Adolescent ; Adult ; Female ; Histiocytic Necrotizing Lymphadenitis ; diagnosis ; therapy ; Humans ; Lymph Nodes ; Male ; Middle Aged ; Neck ; Young Adult

Abstract Objective:FSM-2117 and FS-5416 are two bivalent hybrid strains of S.flexneri and S.sonnei, constructed by this laboratory-The FS-5416 expresses four invassive plasmid antigens(IpaA、IpaB、IpaC and IpaD) and has a good contact heamolysis activity(CHA+ ), butFSM-2117 hasn' t. To observe the immunogenicity of Shigelk vaccines through three different mucosal administration rout, the changes of ASCin the spleen and Peyer's patch(PP) , mesenteric lymph nodes(MLN) lymphocytes are detected.Methods:BALB/c mice were divided intothree groups, 20 mice per group. Mice were immunized respectively with the Ipa+ or Ipa- vaccines(4 x 10~7 CFU) three times with an intervalof two weeks by intranasal、intragastric or intraintestinal administration routs. The spleen , PP , MLN lymphocytes were isolated of seventh dayat random after immunization. An BA-EIISASPOT was done to account the numbers of ASC.Results:The numbers of SIgA and SIgG ASC ofspleen , PP , MLN lymphocytes of intranasal and intraintestinal group were significantly increased . Significant difference were only observed inthe number of spleen lymphocytes SIgA and SIgG ASC of intranasal group between Ipa+ and Ipa- . Conclusion:Two bivalent Shigelk vaccinescan induce spleen and GALT immunity reaction by nasal or small intestinal mucosal in a low dosage compared with intragastric rout (about 1/20). Ipa can significantly increased the number of spleen lymphocytes SIgA and SIgG ASC of intranasal group.

Aim To observe whether DHEA has enhancing effect on DbcAMP -induced differentiation of NG108-15 cells, including neurite outgrowth, and study its possible mechanisms. Methods NG108-15 cells (a h ybrid cell line of mouse neuroblastoma and rat glioma) were used as a substitute for primary culture neuron in vitro. The morphology of NG108-15 cells was o bserved and neurite outgrowth was determined in an inversed microscope after treatme nt with various drugs. Gelatin-substrate gel electrophoresis was used to detect gelatinases (MMP-9 and MMP-2). Results ① DHEA and DbcAMP inhibited NG108-15 proliferation.②DHEA had enhancing effect on the promoting activity of neuronal differentiation and neurite outgrowth by DbcAMP. DbcAMP could increase neurite elongation of NG108-15 cells. Compared with this, the combined treatment with DHEA and DbcAMP significantly enhanced the neurite outgrowth of NG108-15 cells, including neurite length and numbers of cells with neurite, in a DHEA dose-dependent manner. ③ MMPs were involved in neuronal differentiation. DbcAMP induced the increase in MMP-9 and MMP-2 activities and such elevation was enhanced by DHEA in a dose-dependent manner. Conclusion DHEA enhances the effect of DbcAMP in promoting the neurite outgrowth of NG108-15 cells, which might be related to the increase in MMP-9 and MMP-2 activities.

Objective To investigate Treg and Th17 cell numbers in the peripheral blood of patients with unexplained recurrent spontaneous abortion (URSA),with an aim to elevate their potential for predicting pregnancy outcomes.Methods Peripheral blood was collected from 60 URSA pregnant women and 56 healthy pregnant women during their first trimester in the Department of Reproductive Endocrinology of the Second Affiliated Hospital of Soochow University from January 2014 to June 2015.The counts of regulatory T cell (Treg),T helper cell 17 (Th17),CD4 positive T cell (CD4+ T cell) and total lymphocytes in the peripheral blood were determined by flow cytometry.Calculated the ratios of Treg/CD4+ T cells,Treg/total lymphocytes,Th17/CD4+ T cells,Th17/total lymphocytes and Treg/Th17,then the pregnancy outcomes were followed up.According to the different pregnancy outcomes,the patients were divided into three groups: URSA successful delivery group (23 cases),URSA re-miscarriage group (37 cases) and normal successful delivery group (44 cases).Non-parametric test were used to compare the differences between groups.Results There were no difference between the URSA re-miscarriage group and URSA successful delivery group in the CD4+ T cell counts[(1 570.16±519.56) vs (1 571.83±450.37),t=0.01,P=0.99]and total lymphocytes[(4 497.11±975.48) vs (4 558.52±1 032.54),t=0.23,P=0.82].However,the ratios of Treg/CD4+ T cells[(1.09±0.62) vs (3.32±2.30),t=4.55,P=0.000 1],Treg/total lymphocytes[(0.42±0.24) vs (1.31±1.14),t=3.67,P=0.001 3]and Treg/Th17[(0.56±0.41) vs (2.51±2.38),t=3.89,P=0.000 8]in the URSA miscarriage again group were significantly lower whereas the ratios of Th17/CD4+ T cells[(1.85±0.92) vs (0.93±0.36),t=5.40,P<0.001]and Th17/total lymphocytes[(0.64±0.31) vs (0.31±0.14),t=5.52,P<0.001]were significantly higher.Similarly,There were no difference between the URSA re-miscarriage group and normal successful delivery group in the CD4+ T cell counts[(1 570.16±519.56) vs (1 566.86±651.36),t=0.03,P=0.98]and total lymphocytes[(4 497.11±975.48) vs (4 720.91±1 572.92),t=0.78,P=0.44].However,the ratios of Treg/CD4+ T cells[(1.09±0.62) vs (3.17±1.81),t=7.16,P<0.001],Treg/total lymphocytes[(0.42±0.24) vs (1.03±0.51),t=7.08,P<0.001]and Treg/Th17[(0.56±0.41) vs (1.87±1.68),t=4.98,P<0.001]in the URSA re-miscarriage group were significantly lower whereas the ratios of Th17/CD4+ T cells[(1.85±0.92) vs (1.12±0.50),t=4.29,P<0.001]and Th17/total lymphocytes[(0.64±0.31) vs (0.36±0.15),t=5.01,P<0.001]were significantly higher.Conclusions Treg and Th17 cell counts in the peripheral blood of patients with URSA might be useful in predicting their pregnancy outcomes.The decrease of Treg cell counts and the increase of Th17 cell counts might imply another abortion.

Protein ubiquitination is one of the most important and widely exist protein post-translational modifications in eukaryotic cells, which takes the ubiquitin and ubiquitin chains as signal molecules to covalently modify other protein substrates. It plays an important roles in the control of almost all of the life processes, including gene transcription and translation, signal transduction and cell-cycle progression, besides classical 26S protesome degradation pathway. Varied modification sites in the same substrates as well as different types of ubiquitin linkages in the same modification sites contain different structural information, which conduct different signal or even determine the fate of the protein substrates in the cell. Any abnormalities in ubiquitin chain formation or its modification process may cause severe problem in maintaining the balance of intracellular environment and finally result in serious health problem of human being. In this review, we discussed the discovery, genetic characteristics and the crystal structure of the ubiquitin. We also emphasized the recent progresses of the assembly processes, structure and their biological function of ubiquitin chains. The relationship between the disregulation and related human diseases has also been discussed. These progress will shed light on the complexity of proteome, which may also provide tools in the new drug research and development processes.
Humans ; Proteome ; Ubiquitin ; chemistry ; Ubiquitination

Animals ; Chromatography, Gas ; methods ; Hexanones ; blood ; Mice

To investigated the toxin genes distribution and molecular characteristics of Vibrio parahaemolyticus from pa‐tients in Ningbo ,V .parahaemolyticus strains were collected from patients with food poisoning and diarrhea .Thermostable di‐rect hemolysin gene (tdh) and TDH‐related hemolysin gene (trh) were detected by polymerase chain reaction (PCR) .Molecu‐lar characteristics were acquired by multi‐locus sequence typing (MLST ) .Of 248 clinical strains were isolated from 2006 to 2012 .Forty‐eight strains were selected to detect virulence genes and MLST genotyping .Forty‐two isolates were detected as tdh+ and 11 isolates were detected as trh+ .There were 9 STs and one undifferentiated type in Ningbo clinical strains .Thirty‐two strains were classified into ST3 ,5 strains into ST265 and 3 strains into ST120 .ST265 was found in Ningbo strains com‐pared with strains from other regions of China .Strains with tdh+ accounted for the majority in Ningbo clinical strains .Twen‐ty‐five strains of ST3 clone were tdh+ /trh‐.There were 9 STs coexsited in Ningbo clinical strains .ST3 clone was dominant , followed by ST265 and ST120 .Strains with tdh+ /trh‐were dominant in the ST3 clone .The unique ST262 was found in Ning‐bo clinical strains .

Objective To analyze the clinical efficacy of daily online cone-beam computed tomography (CBCT)-guided stereotactic body radiation therapy (SBRT) for primary and metastatic lung cancer and its related factors.Methods From May 2009 to May 2013,36 patients with lung cancer were treated with SBRT,including 24 patients with primary lung cancer and 12 patients with metastatic lung cancer.The biologically effective dose at 10 Gy was ≥ 100 Gy in 85.7％ of 42 lesions.Before each delivery,CBCT was acquired,and online automatic or manual registration was performed to make the tumors on CBCT within the planning target volume/primary gross tumor volume;the setup threshold was not set,and the couch was moved for correction.Results The 1-,2-,and 3-year sample sizes were 36,29,and 26,respectively.The 1-,2-,and 3-year local control (LC) rates were 96％,89％,and 72％,respectively.The 1-,2-,and 3-year cancer-specific survival (CCS) rates were 82％,74％,and 64％,respectively.The 1-,2-,and 3-year overall survival (OS) rates were 78％,64％,and 53％,respectively.Univariate analysis found no factors associated with LC.Multivariate analysis revealed no factors associated with OS.Both univariate and multivariate analyses showed that only tumor location (central type or peripheral type) was associated with CCS;the mean values (95％ confidence intervals) of CCS in patients with central-type and peripheral-type lesions were 21.4 months (13.2-29.6 months) and 42.3 months (35.7-49.0months),respectively (P=0.024).Conclusions Daily online image-guided SBRT for primary or metastatic lung cancer can lead to a satisfactory LC.

Humans ; Immunoglobulin E ; Mouth Diseases ; Syndrome

OBJECTIVEThis study aimed to investigate the influence of coping material and porcelain firing on the marginal and internal fit of computer-aided design/computer-aided manufacturing (CAD/CAM) of zirconia ceramic implant- and titanium ceramic implant-supported crowns.

METHODSZirconia ceramic implant (group A, n = 8) and titanium metal ceramic implant-supported crowns (group B, n = 8) were produced from copings using the CAD/CAM system. The marginal and internal gaps of the copings and crowns were measured by using a light-body silicone replica technique combined with micro-computed tomography scanning to obtain a three-dimensional image. Marginal gap (MG), horizontal marginal discrepancy (HMD), and axial wall (AW) were measured. Statistical analyses were performed using SPSS 17.0.

RESULTSPrior to porcelain firing, the measurements for MG, HMD, and AW of copings in group A were significantly larger than those in group B (P < 0.05). After porcelain firing, the measurements for MG of crowns in group A were smaller than those in group B (P < 0.05), whereas HMD and AW showed no significant difference between the two groups (P > 0.05). Porcelain firing significantly reduced MG (P < 0.05) in group A but significantly increased MG, HMD, and AW in group B (P < 0.05) HMD and AW were not influenced by porcelain firing in group A (P > 0.05).

CONCLUSIONThe marginal fits of CAD/CAM zirconia ceramic implant-supported crowns were superior to those of CAD/CAM titanium ceramic-supported crowns. The fits of both the CAD/CAM zirconia ceramic implant- and titanium ceramic implant-supported crowns were obviously influenced by porcelain firing.