Respiratory Protective Devices

Medicine, Chinese Traditional ; Terminology as Topic ; Translations

Objective To investigate the effect and mechanism of transplantation of marrow multi- function stem ceils in treating femoral head necrosis.Methods Sixty japanese rabbits were divided into A,B and C groups randomly.After creation of the models of hormone induced necrosis of femoral head;A group was designated as the treatment,B as the control and C as the normal groups.The bone marrow of A group was extracted and isolated and then injected into the left femoral head and the right femoral head was decompressed by drilling only.The rabbits were killed at 8 weeks after the treatment and changes in various parameters were observed,including imaging data of molybdenum target films,CT and MRI;routine pathology with HE staining and ultrastructural alteration by election microscopy.Results Eight weeks after the treatment of transplantation of marrow multifunction stem cells,the X-ray showed only a little change but the typical appearances were revealed by CT and MRI.Pathohistologic manifestation demonstrated decrease of empty bone lacuna,increase of osteoblast and new bone formation.Election microscopy displayed abundant organelles in osteoblasts with few empty bone lacuna,in addition the tansplantation of marrow multifunction stem cells could obtain better reconstraction for the involved femoral head.Conclusions The treatment of transplantation of marrow muhifunction stem cells in femoral head necrosis could accelerate the process of repairing,worthy to be acknowledged as a good and valuable management in rabbits.(J Intervent Radial,2007,16:122-126)

OBJECTIVETo assess the clinical effectiveness of volar and radial column approach by plate fixation for the treat- ment of unstable fracture of distal radius.

METHODSAccording to Cochrane Systematic Review, Medline, Embase, Cochrane Li- brary, CNKI and CBM, randomised controlled trials (RCTs) of volar and radial column approach by plate fixation for the treat- ment of unstable fracture of distal radius were searched for from 1966 to 2014. Data analysis was performed with the Cochrane Collaboration's RevMan 5.0 software.

RESULTSTotally 391 patients of 6 RCTs and 2 retrospective cohort studys were included and divided into volar plate group (187 cases) and radial column plate group (204 cases). Meta-analysis result showed: compared with radial column plate group, volar plate group had significant difference in recovery of wrist function [SMD = 0.74, 95% CI (0.47, 1.01), P < 0.00001], Gartland-Werley scores [SMD = -1.39, 95% CI (-2.24, -0.53), P = 0.001], postoperative neural in- jury [OR = 3.67, 95% CI (1.37, 9.84), P = 0.01 1 and postoperative wrist pain [OR = 0.32, 95% CI (0.13, 0.74), P = 0.008]. But no significant difference was identified in DASH scores [SMD = -0.36, 95% CI (-0.97, 0.26), P = 0.25], radiographic result assess- ment [SMD = -0.18, 95% CI (-0.53, 0.16), P = 0.3], postoperative grip strength [SMD = 0.71, 95% CI (-0.12, 1.54),P = 0.09], postoperative tendinous damage [OR = 0.31, 95% CI (0.10, 0.98), P = 0.05] and carpal tunnel syndrome [OR = 0.96, 95% CI (0.63, 1.48), P = 0.87].

CONCLUSIONCompared with radial column plate internal fixation, volar approach plate fixation for treat- ment of distal radius intra-articular fracture has advantage of recovery of joint functionand. However, the volar approach plate fix- ation was associated with a higher risk of long-term complications than the radial column approach plate fixation.

Aged ; Antineoplastic Agents ; therapeutic use ; B7-2 Antigen ; analysis ; Diagnosis, Differential ; Follow-Up Studies ; Histiocytic Disorders, Malignant ; drug therapy ; metabolism ; pathology ; Humans ; Male ; Sarcoma ; chemistry ; drug therapy ; pathology ; Skin Neoplasms ; chemistry ; drug therapy ; pathology

Adult ; Antigens, CD20 ; metabolism ; Antiviral Agents ; therapeutic use ; Bone Marrow Transplantation ; adverse effects ; CD3 Complex ; metabolism ; Epstein-Barr Virus Infections ; drug therapy ; etiology ; Follow-Up Studies ; Foscarnet ; therapeutic use ; Humans ; Ki-67 Antigen ; metabolism ; Lymphoproliferative Disorders ; drug therapy ; etiology ; immunology ; virology ; Male

Quorum sensing systems of pathogens are central regulators for the expression of virulence factors. Increasing evidence implies that targeting the quorum sensing system of many pathogenic bacteria is a promising therapeutic approach to control infections. In this work,we isolated 47 strains of actinomycetes from the mud sample of Jiaozhou Bay. Quorum sensing inhibitory activity was monitored by Chromobacterium violaceum CV026. As a result,the culture broth extract of actinomycetes WA-7 was found to have significant quorum sensing inhibitory activity. This strain was assigned to the genus Streptomyces based on its 16S rDNA sequence. Further investigation revealed that the extract could inhibit the quorum sensing-controlled violacein and proteases production of C. violaceum in a concentration-dependent manner.

Objective To investigate the iodine content of food in six provinces of China,to add the results of this survey to the food iodine content database,and to provide a scientific basis for iodine supplementation in different parts of China.Methods A total of 8 categories and 39 species common food produced locally in the six provinces of Fujian,Chongqing,Shandong,Anhui,Gansu and Jilin were collected.Samples of cereals,beans and other dry samples were crushed into powder; samples of fresh fruits and vegetables were washed and dried to constant weight,and crushed into powder; poultry,meat and fish samples were washed and then their edible parts were crushed into meat paste,bake dried to constant weight,and crushed into powder.Iodine content in the above-mentioned food was determined by catalytic spectrophotometry,and the wavelength was 405 nm.Data processing and statistical analysis were carried out by using SPSS 13.0 statistical software.The results of total iodine content of the various types of food were expressed as median(P50) and interquartile range(P25 and P75).Results The iodine content of the cereal in Fujian,Chongqing,Shandong,Anhui,Gansu and Jilin were 11.9,12.0,48.0,95.1,13.0and 3.1 μg/kg,respectively; of the potato were 53.9,26.3,74.9,43.7,76.8 and 38.5 μg/kg,respectively; of the meat and the eggs were 56.0,30.4,78.6,124.6,47.7 and 34.8 μg/kg,respectively; of the aquatic products were 319.3,144.7,186.6,241.3,155.4 and 213.3 μg/kg,respectively; of the vegetables were 166.6,145.1,131.7,218.0,205.4 and 98.1 μg/kg,respectively; of the fruits were 105.5,17.8,80.9,1.7,76.7 and 10.3 μg/kg,respectively; of the kelp and laver were 36.0 × 103,1292.0 × 103,2810.0 × 103,48.0 × 103,75.0 × 103 and 120.0 × 103 μg/kg,respectively; of the Chinese pickled vegetables were 640.4,4163.5,3073.7,2635.3,1540.9 and 492.0 μg/kg,respectively.ConclusionsThe iodine content of different types of food,and same kind of food from different provinces are different.The results are a complement to the 2004 Chinese food composition database.

Objective To analyze nucleic acid sequence homology of the 6 kb(pYC) plasmid of Yersina. pestis (Y. pestis) isolated from Yurman by searching GenBank. Method The search of sequence similarity was accomplished with BLAST. Results The pYC plasmid sequence had high homology with some genes in nueleotide sequence, such as: 97.1% homology with Shigella sonnei pKYM, 92.1% homology with Haemophilus influenzae(H. influenzae) gene, Salmonella typhi (S. typhi) gene LT2 and plMVSI with 88.2% and 87.2% of homology respectively, Escherichia coli(E, coli) O157:H7 and K-12, ECOR31 with 81.4%, 81.4% and 84.7% of homology respectively. This plasmid ORFs could code for some proteins which were similar with others in GenBank, such as: ORFi and H. paragallinarum replication protein B(47.2%), ORF4 and E. coli hypothetical protein(52.7%), ORF5 and Y. pseudotuberculosis Tile (48.3%), ORF6 and E. coil Pilx5/VirB5-1ike protein (42.3%), Y. enterocolitica TriD protein(38.5%), ORFIO and S. typhimurium LT2, E. coli O157:H7 hypothetical protein(83.1% and 81.9%, respectively), ORF11 and E. coli, damage-inducible protein J(81.4%). Conclusions The pYC plasmid sequence has high homology with a few bacterial genes of Enterobacteriaceac. This plasmid may code for some proteins that are similar with hypothetical protein, damnge-indncible protein, TriD and TilE protein, Pilx5/VirB5-hke protein of Escherichia or Yersinia.

ObjectiveTo compare the efficacy and side effects of ilioinguinal/iliohypogastric nerve blockades and rectal paracetamol after pediatric inguinal hernia repair.MethodsNinety children undergoing half inguinal hernia repair were randomly divided into 3 groups:nerve block group(n=30),paracetamol group(n=30) and control group(n=30).After basal anesthesia,ilioinguinal/iliohypogastric nerve blockades was administed in nerve block group,paracetamol group received rectal paracetamol,control group had not any medication.Every child was oberserved 1,3,6,8 h postoperatively for pain score,overall satisfaction were evaluated by parents,furthermore,evaluation of distress for children such as nausea,vomiting and delayed femoral nerve palsy was made.ResultsPain scores were significantly lower in nerve block group and paracetamol group during the postoperative follow-up 1,3 and 6 h.Overall satisfaction in nerve block group and paracetamol group were significantly higher than control group.The incidence of delayed femoral nerve palsy in nerve block group was higher than paracetamol group(F=4.22P