Stenotrophomonas maltophilia.At the same time 136 strains of fungi were isolated.Candida albicans was the most predominant accounted for 60.3%.50.7% Strains of K.pneumoniae and 75.7% strains of E.coli produced ESBLs.The resistance rates of all K.pneumoniae and E.coli to ?lactams were above 50%.All isolates of Enterobacteriaceae were sensitive to imipenem or meropenem.The activity of antibacterial agents against P.aeruginosa was coming down. CONCLUSIONS K.pneumoniae and E.coli are the major pathogens in senile patients with lower respiratory tract infection.Increasing of nonfermenters and fungi as an infection should bring great concern.

Objective To investigates the gene expression of telomerase by real-time quantitative telomeric-repeat amplification protocol assay (RTQ-TRAP) in the peripheral blood mononuclear cells (PBMC) of colorectal carcinoma patients and the relationship between the telomerase gene expression in PBMC and clinicopathological features. Methods Peripheral blood samptes were collected from 71 colorectal carcinoma patients, 20 benign colorectal disease patients and 25 normal controls. The telomerase gene expression in PBMC was measured by RTQ-TRAP, and serum CEA in colorectal carcinoma patients was measured by chemiluminescence immunoassay. Results The gene expression of telomerase in PBMC was positive in 50 out of 71 cancer patients (70. 4% ) , 1 out of benign patients (5. 0% ), respectively. The difference of the telomerase gene expression of PBMC in benign colorectal diseases and cancer patients was significant (χ2 = 24. 521, P < 0. 001 ). There was no significant association between the expression of telomerase and patient's gender, age, Dukes stage, and tumor site. The positive rate of CEA in colorectal carcinoma patients was not significantly higher than positive rate of telomerase gene expression(χ2 = 2. 286,P = 0. 125). Conclusions The RTQ-TRAP method is highly accurate and sensitive in measuring telomerase gene expression. The detection of telomerase gene expression in PBMC of colorectal carcinoma patients is a simple and useful molecular marker for the diagnosis of colorectal carcinoma.

Objective:To demonstrate the feasibility of the osteosarcoma devitalization method by vacuum dehydration at room tem-perature. Methods:For the in vivo study, the VX2 tumor mass was treated by vacuum dehydration, rehydrated in ice water, and im-planted in the rabbit to determine the safety time to deactivate the tumor. For the in vitro study, the osteosarcoma mass was devital-ized by vacuum dehydration, and the dehydration rate and ATPase activity were determined. Histopathological changes in the tumor were also observed. The change in the biomechanical strength of rabbit bone and tendon after vacuum devitalization treatment was detected. Results:At room temperature, the safety time to deactivate the VX2 tumor was 60 min, and the dehydration rate was 93.8%at this time point. After vacuum dehydration, the tumor mass evidently shrunk, presenting a porous structure. The osteosarcoma cell became small, and cell structure damage was observed under light microscope. Disrupted cell membrane and organelles were seen un-der transmission electron microscope as well as broken down chromosomes. The activity of ATPase was evidently lower than in the control group. The strength of bone and tendon did not decrease significantly after vacuum dehydration. Conclusion:Treatment by vacuum dehydration at room temperature for 60 min does not result in differences of the bone and tendon strength. However, it can inactivate both soft tissue and bone tumor mass completely.

OBJECTIVE To study the isolation rate,distribution characteristics and antimicrobial resistance of Acinetobacter baumannii infection.METHODS Surveillance data of A.baumannii infection,distribution and resistance rates to 12 kinds of antibiotics in our hospital for 3 years were analyzed.RESULTS During the 3-year infection surveillance,194 strains of A.baumannii were isolated in our hospital.The isolation rate was 7.8% in 2006,though 2.4% in 2004.Eighty strains(41.2%) of A.baumannii were from intensive care unit;95 strains were from over 60-year-old sufferers;compared with 2004 and 2005,the resistance rates of A.baumannii in 2006 to 12 kinds of antibiotics were increasing at different degree.The antibacterial susceptibility to imipenem/meropenem was the highest.CONCLUSIONS The isolation rate of A.baumannii and antimicrobial resistance rate are increasing year by year.The A.baumannii strains shows obvious multiple antibacterial resistance.We must keep monitoring of A.baumannii infection and drug-resistant changes in order to prevent nosocomial infections.

OBJECTIVE To study the clinical species distribution and drug resistance of Enterococcus.METHODS We had collected 201 isolates of Enterococcus by cultured in normal methods in our hospital from July 2005 to June 2008,and analyzed the characteristics of species distribution,drugsensitive test,drug resistance of high concentration aminoglycoside antibiotics and measured the ?-lactamase.RESULTS There are 106 E.faecalis strains(52.7%),76 E.faecium strains(37.8%) and 19 the other Enterococcus strains(9.5%).There were 102 Enerococcus strains separated from urine and 46 separated from sputamentum.The drug resistance rate of Enterococcus faecalis to erythromycin,tetracycline,rifampin and ciprofloxacin were more than 75.0% and the resistance rate of E.faecium to penicillin,ampicillin,erythromycin,rifampin,ciprofloxacin and nitrofurantoin were more than 93.0%;the total resistance rate of Enterococcus to vancomycin and teicoplanin were 14.4% and 10.4%,respectively.The number of the isolates resistant to high concentration aminoglycoside antibiotics was 151(75.1%);Enterococcus with positive ?-lactamase were 74(36.8%).CONCLUSIONS The infection in urinary system and respiratory system were mainly caused by E.faecalis and E.faeciumwith multidrug resistance.

AIM: To affirm marker peaks for the fingerprint chromatography of Shengmai Injection. METHODS: LC-MS/MS method was used, with a Waters symmetryshield TM RP_ 18 column(4.6 mm?250 mm; 5.0 ?m), acetonitrile-water as a mobile phase, The detection wavelength was at 203 nm. Ion trap mass spectrum. RESULTS: Affirming marker peaks for fingerprint chromatography of Shengmai Injection and 10 marker peaks were affirmed. CONCLUSION: The method can affirm marker peaks for the fingerprint chromatography of Shengmai Injection. It is simple, accurate, and has practicality.

OBJECTIVETo evaluate in vivo pharmacokinetics of Ophiopogonis Radix polysaccharide MDG-1 oily suspension injection prepared with different prescriptions in rats, and explore the feasibility of the long-acting drug delivery of MDG-1 Injection by using the oily suspension drug release system.

METHODMDG-1 microparticles were prepared by the anti-solvent precipitation method. Their size and size distribution were characterized. Castor oil with a high viscosity or aluminum stearate were added into soybean oil with a low viscosity, in order to prepare oily media with different viscosities, detect their rheological properties and screen out superior prescriptions for in vivo evaluation.

RESULTThe average size of microparticles was 21.81 microm, and the span between them was 2.63. The in vivo evaluation was conducted for prescriptions of mixed oil (soybean oil/castor oil, 2: 3) and soybean oils gelled by 2% and 4% aluminium stearate. Among them, the prescription of soybean gelled by 4% aluminium stearate could significantly reduce C(max) and prolong the apparent t1/2, with the MDG-1 release time of several days.

CONCLUSIONIt is feasible to achieve the long-acting MDG-1 drug delivery by using oily media with a high viscosity.

Animals ; Chemistry, Pharmaceutical ; methods ; Drug Delivery Systems ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; pharmacokinetics ; Male ; Ophiopogon ; chemistry ; Plant Oils ; chemistry ; Polysaccharides ; administration & dosage ; chemistry ; pharmacokinetics ; Rats ; Rats, Sprague-Dawley ; Viscosity

A full-length cDNA of phytoene desaturase (PDS) gene from Andrographis paniculata was obtained through RACE-PCR. The cDNA sequence consists of 2 224 bp with an intact ORF of 1 752 bp (GeneBank: KP982892), encoding a ploypeptide of 584 amino acids. Homology analysis showed that the deduced protein has extensive sequence similarities to PDS from other plants, and contains a conserved NAD ( H) -binding domain of plant dehydrase cofactor binding-domain in N-terminal. Phylogenetic analysis demonstrated that ApPDS was more related to PDS of Sesamum indicum and Pogostemon cablin. The semi-quantitative RT-PCR analysis revealed that ApPDS expressed in whole aboveground tissues with the highest expression in leaves. Virus induced gene silencing (VIGS) was performed to characterize the functional of ApPDS in planta. Significant photobleaching was not observed in infiltrated leaves, while the PDS gene has been down-regulated significantly at the yellowish area. To the best of our knowledge, this represents the first report of PDS gene cloning and functional characterization from A. paniculata, which lays the foundation for further investigation of new genes, especially that correlative to andrographolide biosynthetic pathway.
Amino Acid Sequence ; Andrographis ; chemistry ; classification ; enzymology ; genetics ; Cloning, Molecular ; Molecular Sequence Data ; Oxidoreductases ; chemistry ; genetics ; metabolism ; Phylogeny ; Plant Proteins ; chemistry ; genetics ; metabolism ; Sequence Alignment

Objective To investigate the incidence,diagnosis,treatment and prognosis of abnormal lymphatic vessels in intestinal lymphangiectasia (IL) patients complicated by portal vein hypertension.Methods General information,clinical manifestations,laboratory tests,endoscopy and pathological examination,the results of direct and nuclide lymphangiography,treatment and prognosis of seven IL patients complicated by portal vein hypertension were retrospective analyzed.Results Among seven IL patients complicated by portal vein hypertension,there were five cases with abnormal lymphatic vessels and two cases were merely secondary to portal vein hypertension.The main symptoms were edema,abdominal distension and diarrhea.The results of laboratory tests mainly were lymphocytopenia (0.3× 109 to 1.7 × 109/L),hypoalbuminemia (16.0 to 27.8g/L) and hypoglobulinemia (13.2 to 17.7 g/L).Under endoscope,mucosal edema,chronic inflammatory reaction,intestinal villi spot and patched white nodular changes and polyp-like changes appeared.For treatment,the low-fat with medium-chain triglyceride diet and symptomatic support was the basic treatment.The condition could be relieved by surgical remission of abnormal lymphatic vessels or partial small-bowel resection.If the etiological factors could not be removed,the therapeutic effect was poor in the patients merely secondary to portal vein hypertension.Conclusion The suspicious IL patients complicated by portal vein hypertension need further examination to explore whether abnormal lymphatic vessels existed,and to provide evidence for surgical intervention.