Objective:To develop a perioral force measurement system for the infants with cleft lip and palate.Methods:The peri-oral force measurement system of infant with cleft lip and palate is composed of hardware and software.The sensor is metal cantilever. The measurement ranges are 0 -20 and 0 -1 00 g/cm2 ,and the precision is 0.1 g/cm2 .The system was used in 4 cases of infants with unilateral cleft lip and palate before and after cheiloplasty.The results were analyzed by SPSS 1 9.0 software.Results:Before cheilo-plasty the perioral force of labial frenum area was (1 .79 ±0.94)g/cm2 ,that of angulus oris area of normal side and cleft side was (5. 41 ±1 .01 )g/cm2 and (3.1 2 ±1 .55)g/cm2 (P <0.05);after cheiloplasty:the perioral force of labial frenum area was (1 2.73 ±3. 51 )g/cm2 ,that of angulus oris area of normal side and cleft side was (7.64 ±1 .64)g/cm2 and (7.27 ±1 .89)g/cm2 .Conclusion:The perioral force measurement system can be used to measure the perioral force of the infants with cleft lip and palate.

Objective To investigate the pathogenesis, distribution of the pathogens and resistance pattern of nosocomial pneumonia in patients with diseases of central nervous system(CNS).Methods Bacterial typing was conducted on the 59 strains separated from the sputum of 59 patients of nosocomial pneumonia with CNS diseases in our hospital in 2002.MIC drug sensitive test in vitro was conducted with the most common 15 antibiotics.Results The most common pathogens of nosocomial pneumonia in the diseases of CNS were:Staphylococcus aureus 23.7%,Pseudomonas aeruginosa 22.0%,Acinetobacter baumannii 18.6%,Klebsiella pneumoniae 8.5% Xanthomonas maltophilia 6.8%?According to the drug sensitive test,antimicrobial-resistant gram-negative bacilli were increasing.None of the vancomycin-resistant MRSA variant was seen.Conclusion The risk factors of nosocomial pneumonia in the diseases of CNS are long hospital stay,respiratory tract invasive operation and unreasonable antibiotic therapy.The most common pathogens were Staphylococcus aureus,Pseudomonas aeruginosa,Acinetobacter baumannii,Klebsiella pneumoniae and Xanthomonas maltophilia.Effective and infection-control procedures,surveillance systems and appropriate antimicrobial selection are key methods in limiting nosocomial pneumonia and antimicrobial-resistant pathogen occurrence.

Objective To explore the relationship of neutrophil and interleukin-8(IL-8)with exercise-induced asthma(EIA).Methods From May 15,2001 to Dec 19.2005 the levels of peripheral neutrophil superoxide anion and IL-8 in the blood and the induced sputum from patients with EIA,non EIA and normal control subjects were measured respectively before and after exercises,meanwhile a comparison was made among them.Results Before exercise:the level of neutrophil superoxide anion was slightly higher in EIA group and non EIA group than that in control group;however,the differences were insignificant;the IL-8 and MDA levels in blood and induced sputum were higher in EIA group and non EIA group than those in control group,but there was no significant difference between EIA group and non EIA group;however,they were significantly different between EIA group and control group,non EIA group and control group respectively( P 0.05).Conclusion Oxyradical produced by neutrophil and IL-8 has significant effect on the production of EIA.

Objective To explore the role of matrix metalloproteinase 9(MMP-9)and tissue inhibitor of metalloproteinase-1(TIMP-1)in patients with acute exacerbation of severe chronic obstructive pulmonary diseases (AECOPD)treated with glucocorticoids.Methods The serum levels of MMP-9 and TIMP-1 were measured by ELISA in 41 patients with AECOPD before and after treatment with glucocorticoids and in 40 patients with regular methods(control group).Results ①After treatment with glucocorticoids,the serum levels of MMP-9(189.25±52.38)μg/L、TIMP-1(198.38±43.45)μg/L,ratio of MMP-9/TIMP-1(0.92±0.37)were decreased significantly than before((246.10±68.64)μg/L,(217.63±62.34)μg/L,(1.09±0.23))(P<0.01,P<0.05,P<0.05);but there were no differences(P>0.05)in regular methods(control group);② After treatment with glucoeorticoids, FEV_1、FEV_1%((0.83±0.35)L,(46±17)%)were impmved than before((0.72±0.48)L,(34±15)%)(P<0.05).Conclusions After treatment with glucocorticoids,the serum levels of MMP-9、TIMP-1、ratio of MMP-9/TIMP-1 from patients with COPD were decreased significandy,and FEV_1、FEV_1%were improved significant;Glucocorticoids can alleviate severs AECOPD to some degrees,which might be related to improving the imbalance of MMP-9/TIMP-1.

OBJECTIVE To study the Pseudomonas aeruginosas drug resistance in intensive care unit and its fluoroquinolone-resistant molecular mechanism,and provide scientific basis for rational employment of antibiotics in clinic. METHODS E test was used to determine the minimal inhibitory concentrations(MIC) of 13 antibiotics against 83 P. aeruginosa strains. Twenty-eight fluoroquinolone-resistant strains were selected with standard sensitive strain-ATCC27853 as control. The quinolone resistance-determining region(QRDR)of the gyrA and parC genes was amplified by PCR and sequenced. RESULTS The positive rate of P. aeruginosa in sputum specimen was the highest from 83 strains (71.08%). gyrA Genes of all resistant strains had an ACC to ATC mutation in codon 83,leading to the amino acid substitution of threonine for a an isoleucine and 11 high level resistant strains also showed a GAC to GGC mutation in codon 87,leading to the substitution of an aspartic acid a glycine for. In addition,14 resistant strains also had an TCG to TTG mutation in codon 87 of parC gene,leading to the amino acid substitution of a serine for a leucine. We didn't find parC gene mutation existing independent in fluoroquinolone-resistant P. aeruginosa. CONCLUSIONS Meropenem remains highly active against P. aeruginosa. But the abuse of imipenem and other fluoroquinolones leads to rise in their drug-resistance rate. Fluoroquinolone-resistance has increased rapidly,the mechanism of resistance is gene mutant. It displayed that gyrA and parC gene mutation is associated with fluoroquinolone resistance.

OBJECTIVEThis study aimed to observe the postoperative pain rate and degree of pain in preschool children with cleft lip and palate, and investigate the effect of nursing intervention on pain relief.

METHODSA total of 120 hospitalized cases of three- to seven-year-old preschool children with cleft lip and palate were selected from May to October 2011. The subjects were randomly divided into the control group and experimental groups 1, 2, and 3. The control group used conventional nursing methods, experimental group 1 used analgesic drug treatment, experimental group 2 used psychological nursing interventions, and experimental group 3 used both psychological nursing intervention and analgesic drug treatment. After 6, 12, 24, and 48 h, pain self-assessment, pain parent-assessment, and pain nurse-assessment were calculated for the four groups using the pain assessment forms, and their ratings were compared.

RESULTSThe postoperative pain rates of the four groups ranged from 50.0% to 73.3%. The difference among the four groups was statistically significant (P < 0.001). The differences among the control group and experimental groups 1 and 2 were not statistically significant (P = 0.871), whereas the differences among experimental group 3 and the other groups were statistically significant (P < 0.001).

CONCLUSIONPostoperative pain in preschool children with cleft lip and palate is common. Psychological nursing intervention with analgesic treatment is effective in relieving postoperative pain.

Aim To investigate the cytotoxicity of XN4 against AML cells, and the underlying mechanisms by which XN4 might induce DNA damage and apoptotic cell death through reactive oxygen species ( ROS ) . Methods The proliferation inhibition ratio of AML cells was measured by MTT. The level of extracellular ROS, DNA damage, cell cycle process and apoptosis were tested by flow cytometry ( FCM ) . Western blot was applied to test the expression of proteins. Results XN4 significantly inhibited the proliferation of HL-60 and KG1α with IC50 ( 2. 79 ± 0. 15 ) μmol · L-1 and (2. 76 ± 0. 20) μmol·L-1 respectively. XN4 signifi-cantly increased the generation of intracellular ROS, followed by inducing DNA damage and activating the ATM-γ-H2AX signaling, which led to increases of cells in the S phases of the cell cycle. Subsequently, XN4 induced apoptotic cell death through activation of caspase-3 and Parp. Moreover, the above effects were all reversed by the ROS scavenger N-acetylcysteine ( NAC ) . Conclusion XN4-induced DNA damage and cell apoptosis in AML cells are mediated via ROS generation.

OBJECTIVE To explore the effect of vacuum packaging technique for storing sterilized packs in order to extend the period of valid storing.METHODS From 420 sterilized packages 210 were randomly taken as a test group,and the other 210 packages as the control group.According to aseptic techniques the packages of test group were vacuumized and the control group was packed as by outine protocol.Two groups were simultaneously stored in aseptic closet,and then regularly taken out 30 samples from two groups respectively for microbial(culturing).RESULTS Bacterial growth was seen in the control group at first month.But none of the specimens in test group showed any microbial growth until the eighth month.There was a statistically significant difference((P

OBJECTIVE To explore the effect of smearing catheter surface with chloramphenicol for preventing catheter -associated urinary tract infections. METHODS Totally 100 cases of preoperative patients needed for indwelling urethral catheters were randomly grouped, 50 of 100 cases as test group, and the others 50 cases as the control group. Catheters after smearing surface with chloramphenicol were inserted using aseptic technique in the test group, urinary catheters without using chloramphenicol were inserted in the control group according to routine aseptic technique protocol, and then regularly taken out urinary specimen from two groups respectively for microbial culture. RESULTS The observation showed bacterial growth positive rate was 30%, and 66.7%, respectively in the control group, but positive rate was 6.7%, and 30%, respectively in the test group after the seventh day and the tenth day. There was a statistic significant difference (P

Objective To investigate the application and effect of aerobic exercise of pulmonary rehabilitation in patients with chronic obstructive pulmonary disease (COPD).Methods Ninety-four hospitalized patients with COPD from June 2011 to June 2012 were enrolled.The clinical curative effect and safety of aerobic exercise of pulmonary rehabilitation in patients with COPD were observed and compared.Results After 3 months treatment,first second forced expiratory volume (FEV1) and forced vital capacity (FVC) were increased compared with those before treatment [(3.25 ± 0.49) L vs.(2.59 ± 0.55) L,(1.95 ± 0.41) L vs.(1.44 ± 0.48) L],and there were significant differences (P ＜ 0.05).There was no significant difference in FEV1/FVC before and after treatment (P ＞ 0.05).After 3 months treatment,arterial partial pressure of oxygen and arterial oxygen saturation were increased compared with those before treatment [(87.61 ± 8.56) mm Hg(1 mm Hg =0.133 kPa) vs.(63.88 ± 8.79) mm Hg,0.9648 ±0.0449 vs.0.7632 ± 0.0477],partial pressure of arterial carbon dioxide was decreased compared with that before treatment [(30.57 ± 9.47) mm Hg vs.(49.23 ± 9.54) mm Hg],and there were significant differences (P ＜ 0.05).There was no signifi.cant difference in blood pressure and heart rate before and after treatment (P＞ 0.05).No obvious adverse reactions were observed.Conclusions The aerobic exercise of pulmonary rehabilitation can improve significantly lung function.It is safe and rehable,and has less adverse reaction in patients with COPD.It is worthy of promotion and use.