Objective To investigate the effects of sevoflurane anesthesia in diabetic pregnant rats on the cognitive function of the offspring rats. Methods Forty female Sprague?Dawley rats and 5 male rats, weighing 200-250 g, were used in the study. Twenty pregnant rats at 7 weeks of gestation were randomly selected, and diabetes mellitus was induced by intraperitoneal streptozotocin 45 mg∕kg and confirmed by blood glucose level>10.4 mmol∕L. Twenty pregnant rats at 20 days of gestation, in which diabetes mellitus was not induced, were selected and divided into 2 groups ( n=10 each) using a random number table:sevoflurane group (group S) and control group (group C). Twenty pregnant rats at 20 days of gestation with diabetes mellitus were selected and divided into 2 groups ( n=10 each) using a random number table:sevoflurane group (group DS) and control group ( group DC). In DS and S groups, the pregnant rats were placed in a self?made anesthetic box and inhaled 2% sevoflurane for 2 h. At 6 weeks after birth, the offspring rats were selected, and Morris water maze test was performed. The rats were sacrificed, brains were removed, and the hippocampi and cortex were removed for determination of phosphorylated cyclic a?denosine monophosphate response element?binding protein ( p?CREB) expression using immuno?histochem?istry. Results Compared with group C, the escape latency was significantly prolonged, and the frequency of crossing the original platform was significantly decreased in S and DC groups ( P<0.05) . Compared with group DC, the escape latency was significantly prolonged, and the frequency of crossing the original plat?form was significantly decreased in group DS (P<0.01). Compared with group S, the escape latency was significantly prolonged, the frequency of crossing the original platform was significantly decreased ( P<0.05) , and lighter staining for p?CREB was found, and the number of p?CREB positive cells was decreased in the hippocampus and cortex in group DS. Conclusion Sevoflurane anesthesia?induced cognitive dys?function is aggravated in the offspring rats of diabetic pregnant rats, and the mechanism is related to inhibi?tion of CREB phosphorylation.

Objective To evaluate the effect of sleep deprivation on cognitive function in the rats undergoing propofol anesthesia.Methods Sixty healthy male Sprague Dawley rats,aged 14-18 weeks,weighing 200-250 g,were randomly assigned into 3 groups (n=20 each) using a random number table:control group (group C),propofol anesthesia group (group P),and sleep deprivation + propofol anesthesia group (group SDP).Propofol was given as a bolus of 15 mg/kg followed by an infusion of 40 mg · kg-1 · h-1 for 2 h in group P.After the rats were subjected to rapid eye movement sleep deprivation for 24 h,the rats received propofol anesthesia in group SDP.Before sleep deprivation,after sleep deprivation,and at 1,3 and 7 days after anesthesia,Morris water maze test was used to assess the learning and memory function,and the escape latency and frequency of crossing the original platform were recorded.Ten rats randomly selected from each group at 1 and 7 days after anesthesia were sacrificed,and brains were removed to observe the morphology of nerve cells in the hippocampal CA1 region (by Nissl's staining) and to detect the expression of phosphorylated Tau at Thr231 (Tau-pThr231) in the hippocampal CA1 region (by immunohistochemisty).Results Compared with group C,the escape latency was significantly prolonged,the frequency of crossing the original platform was decreased,the expression of Tau-pThr231 in the hippocampal CA1 region was up-regulated at 1 day after anesthesia in P and SDP groups (P＜0.05),especially in group SDP (P＜0.05),and there was no significant difference between the groups at the other time points (P＞0.05).The pathological changes were aggravated at 1 day after anesthesia in group SDP compared with group P,and there was no significant difference at 3 and 7 days after anesthesia between group SDP and group P.Conclusion Sleep deprivation can aggravate the transient cognitive dysfunction after propofol anesthesia,and the mechanism is related to promotion of Tau phosphorylation in the rats.

Objective:To explore the characteristics of human melanoma-specific antigen peptides by HLA-A2 restricted tumor-infiltrating lymphocytes.Methods:The HLA-A2 protein and polypeptides molecules were purified from the three tumor cell lines(624-Mel, Chap-Mel and JY) by immunoaffinity chromatography, after the peptides bound to HLA-A2 protein solution were acidified with acetic acid and boiled by high temperature, and centrifuged through an Ultra-CL filter, then the peptides extracts were fractionated by revered phase high pressure liquid chromatography(RP-HPLC). Individual fractions were assessed for their ability to reconstitute melanoma-specific epitopes by adding to the HLA-A2 Ag-procceing mutant cell, T2. The biological feature of one of three active peptides from RT-HPLC samples was performed by mass spectrometric analysis. The synthetic peptides identical to active peptide sequences were determined in the reconstitute test.Results:Three prominent peaks(P19, P25 and P31) of the fraction from 624-Mel were observed in the reconstitute test, TIL killing rate was 67% for (P31) peptide fraction. The mass spectrometric analysis of one of active peptides (P31) showed that at mass-to-charge ratio(m/z) 948 has been usually nine residues. The sequence is H+ Ala Lue Trp Lue Phe Phe Gly Val Lue OH-. The peptide synthesized comprising epitopes were verified.Conclusion:These results showed the peptides derived from active fractions were related to human melanoma-specific tumor antigen peptides recognized by HLA-A2-restriced TIL. These peptides could develop novel peptide-based an anti-tumor vaccine for immunotherapy of CTL.

Objective To summarize the distribution of departments,conditions of diagnosis and treatment of the syphilis patients in the general hospitals,and thus to improve the level of diagnosis and treatment.Methods A retrospective analysis of epidemiology and clinical data of 282 cases with syphilis in recent 5 years were conducted. Results The ratio of male to female was about 1:1.9.Female showed a high incidence in the 21 -50 years old,aver-age (41.68 ±0.96)years old,but for male in the 41 -70 years old,average (53.25 ±1.59)years old.The cases combined with other infectious diseases accounted to 22.0 % (62/282).The cases from the department of obstetrics and gynecology were the most (106 cases),followed by surgery (86 cases)and internal medicine (49 cases).Only 23 cases showed the clinical manifestations of syphilis in the 79 cases,which must be treated.The test rate of TRUST was only 39.0% (110/282).Furthermore,it was very low for the rate of treatment and standard treatment. Conclusion Syphilis is the most in department of obstetrics and gynecology in general hospital,and it is also com-mon in the surgery and internal medicine.The most prominent problems are that the non-special doctors had weak awareness for definite diagnosis of syphilis,and the low rate of treatment and standard treatment.

Objective To evaluate the safety and efficacy of treating bifurcation lessions with jailed-balloon technique in simple strategy. Methods Ninety patients with bifurcation lessions (Duke D or F type) who received the side branch protection technique with simple strategy were involved in a single center retrospective analysis. Patients were randomly divided into jailed-balloon protection group (n=48) and jailed guidewire group (n=42). The process operating, procedural success of percutaneous coronary intervention (PCI) and percutaneous transluminal coronary angioplasty (PTCA), complications and the results of follow-up were investigated. Results The clinical baseline date and the bifurcation lesions were not significant different between jailed-balloon group and jailed guidewire group (P>0.05). The procedural success rate of PCI was 100%in jailed-balloon group and 97.6%in jailed guidewire group, no significance difference user between two groups (P>0.05). The perioperative complications (the rate of no reflow) was lower in jailed-balloon group than those of jailed guidewire group (1.0%vs. 19.0%, P<0.05). The procedural success rate of PTCA were lower in jailed-balloon group than that of jailed guidewire group (4.2%vs. 23.8%, P<0.01). The total operation time [(56.40±11.71) s vs. (72.60±10.62) s],exposing time [(9.86±1.82) s vs.(12.24±2.32)s] or amount of used contrast agent [(90.54±15.26) mL vs. (118.16±18.64) mL] were significantly lower in jailed-balloon group compared with those of jailed guidewire group (P<0.05). At the 12-month follow-up, the MACE was lower in the jailed-balloon group than that of jailed guidewire group (16.7%vs. 38.1%, P<0.05). The restenotic rate (2.1%vs. 4.8%, P>0.05) and the maximum restenotic level (19.24%vs. 21.46%,P>0.05) in the main branch were not significant different between jailed-balloon group and jailed guidewire group. But the maximum restenotic level in the opening of side branch was lower in jailed-balloon group than that of jailed guidewire group (51.2% vs. 72.46%, P < 0.01). Conclusion The jailed-balloon technique reduces the operation complications, exposure time and amount of contrast agent, and also saves surgical consumables. The procedure of branch with simple strategy is safe and effective in treatment of bifurcation lesions.

Objective To synthetically evaluate the risk factors of recurrent cerebral infarction in Chinese population.Methods The research literature on the risk factors of recurrent cerebral infarction from the domestic December 2011 published was collected through computers literature retrieval (China Academic Journal,VIP Chinese Science and Technology Academic Journal,Wanfang Database) and literature review.Meta-analysis method was used to synthetically and quantitatively analyze the risk factors of recurrent cerebral infarction reported in China.All of the data were analyzed by STATA 11.0 software.Results The total research literature was 216 studies,and 12 studies were enrolled in this study according to the inclusion and exclusion criteria.All case-control study.There were 1599 cases in case group,2566 cases in control group cumulatively.Meta analysis showed that the summary statistics of sex,hypertension,diabetes,hyperlipemia,smoking,age were 1.58 (1.04-2.39),2.66 (2.02-3.51),2.23 (1.70-2.93),2.22(1.48-3.32),1.94 (1.64-2.29),1.58 (0.55-2.60),respectively.There were significances in statistics (Z =2.16,6.95,5.82,3.87,7.68,3.02,respectively,P ＜ 0.05).Conclusion Hypertension,diabetes,hyperlipemia,smoking,male and age are all the risk factors of recurrent cerebral infarction.

Objective To investigate the diagnostic values of direct lymphangiography for the thoracic duct outlet obstruction.Methods The image data of direct lymphangiography were retrospectively analyzed in 124 patients with lymphedema,Chylothorax,chylous ascites,chyluria and intestinal lymphangiectasis,and compared with the results of neck thoracic duct surgical exploration,2 radiologists reviewed DLG DSA images in a double blind manner.The number of neck stem,subclavian stem,bronchialmediastinal stem and TD terminal into blood obstruction on the operation side showed by DLG were assessed using Kappa analysis.Results Of 124 patients,80 patients had the left cervical lymphatic stem reflux on DLG,75 patients with the left subclavian lymphatic stem reflux,30 patients with the left bronchial-mediastinal lymphatie stem reflux,118 patients showed the thoracic duct outlet barrier into the blood.The consistency rate of DLG were 89.9％ (80/89),92.6％ (75/81),90.9％ (30/33) and 95.2％ (118/124) compared with the neck thoracic duct surgical exploration.Tow radiologists had a high degree of diagnostic consistency (K =0.82,P ＜ 0.05).In addition,114 patients (91.9％) had tortuous,dilated waist lymphatic stem,only 10 patients (8.1％) were normal.The cisterna chyli reflux were found in 92 patients (74.2％),intestinal stem reflux in 16 patients (12.9％),reflux to the kidney area in 11 patients (8.9％),to the pericardium reflux in 5 patients (4.0％),vaginal lymphatic leakage in 7 patients (5.6％),retroperitoneal lymph leakage in 2 patients (1.6％),pleural lymphatic leakage in 3 patients (2.4％),tracheal lymph leakage in 1 patient (0.8％).Conclusion Direct lymphangiography has a high consistency with the cervical thoracic duct surgical exploration in displaying thoracic duct outlet obstruction.

Aircrew survival equipment is for pilots' survival when they have to parachute or land in various bad situations. Introduction relating to survival equipment is given including development course, sorts, carrying methods, its role in aviation survival and its development tendency. It is indicated that survival equipment will still play an important role in aviation survival within quite a time and it is also imperative to perfect aircrew survival equipment system from improving its performance, increasing its tactical using background and improving its supply system of ordering goods.

Objective To develop a more reliable blinking emergency location transmitter with longer time for aircrew in distress. Methods The new LED and new type of explosion-proof casing material (Polycarbonate) with new technologies are adopted. Results Environmental tests and performance tests were done on the new emergency location transmitter according to the environmental requirements of aeronautic products. Conclusion The new emergency location transmitter can meet the operation requirements for aircrew in distress.

Objective To investigate the diagnostic significance of thin layer reconstruction with spiral CT on the pulmonary hamartoma. Methods Accepted both routine CT examination and thin layer construction,2 1 pulmonary hamartoma cases confirmed by pathology were analyzed retrospectively.The margin and inner features of the lesions were observed and recorded.Significant analysis was performed by using SPSS17.0 Pearson chi-square test and Fisher exact test,with P<0.05 as the significant difference criterion.Results Comparison of the display rates by routine CT and thin layer reconstruction:①the same display rate of lobulation were 57.1%(12/21);②the same display rate of calcification were 42.9% (9/21);③the display rates of fat density were 14.3%(3/21)by routine CT and 42.9% (9/21)by thin layer reconstruction.The difference was statistically significant (χ2=4.200,P<0.05);④the display rates of blood vessel throughing were 14.3%(3/21)by routine CT and 47.6% (10/21)by thin layer reconstruction.The difference was statistically significant (χ2=5.459,P<0.05).Conclusion Displaying the inner features of pulmonary hamartoma better than routine CT,the thin layer reconstruction can improve the diagnostic accuracy significantly.