Adult ; Bronchoalveolar Lavage ; Bronchoalveolar Lavage Fluid ; cytology ; Humans ; Macrophages ; pathology ; Male ; Middle Aged ; Pneumoconiosis ; pathology ; therapy

Objective To investigate the in vitro inhibitory effect of LIGHT on human esophageal carcinoma cells. Methods LIGHT Fc expression vector was transfected into human esophageal squamous carcinoma cell line, Eca109. The inhibitory effect of LIGHT gene on cell growth was detected by MTT and cell growth curve. The expressions of LT?R and HVEM were detected by RT PCR. Results Expression of LIGHT Fc gene could inhibit Eca109 cell proliferation. The growth curve of Eca109/LIGHT was significantly lower than that of the control group in the culture medium containing 1% FCS. MTT test showed that there was significant difference in cell viability between Eca109/LIGHT and the control group ( P

Objective To construct the bicistronic retroviral vectors containing GFP gene and human survivin gene(wildtype and T34A mutant). Methods Survivin fragments were amplified from eukaryotic expression vectors by PCR, then cloned into pMIG retroviral vectors. The constructed recombinant was identified by double digestion with restriction enzymes. The constructed retroviral vectors was transfected into Phoenix E package cells under mediation of liposome. The expression of mRNA was examined by RT-PCR and the transcription of gene was determined by FACS analysis of GFP. Results The target fragments were successfully bound to pMIG vector. After the vectors were transfected into NIH3T3 cells, the expression of mRNA was confirmed by RT-PCR and the expression of GFP was confirmed by FACS analysis. Conclusion Human survivin gene wildtype and T34A mutant retroviral vectors have been constructed successfully, which can provide strong molecular tools for further studies and a novel approach for selective cancer gene therapy.

Objective To determine how the pulmonary ligament affects the helical CT appearances of the lower thoracic disease on the basis of the anatomic findings. Methods Four cadavers were cut transversely, with the section thickness of 11.3-13.4 mm. 57 patients with the lower thoracic disease were scanned using Somatom Plus 4, with administration of intravenous contrast material. The correlation of the anatomic findings of the pulmonary ligament and the helical CT appearances of the lower thoracic disease was evaluated. Results On cadaver sections, the right pulmonary ligament attached the lower lobe of the right lung to the esophagus, while the left ligament attached the lower lobe of the left lung to the esophagus or the descending aorta. In 40 pleural effusion and 7 pneumothorax cases, the pulmonary ligament tethered the medial aspect of the collapsed lower lobe and limited the shift of the lower lobe. In 40 pleural effusions, the ligament divided the medial pleural space into an anterior and a posterior compartment. The ligament showed thickness due to the invasion of the lesions of lower lobe including 7 tumors and 3 inflammatory diseases. Conclusion The pulmonary ligament can affect the helical CT appearances of the lower thoracic disease, such as lobe collapse, pleural effusion and pneumothorax; while the intraparenchymal and mediastinal abnormality can extend into the pulmonary ligament.

Adenoma ; metabolism ; pathology ; surgery ; Humans ; Keratin-7 ; metabolism ; Kidney Neoplasms ; metabolism ; pathology ; surgery ; Kidney Transplantation ; Living Donors ; Male ; Mucin-1 ; metabolism ; Young Adult

Objective To explore the role of nucleotide-binding oligomerization domain receptor protein 3 (NLRP3) inflammasome in the pathogenesis of dementia. Methods 16 patients with with Alzheimer's disease (AD), 22 patients with vascular dementia (VD) and 20 healthy persons with similar age were detected the level of NLRP3 mRNA with RT-PCR in peripheral blood mononuclear cells January, 2014 to October, 2015. The serum level of interleukin (IL)-1βand IL-18 were detected with ELISA. The total number of white blood cells (WBC) and serum total calcium were collected. Single factor correlation analysis was performed between NLRP3mRNA and IL-1β, or IL-18, or WBC, or calcium concentration. Results The levels of NLRP3 mRNA ranged from high to low were as in AD group>VD group>the healthy group (q>11.48, P<0.05). The serum level of IL-1βwas higher in AD group than in the the healthy group (q=16.74, P<0.05), but not significantly different between VD group and the healthy group, nor between VD group and AD group (P<0.05). There was no signifi-cant difference about IL-18 among AD group, VD group and the healthy group (P<0.05). NLRP3 mRNA was positively correlated with the serum levels of IL-1β(r=0.64) and calcium (r=0.58) in AD group. There was no correlation between NLRP3 mRNA and IL-18 or WBC (P<0.05). Conclusion The expression of NLRP3 inflammasome may be related with the pathogenesis of AD, but little impact on the pathogene-sis of VD.

Objective To study the effect of intra-pulmonary arterial anti-tumor necrosis factor-α antibody(TNF-α Ab) on ultra-structure of lung after cardiopulmonary bypass (CPB).Methods Forty New Zealand rabbits were selected and randomly divided into four groups:group Ⅰ-Ⅲ underwent CPB; group Ⅳ only received open chest operation.In the group Ⅱ,rabbit TNF-α Ab(27 ng/kg) was dropped into the pulmonary artery when the aorta was clamped and CPB continued 30 minute.Pulmonary arterial perfusion was given to the group I instead.Blood TNF-α and neutrophils count from right and left atrium and oxygenation index in the four groups were determined perioperatively.Lung water content,TNF-αmessenger RNA,Bcl-2 protein,Bax protein,Bcl-2/Bax,apoptosis index and pathomorphological change were measured in the lung tissues.Results TNF-α Ab can restrain leukocyte accumulation and reduce releasing of TNF-α in the lung and improve oxygenation index.Moreover,TNF-α Ab can reduce the expression of Bax on alveolar epithelial cells and alleviate the decreasing of the expression of Bcl-2.It can also reduce the occurrence of apoptosis and attenuate pathomorphological changes in the lung tissue.Conclusion Intra-pulmonary arterial antitumor necrosis factor-α antibody markedly lessens the injury of inflammatory reaction and ultra-structure of lung after CPB via Bcl-2/Bax pathway.

Objective To probe into the epidemic feature, pa tho genic spectrum and main risk factors of diarrhea during the field training in ar my. Methods Detection of morbidity,investigation of risk factor s and detachment of pathogen were performed. Results The diarrh eal incidence rate of army of field training was 4.36%(106/2 433), which was higher than that of hold garrison(0.98%, 2/204). The incidence rate of officers was lower than that of soldiers. Two incidence peaks concerned with the army motion course were foun d. The detection rate of lapactic bacteria from fecal of patients was 63.1%(65/1 03) and most of them were ETEC, followed by the plesiomonas shigelloides. Se ven ind ividual factors concerned with diarrhea disease were found with logistic analysi s, including dr inking unboiled water, going out to eating and so on. Conclusions Incidence of diarrhea in the army increased obviously during the field training and the chief pathogen are ETEC and plesiomonas shigelloides, at the same time, t he occurrence of diarrhea is related with many individual factors.

Objective To explore the reliability and validity of the simplified Chinese version of the Oswestry disability index (SCODI) and the curative effect of community-based rehabilitation for patients with lumbar disc herniation (LDH). Methods 165 patients with LDH received community-based rehabilitation according to the severity of their LDH. Before treatment and after 3 months, the SCODI, the Roland-Morris disability questionnaire (RMDQ) and a visual analogue scale (VAS) were used to evaluate the effects. The reliability and validity of the SCODI was thus tested. The reliability analysis included internal consistency as measured by Cronbach's coefficient,and test-retest reliability as measured by an interclass correlation coefficient (ICC). The validity analysis used Spearman's correlation coefficient (for concurrent efficacy validity) and factor analysis (for construct validity). The correlation between SCODI, RMDQ and VAS results was analyzed. Results There was statistically significant functional improvement and better QOL in LDH patients after community-based rehabilitation. The SCODI showed good validity and reliability. There was significant correlation among the SCODI, RMDQ and VAS results. Conclusion Community-based rehabilitation can significantly alleviate symptoms for patients with LDH and improve their QOL.The SCODI is a reliable and valid instrument for measuring the curative effect of community-based rehabilitation on patients with LDH.

OBJECTIVE To investigate the postoperative morbility of deep fungal infections and the source and composition of the pathogenic fungi.METHODS Clinical data of 816 patients with post-operative deep fungal infections from Jul 2006 to Jun 2008 were reviewed and analyzed retrospectively.RESULTS The detectable rate of post-operative deep fungal infections was 24.82%,among which Candida albicans was the most common(65.69%),followed by C.tropicalis(10.57%);the rate of broad-spectrum antibiotic application in peri-operation was 96.45%;the infection site in the descending order was cardio-thorax,gastrointestinal tract,urinary tract,female reproductive system,blood and skeleton.CONCLUSIONS Operative trauma is an important factor that causes deep fungal infections in hospital,and is closely related to broad-spectrum antibiotic application.Positive prevention,timely diagnosis and effective treatment should be highly emphasized when dealing with post-operative deep fungal infections.