Objective To explore the influence of naloxone hydrochloride injection on levels of IL-6,IL-8,IL-18 and TNF-α in patients with COPD complicated with respiratory failure.Methods A total of 60 COPD patients with respiratory failure were randomly divided into control group (n =30) and experimental group (n =30).The control group was given conventional medical treatment,while the experimental group was treated with naloxone on the basis of the control group.Results After treatment,the inflammatory factors IL-6,IL-8,IL-18,TNF-and blood gas indicators p(CO2) in the experimental group were significantly lower than the control group (P ＜ 0.05),and blood gas indicators p (O2) and pH were significantly higher than the control group (P ＜ O.05).The pulmonary function indexes FVC,FEV1 ％ and PEF in the experimental group were significantly higher than those in the control group (P ＜ 0.05).The hospital stay in the experimental group was significantly shorter than the control group (P ＜ 0.05).The total effective rate of the experimental group was significantly higher than that of the control group (P ＜ 0.05).Conclusion Naloxone hydrochloride injection is effective in the treatment of COPD patients with respiratory failure.

Objective To explore the influence of naloxone hydrochloride injection on levels of IL-6,IL-8,IL-18 and TNF-α in patients with COPD complicated with respiratory failure.Methods A total of 60 COPD patients with respiratory failure were randomly divided into control group (n =30) and experimental group (n =30).The control group was given conventional medical treatment,while the experimental group was treated with naloxone on the basis of the control group.Results After treatment,the inflammatory factors IL-6,IL-8,IL-18,TNF-and blood gas indicators p(CO2) in the experimental group were significantly lower than the control group (P ＜ 0.05),and blood gas indicators p (O2) and pH were significantly higher than the control group (P ＜ O.05).The pulmonary function indexes FVC,FEV1 ％ and PEF in the experimental group were significantly higher than those in the control group (P ＜ 0.05).The hospital stay in the experimental group was significantly shorter than the control group (P ＜ 0.05).The total effective rate of the experimental group was significantly higher than that of the control group (P ＜ 0.05).Conclusion Naloxone hydrochloride injection is effective in the treatment of COPD patients with respiratory failure.

Objective To explore the CT and pathologic manifestations of the pulmonary chondroma,to improve the diagnostic accuracy and reduce the misdiagnosis.Methods The CT data of 6 patients with pulmonary chondroma proved by pathology were analyzed retrospectively.Results All 6 cases were solitary,3 cases occurred in the right lung and the other 3 cases occurred in the left lung.The diameter of the lesions ranged from 1.0 cm to 5.1 cm.2 cases showed lobulated shape,4 cases showed round shape.4 cases showed circumscribed margin,2 cases showed blurrmed margin.Furthermore,calcification was detected in 1 case.Conclusion Pulmonary chondroma has some characteristic CT features,including vascular border sign and begonia sign.However,it should be differentiated from pulmonary hamartoma,peripheral lung cancer and sclerosing pneumocytoma.

AIM: To investigate the expression and significance of MAPK-interacting kinase-2 ( Mnk2 ) and eukaryotic initiation factor 4E ( eIF4E) in the patients with resected esophageal squamous cell carcinoma ( ESCC ). METHODS:The protein expression of Mnk2 and eIF4E in ESCC tissues (98 cases) and normal esophageal tissues (20 cases) were assessed by immunohistochemistry (IHC), and their correlations with clinicopathological features were statisti-cally analyzed.RESULTS:The over-expression rate of Mnk2 and eIF4E was 68.4%(67/98) and 61.2%(60/98), re-spectively.The expression of Mnk2 had a positive correlation with eIF4E (P<0.05).Clinicopathologic analysis showed that Mnk2 expression was significantly correlated with T classification ( P<0.05 ) and clinical stage ( P<0.05 ) .CON-CLUSION:The over-expression of Mnk2 was significantly related to the tumor invasive depth , TNM stages and expression of eIF4E in ESCC.Expression of Mnk2 and eIF4E may have a cooperative formation mechanism in the development of ESCC.

Objective To construct a model of Graves'disease ( GD ) with ( or ) Graves'ophthalmopathy ( GO) in BALB/c mice by immunization with pcDNA3. 1/TSHR289. Methods pcDNA3. 1/TSHR289 was injected into the bilateral gastrocnemius muscle of 35 model mice and electroporation was immediately performed. 10 control mice were injected with sterile saline and electroporated, while 5 blank mice were injected with sterile saline only. Each group of mice was immunized at 1, 4, 7, and 10 weeks, respectively. Serum total T4 , TSH, TSAb, and TSBAb were measured before immunization, 2 weeks after each immunization, as well as 5 and 8 weeks after the last immunization. CT scan was used to evaluate the morphological changes of the eyes of the mice.99m TcO4- imaging was used to measure the thyroid uptake function, and the pathological changes of the thyroid and orbital tissues were evaluated by HE staining. Results After the 2nd time immunization, the serum concentrations of TT4 , TSAb and TSBAb in GD mice were significantly higher than those of control and blank groups( F=13.781, 31.435, 36.112, P<0.01, respectively).The TSH continued to be significantly lower than that of control and blank groups(F=13.966, P<0.01) . After the 4th time immunizations, the ability of uptaking99m TcO4- in GD mice thyroid was significantly enhanced compared with the control group. The thyroid goiter with a large amount of lymphocyte infiltration, and the thyroid follicle was thin. CT scan of GO mice showed thickening and swelling of the extraocular muscles, and no abnormalities in tendon and muscle attachment points. HE staining showed thickening of extraocular muscle fibers, lymphocyte infiltration of extraocular muscles and orbital tissue, increased hyaluronic acid, and infiltration of fat cells. Conclusion GD or GO model can be successfully induced by multiple intramuscular injection of pcDNA3.1/TSHR289 in BALB/c mice.

Objective This study aimed to evaluate the thickening of sinus membrane,which is also named Sch-neiderian membrane(SM),in patients and its relationship with periapical lesions(PAL)in the posterior maxillary region to provide reference for the prevention and treatment of odontogenic maxillary sinusitis.Methods A retrospective anal-ysis was conducted on 554 cone beam computed tomography(CBCT)imaging data of maxillary sinuses from 301 pa-tients who met the inclusion criteria to determine the correlation between PAL and SM thickening in the posterior maxil-lary region.Cases of pathological SM were recorded and classified on the basis of the degree and type of SM thickening.The correlation between SM thickening and the diameter of PAL,the relationship between the upper edge of PAL and the maxillary sinus floor,and its relationship with whether affected teeth with PAL undergo root canal treat-ment were evaluated.Results The detection rate of SM thickening in patients with PAL was significantly higher than in those without PAL,so PAL was correlated with SM thickening.Analysis on the correlation between PAL detection indi-cators and SM thickening degree showed that SM thickening degree was positively correlated with PAL diameter(cone beam computed tomography-periapical index)and not correlated with the three spread effects between the upper edge of PAL and the maxillary sinus floor,as well as whether the teeth with PAL undergo root canal treatment.The correlation analysis between PAL detection indicators and SM thickening types showed that whether the teeth with PAL undergo root canal treatment was not correlated with SM thickening types,and the diameter of PAL,the three spread effects be-tween the upper edge of PAL,and the maxillary sinus floor were not correlated with SM thickening types.Conclusion The PAL of posterior maxillary teeth is closely related to SM thickening,and the diameter of PAL is positively correlated with the degree of SM thickening.Patients with PAL who have undergone root canal treatment often exhibit SM polyp thickening.In addition,the relationship between the upper edge of PAL and the maxillary sinus floor does not affect the possibility of SM development.