Aged ; Coal Mining ; Humans ; Male ; Pneumoconiosis ; rehabilitation ; Positive-Pressure Respiration ; methods

Data Collection ; methods ; Metabolomics ; methods

AIM: To evaluate the clinical efficacy and safety of Qili Qiangxin Capsule(Radix Astragali,Radix Aconiti lateralis praeparata,Radix et Rhizoma Salviae miltiorrhizae,Radix et Rhizoma Ginseng,Semen Lepidii,Semen Descurainiae,Flos Carthami,Pericarpium Citri reticulatae,Rhizoma Alismatis,Cortex Periplocae,Rhizoma Polygonati odorati,Ramulus Cinnamomi) with chronic heart failure(CHF).METHODS: Seven randomized controlled trials were reviewed.RESULTS: The meta-analysis indicated that the treatment group of Qili Qiangxin Capsule could decrease the cardiac functional grading of NYHA with 1.21 of the relative risk,and 95% confidence interval(CI) from 1.08 to 1.36;increase 6 minute walking distance with the weighted mean difference(WMD) was 37.39,and 95% confidence interval was from 22.58 to 52.20;raise left ventricular ejection fraction(WMD = 3.97[2.09,5.85]),decrease the left ventricular end-diastolic diameter(WMD = 2.81[1.41,4.22]),lower the level of B-type natriuretic peptide(WMD = 118.00[4.44,231.56]) and N-terminal pro-brain natriuretic peptide(WMD = 476.90[371.26,582.54]) in blood plasma and drop the score of Minnesota living with heart failure questionnaire(WMD =8.00[3.48,12.52]),but Qili Qiangxin Capsule for reduction in left ventricular end-diastolic volume,left ventricular end-systolic volume,heart rate and blood pressure also need to be confirmed.Besides,individual ca-ses occurred adverse reactions like dry cough,epigastric discomfort,gastric distention.However,It could be tolerated and hadn't significant statistical difference with comparison to control group.CONCLUSION: Qili Qiangxin Capsule is effective and safe for the patients of chronic heart failure in improving the heart function and living quality.

Cytomegalovirus (CMV) retinitis (CMVR) is a common opportunistic infection of the eye after allogeneic hematopoietic stem cell transplantation in patients with hematological diseases. It often occurs within 3 months after the operation, with CMV activation and high blood CMV peaks. It often occurs on patients with long-term CMV viremia, human leukocyte antigen incompatible transplantation, unrelated donor transplantation, haploid transplantation, childhood hematopoietic stem cell transplantation, delayed lymphocyte engraftment, acute and chronic graft-versus-host disease after surgery. The visual prognosis of patients is related to the area of CMVR lesions on the retina, the number of quadrants involved, whether the macula is involved, and the CMV load of the vitreous body is involved, and it is not related to whether the Epstein-Barr virus infection is combined with blood and vitreous humor. The incidence of CMVR is increasing year by year. It is helpful that paying attention to systemic risk factors and epidemiology can provide more effective guidance for ophthalmologists during diagnosis and treatment, help patients improve the prognosis of vision, and reduce or even avoid the occurrence of blindness caused by CMVR.

Objective To compare the effect of four-in-one teaching method and traditional teaching method in clinical clerkship teaching in the department of obstetrics and gynecology. Methods Totally 70 clinical probationer were enrolled(35 from 2007 grade were taken as control group and 35 from 2008 grade were taken as experiment group ). Four-in-one teaching method and traditional teaching method were respectively in experiment group and control group. Examination score and clinical skill re-sults were analyzed by t test and satisfaction degree was analyzed byX2 test. P<0.05 signifies statistical sig-nificances . Results Examination score of experiment group and control group were 86 . 9 ± 7 . 7 and 76.5 ±8.7 respectively with statistically significant differences(P=0.000). Clinical skill score of experi-ment group and control group were 87.6±6.9 and 75.9±7.5 respectively with statistically significant dif-ferences(P=0.000). Each questionnaire index was significantly higher in experiment group than in con-trol group with statistically significant differences(P=0.000). Conclusions Four-in-one teaching method can make students understand theoretical knowledge and master obstetrics and gynecology basic clinical skills,enhance interests in learning,build up self-confidence and establish preliminary clinical thinking ability and innovation ability which will lay a solid foundation for future clinical and research practice.

ObjectiveTo observe the effect of rapamycin on the proliferation and cell cycle of prostate cancer cell lines PC3,and to investigate the mechanism that it inhibits the growth and metastasis of prostate cancer cells.MethodsPC3 cells were cultured in vitro,and treated with different concentrations (10,25ng/ml) of cycle raparnycine.MTT was used to measure the change of proliferation of PC3 cells.Flow cytometry was used to measure the changes of cell cycle and apoptosis of PC3 cells.Nude mice were used to detect the effect of rapamycin on metastasis.ResultsThe proliferation of PC3 cells was significantly inhibited by rapamycin,and a time- and concentration-dependent relationship was shown,the inhibited rate was(42.23 ± 0.78 ) ％ after 36 h in the group of 25 ng/ml ( P ＜ 0.05 ).Flow cytometry analysis showed rapamycin significantly inhibited the cell cycle,prompted the apoptosis,and increased the number of cells in G0/G1 phase at 36 h with a rate of cell staying at Go/G1 [ (92.17 ± 0.69 ) ％ ] ( P ＜ 0.05 ).The weight of tumors in nude mice in the control group was significantly greater than that in RPM group[ (3.41± 0.28)g vs ( 1.19 ± 0.23 )g] ( P＜ 0.05 ),and metastatic sites of the lung and liver in the control group were significantly mote than the RPM group [ 100％ (7/7) vs 14.29％ ( 1/7 ) ] ( P ＜ 0.05 ).Conclusions Rapamycin significantly inhibits the proliferation and metastasis of osteosarcoma.The rapamycin-based regimen is valuable for clinical application.

Objective To analyze the perioperative clinical character of the severe neurological complications in intracranial aneurism treated with stent-assisted coiling(SAC). Methods 203 cases of intracranial aneurysms patients treated by SAC were enrolled retrospectively(ruptured aneurysm group 45 cases and un-ruptured,aneurysm group 158 cases)and the perioperative clinical character of the serious neurological complications(11 cases)was further analyzed. Results The total rate of serious neurological complication was 5. 4%,11 cases of patients with 13 aneurysms got 13 stents. In the ruptured aneurysm group, 5 cases(11. 1%)suffered severe neurological complications,including intraoperative bleeding in one case, postoperative stent-related ischemia in one case,both 2. 2% . Postoperative bleeding 2 cases(4. 4%),and one case of bleeding during anesthesia induced stage(2. 2%). In the unruptured aneurysm group,intraoperative bleeding in three cases,and postoperative stent-related ischemia in three cases,both 1. 9% . No bleeding case during anesthesia induced stage or postoperative period. Although active rescue treatments were performed, 8 patients eventually died,and the total mortality rate was 3. 9% . Conclusion Intracranial aneurysms patients following SAC treatment may suffer from bleeding,ischemia,severe neurological complications, severe disability,and even die. So,we have to strengthen perioperative management.

Objective: To observe blood levels of cystetine C (Cys C) and superoxide dismutase (SOD) in patients with obstructive sleep apnea syndromes (OSAS) related hypertension (HP). Methods: A total of 102 HP patients received polysomgography (PSG) in our hospital from 2013-01 to 2013-12 were studied. According to apnea hypopnea index (AHI), the patients were divided into 2 groups: OSAS with HP (OH) group, n=55 patients with AHI≥5 and HP group,n=47 patients with AHI<5; in addition, there was a Control group,n=45 normal subjects with PSG examination at the same period. The general conditions, biochemical and sleep parameters were studied, the differences among 3 groups were analyzed by SPSS 17.0 software. Results: In OH group, HP group and Control group, blood levels of Cys C were (1.06 ± 0.27) mg/L, (0.91 ± 0.19) mg/L and (0.79 ± 0.32) mg/L respectively; SOD were (127.63 ± 63.19) U/mL, (149.14 ± 60.12) U/mL and (181.54 ± 59.37) U/mL respectively, allP<0.05. Based on clinical conditions, OH group was further divided into Mild, Moderate and Severe sub-groups, blood levels of Cys C and SOD were similar among different sub-groups,P>0.05. Conclusion: Blood levels of Cys C in OH and HP groups were higher than Control group, Cys C in OH group was higher than HP group; SOD levels in OH and HP groups were lower than Control group, SOD in OH group was lower than HP group. The relationships between Cys C, SOD and OH severity were unclear.

OBJECTIVETo prepare IL-2-anchored and tumor-derived exosomes vaccine, and investigate the antitumor efficiency of the special cytotoxic T-lymphocytes induced by Ex/GPI-IL-2.

METHODSTo construct pEGFP-N1-IL2gpi plasmid coding a fusion gene of a DNA oligo encoding GPI-anchor signal sequence attaching to human IL-2 cDNA. Then T24 cell lines stably expressing GPI-IL-2 proteins (T24/GPI-IL-2) were established. Ex/GPI-IL-2 were isolated and purified by ultrafiltration and sucrose gradient centrifugation, and the morphology and molecule markers were analyzed. The mixed lymphocyte reaction study and cytotoxic study were performed to determine the proliferative effect of T lymphocytes and the cytotoxicity induced by Ex/GPI-IL-2.

RESULTSThe pEGFP-N1-IL2gpi plasmid was successfully constructed, and cell lines stably expressing GPI-IL-2 fusion proteins were established. Ex/GPI-IL-2 were small vesicular and saucer-shaped in diameter of 30-90 nm, containing heat shock protein 70, intercellular adhesion molecule-1, MAGE-1 and GPI-IL-2. Ex/GPI-IL-2-pulsed could dendritic cells induce proliferation of T cells and cytotoxic immune response more efficiently (P<0.05).

CONCLUSIONSGPI-IL-2 gene-modified tumor cells can make the exosomes containing GPI-IL-2 with an increased anti-tumor effect. Our study provides a feasible approach for exosome-based tumor immunotherapy of bladder transitional cell tumors.

Cancer Vaccines ; immunology ; Carcinoma, Transitional Cell ; immunology ; metabolism ; pathology ; Cell Line, Tumor ; Cell Proliferation ; Exosomes ; genetics ; metabolism ; Glycosylphosphatidylinositols ; metabolism ; HSP70 Heat-Shock Proteins ; metabolism ; Humans ; Intercellular Adhesion Molecule-1 ; metabolism ; Interleukin-2 ; metabolism ; Melanoma-Specific Antigens ; metabolism ; Plasmids ; Recombinant Fusion Proteins ; metabolism ; T-Lymphocytes, Cytotoxic ; immunology ; Transfection ; Urinary Bladder Neoplasms ; immunology ; metabolism ; pathology

OBJECTIVETo establish a model of ER stress-induced apoptosis with tunicamycin and to examine whether Bim is dysregulated and its potential role in resistance of melanoma cells to apoptosis under endoplasmic reticulum (ER) stress.

METHODSA model of ER stress-induced apoptosis was established with tunicamycin. Apoptotic cells were quantitated using the annexin V/propidium iodide method by flow cytometry. Hoechst staining was also used to confirm the apoptotic cell death. Western blotting was used to measure the activation of caspase-3 and -9, and the expression of Bim, GRP78, CHOP, and Foxo1 at the protein level. The expression of Bim, CHOP and Foxo1 at the mRNA level was quantitated by qPCR. The siRNA technique was used to inhibit the expression of Bim.

RESULTSTreatment of the melanoma cells with tunicamycin did not induce significant apoptosis and activation of caspase cascade, whereas it caused marked activation of caspase-3 and -9, and apoptosis in HEK293 cells which were used as a control. With exposure to tunicamycin (3 µmol/L) for 12, 24, 36 hours the Bim protein levels were not increased in Mel-RM and MM200 cells. Its mRNA levels were 0.37 ± 0.05, 0.13 ± 0.02 and 0.02 ± 0.01 in Mel-RM cells, while 0.41 ± 0.06, 0.16 ± 0.04 and 0.21 ± 0.03 in MM200 cells, respectively. The expression of Bim mRNA was significantly reduced compared with that in the control groups of the two cell lines (P < 0.01). siRNA knockdown of Bim protected HEK293 cells against activation of caspase-3. The cell apoptosis of Bim siRNA group was (5.69 ± 0.38)%, significantly lower than that of the siRNA control group (40.32 ± 1.64)% and blank control group (35.46 ± 2.01)% (P < 0.01). In the melanoma cells after exposure to tunicamycin (3 µmol/L) for 6, 12, 24, and 36 hours the transcription factor CHOP at mRNA level were significantly increased and the expressions at protein level were also up-regulated. The expressions of another transcription factor Foxo1 at mRNA level significantly decreased and the expressions at protein level were down-regulated, too.

CONCLUSIONSThe lack of Bim up-regulation contributes to the resistance of melanoma cells to ER stress-induced apoptosis and may be a mechanism by which melanoma cells adapt to ER stress conditions. Transcription factors CHOP and Foxo1 may be responsible for the dysregulation of Bim in melanoma cells upon ER stress.

Apoptosis ; drug effects ; Apoptosis Regulatory Proteins ; genetics ; metabolism ; Bcl-2-Like Protein 11 ; Caspase 3 ; metabolism ; Caspase 9 ; metabolism ; Cell Line, Tumor ; Endoplasmic Reticulum Stress ; drug effects ; Forkhead Box Protein O1 ; Forkhead Transcription Factors ; genetics ; metabolism ; HEK293 Cells ; Heat-Shock Proteins ; metabolism ; Humans ; Melanoma ; genetics ; metabolism ; pathology ; Membrane Proteins ; genetics ; metabolism ; Proto-Oncogene Proteins ; genetics ; metabolism ; RNA, Messenger ; metabolism ; RNA, Small Interfering ; genetics ; Transcription Factor CHOP ; genetics ; metabolism ; Tunicamycin ; pharmacology