional contribution of cancer invasion and metastasis. Conclusion The results also provide evidence to support the hypothesis that DM plays an important role in the development of pancreatic cancer.

Objective To compare transdermal penetration of triamcinolone acetonide liposparticles (TAA-LPPs) and TAA-Ethosomes in vitro. Methods The TAA-LPPs and TAA-Ethosomes were produced and the morphology was observed by transmission electron microscope,particle size was detected by laser particle analyzer. The percutaneous permeability in vitro was tested by modified Franz diffusion pools. The amount of penetrated triamcinolone acetonide and the retention in the skin were de-termined by HPLC. Results The shape of TAA-LPPs and TAA-Ethosomes was almost spherical with mean diameter of (99. 9±1. 3) and (105±1. 4) nm, respectively. The cumulative transdermal penetration of TAA-LPPs, TAA-Ethosomess and TAA suspension was (53. 59±4. 40),(87. 03±4. 87),and (30. 54±8. 61) μg·(cm2 ) -1 , respectively . The drug retention in the skin after 32 h was (1. 02±0. 13), (0. 62±0. 08), (0. 55±0. 17) μg·(cm2 ) -1 , respectively. Conclusion TAA-LPPs is better for transdermal administration of triamcinolone acetonide by reducing systemic absorption of the drug.