Aneuploidy ; DNA, Neoplasm ; analysis ; genetics ; Flow Cytometry ; methods ; Humans ; Lymphoma ; diagnosis ; genetics ; immunology ; Lymphoma, B-Cell ; diagnosis ; genetics ; immunology ; Lymphoma, T-Cell ; diagnosis ; genetics ; immunology ; Receptors, Antigen, T-Cell ; analysis ; genetics

Objective To investigate the clinical therapeutic effect of acupuncture on pulmonary infection after acute cerebral infarction.Methods Seventy patients with pulmonary infection after acute cerebral infarction were randomly allocated to treatment and control groups, 35 cases each. The control group received routine medication and the treatment group, acupuncture in addition. Pre-treatment and post-treatment National Institutes of Health Stroke Scale (NIHSS) scores and clinical pulmonary infection scores (CPIS) were compared between the two groups. The correlation between the NIHSS score and the CPIS score was observed.Results There were statistically significant pre-/post-treatment differences in the NIHSS score and the CPIS score in the two groups (P<0.05,P<0.01). There were statistically significant post-treatment differences in the NIHSS score and the CPIS score between the treatment and control groups (P<0.05). The correlation between the NIHSS score and the CPIS score was low in the treatment group after treatment (r=0.417,P<0.05).Conclusions Acupuncture plus medication is an effective way to treat pulmonary infection after acute cerebral infarction. It can improve the NIHSS score and the CPIS score in the patients.

Objective To partially purify the toxic factor secreted by A. corymbifera and to analyze the mechanism of A. corymbifera-induced human umbilical vein endothelial cell (HUVEC) apoptosis. Methods Glycoprotein secreted by A. corymbifera was purified by Con A Lectin chromatography. The influence of different protein fractions on HUVEC apoptosis was determined by flow eytometer. Both denaturing and nondenaturing deglycosylation of purified glycoprotein was performed and the ability of the protein moiety and carbohydrate moiety to induce HUVEC apoptosis was evaluated respectively. Activation of related caspases during A. corymbifera-induced apoptosis was analyzed by Western blot. The role of caspase-8 and -9 in HUVEC apoptosis was investigated using caspase inhibitors. Caspase inhibitors were used to stop the suppression of HUVEC viability by XTT assay. Results Flow cytometric analysis shows the total protein as well as the glycoprotein fraction of A. corymbifera may induce HUVEC apoptosis in a dose dependent manner. In contrast, similar activity was not observed in the non-glycoprotein fraction. Neither deglycosylated protein nor carbohydrate moiety is able to induce HUVEC apoptosis alone. In the apoptotic signaling pathway, caspase9, caspase-3 and cytochrome C were activated significantly, except caspase-8. Moreover, caspase-9 inhibitor, instead of caspase-8 inhibitor, completely abrogates A. corymbifera-induced HUVEC apoptosis. Caspase9 and caspase-3 inhibitors completely waived the suppression of HUVEC viability by A. corymbifera. Conclusion Glycoprotein secreted by A. corymbifera is associated with HUVEC apoptosis. Intact glycoprotein is essential for the apoptotic progress. Intrinsic apoptotic signaling pathway mediates A. corymbifera-induced HUVEC apoptosis.

Objective To analyze the influence of Absidia corymbifera on cell activity of human umbilical vein endothelial cells (HUVEC) as well as the related mechanism. Methods Time course analy sis of the influence of A. corymbifera on cell viability of HUVEC was determined by cell counting after Trypan blue staining. Apoptosis of HUVEC induced by A. corymbifera was observed under fluorescence microscope after treatment with apoptosis detection kit. Time course analysis of HUVEC apoptosis induced by A. corymbifera was detected by flow cytometry quantitatively. Effect of caspase-3 inhibitor on A. corymbifera associated apoptosis was also evaluated at the same time. Activation of caspase-3 inside HUVEC was detected by Western blot. Results A. corymbifera inhibited cell viability of HUVEC in a time-dependent manner by Trypan blue staining. After 12 hours' co-culture, A. corymbifera began to show suppression on cell viability (P =0. 001 ). Fluorescence microscope observation revealed A. corymbifera induced apoptosis of HUVEC instead of necrosis. Flow cytometry analysis showed A. corymbifera induced apoptosis of HUVEC in a time-dependent manner. A. corymbifera began to show obvious effect on apoptosis after 12 h co-culture (P =0.0036). Moreover, A. corymbifera-associated apoptosis was almost abrogated completely by caspase-3 inhibitor. Western blot analysis demonstrated that A. corymbifera triggered the activation of caspase-3 inside HUVEC in a timedependent fashion. Conclusion A. corymbifera induces apoptosis of HUVEC in vitro. Such apoptotic signal is transmitted through caspase cascade reaction.

Objective To investigate in vitro activity of antimicrobial agents against Enterococcus spp . isolated from clinic specimens in a hospital.Methods 188 Enterococcus spp . isolates from specimens sent by clinic depart-ments in June 2013-July 2014 were identified and performed antimicrobial susceptibility testing.Results Of 188 En-terococcus spp . isolates,119 were Enterococcus faecium (E.faecium),60 were E.faecalis ,and 9 were E.avium, these strains were mainly isolated from urine (34.57%)and blood specimens (19.15% ).No daptomycin and linezolid-resistant strain was detected;resistant rates of E.faecium to vancomycin was 1 .68%,to penicillin, ampicillin,high concentration gentamycin,erythromycin,and levofloxacin were all > 70%;except tetracycline, resistant rates of E.faecalis to the other antimicrobial agents were all lower than E.faecium,resistant rates of E. faecalis to penicillin and ampicillin were 16.67% and 13.33% respectively.Conclusion Daptomycin has high activity against Enterococcus spp . in this hospital.

Objective To investigate the relationship between single-nucleotide polymorphisms of IVS13-98G/T of human protection of telomeres 1 (hPOT1) genes and gastric cancer. Methods A total of 168 patients with gastric cancer (gastric cancer group) who had been admitted to Wuwei Cancer Hospital, Wuwei People's Hospital and Liangzhou District Hospital from December 2005 to July 2006 and 156 healthy people (control group) were genotyped by polymerase chain reaction (PCR) and PCR-restriction fragment length polymorphism (PCR-RFLP) method, and the relationship between the distribution of genotypes and the risk faetors of gastric cancer was analyzed. The distribution of genotypes and allele frequency between the 2 groups were compared by chi-square test. Hardy-weinberg equilibrium test was adopted to determine whether the distribution of genotypes and allele frequency were representative. Relative risk and 95% confidence interval were calculated by non-conditional Logistic regression model. Results The frequencies of genotypes GG, GT and TT of hPOT1IVS13-98 G/T were 21.4%, 41.7% and 36.9% in gastric cancer group, and 24.4%, 51.9% and 23.7% in control group. The allele frequencies of G- and T-allele were 42.3%, 57.7% in gastric cancer group, and 49.7%, 50.3% in control group. There was no significant difference in allele frequencies of G- and T-allele between the 2 groups (X~2=3.58, P>0.05). Compared with genotype TT, the relative risks for GT and GG were 0.439 (95% CI: 0.251-0.767, P < 0.05) and 0.514 (95 % CI: 0.264-0.999, P=0.05). There was no influence of different genotypes of hPOT1IVS13-98 G/T, sex, smoking history, family history of cancer on gastric cancer. Conclusion Single-nucleotide polymorphisms of IVS13-98G/T of hPOT1 may be a protective factor of gastric cancer.

Background RGD is a small molecular multiple peptide containing Arg-Gly-Asp with an important role in inhibiting the adhesion,migration and neovascularization of tumor.Our previous study determined that RGD can suppress the adhesion and proliferation of lens epithelial cells(LECs),and RGDRGD may be of a stronger effect. Objective Present study was to investigate and compare the effect of RGDRGD peptide on the proliferation and adhesion of immortalized human LECs(HLEB-3)in vitro. Methods Human LECs harvested by trpsin-EDTA were suspended in DMEM medium with serial dilutions of RGD peptide and RGDRGD peptide(from 1000 mg/L to 250 mg/L)at 37℃ for 15 minutes as experimental group,and the HLECs cultured by common culture medium were used as the control group.The cells were then seeded into the 96-well plates with precoated fibmnectin (FN)and I collagen at the density of 2×104/ml.MTT stainingcolorimetry was used to measure the adhesion rates of lens epithelial cells cultured in different concentrations RGDRGD and RGD peptides after 1 hour.Cells were seeded into the 96-well plates for 24 hours at 37℃ in 5% CO2.Medium was then replaced with DMEM overnight.Subsequently,the cells were treated with serial dilutions of RGD and RGDRGD(from 2000 mg/L to 250 ms/L)dissolved in DMEM medium plus 20% fetal bovine serum.The inhibition of RGDRGD and RGD on the adhesion and proliferation of Human LECs was analyzed by MTT aher 24,48 and 72 hours. Results The inhibition rate of RGD peptide on the adhesion of LECs was gradually enhanced with the increase of concentration with the significant difference among the different concentrations groups(F=1089.56,P＜0.01),and the statistically significant elevation in inhibitory rate was found in RGDRGD peptide compared with RGD peptide(P＜0.01).The inhibition rate of RGDRGD peptide on the proliferation of LECs wag gradually increased with the increase of concentration with the significant difference among the different concentrations groups with a strongest effect in 1000 ms/L group(F=127.31,P＜0.01),and the much stronger inhibition Wag Been in RGDRGD peptide(F=1589.85,P＜0.01).The suppression rate of RGDRGD on LECs proliferation Wag much stronger with the prolong of time(F=1606.43,P＜0.01). Conclusion RGDRGD peptide and RGD peptide have inhibitory effect on adhesion and proliferation of human LECs in a dose-and time-dependent manner.Effect of RGDRGD peptide is much stronger than RGD peptide.These results imply that RGDRGD peptide and RGD peptide have the important role for prevention of PCO.

Objectives To investigate the expression and diagnostic value of 14-3-3 protein in brains of patients with sporadic Creutzfeldt-Jakob disease(sCJD).Methods 14-3-3 protein was immunohistochemically analyzed in tissue from the frontal lobe of 5 patients with sCJD and 4 non-CJD eases Using 14-3-3 ?and ?antibodies with reference to the results of KB,GFAP and PrP detection.Results The expressions of 14-3-3 protein in five brains of sCJD were more obviously,mostly in gray matters and astrocytes in three cases.The concentration was related to PrP deposition type,but not related to prion protein genotype.Except few expression of 14-3-3 protein in neurous of two cases of acute contusion,there were no expression in the other two cases in control group.Conclusions The expression of 14-3-3 protein in brain is useful to pathological diagnosis of CJD.

Objective To investigate the expressions of fatty acid-binding protein 5 (FABP5)and dihydroli-poamide dehydrogenase(DLD)in skin lesions of symmetrical acrokeratoderma(SAK), and to explore their significance. Methods Biopsy specimens were obtained from skin lesions on the wrists and perilesional skin of 9 patients with SAK, and from normal skin in the wrists of 9 healthy volunteers (control group). Reverse transcription PCR (RT-PCR)and immunohistochemical staining were performed to measure the expressions of FABP5 and DLD in these specimens. Results RT-PCR showed no significant differences in the mRNA expressions of FABP5 or DLD between lesional, perilesional and normal control skin specimens(both P > 0.05). Immunohistochemically, there was a significant increase in the extent and intensity of staining for FABP5 in SAK lesions. Concretely speaking, FABP5 was strongly expressed in the stratum corneum, granular and spinous layers in SAK lesions, but weakly expressed in the stratum corneum, granular and spinous layers in perilesional skin, and only in spinous and basal layers in normal control skin. The expression of DLD decreased in SAK lesions, and was observed only in the stratum corneum and spinous layer in a few cases of SAK. However, the full-thickness epidermis stained positive for DLD in perilesional skin, with the nuclei and cytoplasm both stained deep brown. Conclusion The overexpression of FABP5 in SAK lesions may participate in dysdifferentiation of keratinocytes, while the down-regulation of DLD expression suggests an imbalance in energy metabolism.

Objective To analyse expression levels of protein kinase C θ (PKC θ ) and its association with Th1/Th2,Tc1/Tc2 cytokines in peripheral blood mononuclear cells (PBMC) of patients with myelodysplastic syndromes and aplastic anemia (AA),and understand the pathogenesis of MDS and AA.Methods Fourteen patients with MDS-RA, fifteen patients with AA, and thirty health controls of PBMC were collected.mRNA expression levels of PKC θ were measured by RTQ-PCR,and the expression levels of Th1/Th2,Tc1/Tc2 cytokines were measured by the flow cytometry. Results The expression PKC θ mRNA (AA group:23.54±1.01,MDS group:23.76±1.58 ;health control group:27.12±1.12, P=0.004) and Th1and Tc1cytokines were statistically significant of among groups (all P＜0.05). Th2 and Tc2 cytokines were no statistical difference among groups (allP＞0.05). There were no statistical difference in the PBMC of PKC θ mRNA and Th1/Th2,Tc1/Tc2 cell cytokine (allP＞0.05) between MDS and AA.Conclusions The expression levels of PKCθmRNA and Th1,Tc1cells correlated cytokine in MDS and AA patients of PBMC are increases.