Codon ; Herpes Simplex ; virology ; Herpesvirus 1, Human ; genetics ; metabolism ; Humans ; Protein Binding ; Protein Biosynthesis ; Viral Proteins ; genetics ; metabolism

Animals ; Bone Marrow Cells ; cytology ; Cell Hypoxia ; Cells, Cultured ; Female ; Male ; Mesenchymal Stromal Cells ; cytology ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Rabbits ; Vascular Endothelial Growth Factor A ; genetics ; metabolism

ObjectiveTo determine the serum level of anti-aminoacyl-tRNA synthetase (ARS)antibody in patients with polymyositis (PM) and dermatomyositis (DM) and to investigate the value of anti-ARS antibody for diagnosing interstitial lung diseases(ILD) in patients with PM/DM compared with anti-Jo-1 antibody.MethodsSerum anti-ARS antibody concentrations were measured by ELISA in 109 adult PM/DM patients,20 patients with SLE,20 patients with RA and 50 healthy controls.T test,Mann-Whitney U test,chi-square test or Fisher exact test were used to compare the sensitivity and specificity for diagnosing ILD in PM/DM patients between anti-ARS antibody and anti-Jo-1 antibody.Moreover,McNemar test was employed to analyze the correlation between the clinical features and anti-MDA5 antibody in PM/DM patients.Results The serum positive rate of anti-ARS antibody was 37.9％,7.8％,10％,0 and 0 in PM/DM patients with ILD and without ILD,patients with SLE and RA and healthy controls,respectively.Serum anti-ARS antibody levels and positive rate in the PM/DM patients with ILD were significantly higher when compared with PM/DM patients without ILD,patients with SLE and RA and healthy controls (X2=-13.5,5.45,10.57,15.17; P＜0.01 ).Anti-ARS antibody presented a significantly higher sensitivity for diagnosing ILD in patients with PM/DM compared to anti-Jo-1 antibody (P＜0.01).The rate of fever and ILD were significantly higher in anti-ARS positive group than anti-ARS negative group(X2=12.55,13.53; P＜0.05),while heliotrope rash and shawl sign occurred more often in anti-ARS negative group(X2=5.7,5.8; P＜0.05).Additionally,follow-up study showed that the serum anti-ARS antibody were all negative in nine patients who died of PM/DM with ILD (P＜0.05).ConclusionSerum anti-ARS antibody is a stronger predictor for early diagnosis of PM/DM with ILD compared to anti-Jo-1 antibody.The detection of anti-ARS antibody can be widely applied to clinical practice.

Objective To investigate the macrophages (Mφ) phenotype mechanism in acute kidney injury caused by severe acute pancreatitis (SAP).Methods Sixty-four male Wistar rats were randomly divided into control group (SO) and SAP group (n =32 in each group).SAP rat model was made by retrograde cholangiopancreatic injection of 5％ sodium taurocholate.At 2,6,12 and 24 h after modeling,the samples of blood and kidney tissue were collected.The levels of blood urea nitrogen (BUN) and creatinine (Cr) were detected by using automatic biochemical analyzer.The expressions of IL-12,TNF-α,IL-10 and TGF-β mRNA of kidney tissue were detected by fluorescence quantitative polymerase chain reaction (QRT-PCR).The levels of CD68,iNOS and Arg-1 were measured by Western blot.Results In the SAP group at each interval,BUN and Cr concentrations were significantly higher than those of the control group (P ＜ 0.01,P ＜ 0.05) ; Compared with the control group,the expressions of IL-12,TNF-α,IL-10 and TGF-β mRNA in renal tissue of SAP group were significantly higher (P ＜ 0.01,P ＜ 0.05).In the SAP group,the levels of CD68,iNOS and Arg-1 were higher than those in the control group.Conclusions Inflammation and inflammatory imbalances may be pathological factors of acute kidney injury following SAP.

To investigate the effects of electro-acupuncture at Shuigou (DU26) on latency and amplitude of motor evoked potential (MEP) in rats after cerebral infarction.

Objective To evaluate the expression of interleukin-6 (IL-6) on peripheral blood and adenoid in children with chronic rhinosinusitis (CRS) and adenoidal hypertrophy ,to investigate the mechanism of IL-6 on the occurrence and development of CRS .Methods A total of 216 cases of hypertrophic adenoids were collected ,including 95 CRS children with hypertrophic adenoid (CRS group) ,70 children with allergic rhinitis and hypertrophic adenoid (AR group)and 51 children with hypertrophic adenoid (control group) .The plasma IL-6 concentrations were detected by ELISA ,and the expression and distribution of IL-6 in adenoid tissue was detected by immunohistochemistry .Results The plasma IL-6 level in CRS group was (49 .8 ± 8 .3)pg/mL ,significantly higher than that of in control group (33 .6 ± 6 .9)pg/mL and in AR group (35 .9 ± 5 .6)pg/mL ,differences had statistic significance ( P< 0 .05) .However ,there was no statistically significant difference between AR group and control group .Meanwhile ,the presence of IL-6 in adenoid tissue was mainly seen in inflammation cells and fibroblasts while less in mesenchymal cells ,there were statistical differences between CRS group and control group/AR group (P< 0 .05) ,but no statistical difference between AP group and control group(P> 0 .05) .Conclusion Among children with CRS ,expression of IL-6 whether in peri-plasma or in focal tissue was higher than those without CRS ,demonstrating that IL-6 may play an important role in the pathogenesis and developemnt of CRS in chil-dren .

Objective To investigate the clinical effects of high-density micropulse photocoagulation (HD-SDM) combined with intravitreal injection of ranibizumab for diabetic macular edema (DME).Methods Thirty-one patients (31 eyes) with DME were randomly divided into two groups.Group A (15 eyes) received HD-SDM combined with intravitreal injection of ranibizumab.Group B (16 eyes) only received intravitreal injection of ranibizumab.The best corrected visual acuity (BCVA) and central macular thickness (CMT) of the two groups before and after treatment were analyzed,and the annual injection times of the two groups were compared.Results The average annual injection times was 3.67 ± 1.11 in group A,and 9.12 ±2.63 in group B.The difference was significant between the two groups (t =2.05,P ＜ 0.05).There were significant differences in CMT before and after treatment in both groups (all P ＜ 0.05).There was no significant difference in CMT between the two groups(t =1.19,P ＞ 0.05).There were significant differences in BCVA before and after treatment in both groups (all P ＜ 0.05),but there was no significant difference before and after treatment between the two groups(all P ＞ 0.05).Conclusion Both HD-SDM combined with intravitreal injection of ranibizumab and single intravitreal injection of ranlbizumab are effective for DME,but the combining treatment can remarkably decrease the annual injection times and had a good compliance of patients,is a good choice for DME patients.

Objectives To investigate serum levels of B cell activating factor(BAFF)in Chinese patients with polymyositis(PM)or dermatomyositis(DM),and analyze the correlation of BAFF with autoantibodies and clinical phenotypes.Methods Serum BAFF levels of 28 PM patients and 30 DM patients(study group),and 25 matched healthy controls(control group)were measured by ELISA.Serum anti-Jo-1 antibody levels were also measured by ELISA in all the subjects.The results of the two groups were compared by unpaired t test and the relevance was analyzed by Pearson's correlation analysis.Results Serum levels of BAFF in PM/DM patients were significantly higher compared to healthy controls(P =0.000),but there was no statistically significant difference between the PM and DM patients(P ＞ 0.05).Patients with interstitial lung disease(ILD)had significantly higher serum BAFF level than the patients without ILD(P =0.000)or the controls(P =0.000).Serum BAFF levels of patients with positive antinuclear antibody(ANA)were significantly higher than those with negative ANA(P =0.003).For patients with anti-Jo-1 antibodies,the serum BAFF levels were correlated with the serum concentration of anti-Jo-1 antibodies(r =0.799,P =0.006).Conclusions Serum levels of BAFF are increased in Chinese PM/DM patients.These findings indicate that BAFF may be possibly enrolled in the pathogenesis of PM/DM.Detecting serum BAFF levels could have some implication for the diagnosis and treatment of PM/DM.

To modify uricase with PEG reagent in order to decrease uricase immunogenieity and increase its stability.Methods:The branched PEG of 40 kD was chosen to modify native uricase.The properties of the mod-ified uricase including the stabilities to protease,pH and temperature,in vivo half-life time,as well as the immu-nogenicity were evaluated.The pharmacokinetic profiles of the midofied uricase were studied in mice.Results:It is demonstrated that the conjugation of PEG to lysine residues of Candida utilis uricase resulted in higher tryp-sin resistance.reduced immune response.and prolonged in vivo half-life.PEG modified uricase retained 80% of the enzymatic activity of native uricase.In addition,it was found that half-life in serum of the intravenously injec-ted PEGylated uriease of up to 696 min was longer that that of native uficase of 45 min.Higher plasma drug con-centrations were also reached with dosing of the PEGylated uricase to mice.Furthermore,the binding affinity Was shown to be reduced for the PEG-uricase using ELISA assay.and it was one-eishth that of native uricase.Final-ly,it Was indicated that the PEG uficase induced a delayed immunoresponse in mice following repeated adminis-trations.Conclusion:These findings demonstrate that this chemically modified form of uricase may serve as a potentially effective drug to treat gout patients.

Objective To investigate the survival,differentiation and gene expression of the neural stem cells(NSCs) modified by the gene of NGF or GDNF in the brain of AD rat model after transplantation. Methods The NGF or GDNF genetically modified NSCs labled with BrdU were implanted into the lateral cerebral ventricle of the AD rat model.The rats were killed three weeks after transplantation.The brains were cut and the sections were processed for single or double immunochemistry staining with antibodies against BrdU,Nestin,GFAP,NF,NGF and GDNF. Results BrdU\|positive cells were found in the lateral cerebral ventricle.Some of them migrated into the parenchyma and located in the wound,fibria\|fonix,hippocampus,corpus callosum,septum,subventricle zone and beside the blood vessels.Cells of doubled labeling with anti\|BrdU and GFAP were more often seen in the cortex,whereas more cells with anti\|BrdU and NF in the hippocampus,and both of them in the ventricle.Doubled labeling cells against BrdU and NGF,and against BrdU and GDNF were found in the ventricle and parenchyma.Conclusion\ The NGF or GDNF genetically modified NSCs can not only survive well,but also differentiate into neuron and astrocyte,and express the exogenous genes of NGF and GDNF in the host brain