Objective To investigate the immune effect and the security after inoculating rabies vaccine in children. Methods To investigate and to detect the antibody level by the way of ELISA among the 337 children wounded by animals and vaccined the rabies vaccine. Results The positive rate of the antibody is 99.7%, the ad-verse effect is moderate. Conclusion Domestic adjuvant-free aqueous rabies vaccine, domestic freeze dried rabies vaccine and peregrinus freeze dried rabies vaccine all have satisfactory immunogenicity and little adverse effect.

Objective To test the expression level of CD69+CD4+CD25-T cells in peripheral blood from patients with autoimmune pancreatitis,and further analyze its clinical significance.Methods Peripheral blood samples from 32 patients with AIP diagnosed in hematological department,Changhai Hospital and 32 health individuals examined at the same time were collected from September 2014 to December 2016,they were classified as experimental and control groups,separately.Peripheral blood mononuclear cells (PBMCs) was acquired by density gradient centrifugation,CD69+ CD4 + CD25-T cells in PBMCs were tested by flow cytometry,and the expression level of cytokines in plasm was by ELISA.The comparison of varies between the two groups was measured by two independent samples' t test.The relationship between the two measurement data was measured by pearson correlation coefficient.Results The expression levels of CD69 + CD4 + CD25-T in experimental and control groups were 10.36％±3.68％ vs 3.99％±1.45％ (t=9.110,P＜0.0001).The expression level of TGF-β was 399.86±121.88 vs 143.87±56.22 pg/ml (t=10.79,P＜0.000 1),both with statistical significance.The levels of CD69+CD4+CD25-T in experimental was positively correlated with TGF-β (r=0.653,P＜0.001) and negatively with IL-4,IFN-γ,IL-2 (r=-0.442,-0.567,-0.351,P＜0.05) and there was statistical significance.Conclusion CD69+CD4 +CD25-T cells might involve the immunopathology of AIP and could be the potential biomarker for clinical diagnosis and therapy.

Objective To observe the effect of 5-aza-2'-deoxycytidine(5-aza-CdR)on the normal epithelial specific-1 gene(NES1)and the growth of human gastric cancer xenografts in nude mice,and to explore the possible anti-tumor mechanisms and search for new treatment for gastric cancer.Methods Human gastric caner xenograft model in nude mice was established and treated with 5-aza-CdR.The growth of xenografts in nude mice was observed,and the status of methylation and protein expression of NES1 gene were detected by MSP and immunohistochemistry respectirely.Results After treatment with 5-aza-CdR,the growth of the xenografts in nude mice was greatly inhibited(P

Background Corneal neovascularization ( CNV ) is a complication of many ocular surface diseases.It often worsen the pathological course.Effective therapy for CNV is still researching. Objective This study was to investigate the inhibitory effect of irradiation on CNV. Methods CNV models were established in 70 right eyes of 70 clean Wistar rats by corneal alkali burning.The models were randomized into β ray 10 Gy once irradiation group( 2 eyes),β ray 7 Gy multiple irradiation group( 17 eyes),β ray 10 Gy multiple irradiation group( 17 eyes),1％ cyclosporin A ( CsA ) eye drops group ( 17 eyes) and model group ( 17 eyes),and 6 matched normal rats were used as normal controls.All treatments started from the first day of the corneal alkali burning.CNV length and area were measured under the slit lamp every day.Corneal samples and homogenate were prepared 3,5,7 days after corneal alkali burning.The expressions of bcl-2,bax,vascular endothelial growth factor(VEGF) in rat corneas were detected by immunochemistry,VEGF proteins and VEGF mRNA were detected by Western blot and reverse transcription polymerase chain reaction (RT-PCR),respectively. Results Corneal ulceration was found in the βray 10 Gy once irradiation group and β ray 10 Gy multiple irradiation group.CNV length and area were much less in the β ray 7 Gy multiple irradiation group and 1％ CsA eye drops group compared with the model group on the seventh day after experiment( length:q=14.40,24.20,P＜0.01 ;area:q=17.80,14.00,P＜0.01 ).Immunochemistry revealed that compared with the model group,expressions of bcl-2 and VEGF proteins were weaker,but the expression of bax protein was stronger in the β ray 7 Gy multiple irradiation group and 1％ CsA eye drops group.RT-PCR showed that the expression of VEGF mRNA in cornea was lower in the β ray 10 Gy multiple irradiation group,β ray 7 Gy multiple irradiation group and 1％ CsA eye drops group in comparison with that in model group,and the results from Western blot showed the same pattern as RT-PCR. Conclusions Low dose irradiation of 90Sr-90Y ophthalmic applicator inhibits CNV formation after alkali burn.The study provide a new understanding of the irradiation for the treatment of CNV.

Background/Aims: The risk factors of colorectal stricture associated with ulcerative colitis (UC) carcinogenesis in the long-term disease duration remain unclear. Methods: This study included all UC patients registered from a prospectively maintained database between June 1986 to July 2018. The demographic data, clinical features, and outcomes in patients with dysplasia and stricture were assessed using univariable analysis and multivariate logistic regression models. Results: A total of 246 eligible patients were in-cluded in the analysis. The median follow-up time was 13.0 years (interquartile range [IQR], 9.0 to 16.0). There were 35 cases (14.2%) of colorectal stricture. Patients with stricture had worse clinical outcomes. Stricture formation (odds ratio [OR], 9.350; 95% confidence interval [CI], 2.842 to 30.762), inflammatory polyps (OR, 5.464; 95% CI, 1.692 to 17.638), disease duration of more than 10 years (OR, 3.223; 95% CI, 1.040 to 9.985), and age >40 years at diagnosis (OR, 8.499; 95% CI, 1.903 to 37.956) were significantly associated with high-grade dysplasia or colorectal cancer. In addition, disease duration of more than 5 years (OR, 3.211; 95% CI, 1.168 to 8.881), moderated anemia (OR, 3.373; 95% CI, 1.472 to 7.731), and primary sclerosing cholangitis (OR, 5,842; 95% CI, 1.395 to 24.468) were contributing factors for the development of colorectal stricture. Conclusions Colorectal stricture had the highest risk for malignant transformation.Earlier initiation of colonoscopic surveillance in UC patients with risk factors for stricture should be considered to prevent stricture formation and further malignant transformation.

OBJECTIVETo compare mini-probe endoscopic ultrasonography (MCUS) with computed tomography (CT) in preoperative T and N staging of esophageal cancer, and to find out the MCUS parameters to judge lymph node metastasis for esophageal cancer.

METHODSThirty-five patients received both MCUS and CT preoperatively, on both of which the T and N stages were determined. The accuracy, sensitivity, specificity, positive predicting value and negative predicting value were compared with the postoperative pathological results.

RESULTSThe accuracy of MCUS was 85.7% in T staging and 85.7% and 80.0% in N staging by the two different methods, which were 45.7% and 74.3%, respectively, by CT.

CONCLUSIONMCUS is better than CT in preoperative staging for esophageal cancer. The ratio of short to long axis (S/L) combined with short axis is a useful way to determine lymph node metastasis.

Adult ; Aged ; Double-Blind Method ; Endosonography ; instrumentation ; methods ; Esophageal Neoplasms ; diagnostic imaging ; pathology ; surgery ; Esophagus ; diagnostic imaging ; Female ; Humans ; Lymph Nodes ; diagnostic imaging ; pathology ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Staging ; methods ; Preoperative Care ; Tomography, X-Ray Computed

OBJECTIVETo investigate the changes of serum reproductive hormones with male aging and to compare the differences in the hormone levels among different age groups or between township and rural males of the same age group.

METHODSUsing cluster and stratified sampling, we recruited 434 healthy old and middle-aged (40-69 years) males, 198 from the township and 236 from the rural communities. We determined the concentrations of serum total testosterone (tT), luteinizing hormone (LH) and sex hormone binding globulin (SHBG), free testosterone (fT), bio-available testosterone (Bio-T), and obtained the testosterone secretion index (TSI) and free testosterone index (fTI). Meanwhile, we included fifty-nine 20-39 years old males from the same communities in a control group.

RESULTSWith the increase of age, the serum tT levels did not change significantly, while the levels of serum LH and SHBG increased, and those of fT, Bio-T, TSI and fTI decreased gradually. Statistically significant differences were found among the four different age groups in all the parameters of reproductive hormones (P < 0.01), except in the serum tT level (P > 0.05). The serum tT level was not significantly correlated with aging and LH (P > 0.05). Serum LH and SHBG had a marked positive correlation with aging, and SHBG with LH (P < 0.01), while fT, Bio-T, TSI and fTI were negatively correlated with aging and the LH level (P < 0.01). Serum LH, TSI and fTI showed statistical differences (P < 0.05), while fT and Bio-T exhibited extremely significant differences (P < 0.01) between the township and rural males in the 40 -49 yr group, and in the same age group, the increase rates of serum LH and SHBG and reduction rates of fT, Bio-T, TSI and fTI were higher in the rural men than in the township residents. However, the results were just the opposite in the 50 - 59 and 60 - 69 yr groups.

CONCLUSIONThe levels of serum LH, SHBG, fT, Bio-T, TSI and fTI changed with aging in a gradientmanner in the old and middle-aged males, but no significant changes were observed in the level of serum tT. There were statistical differences in many parameters of serum reproductive hormones among different age groups or between township and rural males.

Adult ; Age Factors ; Aged ; Aging ; metabolism ; China ; Humans ; Luteinizing Hormone ; blood ; Male ; Middle Aged ; Rural Population ; Serum Albumin ; metabolism ; Sex Hormone-Binding Globulin ; metabolism ; Testosterone ; blood ; Urban Population ; Young Adult

OBJECTIVESTo study the inhibitory effects of mouse telomerase RNA (mTR) antisense oligodeoxynucleotide(ASODN) on telomerase activity in rat spermatogonia.

METHODS9-mer phosphorothioate mTR-ASODN was encapsulated by Lipofect AMINE 2000 (LF 2000) and transfected to type A spermatogonia in Snrague Dawley (SD) rat. Telomerase activity was detected by aid of TRAP-SYBR-Green staining and Bioluminescence technique in type A spermatogonia treated or untreated with ASODN.

RESULTSmTR-ASODN conjugated with LF 2000 could significantly inhibit telomerase activity of spermatogonia(P < 0.01). mTR mRNA level also decreased while the spermatogonia were treated with ASODN for 24 h. No change of telomerase activity and apoptosis were observed when SODN, RODN or single LF 2000 was used.

CONCLUSIONSAntisense oligodeoxynucleotide of mTR conjugated with LF 2000 could significantly inhibit telomerase activity of spermatogonia. mTR-ASODN might inhibit telomerase activity of spermatogonia at transcription level.

Animals ; Male ; Oligodeoxyribonucleotides, Antisense ; pharmacology ; RNA ; antagonists & inhibitors ; genetics ; metabolism ; RNA, Messenger ; analysis ; Rats ; Rats, Sprague-Dawley ; Spermatogonia ; cytology ; enzymology ; ultrastructure ; Telomerase ; antagonists & inhibitors ; genetics ; metabolism

OBJECTIVETo investigate the therapeutic effect of recombinant human parathyroid hormone(1-34) [rhPTH(1-34)] on osteoporosis of ovariectomized rats.

METHODSThe model of osteoporosis was formed after 3 months of ovariectomy with 6-month age of 80 rats. Another 20 rats was control of sham operation. rhPTH(1-34) was subcutaneously injected once daily with 5, 10, 20, 40 micrograms/kg for 3 months. There were 10 rats in each group. The control of therapy included Salmon Calcitonin to 10 rats and Alendronate sodium to 10 rats. The bone weight of dry and ash, bone mineral density, bone biomechanical property, trabecular area, bone mineral deposition and serum alkaline phosphatase, Ca, P and urinary Pyridinoline/creatin (Pyd/Cr) were measured after the end of therapy.

RESULTSWhen administered to animals as a single subcutaneous injection once daily, rhPTH(1-34) increased obviously bone mass, bone biomechanical property and trabecular area, as well as bone deposition compared with the animals of control group. The bone architecture was ultimately improved by rhPTH(1-34) therapy.

CONCLUSIONSRats of ovariectomized-induced osteoporosis possess obvious effect of treatment with low dose of rhPTH(1-34) administered once daily.

Animals ; Female ; Osteoporosis ; drug therapy ; etiology ; Ovariectomy ; Rats ; Recombinant Proteins ; therapeutic use ; Teriparatide ; therapeutic use

OBJECTIVETo study the correlation between hepatocellular carcinoma (HCC) and serum Golph2 protein.

METHODSGolph2 gene was cloned by RT-PCR using RNA from WBF44 cell line as template, the point mutations of the cloned sequence were corrected by PCR, then the gene (1206 bp) was cloned into pET-21 plasmid, and the resulted plasmid was transformed into E.coli DH5a. The expression of 6xHis and Golph2 fusion protein was induced by isopropylthio-beta-D-galactoside (IPTG). The expression of fusion protein was detected by SDS-PAGE and Western blot, and was purified by Ni NTA chelating agarose. The rabbit antibody against Golph2 protein was obtained by immunizing 2 rabbits with the purified Golph2 protein. The specificity and titer of the antibody was determined by Western-blot and ELISA respectively. Sandwich ELISA was used to detect the level of serum Golph2 protein.

RESULTSThere were two replacement mutation and 1 deletion mutation in the cloned sequence contrasted to NM177937 in Genbank, including 644(T-->C, L-->P) , 970 (G-->A, V-->I) and 802 G deletion. The sequence was completely reversed by PCR. The sequence of Golph2 gene cloned into expression vector was confirmed by DNA sequencing. SDS-PAGE and Western blot analysis showed that Golph2 protein was expressed in E.coli DH5a. The antiserum could bind to the 52 kD recombinant protein and serum 73 kD protein specifically. The mean A450 value of ELISA for serum Golph2 protein were significantly higher in HCC and other liver diseases than that in control groups. The sensitivity and specificity for HCC were 44.5% and 82.0%, respectively, at the cut off value is more than or equal to 0.40.

CONCLUSIONThe polyclonal antibody against Golph2 protein is specific. The level of serum Golph2 is significantly higher in patients with HCC and other liver diseases than that in healthy controls.

Animals ; Antibodies, Monoclonal ; analysis ; immunology ; Base Sequence ; Biomarkers, Tumor ; blood ; Carcinoma, Hepatocellular ; diagnosis ; metabolism ; pathology ; Cell Line, Tumor ; Cloning, Molecular ; Enzyme-Linked Immunosorbent Assay ; methods ; Escherichia coli ; genetics ; Genetic Vectors ; genetics ; Humans ; Liver Neoplasms ; diagnosis ; metabolism ; pathology ; Male ; Membrane Proteins ; biosynthesis ; blood ; genetics ; immunology ; metabolism ; Molecular Sequence Data ; Polymerase Chain Reaction ; Rabbits