An antibiotic-producing bacterium, which was numbered as 20 #-5, was separated from the soil in Chongqing. It was identified as the member of pseudomonas. Gram positive bacteria are badly suppressed by it. The antibiotic secreted by 20 #-5 can endure 100℃ for half an hour, and it can also go through the ultrafiltration membrane with pores of 0.22?m.

A strain was isolated from internal organ of died porcine about 8 weeks with purulent pneumonia,arthritis,pyogenic arthritis and endocarditis in April 2007.Objectives of the study are to confirm the genus of the strain,pathopoiesis,and drug sensitivity.The mainly study methods:the first,the strain was identified by the phenotype and the characteristics of the biochemistry,sequence 16S rDNA genes of the strain was analyzed by molecular biology technology,finally animal experiment and drug sensitivity testing were done.The results of the phenotype and the characteristics of the biochemistry showed that it is greatly similar to Actinomyces hyovaginalis,16S rRNA sequence analysis exhibited the homology achieved to 99.2% com-pared with group III strains of Actinomyces hyovaginalis,and the phyletic evolution analysis also indicated that it has mostly relationship with group III strains of Actinomyces hyovaginalis.Animal experiment dis-covered it has highly pathogenicity to Mus musculus albus;Drug sensitivity testing showed that it is hyper-sensitive to Erycin,Gentamicin and Amikacin.So,the result of the study confirmed that the strain is Actin-omyces hyovaginalis III with the pathogenicity.

Objective To further improve the quality of nursing in Department of Respiratory Medicine by implementing effective personnel management.Methods The chief nurse began to implement a systematic nursing management model from June to December in 2010,and the quality of nursing was compared with that from June to December in 2009.Results The average quality control score in Department of Respiratory Medicine increased from (86.45 ± 4.32 ) in 2009 to (93.37 ± 3.76) in 2010,and there was significant difference between them ( t =1.986,P ＜ 0.01 ).The satisfaction rate of hospitalized patients towards the nurse increased from 93.82％ in 2009 to 98.29％ in 2010,and there was significant difference between them( x2 =30.787,P ＜ 0.01 ).Conclusions Effective personnel management could significantly improve the quality of nursing,which could be further elevated with better nurse team management.

OBJECTIVETo study the protective effect of Shenxiong injection on the cerebral ischemia-reperfusion injury of senile rats.

METHODTotally 108 Sprague-Dawley (SD) rats were randomly divided into the sham operation group, the model group, the Ni-modipine group and Shenxiong injection groups (low, middle, and high doses). The rat brain ischemia-reperfusion model was established by the middle cerebral artery occlusion (MCAO) method in rats, in order to observe the effect of Shenxiong injection on neurological score and brain infarct volume of rats with cerebral ischemia-reperfusion injury, and determine the contents of NOS, NO, SOD, MDA and LDH in brain tissues. The contents of TNF-alpha and IL-1beta levels in brain tissues were measured by enzyme-linked immunosorbent assay (ELISA) method.

RESULTShenxiong injection could significantly decrease neurological score, injury degree of brain tissues and brain infarct volume of rats with cerebral ischemia-reperfusion injury, increase the vigor of SOD, decrease the levels of MDA, NO, NOS and LDH, and inhibit IL-1beta and TNF-alpha expressions.

CONCLUSIONShenxiong injection has the obvious protective effect on the brain ischemia-reperfusion injury in rats. Its mechanism may be related to the improvement of neurological function, the reduction of free radical injury, and the inhibition of inflammation factor expression.

Animals ; Brain ; blood supply ; drug effects ; metabolism ; Brain Ischemia ; complications ; Drugs, Chinese Herbal ; administration & dosage ; pharmacology ; therapeutic use ; Injections ; L-Lactate Dehydrogenase ; metabolism ; Male ; Malondialdehyde ; metabolism ; Nitric Oxide ; metabolism ; Nitric Oxide Synthase ; metabolism ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; complications ; drug therapy ; enzymology ; metabolism ; Superoxide Dismutase ; metabolism

To investigate the feasibility of using recombinant adeno-associated virus type 1 vector as prophylactic vaccine against HPV16 infection, rAAV1-mod. HPV16L1, the recombinant AAV1 vector containing codon-modified HPV16 L1 gene, was constructed. C57BL/6 mice were immunized with purified rAAV1 vector through intramuscular and intranasal inoculation routes, and the titer of neutralizing antibody was determined by neutralization assay based on HPV16 pseudovirus. The result shows that the single dose of rAAV1-mod. HPV16L1 can induce specific neutralizing antibody in serum through both inoculation routes. Compared with intranasal group, intramuscular group can induce higher titer of neutralizing antibody. Eliciting strong and prolonged neutralizing antibody in serum, the rAAV1-mod. HPV16L1 is one of promising HPV16 prophylactic vaccine candidates.
Animals ; Antibodies, Viral ; blood ; Capsid Proteins ; genetics ; immunology ; Dependovirus ; genetics ; Female ; Mice ; Mice, Inbred C57BL ; Oncogene Proteins, Viral ; genetics ; immunology ; Papillomavirus Vaccines ; administration & dosage ; immunology ; Vaccination ; Vaccines, Synthetic ; administration & dosage ; immunology

Objective To evaluate the immune potency of recombinant adenovirus combined with rAAV1 vector expressing HPV16L1 protein in mice. Methods The rAdV and rAAV1 vector containing cedon-medified HPV16L1 gene was constructed using Admax and AAVmax packaging system respectively. C57 BL/6 mice were immunized with purified rAdV and rAAV1 vector through intramuscular and intranasal inoculation routes,and the titer of neutralizing antibody was determined by neutralization assay based HPV16 pseudovirus. Results Intramuscular immunization by rAAV1-med. HPV16L1 or combined with tAd-reed. HPV16L1 can induce higher titer of neutralizing antibody in serum than that of other groups. The titer of neutralizing antibody of intranasal groups is significantly lower than that of intramuscular group,although the prime-boost atrategy using in intranasal group was effective to enhance the specific humoral immunity. Conclusion The rAAV1-med. HPV16L1 combined with tAd-reed. HPV16L1 can induce higher titer of neutralizing antibody in serum through intramuscular route than that of other groups at the 16th week after the first immunization.

OBJECTIVETo understand the distribution of chronic disease related behavior and lifestyle in adults from Beijing.

METHODS16,658 adult residents from Beijing city were randomly selected with stratified multi-stage cluster sampling method in 2005. Each participant was invited to receive a set of standardized questionnaire, physical examinations and laboratory tests.

RESULTSIn the adults living in Beijing, 33.2% were overweight and 16.4% were obesive. The current smoking rate was 26.2% and the regular smoking rate was 21.4%. 57.7% of the male and 4.6% of the female adults were current smokers. In male adults, 64.3% drank alcoholic beverage at least once per month while 16.1% drank almost everyday, 16.5% drank more alcohol than moderate, and 18.5% were binge drinkers. 46.0% of Beijing adults were in lack of active physical exercise. Unhealthy dietary habits such as:excess consumption of sodium or oil, lower intake of vegetable, milk and soybean productions, skipping breakfast, fond of salted vegetable and fried food intake, as well as eating snacks etc. were quite commonly seen in the adults from Beijing. In addition, most of the risk factors had a higher prevalence in the suburban areas and population at working-age.

CONCLUSIONThe prevalence rate of chronic risk factors was still high in adults of Beijing. Effective interventions should be carried out to prevent further worsening of the situation, especially in the suburban areas and people at working-age.

Adolescent ; Adult ; Age Distribution ; Aged ; Aged, 80 and over ; Alcohol Drinking ; epidemiology ; China ; epidemiology ; Chronic Disease ; epidemiology ; Feeding Behavior ; Female ; Health Behavior ; Humans ; Life Style ; Male ; Middle Aged ; Obesity ; epidemiology ; Overweight ; epidemiology ; Smoking ; epidemiology ; Surveys and Questionnaires ; Young Adult

Background and purpose:Cyclooxygenase-2 (Cyclooxygenase-2,COX-2) is an important rate-limiting enzyme that is responsible for transformation of arachidonic acid into prostaglandins(PGs).Although Helicobacter pylori(Hp) infection-induced gastric over-expression of COX-2 (COX-2) is an important factor of gastric cancer,the mechanism of COX-2 expression in gastric mucosa cells infected with Hp is still not clear.Our study was to reveal the effect of Hp on expression of COX-2(cyclooxygenase-2),the impact of p38MAPK signaling pathway in human gastric epithelial cancer cells line MKN45,and to investigate the potential mechanisms of expression of COX-2. Methods:The expression of COX-2 mRNA infection by standard Hp NCTC11637 in human gastric epithelial cancer cells line MKN45 was evaluated by real-time fluorogenic quantitative polymerase chain reaction (RFQ-PCR).The effect of infection by Hp on COX-2 expression,activation of p38MAPK and its downstream of the ATF-2 was assayed by Western blot.Results:The expression of COX-2 mRNA in MKN45 cells infected by Hp compared with control group,COX-2 mRNA had 3 fold,7.2 fold,5.1 fold,4.3 fold up-regulation after 3 hrs,6 hrs,9 hrs,12 hrs,respectively. COX-2 mRNA expression in each time group was significantly higher than that in the control group(P

Adolescent ; Adult ; Dust ; analysis ; Female ; Health Status ; Humans ; Male ; Middle Aged ; Occupational Exposure ; analysis ; Pneumoconiosis ; prevention & control ; Sentinel Surveillance ; Surveys and Questionnaires ; Welding ; Young Adult

OBJECTIVETo investigate the clinical manifestations, imaging characteristics as well as prognosis of neonatal polycythemia complicated with brain damage.

METHODSOne hundred and sixteen in-patients with neonatal polycythemia admitted to our hospital during January 2003 to October 2005 were analyzed. Their clinical manifestations were observed. Craniocerebral ultrasonic examination (2D, 3D), CT and MRI were employed to dynamically observe the craniocerebral imaging variances as well as the cerebral hemodynamic variations and near infrared spectroscopy (NIR) was adopted to test the cerebral oxygenation. Twenty-two cases with moderate or severe disease were followed up for 3 to 12 months.

RESULTSOut of the 116 polycythemic neonates, 53 cases had brain damages, of whom 31 had mild, 14 had moderate, and 8 had severe damages. Cranial imaging alterations were mostly ischemic injuries of various areas of different severity. The severity of brain damage was closely related to the duration of polycythemia, oxygen saturation of cerebral tissues as well as cerebral hemodynamic abnormalities. Brain injury was likely to occur in those whose polycythemia persisted for more than three days. The regional saturation of oxygen (rSO(2)) in mild brain injury cases was found to be 52.1%, while it was 47.1% in moderate and severe brain injury cases. Compared to the 58% as found in non-brain injury cases, the variance was found to be statistically significant (F = 104.466, P < 0.01). Among the cases with brain injury, cerebral hemodynamics displayed a slowdown in the blood flow velocity in the cerebral anterior artery and medium artery during the systolic phase and/or the diastolic phase. The abnormality ratio was closely related to the severity of brain injury. Through the chi(2) test the variance was proved to be statistically highly significant (chi(2) = 18.889, P < 0.01), however it was not correlated with the increase of the initial levels of hemoglobin (Hb) and hematocrit (HCT) (P > 0.05). During the follow up, neurological developmental abnormalities of various severity were found to exist in the cases with moderate (5/12) and severe disease (7/8), while cerebral palsy or epilepsy was not yet found.

CONCLUSIONNeonatal polycythemia might tend to bring about a reduction in the perfusion of cerebral blood flow and damaged cerebral oxygenation metabolism which in turn might lead to cerebral ischemic injury, which in some of the moderate and severe cases might lead to long-term neurological complications. Imaging investigations especially craniocerebral ultrasonic examination could be the practical means for the early diagnosis and evaluation of prognosis.

Brain ; pathology ; Brain Damage, Chronic ; complications ; Cerebrovascular Circulation ; Female ; Humans ; Infant, Newborn ; Infant, Newborn, Diseases ; Magnetic Resonance Imaging ; Male ; Polycythemia ; complications ; Skull ; diagnostic imaging ; Tomography Scanners, X-Ray Computed ; Ultrasonography