Objective To study the stability and reproducibility in serum proteome by matrix assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS).Methods Bruker Daltonics MALDI-TOF-MS was adopted under the linear mode, with mass ranging from 800 to 10 000 m/z.MB-WCX pre-extraction kit and Clinprotools software was used to analyze data.Results The reproducibility study was carried out under the standardized conditions.Data analysis showed that the m/z ratio was in the acceptable range, and the coefficients of variation(CV) was 12.7% ,13.1% and 18.8% ,respectively in the parallel experiment by taking 2 cancer and 1 healthy control serum samples and could identify the diseased samples.Then 30 healthy control samples were used to validate this result, all of which showed very good mass profile. The average CV was 25.5%, which could meet the requirements of clinical laboratory.Conclusion With the help of optimized experimental conditions and MALDI-TOF-MS, stable and reproducible mass spectrum can be required which is helpful for the early diagnosis of diseases.

Objective To study the change in blood-brain barrier (BBB) permeability in dog with craniocerebral gunshot injury and its significance. Methods Twelve dogs were randomly divided into control group, 15min ofter penetrating craniocerebral injury (PCI) group, 1h after PCI group and 6h after PCI group (n=3). The injury was produced by a small-calibre rifle made in Germany (type 5.56mm, weight of bullet 2.57g). Lanthanum nitrate was infused through the heart. The changes in BBB permeability were observed under electronic microscope. Results In 15min PCI group and 1h PCI group, changes in BBB permeability was observed, with manifestation of opening of tight junctions, with lanthanum nitrate particles passing through BBB into the brain tissues. These changes were more marked in 1h PCI group. Comparing with the above two groups, even more lanthanum nitrate particles were found in the brain tissue in the 6h group (P

Objective To study the gene expression and the expression change rule of c-fos in the canines posterior to craniocerebral gunshot wounds in order to provide the experimental base for further understanding of the mechanism of gunshot craniocerebral injury. Methods Using the canine model of penetrating craniocerebral injury made by the bullets of the small-calibre rifle made in Germany, the c-fos expressions in the control cerebral tissues and the contusion and concussion areas of the trajectory and the brain stem neurons at different time points after trauma were observed by immunohistochemical method. Results Feeble c-fos expression was detected in the control group. After craniocerebral gunshot wounds, the c-fos expression increased in the contusion and concussion areas of the trajectory and in the brain stem at the 30th minutes, reached the peak at the 2nd hour and began to decrease at the 3rd hour. The c-fos expression in the concussion area was much more significant than that in the contusion area ( P

Objective: To study the protective effect of coenzyme Q_10 on red blood cell membrane and its immunity in patient during extracorporeal circulation. Method: Twenty patients under extracorporeal circulation about 30 minutes were randomly divided into control group and coenzyme Q_10 group (n=10). Coenzyme Q_10 2mg/kg was added to the priming fluid in coenzyme Q_10 group. Plasma levels of malondialdehyde (MDA), free hemoglobin (FHb), immune adhe sion ability and immune compound of red blood cell membrane were measured before extracorporeal circulation, 15 and 30 minutes after beginning of cardiopulmonary bypass, and on first day morning after operation. Result; All different periods after beginning of cardiopulmonary bypass in coenzyme Q_10, group, MDA and FHb levels were lower and im mune adhesion ability was higher than those of control group. Conclusion: Coenzyme Q_10 may protect red blood cell membrane and its immunity of patient during extracorporeal circulation.

Objective The clinical significance of serum cytokine in kidney transplanted patients have been evaluated by observing the variation of cytokines and biochemical parameters. Methods The serum IL-1?、IL-1?、IL-2、IL-4、IL-6、IL-8、IL-10、VEGF、IFN-?、TNF-?、MCP-1、EGF and 22 items of biochemistry parameters have been followed in 10 patients during 90 days around operation time. Cytokine had been measured by biochips methods in evidence 180 automatic biochips analyzer. The serum biochemical parameters had been measured by Roche diagnostic company reagents kits in HITACHI 7600DDP analyzer.Results Serum IL-6 and IL-8 had reached the highest level [(42.5?42.8) ng/L and (343.5?493.1) ng/L] at 7 days after kidney transplantation,whereas IL-2 and IL-10 were reached the highest level [(16.3 ? 5.7) ng/L and (16.6 ? 24.2) ng/L] respectively at 14 days. Then they decreased gradually, but IL-6 and IL-8 were still higher than normal control. The decreased VEGF, EGF and MCP-1 in kidney failure patient had increased gradually after transplantation. But EGF was still lower than normal control at 90 days after operation. Urea、Cr、Ua and Glu had been restored to normal level after two month of operation and the significant relationship between IL-8 and serum LDH activity have been found( r=0.93,P

Objective To study the therapeutic effect of pinaverium bromid and oryz-aspergillus enzyme and pancreatin tablet on patients with bile duct Ⅲ of sphincter of Oddi dysfunction (SOD) after cholecystectomy.Methods 72 patients who had a diagnosis consistent with bile duct Ⅲ of SOD seen from February 2010 to February 2013 in our hospital were randomly divided into the control group and the treatment group.Patients in the control group were given pinaverium bromid for 3 months while patients in the treatment group were,in addition to pinaverium bromid,given oryz-aspergillus enzyme and pancreatin tablet.Relief of abdominal pain,abdominal distention and recurrence of the above symptoms after drug withdrawal were studied.Results The scores on abdominal pain in the treatment group before and after treatment were 7.5 ± 1.1 and 3.0 ± 1.6 (P ＜ 0.05) while the scores in the control group were 7.4 ± 1.1 and 5.0 ± 1.4 (P ＜ 0.05),respectively.Alleviation of abdominal pain in the treatment group was superior to the control group (P ＜ 0.05).The scores on abdominal distention in the treatment group before and after treatment were 5.4 ± 0.6 and 1.6 ± 0.5 (P ＜ 0.05) while the scores in the control group were 5.2 ± 0.5 and 4.7 ± 0.8 (P ＞ 0.05),respectively.Alleviation of abdominal distention in the treatment group was superior to the control group (P ＜0.05).The scores of abdominal pain and distention in half year after 3 months' therapy in the treatment group were 3.1 ± 1.7 and 1.7 ± 1.1,respectively,which obviously were lower than the control group (5.4 ± 1.4 and 5.0 ± 0.6,P ＜ 0.05).Conclusions Pinaverium bromid and oryz-aspergillus enzyme and pancreatin tablet could effectively alleviate abdominal pain and distention in patients with bile duct Ⅲ of SOD after cholecystectomy and the recurrence rates of symptoms were significantly lower.

Stroke is the disease which caused by many risk factors.The relationship between insulin resistance(IR) and young adult stroke is one of the focuses now in the neurological field.IR refered to the series of pathological and physiological changes,it happens when the response of the target tissue organ to insulin is depressing or losing.There are many ways of detection of IR,the insulin sensitivity index(ISI) is one of the most satisfied indexes to reflect the sensitivity to insulin.IR could cause a series of pathological and physiological changes,which caused hyperinsulinemia,hyperglycemia,hyperpiesia,blood-fat derangement,fibrinolytic system anomaly,blood vessel endothelium change,artherosclerosis,et al,maybe in ways of many metabolic risk factors.Atherosclerosis is the main etiopathogenisis factor in young adult stroke,as a conclusion,IR is also existed in young adult stroke.But,does IR exist in all types of young adult stroke? What is the mechanism? Is the level of IR related with the pathogenetic condition and prognosis? These questions are still not clear at present,and the study on the relationship between IR and young adult stroke is important to prevent young adult stroke.

Objective To compare the clinical efficacy and the adverse reaction of transcatheter arteri-al chemoembolization( TACE)alone and combined with stereotactic body radiation therapy( SBRT)in patients with primary hepatic carcinoma by a Meta-analysis. Methods PubMed,Cochrane Library,EMBase,Ovid, MEDLIN,CNKI,CBMdisc,VIP and Wanfang were searched to identify the controlled clinical trials of TACE and SBRT for primary hepatic carcinoma. The obtained data were analyzed using Review Manager version 5. 2 provided by Cochrane Collaboration. To analysis the short-term effect of TACE alone or combined with SBRT, the rate of local tumor control and the difference of one,two,three and five-year survival rate. Results A total of 1 143 patients from 10 controlled clinical trials were involved according to the inclusion criteria. The Meta-analysis showed that TACE and SBRT group significantly increased the short-term effective rate,the rate of local tumor control,l-,2-,3-and 5-year overall survival rates(RR=1. 43,95%CI:1. 32-1. 56,P﹤0. 000 01;RR=2. 09,95%CI:1. 63-2. 69,P﹤0. 000 01;RR=1. 31,95%CI:1. 21-1. 42,P﹤0. 000 01;RR=1. 46, 95%CI:1. 23-1. 72,P﹤0. 000 01;RR=1. 76,95%CI:1. 14-2. 71,P=0. 01;RR=2. 29,95%CI:1. 22-4. 32, P=0. 01). There was no statistically significant difference between the two groups on adverse events such as leucopenia(RR=0.97,P =0. 61),thrombocytopenia(RR =0. 99,P =0.85),hemoglobin decrease(RR =0. 95,P=0. 63),nausea and vomiting(RR=1. 00,P=0. 98),liver function damage(RR=0. 98,P=0. 87). Conclusion Compared with TACE,TACE combined with SBRT can increase the short-term effective rate,the rate of local tumor control,the 1-,2-,3-and 5-year overall survival time of the patients,and does not increase the incidence of adverse reaction. However high-quality trials with large sample sizes are still needed to verify the long-term efficacy and safety.

Objective To evaluate the effects of inhaled aerosolized different doses of lidocaine on lung injury in patients undergoing cardiac valve replacement under cardiopulmonary bypass (CPB).Methods Thirty ASA physical status Ⅱ or Ⅲ patients of both sexes,aged 18-58 yr,weighing 35-70 kg,undergoing elective cardiac valve replacement with CPB,were randomly divided into 3 groups (n =10 each) using a random number table:control group (group C),lidocaine 100 mg group (group L1) and lidocaine 200 mg group (group L2).Anesthesia was induced with iv injection of midazolam,etomidate,fentanyl and vecuronium.The patients were endotracheally intubated and mechanically ventilated.The aemsolized normal saline 10 ml,2％ lidocaine 5 ml + saline 5 ml and 2％ lidocaine 10 ml were inhaled in C,L1 and L2 groups,respectively,starting from 10 min after induction.At 10 min after induction (T0),1 and 10 min after opening of vena cava (T1,2),and the end of CPB (T3),blood samples were collected from the left radial artery (LRA) and right atrium (RA) for determination of plasma interleukin8 (IL-8),tumor necrosis factor-α (TNF-α) and malondialdehyde (MDA) concentrations (using ELISA) and the expression of CD11 b on polymorphonuclear leukocytes (by flow cytometry).Blood samples were collected from the left radial artery at T0,immediately after beginning of CPB,at T3 and at 2 and 6 h after termination of CPB for blood gas analysis.The oxygenation index (OI),respiratory index (RI) and dynamic lung compliance (Cdyn) were calculated.Results Compared with group C,the ratio between IL-8 concentration in LRA and in RA (concentration of IL-8LRA/RA) was significantly decreased at T2,3,the concentration of MDALRA/RA was decreased at T3 (P ＜ 0.05),no significant change was found in the expression of CD11bLRA/RA at each time point (P ＞ 0.05),and RI was decreased at T3 in L1 and L2 groups (P ＜ 0.05).There were no significant differences in the concentration of IL-8LRA/RA,TNF-αLRA/RA and MDALRA/RA,expression of CD11bLR A/RA,RI,OI and Cdyn at each time point between group L2 and group L1 (P ＞ 0.05).Conclusion Aerosolized lidocaine inhalation can attenuate lung injury and improve lung function in patients undergoing cardiac valve replacement under CPB by reducing inflammatory responses and lipid peroxidation in lung tissues.

ObjectiveTo investigate the role and mechanism of cervical sympathetic ganglia block in alleviation of cerebrovascular spasm (CVS) of rabbits after subarachnoid hemorrhage ( SAH ).Methods A total of 18 healthy male white rabbits whose cervical sympathetic ganglia were successfully blocked were randomly divided into three groups:sham operation group (Group A),SAH group (Group B) and SAH with cervical sympathetic ganglia block group (Group C).Venous blood (2 ml) and cerebrospinal fluid (2 ml) were obtained before the first blood injection ( T1 ),at 30 minutes after injection ( T2 ) and at day 7 after injection ( T3 ),respectively,and conserved in a low temperature refrigerator for spare use.Basilar artery value at T1,T2 and T3 was measured via cerebral angiography.The degree of damage to nervous system at T3 was recorded.ResultsThere was no significant difference in diameter of basilar artery at T1 among three groups.At T2 and T3,the diameters of basilar artery of Groups B and C were shorter than that of Group A,with Group B shorter than Group C,with statistical differences ( P ＜0.01 ).There were no significant differences in NO and NOS in plasma and cerebrospinal fluid at T1 among three groups (P＞0.05).NO and NOS contents at T2 and T3 were lower than those at T1,with Group A lower than Groups B and C,with statistical differences (P＜0.01 ).At T3,the nerve function of Groups B and C were better than that of Group A,with Group C better than Group B ( P ＜0.01 ).Conclusion Cervical sympathetic ganglia block relieves CVS,increases NO content and NOS activity in plasma and cerebrospinal fluid and promotes neural functional recovery after SAH.