Objective To evaluate the relationship between Helicobac ter pylori (Hp) related gastritis and gastric mucosa content of interleukin - 8 (IL-8) and granuloeyte colony-stimulating factor ( G-CSF). Methods ELISA was used to detect the amount of IL-8 and G-CSF in supernate fluid of gastromucosal tissue culture from 60 patients, and to examine the difference between Hp infected and non-Hp infected cases. These 60 cases include normal gastric mucosa (n =20) , chronic gastritis mucosa (n = 14) , gastric ulcer mucosa (n = 13) , duodenal ulcer mucosa ( n = 13 ). Results The amounts of IL-8 and G-CSF in cases with Hp infection were significantly higher than those without infection (P

Objective It has been shown that ketamine can effectively suppress expression of cell adhesion molecules in vitro. The purpose of this study was to investigate the effect of ketamine on plasma adhesion molecules in vivo during cardiac valve replacement.Methods Twenty ASA Ⅲ-Ⅳ patients (7 males, 13 females) aged 23-65 yrs, weighing 31-77 kg undergoing cardiac valve replacement were randomly divided into two groups of 10 patients each : ketamine group received ketamine 2 mg?kg-1 i.v. before induction of anesthesia and at the start of CPB and control group received normal saline instead of ketamine. Blood samples were taken from radial artery for determination of plasma P-selectin, L-selectin, ICAM-1, IL-6 and cTnI concentrations before induction of anesthesia (T0 ,baseline) , 20 min after initiation of CPB (T1) , 30 min after aortic declamping (T2) 4 h and 24 h after CPB (T3, T4) . Results There was no significant difference between the two groups in age, weight, operation time, CPB time and aortic cross-clamping time. The concentrations of P-selectin, L-selectin, ICAM-1 and IL-6 at T1-4 and cTnI at T2-4 increased significantly compared to baseline (T0) in both groups ( P

Child ; Humans ; Immunoglobulin A ; blood ; Immunoproliferative Small Intestinal Disease ; diagnosis ; drug therapy ; etiology ; Male

Two isomers of nitrochlorobenzene (o-, and p-NCB) were treated by a Pd/Fe catalyst in aqueous solutions through catalytic amination and dechlorination. Nitrochlorobenzenes are rapidly converted to form chloroanilines (CAN) first through an amination process, and then rapidly dechlorinated to become aniline (AN) and Cl(-), without the involvement of any other intermediate reaction products. The amination and dechlorination reaction are believed to take place predominantly on the surface site of the Pd/Fe catalysts. The dechlorination rate of the reductive degradation of the two isomers of nitrochlorobenzene (o-, and p-NCB) in the presence of Pd/Fe as a catalyst was measured experimentally. In all cases, the reaction rate constants were found to increase with the decrease in the Gibbs free energy (correlation with the activation energy) of NCBs formation; the activation energy of each dechlorination reaction was measured to be 95.83 and 77.05 kJ/mol, respectively for o- and p-NCB. The results demonstrated that p-NCBs were reduced more easily than o-NCBs.
Catalysis ; Industrial Waste ; prevention & control ; Iron ; chemistry ; Isomerism ; Kinetics ; Metals ; chemistry ; Nitrobenzenes ; chemistry ; Palladium ; chemistry ; Structure-Activity Relationship ; Waste Disposal, Fluid ; methods ; Water ; chemistry ; Water Purification ; methods

Objective To analyze the molecular characterization of PrM/C and E genome of Japanese encephalitis virus(JEV) strain,CQ11-66,a newly strain isolated from patients with epidemic encephalitis B Chongqing Municipal.Methods The samples were collected from Children's Hospital of Chongqing Medical University,and inoculating BHK-21 cells were used to detect and isolate the Japanese encephalitis virus(JEV) strain,computer analysis of the phylogenetic,nucleic acid data and deduced amino acid sequence was accomplished using the Clustal X(1.8) and MEGA5 programs.Results Only one JEV strain was isolated from patient's cerebrospinal fluid specimen,named CQ11-66.Comparison of the PrM/C genome sequence of strain CQ11-66 with other 31 JEV isolates showed a 74.8％-97.4％ nucleotide sequence homology among them,which resulted in 85.6％-98.7％ amino acid sequence homology; Meanwhile,comparison of the E genome sequence of strain CQ11-66 with other 35 JEV isolates showed a 81.6％-99.6％ nucleotide sequence homology among them,which resulted in 94.8％-99.6％ amino acid sequence homology.There were high homology between CQ11-66 and JEV isolates from Fujian province on nucleotide sequence and amino acid sequence.Phylogenetic analysis of PrM/C and E genome showed that the CQ11-66 belonged to genotype Ⅲ.Conclusion Only one JEV strain was isolated from patient's cerebrospinal fluid specimen.There were some differences between CQ11-66 strain and other JEV isolates,and CQ11-66 strain belonged to genotype Ⅲ.

Objective To observe the effects of sevoflurane pretreatment on lung metastasis of mouse Lewis lung cancer (LLC)cells.Methods Mouse LLC cells were inoculated in culture plate. After being cultured for 24 h the cells were randomly divided into four groups:group control (CC), group 1% sevoflurane (SC1),group 2% sevoflurane (SC2),and group 3% sevoflurane (SC3).Cells of group SC1-3 were exposed to 1%,2%,3% sevoflurane for 4 h respectively,cells of group CC were exposed to 95%O 2-5%CO 2 mixture air,and were then cultured for another 24 h.The invasive activity of cells was determined by Transwell assay.The migration of cells was evaluated by wound scratch assay.The expression of MMP-2 and MMP-9 in cells were detected by ELISA.Thirty-two C57BL/6 mice were divided into four groups (n = 8):group control (CM),group 1% sevoflurane (SM1),group 2% sevoflurane (SM2),and group 3% sevoflurane (SM3).LLC cells of group SC1-3 were injected into caudal vein of mouse in group SM1-3 respectively.Cells of group CC were injected into mouse of group CM.Lung metastasis inhibitory rates were evaluated after 3 weeks. Results Compared with group CC,the invasive activity and migration of cells in group SC1-3 were decreased significantly,group SC1 >group SC2 >group SC3 (P <0.05 );the protein expression of MMP-2 and MMP-9 was significantly down-regulated with sevoflurane concentration increased,group SC1 >group SC2>group SC3 (P <0.05).Compared with group CM,lung metastasis inhibitory rates of group SM1-3 were increased significantly,group SM1 < group SM2 < group SM3 (P < 0.05 ). Conclusion Sevoflurane can inhibit the lung metastasis of mouse LLC cells,which maybe through down-regulating the expression of MMP-2 and MMP-9 in mouse LLC cells.

Objective To investigate the effects of serum from patients receiving isoflurane and sevoflurane on the invasion and migration ability of human lung adenocarcinoma cell line A549. Methods Twenty ASAⅠorⅡ lung cancer patients aged 40 ~ 68 yr undergoing radical surgery were randomly divided into sevoflurane group (SEV group, n = 10) and isoflurane group (ISO group, n = 10). The concentration of sevoflurane or isoflurane maintained 1.5 MAC during anesthesia. Ten healthy volunteers were selected as control group. Serum was separated from blood sample taken at the end of surgery. A549 cells were randomly divided into sevoflurane group (group SEV, n = 10), isoflurane group (group ISO, n = 10) and control group (group C, n = 10). Cells of SEV group and ISO group were treated with 10% serum as respect to anesthetics for 24 hours. Cells of group C were treated with serum of control group. The invasion ability of cells was evaluated by Transwell assay. The migration ability of cells was determined by wound healing assay. The expressions of MMP-2 and MMP-9 in A549 cells were detected by ELISA. Results Compared with group C and ISO group,the number of invasive cells in group SEV was reduced significantly (P < 0.05). The levels of MMP-2 and MMP-9 in group SEV were significantly decreased compared with those of group C and ISO group (P<0.05). Conclusion The serum of patients receiving sevoflurane anesthesia can attenuate the metastatic ability of A549 cells through inhibiting the expression of MMP-2 and MMP-9.

Objective To study complement receptor typeⅠ(CR1)activity of erythrocytes in pa-tients with SLE.Methods Using polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP),CR1rosette(RBC-CR1R)and immuno-complex rosette(RBC-ICR)on red cell,the ery-throcyte complement receptor I type(ECR1)genomic density polymorphism(HH type,HL type,LL type)and erythrocyte CR1immune activity were determined in32patients with SLE and in48normal individuals.Results It was found that HH type rate of ECR1density polymorphism in patients with active SLE was significantly lower(10/16,62.5%)than that(13/16,81.3%)in patients with stable SLE.The level of CR1immune activity in HH type was significantly higher than that in HL,LL type of SLE,and significantly dif-ferent from that in48normal individuals(P

Animals ; Disease Models, Animal ; Heart Rate ; Hypertension ; physiopathology ; Rats ; Rats, Wistar

Humans ; Pulmonary Fibrosis ; metabolism ; pathology ; Signal Transduction ; physiology ; Transforming Growth Factor beta1 ; metabolism ; Wound Healing ; physiology