Objective Our retrospective study is aimed to discuss the relationship between the curve changes of T lymphocyte subsets before and after the operation and the infectious complications after radical resec -tion of gastric cancer .Methods Clinical data of patients with gastric cancer received treatment at Central Hospi -tal of Panjin City,Liaoning Province from 2012 to 2014 were retrospectively analyzed .The enrolled patients were divided into two groups according to the infectious complications ,observe group ( patients with infectious complica-tions) and control group ( patients without infectious complications ) .The results of T lymphocyte subsets in two groups were compared .Results A total of 70 patients was retrospective analyzed , including 33 pationts in ob-serve group and 37 pationts in control group.At the 4th day after operation,the levels of CD3,CD4 in the observe group were obviously lower than those in control group .There was no statistical difference at the other time points . At the 4th and 9th day after operation,the levels of CD8,CD4/CD8 rate in the observe group were obviously lower than those in control group .There was no statistical difference at the other time points .Conclusion There is re-markable relationship between the curve changes of T lymphocyte subsets before or after the operation and the in -cidence of infectious complications after radical resection of gastric cancer .

Objective To evaluate the efficacy of endoscopic variceal ligation and somatostatin for esophageal varices bleeding.Methods Eighty patients with hepatic cirrhotic esophageal varices bleeding were allocated into two groups,forty in endoscopic variceal ligation(EVL)group and the others in somatostatin(stilamin)group.Results Initial hemostasis rates(including emergency hemostasis and no bleeding for 72 hours)and one-month rebleeding rates in EVL group and somatostatin group were 97.5% vs 80%(P0.05).The hepatic encephalopathy rates were 2.5% vs 15%(P0.05).Conclusion Endoscopic variceal ligation is superior to somatostatin for hepatic cirrhotic esophageal varices bleeding.EVL can lower the rate of hepatic encephalopathy.

Object To establish the process of purification for ?-linolenic acid from the fruit oil of Camptotheca acuminata Decne.. Methods Complexometry by AgNO 3 was applied. Results The optimal conditions: the AgNO 3 concentration was 4 mol/L, the complexometric temperature was lower than 15 ℃, and the complexometric time was 2 h. The purity of ?-linolenic acid was 91.25%. Conclusion The concentration of ?-linolenic acid from the fruit oil of C. acuminata can reach to 45.8%, therefore it is a new abundant resource for ?-linolenic acid. ?-linolenic acid can be well purified in the fruit oil by this process.

Objective: To clone the Fab gene of a monoclonal antibody (mAb) BDI against human bladder cancer and its expression in E. coli. Methods: Fd and K genes of mAb BDI were cloned by RT-PCR and inserted into an Fab expression vector. Phage displaying Fab and soluble Fab were expressed in E. coli. The N-terminal sequence of VH region was corrected by PCR mediated mutagenesis. The antigen-binding characteristics of the Fab were tested by ELISA and immu-nohistochemistry. Results: Fd and K genes were cloned into the expressing vector p3MH and the phage displaying antibody and soluble Fab were expressed in E. coli, which showed weak binding activity to bladder cancer cells. Correction of the N-terminal sequence of the VHimproved the biding activity dramatically. The feasibility of the application of the Fab in phage antibody library screening was confirmed by a simulated panning procedure. Conclusion: The Fab gene of an anti-human bladder cancer mAb was expressed in E. coli. The importance of the N-terminal sequence on antibody binding activity was suggested.

Objective To evaluate the therapeutic effect of early fluid resuscitation under the guidance of pulse indicator continuous cardiac output (PiCCO) on patients with severe acute pancreatitis (SAP).Methods Clinical data of 18 SAP patients (research group),who had undergone fluid resuscitation under the guidance of PiCCO in the Department of Critical Care Medicine of the Second Affiliated Hospital of Anhui Medical University from October 2011 to October 2013,were analyzed prospectively.At the same time,clinical data of 25 cases (control group) that had undergone fluid resuscitation without the guidance of PiCCO from January 2009 to September 2011 were collected retrospectively.The volume of fluid and clinical data were compared between two groups.Results During the first 6 hours,0-24 hours,24-48 hours,and 0-72 hours after intensive care unit (ICU) admission,the research group received larger volume of fluid than that of the control group (mL:2 133 ± 1 593 vs.1 024 ± 421,t=3.337,P=0.002; 5 960 ±2 951 vs.3 767 ± 854,t=3.531,P=0.001; 4 709 ± 1 508 vs.3 863 ± 1 122,t=2.112,P=0.031 ; 14 601 ± 5 095 vs.11 409 ± 2 667,t=2.673,P=0.007).Compared with the control group,the incidence of application of blood purification was lowered [5.56％ (1/18) vs.44.00％ (11/25),x2=7.688,P=0.006],the duration of the systemic inflammatory response syndrome (SIRS) was shortened (days:3.54 ± 2.44 vs.5.62 ± 3.62,t=2.113,P=0.041),acute physiology and chronic health Ⅱ (APACHE Ⅱ) score was significantly declined at 24 hours after admission (11±4 vs.14 ± 5,t=2.104,P=0.042),the blood lactic acid was decreased more significantly after 72 hours (mmol/L:3.10 ±0.55 vs.2.40 ± 1.12,t=2.442,P=0.019),and the length of ICU stay was shortened (days:10 ±9 vs.20 ± 10,t=3.371,P=0.002) in research group.But there was no significant difference in the percentage of the use of vasoactive drugs [16.67％ (3/18) vs.24.00％ (6/25),x2 =0.340,P=0.560],the incidence of invasive mechanical ventilation [50.00％ (9/18) vs.52.00％ (13/25),x2 =0.017,P=0.897],72-hour urea nitrogen changes (mmol/L:-0.33 ± 4.71 vs.-0.09 ± 5.37,t=0.152,P=0.880),and the percentage of abdominal infection [16.67％ (3/18) vs.16.00％ (4/25),x2=0.003,P=0.953] between research group and control group.The mortality in research group was lower than that in control group [5.56％ (1/18) vs.20.00％ (5/25)] without statistical difference (x2=1.819,P=0.178).According to the 2012 Atlanta classification,patients were re-evaluated after 48 hours fluid resuscitation.Six patients in research group developed moderately severe acute pancreatitis,and the incidence was significantly higher than that in control group [33.33％ (6/18) vs.8.00％ (2/25),x2=4.435,P=0.034].The time of mean PiCCO installation was 4.5 days in 18 cases of the research group,and no related complications occurred.Conclusions The PiCCO device may be a useful adjunct for fluid resuscitation monitoring in patients with SAP within 72 hours.Early fluid resuscitation under the guidance of PiCCO may be helpful in improving tissue perfusion,reducing the application of blood purification,as well as shortening length of ICU stay.This program did not increase the risk of invasive mechanical ventilation,and no obvious change in mortality rate was observed.

Objective To observe the effect of apolipoprotein E mimetic peptide (ApoE23) on lipopolysaccharide (LPS) levels in plasma and the regulatory role of ApoE23 on low density lipoprotein receptor (LDLR) on liver cells in the septic mice.Methods An ApoE mimetic peptide was designed and referred terminologically as ApoE23 in abbreviation.ApoE23 was synthesized by using solid phase synthesis assay and were refined by using high performance liquid chromatography (HPLC).The peptide was identified and confirmed by using electron spray ionization mass spectrometry and amino acid composition analysis.The C57BL mice infected with Salmonella typhimurium group B were treated with apoE23 injected into tail vein.The plasma LPS levels were measured by using immunoturbidimetry.The LDLR expression and level on liver cells were measured by real time PCR and western blot respectively.Results The plasma LPS levels significantly increased and the liver LDLR expression decreased in the septic mice.ApoE23 treatment markedly reduced the plasma LPS levels and redressed the LDLR down-expressions on liver cells both in mRNA and protein levels compared to the septic mice without ApoE23 treatment.Conclusions The reduction of LPS level after ApoE23 treatment may be associated with the modulation role of ApoE23 in LDLR expression on liver cells,and ApoE23 may be a potential agent against bacterial sepsis as well.One of possible mechanisms was most likely associated with effect of ApoE23 on LDLR expression.

Objective To investigate the effects of soluble endoglin(sEng)on nitric oxide (NO)production and endothelial nitric oxide synthase(eNOS)phosphorylation in cultured human umbilical vein endothelial cells.Methods Human umbilical vein endothelial cells within 3 passages seeded in culture plates of 96 wells,were stimulated by total culture medium(control group)or sEng (1,10 and 100 μg/L)respectively.Cells and medium were collected after cells were cultured for 6,12 and 24 hours respectively.The concentration of the metabolites of NO in each group was measured by nitrate reductase method.The expression of eNOS and eNOS-Ser(p)1177 were detected by Western blot.The expression of eNOS mRNA in each group was detected by real-time fluorescence reverse transcription-polymerase chain reaction.Analysis of variance,LSD method and pearson correlation were used to compare the difference between groups.Results(1)The concentration of the metabolites of NO in 1,10 and 100μg/L sEng groups was(59.25±1.63),(41.08±2.71)and (30.38±1.63)μmol/L respectively after cultured for 6 hours;(54.98±3.34),(35.00±8.60)and (19.82±3.75)μmol/L for 12 hours; and(46.14±4.93),(30.24±2.08)and(12.78±5.01)μmol/L for 24 hours.There was no significant changes in control group with time going by(F=2.30,P=0.14).The concentration of the metabolites of NO was significantly lower in sEng group,and which had negative correlation with culture time(r=-0.98,P＜0.05)and dose(r=-0.88,P＜0.05).(2)The expression of eNOS in 1,10,100 μg/L sEng groups was 0.71 ± 0.00,0.47 ± 0.00 and 0.32±0.00 after cultured for 6 hours; 0.58±0.00,0.42±0.00 and 0.25±0.00 for 12 hours; and 0.49±0.00,0.33±0.00 and 0.18±0.00 for 24 hours.While the expression of eNOS and eNOS-Ser (p)1177/eNOS had no significant changes in control group with time going by(F=3.59 and 0.37,P=0.09 and 0.80).The expression of eNOS protein and eNOS-Ser(p)1177 decreased significantly in sEng groups,which had negative correlation with culture time(r=0.98 and-0.96,P＜0.05)and dose(r=-0.76 and-0.79,P＜0.05).(3)The expression of eNOS mRNA decreased significantly in sEng groups.Which also had negative correlation with culture time(r=-0.51,P＜0.05)and dose(r=-0.82,P＜0.05).Conclusions sEng might inhibit eNOS activity by blocking 1177 Ser phosphorylation to decrease NO production.

Objective To investigate the clinical characteristics of systemic lupus erythematosus (SLE) and the situation of diagnosis after onset. Methods Three hundred outpatients diagnosed with SLE were investigated in the People's Hospital, the Third Hospital of Peking University, Xinjiang People's Hospital and the Affiliated Hospital from May to July 2008, including gender, age of onset, clinical manifestations and the site of first hospitalization. Results ① In the cross-sectional study, 300 SLE patients were investigated. The male-to-female ratio was 1:13. ② The most common manifestations at onset were arthritis (46.3%), rash (34.%) and fever (32.7%). Lupus nephritis was found to occur in a significantly higher frequency in male patients than female as the initial manifestation. 60.9% patients had lupus nephritis in the first year after onset. ③ 99.1% of the patients were correctly diagnosed after visiting rheumatologists. 23.7% of the SLE patients were not correctly diagnosed for more than one year after disease onset. Conclusion Arthritis, rash and fever are the most common initial clinical manifestations of SLE. Lupus nephritis is more commonly seen in male SLE patients than female at the disease onset. The diagnosis of lupus is delayed in certain proportion of patients.

Objective To analyze the correlation factors affecting DSA picture quality and to investigate the DSA value and effectiveness in hepatic arteriography. Methods 36 cases with liver tumor were analyzed through femoral artery intubatton with Seldinger and had hepatic arteriography with RH catheter. Results In the 192 images of 36 cases,the percentage of first-rate image was 92.7%,the second-rate image (9/192) was 5.3%,the third-rate image (5/192) was 2%. Conclusion All of the second-rate images and the third-rate images which were handled with selective image postprocessing can improve picture quality and can reach diagnosis request.

Objective To investigate the composition of pathogens from cerebrospinal fluid culture in pediatric intensive care unit,and to explore the distribution of the pathogens,antibiotic resistance profile,infection source and prognosis.Methods The results of cerebrospinal fluid culture in pediatric intensive care unit from January 2012 to December 2016 were retrospectively analyzed.Bacteria identification and antimicrobial susceptibility were assayed by Vitek Compat Ⅱ system from Bio Mrieux Company.Some bacterial strains were tested by disk diffusion method or E-test.Results A total of 982 cerebrospinal fluid were tested during research period,and 78 were positive with positive rate of 7.9%.A total of 81 strains of pathogens were isolated,there were 46 strains of gram negative bacteria (56.8%) and 35 strains of gram positive bacteria (43.2%).The top three bacteria were Acinetobacter baumannii(28.4%),coagulase negative Staphylococcus(19.8%),and Escherichia coli(13.6%).The resistance to antibiotics was quite different,manifesting muti-resistance or extensively drug resistance.Acinetobacter baumannii was the predominant specy of gram negative bacteria,which was highly resistant to meropenem and cephalosporins and highly sensitive to tigecycline.Coagulase negative Staphylococcus was the predominant specy of gram positive bacteria,which was highly resistant to cefazolin and ampicillin and highly sensitive to linezolid and vancomycin.Conclusion Gram negative bacteria are the main species of cerebrospinal fluid culture in pediatric intensive care unit.Acinetobacter baumannii is the major pathogen,which was highly resistant to meropenem and cephalosporins.