1.Research of health education needs for parents of children with attention deficit hyperactivity disorder
Chinese Journal of Practical Nursing 2015;31(7):528-530
Objective In order to assist the medical staff to take appropriate contents and ways of health education,and to promote the recovery of physical and mental health of children with attention deficit hyperactivity disorder (ADHD),the needs of the parents about how to help them acquire the related knowledge were investigated.Methods A survey on the degree of familiarity of nursing knowledge,the requirements and the ways for getting the knowledge about the health education was carried out.Results The rate of 226 parents who knew about nursing knowledge was 10.62%-87.61% (24/226-198/226).More than half of the parents needed health education.The rates of concerns were as follows,92.48% (209/226) of all the parents concerned on the factors affecting prognosis,94.69%(214/226) on the comorbidities,92.04% (208/226) on the training methods of attention,and 91.15% (206/226) on psychological and behavioral interventions.Conclusions Parents could acquire related knowledge and educational methods about ADHD from the medical staff and afford a good care,which may improve behavior problems and mental health of the children with ADHD.
2.The Simultaneous Determination of Gatifloxacin and Tinidazole by HPLC.
Journal of Medical Research 2006;0(09):-
Objective To establish a reversed HPLC method to determine the contents of gatifloxacin and tinidazole simultaneously. Methods ODS C_ 18 column (4.6mm?250mm,5?m) was used as an analytical column. The mobile phase consisted of 15% acetonitrile, 25% of methanol and 60% of 0.05mol/L KH_2PO_4 buffer,which contained 0.5% triethylamine and was adjusted to pH 3.5 by phosphoric acid. The flow rate was 1ml/min. The detection wavelength was 318nm. The column temperature was 30℃. 20?l of diluted sample solution was injected to the sampler. Results The calibration curve of gatifloxacin was linear in the range of 2~20?g /ml (r=0.999 6) ,and that of tinidazole was 2~20 ?g /ml (r=0.999 9). The recovery rates of them were 100.1% and 100.4%,respectively. RSDs of both drugs were less than 1.1 %. Conclusions The method is simple,accurate and sensitive and can be used to determine the two components simultaneously.
3.The biology and potential clinical application of bone marrow-derived stem cells
Academic Journal of Second Military Medical University 1981;0(04):-
Bone marrow-derived stem cells, mainly including hematopoietic stem cells, mesenchymal stem cells, multipotent adult progenitor cells, etc., are the most densely studied adult stem cells up to now. Recent findings indicate that adult stem cells have the potential to differentiate across lineage barriers and to adopt the expression profiles and functional phenotypes of cells unique to other tissues. This flexibility is termed "plasticity",which has posed challenges to conventional concepts. Meanwhile, it brings new hopes for the therapeutic application of cell engineering and tissue engineering. This review focuses on the biological features, the plasticity and its possible mechanisms, research method and potential clinical application of bone marrow-derived adult stem cells
5.Detection of the qnr gene responsible for plasmid-mediated quinolone resistance
Xia LII ; Cong-Rong LI ;
Chinese Journal of Infection and Chemotherapy 2007;0(01):-
Objective To explore the prevalence of qnr gene in gram-negative bacteria isolated from Renmin Hospital of Wuhan University. Methods qnr gene was detected by PCR in non-duplicate E.coli (n=129), E.cloacae (n=10) and K.pneumoniae (n=29) isolates.PCR technique was used to amplify the gene encoding type I integrons.Kirby-Bauer disk diffusion method was used to test the in vitro suscepti- bility of the isolates to 16 antimicrobial agents.ESBLs were investigated according to phenotypie screening and confirmatory test recom- mended by NCCLS.MIC values of ciprofloxacin were determined for qnr gene positive strains.Results qnr gene were identified in 6 clinical isolates including 5 strains of E.coli and I E.cloacae, qnr gene was not found in K.pneumoniae isolates.The 6 qnr-positive clinical iso- lates were positive for type I integrons.All the 6 strains were susceptible to imipenem but resistant to many other drugs tested.Only 2 of the E.coli isolates were susceptible to ciprofloxacin.Conclusions In Hubei Province, the prevalence of qnr is confirmed.The serious situa- tion of multidrug-resistance in clinical isolates with qnr gene requires careful monitoring of qnr-carrying isolates.
6.Application of care methods in monitoring of occupational injuries.
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(4):297-299
China
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epidemiology
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Disease Notification
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standards
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Epidemiologic Methods
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Humans
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Models, Statistical
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Occupational Diseases
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epidemiology
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prevention & control
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Occupational Health Services
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statistics & numerical data
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Registries
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Wounds and Injuries
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epidemiology
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etiology
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prevention & control
7.A clinical analysis of 36 cases of systemic lupus erythematosus with lupus mesenteric vasculitis
Xia RONG ; Yi LIU ; Xiangyang HUANG
Chinese Journal of Rheumatology 2015;19(4):238-241
Objective To analyze the clinical profiles of lupus mesenteric vasculitis (LMV).Methods Thirty-six SLE patients diagnosed with LMV and 72 SLE patients (1:2) without LMV at West China Hospital between October 2009 and January 2012 were enrolled.The imaging,clinical manifestation,laboratory examinations data were analyzed retrospectively.Quantitative differences were analyzed by the Student's t and Z tests and qualitative data were compared with Chi-square.P value less than 0.05 was considered as statistically significant.Results ① The prevalence of LMV in patients with SLE was 1.2%(36/3 051),while 47%(17/36) as the initial symptom of SLE.Thirty-six LMV patients were all female.The prevalence of abdominal pain was 78%(28/36),nausea or vomitting was 58%(21/36),abdominal distension was 50%(18/36),diarrhea was 47.2% (17/36),intestinal perforation was 3% (1/36) and incomplete obstruction was 8% (3/36).Enhanced CT scan showed 81%(25/31) patients suffered from intestinal dilation and (or) mesenteric edema;SLEDAI (17±5),C3 (0.44±0.25) g/L,C4 (0.10±0.09) g/L,Z value on above items were 4.30,-3.85 and-2.94 respectively compared to SLE patients without LMV,and all P<0.05,the differemces were significant.In addition,Also,the proportion of ANA and anti-ENA antibody showed no significant difference.68.6%(13/36) patients were also diagnosed with lupus nephritis;61%(22/36) patients were treated with methylprednisolone more than 200 mg/d resulting in relief of symptom.Conclusion Female patients with SLE may be more likely to suffer from LMV;Enhanced abdominal CT scan is still essential to the diagnosis of LMV.LMV is correlated with urinary system malfunction.LMV always occurs in active lupus with low C3 and C4 level.More than half patients should be treated with corticosteroid and cyclophosphamide pulse therapy.
8.Establishment of a replicative senescence model of human gingival fibroblasts
Yiru XIA ; Yufeng XIE ; Rong SHU
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(5):578-582
Objective · To establish a replicative senescence model of human gingival fibroblasts (hGFs), investigate changes in aging related biological characteristics, and provide an efficient cell model for further study on the aging in periodontal diseases. Methods · hGFs were isolated from healthy gingival tissues and cultured with tissue block method in vitro. The tissue source was verified with immunofluorescence. hGFs were continuously cultured and cumulative population doublings (CPD) were calculated and used to draw the curves. Changes in the proliferative capacity of hGFs with CPDs of 10.82, 20.65, 29.52, 42.22, 60.79, and 70.03 were examined with CCK-8. Real-time PCR was used to evaluate changes in the mRNA expression of senescence-related genes p16INK4a and p21Cip1. Results · CPD curves showed that after continuous culture, the CPD value increased gradually and became stable after achieving 70.03. hGFs became flatter and more cell rocessesappeared with the increase of CPD value. The cell proliferative capacity declined and mRNA levels of p16INK4a and p21Cip1 significantly increased (P=0.000). Conclusion · A replicative senescence model of hGFs is established throughcontinuous culture. CPD curves can reflect the aging of hGFs.
9.A study on fatigue strength of laser welding of titanium and titanium alloy
Guangming XIE ; Rong XIA ; Qianwen WANG
Journal of Practical Stomatology 2009;25(4):463-466
Objective:To investigate the corrosion fatigue strength of laser-welded specimens fabricated from commercially pure titanium (TA2) and titanium alloy(TC4). Methods:TA2 and TC4 were mechanically processed into a certain size and joined by laser welding. A fatigue testing machine was used to test tensile load and fatigue strength after soaked in synthetic saliva. The fatigue fracture surface was examined by scanning electron microscopy (SEM). Results: The fatigue strengths of the laser-welded test specimens showed no significant differences compared to specimens in air. SEM examination showed that there were no defects such as corrosion pits. Conclusion: There are no significant differences between either laser-welded metal in the corrosion fatigue strength for dry specimens and specimens in synthetic saliva.