analysis on 103 cases of spontaneous pneumothorax patients between September, 2012 and December,2014. Then the patients were randomly divided into two groups according to the different therapies on pulmonary bulla, 52 in GIA surgical stapler group and 51 in ligature group. Comparison: The postoperative situations of the two groups.Results: The operation time and intraoperative bleeding volume of observation group are obvious less than control group(t=7.58,t=16.87;P<0.01), but oxygen saturation of observation group is obvious higher than control group(t=1.34,P<0.01). The operation fee of observation group is obvious higher than control group(t=38.26, P<0.01).2 cases of postoperative recurrence in observation group(3.84%), but 10 cases in control group(19.60%).The two recurrence rates have statistical significance(x2=4.77,P<0.05). The postoperative complications incidence is 5.77% in observation group,but 21.56% in control group.The two The postoperative complications incidences have statistical significance(x2=5.47,P<0.05).Conclusion: As opposed to ligature, under the therapy for spontaneous pneumothorax with GIA surgical stapler by thoracoscopy, the operation time is shorter, intraoperative bleeding volume is less, and recurrence rate is lower in 2 years. Ligature fits the sporadic pulmonary bulla patients.

OBJECTIVE:To improve the determination method of Xiao'er resuqing oral solution in Chinese Pharmacopeia(2005 edition).METHODS:HPLC method was used to determine the content of baicalin.The separation was performed on Agilent zorbax SB-C18(150 mm?4.6 mm,5 ?m) column with methanol-water-phosphoric acid(45:55:0.2) as the mobile phase at flow rate of 1.0 mL?min-1.The detection wavelength was set at 276 nm.RESULTS:The linear range of baicalin was 0.5～100 ?g?mL-1(r=0.999 9) with an average recovery of 99.83%(RSD=0.99%,n=9).CONCLUSION:The method is rapid,convenient and accurate,and can be used as reference evidence for the content determination of Xiao'er resuqing oral solution in Chinese Pharmacopoeia(2005 edition).

Purpose:To evaluate the efficiency of mediastinal lymph nodes dissection (MLND) and to determine a reasonable extent of dissection in the treatment of patients with clinical stageⅠ A non small cell lung carcinoma (NSCLC). Methods:From January 1988 to June 1995, one hundred and forty seven patients with clinical stageⅠ A NSCLC were treated by surgery. All the patients were divided into three groups according to the type of procedure, that is, resection without MLND, resection with selective MLND and systematic MLND. According to their clinical characteristics patients in each group were matched and assigned once again, and 93 cases were enrolled. Survival rates were calculated by Kaplan meier method and survival curves were prepared and survival difference was compared by Log rank test. Results:Survival rates at 5 year of no MLND, selective MLND and systematic MLND groups were 22.6%, 48.4%, and 51.6%, respectively. Survival rates of two MLND groups were higher than that of no MLND group. Log rank test presented significantly statistical difference between them ( P

To study the distribution of two different phenotype mast cells in atherosclerotic lesions of human carotid arteries, 32 samples of endarterectomy and 10 autopsies of normal carotid specimens were fixed and embeded in paraffin, sections were stained with hematoxylin-eosin, toluidine blue,monoclonal antibodies against the two major proteases of mast cells(tryptase and chymase) and monoclonal antibodies against CD-3 of T lymphocytes and CD-68 of macrophages. The quantity,distribution and degranule of two different phenotype mast cells in atherosclerotic lesions of human carotid arteries were investigated,and the ratio of mast cells to T lymphocytes and macrophages in atherosclerotic lesions was calculated. The density(cells/mm 2 ) of mast cells in shoulder region of plaque(6 3?4 0) was much higher than that in normal intima,cap and core region(1 3?2 3,2 3?2 6,2 2?3 7) .The proportion of chymase-containing mast cells to tryptase-containing mast cells was 0 36,0 51,0 47 and 0 39 respectively in normal intima,cap,core and shoulder region of plaque.The propotion of degranulated mast cells was the highest in shoulder region of plaque(65%).The ratios of mast cells to T lymphocytes and to macrophages were 0 25 and 0 14 respectively in shoulder region of plaques.Light microscopic studies of mast cells revealed that mast cells were more commonly observed in thrombus and around calcification and blood vessels of plaque.Mast cells play a role in the formation of plaque,and participate in the destabilization of plaque.

Objective To study the effects of isoflurane anesthesia on the medium- and longterm cognitive function in mice at different months of age. Methods Male C57BL/6J mice at ages of 4 month (n =45)and 20 month (n 45) were randomly assigned to control group,short- term anesthesia and long term anesthesia groups,respectively (n=15 per group).Inhalation anesthesia was applied with 3％ isoflurane for induction and 1.2 ％ isoflurane for maintain in 30 ％ oxygen,and control group received 30％ oxygen only for 60 min.Short- and long- term anesthesia group anesthesia was maintained for 30 min and 60 min,respectively.Cognitive function was determined by alternative behavior and water maze.Alternative behavior was assessed at 1 d before ancsthesia and 7,14 and 28 d after anesthesia,and water maze was assessed from 7 d to 8 d,9 d,10 d,11 d and 28 d after anesthesia. Results The correct rate of alternative behavior at age of 4 month in long-term anesthesia group [(58=6)％] was lower than relative control [(69±9)％] (t=4.26,P＜0.01) at 28 d.The number of arm entries at age of 20 month in short- term anesthesia group (31 ± 6) was increased than control(24±6) and long-term anesthesia group (24±8)(F=5.34,P＜0.01) at 14 d after anesthesia,while the number in long-term anesthesia group (24± 6) was decreased than control (29±7) and short term anesthesia group(30±6)(F=3.29,P＜0.05) with no significant difference in correct rate at 28 d after anesthesia.There was no difference in latent time of water maze between groups at age of 4 month.The ratios of spent time in the target quadrant to the whole time at age of 4 month at 11 d and 28 d after anesthesia in short-term anesthesia group[( 36.6 ± 14.4)％,(34.7 ±9.5)％] and long term anesthesia group [( 36.8 ± 16.4)％ ,(31.8± 12.0)％] were reduced as compared with control [(49.5±8.8) ％,(42.8±12.2) ％] (F=3.31,3.30,all P＜0.05).The latent time of mice at age of 20 month at 11 d after anesthesia in short-term anesthesia[(31±6)s] and longterm anesthesia group [(30±7)s ] were longer than control [(23±6)s](F =3.34,P＜0.05).There were no differences in the ratios of spent time in the target quadrant to the whole time and the number of cross -platform among the groups. Conclusions Isoflurane anesthesia may impact the mediumand long- term cognitive funclion in mice at ages of 4 month and 20 month.

ObjectiveTo deter mine the sustained attention function of the patients with mild Alzheimer's disease(AD) and mild cognitive impairment(MCI).Methods10 patients with MCI, 10 with mild AD and other 10 healthy elderly controls were tested with Continuous Performance Task(CPT) aimed to assess sustained attention. ResultsCompared with the normal controls, the mild AD patients reacted very more slowly(P<0.001), missed more targets(P<0.05), while that the MCI patients did was as well as the control group. ConclusionThe mild AD patients shows impairment in sustained attention function, but the MCI patients shows a preserved ability of sustained attention function.

3.0 cm in diameters.Contrast-enhancement CT showed tumors with abundant blood vessel,1 case appeared as uniform enhancement and was difficult to distinguish between tumor body and internal carotid and external carotid because of the iso-density of them.On MRI,the flow void blood vessels inside the tumors could be identified and internal carotid and external carotid separated.MRA displayed all the relation between the tumors and carotid and its branches.DSA could demonstrate the supply arteries of the tumors.Conclusion Ultrasonics,CT,MRI and DSA have own definitely characteristic value in diagnosing carotid body tumor.

Objective To study the drug resistance situation of Mycobacterium tuberculosis strains isolated from the patients with HIV/AIDS complicating tuberculosis (TB).Methods One hundred and ninety-six inpatients with AIDS complicating TB in our hospital from January 2012 to December 2015 were collected.The drug resistance situation of Mycobacterium tuberculosis strains cultured from sputum/tissue fluid/fiber liquid and pathological tissue submitted samples in the patients with AIDS complicating active TB was analyzed.The BACTEC MGIT960 systems was adopted to perform the bacterial identification.The drug sensitivity test was conducted by using 960 culture testing system.Results One hundred and ninety-six strains of Mycobacterium tuberculosis were cultured,the total drug resistance rate of Mycobacterium tuberculosis was 26.02％.These cases were divided into the ＞100/μL and ≤100/μL groups according to different CD4+ T cells count.The drug resistance situation of Mycobacterium tuberculosis to 4 kinds of first line anti-TB drugs were compared between these two groups.The comparison results found that the resistance rate of Mycobacterium tuberculosis strains to the first line anti-TB drugs had no statistical difference between the two groups (P＞0.05).The resistance rates of first line anti-TB drugs from high to low were isoniazid,rifampicin,streptomycin and ethambutol.The drug resistance rate of Mycobacterium tuberculosis strains to 5 types of drug resistant TB had no statistical difference(P＞0.05).Conclusion The drug resistance rate in the initial patients with HIV complicating TB is consistent with the average initial drugresistance level of TB patients in our country.The TB drug resistance rate in the patients with HIV complicating TB has no correlation with CD4+ T cells count.

Objective To investigate the effect of H 2 S and its synthetase inhibitor propargylglycine ( PAG) on the autophagic function in caerulein-induced acute pancreatitis ( AP) mice.Methods A total of 60 male BALB/c mice were randomly divided into control , AP, NaHS and PAG group using random number method.AP was induced in mice via hourly intraperitoneal injection of caerulein (50 μg/kg) continuously for 6 hours.NaHS and PAG group received NaHS (10 mg/kg) or PAG (50 mg/kg) 1 h before the AP induction . A equal volume of normal saline solution was injected in control group and AP group .All the mice were killed at 12 h after the first caerulein injection and blood sample was collected for the detection of serum amylase and lipase content.Deproteinization spectrometry was used to detect serum H 2 S content, and pancreatic tissue was pathological examined and scored . Real-time PCR detected mRNA expression of CSE , and the protein expression of LC3-Ⅱ/LC3 Ⅰand p62 was measured using Western blot .Results Serum amylase, lipase, H2S, CSE mRNA, LC3Ⅱ/LC3Ⅰand p62 were (2 700 ±100)U/L, (70 ±20)U/L,(22.9 ±1.7)mmol/L, 1.0 ±0.1,0.419 ±0.080, 0.227 ±0.140 in control group; (17 290 ±500)U/L,(520 ±40)U/L, (31.3 ± 3.0)mmol/L, 5.4 ±0.4, 1.184 ±0.120, 1.985 ±0.210 in AP group; (27 784 ±1 200)U/L, (900 ± 80)U/L,(38.6 ±3.3)mmol/L, 6.9 ±0.9,1.600 ±0.210, 4.229 ±0.050 in NaHS group; (13 750 ± 2 000)U/L,(370 ±20)U/L, (24.5 ±2.1)mmol/L, 4.2 ±0.5, 0.745 ±0.130, 1.203 ±0.080 in PAG group.All those biomarkers detected above in AP group significantly increased compared with control group , which were much lower than those in NaHS group , but higher than those in PAG group , and the differences were statistically significant (all P<0.05).Pancreatic histological damage in NaHS group was more severe than that in AP group , which in PAG group was less severe than that in AP group .Conclusions PAG could greatly decrease serum amylase and lipase level , and reduce the damage on autophagy and the severity of AP .