Intravenous injection of 13-n-Propyl-Palmatine 8 mg ? kg-1 reduced markedly the incidence of VF induced by chlorofom in the mice,elevated the threshold doses of Ouabain induced VP,VT,VF,CA in guinea pigs. Iv 1, 3mg ? kg-1 reduced signifi- cantly the incidence of arrhythmia induced by CaCl2 in the mice,shortened the total duration of arrhythmia induced by BaCl3 in therats. However, it was not so effective on A-conitine - induced arrhythmia in the rats. In addition, 13 - n - Propyl - Palmatine elevated significantly the activities of Na+, K+ - AT-Pase in the myocardial cellular membranes of rats.

Qinghouliyan Chongji can markedly inhibit the swelling of ear induced by xylene in mice and the edema ofhind paw induced by egg white in rats. It can also decrease the weight of cotton pellet granuloma in rats.Numbers of writhing responses induced by acetic acid was reduced and pain threshold was elevated in mice bythis preparation,beside its bacteriostatic effects.

Objective To investigate the long-term efficacy of autologous stem cell transplantation for systemic lupus erythematosus (SLE). Methods Long-term follow up of 48 SLE patients with autologous stem cell transplantation were studied. All patients were followed up for 10 years. Among the patients, 24 cases were treated with purified CD34+ cells transplantation and 24 cases were treated with non-CD34+ cell transplantation. Comparison between groups was performed by x2 test. Results Among 5 dead patients, 4 died of transplantation related complications including 3 cases treated with CD34+ transplantion. The survival rate of those patients with more than 10 years duration of lupus was 90%(43/48). Among 43 patients, 7 had disease flare, 6 were treated with non-CD34+ cell transplantation. Eight patients went to college, 26 returned to normal life and 4 of them had children. Conclusion The long-term effect of SLE treated with autologous hematopoietic stem cell transplantation and anti-thymocyte globulin (ATG) is good. The recurrence of CD34+ transplant patients is lower than those treated with non-CD34+ transplantation. The quality of life in SLE patients treated with transplantation is better than those treated with conventional therapy.

BACKGROUND: Infusion of hemopoietic stem cell from donors can promote the chimeric formation and induce specific immunologic tolerance in the allograft recipients. However, the pretreatment for cell transplantation has great toxicity to recipients. So immunosuppressant combined bone marrow infusion is introduced to anti graft versus host reaction. OBJECTIVE: Based on microchimerism, to study the security and associativity of chimera formation induced by kidney-bone marrow transplantation and immunologic tolerance.DESIGN, TIME AND SETTING: The contrast observation was performed at the department of urinary surgery, The Third People's Hospital of Zhengzhou City from January 1998 to December 2005.PARTICIPANTS: According to ABO/Rh blood type and HLA matching, 96 female patients with chronic renal failure and waiting for kidney transplantation were divided into 2 groups, In the combination group, patients received kidney combined bone marrow transplantation; the other uremia patients received the other kidney of cadavers were served as control group. The donors were 48 healthy males. METHODS: Bone marrow of donors was collected simultaneously with kidney obtain and preserved with cryoprotectant at -198 ℃ in nitrogen canister. After kidney transplantation, large dose of anti-human lymphocyte immune globulin were used for 2 weeks, then (0.9-2.5)×10~8/kg mononuclearcell was reinfused. PCR-SRY was used to identify donor derived cell-chimerism. Lymphocyte subgroup of recipients was determined by blood test; and interleukin 10 was measured by enzyme linked immunosorbent assay; in addition, the mass concentration of tumor necrosis factor α and tumor necrosis factor β was detected. MAIN OUTCOME MEASURES: Chimerism, lymphocyte subsets and cytokines were detected at various time points following transplantation. Simultaneously, the transplantation results and complication status of recipients were observed. RESULTS: The positive rate of chimera in the combination group was greater than that of the control group (P < 0.05). The 3-year follow-up showed that incidence differences of acute rejection between recipients with positive chimera and recipients with negative chimera had significance (13%, 35%, P < 0.05). There was no graft versus host disease occurred in the combination group. CONCLUSION: Kidney-bone marrow transplantation can augment chimerism in early postoperative period, and significantly reduce the rate of acute rejection, which is safe and beneficia1to induce specific immunologic tolerance in the renal allograft recipients.

Objective To explore the protective effects of dipeptidyl peptidase-4 inhibitor (DPP-4I) on AD-like neurodegenerative changes and its mechanism. Methods The human neuroblastoma cell line SH-SY5Y on the logarithmic phase was divided into six groups:control group (CON group, treated with PBS contained 1‰DMSO for 12 h), wortmannin intervention group (W group, treated with 0.03 μmol/L wortmannin for 12 h), DPP-4I intervention group (DPP-4I group, treated with 10μmol/L DPP-4I for 12 h), both DPP-4I and wortmannin intervention group (DPP-4I+W group, pre-treated with 10 μmol/L DPP-4I for 2 h, then 0.03 μmol/L wortmannin for 12 h), DPP-4I, wortmannin and Ex9-39 intervention group (DPP-4I+W+Ex9-39 group, pre-treated with 10μmol/L Ex9-39 for 2 h, then 10μmol/L DPP-4I for 2 h followed by 0.03μmol/L wortmannin for 12 h), and Ex9-39 intervention group (Ex9-39 group, treated with 10μmol/L Ex9-39 for 12 h). MTT assay was used to detect the cell vitality. Western blot assay was used to detect the level of total tau protein (tau-5) and phosphorylated tau at different sites (pSpS199/202, pT231 and pS396), the level of phosphorylated neurofilaments (NF-H, NF-M) and phosphorylation of critical enzyme in PI3K/Akt/GSK-3β signaling pathway. Results (1) The cell vitality decreased, the levels of pSpS199/202, pT231, pS396 and NF-H/M increased significantly in W group than those in CON group. However, comparing with CON group, the above mentioned parameters reversed in DPP-4I group. Comparing with W group, the cell vitality increased and phosphorylated levels of above mentioned indices were decreased in DPP-4I+W group. (2) The cell vitality showed a decline trend while the levels of phosphorylation tau at three different sites and NF-H/M were higher in Ex9-39 group than those in CON group. Comparing with DPP-4I+W group, the results of the phosphorylated levels showed the same changes in DPP-4I+W+Ex9-39 group. (3) Comparing with CON group, the expression levels of phosphorylated PI3K, Akt and GSK3β increased significantly in DPP-4I group, while those decreased in W group. Additionally, the expression levels of phosphorylated PI3K, Akt and GSK3β were significantly increased in DPP-4I+W group than those in W group. Conclusion DPP-4I can enhance the level of GLP-1 and activate PI3K/Akt/GSK-3βinsulin signaling pathway to improve the hyperphosphorylated tau and NFs induced by wortmannin, and to protect AD-like neurodegeneration.

Objective To study the radioprotective effect of indole-3-carbinol (I3C) acid condensation products.Methods Cell colony formation assay was used to determine cell survival rate,and Western Blot assay was employed to measure protein expression.Results Seven kinds of the I3C acid condensation products showed different radioprotective effect on normal fibrous epithelial cells 184A1,among which 24 h pre-treatment of CTET (1 μmol/L),LTET (1 μmol/L),HI-IM (1 μmol/L) and 3,3'-diindoly methane (DIM) (0.3 μmol/L) showed significant increase of cell survival rate following irradiation with γ-ray,and the difficence was statistically significant (P＜0.05,P＜0.01).However,CT (1 μmol/L),LTr-1 (1 μmol/L) and ICZ (1 μmol/L) showed no effect on cell survival rate caused by radiation (P＞0.05).Furthermore,CTET,LTET,HI-IM and DIM activated the phosphorylation of ATM,BRCA1 and NBS1 proteins.HI-IM significantly decreased radiation-caused cell death and apoptosis.Conclusions CTET,LTET,HI-IM,and DIM can significantly reduce the radiosensitivity in 184A1 cells,and the mechanism may be related to the regulation of DNA damage and the repair of protein phosphorylation.

Objective To study the correlation of cleft lip and palate transmembrane 1 like(CLPTM1L)expression and radiosensitivity of lung cancer cells.Methods Thiazolyl blue tetrazolium bromide(MTT) and cell colony formation assays were used to determine cell growth and survival.Western Blot assay was employed to measure protein expression.Results The results demonstrated a negative correlation between the CLPTM1L expression level and radiosensitivity of lung cancer cells.A lower radiosensitivity in lung cancer cells containing high level of CLPTM1L expression,and vice versa.Enforced expression of CLPTM1L resulted in a significant reduction of radiosensitivity in lung cancer cells irradiated with γ-rays.On the contrary,a marked elevation of radiosensitivity was observed in lung cancer cells transfected with CLPTM1L siRNA.Conclusions CLPTM1L may be a novel target gene in mediating radiosensitivity of lung cancer cells.

Objective To understand the epidemiologic characteristics and pathogenic virus of cases of viral diarrhea in sentinel hospitals in Liaoning Province.Methods From Jan 2009 to Dec 2011,639 stool samples from sentinel hospitals of Liaoning Province were collected.Rotavirus,human calicivirus,astrovirus and adenovirus were detected by polymerase chain reaction and reverse transcriptase-polymerase chain reaction.The data analysis used chi-squanetest and Fisher's exact test.Results Rotavirus,human calicivirus,astrovirus and adenovirus were detected in 15.96 ％,11.25 ％,1.25％ and 0.31％ of the 639 specimens,respectively.G3 was the most prevailing serotype and P[8] was the most common genotype among 101 group A rotavirus isolates.One strain of group C rotavirus was also detected,which was reported for the first time from Liaoning Province.Phylogenetic analysis showed that this group C rotavirus JX407109 in the present study had the closest genetic relationship with the outbreak strain AB648916 from Japan,with nucleotide sequence consistency of 99 ％.Among the 72 samples of human calicivirus,70 samples were norovirus with G Ⅱ/4 being the predominant genotype,and 2 samples were sapovirus.Astrovirus was detected in 8 samples,most of which were genotype 1.Adenovirus was detected in 2 samples,and both were genotype 41.High incidences of viral diarrhea were noted during the months from December to next year February,and children under 5 years of age had high incidence of rotavirus and astrovirus,while the incidence of calicivirus were similar among different age groups.Conclusions The predominant pathogens of viral diarrhea in Liaoning Province are group A rotavirus and calicivirus.Notably,the group C rotavirus in Liaoning Province shares high genetic consistency with the outbreak strain from Japan.

Objective The goal of the present study was to determine the effects of different location perfora-tions on the middle ear transfer functions by measuring the velocity and pattern of the tympanic membrane vibration in guinea pigs with intact and perforated TM .Methods A laser Doppler vibrometer was used to measure the sound transmission properties on the movement of the tympanic membrane on 6 fresh temporal bones of guinea pigs in the frequency range of 0 .5~8 kHz at 90 dB SPL .The velocity was measured at three points on the manubrium before and after a different location perforation was made with a 20-gauge needle(1 .1 mm diameter) .The locations of the perforations were in anterior -inferior quadrants of left ears and in posterior -inferior quadrants of right ears .And the velocity was measured from 6 poins with the intact tympanic membrane .Results The highest velocities were re-corded at the site of inferior umbo throughout the frequency range .The manubrium vibration velocity losses were noted in the perforated ears below 1 .5 kHz ,the velocity losses were smaller above 1 .5 kHz ,and the maximum ve-locity loss was about 7 dB at 500 Hz with the posterior -inferior quadrant perforation .Although there was a trend for anterior-inferior perforations to show a slighter loss than posterior -inferior perforations in velocity below 1 .5 kHz ,no statistical differences in velocity loss were found between different perforations .The average ratio of short process velocity to umbo velocity at all frequencies was approximately 0 .5 ,and the ratios were found no systematic differences before and after perforation at almost all frequencies from different perforations .Conclusion The manu-brium vibration velocity losses from TM perforation are frequency -dependent and the largest losses occur at the lowest sound frequencies .Different sites of small perforation have not any important effects on middle ear sound transmission .

Objective To investigate the staphylococcal chromosomal cassette mec (SCCmec)genotypes and molecular epidemi-ology of hospital-acquired MRSA.Methods A total of 26 non-duplicate MRSA isolates with the same resistant pattern were studied.SCCmec genotyping was analyzed by multiplex PCR.Repetitive element polymerase chain reaction (Rep-PCR)tech-nique was used to analyze the homology between these strains based on the DiversiLab system.Results The most common geno-type of these MRSA strains was SCCmec-III (84.6%).Two strains belonged to SCCmec-II and 1 SCCmec-IV.SCCmec-I strain was not identified.Based on the results of DiversiLab analysis,these MRSA strains were classified into 10 groups.The genetic similarity ranged from 40% to 100% among these SCCmec types.The two strains of SCCmec-II belonged to the same subtype.The similarity coefficient was higher than 90% for one strain of SCCmec-III subtype 1.The 4 strains of SCCmec-III subtype 3 were grouped into the same set with a similarity coefficient of > 95%.The MRSA strains of SCCmec-III subtype 2 was divided into 5 groups (similarity co-efficient > 90%).Conclusions SCCmec-III is the major genotype of MRSA isolates in our hospital.MRSA strains may spread in some wards.Clinicians and infection control department should pay close attention to this issue.