Objective:The infusion pumps are high risk equipment in clinic, the clinical risk of it is much higher the general medical equipment and diagnostic. Methods:FLUKE lagu1 was used to calibrate the Smiths infusion pumps in different conditions. Results: As a result, the quality control of it is particularly important. We introduce a method to calibrate model 1200 infusion pump from the angle of quality control. Conclusion: Infusion pump quality control testing should accord with clinical practice. Infusion pumps calibrated to provide security for the clinical infusion therapy and reduce the medical risk.

Objective To study the roles of apoptosis and expression of the related genes in minor labial salivary gland of patients with primary Sjogren′s syndrome (pSS). Methods Biopsies of minor submucosal labial salivary gland (SG) were obtained from 30 patients with pSS and 10 control individuals. The in situ end labeling and immunohistochemical staining were used to detect the apoptotic cells and the expression of Fas, FasL and Bcl-2. Results The percentage of apoptotic acinar and ductal epithelial cells (AEC and DEC) in labial salivary glands of patients with pSS was significantly higher than that of control respectively, but the percentage of apoptotic infiltrating mononuclear cells (IMC) showed no significant difference compared with that of control, pSS AEC and DEC showed increased expression of Fas/FasL and decreased expression of Bcl-2, whereas pSS IMC showed increased expression of Fas, Fas/FasL and Bcl-2. There was significant positive correlation between the percentage of apoptotic cells and the cells expressing Fas and FasL in pSS AEC DEC and IMC, respectively, and there was significant negative correlation between the percentage of the apoptotic cells and that of cells expressing Bcl-2 in pSS DEC and IMC, but there wasn′t correlation between the percentage of the apoptotic cells and that of cells expressing Bcl-2 in pSS AEC. Conclusions The apoptotic cells increased in the epithelial cells and decreased in IMC of the labial salivary glands may be one of the mechanisms leading to the glandular destruction found in pSS. In pSS labial salivary glands, the expression of Fas and FasL may promote apoptosis, while the expression of Bcl-2 may inhibit apoptosis. The increased expression of Bcl-2 in pSS IMC indicates that IMC may be able to escape apoptosis, resulting in inflammatory cell foci.

Objective To evaluate the value of high-frequency color Doppler ultrasound in the examination of pathological changes in the peripheral joints of patients with early rheumatoid arthritis (RA).Methods Peripheral joints of 30 consecutive patients with early rheumatoid arthritis (disease duration ＜1year) and 15 healthy volunteers were assessed with ultrasound searching for joint effusion,synovial hypertrophy,tendon lesion and bone erosions.The joints examined including bilateral elbows,wrists,knees,ankles,metacarpophalangeal joints (MCP),proximal interphalangeal joints (PIP) and metatar-sophalangeal joints (MTP).Data were analyzed with t-test and kappa test.Results Joint effusion and/or synovial hypertrophy were found in 471 joints (41.3％).Four hundred and four (35.4％) joints had joint effusion,359(31.5％) had synovial hypertrophy.Power Doppler signals were found in 128 (35.7％) joints with synovial hypertrophy.Periarticular tendon lesions were found in 90(25％) joints of all wrists,ankles and the 2nd to 5th metacarpophalangeal joints.Bone erosions were detected in 27 (2.4％) joints.The most likely involved joint in all peripheral jints was wrist which had the highest positive rate of effusion,synovial hypertrophy,bone erosion and power Doppler signals in the synovial membrane.Other joints which were easily involved with synovitis were knee,ankle,elbow,MTP,MCP and PIP.The positive rate of synovitis was highest in the MTP of all small joints exception the wrist.Synovitis present most frequently in the 2nd MCP of all MCPs,the 3rd PIP of all PIPs and the 2nd MTP of all MTPs.The kappa coefficient between clinical examination and ultrasound in the detection of peripheral joints synovitis was 0.21,showing very poor agreement.Conclusion High-frequency color Doppler ultrasound exa.mination is an effective method in assessing the pathological changes of peripheral joints of patients with early rheumatoid arthritis.It may improve the early diagnosis of RA and useful in assessing disease activity comprehensively.

HSV-1 infection-mediated regulation of mRNA translation in host cells is a systematic and complicated process. Investigation of the details of this mechanism will facilitate understanding of biological variations in the viral replication process and host cells. In this study, a comparative proteomics technology platform was applied by two-dimension electrophoresis of HSV-1 infected normal human L-02 cell and control cell lysates. The observed protein spots were analyzed qualitatively and quantitatively by the PDQuest software package. A number of the different observed protein spots closely associated with cellular protein synthesis were identified by matrix-assisted laser-desorption ionization-time of flight-mass spectrometry (MALDI-TOF-MS). The expression levels of the RPLP1 protein, which is required for mRNA translation, and KHSRP protein, which is involved in rapid decay of mRNA, were up-regulated, whereas the expression level of RNP H2, which is involved in positive regulation on the mRNA splicing process, was down-regulated. All of these results suggest that HSV-1 infection can influence cellular protein synthesis via modulation of cellular regulatory proteins involved in RNA splicing, translation and decay, resulting in optimisation of viral protein synthesis when cellular protein synthesis is shut off. Although there is need for further investigations regarding the detailed mechanisms of cellular protein control, our studies provide new insight into the targeting of varied virus signaling pathways involved in host cellular protein synthesis.

Objective To investigate the time distribution characteristics and the epidemic trends of imported malaria cases in Yunnan Province. Methods The malaria case records and epidemiological history data of Yunnan Province were collected, and the local infection cases were excluded. The data were statistical analyzed. Results The imported malaria cases had a sig-nificantly seasonal periodicity(Q=26.574,P<0.05)and epidemic trends(Q=35.487,P<0.05). The imported peak was in May,while February was the lowest month of imported cases,and the difference was significant(Z=-2.619,P<0.05). The simple seasonal prediction model was the best model(R2= 0.677,BIC = 4.867)for forecast while the residual sequence was white noise(Q=14.226,P>0.05). By using the model to predict the cases in January,February and March of 2016,the num-ber(95％CI)were 29(7-50),22(0-44)and 31(8-54),and the actual number of imported malaria cases were 29,24 and 38 cases respectively and all cases were included in the 95％CI. Conclusion The imported malaria cases in Yunnan Province had a significantly seasonal periodicity and epidemic trends,and the established model has good prediction on the recent cases.

Objective To analyze the characteristics of the rpoB, KatG and inhA genes mutations in rifampin and isoniazid resistant Mycobacterium tuberculosis (MTB) clinical isolates in Baise district, Guangxi autonomous region. Methods 128 MTB clinical strains were collected and isolated for drug susceptibility testing, and drug resistant strain DNA was subtracted for rpoB, KatG and inhA genes mutation analysis. Results 75%(27/36)isolates carried mutations in the rpoB gene,and 59.3%(16/27)isolates carried mutations in 531 sites. 44.1%(15/34) isolates carried mutations in KatG or inhA, and 66.7%(10/15) isolates appeared in KatG 315 site, with two new mutations found in KatG 279 and 427 site. In these mutation isolates, 13.3%(2/15) mutations appeared in inhA 5, 6.7%(1/15) in inhA 16, and 20%(3/15) in both katG and inhA. Conclusions The mutation of rpoB, katG and inhA genes in TB is highly correlated with its resistance to rifampin and isoniazid in Baise district, Guangxi autonomous region. The study will provide a basis for further understanding the anti-bacterium mechanism and quick diagnostic methods for drug-resistant tuberculosis.

Objective To understand the geographical features of malaria in Yunnan Province,so as to provide the refer?ence for malaria elimination. Methods The data of malaria in Yunnan Province from 2012 to 2015 were collected and ana?lyzed. Results Totally 2 586 malaria cases were reported in Yunnan Province from 2012 to 2015,in which 274(10.60%) were local cases and 2 311(89.37%)were abroad imported,and one(0.03%)was domestic imported. The imported malaria cases and local cases were analyzed according to the sources and locations respectively,and the arithmetic means of the num?bers of imported and local cases were 96.29 and 10.96 respectively,the standard deviations of the numbers of imported and local cases were 421.18 and 19.12 respectively,and the difference of the means was not significant(Z=-0.326,P>0.10). Both the imported and local malaria cases could be clustered into five sections by the number of 5. The Herfendal?Hirshman indexes of the imported and local malaria cases were 8 121 and 1 598 respectively. Conclusions There is no significant difference of the distribution between the imported and local malaria cases,and they should be attaching equal importance. The non?uniform de?gree of imported cases is higher than that of the local cases,while both of them could be divided into five major clusters in the prevention and control work.

OBJECTIVE: To study the clinical significance of the expression of p53, p63 and p73 protein and the correlation of p53 and p63 in nasal and paranasal sinus carcinoma (NPSC). METHOD: The immunohistochemical technique was used to detect the expression of p53, p63 and p73 in 67 cases of NPSC, para-cancer tissues and non-cancer tissues. RESULT: The positive rate of p53 and p63 protein in NPSC was significantly higher than that in park cancer tissues and non-cancer tissues (P<0.01), and there were a positive correlation between the expression of p53 and p63 protein in NPSC (P<0.01). But the expression of p73 had no significant difference among NPSC, para-cancer tissues and non-cancer tissues (P>0.05). CONCLUSION There are positive correlation between p53 and p63 protein in NPSC, and they may play an important role in the tumorgenesis of NPSC. The p73 may not be associated with tumorgenesis of NPSC.
Carcinoma, Squamous Cell ; metabolism ; pathology ; DNA-Binding Proteins ; metabolism ; Female ; Humans ; Male ; Middle Aged ; Nose Neoplasms ; metabolism ; pathology ; Nuclear Proteins ; metabolism ; Paranasal Sinus Neoplasms ; metabolism ; parasitology ; Trans-Activators ; metabolism ; Transcription Factors ; Tumor Protein p73 ; Tumor Suppressor Protein p53 ; metabolism ; Tumor Suppressor Proteins ; metabolism

OBJECTIVE: To investigate the effect of small interfering RNA (siRNA) targeting c-myc gene in Hep-2 cells. METHOD: siRNA targeting c-myc mRNA was designed and synthesized. In vitro cultured Hep-2 cells were transfected with lipofectamine 2000 and the inhibitory effect was detected by MTT, morphology, real time PCR assay. RESULT: 1) The MTT result showed the c-myc siRNA to be able effectively to suppress the Hep-2 cell multiplication; 2) The real time PCR result showed c-myc at mRNA level inhibition ratio at 94% in group S3; 3) The morphology result showed the c-myc siRNA to be able effectively to suppress the Hep-2 cell multiplication, the cell heteromorphism was diminished. CONCLUSION siRNA targeting c-myc can remarkably suppress the Hep-2 cell growth and multiplication.
Apoptosis ; Cell Division ; Cell Line, Tumor ; Cell Proliferation ; Gene Targeting ; Genes, myc ; genetics ; Humans ; RNA, Small Interfering ; genetics ; Transfection

Objective To investigate the clinical,serological and imaging features of antisynthetase syndrome (ASS) patients with different positive anti-aminoacyl-tRNA synthase (ARS) antibodies.Methods The demographic characteristics,major clinical data,serological parameters,high resolution CT (HRCT) imaging features and pulmonary function characteristics in 60 cases of ASS [including 42 cases with positive anti-histidine tRNA synthetase (Jo-1) antibody,and 7 cases with positive anti-threonyl tRNA synthetase (PL-7) antibody,5 cases with positive anti-alanyl tRNA synthetase (PL-12) antibody,3 cases with positive anti-glycyl tRNA synthetase (E J) antibody and 3 cases with positive anti-leucyl tRNA synthetase (OJ) antibody] were collected.The differences in ASS patients with different positive ARS antibodies were analyzed by the x2 test and Fisher exact test.Results ① The ASS with different positive ARS antibodies was common in patients with DM/PM,[60％ (36/60),28％ (17/60)],and also appeared in patients with other connective tissue diseases,such as RA(5％,3/60),SS(3％,2/60),SLE(2％,1/60),etc.With ASS diagnosed,ILD complicated with myositis was the most common clinical features (63％,38/60).Typical clinical triad syndrome (myositis,ILD and arthritis) in 52％(31/60) patients,and myositis complicated with ILD,and mechanics hands accounted for 38％ (23/60) respectively.Some patients were complicated with isolated arthritis (25％,15/60),myositis (23％,14/60) and ILD (13％,8/60).The typical triad syndrome (myositis,ILD and arthritis) only accounted for 5％(3/60).The incidence of Jo-1,EJ and OJ antibodies [71％(30/42),100％(3/3),100％(3/3)] was significantly higher than that of PL-12 antibody (20％,1/5).There was a statistically significant difference (x2=5.263,P＜0.05;x2=4.8,P＜ 0.05;x2=4.8,P＜0.05).② The positive rate of ANA was 98％(59/60).Furthermore,the fluorescence staining model of anti-OJ antibody ANA was spotted,and the other subtypes were cytosolic.The positive rate of anti-SSA-52 antibody was 45％(27/60),and there was no statistical difference between the subtypes (P＞0.05).③ The ILD incidence of different positive antibodies had no significant difference in 82％ (49/60) ASS patients with ILD.The lung function in patients with ASS-ILD showed restrictive ventilation and diffused dysfunction.Grid shadow (76％,37/49) and grind glass (35％,17/49) were the most common signs of HRCT.Nonspecific interstitial pneumonia (NSIP) (78％,38/49) was the most common subtype of ILD.The incidence of traction bronchiectasis in ASS patients with PL-12 antibody (75％,3/4) was higher than that in ASS patients with Jo-1 antibody (22％,8/36).The incidence of pleural effusion in ASS patients with OJ antibody (100％,2/2) was significantly higher than that in ASS patients with Jo-1 antibody (17％,6/36).The incidence of pericardial effusion in ASS patients with PL-7 antibody (75％,3/4) was significantly higher than that in ASS patients with Jo-1 antibody (19.4％,7/36).All the differences were statistically significant (x2=5.26,P＜0.05).The ASS-ILD lung function indicated restrictive ventilatory function and diffusion dysfunction.④ There was no significant difference in clinical data,serological indicators,ILD imaging findings,interstitial lung types and lung function between Jo-1 antibody and non-Jo-1 antibody ASS patients (P＞0.05).Conclusion The ASS with different positive ARS antibodies is very common in patients with DM/PM,and is also observed in patients with other connective tissue diseases.ILD and myositis are the most common clinical features of ASS,followed by the typical triad syndrome (myositis,ILD and arthritis).Myositis is commonly observed in ASS patients with Jo-1,EJ and OJ antibodies,while is rarely observed in ASS patients with PL-12 antibody.The diagnosis of ASS should be alert to the onset of isolated arthritis or ILD.Anti-SSA-52 antibody may be related to ASS.NSIP is the most common HRCT pattern in ASS-ILD patients.There are some differences in signs among various subtypes,indicating that the difference of fibrosis in the lung and inflammatory reactions in the body being correlated with the ASS specificities.