Child ; China ; Humans ; Rheumatic Diseases

Objective:To investigate the effects of nitric oxide(NO) and inducible nitric oxide synthase (iNOS) in the experimental abdominal aortic aneurysm (AAA) rat model.Methods:An intra-aortic elastase infusion model was used.Control rats received intra-aortic saline infusion.In the remaining groups,intra-aortic elastase infusion was used to induce aneurysm formation.These rats were treated with intraperitoneal injections of saline postoperatively(experimental group),aminoguanidine postoperatively(medicine group).Serum NO and aortic diameter were measured,Changes of histology,iNOS and MMP-9 were observed in the aortic wall.Results:Experimental group produced AAAs with significant production of iNOS,MMPs and serum NO compared with controls.In medicine group reduced aneurysm size and displayed suppression of MMPs expression,inflammatory infiltrates and serum NO production were detected.Conclusion:Expression of iNOS and MMP-9 are induced and serum NO levels are increased in experimental AAA,iNOS and NO production by iNOS play an important role with detrimental effects during experimental aneurysm development.

Objective This study aimed to understand the experience of family caregivers of elderly people,explore the relationship between responsibility and burden,provide reference and theoretical guidance to the health care provider.Methods Exploratory,descriptive,qualitative design was used and a semi-structure interview Was conducted in a convenience sample of 11 participants.The Colaizzi method of empirical phenomenology Was used for interviewing and anaIyzing data obtained from 11 caregivers.Results Four major themes were found and labeled:husbands and wives,be accompanied till they are old;learning to be filial from confucius;avoiding trouble other family member as less as possible;this is my destiny.Conclusions The findings of the study pointed out that service providers should fully consider the cultural factors and develop support services that better meet the traditional culture.

In order to improve the production of agro-antibiotic 2-16,the producing strain(Streptomyces ahygroscopicus var.huangshanensis) was treated by protoplast regeneration,ultraviolet radiation,NTG mutagenesis and low energy C~(+) ion implantation.At last,a high-yield strain No.515 was obtained.The production of ~()No.515 was increased by 223.10%.By using Plackett-Burman design and Response Surface Analysis provided by SAS software,the cultivation condition of No.515 was optimized.The amount of agro-antibiotic 2-16 was increased by 38.53% when the strain No.515 was cultivated in the optimum medium instead of the initial one.

Objective To evaluate engraftment status of patients after allogeneic hematopoietic stem cell transplantation(Allo-HSCT) and prompt relapse of disease based on DNA polymorphism analysis technique.Methods Sixty-six cases were detected by DNA polymorphism analysis technique and 25 cases were monitored and analyzed dynamically during this period.Results After Allo-HSCT,48 patients obtained type of donors,but 13 patients did not; 5 patients showed mixed chimerism.Two cases of type of donors converted into mixed chimerism and 4 cases of mixed chimerism converted into type of donors after some time. The others' engraftment status did not change.Conclusion DNA polymorphism analysis technique can detect engraftment status of patients exactly, rapidly, which provides effective evidences of constitution for more clinical therapy projects.

To establish single- and double-transfected transgenic cells stably expressing hMATE1, hMATE1 cDNA was cloned by RT-PCR from human cryopreserved kidney tissue, and subcloned into pcDNA3.1(+) plasmid by virtue of both HindIII and Kpn I restriction enzyme sites. Subsequently, the recombined pcDNA3.1(+)- hMATE1 plasmid was transfected into MDCK, MDCK-hOCT1 or MDCK-hOCT2 cells using Lipofectamine 2000 Reagent. After a 14-day-cultivation with hygromycin B at the concentration of 400 µg · mL(-1), all clones were screened with DAPI and MPP+ as substrates to identify the best candidate. The mRNA content of hMATE1, the cellular accumulation of metformin with or without cimetidine as inhibitor, or transportation of cimetidine was further valuated. The results showed that all of the three cell models over expressed hMATE1 mRNA. The cellular accumulation of metformin in MDCK-hMATE1 was 17.6 folds of the control cell, which was significantly inhibited by 100 µmol · L(-1) cimetidine. The transcellular transport parameter net efflux ratios of cimetidine across MDCK-hOCT1/hMATE1 and MDCK-hOCT2/hMATE1 monolayer were 17.5 and 3.65, respectively. In conclusion, cell models with good hMATE1 function have been established successfully, which can be applied to study the drug transport or drug-drug interaction involving hMATE1 alone or together with hOCT1/2 in vitro.
Animals ; Biological Transport ; Cimetidine ; pharmacology ; DNA, Complementary ; Dogs ; Drug Interactions ; Humans ; Madin Darby Canine Kidney Cells ; Metformin ; pharmacology ; Organic Cation Transport Proteins ; genetics ; metabolism ; Transfection

Objective To investigate and compare the molecular epidemiological characteristics of Streptococcus pyogenes isolates from Shanghai adult and pediatric patients in terms of antimicrobial susceptibility ,clone type ,emm type ,biofilm formation and virulence for better infection control and treatment .Methods Thirty‐nine nonduplicate clinical isolates of S . pyogenes from adult and pediatric patients were analyzed by determining the susceptibility to antimicrobial agents by Kirby‐Bauer method;clonal typing by multilocus sequence typing ( MLST ); genotyping by emm gene sequence analysis ,which encoding M protein;genomic characteristics of different emm type strains by pulsed field gel electrophoresis (PFGE );and biofilm formation by semi‐quantitative biofilm formation test . Twenty main virulence genes of S .pyogenes ,including 12 superantigen genes and 8 other key genes were detected by PCR and gel electrophoresis . Results A total of 39 nonduplicate S .pyogenes isolates were analyzed .The most common genotype was emm 12‐ST36 (64 .1% ) and emm 1‐ST28 (17 .9% ) .Isolates from adult and pediatric patients had the same dominant genotype , emm 12‐ST36 . The isolates from children showed significantly higher resistance rate to erythromycin and clindamycin than those from adult patients (P<0 .000 1) .Particular emm type and clone type were frequently identified in the same PFGE cluster .Statistical analysis showed that biofilm formation was significantly associated with emm type 1 (P=0 .005) and erythromycin/clindamycin resistance (P=0 .000 3) .The strains from children showed higher biofilm formation than those from adult patients (P<0 .000 1) .We found that virulence genes speA ,speJ and spd3 were significantly associated with emm type 1 (P<0 .000 1 ,P=0 .005 5 ,P<0 .000 1) ,while speI and sic were significantly associated with emm type 12 (both P<0 .000 1) .We also found that the prevalence of speC ,speH ,ssa , smeZ ,and sdaD genes was significantly different between emm type 12 and emm type 1 (P= 0 .023 8 , P< 0 .000 1 , P<0.0001,P= 0.0003,and P= 0.0068,respectively).TheprevalenceofvirulencegenesspeH,smeZandsdaDwas significantly different between the emm type 12 strains from children and those from adults (all P< 0 .000 1) .Conclusions There is a strong agreement between emm type ,clone type ,virulence genes and the clusters defined by PFGE profiling of S . pyogenes .S .pyogenes isolates from adult and pediatric patients are different in terms of antibiotic resistance and biofilm formation .Certain emm type is significantly associated with antibiotic resistance and virulence ,which is useful for infection control .Dominant virulence genes may be the potential target for developing new vaccine to reduce S .pyogenes infection in the future .

Ergosterol is the important component of the fungal membrane, and having stable structure. This makes it a suitable indicator for growth of fungi. In the paper, isolation and determination techniques of ergosterol as the indicator of the fungal biomass were reviewed. The methods of extracting ergosterol include traditional saponification and refluxing, rapid physical disruption, rapid ultrasonication, supercritical fluid extraction and so on. The ergosterol determination methods are high performance liquid chromatography, gas chromatography-mass spectrometry, liquid chromatography-mass spectrometry, and thin-layer chromatography, et al. The application of these techniques was also introduced. Finally, the paper prospected the feasibility of applying the ergosterol as the indicator of fungal biomass in composting.

0.02 kgf was considered as signifieant.All patients were studied within the first week of presentation with stroke, and underwent every day follow-up within the first month.Results Nine htmdred and fourteen patients were recruited into the study during 1-year period. WECSFP without lesion in brain stem was present in 4.4% of patients within the first week of stroke presentation.The patients with WECSFP had less JFS than the patients without WECSFP(P

Aim To study relative bioavailablity of cefaclor effervescent tablets in healthy volunteers. Methods According to the crossover design, A volunteers were each orally given a single does of the 0.75 g cefaclor effervescent tablets and cefaclor capsules with an interval of 5 days between the two formulations.The plasma concentrations of the drug were determined by RP-HPLC.Pharmacokinetic parameters were obtained by ATPK programe,and calculated on the basis of open single compartment model.Results After a single oral dose, the peak levels in plasma averaged Cmax(31.27?5.81)?g?ml-1 and(30.56?5.25) ?g?ml-1 at (0.58?0.12)h and(0.73?0.17)h and AUC0～4(35.48?4.65) ?g?h?ml-1 and (35.89?2.90) ?g?h?ml-1 for tablet and capsule,respectively. Conclusion The result shows that two formulations are bioequivalence.