Abstract: Objective To investigate the clinical distribution characteristics, drug resistance trends and the carrying of antiseptic resistance gene of Pseudomonas aeruginosa infection in children in Suzhou, in order to provide theoretical basis for the prevention and treatment of Pseudomonas aeruginosa infection in children. Methods The clinical distribution characteristics and drug resistance trends of Pseudomonas aeruginosa isolated from Children's Hospital of Soochow University from 2016 to 2021 were retrospectively analyzed. Forthermore, 101 strains of Pseudomonas aeruginosa were randomly selected to detect the expression of 9 antiseptic resistance genes (qacEΔ1-sul1, qacE, qacEΔ1, qacG, sugE(p), sugE©, emrE, ydgE, ydgF) by polymerase chain reaction. Results Pseudomonas aeruginosa in Soochow University Children's Hospital was mainly isolated from respiratory specimen (47.83%), pus (28.60%) and urine (11.72%); the main departments were intensive care unit(21.45%), general surgery department (15.71%) and respiratory department (12.31%). Patients were mainly aged from 1 month to 1 year old and older than 6 years old (34.31% and 25.38%). The top three drug resistance rates of Pseudomonas aeruginosa were imipenem (11.25%), aztreonam (9.26%) and meropenem (8.02%). Among the 853 strains of Pseudomonas aeruginosa, the drug-resistant strains were mainly from the intensive care unit (58/183), hematology department (33/91), neonatology department (31/96), and there were 57 strains of multi-drug-resistant strains with the detection rate of 6.68%. There were 98 strains (11.49%) of Carbapenem resistant Pseudomonas aeruginosa, and the annual detection rates were 22.06%, 8.40%, 3.60%, 5.67%, 9.85% and 17.20%, respectively. Among the 9 antiseptic resistance genes, the carrying rate of ydgF, sugE© and qacE was 98.02%, 94.06% and 0 respectively. Conclusion Pseudomonas aeruginosa has high resistance to some drugs, so attention should be paid to rational drug use. The carriage rates of of two antiseptic resistance genes exceeded 90%, indicating the need to strengthen research on the mechanism of antiseptic resistance research and rational use of disinfectants

Humans ; Laryngeal Neoplasms ; radiotherapy ; Radiation Tolerance ; Radiotherapy

Objective To explore the relationship between the clinical features and the bacteria quantity confirmed by semi-quantitative culture of sputum in hospitalized infants with wheezing diseases.Methods Nine hundred and fifty-seven patients with wheezing diseases were enrolled from Jan.1,2010 to Dec.3 1,2011,and their clinical characteristics were collected.Respiratory seeretions were collected on admission by the pathogenic examination.They were grouped into 3 groups by the bacteria quantity,and the predictive analytics statistical saftware 20.0 was used to analyze the relationship between the clinical features and the bacteria quantity confirmed by semi-quantitative culture of sputum.Results 1.A total of 372(38.87％,372/957 cases)patients had positive sputum cuhures,and there were 585 patients in 0 + group,225 patients in 1 +-2 + group,147 patients in 3 +-4 + group;the main pathogens in 1 +-2 + group were haemophilus influenza (24.89％,56/225 cases) and streptococcus pneumonia (16.00％,36/225 cases) ;the main pathogens in 3 +-4 + group were streptococcus pneumonia(54.42％,80/147 cases) and haemophilus influenza(8.84％,13/147 cases).2.Presence of siblings,cyanosis,neutrophils and C-reactive protein were higher in 3 +-4 + group when compared with those of 0 + group,shortness of breath was common in 1 +-2 + group.3.Multinomial Logistic regression analysis identified the presence of siblings,residence,passive smoking,course of disease and cyanosis were identified as risk factors in 3 +-4 + group; gender,fever peak ＞ 38.5 ℃,breast-feeding,passive smoking,age,course of disease and cyanosis were as risk factors in 1 +-2 + group.4.Severe pneumonia was common in 3 +-4 + group.Conclusions Bacterial are often detected in infants hospitaled with wheezy episodes,and bacteria quantity is correlated with clinical presentation.Severe pneumonia is common in higher bacteria quantity group.

Objective To evaluate the clinical effect of salmeterol xinafoate and fluticasone propionate powder for inhalation combined ipratropium bromide aerosol in patients with stable chronic obstructive pulmonary disease (COPD).Methods One hundred and twenty patients with stable COPD was randomly divided into control group and observation group with 60 patients each.The control group was received ipratropium bromide aerosol inhalation,and the observation group was given salmeterol xinafoate and fluticasone propionate powder for inhalation and ipratropium bromide aerosol for 6 months.BODE index,SGRQ scores,plasma cortisol and bone mineral density were compared between two groups before and after treatment.Results BODE index scores had no significant difference between two groups before treatment (P＞0.05).After treatment,BODE index scores,dyspnea scale,FEV1％,6MWD and BODE index total scores in observation group were superior to those in control group [ (1.9 ± 0.5) grades vs. (2.3 ± 0.5)grades,(58.5 ± 7.3)％ vs.(50.4 ± 6.2)％,(411.1 ± 56.8) m vs.(347.5 ± 60.4) m,(3.3 ± 1.0) scores vs.(3.8 ± 1.3 ) scores ],there were significant differences (P＜0.05 ).SGRQ scores had no significant difference between two groups before treatment (P＞0.05 ).After treatment and in SGRQ scores,respiration symptom,limitation of activity,disease influence scores in observation group were significantly lower than those in control group [ (20.7 ± 10.3 ) scores vs.(37.9 ± 14.4) scores,(20.7 ± 9.5 ) scores vs.(34.8 ± 13.0) scores,(16.3 ± 6.7) scores vs.(27.2 ± 11.8) scores,(17.5 ± 7.0) scores vs. (34.6 ± 12.3) scores],there were signiticant differences (P＜0.01 ).There were no significant difference of plasma cortisol and bone mineral density between two groups (P＞0.05).Conclusions Salmeterol xinafoate and fluticasone propionate powder for inhalation and ipratropium bromide aerosol in patients with stable COPD can greatly improve the lung function and life quality and with less adverse reaction.

Objective To evaluate the clinical effect and influential factors of intrauterine device (IUD) after insertion under B-type ultrasound guidance. Methods A total of 434 healthy women of childbearing potential, aged for 18 to 40 years were enrolled. After IUD insertion under ultrasound guidance, the uterine profile was observed during the procedure and the patients’ biological characteristic was recorded and gynecologic examiation was performed at month 1, 3, 6, 12, 18 during following up. All data were analyzed with SPSS software. Results There was no accident in operation.In 18 months after IUD insertion, the pregnancy rate with IUD was 1.94%,the expulsion rate was 4.59% and the removal rate was 5.54%. The risk factors of expulsion were the history with cesarean delivery and artificial abortion plus IUD insertion (P

OBJECTIVETo observe reversal of ventricular remodeling by the protein kinase C inhibitor Scutellarein in spontaneously hypertensive rats (SHRs).

METHODSTwelve SHRs were randomly divided into two groups. Scutellarein and saline (10 mg x kg(-1) x d(-1)) were given by intraperitoneal injection to two groups of rats separately. Systolic blood pressure (SBP) and ventricular weight index (LVW/BW, RVW/BW) were measured. A polarization microscope and an image analyzer system (IAS) were used to observe changes in cardiovascular structure and to count the content of cardiac muscle interstitial collagen.

RESULTSThe pathologic changes in the left ventricle in the Scutellarein group rats (SHR(D)) improved to varying degrees, including hypertrophy of the cardiac muscle and collagen volume fraction.

CONCLUSIONScutellarein can reverse ventricular remodeling, improve myocardial stiffness and protect heart cardiac muscle.

Animals ; Female ; Flavanones ; Flavonoids ; pharmacology ; Hypertension ; physiopathology ; Male ; Protective Agents ; pharmacology ; Protein Kinase C ; antagonists & inhibitors ; Random Allocation ; Rats ; Rats, Inbred SHR ; Ventricular Remodeling ; drug effects

ObjectTo study the effect of polydatin (PD) and asymmetric dimethylarginine (ADMA) on the endothelial function in aorta vascular strips of healthy rabbits and the interaction between PD and ADMA. MethodsDose-response curves of phenylephrine (PE) on the aortic strips with or without ADMA and/or PD. E max and Kd from PE were obtained and compared. ResultsNormal aortic strips could not respond to ADMA. Pretreatment with either PD or ADMA had no effect on the contractive response of aortic strips to PE. But PD could significantly weaken the contractive response of aortic strips pretreated with ADMA caused by PE in a dose-dependent manner, increase Kd and decrease E max of PE. ConclusionEither ADMA or PD alone does not influence the normal aortic strip contractive functions, the PE affinity to ?-receptor, and E max. But PD could noncompetitively antagonize the contractive reaction of aortic strips to PE in the presence of ADMA.

This experiment was designed to study the relationship of vitamin A with the immunocompetence of rats. On the base of a vitamin A-deficient diet, the rats were supplemented with a dose of vitamin A acetate that was two times the requirement of rats for vitamin A. Furthermore we had observed the effect of carbamate pesticide-sevin on the immune system of rats at different diets for nine weeks in all (group A: basic diet supplemented with 400 IU vitamin A per 100g diet; group B: basic diet only; group C: basic diet with 400 IU vitamin A and 100mg sevin per 100g diet; group D: hasic diet with 100mg sevin per 100g diet). On the end of feeding, the levels of serum vitamin A were significantly lower in rats fed on vitamin A-deficient diets than in that supplemented with vitamin A, but there were no obvious signs of vitamin A deficiency and toxic symptoms of sevin in any animals. Supplement of vitamin A to basic diet increased the levels of total serum complements, enhanced the antibody response of the animals to sheep RBC, and decreased the activity of serum lysozyme. Sevin could inhibit the antibody response to sheep RBC at vitamin A-deficiency state, but not at well-nourished state of vitamin A.

The energy expenditure in the late stage of pregnancy was studied. The workers of three kinds including spinner, sewers and kindergartners were selected, and ten healthy pregnant women were matched to non-pregnant as subjects. Energy consumption was measured by indirect method and calculated from dietary survey. The results showed that the energy expenditure for spinner, sewer and kindergartner in pregnancy was 9.5474, 10.1253 and 8.7287 MJ/day, but for non-pregnant woman was 9.4453 10.1281 and 8.1567 MJ/day respectively. Calorie intake was 10.8910, 11.2424 and 9.9830 MJ/day for pregnant women, but 9.2215, 10.4474 and 8.6734 MJ/ day for the non-pregnant women respectively. The difference of energy consumptions between the pregnant and non-pregnant women was not significant, but the calorie intake for the pregnant women was signigicantly higher (0.8368 MJ/day) than the non-pregnant. According to the energy consumption, we recommend the calorie intakes in the late stage of pregnancy may increase 0.8368 MJ/day.