Adult ; Anemia, Hemolytic, Autoimmune ; etiology ; therapy ; Antibodies, Monoclonal, Murine-Derived ; administration & dosage ; therapeutic use ; Cord Blood Stem Cell Transplantation ; adverse effects ; Female ; Humans ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; surgery ; Rituximab

Anemia, Hemolytic, Autoimmune ; therapy ; Antibodies, Monoclonal, Murine-Derived ; therapeutic use ; Female ; Humans ; Infant ; Rituximab

Air Pollutants, Occupational ; Dust ; prevention & control ; Occupational Exposure ; prevention & control ; Workplace

Objective To investigate the genetic damage of human bronchial epithelial cells (HBE) caused by cigarette smoke combined with nano-TiO2.Methods 16-HBE cells were exposed to cigarette smoke extract (CSE) and nano-TiO2(mg/L) at the doses of 0 mg/L CSE+0 mg/L nano-TiO2,50 mg/L CSE+0 mg/L nano-TiO2,75 mg/L CSE+0 mg/L nano-TiO2,100 mg/L CSE+0 mg/L nano-TiO2,0 mg/L CSE+10 mg/L nano-TiO2,50 mg/L CSE+10 mg/L nano-TiO2,75 mg/L CSE+10 mg/L nano-TiO2,100 mg/L CSE+10 mg/L nano-TiO2. After 24 h exposure,HBE viability was evaluated by the methyl thiazolyl tetrazolium (MTT) assay,single cell gel electrophoresis (SCGE,comet assay) was employed to assess DNA damage,chromosomal aberration was measured by micronucleus test. Results Except the group exposed to 10 mg/L nano-TiO2,HBE viability of the other treatment groups were lower than that of the control group and Comet % of the other treatment groups were higher than that of the control group (P

Objective: To construct an adenovirus-mediated anti-sense RNA targeting K-ras exon 1 of SW1990 cell line and observe its effect on cell proliferation and apoptosis after transferred into SW1990 cell line. Methods: K-ras exon 1 cDNA was cloned into shuttle vector pShuttle-CMV and the resultant plasmid was confirmed by enzyme digestion and PCR. Clones with inverted insertion were selected and co-transferred into E. coli BJ5183 with an adenoviral backbone plasmid pAdEasy-1 to produce recombinant plasmid by homologous recombination. Recombinants were then selected and transfected into 293 cell line to produce recombinant adenovirus. Recombinant adenovirus production was confirmed by PCR analysis and was amplified and purified; the virus titer was determined. Ad-LacZ was used to infect SW1990 cells and the infection efficiency was observed by X-gal staining. SW1990 cells was infected with the recombinant adenovirus and their proliferation and apoptosis were determined by MTT and annexin V/PI FCM assay. Results: A 282 bp target gene fragment was acquired by PCR; the titer of recombinant adenovirus was 7.6 × 108 pfu/ml before purification by CsCl2 gradient centrifugation and 5.0 × 1910 pfu/ml after CsCl2 gradient centrifugation. When the recombinant adenovirus was at 100 MOI, the infection efficiency of SW1990 cells nearly reached 100%. The transfection of recombinant adenovirus significantly inhibited SW1990 cell proliferation (P<0.05), with a maximal inhibitory rate of 40.5% 4-5 days after infection; it also significantly increased SW1990 cell apoptosis, with the apoptotic rate being (22.54 ± 5.38) % 72 hours after infection. Conclusion: We have successfully constructed an anti-sense RNA adenovirus vector targeting K-ras exon 1 of SW1990 cell line, paving a way for the anti-sense K-ras gene therapy of pancreatic carcinoma.

Objective To study the development and research status of infectious diseases influ- ence in China and the academic influence of Chinese Journal of Infectious Disease.Methods Utilizing the literature metrology means,mainly based on《Chinese Journal Full-text Network Database》and《Chinese Citation Network Database》,statistics and analyses on the Cited Papers of Chinese Journal of Infectious Disease in 2000 to 2004 were made.Results The citation rate of 787 papers from 30 issues was 65.9%,citation frequencies in total were 2946 and the highest citation frequency was 245,the av- erage citation frequency was 5.7,and the rate of cited fund articles with total cited papers was 37.6% the total citation frequencies raised in the recent years and the average of influence factors was 1.281. Conclusion The Chinese Journal of Infectious Disease represents the highest level core periodical of infectious diseases in China and is one of the most important information resources in this research demesne.

This study was aimed to investigate active ingredients from A mp e lop s is me galop hylla of protein expression by using two-dimensional gel electrophoresis (2-DE). Methods: isn this study, proteinsfrom the tender leaves of A mpelopsis megalophylla were precipitated by Tris-phenol extraction and ammonium acetate methanol precipitation. Then using 2-DE technology to isolate protein.Finally, 2-DE was analyzed by the scanner, and got protein characteristic maps. Result:According to the differences in ratio of gray value, the seven differential protein points were chosen to identify the mass spectrum. At present, two proteins were identified, namely the hypothetical protein and the unnamed protein product. Conclusion: the application of 2-DE technology for A mpelopsis megalophyllathe active ingredient of protein expression at the level of molecular research laid a good foundation.

Objective To study the expression and clinical significance of BFGF factor(BFGF) and basic fibroblast growth factor receptor(BFGFR) in papillary thyroid carcinoma (PTC).Methods 80 casesof PTC and 10 cases of nodular goiter underwent surgical treatment from Mar.2001 to May.2005 in Shengjing Hospital of China Medical University.Samples were collected and immunohistochemistry staining was performed to detect the expression of BFGF and BFGFR.Results The expression rate of BFGF and BFGFR was 72.5％ (58/80)vs 70.0％ (56/80) in PTC,and 0.0％ (0/10) vs 0.0％ (0/10) in nodular goiter.The difference had statistical significance(P ＜0.05).The expression level of BFGF and BFGFR in PTC had no relation with sex,age or tumor size(P ＞0.05),but has relation with lymph node metastasis and UICC stage(P ＜0.05).The expression of BFGF was positively correlated with the expression of BFGFR (r =0.330,P =0.003).Conclusions BFGF and BFGFR are highly expressed in PTC but have no expression in nodular goiter or normal thyroid tissues.The expression of BFGF and BFGFR in PTC is closely related to lymph node metastasis and UICC stage,indicating the 2 may be involved in tumorigenesis,invasion,and metastasis.

OBJECTIVE:To provide reference for the enactment of policies related to pediatric drug development in China.METHODS:The pediatric drug policies of the USA and its impact were studied comprehensively.RESULTS & CONCLUSIONS:The enforcement and stimulation policies were adopted in US for pediatric drug development,which achieved certain efficacy.China might as well draw the successful experiences from US to establish policies tailored to the status of pediatric drug development in order to promote pediatric drug development and improve the health level of Chinese children.

Corticosteroid-induced glaucoma (CIG) is a form of open angle glaucoma associated with both topical and systemic administration of corticosteroids. Here we described the clinical findings in a patient with severe glaucoma and posterior subcapsular cataract (PSC) after topical administration of corticosteroid eye drops. We concluded corticosteroid eye drop was an effective medicine for inflammation of the eyes; however,prolonged use could cause severe vision loss as a result of intractable corticosteroid-induced glaucoma and cataract.